CN110145045B - Limiting energy dissipation structure and construction method thereof - Google Patents
Limiting energy dissipation structure and construction method thereof Download PDFInfo
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- CN110145045B CN110145045B CN201910448456.7A CN201910448456A CN110145045B CN 110145045 B CN110145045 B CN 110145045B CN 201910448456 A CN201910448456 A CN 201910448456A CN 110145045 B CN110145045 B CN 110145045B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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Abstract
The invention discloses a limiting energy dissipation structure and a construction method thereof.A plurality of energy dissipation sheets uniformly distributed in annular cavities of an inner cylinder and an outer cylinder are arranged between the inner cylinder and the outer cylinder of the limiting energy dissipation structure, the outer cylinder is fixed on a cross beam through a first connecting steel plate, two limiting plates are welded on the outer wall of the outer cylinder, two limiting holes are respectively formed in the two limiting plates, the two limiting holes are arranged in the axial direction of the outer cylinder, and the inner cylinder is fixed on an upright post through a second connecting steel plate; the driving chain comprises three sections of first chains and two sections of second chains, and the limiting holes are holes through which the first chains cannot pass and the second chains can pass; the two sections of second chains respectively penetrate through one limiting hole of the two limiting plates. The invention can increase the stability of the structure, improve the anti-deformation capability of the structure, and reduce the damage of the earthquake to the structure.
Description
Technical Field
The invention relates to the technical field of building earthquake prevention, in particular to a limiting energy consumption structure and a construction method thereof.
Background
China is a country with multiple earthquakes, and particularly in recent years, human activities are added, so that earthquakes in China occur more frequently. Therefore, structural damage is also increasing in earthquakes. People can not control the occurrence of the earthquake, so that how to reduce the damage of the structure in the earthquake is very important. The energy generated in the earthquake process is not released all at once, and is released outwards one by one. Thus, the damage to the structure from an earthquake is continuous, and the connection between the ordinary structures can only resist the energy released by one earthquake but cannot bear the residual energy of the earthquake. Therefore, it is important to improve the connection between the structures to continuously resist the energy released by the earthquake.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the invention provides a limiting energy dissipation structure with good anti-seismic performance and a construction method of the limiting energy dissipation structure.
In order to solve the technical problem, the limiting energy consumption structure comprises an upright post and a cross beam, wherein a limiting energy consumption device is arranged at an included angle between the upright post and the cross beam, the limiting energy consumption device comprises a roller and a driving chain, a fixed pulley is arranged at a position, higher than the roller, on the upright post, a fixed shaft is fixed on the cross beam, the fixed shaft and the upright post are respectively arranged at two sides of the roller, a torsion spring is sleeved on the fixed shaft, the roller comprises an inner cylinder and an outer cylinder, a plurality of energy consumption pieces which are uniformly distributed in annular cavities of the inner cylinder and the outer cylinder are arranged between the inner cylinder and the outer cylinder, one end of each energy consumption piece is welded with the outer wall of the inner cylinder; the outer barrel is fixed on the cross beam through a first connecting steel plate, two limiting plates are welded on the outer wall of the outer barrel, the included angle between the two limiting plates is 90 degrees, one limiting plate is horizontally welded on one side, away from the stand column, of the outer barrel, the other limiting plate is vertically welded on the outer barrel on one side, away from the cross beam, two limiting holes are formed in each of the two limiting plates and are arranged in the axis direction of the outer barrel, the axis of each limiting hole is perpendicular to the axis of the outer barrel, and the inner barrel is fixed on the stand column through a second connecting steel plate; the driving chain comprises three sections of first chains and two sections of second chains, the three sections of first chains and the two sections of second chains are connected to form a line section chain, all the first chains are spaced, all the second chains are spaced, and the limiting holes are holes through which the first chains cannot pass and the second chains can pass; the end point of the first section of first chain is welded on the cross beam, the two sections of second chains respectively penetrate through one limiting hole of the two limiting plates, the second section of first chain is hung on the fixed pulley, the two ends of the torsion spring are respectively fixedly connected with the fixed shaft and the tail end of the third section of first chain, when the stand column and the cross beam are in a natural state, the driving chain is in a completely extended state, and the torsion spring is in a natural state.
In order to protect the roller, the distance between one end of the third section of first chain far away from the fixed shaft and one end of the second section of first chain far away from the fixed shaft is equal to the nearest limit plate, and the distance is 2-5 mm. The distance between the driving chain and the limiting plate is set, so that the roller can be started to consume energy when the beam and the column deform to a certain extent, and the energy consumption function of the roller can be protected as far as possible.
In order to facilitate the installation of the inner cylinder, the outer cylinder is provided with a rotating groove, when the stand column and the cross beam are in a natural state, the second connecting steel plate is positioned in the middle of the rotating groove, and when the outer cylinder rotates relative to the inner cylinder, the rotating groove is provided with a moving space of the second connecting steel plate.
In order to facilitate the rotation of the outer cylinder, the first connecting steel plate and the second connecting steel plate are made of mild steel.
In order to facilitate maintenance of the limiting energy consumption device, a fixed box is covered on the outer side of the fixed pulley and is fixed on the stand column through a pre-buried bolt; the outer side of the fixed shaft is covered with a movable box which is fixed on the cross beam through embedded bolts.
In order to reduce friction between the driving chain and the outer wall of the outer barrel, a sliding limiting guide rail is welded between the two limiting plates on the outer barrel, and the two sections of second chains are connected with the sliding limiting guide rail in a sliding mode.
The construction method of the limiting energy dissipation structure comprises the following steps:
(1) mounting a roller, welding the roller welded with two limiting plates, a first connecting steel plate and a second connecting steel plate at an included angle between a cross beam and an upright post, mounting a fixed pulley and a fixed box on the upright post, and mounting a fixed shaft and a movable box on the cross beam;
(2) the driving chain is installed by using a limit adjusting ruler, the initial length of a first section of first chain and the initial length of a third section of first chain are both longer than the actually required length, the other chains are set lengths, the limit adjusting ruler comprises a clamp and an adjusting plate, the clamp is C-shaped, the clamp comprises two first transverse plates and side plates, the two first transverse plates are parallel, two ends of each side plate are respectively connected with the two first transverse plates, bolt holes are respectively formed in one first transverse plate and the side plates, the adjusting plate is an L-shaped plate and comprises a vertical plate and a second transverse plate, a long hole is formed in the vertical plate, a U-shaped adjusting groove is formed in the second transverse plate, the U-shaped adjusting groove is a groove through which the first chain cannot pass and the second chain can pass, the long hole in the vertical plate is connected with the bolt holes in the side plates through adjusting bolts, and a positioning pin rotatably connected with the adjusting bolts is arranged, a vertical plate of the adjusting plate is provided with a scale; respectively penetrating the second chain through two limiting holes on the sliding limiting guide rail and the two limiting plates, hanging the second section of the first chain on the fixed pulley, sleeving the torsion spring on the fixed shaft, and welding one end of the torsion spring on the fixed shaft; inserting a clamp into a limiting plate parallel to a cross beam, positioning the limiting plate between two first transverse plates, taking a locking bolt, screwing the locking bolt into a bolt hole on the first transverse plates to fix the clamp on the limiting plate parallel to the cross beam, loosening an adjusting bolt to enable a vertical plate to be in an active state, adjusting a positioning needle to be horizontal, adjusting the position of the vertical plate to enable the distance from the bottom surface of a second transverse plate to the bottom surface of the limiting plate parallel to the cross beam to reach a set distance, screwing the adjusting bolt, pushing a second chain below the limiting plate parallel to the cross beam into a U-shaped adjusting groove, pulling the head end of a first section of first chain until a third section of first chain is propped against the U-shaped adjusting groove until a driving chain cannot be pulled, welding one end of the third section of first chain, far away from the second chain, with the other end of a torsional spring, enabling the third section of first chain to be in a completely extended state, and welding one end of the first section of the first chain, which is far away from the second chain, with the cross beam, so that the driving chain is in a completely extended state, cutting off the redundant parts of the third section of the first chain and the first section of the first chain, loosening the locking bolt on the first transverse plate, and detaching the limiting adjusting ruler from the limiting plate.
The invention has the beneficial effects that: the limiting energy dissipation structure can well consume energy released by an earthquake at one time, can continuously absorb residual energy of the earthquake, reduces damage of the earthquake to the cross beam and the upright post, increases the stability of the structure of the cross beam and the upright post, and improves the deformation resistance of the cross beam and the upright post; the driving chain is installed by adopting the specially designed limit adjusting ruler, so that the distance from the end point of the second chain to the limit plate can be accurately controlled; the invention has simple structure, convenient construction and high cost performance.
Drawings
Fig. 1 is a schematic structural diagram of a limiting energy dissipation structure according to a first embodiment of the present invention;
FIG. 2 is an enlarged schematic view of a drum according to a first embodiment of the present invention;
FIG. 3 is an enlarged view of the sliding chute according to the first embodiment of the present invention;
FIG. 4 is an enlarged schematic view of the structure of the two ends of the torsion spring according to the first embodiment of the present invention
Fig. 5 is a schematic front view of a limit adjusting ruler according to a first embodiment of the invention;
FIG. 6 is an enlarged view of the structure of the riser of the spacing adjustment plate according to the first embodiment of the present invention;
fig. 7 is an enlarged schematic structural view of a second transverse plate on the limit adjustment plate according to the first embodiment of the invention;
FIG. 8 is an enlarged schematic view of a drum according to a second embodiment of the present invention;
1-upright column; 2-a cross beam; 3-a roller; 4-a drive chain; 5-1-a first strand of first chain; 5-2-a second section of the first chain; 5-3-a third section of first chain; 6-1-a first section of second chain; 6-2-a second section of second chain; 7-a second connecting steel plate; 8-a first connecting steel plate; 9-energy dissipation piece; 10-an outer cylinder; 11-an inner cylinder; 12-a limiting plate; 13-sliding limit guide rails; 14-a fixed pulley; 15-a stationary box; 16-a fixed shaft; 17-a movable box; 18-a limiting hole; 19-a rotating groove; 20-torsion spring; 21-a clamp; 22-an adjusting plate; 23-a first transverse plate; 24-side plate; 25-a second transverse plate; 26-a riser; 27-elongated holes; 28-scale; 29-a positioning pin; 30-U-shaped adjusting holes.
Detailed Description
Example one
As shown in fig. 1, a limiting energy dissipation structure comprises an upright post 1 and a cross beam 2, wherein a limiting energy dissipation device is arranged at an included angle between the upright post 1 and the cross beam 2, the limiting energy dissipation device comprises a roller 3 and a driving chain 4, a fixed pulley 14 is arranged on the upright post 1 at a position higher than the roller, a fixed box 15 is covered on the outer side of the fixed pulley 14, and the fixed box 15 is fixed on the upright post 1 through an embedded bolt; the fixed shaft 16 is fixed on the cross beam 2, the fixed shaft 16 and the upright post 1 are respectively arranged on two sides of the roller, the torsion spring 20 is sleeved on the fixed shaft 16, the outer side of the fixed shaft 16 is covered with the movable box 17, and the movable box 17 is fixed on the cross beam 2 through embedded bolts.
The roller comprises an inner cylinder 11 and an outer cylinder 10, a plurality of energy dissipation pieces 9 uniformly distributed in annular cavities of the inner cylinder and the outer cylinder are arranged between the inner cylinder 11 and the outer cylinder 10, one end of each energy dissipation piece 9 is welded with the outer wall of the inner cylinder 11, the other end of each energy dissipation piece 9 is welded with the inner wall of the outer cylinder 10, and the middle of each energy dissipation piece 9 is narrower than the two ends; the outer barrel 10 is fixed on the cross beam 2 through a first connecting steel plate 8, two limiting plates 12 are welded on the outer wall of the outer barrel 10, the included angle between the two limiting plates 12 is 90 degrees, one limiting plate 12 is horizontally welded on one side, away from the stand column 1, of the outer barrel 10, the other limiting plate 12 is vertically welded on one side, away from the cross beam 2, of the outer barrel 10, two limiting holes 18 are formed in each of the two limiting plates 12, the axes of the limiting holes 18 are perpendicular to the axis of the outer barrel 10, the two limiting holes 18 in each limiting plate 12 are arranged in the radial direction of the outer barrel 10, a sliding limiting guide rail 13 is welded between the two limiting plates 12 on the outer barrel 10, and two sections of second chains are both connected with the sliding limiting guide; the inner cylinder 11 is fixed on the upright post 1 through a second connecting steel plate 7; the first connecting steel plate and the second connecting steel plate are made of mild steel; as shown in fig. 3, the outer cylinder 10 is provided with a rotating groove 19, when the upright post 1 and the cross beam 2 are in a natural state, the second connecting steel plate 7 is positioned in the middle of the rotating groove 19, and when the inner cylinder 11 and the outer cylinder 10 rotate, the rotating groove 19 has a space for the second connecting steel plate 7 to move.
As shown in fig. 1, the driving chain 4 includes three sections of first chains and two sections of second chains, the three sections of first chains and the two sections of second chains are connected to form a line section chain, all the first chains are spaced apart, all the second chains are spaced apart, and the limiting holes 18 are holes through which the first chains cannot pass and the second chains can pass; the end point of the first section of the first chain 5-1 is welded on the cross beam 2, the first section of the second chain 6-1 passes through the limiting holes 18 far away from the roller on the two limiting plates 12, the second section of the first chain 5-2 is hung on the fixed pulley 14, and the second section of the second chain 6-2 passes through the limiting holes 18 close to the roller on the two limiting plates 12; as shown in fig. 4, two ends of the torsion spring 20 are respectively fixedly connected with the fixed shaft 16 and the tail ends of the third-stage first chains 5-3, when the upright post 1 and the cross beam 2 are in a natural state, the driving chain 4 is in a fully extended state, and the torsion spring 20 is in a natural state.
The distance between one end of the third section of first chain 5-3 far away from the fixed shaft 16 and one end of the second section of first chain 5-2 far away from the fixed shaft 16 and the nearest limit plate 12 is equal, and the distance is 2-5 mm.
The vertical column and the cross beam are in a natural state: the state when the column 1 and the beam 2 are not deformed.
The drive chain is in a fully extended state: the drive chain 4 is in a non-relaxed, stretched state.
The torsion spring is in a natural state: both ends of the torsion spring 20 are not under tension.
In order to understand the use of the limit dissipative structure more clearly, the invention provides a construction method of the limit dissipative structure, which is mainly characterized in that a limit adjusting ruler is used for determining the actually required length of the driving chain 4 and determining the distance between the connecting end of the first chain and the second chain and the limit plate 12 when the upright column 1 and the cross beam 2 are in a natural state, and the construction method specifically comprises the following steps:
(1) installing a roller, welding the roller welded with two limiting plates 12, a first connecting steel plate 8 and a second connecting steel plate 7 at the included angle between the beam 2 and the upright post 1, installing a fixed pulley 14 and a fixed box 15 on the upright post 1, and installing a fixed shaft 16 and a movable box 17 on the beam 2;
(2) a limit adjusting ruler is used for installing a driving chain 4, the initial length of the driving chain 4 is longer than the actually required length, and other chains are set; as shown in fig. 5, the limiting and adjusting ruler comprises a clamp 21 and an adjusting plate 22, the clamp 21 is C-shaped, the clamp comprises two first transverse plates 23 and side plates 24, the two first transverse plates 23 are parallel, and one of the first transverse plates 23 and one of the side plates 24 are respectively provided with a bolt hole; the adjusting plate 22 is an L-shaped plate, the adjusting plate comprises a vertical plate 26 and a second transverse plate 25, as shown in fig. 6, a long hole 27 is formed in the vertical plate 26, as shown in fig. 7, a U-shaped adjusting groove 30 is formed in the second transverse plate 25, the U-shaped adjusting groove 30 is a groove through which a first chain cannot pass and a second chain can pass, the vertical plate 26 is connected with the side plate 24 through an adjusting bolt, the adjusting bolt passes through the long hole 27 in the vertical plate 26 and a bolt hole in the side plate 24, a positioning pin 29 rotatably connected with the adjusting bolt is arranged on the adjusting bolt, and a scale 28 is arranged on the vertical plate 26 of the adjusting plate 22; respectively penetrating the second chain through two limiting holes 18 on a sliding limiting guide rail 13 and two limiting plates 12, hanging the second section of the first chain 5-2 on a fixed pulley 14, sleeving a torsion spring 20 on a fixed shaft 16, and welding one end of the torsion spring 20 on the fixed shaft 16; inserting the clamp into a limiting plate 12 parallel to the cross beam, wherein the limiting plate 12 is positioned between two first transverse plates 23, taking a locking bolt, screwing the locking bolt into a bolt hole on the first transverse plates 23 to fix the clamp on the limiting plate 12 parallel to the cross beam, loosening an adjusting bolt to enable a vertical plate 26 to be in a movable state, adjusting a positioning needle 29 to be horizontal, moving the vertical plate 26 to enable the distance from the bottom surface of a second transverse plate 25 to the bottom surface of the limiting plate 12 parallel to the cross beam to reach a set distance, screwing the adjusting bolt, pushing a second chain below the limiting plate 12 parallel to the cross beam into a U-shaped adjusting groove 30, pulling the head end of a first section of a first chain 5-1 until a third section of the first chain 5-3 is propped against the bottom surface of the U-shaped adjusting groove 30 until a driving chain 4 cannot be pulled, welding one end of the third section of the first chain 5-3, which is far away from the second chain, with the, and (3) enabling the third section of the first chain 5-3 to be in a completely extended state, enabling the torsion spring 20 to be in a natural state, welding one end, far away from the second chain, of the first section of the first chain 5-1 with the cross beam 2, enabling the driving chain 4 to be in a completely extended state, enabling the completely extended state not to contain redundant driving chain 4, cutting off redundant parts of the first section of the first chain 5-1 and the third section of the first chain 5-3, loosening the locking bolt on the first transverse plate 23, and detaching the limiting adjusting ruler from the limiting plate 12 parallel to the cross beam.
Example two
As shown in fig. 8, a difference between the present embodiment and the first embodiment is that two limiting plates 12 are welded on the outer wall of the outer cylinder 10, an included angle between the two limiting plates 12 is 90 degrees, one of the two limiting plates 12 is horizontally welded on one side of the outer cylinder 10 away from the stand column 1, the other one of the two limiting plates 12 is vertically welded on one side of the outer cylinder 10 away from the cross beam 2, two limiting holes 18 are respectively formed in the two limiting plates 12, the two limiting holes 18 are arranged in the axial direction of the outer cylinder 10, the axial line of the limiting hole 18 is parallel to the axial line of the outer cylinder 10, and the two segments of second chains respectively pass through one limiting.
The sliding limit rail 13 in the aforementioned embodiment may be a multi-layered retainer provided with balls or rollers, the retainer being fixed to the outer cylinder 10, and a second chain passing through the middle of the two layers of balls or rollers.
The working principle of the limiting energy consumption structure is as follows: the limiting energy dissipation device is arranged at the included angle between the two sides of the upright post 1 and the cross beam 2. When an earthquake occurs, when an included angle between the upright post 1 and the cross beam 2 is enlarged, the torsion spring 20 is stretched, the driving chain 4 is lengthened, the fixed pulley 14 enables the driving chain 4 to rotate, the connecting end of the first chain and the second chain of the driving chain 4 is continuously close to the limiting plate 12, when the driving chain reaches the limiting plate 12, the limiting plate 12 is pulled by the driving chain 4 because the first chain cannot pass through the limiting hole 18, the outer cylinder 10 is driven to rotate through the limiting plate 12, because the inner cylinder 11 is fixed on the upright post 1 through the second connecting steel plate 7, relative rotation occurs between the outer cylinder 10 and the inner cylinder 11, and the energy dissipation sheet 9 between the outer cylinder 10 and the inner cylinder 11 is broken, so the energy dissipation sheet 9 absorbs and consumes energy released by the earthquake, and when the rotating amplitude of the outer cylinder 10 is larger, the first connecting steel plate 8 and the second connecting steel plate 7 deform or. After the earthquake is finished, the damaged limiting energy consumption device can be detached at the joint, and a new limiting energy consumption device is installed.
Claims (7)
1. The utility model provides a spacing power consumption structure, includes stand and crossbeam, is provided with spacing power consumption device, its characterized in that in the contained angle department of stand and crossbeam: the limiting energy dissipation device comprises a roller and a driving chain, a fixed pulley is arranged on the position, higher than the roller, of an upright post, a fixed shaft is fixed on a cross beam, the fixed shaft and the upright post are respectively arranged on two sides of the roller, a torsion spring is sleeved on the fixed shaft, the roller comprises an inner cylinder and an outer cylinder, a plurality of energy dissipation pieces which are uniformly distributed in annular cavities of the inner cylinder and the outer cylinder are arranged between the inner cylinder and the outer cylinder, one end of each energy dissipation piece is welded with the outer wall of the inner cylinder, the other end of each energy dissipation piece is welded with the inner wall; the outer barrel is fixed on the cross beam through a first connecting steel plate, two limiting plates are welded on the outer wall of the outer barrel, the included angle between the two limiting plates is 90 degrees, one limiting plate is horizontally welded on one side, away from the stand column, of the outer barrel, the other limiting plate is vertically welded on the outer barrel on one side, away from the cross beam, two limiting holes are formed in each of the two limiting plates and are arranged in the axis direction of the outer barrel, the axis of each limiting hole is perpendicular to the axis of the outer barrel, and the inner barrel is fixed on the stand column through a second connecting steel plate; the driving chain comprises three sections of first chains and two sections of second chains, the three sections of first chains and the two sections of second chains are connected to form a line section chain, all the first chains are spaced, all the second chains are spaced, and the limiting holes are holes through which the first chains cannot pass and the second chains can pass; the end points of the first section of first chain are welded on the cross beam, the two sections of second chains respectively penetrate through the limiting holes of the two limiting plates, the second section of first chain is hung on the fixed pulley, the two ends of the torsion spring are respectively fixedly connected with the fixed shaft and the tail end of the third section of first chain, when the stand column and the cross beam are in a natural state, the driving chain is in a completely extended state, and the torsion spring is in a natural state.
2. The structure of claim 1, wherein: and the distance between one end of the third section of first chain far away from the fixed shaft and one end of the second section of first chain far away from the fixed shaft and the nearest limit plate is equal, and the distance is 2-5 mm.
3. The structure of claim 2, wherein: the outer barrel is provided with a rotating groove, when the stand column and the cross beam are in a natural state, the second connecting steel plate is positioned in the middle of the rotating groove, and when the inner barrel and the outer barrel rotate relatively, a space for the second connecting steel plate to move is formed in the rotating groove.
4. The structure of claim 3, wherein: the first connecting steel plate and the second connecting steel plate are made of mild steel.
5. The structure of claim 4, wherein: a fixed box is covered on the outer side of the fixed pulley and is fixed on the upright post through an embedded bolt; the outer side of the fixed shaft is covered with a movable box, and the movable box is fixed on the cross beam through embedded bolts.
6. The structure of any one of claims 1-5, wherein: and a sliding limiting guide rail is welded between the two limiting plates on the outer barrel, and the two sections of second chains are both connected with the sliding limiting guide rail in a sliding manner.
7. The construction method of the limit energy dissipation structure of claim 6, characterized in that: the method comprises the following steps:
mounting a roller, welding the roller welded with two limiting plates, a first connecting steel plate and a second connecting steel plate at an included angle between a cross beam and an upright post, mounting a fixed pulley and a fixed box on the upright post, and mounting a fixed shaft and a movable box on the cross beam;
the driving chain is installed by using a limit adjusting ruler, the initial length of a first section of first chain and the initial length of a third section of first chain are both longer than the actually required length, the other chains are set lengths, the limit adjusting ruler comprises a clamp and an adjusting plate, the clamp is C-shaped, the clamp comprises two first transverse plates and side plates, the two first transverse plates are parallel, two ends of each side plate are respectively connected with the two first transverse plates, bolt holes are respectively formed in one first transverse plate and the side plates, the adjusting plate is an L-shaped plate and comprises a vertical plate and a second transverse plate, a long hole is formed in the vertical plate, a U-shaped adjusting groove is formed in the second transverse plate, the U-shaped adjusting groove is a groove through which the first chain cannot pass and the second chain can pass, the long hole in the vertical plate is connected with the bolt holes in the side plates through adjusting bolts, and a positioning pin rotatably connected with the adjusting bolts is arranged, a vertical plate of the adjusting plate is provided with a scale; respectively penetrating the second chain through two limiting holes on the sliding limiting guide rail and the two limiting plates, hanging the second section of the first chain on the fixed pulley, sleeving the torsion spring on the fixed shaft, and welding one end of the torsion spring on the fixed shaft; inserting a clamp into a limiting plate parallel to a cross beam, positioning the limiting plate between two first transverse plates, taking a locking bolt, screwing the locking bolt into a bolt hole on the first transverse plates to fix the clamp on the limiting plate parallel to the cross beam, loosening an adjusting bolt to enable a vertical plate to be in an active state, adjusting a positioning needle to be horizontal, adjusting the position of the vertical plate to enable the distance from the bottom surface of a second transverse plate to the bottom surface of the limiting plate parallel to the cross beam to reach a set distance, screwing the adjusting bolt, pushing a second chain below the limiting plate parallel to the cross beam into a U-shaped adjusting groove, pulling the head end of a first section of first chain until a third section of first chain is propped against the U-shaped adjusting groove until a driving chain cannot be pulled, welding one end of the third section of first chain, far away from the second chain, with the other end of a torsional spring, enabling the third section of first chain to be in a completely extended state, and welding one end of the first section of the first chain, which is far away from the second chain, with the cross beam, so that the driving chain is in a completely extended state, cutting off the redundant parts of the first section of the first chain and the third section of the first chain, loosening the locking bolt on the first transverse plate, and detaching the limiting adjusting ruler from the limiting plate.
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| CN201910448456.7A CN110145045B (en) | 2017-10-21 | 2017-10-21 | Limiting energy dissipation structure and construction method thereof |
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| CN201710987781.1A CN107558787B (en) | 2017-10-21 | 2017-10-21 | A kind of limit energy-dissipation structure and its construction method |
| CN201910448456.7A CN110145045B (en) | 2017-10-21 | 2017-10-21 | Limiting energy dissipation structure and construction method thereof |
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| US20030099413A1 (en) * | 2001-11-26 | 2003-05-29 | Lee George C. | Seismic isolation bearing |
| WO2007072777A1 (en) * | 2005-12-21 | 2007-06-28 | Oiles Corporation | Negative rigidity device and vibration isolating construction provided with this negative rigidity device |
| KR100734219B1 (en) * | 2006-11-23 | 2007-07-02 | 재 술 나 | Protection guard for impact absorption for use in post structure |
| JP6325854B2 (en) * | 2014-03-18 | 2018-05-16 | 文化シヤッター株式会社 | Switchgear |
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| CN201198610Y (en) * | 2008-04-03 | 2009-02-25 | 新康卓科技股份有限公司 | Energy dissipator of buildings |
| CN103924680A (en) * | 2014-04-14 | 2014-07-16 | 北京工业大学 | Precast concrete beam and square-rectangular concrete-filled steel tube column combining joint employing unbonded prestressed and ordinary reinforcement for connection |
| CN103981951A (en) * | 2014-05-30 | 2014-08-13 | 刘浩琳 | Combined ball shock insulation support |
| CN203977612U (en) * | 2014-06-24 | 2014-12-03 | 上海大学 | A kind of On A Retrofitted Damper |
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| CN105735509A (en) * | 2016-03-18 | 2016-07-06 | 武汉理工大学 | Viscous liquid damping torsion-resistant cylinder used in building structure |
| CN205857376U (en) * | 2016-06-27 | 2017-01-04 | 华东建筑设计研究院有限公司 | A kind of novel joint attachment means being applicable to prefabricated concrete structure |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107558787A (en) | 2018-01-09 |
| CN107558787B (en) | 2019-06-28 |
| CN110145045A (en) | 2019-08-20 |
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