CN114961013A

CN114961013A - Replaceable component type energy dissipation support, self-resetting support and use method of replaceable component type energy dissipation support

Info

Publication number: CN114961013A
Application number: CN202210720603.3A
Authority: CN
Inventors: 郑国足; 韩建平; 张守丽
Original assignee: Lanzhou University of Technology
Current assignee: Lanzhou University of Technology
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2022-08-30
Anticipated expiration: 2042-06-24
Also published as: CN114961013B

Abstract

The invention relates to the technical field of civil engineering, in particular to a replaceable component type novel energy dissipation brace and a novel self-resetting brace which consume energy by utilizing a notched thick-wall steel pipe and respective installation and use methods, and is applied to the field of damping control of buildings and bridge structures. The novel energy dissipation support is simple in structure, high in ductility, assembly type, reusable, stable in performance, high in bearing capacity and replaceable in core components, and comprises a first connecting piece, a first outer sleeve, a guide shaft, a second connecting piece, a first cut thick-wall steel pipe, a sealing plate, a limiting nut, a first cut thick-wall steel pipe connecting flange, a third stopping nut, a first connecting bolt and a fifth connecting bolt; one end of the first outer sleeve is connected with the first connecting piece, and the other end of the first outer sleeve is connected with the sealing plate so as to overcome the defects of the conventional self-resetting support.

Description

Replaceable component type energy dissipation support, self-resetting support and using method thereof

Technical Field

The invention relates to the technical field of civil engineering, in particular to a replaceable component type novel energy dissipation support and a novel self-resetting support which dissipate energy by utilizing a notched thick-wall steel pipe and respective installation and use methods, and is applied to the field of shock absorption control of buildings and bridge structures.

Background

How to improve the earthquake-resistant performance of the building becomes a research hotspot of researchers in the engineering earthquake-resistant world all the time. One of the current effective measures is to replace the traditional support by the energy-consuming support, and consume the energy input to the building by the earthquake, thereby reducing the damage to the building caused by the earthquake. Among all energy-consuming supports, the currently widely applied buckling-restrained support (or called buckling restrained support, referred to as BRB for short) which is proposed by a japanese scholars is subject to yielding but not yielding when the support is pressed, and the energy-consuming support has good energy-consuming capacity, thereby playing a role of a structure fuse and effectively avoiding the structure from being seriously damaged in a large earthquake. Since the introduction of BRB into China, Chinese scholars have conducted a great deal of research on BRB, developed many new structural forms, and also have practical engineering applications. However, the current products still have some defects, such as easy buckling of the end part of the member, unbalanced compression under the load action, easy cracking of concrete and mortar under the repeated load action in the grouting type BRB, sensitive manufacturing error of the supporting performance, immediate failure and quit work (only one line of defense) of the support after the inner core is damaged by tension, limited supporting ductility (the existing test data show that most of the BRBs can not meet the maximum ductility requirement of a buckling restrained supporting frame under 2% exceeding probability earthquake input within 50 years), and incapability of recycling the support, so that the integral replacement after earthquake or huge waste is caused during product sampling inspection. In addition, the BRB mainly consumes energy by plastic deformation of metal, so that a certain residual deformation of the building is generated after the earthquake, and when the residual deformation is large, the building may lose its use function, thereby affecting normal life and production of people. In view of this, a new quake-proof design concept-recoverable functional structure is proposed by the scholars, and the structure is characterized in that the using function can be recovered without repairing or partially repairing under the condition of not influencing the use after the earthquake, so that the extensive research of the engineering quake-proof field is obtained. One of the ways to realize the restorable functional structure is to adopt a new self-resetting energy dissipation support to replace the traditional support, and realize the post-earthquake restoration of the whole structure through the resetting function of the self-resetting energy dissipation support. The mode has minimal change to the traditional structural system, thereby being easier to popularize and apply. Most of the current self-resetting energy-consuming supports are realized by adding a resetting material such as prestressed steel bars, prestressed steel strands or shape memory alloys on the basis of the traditional BRB, and the traditional BRB has the defects and is not simple in structure, the structure is quite complex after the resetting function is added, and the manufacturing and assembling difficulty is high. On the other hand, the prestressed reinforcement and the prestressed steel strand have small elastic deformation, so that the deformation capacity of the self-resetting support is limited, the shape memory alloy has good elastic deformation capacity, but the performance of the shape memory alloy is obviously influenced by temperature, the shape memory alloy can be restored to the state before deformation only by heating after deformation, the price is relatively high, and the manufacturing cost of the support is increased. The friction surface of the self-resetting energy-consuming support is gradually smoothed under the action of reciprocating load, and the friction coefficient changes along with the increase of the friction times, so that the friction force is reduced, and the reliability in long-term use is further reduced.

The invention aims to solve the problems in the prior art, provides a novel energy dissipation brace which is simple in structure, high in ductility, assembled, reusable, stable in performance, high in bearing capacity and replaceable in core components, serves as a better substitute product of the conventional Buckling Restrained Brace (BRB), and is additionally provided with a disc spring set for resetting to form a novel self-resetting energy dissipation brace based on energy dissipation of a notched thick-walled steel pipe, so that the defects of the conventional self-resetting brace are overcome.

Disclosure of Invention

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a replaceable component type energy consumption support comprises a first connecting piece, a first outer sleeve, a guide shaft, a second connecting piece, a first cut thick-wall steel pipe, a sealing plate, a limiting nut, a first cut thick-wall steel pipe connecting flange, a third retaining nut, a first connecting bolt and a fifth connecting bolt; one end of the first outer sleeve is connected with a first connecting piece;

a fixed connecting disc is arranged in the first outer sleeve, penetrates through the guide shaft and is connected with the guide shaft through a first cut thick-wall steel pipe connecting flange, a second connecting piece is arranged at one end of the guide shaft, a connecting limiting nut is arranged at the other end of the guide shaft, and the limiting nut is blocked at one side of the fixed connecting disc; a first notch thick-wall steel pipe is sleeved on the guide shaft, one end of the first notch thick-wall steel pipe is clamped and blocked at the other side of the fixed connection disc, and the other end of the first notch thick-wall steel pipe is clamped and blocked through a third retaining nut.

The utility model provides a can replace part type from restoring to throne and support, includes a can replace part type power consumption support, still include the second outer sleeve pipe, be equipped with fixed connection pad in the second outer sleeve pipe, the second outer sleeve pipe is spliced with first outer sleeve pipe, the guide shaft passes the second outer sleeve pipe, suit belleville spring or belleville spring group on the guide shaft, belleville spring or belleville spring group both ends joint respectively between the fixed connection pad of adjacent sheathed tube.

And a first cut thick-wall steel pipe and a second cut thick-wall steel pipe are arranged on two sides of the disc spring or the disc spring group.

A plurality of groups of notches are arranged on the first notch thick-wall steel pipe and the second notch thick-wall steel pipe in a staggered mode; the first notch thick-wall steel pipe or the second notch thick-wall steel pipe is divided into a first connecting section, an energy consumption section and a second connecting section, the first connecting section is provided with internal threads and is used for being fixedly connected with the guide shaft, the second connecting section is provided with external threads and is used for being connected with the first notch thick-wall steel pipe connecting flange, the inner diameter of the energy consumption section is larger than the diameter of the guide shaft by 1-2 mm, and the length of the second notch thick-wall steel pipe is larger than or equal to that of the first notch thick-wall steel pipe.

The left end of the guide shaft is provided with a left end thread for installing a limit nut, the right end of the guide shaft is provided with a right end thread for connecting with a second connecting piece, the middle part of the guide shaft is provided with a left thread and a right thread, the left thread is used for installing a first cut thick-wall steel pipe and a third stopping nut, the right thread is used for installing a second cut thick-wall steel pipe and a fourth stopping nut, the specification and the size of the third stopping nut and the specification and the size of the fourth stopping nut are the same, an unthreaded section is arranged between the left thread and the right thread, a left end unthreaded section is arranged between the left end thread and the left thread, and a right end unthreaded section is arranged between the right thread and the right end thread; the first connecting piece is formed by welding an ear plate and an end plate, a round hole is formed in the ear plate and used for connecting a pin shaft, and bolt holes are uniformly formed in the end plate along the circumferential direction and used for connecting the first connecting piece and the first outer sleeve; the second connecting piece is formed by welding a connector and an ear plate, a threaded hole is formed in the middle of the connector, the threaded hole is in matched connection with the right end in a threaded mode, a round hole is formed in the middle of the ear plate and used for pin shaft connection, and the diameter of the round hole is the same as that of the round hole.

The first outer sleeve is formed by combining a first flange, a first steel pipe, a second flange, a second steel pipe and a third flange, the inner diameter of the first flange is the same as the outer diameter of the first steel pipe, bolt holes are welded and connected to the left side of the first steel pipe and are annularly arranged, the bolt holes correspond to the bolt holes arranged on the first connecting piece and are connected through first connecting bolts, the right side of the first steel pipe is welded on the second flange, the length of the first steel pipe is ensured to ensure that the distance between the right end face of the limiting nut and the left end face of the second flange is not less than the limiting deformation of the support when the guide shaft moves rightwards, the distance between the left end face of the limiting nut and the right end face of the end plate is not less than the limiting deformation of the support when the guide shaft moves leftwards, the length of the first steel pipe is not less than the sum of twice of the design limiting deformation of the support and the thickness of the limiting nut, and the second flange is uniformly provided with through holes along the central matrix, the left side of the second steel pipe is welded and connected onto the second flange, the inner diameter and the outer diameter of the second steel pipe are the same as those of the first steel pipe, the third flange is in a circular ring shape, the inner diameter of the third flange is the same as that of the second steel pipe, the third flange is welded and connected onto the right side of the second steel pipe, and bolt holes are uniformly formed in the third flange along the circumferential direction;

the third outer sleeve is composed of a sixth flange, a fourth steel pipe, a seventh flange and a fifth steel pipe, wherein the inner diameter of the sixth flange is the same as the outer diameter of the fourth steel pipe, bolt holes are uniformly formed in the circumferential direction and correspond to the bolt holes, the inner diameter and the outer diameter of the fourth steel pipe and the outer diameter of the fifth steel pipe are the same as those of the first steel pipe and the second steel pipe, all sizes of the seventh flange are completely the same as those of the second flange, and the diameters, the number and the positions of the bolt holes formed in the circumferential direction are the same as those of the bolt holes; the fifth steel pipe does not bear external load, the length of the fifth steel pipe is preferably 100mm-200mm, and a threaded hole is formed in one side, far away from the seventh flange, of the fifth steel pipe and used for installing a fourth connecting bolt.

The sealing plate comprises a middle round hole and bolt holes arranged along the annular direction, the right end opening of the third outer sleeve is sealed, and the bolt holes are uniformly arranged along the annular direction and used for mounting fourth connecting bolts; the limiting nut is arranged at the left end of the guide shaft and used for limiting the guide shaft to be pulled out of the support when the first cut thick-wall steel pipe and the second cut thick-wall steel pipe are both damaged;

the first notch thick-wall steel pipe connecting flange is in a convex shape and comprises internal threaded holes and threaded holes which are uniformly distributed along the circumferential direction, the internal threaded holes are in threaded connection with the second connecting section of the first notch thick-wall steel pipe, and the threaded holes are used for connecting the first notch thick-wall steel pipe connecting flange and the first outer sleeve together through fifth connecting bolts;

the second cut thick-wall steel pipe connecting flange is the same as the first cut thick-wall steel pipe connecting flange in size;

the third retaining nut is arranged on the right side of the first cut thick-wall steel pipe and used for preventing the first cut thick-wall steel pipe from displacing relative to the guide shaft under the action of load;

the fourth retaining nut is arranged on the left side of the second notched thick-walled steel pipe and used for preventing the second notched thick-walled steel pipe from displacing relative to the guide shaft under the action of load;

the first connecting bolt is used for fixing the first connecting piece and the first outer sleeve, and the number and the diameter of the first connecting bolt are determined according to the bearing capacity of the support design; the second connecting bolt is used for fixing the first outer sleeve and the second outer sleeve or the third outer sleeve; the fourth connecting bolt is used for fixing the sealing plate and the third outer sleeve; the fifth connecting bolt is used for fixing the first cut thick-wall steel pipe connecting flange and the first outer sleeve; and the sixth connecting bolt is used for fixing the second notched thick-walled steel pipe connecting flange and the third outer sleeve.

And sealing plates are arranged on the first outer sleeve and the third outer sleeve.

Wherein: the cut thick-wall steel pipe is a metal pipe, wherein the material is LYP100, LYP160, Q235, Q345, Q460, 20# or 45# and aluminum alloy; the wall thickness range of the thick-walled steel pipe is defined as: 10mm-120 mm; combined disc spring bearing capacity range: 1kN ~5000kN, single incision thick wall steel pipe bearing capacity scope: 10kN ~10000kN, two parallelly connected incision thick wall steel pipes, the bearing capacity will double.

The invention has the beneficial effects that:

1) the novel energy-consuming support is high in ductility and strong in deformability, the deformability of the novel energy-consuming support is positively correlated with the number of circular rings formed after the notch of the notch thick-wall steel pipe, the deformability of the novel energy-consuming support theoretically has no upper limit, and the deformability of the novel energy-consuming support is increased as long as the number of the circular rings is increased.

2) Have 2-3 lines of defense during novel energy consumption support destruction, have 3 lines of defense when incision thick wall steel pipe is arranged in pairs (the 1 st line of defense is first incision thick wall steel pipe fatigue fracture, the 2 nd line of defense is second incision thick wall steel pipe fatigue fracture, the 3 rd line of defense is that stop nut is pulled and is destroyed), have 2 lines of defense when incision thick wall steel pipe arranges alone (the 1 st line of defense is first incision thick wall steel pipe fatigue fracture, the 2 nd line of defense is that stop nut is pulled and is destroyed).

3) Novel power consumption is supported and is novel from restoring to throne and support and have local replaceability, reuse nature and quick repairability, and after the earthquake loss, only need change incision thick wall steel pipe, but other part reuse, repair fast, the degree of difficulty is little, repair cost hangs down.

4) Because the deformation of the notched thick-walled steel pipe is symmetrical when being pulled and pressed, the novel energy-consuming support and the novel self-resetting support formed by the method have the characteristics of tension and compression and the like under the action of reciprocating load.

5) Novel power consumption is supported and is novel from restoring to throne and support to preparation and installation error insensitive, the two mainly rely on incision thick wall steel pipe power consumption, as long as guarantee that incision thick wall steel pipe can take place axial deformation can, preparation and installation error can not show the mechanical properties who influences two kinds of novel supports, in addition, through the length that adjustment direction restraint axle gos deep into the overcoat steel pipe, can carry out small adjustment to supporting length to adapt to different installation errors.

6) The novel energy-consuming support and the novel self-resetting support are simple in structure and assembly, all components can be produced in batch in a factory, welding connection is avoided in the assembly process, and the assembly construction speed is high.

Drawings

FIG. 1 is a cross-sectional view of the novel energy dissipating support of the present invention

FIG. 2 is a cross-sectional view of the novel self-resetting support of the present invention

FIG. 3 is a schematic view of a first connecting member according to the present invention

FIG. 4 is a schematic view of a first outer sleeve according to the present invention

FIG. 5 is a schematic view of a second flange of the present invention

FIG. 6 is a schematic view of a second outer sleeve of the present invention

FIG. 7 is a schematic view of a third outer sleeve according to the present invention

FIG. 8 is a schematic view of a guide shaft according to the present invention

FIG. 9 is a schematic view of a second connector of the present invention

FIG. 10 is a schematic view of a first cut thick-walled steel pipe of the present invention

FIG. 11 is a schematic view of a sealing plate of the present invention

FIG. 12 shows a first cut thick-walled steel pipe coupling flange according to the present invention

FIG. 13 is a cross-sectional view of the novel self-resetting support of the present invention for separately arranging the notched thick-walled steel pipes

FIG. 14 is a cross-sectional view of the novel energy dissipation brace of the present invention with a single notched thick-walled steel tube

Reference numbers in the figures: 1-a first connector; 2-a first outer sleeve; 3-a second outer sleeve; 4-a third outer sleeve; 5-a guide shaft; 6-a second connector; 7-a first cut thick-walled steel pipe; 8-disc spring group 9-second cut thick-walled steel pipe; 10-closing the plate; 11-a limit nut; 12-a first cut thick-wall steel pipe connecting flange; 13-second cut thick-wall steel pipe connecting flange; 14-a first force transfer nut; 15-a second force-transmitting nut; 16-a first backstop nut; 17-a second backstop nut; 18-a third backstop nut; 19-a fourth back stop nut; 20-a first connecting bolt; 21-a second connecting bolt; 22-a third connecting bolt; 23-a fourth connecting bolt; 24-a fifth connecting bolt; 25-sixth connecting bolt, 26-disc spring and 27-gasket.

Detailed Description

Example 1

The utility model provides an utilize novel power consumption of replaceable component type of incision thick wall steel pipe power consumption to support, includes first connecting piece, first outer tube, third outer tube, guiding axle and second connecting piece, first incision thick wall steel pipe, second incision thick wall steel pipe, shrouding, stop nut, first incision thick wall steel pipe flange, second incision thick wall steel pipe flange, third stopping nut, fourth stopping nut, first connecting bolt, second connecting bolt, fourth connecting bolt, fifth connecting bolt and sixth connecting bolt.

The first connecting piece 1 is formed by welding an ear plate 101 and an end plate 102, a round hole 103 is formed in the ear plate 101 and used for pin shaft connection, and bolt holes 104 are uniformly formed in the end plate 102 along the annular direction and used for connecting the first connecting piece 1 and the first outer sleeve 2.

The first outer sleeve 2 is formed by combining a first flange 201, a first steel pipe 203, a second flange 204, a second steel pipe 206 and a third flange 207, the inner diameter of the first flange 201 is the same as the outer diameter of the first steel pipe 203, the first flange 201 is connected to the left side of the first steel pipe 203 in a welding mode, bolt holes 202 are arranged in the circumferential direction, the number, the size and the positions of the bolt holes 202 are completely consistent with those of the bolt holes 104 arranged on the first connecting piece 1, the bolt holes are connected through a first connecting bolt 20, the right side of the first steel pipe 203 is welded on the second flange 204, and the length of the first outer sleeve is ensured to be not less than the supporting limit deformation when the guide shaft 5 moves rightwards (namely, the supporting tension) and the distance between the right end face of the position-limiting nut 11 and the left end face of the second flange 204, and not less than the supporting limit deformation when the guide shaft 5 moves leftwards (namely, the supporting compression), so that the length of the first steel pipe 203 is not less than twice the supporting design limit deformation and the thickness of the position-limiting nut 11 And the inner diameter of the second flange 204 is larger than the diameter of the guide shaft 5 by 1mm-1.5mm, through holes 205 are uniformly formed in the circumferential direction, the left side of the second steel pipe 206 is welded to the second flange 204, the inner diameter and the outer diameter of the second flange are the same as those of the first steel pipe 203, the third flange 207 is in a circular ring shape, the inner diameter and the outer diameter of the second steel pipe 206 are the same, the third flange is welded to the right side of the second steel pipe 206, and bolt holes 208 are uniformly formed in the circumferential direction.

The third outer sleeve 4 is composed of a sixth flange 401, a fourth steel pipe 403, a seventh flange 404 and a fifth steel pipe 406, the sixth flange 401 has the same inner diameter as the outer diameter of the fourth steel pipe 403, bolt holes 402 are uniformly arranged along the circumferential direction, the bolt holes 402 have the same diameter, number and arrangement position as the bolt holes 208, the fourth steel pipe 403 and the fifth steel pipe 406 have the same inner and outer diameters as the first steel pipe 203 and the second steel pipe 206, the seventh flange 404 has the same all dimensions as the second flange 204, and the bolt holes 405 arranged along the circumferential direction have the same diameter, number and position as the bolt holes 205. The fifth steel pipe 406 does not bear external load, the length of the fifth steel pipe is preferably 100mm-200mm, and a threaded hole 407 is formed in one side, away from the seventh flange 404, and is used for mounting the fourth connecting bolt 23. The first outer sleeve 2 is formed by combining a first flange 201, a first steel pipe 203, a second flange 204, a second steel pipe 206 and a third flange 208, the inner diameter of the first flange 201 is the same as the outer diameter of the first steel pipe 203, the first flange 201 is connected to the left side of the first steel pipe 203 in a welding mode, bolt holes 202 are arranged in the circumferential direction, the number, the size and the positions of the bolt holes 202 are completely consistent with those of the bolt holes 104 arranged on the first connecting piece 1, the bolt holes are connected through a first connecting bolt 20, the right side of the first steel pipe 203 is welded on the second flange 204, and the length of the first outer sleeve is ensured to be not less than the supporting limit deformation when the guide shaft 5 moves rightwards (namely, the supporting tension) and the distance between the right end face of the position-limiting nut 11 and the left end face of the second flange 204, and not less than the supporting limit deformation when the guide shaft 5 moves leftwards (namely, the supporting compression), so that the length of the first steel pipe 203 is not less than twice the supporting design limit deformation and the thickness of the position-limiting nut 11 And the inner diameter of the second flange 204 is 1mm-1.5mm larger than the diameter of the guide shaft 5, through holes 205 are uniformly formed in the circumferential direction, the left side of the second steel pipe 206 is welded on the second flange 204, the inner diameter and the outer diameter of the second flange are the same as those of the first steel pipe 203, the third flange 207 is in a circular ring shape, the inner diameter and the outer diameter of the second steel pipe 206 are the same, the third flange is welded on the right side of the second steel pipe 206, and bolt holes 208 are uniformly formed in the circumferential direction.

The second outer sleeve 3 is composed of a fourth flange 301, a third steel pipe 303 and a fifth flange 304, the inner diameter of the fourth flange 301 is larger than the outer diameter of the first cut thick-wall steel pipe connecting flange 12, bolt holes 302 are uniformly arranged along the circumferential direction, the diameters, the numbers and the arrangement positions of the bolt holes 302 are completely the same as those of the bolt holes 208, the inner diameter of the third steel pipe 303 is larger than the outer diameter of the disc spring group 8 by at least 2mm, the length of the third steel pipe is equal to the length of the compressed disc spring group 8, the left side of the third steel pipe is welded on the fourth flange 301, the fifth flange 304 is welded on the right side of the third steel pipe 303, the inner diameter of the third steel pipe 303 is equal to the outer diameter of the third steel pipe 303, and the bolt holes 305 are uniformly arranged along the circumferential direction.

The third outer sleeve 4 is composed of a sixth flange 401, a fourth steel pipe 403, a seventh flange 404 and a fifth steel pipe 406, all the dimensions of the sixth flange 401 are completely the same as those of the fourth flange 301, the diameters, the number and the positions of the bolt holes 402 arranged in the circumferential direction are the same as those of the bolt holes 302, the inner and outer diameters of the fourth steel pipe 403 and the fifth steel pipe 406 are the same as those of the first steel pipe 203, the second steel pipe 206 and the third steel pipe 303, all the dimensions of the seventh flange 404 are completely the same as those of the second flange 204, and the diameters, the number and the positions of the bolt holes 405 arranged in the circumferential direction are the same as those of the bolt holes 205. The fifth steel pipe 406 does not bear external load, the length of the fifth steel pipe is preferably 100mm-200mm, and a threaded hole 407 is formed in one side, away from the seventh flange 404, and is used for mounting the fourth connecting bolt 23.

The guide shaft 5 is made of steel materials such as Q235, Q345, 20#, 45# or 40Cr, straightening treatment is carried out during processing, the diameter of the guide shaft 5 is not less than a calculated value when the guide shaft 5 yields under the action of 1.2 times of support limit load, namely, the guide shaft 5 is not subjected to plastic deformation under the action of 1.2 times of support limit load, the length of the guide shaft is not less than the sum of the lengths of the first outer sleeve 2 and the third outer sleeve 4 and the depth of the guide shaft 5 extending into the second connecting piece 6, a left end thread 501 is arranged at the left end and used for installing the limit nut 11, a right end thread 507 is arranged at the right end and used for connecting the second connecting piece 6, a left thread 503 and a right thread 505 are arranged at the middle part, the left thread 503 is used for installing the first notch thick-walled steel pipe 7 and the third stop nut 18, the right thread 505 is used for installing the second notch thick-walled steel pipe 9 and the fourth stop nut 19, and the third stop nut 18 and the fourth stop nut 19 have the same specification and size, the left thread 503 and the right thread 505 are provided with a non-threaded section 504, the length of the non-threaded section is not more than the distance from the right end of the third retaining nut 18 to the left end of the fourth retaining nut 19, the diameter of the non-threaded section is the same as the outer diameter of the left thread 503 and the right thread 505, the left non-threaded section 502 is provided between the left thread 501 and the left thread 503, the right non-threaded section 506 is provided between the right thread 505 and the right thread 507, and the left non-threaded section 502 and the right non-threaded section 506 are the same in diameter and should be smaller than the inner diameter of the third retaining nut 18 and the fourth retaining nut 19.

The second connecting piece 6 is formed by welding a connecting head 601 and an ear plate 603, a threaded hole 602 is formed in the middle of the connecting head 601, the threaded hole 602 is matched with a thread 507, the thread pitch of the threaded hole 602 is the same as the inner diameter and the outer diameter of the threaded hole 507, and the length of the threaded hole 602 is smaller than the thickness of the connecting head 601 by 10-20 mm. The middle part of the ear plate 603 is provided with a round hole 604 for pin connection, and the diameter of the round hole is the same as that of the round hole 103.

The first cut thick-wall steel pipe 7 is made of LYP100, LYP160, Q235, Q345, Q460, 20#, 45# or aluminum alloy round steel or steel pipes, is a core energy dissipation element, and is characterized in that the tensile and compression strength and the like can be realized under the action of axial load, the core energy dissipation element can be arranged in pairs or independently and comprises a first connecting section 701, an energy dissipation section 702 and a second connecting section 703, the first connecting section 701 is provided with internal threads for fixedly connecting with the guide shaft 5, the second connecting section 703 is provided with external threads for connecting with the first cut thick-wall steel pipe connecting flange 12, the inner diameter of the energy dissipation section 702 is 1mm-2mm larger than the diameter of the guide shaft 5, the guide shaft 5 can restrain the energy dissipation section and prevent lateral instability from occurring, and the energy dissipation section 702 is integrally made of a thick-wall steel pipe which is cut perpendicular to the axial direction thereof, the steel pipe comprises a notch 704, a notch 705 and a circular ring 706, wherein the notch 704 and the notch 705 are symmetrically arranged, namely, the notch 704 and the notch 705 are not cut through, the notch 704 and the notch 705 are perpendicular to each other, the circular ring 706 is formed between the notch 704 and the notch 705, the circular ring 706 generates plastic deformation under the action of axial load to consume energy, the first power of radial width and the third power of axial thickness of the circular ring 706 are in direct proportion to the rigidity of the first notch thick-wall steel pipe 7, the third power of intermediate diameter is in inverse proportion to the rigidity of the first notch thick-wall steel pipe 7, the quantity of the circular ring 706 is in inverse proportion to the rigidity of the first notch thick-wall steel pipe 7 and is in direct proportion to the deformability of the circular ring, the rigidity, the bearing capacity and the deformability of the first notch thick-wall steel pipe 7 can be flexibly adjusted by changing the intermediate diameter, the axial thickness, the radial width and the quantity of the circular ring 706, the quantity of the circular ring can be increased remarkably to increase the deformability of the rigidity and the bearing capacity of the circular ring, for example, the cut thick-walled steel pipe made of Q235 steel and having a pitch diameter of 111mm, a ring radial width of 29mm, a ring axial thickness of 15mm and a ring number of 8 has a limit bearing capacity of about 160kN and a limit deformation of about 80 mm.

The inner diameter of the energy consumption section and the outer diameter of the connecting section of the second cut thick-wall steel pipe 9 are completely the same as those of the first cut thick-wall steel pipe 7, the material strength, the middle diameter of the circular ring, the thickness of the circular ring, the radial width of the circular ring and the number of the circular rings can be completely the same as those of the first cut thick-wall steel pipe 7, different parameters can be adopted, and the axial thickness of the circular ring is increased to enable the second cut thick-wall steel pipe 9 to have higher rigidity and bearing capacity, so that the strength of the third outer sleeve 4 is fully utilized.

The shrouding 10 does not bear the external load for the right-hand member mouth of shutoff third outer tube 4 prevents that debris from getting into to support inside, is formed by ordinary steel preparation, contains middle round hole 1001 and bolt hole 1002 that arranges along the hoop, and its external diameter is the same with first outer tube 2, second outer tube 3 and third outer tube 4, the diameter ratio of round hole 1001 is 0.5mm-1.5mm bigger than the diameter of guiding shaft 5, bolt hole 1002 evenly arranges along the hoop for install fourth connecting bolt 23.

And the limiting nut 11 is arranged at the left end of the guide shaft 5 and used for limiting the guide shaft 5 to be pulled out from the support when the first cut thick-wall steel pipe 7 and the second cut thick-wall steel pipe 9 are damaged, and is a third defense line of the support.

The first cut thick-wall steel pipe connecting flange 12 is convex and comprises internal threaded holes 1201 and threaded holes 1202 which are uniformly distributed in the circumferential direction, the internal threaded holes 1201 are in threaded connection with the second connecting section 703 of the first cut thick-wall steel pipe, and the threaded holes 1202 are used for connecting the first cut thick-wall steel pipe connecting flange 12 and the first outer sleeve 2 together through fifth connecting bolts 24.

The second notched thick-walled steel pipe connecting flange 13 has the same dimensions as the first notched thick-walled steel pipe connecting flange 12.

The third retaining nut 18 is attached to the right side of the first notched thick-walled steel pipe 7 and prevents the first notched thick-walled steel pipe 7 from being displaced relative to the guide shaft 5 by being supported under load.

The fourth back stop nut 19 is attached to the left side of the second cut thick steel pipe 9 and prevents the second cut thick steel pipe 9 from being displaced relative to the guide shaft 5 by being supported under load.

The first connecting bolt 20 is used for fixing the first connecting piece 1 and the first outer sleeve 2, and the number and the diameter of the first connecting bolt are determined according to the bearing capacity of the support design.

The second connecting bolt 21 is used for fixing the first outer sleeve 2 and the third outer sleeve 4.

And the fourth connecting bolt 23 is used for fixing the closing plate 10 and the third outer sleeve 4.

And the fifth connecting bolt 24 is used for fixing the first cut thick-wall steel pipe connecting flange 12 and the first outer sleeve 2.

And the sixth connecting bolt 25 is used for fixing the second cut thick-wall steel pipe connecting flange 13 and the third outer sleeve 4.

The installation and use method comprises the following steps:

1. screwing a third retaining nut 18 and a fourth retaining nut 19 into the middle of the guide shaft 5 from the left end and the right end of the guide shaft respectively;

2. marking installation positioning lines of a first cut thick-walled steel pipe 7 and a second cut thick-walled steel pipe 9 on the guide shaft 5, wherein the distance from the installation positioning line of the first cut thick-walled steel pipe 7 to the left end of the guide shaft 5 is the sum of the thickness of the limit nut 11, the thickness of the second flange 204, the length of the first cut thick-walled steel pipe 7 and the support limit deformation, and the distance from the installation positioning line of the second cut thick-walled steel pipe 9 to the right end of the guide shaft 5 is the sum of the depth of the guide shaft 5 extending into the second connecting piece 6, the support limit deformation, the thickness of the sealing plate 10, the length of the fifth steel pipe 406 and the thickness of the seventh flange 404;

3. screwing the first cut thick-walled steel pipe 7 from the left end of the guide shaft 5 so that the left end thereof coincides with the mounting positioning line of the first cut thick-walled steel pipe 7, and screwing the second cut thick-walled steel pipe 9 from the right end of the guide shaft so that the right end thereof coincides with the mounting positioning line of the second cut thick-walled steel pipe 9;

4. screwing and locking a third retaining nut 18 and a fourth retaining nut 19 to the right end of the first notched thick-walled steel pipe 7 and the left end of the second notched thick-walled steel pipe 9 respectively;

5. installing a first notched thick-walled steel pipe connecting flange 12 and a second notched thick-walled steel pipe connecting flange 13;

6. the first outer sleeve 2 is sleeved from the left end of the guide shaft, so that the right end of the second flange 204 is in contact with the left end of the first cut thick-walled steel pipe connecting flange 12, and a fifth connecting bolt 24 is installed;

7. installing a limit nut 11;

8. sleeving the third outer sleeve 4 from the right end of the guide shaft 5, and installing a second connecting bolt 21;

9. mounting the sixth connecting bolt 25;

10. sheathing a sealing plate 10 from the right end of the guide shaft 5, and installing a fourth connecting bolt 23;

11. installing a first connecting piece 1 and a second connecting piece 6;

12. after a large earthquake, energy-consuming components in the novel energy-consuming support can be replaced without being integrally replaced, the novel energy-consuming support is firstly detached from the building installation part, then the novel energy-consuming support is disassembled according to the sequence opposite to the assembly of the novel energy-consuming support, and the first cut thick-wall steel pipe 7 and the second cut thick-wall steel pipe 9 are replaced and then are reassembled, so that the use function of the novel energy-consuming support can be recovered.

Example 2

The utility model provides an utilize novel from restoring to throne of removable part type of incision thick wall steel pipe power consumption to support, includes first connecting piece, first outer tube, the second outer tube, the third outer tube, the guiding axle, the second connecting piece, first incision thick wall steel pipe, belleville spring group, second incision thick wall steel pipe, the shrouding, stop nut, first power transmission nut, second power transmission nut, first stopping nut, second stopping nut, third stopping nut, fourth stopping nut, first connecting bolt, second connecting bolt, third connecting bolt, fourth connecting bolt, fifth connecting bolt and sixth connecting bolt.

The first connecting piece 1 is formed by welding an ear plate 101 and an end plate 102, a round hole 103 is formed in the ear plate 101 and used for pin shaft connection, and bolt holes 104 are uniformly formed in the end plate 102 along the annular direction and used for connecting the first connecting piece and a first outer sleeve.

The first outer sleeve 2 is formed by combining a first flange 201, a first steel pipe 203, a second flange 204, a second steel pipe 206 and a third flange 208, the inner diameter of the first flange 201 is the same as the outer diameter of the first steel pipe 203, the first flange 201 is connected to the left side of the first steel pipe 203 in a welding mode, bolt holes 202 are arranged in the circumferential direction, the number, the size and the positions of the bolt holes 104 arranged on the first connecting piece 1 are completely consistent, the first steel pipe 203 is connected through a first connecting bolt 18, the right side of the first steel pipe 203 is welded to the second flange 204, the length of the first steel pipe is ensured to be not smaller than the supporting limit deformation when the guide shaft 5 moves rightwards (namely supporting tension), and not smaller than the supporting limit deformation when the guide shaft 5 moves leftwards (namely supporting compression), and therefore, the length of the first steel pipe 203 is not smaller than twice of the supporting design limit deformation and the thickness of the limit nut 11 And the inner diameter of the second flange 204 is larger than the diameter of the guide shaft 5 by 1mm-1.5mm, through holes 205 are uniformly formed in the circumferential direction, the left side of the second steel pipe 206 is welded to the second flange 204, the inner diameter and the outer diameter of the second flange are the same as those of the first steel pipe 203, the third flange 207 is in a circular ring shape, the inner diameter and the outer diameter of the second steel pipe 206 are the same, the third flange is welded to the right side of the second steel pipe 206, and bolt holes 208 are uniformly formed in the circumferential direction.

The third outer sleeve 4 is composed of a sixth flange 401, a fourth steel pipe 403, a seventh flange 404 and a fifth steel pipe 406, all dimensions of the sixth flange 401 are completely the same as those of the fourth flange 301, diameters, numbers and positions of bolt holes 402 arranged in the circumferential direction are the same as those of the bolt holes 302, inner and outer diameters of the fourth steel pipe 403 and the fifth steel pipe 405 are the same as those of the first steel pipe 203, the second steel pipe 206 and the third steel pipe 303, all dimensions of the seventh flange 404 are completely the same as those of the second flange 204, and diameters, numbers and positions of the bolt holes 405 arranged in the circumferential direction are the same as those of the bolt holes 205. The fifth steel pipe 406 does not bear external load, the length of the fifth steel pipe is preferably 100mm-200mm, and a threaded hole 407 is formed in one side, away from the seventh flange 404, and is used for mounting the fourth connecting bolt 23.

The guide shaft 5 is made of Q235, Q345, 20#, 45# or 40Cr steel, and is straightened when being processed, the minimum outer diameter of the guide shaft 5 is not less than the calculated value when the guide shaft 5 yields under the action of 1.2 times of support limit load, namely the guide shaft 5 is not subjected to plastic deformation under the action of 1.2 times of support limit load, the length of the guide shaft is not less than the sum of the lengths of the first outer sleeve 2, the second outer sleeve 3 and the third outer sleeve 4 plus the depth of the guide shaft 5 extending into the second connecting piece 6, the left end of the guide shaft is provided with a thread 501 for installing the limit nut 11, the right end of the guide shaft is provided with a thread 507 for connecting with the second connecting piece 6, the middle part of the guide shaft is provided with a thread 503 and a thread 505, the outer diameters of the thread 503 and the thread 505 are less than the inner diameter of the disc spring group 8 by 1mm-2mm, the thread 503 is connected with a first force transmission nut 14 and a first backstop nut 16, the thread 505 is connected with a second force transmission nut 15 and a second backstop nut 17, both for maintaining the initial pre-stress of the disc spring packs 8, said first 14 and second 15 force transmission nuts being of identical dimensions and specifications, the first retaining nut 16 and the second retaining nut 17 have the same size and specification, the first force transmission nut 14, the second force transmission nut 15, the first retaining nut 16 and the second retaining nut 17 have the same inner diameter and thread pitch, a thread section 504 is arranged between the thread 503 and the thread 505, the length of the spring is less than the length of the disc spring set 8 after prepressing, the diameter of the spring is the same as the outer diameter of the thread 503 and the thread 505, between the thread 501 and the thread 503 is a non-threaded section 502, between the thread 505 and the thread 507 is a non-threaded section 506, between the non-threaded section 502 and the non-threaded section 506, the diameters of the two nuts are the same and are smaller than the inner diameters of the first force transmission nut 14, the second force transmission nut 15, the first retaining nut 16 and the second retaining nut 17.

The first cut thick-wall steel pipe 7 is made of LYP100, LYP160, Q235, Q345, Q460, 20#, 45# or aluminum alloy round steel or steel pipes, is a core energy dissipation element, and is characterized in that tensile and compression equal strength can be realized under the action of axial load, the first cut thick-wall steel pipe is used as an energy dissipation element, can be arranged in pairs or independently and comprises a first connecting section 701, an energy dissipation section 702 and a second connecting section 703, the first connecting section 701 is provided with internal threads for fixedly connecting with the guide shaft 5, the second connecting section 703 is provided with external threads for connecting with the first cut thick-wall steel pipe connecting flange 12, the inner diameter of the energy dissipation section 702 is 1mm-2mm larger than the diameter of the guide shaft 5, the guide shaft 5 can play a role in restraining the steel pipe under the action of axial load, lateral instability is prevented, the energy dissipation section 702 is integrally made of a thick-wall steel pipe which is cut perpendicularly to the axial direction thereof to form a cut, the steel plate comprises a notch 704, a notch 705 and a circular ring 706, wherein the notch 704 and the notch 705 are symmetrically arranged, namely, the notch 704 and the notch 705 are not cut through, the notch 704 and the notch 705 are perpendicular to each other, the circular ring 706 is formed between the notch 704 and the notch 705, the circular ring 706 generates plastic deformation under the action of axial load to consume energy, the first power of the radial width and the third power of the axial thickness of the circular ring 706 are in direct proportion to the rigidity of the first notch thick-walled steel pipe 7, the third power of the intermediate diameter is in inverse proportion to the rigidity of the first notch thick-walled steel pipe 7, the number of the circular rings 706 is in inverse proportion to the rigidity of the first notch thick-walled steel pipe 7 and in direct proportion to the deformability of the circular ring, the rigidity, the bearing capacity and the deformability of the first notch thick-walled steel pipe 7 can be flexibly adjusted by changing the intermediate diameter, the axial thickness, the radial width and the number of the circular ring 706, the number of the circular ring can be increased remarkably to increase the deformability, the rigidity and the bearing capacity of the circular ring can be remarkably increased by increasing the axial thickness of the circle, for example, the cut thick-wall steel pipe made of Q235 steel and having the central diameter of 111mm, the radial width of the circular ring of 29mm, the axial thickness of the circular ring of 15mm and the number of the circular rings of 8 has the ultimate bearing capacity of about 160kN and the ultimate deformation of about 80 mm.

The disc spring group 8 is composed of disc springs 26 and gaskets 27, the combination mode of the disc springs 26 is preferably an involution combination mode or a composite combination mode, the gaskets 27 are respectively arranged at the left end and the right end of the disc spring group 8, when the total height of the combined disc springs 26 is larger than 3 times of the outer diameter of the combined disc springs, a gasket is preferably arranged at the middle part, the thickness of the gasket 27 is preferably larger than that of the disc springs 26 by at least 5mm, and the initial pre-pressure of the disc spring group 8 is larger than twice of the sum of the yield loads of the first notch thick-walled steel pipe 7 and the second notch thick-walled steel pipe 9, so that the support has a flag-shaped hysteresis curve, and the residual displacement can be eliminated.

The inner diameter of the energy consumption section and the outer diameter of the connecting section of the second notched thick-walled steel pipe 9 are completely the same as those of the first notched thick-walled steel pipe 7, the material strength, the middle diameter of the ring, the thickness of the ring, the radial width of the ring and the number of the rings can be completely the same as those of the first notched thick-walled steel pipe 7, different parameters can be adopted, the thickness of the ring is increased, so that the second notched thick-walled steel pipe 9 has higher rigidity and bearing capacity, the strength of the third outer sleeve 4 is fully utilized, the force borne by the third outer sleeve 4 in all the outer sleeves is the smallest, the stress of the outer sleeves is reduced from left to right in sequence, the first outer sleeve bears all the forces, including the counter force of the disc spring, the counter force of the first notched thick-walled steel pipe and the counter force of the second notched thick-walled steel pipe, the stress is the largest, and the counter force borne by the second outer sleeve bears the disc spring and the counter force of the second notched thick-walled steel pipe, and the third outer sleeve only bears the reaction force of the second notched thick-walled steel pipe when stressed the second time, and the stress is the minimum.

The outer diameter of the first force transmission nut 14 is smaller than the diameter of the circumcircle of the fourth flange 301, the first force transmission nut is installed on the guide shaft 5 and located on the left side of the disc spring group 8, and the right end of the first force transmission nut is flush with the right end of the fourth flange 301.

The second force transmission nut 15 is the same as the first force transmission nut 14 in size and is symmetrically arranged on the right side of the disc spring group 8.

The first retaining nut 16 is mounted on the left side of the first force transmission nut 14 and used for preventing the first force transmission nut 14 from loosening under the action of load.

And the second stopping nut 17 is arranged on the right side of the second force transmission nut 15 and used for preventing the second force transmission nut 15 from loosening under the action of load.

The second connecting bolt 21 is used for fixing the first outer sleeve 2 and the second outer sleeve 3.

And the third connecting bolt 22 is used for fixing the second outer sleeve 3 and the third outer sleeve 4.

And the fifth connecting bolt 24 is used for fixing the first cut thick-wall steel pipe 7 and the first outer sleeve 2.

The sixth connecting bolt 25 is used for fixing the second cut thick-walled steel pipe 9 and the third outer sleeve 4

The installation and use method comprises the following steps:

1. prepressing the disc spring group 8 to a design prepressing force and keeping the prepressing force through a prepressing force keeping device;

2. marking an installation positioning line of the disc spring group 8 on the guide shaft 5, wherein the distance between the installation positioning line of the disc spring group 8 and the left end of the guide shaft 5 is the sum of the length of the first outer sleeve 2 and the thickness of the fourth flange 301, and then subtracting the limited deformation of the support;

3. penetrating the disc spring group 8 into the guide shaft 5 to enable the left end of the disc spring group 8 to be overlapped with an installation positioning line of the disc spring group, then installing a first force transmission nut 14 and a second force transmission nut 15, and converting the pre-pressure of the disc spring group 8 from the pre-pressure retaining device to the guide shaft 5, the first force transmission nut 14 and the second force transmission nut 15;

4. a first retaining nut 16 and a second retaining nut 17 are respectively arranged at two ends of the guide shaft 5;

5. mounting a third retaining nut 18 and a fourth retaining nut 19;

6. marking installation positioning lines of a first cut thick-walled steel pipe 7 and a second cut thick-walled steel pipe 9 on the guide shaft 5, wherein the distance from the installation positioning line of the first cut thick-walled steel pipe 7 to the left end of the guide shaft 5 is the sum of the thickness of the limit nut 11, the thickness of the second flange 204, the length of the first cut thick-walled steel pipe 7 and the support limit deformation, and the distance from the installation positioning line of the second cut thick-walled steel pipe 9 to the right end of the guide shaft 5 is the sum of the depth of the guide shaft 5 extending into the second connecting piece 6, the support limit deformation, the thickness of the sealing plate 10, the length of the fifth steel pipe 406 and the thickness of the seventh flange 404;

7. screwing the first notched thick-walled steel pipe 7 from the left end of the guide shaft 5 so that the left end thereof coincides with the mounting positioning line of the first notched thick-walled steel pipe 7, and screwing the second notched thick-walled steel pipe 9 from the right end of the guide shaft so that the right end thereof coincides with the mounting positioning line of the second notched thick-walled steel pipe 9;

8. screwing and locking a third retaining nut 18 and a fourth retaining nut 19 to the right end of the first notched thick-walled steel pipe 7 and the left end of the second notched thick-walled steel pipe 9 respectively;

9. a first notched thick-walled steel pipe connection flange 12 is attached to the left end of the first notched thick-walled steel pipe 7, and a second notched thick-walled steel pipe connection flange 13 is attached to the right end of the second notched thick-walled steel pipe 9;

10. the second outer sleeve 3 is sleeved from the left end of the guide shaft 5 until the fourth flange 301 is contacted with the disc spring group 8;

11. the third outer sleeve 4 is sleeved from the right end of the guide shaft, and then a third connecting bolt 22 is fastened;

12. sleeving the first outer sleeve 2 from the left end of the guide shaft 5, and fastening a second connecting bolt 21;

13. the sixth connecting bolt 25 is inserted through the bolt hole 405 and screwed into the second cut thick-walled steel pipe connecting flange 13 for fixation, and the fifth connecting bolt 24 is inserted through the through hole 205 and screwed into the threaded hole 1202 of the first cut thick-walled steel pipe connecting flange 12 for fixation;

14. installing a limit nut 11;

15. sheathing the sealing plate 10 from the right end of the guide shaft 5 to align with the hole site, and installing a fourth connecting bolt 23;

16. installing the first connecting piece 1, fastening the first connecting bolt 20, and screwing the second connecting piece 6 from the right end of the guide shaft 5;

17. after a large earthquake, only energy consumption components in the self-resetting support can be replaced without replacing the self-resetting support integrally, the replacement method is that the self-resetting support is firstly detached from a building installation part, then the self-resetting support is detached according to a sequence opposite to the assembly sequence of the self-resetting support, the first cut thick-wall steel pipe 7 and the second cut thick-wall steel pipe 9 are replaced, and then the self-resetting support can be reassembled, so that the use function of the self-resetting support can be recovered.

Furthermore, it is also to be noted that: the reset system and the energy consumption system are combined into one, the damper is simplified in structure, and the length is reduced; the disk spring system is always pressed, and the tension and the pressure of the damper are equal; the detachable and replaceable friction plate has the advantages that only the friction plate needs to be replaced after an earthquake, the material is saved, the maintenance speed is high, and the reuse can be realized.

Claims

1. A replaceable component type energy dissipation support is characterized by comprising a first connecting piece (1), a first outer sleeve (2), a guide shaft (5), a second connecting piece (6), a first cut thick-wall steel pipe (7), a sealing plate (10), a limiting nut (11), a first cut thick-wall steel pipe connecting flange (12), a third stopping nut (18), a first connecting bolt (20) and a fifth connecting bolt (24); one end of the first outer sleeve (2) is connected with a first connecting piece (1);

a fixed connecting disc is arranged in the first outer sleeve (2), penetrates through the guide shaft (5) and is connected with the guide shaft (5) through a first cut thick-wall steel pipe connecting flange (12), a second connecting piece (6) is arranged at one end of the guide shaft (5), a connecting limiting nut (11) is arranged at the other end of the guide shaft (5), and the limiting nut (11) is blocked at one side of the fixed connecting disc; a first cut thick-wall steel pipe (7) is sleeved on the guide shaft (5), one end of the first cut thick-wall steel pipe (7) is clamped and blocked at the other side of the fixed connecting disc, and the other end of the first cut thick-wall steel pipe (7) is clamped and blocked through a third retaining nut (18).

2. A replaceable component type self-resetting support is characterized by comprising the replaceable component type energy dissipation support as claimed in claim 1, and further comprising a second outer sleeve (3), wherein a fixed connecting disc is arranged in the second outer sleeve (3), the second outer sleeve (3) is spliced with the first outer sleeve (2), a guide shaft (5) penetrates through the second outer sleeve (3), a disc spring (26) or a disc spring group (8) is sleeved on the guide shaft (5), and two ends of the disc spring (26) or the disc spring group (8) are respectively clamped between the fixed connecting discs of the adjacent sleeves.

3. Self-restoring support according to claim 2, characterized in that the disk spring (26) or the set of disk springs (8) is provided on both sides with a first cut-out thick-walled steel tube (7) and a second cut-out thick-walled steel tube (9).

4. The self-resetting support of replaceable component type according to claim 3, wherein the first cut thick-walled steel tube (7) and the second cut thick-walled steel tube (9) are provided with a plurality of sets of cuts in a staggered manner; the first cut thick-wall steel pipe (7) or the second cut thick-wall steel pipe (9) is divided into a first connecting section (701), an energy consumption section (702) and a second connecting section (703), the first connecting section (701) is provided with internal threads and is used for being fixedly connected with the guide shaft (5), the second connecting section (703) is provided with external threads and is used for being connected with the first cut thick-wall steel pipe connecting flange (12), the energy consumption section (702) is larger than the guide shaft (5) in diameter by 1-2 mm, and the length of the second cut thick-wall steel pipe (9) is larger than or equal to that of the first cut thick-wall steel pipe (7).

5. The self-resetting support of replaceable component type according to claim 2, wherein the guide shaft (5) is provided with a left end thread (501) at the left end for installing the limit nut (11), a right end thread (507) at the right end for connecting with the second connector (6), a left thread (503) and a right thread (505) at the middle part, the left thread (503) is used for installing the first cut thick-wall steel pipe (7) and the third retaining nut (18), the right thread (505) is used for installing the second cut thick-wall steel pipe (9) and the fourth retaining nut (19), the third retaining nut (18) and the fourth retaining nut (19) have the same specification and size, a thread-free section (504) is arranged between the left thread (503) and the right thread (505), and a thread-free section (502) is arranged between the left end thread (501) and the left thread (503), a right-end unthreaded section (506) is arranged between the right thread (505) and the right-end thread (507); the first connecting piece (1) is formed by welding an ear plate (101) and an end plate (102), a round hole (103) is formed in the ear plate (101) and used for pin shaft connection, and bolt holes (104) are uniformly formed in the end plate (102) along the circumferential direction and used for connecting the first connecting piece and a first outer sleeve; second connecting piece (6) is formed by connector (601) and otic placode (603) welding, threaded hole (602) is opened at connector (601) middle part, threaded hole (602) 6 and right-hand member screw thread (507) supporting connection, otic placode (603) middle part is equipped with round hole (604) for round pin hub connection, its diameter is the same with round hole (103).

6. The self-resetting support of claim 2, wherein the first outer sleeve (2) is formed by combining a first flange (201), a first steel pipe (203), a second flange (204), a second steel pipe (206) and a third flange (207), the inner diameter of the first flange (201) is the same as the outer diameter of the first steel pipe (203), the first flange is fixedly connected to the left side of the first steel pipe (203) and is circumferentially provided with bolt holes (202), the bolt holes (202) correspond to the bolt holes (104) formed in the first connecting member (1) and are connected through first connecting bolts (20), the right side of the first steel pipe (203) is fixedly connected to the second flange (204), the second flange (204) is uniformly provided with through holes (205) along a central matrix, the left side of the second steel pipe (206) is fixedly connected to the second flange (204), and the inner diameter and the outer diameter of the second steel pipe (206) are the same as the first steel pipe (203), the third flange (207) is annular, the inner diameter of the third flange is the same as the outer diameter of the second steel pipe (206), the third flange is connected to the right side of the second steel pipe (206) in a welding mode, and bolt holes (208) are uniformly formed in the third flange along the annular direction;

the third outer sleeve (4) is composed of a sixth flange (401), a fourth steel pipe (403), a seventh flange (404) and a fifth steel pipe (406), the inner diameter of the sixth flange (401) is the same as the outer diameter of the fourth steel pipe (403), bolt holes (402) are uniformly formed in the circumferential direction, the bolt holes (402) correspond to the bolt holes (208), the inner diameter and the outer diameter of the fourth steel pipe (403) and the inner diameter of the fifth steel pipe (406) are the same as those of the first steel pipe (203) and the second steel pipe (206), the size of the seventh flange (404) is the same as those of the second flange (204), and the diameter, the number and the position of the bolt holes (405) formed in the circumferential direction are the same as those of the bolt holes (205); the length of the fifth steel pipe (406) is preferably 100mm-200mm, and a threaded hole (407) is formed in one side, away from the seventh flange (404), and is used for mounting a fourth connecting bolt (23).

7. The self-restoring support of replaceable component type according to claim 2, wherein the closing plate (10) comprises a central circular hole (1001) and bolt holes (1002) arranged along a circumferential direction, the right end of the third outer sleeve (4) is blocked, the bolt holes (1002) are uniformly arranged along a circumferential direction and are used for installing the fourth connecting bolts (23); the device also comprises a limit nut (11), wherein the limit nut (11) is positioned at the left end of the guide shaft (5);

the first cut thick-wall steel pipe connecting flange (12) comprises internal threaded holes (1201) and threaded holes (1202) which are uniformly distributed in the circumferential direction, the internal threaded holes (1201) are in threaded connection with the second connecting section (703) of the first cut thick-wall steel pipe, and the threaded holes (1202) are used for connecting the first cut thick-wall steel pipe connecting flange (12) and the first outer sleeve (2) together through fifth connecting bolts (24);

the second cut thick-wall steel pipe connecting flange (13) is the same as the first cut thick-wall steel pipe connecting flange (12) in size; the third retaining nut (18) is mounted on the right side of the first notched thick-walled steel pipe (7), and the fourth retaining nut (19) is mounted on the left side of the second notched thick-walled steel pipe (9);

the first connecting bolt (20) is used for fixing the first connecting piece (1) and the first outer sleeve (2), and the second connecting bolt (21) is used for fixing the first outer sleeve (2) and the second outer sleeve (3) or the third outer sleeve (4); the fourth connecting bolt (23) is used for fixing the sealing plate (10) and the third outer sleeve (4); the fifth connecting bolt (24) is used for fixing the first cut thick-wall steel pipe connecting flange (12) and the first outer sleeve (2); and the sixth connecting bolt (25) is used for fixing the second notched thick-walled steel pipe connecting flange (13) and the third outer sleeve (4).

8. A self-resetting support of the replaceable part type according to claim 2, characterised in that the first (2) and third (4) outer sleeves are provided with closure plates (10).

9. The method for using the replaceable component type energy dissipation brace as recited in claim 1, comprising the steps of

S1, screwing the third stopping nut (18) and the fourth stopping nut (19) into the middle part of the guide shaft (5) from the left end and the right end respectively;

s2, marking installation positioning lines of a first cut thick-wall steel pipe (7) and a second cut thick-wall steel pipe (9) on the guide shaft (5), wherein the distance from the installation positioning line of the first cut thick-wall steel pipe (7) to the left end of the guide shaft (5) is the sum of the thickness of a limiting nut (11), the thickness of a second flange (204), the length of the first cut thick-wall steel pipe (7) and the support limit deformation, and the distance from the installation positioning line of the second cut thick-wall steel pipe (9) to the right end of the guide shaft (5) is the sum of the depth of the guide shaft (5) extending into a second connecting piece (6), the support limit deformation, the thickness of a sealing plate (10), the length of a fifth steel pipe (406) and the thickness of a seventh flange (404);

s3, screwing the first cut thick-walled steel pipe (7) from the left end of the guide shaft (5) to enable the left end of the first cut thick-walled steel pipe to be overlapped with the installation positioning line of the first cut thick-walled steel pipe (7), screwing the second cut thick-walled steel pipe (9) from the right end of the guide shaft to enable the right end of the second cut thick-walled steel pipe to be overlapped with the installation positioning line of the second cut thick-walled steel pipe (9);

s4, screwing a third retaining nut (18) and a fourth retaining nut (19) to the right end of the first cut thick-walled steel pipe (7) and the left end of the second cut thick-walled steel pipe (9) respectively and locking;

s5, mounting a first cut thick-wall steel pipe connecting flange (12) and a second cut thick-wall steel pipe connecting flange (13);

s6, sleeving the first outer sleeve (2) from the left end of the guide shaft, enabling the right end of the second flange (204) to be in contact with the left end of the first cut thick-wall steel pipe connecting flange (12), and installing a fifth connecting bolt (24);

s7, mounting a limit nut (11);

s8, sleeving the third outer sleeve (4) from the right end of the guide shaft (5), and installing a second connecting bolt (21);

s9, mounting a sixth connecting bolt (25);

s10, sleeving the sealing plate (10) from the right end of the guide shaft (5), and installing a fourth connecting bolt (23);

s11, mounting a first connecting piece (1) and a second connecting piece (6);

and S12, only energy consumption components in the novel energy consumption support are replaced without integral replacement, and the replacement method is that the energy consumption support is firstly disassembled, then the energy consumption support is disassembled according to the sequence opposite to the assembly of the energy consumption support, and the first cut thick-wall steel pipe (67) and the second cut thick-wall steel pipe (9) are replaced and then are reassembled.

10. The method of using a self-restoring support of the replaceable component type according to claim 2, comprising the steps of

S1, pre-pressing the disc spring (26) or the disc spring group (8) to a design pre-pressing force and keeping the pre-pressing force through a pre-pressing force keeping device;

s2, marking an installation positioning line of the disc spring group (8) on the guide shaft (5), wherein the distance between the installation positioning line of the disc spring group (8) and the left end of the guide shaft (5) is the sum of the length of the first outer sleeve (2) and the thickness of the fourth flange (301) and then subtracting the limited deformation of the support;

s3, penetrating the disc spring group (8) into the guide shaft (5), enabling the left end of the disc spring group (8) to be overlapped with an installation positioning line of the disc spring group, then installing a first force transmission nut (14) and a second force transmission nut (15), and converting the pre-pressure of the disc spring group (8) from the pre-pressure holding device to the guide shaft (5), the first force transmission nut (14) and the second force transmission nut (15);

s4, mounting a first retaining nut (16) and a second retaining nut (17) from two ends of the guide shaft (5) respectively;

s5, mounting a third stopping nut (18) and a fourth stopping nut (19);

s6, marking installation positioning lines of a first cut thick-wall steel pipe (7) and a second cut thick-wall steel pipe (9) on the guide shaft (5), wherein the distance from the installation positioning line of the first cut thick-wall steel pipe (7) to the left end of the guide shaft (5) is the sum of the thickness of a limiting nut (11), the thickness of a second flange (204), the length of the first cut thick-wall steel pipe (7) and the support limit deformation, and the distance from the installation positioning line of the second cut thick-wall steel pipe (9) to the right end of the guide shaft (5) is the sum of the depth of the guide shaft (5) extending into a second connecting piece (6), the support limit deformation, the thickness of a sealing plate (10), the length of a fifth steel pipe (406) and the thickness of a seventh flange (404);

s7, screwing the first cut thick-walled steel pipe (7) from the left end of the guide shaft (5) to make the left end coincide with the installation positioning line of the first cut thick-walled steel pipe (7), and screwing the second cut thick-walled steel pipe (9) from the right end of the guide shaft to make the right end coincide with the installation positioning line of the second cut thick-walled steel pipe (9);

s8, screwing a third retaining nut (18) and a fourth retaining nut (19) to the right end of the first cut thick-walled steel pipe (7) and the left end of the second cut thick-walled steel pipe (9) respectively and locking;

s9, mounting the first notched thick-walled steel pipe connection flange (12) on the left end of the first notched thick-walled steel pipe (7), and mounting the second notched thick-walled steel pipe connection flange (13) on the right end of the second notched thick-walled steel pipe (9);

s10, sleeving the second outer sleeve (3) from the left end of the guide shaft (5) until the fourth flange (301) is contacted with the disc spring group (8);

s11, sleeving a third outer sleeve (4) from the right end of the guide shaft, and then fastening a third connecting bolt (22);

s12, sleeving the first outer sleeve (2) from the left end of the guide shaft (5) and fastening a second connecting bolt (21);

s13, a sixth connecting bolt (25) penetrates through the bolt hole (405) and is screwed into the second cut thick-wall steel pipe connecting flange (13) for fixing, and a fifth connecting bolt (24) penetrates through the through hole (205) and is screwed into the threaded hole (1202) of the first cut thick-wall steel pipe connecting flange (12) for fixing;

s14, mounting a limit nut (11);

s15, sleeving a sealing plate (10) from the right end of the guide shaft (5) and aligning the sealing plate with a hole site, and installing a fourth connecting bolt (23);

s16, mounting the first connecting piece (1), fastening the first connecting bolt (20), and screwing the second connecting piece (6) into the guide shaft (5) from the right end;

s17, when replacing and maintaining, only energy consumption components in the self-resetting support are replaced without replacing the self-resetting support integrally, the replacement method is that the self-resetting support is firstly detached from a building or a bridge structure, then the self-resetting support is detached according to the sequence opposite to the assembly sequence of the self-resetting support, and the first cut thick-wall steel pipe (7) and the second cut thick-wall steel pipe (9) are replaced and then are reassembled.