CN109914634B - Assembled special-shaped column joint and construction method - Google Patents
Assembled special-shaped column joint and construction method Download PDFInfo
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- CN109914634B CN109914634B CN201910278121.5A CN201910278121A CN109914634B CN 109914634 B CN109914634 B CN 109914634B CN 201910278121 A CN201910278121 A CN 201910278121A CN 109914634 B CN109914634 B CN 109914634B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
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- E—FIXED CONSTRUCTIONS
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- 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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Abstract
The invention discloses an assembled special-shaped column node and a construction method, wherein a limiting energy consumption device of the assembled special-shaped column node comprises a roller and a driving chain, a fixed pulley is arranged at a position, higher than the roller, on the special-shaped column, a fixed shaft is fixed on a cross beam, the fixed shaft and the special-shaped column 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 consumption pieces uniformly distributed in annular cavities of the inner cylinder and the outer cylinder are arranged between the inner cylinder and the outer cylinder, and one end of each energy consumption piece is welded with the outer wall of the inner cylinder. The invention can improve the shear rigidity of the beam-column joint, increase the stability of the structure, improve the deformation resistance of the structure and reduce the damage of earthquake to the structure. The construction method can accurately control the installation positions of the driving chains under the natural state of the special-shaped columns and the beams.
Description
Technical Field
The invention relates to the technical field of building earthquake prevention, in particular to an assembled special-shaped column joint and a construction method thereof.
Background
With the continuous expansion of the residential building scale and the vigorous advancement of the modernization of the residential industry in China, the multilayer special-shaped column frame light wall structure system with the building function superior to that of the common frame structure is gradually popularized and applied. The special-shaped column structure is adopted to avoid the frame column from protruding indoors, the building space is occupied less, and convenience is brought to building design and use functions. The house with the special-shaped column frame structure has good economic benefit, environmental benefit and social benefit and shows good development prospect.
China is one of countries with frequent land earthquakes, particularly in recent years, earthquakes frequently occur, and disasters caused by the earthquakes are more and more serious. The test research shows that under the same condition, the shearing bearing capacity of the special-shaped column frame beam-column joint core area is lower than that of the rectangular column frame beam-column joint with the same cross-sectional area, and the special-shaped column frame beam-column joint core area is a weak link of the special-shaped column, so that the application of the special-shaped column frame beam-column joint in a high-intensity area is directly influenced.
In addition, the energy generated during an earthquake is not released all at once, but is released outward in a burst. 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 also important to improve the connection between the structures so that they can 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 an assembled special-shaped column node with good anti-seismic performance and a construction method of the assembled special-shaped column node.
In order to solve the technical problem, the assembly type special-shaped column node comprises a special-shaped column and cross beams which are respectively arranged on two sides of the special-shaped column, a node energy consumption device is arranged at the joint of the special-shaped column and the cross beam on each side, a limiting energy consumption device is arranged at least one included angle of the special-shaped column and the cross beam, and the cross beams on two sides of the special-shaped column are connected through a tension prestressed steel bar.
In order to further improve the shock resistance of the fabricated special-shaped column node, the node energy consumption device comprises a third connecting steel plate, a fourth connecting steel plate and a rubber pad, wherein the third connecting steel plate and the fourth connecting steel plate are opposite, and the rubber pad is positioned between the third connecting steel plate and the fourth connecting steel plate; one side of a third connecting steel plate is welded with a first reinforcing steel bar, the other side of the third connecting steel plate is welded with an energy consumption column, the third connecting steel plate is embedded in the special-shaped column through the first reinforcing steel bar, one side of a fourth connecting steel plate is welded with a third reinforcing steel bar, and the fourth connecting steel plate is embedded in the cross beam through the third reinforcing steel bar; a second steel bar with one end penetrating through the third connecting steel plate is embedded in the special-shaped column, a fourth steel bar is embedded in the cross beam, one end of the fourth steel bar is embedded in the cross beam, and the other end penetrates through the fourth connecting steel plate; the tensioning prestressed steel bar penetrates through the two cross beams, the two third connecting steel plates, the two fourth connecting steel plates and the special-shaped column, the fourth connecting steel plate is provided with an energy consumption hole corresponding to the energy consumption column, rolling balls are arranged on hole walls on the left side and the right side of the energy consumption hole, the energy consumption column can be inserted into the energy consumption hole in a vertically sliding mode, a spring is arranged between the third connecting steel plate and the fourth connecting steel plate, the rubber pad is located in a spring coil of the spring, and two ends of the spring are respectively connected with the second reinforcing steel bar and the fourth reinforcing steel bar; a groove is formed in the middle of the end face of the rubber pad, a first steel cylinder and a second steel cylinder are respectively mounted on the groove walls at the two ends of the groove, a fixing device is arranged in the groove and comprises two first connecting rods, two second connecting rods and a driving rod, one end, far away from the first steel cylinder, of the driving rod is welded on a third connecting steel plate, the other end of the driving rod extends into the groove, one ends of the two first connecting rods are respectively hinged to the two sides of the first steel cylinder, the two first connecting rods are respectively hinged to the driving rod through the second connecting rods, the two second connecting rods and the driving rod are hinged to the same point, and in the process that the driving rod moves axially along the driving rod in the groove, one ends, far away from the first steel cylinders, of the two first connecting rods are in two states of being attached to the two sides of; the two node energy consumption devices share a second steel bar, and two ends of the second steel bar respectively extend out of third connecting steel plates on two sides of the special-shaped column; when the special-shaped column and the cross beam are in a natural state, one ends, far away from the first steel cylinder, of the two first connecting rods are attached to two sides of the second steel cylinder, the rubber pads are in contact with the fourth connecting steel plate, and the rubber pads are in a natural state.
In order to further improve the shock resistance, the limiting energy consumption device comprises a roller and a driving chain, a fixed pulley is arranged on the special-shaped column at a position higher than the roller, a fixed shaft is fixed on the cross beam, the fixed shaft and the special-shaped column are respectively arranged on two sides of the roller, and 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 of the outer cylinder, and the middle of each energy dissipation piece is narrower than the two ends of each energy dissipation piece; 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 special-shaped column, of the outer barrel, the other limiting plate is vertically welded on one side, away from the cross beam, of the outer barrel, two limiting holes are formed in each limiting plate, the axis of each limiting hole is perpendicular to the axis of the outer barrel, and the two limiting holes in each limiting plate are arranged in the radial direction of the outer barrel; the inner cylinder is fixed on the special-shaped 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 into 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 welding of first section first chain is on the crossbeam, and first section second chain passes the spacing hole of keeping away from the cylinder on two limiting plates, and the first chain of second section is hung on the fixed pulley, and the spacing hole that is close to the cylinder on two limiting plates is passed to second section second chain, the both ends of torsional spring respectively with the terminal fixed connection of fixed axle and the first chain of third section, when dysmorphism post and crossbeam are in natural state, the driving chain is in the state of extension completely, the torsional spring is in 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 special-shaped 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 special-shaped 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 invention discloses a construction method of an assembly type special-shaped column joint, which comprises the following steps:
(1) installing a node energy consumption device to enable the two cross beams and the special-shaped column to be integrally installed;
(2) installing a roller, welding the roller welded with two limiting plates, a first connecting steel plate and a second connecting steel plate at the included angle between the beam and the special-shaped column, installing a fixed pulley and a fixed box on the special-shaped column, and installing a fixed shaft and a movable box on the beam;
(3) the method comprises the steps of installing a driving chain by using a limiting adjusting ruler, enabling the initial length of a first section of first chain and the initial length of a third section of first chain to be longer than the actually required lengths, enabling other chains to be set lengths, enabling the limiting adjusting ruler to be C-shaped, enabling the fixture to comprise two first transverse plates and side plates, enabling the two first transverse plates to be parallel to each other, enabling two ends of each side plate to be connected with the two first transverse plates respectively, enabling bolt holes to be formed in one of the first transverse plates and the side plates respectively, enabling the adjusting plate to be an L type plate, enabling the adjusting plate to comprise a vertical plate and a second transverse plate, enabling a long hole to be formed in the vertical plate, enabling a U-shaped adjusting groove to be formed in the second transverse plate, enabling the U-shaped adjusting groove to be a groove through which the first chain cannot pass through but the second chain can pass through, enabling the long hole in the vertical plate to be connected with the bolt holes in the side plates through adjusting bolts, enabling the adjusting bolt holes in the vertical plate to be rotatably connected with the adjusting bolt holes in the vertical plate, enabling the adjusting bolt holes in the adjusting plate to be in the horizontal direction, enabling the adjusting bolt adjusting groove, enabling the second transverse plate to be in the horizontal direction, enabling the adjusting bolt adjusting ruler to be in the horizontal direction, enabling the adjusting bolt to be in the horizontal direction, enabling the horizontal direction of the horizontal direction.
The invention has the beneficial effects that: the assembled special-shaped column node can not only well consume the energy released by an earthquake once, but also can continuously absorb the residual energy of the earthquake, reduce the damage of the earthquake to the beam and the special-shaped column, improve the shearing rigidity of the beam-column node, limit the vertical displacement distance of the beam, increase the stability of the beam and the special-shaped column structure, and improve the deformation resistance of the beam and the special-shaped column; the construction method of the assembled special-shaped column joint adopts the specially designed limit adjusting ruler to install the driving chain, and can accurately control the installation position of the driving chain; the invention has simple structure, convenient construction and high cost performance.
Drawings
Fig. 1 is a schematic structural diagram of a limiting energy consumption device 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;
fig. 9 is a schematic structural diagram of a fabricated special-shaped column node according to a first embodiment of the invention;
fig. 10 is an enlarged schematic view of a node energy consumption device according to a first embodiment of the present invention;
FIG. 11 is an enlarged view of a rubber pad fixing device according to a first embodiment of the present invention;
FIG. 12 is an enlarged view of the dissipative pore structure according to the first embodiment of the invention;
FIG. 13 is a schematic view of a spring connection structure according to a first embodiment of the present invention;
1-a special-shaped column; 2-a cross beam; 3-a roller; 4-a drive chain; 5-a first chain; 6-a 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. 31-a third connecting steel plate; 32-a fourth connecting steel plate; 33-a first rebar; 34-a second rebar; 35-third steel bars; 36-a fourth rebar; 37-rubber pad; 38-a spring; 39-energy consumption column; 40-tensioning the prestressed steel bar; 41-energy consumption holes; 42-a first steel cylinder; 43-a second steel cylinder; 44-a second link; 45-a first link; 46-drive the rod.
Detailed Description
Example one
As shown in fig. 9, an assembled special-shaped column node comprises a special-shaped column 1 and beams 2 respectively arranged at two sides of the special-shaped column, and a node energy consumption device is arranged at the joint of the special-shaped column 1 and the beam 2 at each side, for example, the special-shaped column 1 is a cylinder with a cross-shaped section; two included angles of the special-shaped column and the beam are respectively provided with a limiting energy dissipation device; as shown in fig. 10, the cross beams 2 on both sides of the special-shaped column are connected through the tension prestressed steel bars 40, the node energy dissipation device comprises a third connecting steel plate 31, a fourth connecting steel plate 32 and a rubber pad 37, the third connecting steel plate 31 and the fourth connecting steel plate 32 face each other, and the rubber pad 37 is located between the third connecting steel plate 31 and the fourth connecting steel plate 32; one side of the third connecting steel plate 31 is welded with a first steel bar 33, the other side of the third connecting steel plate 31 is welded with an energy consumption column 39, the third connecting steel plate 31 is embedded in the special-shaped column 1 through the first steel bar 33, one side of the fourth connecting steel plate 32 is welded with a third steel bar 35, and the fourth connecting steel plate 32 is embedded in the cross beam 2 through the third steel bar 35; a second steel bar 34 with one end extending out of the third connecting steel plate 31 is embedded in the special-shaped column 1, a fourth steel bar 36 is embedded in the cross beam 2, one end of the fourth steel bar 36 is embedded in the cross beam 2, and the other end of the fourth steel bar 32 extends out of the fourth connecting steel plate; the prestressed tensioning steel bars 40 penetrate through the two cross beams 2, the two third connecting steel plates 31, the two fourth connecting steel plates 32 and the special-shaped column 1, as shown in fig. 12, the fourth connecting steel plates 32 are provided with energy consumption holes 41 corresponding to the energy consumption columns 39, rolling balls are arranged on hole walls on the left side and the right side of the energy consumption holes 41, the energy consumption columns 39 can be inserted into the energy consumption holes 41 in a vertically sliding manner, as shown in fig. 12 and 13, the number of the second steel bars 34 and the number of the fourth steel bars 36 can be respectively four, the number of the second steel bars 34 and the number of the fourth steel bars 36 can be respectively arranged in a rectangular manner, springs 38 are arranged between the third connecting steel plates 31 and the fourth connecting steel plates 32, the rubber pads 37 are located in spring coils of the springs 38, and two ends of the springs 38 are; a groove is arranged in the middle of the end surface of the rubber pad 37, a first steel cylinder 42 and a second steel cylinder 43 are respectively arranged on the groove walls at the two ends of the groove, a fixing device is arranged in the groove, as shown in fig. 13, the fixing device includes two first connecting rods 45, two second connecting rods 44 and a driving rod 46, one end of the driving rod 46 far from the first steel cylinder is welded on the third connecting steel plate 31, the other end extends into the groove, one end of each of the two first connecting rods 45 is hinged to each of the two sides of the first steel cylinder 42, the two first connecting rods 45 are hinged to the driving rod 46 through one second connecting rod 44, the two second connecting rods 44 are hinged to the same point as the driving rod 46, during the axial movement of the driving rod 46 in the groove, one ends of the two first connecting rods 45, which are far away from the first steel cylinder 42, have two states of being attached to two sides of the second steel cylinder 43 and being separated from the second steel cylinder 43; the two node energy consumption devices share the second steel bar 34, and two ends of the second steel bar 34 respectively extend out of the third connecting steel plates 31 on two sides of the special-shaped column 1; when the special-shaped column 1 and the cross beam 2 are in a natural state, one ends of the two first connecting rods 45 far away from the first steel cylinder 42 are attached to two sides of the second steel cylinder 43, the rubber pads 37 are in contact with the fourth connecting steel plate 32, and the rubber pads 37 are in a natural state.
The rubber pad is in the natural state: the two sides of the rubber pad are not extruded, and the rubber pad is in an elastic extension state.
As shown in fig. 1, the limiting energy consumption device comprises a roller 3 and a driving chain 4, a fixed pulley 14 is arranged on the special-shaped column 1 at a position higher than the roller, a fixed box 15 covers the outer side of the fixed pulley 14, and the fixed box 15 is fixed on the special-shaped column 1 through an embedded bolt; the transverse beam 2 is fixed with a fixed shaft 16, the fixed shaft 16 and the special-shaped column 1 are respectively arranged at two sides of the roller, a torsion spring 20 is sleeved on the fixed shaft 16, the outer side of the fixed shaft 16 is covered with a movable box 17, and the movable box 17 is fixed on the transverse 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 special-shaped 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 limiting plate 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 the two sections of second chains 6 are both connected with the sliding limiting guide rail; the inner cylinder 11 is fixed on the special-shaped column 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 profile post 1 and the beam 2 are in a natural state, the second connecting steel plate 7 is located 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 5 and two sections of second chains 6, the three sections of first chains 5 and the two sections of second chains 6 are connected to form a line section chain, all the first chains 5 are spaced apart, all the second chains 6 are spaced apart, and the limiting holes 18 are holes through which the first chains 5 cannot pass and the second chains 6 can pass; the end point of the first section of the first chain 5 is welded on the cross beam 2, the first section of the second chain 6 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 is hung on the fixed pulley 14, and the second section of the second chain 6 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 end of the third-stage first chain 5, when the profiled pole 1 and the cross beam 2 are in the natural state, the driving chain 4 is in the fully extended state, and the torsion spring 20 is in the natural state.
The distance between one end of the third section of first chain 5 far away from the fixed shaft 16 and one end of the second section of first chain 5 far away from the fixed shaft 16 and the nearest limit plate 12 is equal, and the distance is 2-5 mm.
The special-shaped column and the beam are in a natural state: the special-shaped column 1 and the cross beam 2 are not in a state of structural deformation.
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.
The construction method of the assembly type special-shaped column joint is mainly characterized in that a limit adjusting ruler is used for determining the actually required length of a driving chain 4 and determining the distance between the connecting end of a first chain 5 and a second chain 6 and a limit plate 12 when the special-shaped column 1 and a cross beam 2 are in a natural state, and specifically comprises the following steps:
(1) installing a point energy consumption device to integrally install the two cross beams and the special-shaped column;
(2) 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 special-shaped column 1, installing a fixed pulley 14 and a fixed box 15 on the special-shaped column 1, and installing a fixed shaft 16 and a movable box 17 on the beam 2;
(3) the method comprises the steps of installing a driving chain 4 by using a limiting adjusting ruler, enabling the initial length of the driving chain 4 to be longer than the actually required length, enabling other chains to be set in length, enabling the limiting adjusting ruler to comprise a clamp 21 and an adjusting plate 22 as shown in figure 5, enabling the clamp 21 to be C-shaped, enabling the clamp to comprise two first transverse plates 23 and side plates 24, enabling the two first transverse plates 23 to be parallel to each other, enabling bolt holes to be formed in one first transverse plate 23 and the side plates 24 respectively, enabling the adjusting plate 22 to be an L-shaped plate, enabling the adjusting plate to comprise a vertical plate 26 and a second transverse plate 25 as shown in figure 6, enabling the vertical plate 26 to be provided with a strip hole 27 as shown in figure 7, enabling the second transverse plate 25 to be provided with a U-shaped adjusting groove 30, enabling the first chain 5 not to pass through the groove and the second chain 6 to pass through, enabling the vertical plate 26 and the side plates 24 to be connected through adjusting bolts, enabling the adjusting bolts to pass through the strip hole 27 in the vertical plate 26 and the side plates 24, enabling the adjusting bolts to pass through the adjusting bolt holes in the strip hole 27 in the vertical plate 26 and the side plates 24, enabling the adjusting bolt holes in the adjusting plate 26 in the second transverse plate 5 to be in parallel to be in the limiting plate, enabling the adjusting bolt holes to be in the second transverse plate 5 to be in the horizontal direction, enabling the second transverse plate 5 to be in the horizontal direction, enabling the second transverse plate to be in the horizontal direction, enabling the adjusting bolt holes to be in the horizontal direction, enabling the second transverse plate 5 to be in the horizontal direction, enabling the adjusting bolt holes to be in the horizontal direction, enabling the second transverse plate 5 to be in the horizontal direction, enabling the two transverse plate 5 to be in the horizontal direction, enabling the adjusting bolt holes to be in the horizontal direction, enabling the horizontal direction of the horizontal.
Example two
As shown in fig. 8, the embodiment is different from the embodiment in 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 special-shaped 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 sections of second chains 6 respectively pass through one limiting hole of.
EXAMPLE III
The difference between this embodiment and the embodiment is that, this embodiment replaces the prestressed tension steel bar with the steel strand, and the rubber pad is located between third connecting steel plate 31 and fourth connecting steel plate 32, rubber pad 37 constitute by two-layer rubber pad, two-layer rubber pad passes through fixing device to be fixed between third connecting steel plate 31 and fourth connecting steel plate 32, and first steel cylinder 42 and second steel cylinder 43 are in two-layer rubber pad respectively, and other structures are the same.
The sliding limit rail 13 in the foregoing embodiment may be a cage provided with balls or rollers in multiple layers, the cage being fixed to the outer cylinder 10, and the second chain 6 passing through the middle of the two layers of balls or rollers.
The working principle of the assembled special-shaped column joint is as follows: the assembled special-shaped column node comprises a node energy consumption device and a limiting energy consumption device, wherein the node energy consumption device is arranged at the joint of a special-shaped column 1 and a cross beam 2, and the limiting energy consumption device is arranged at least one included angle between the special-shaped column 1 and the cross beam 2; when an earthquake occurs, the node of the special-shaped column 1 and the cross beam 2 is subjected to shearing force, so that the cross beam 1 is vertically displaced, the energy consumption column 39 vertically slides in the energy consumption hole 41, the shearing force at the node of the beam column is absorbed, the displacement of the cross beam 2 is reduced, meanwhile, the fourth connecting steel plate 32 extrudes the rubber pad 37, the rubber pad 37 elastically deforms, and the energy released by the earthquake is absorbed and consumed; when an earthquake occurs, when an included angle between the special-shaped column 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 5 and the second chain 6 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 5 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 special-shaped column 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, the rubber pad 37 is restored to the original state, so that the beam 2 is restored to the original natural state, the damaged limiting energy dissipation device can be detached at the joint, and a new limiting energy dissipation device is installed. The combined action of the node energy dissipation device and the limiting energy dissipation device can ensure that the beam and the column of the fabricated special-shaped column node are not greatly damaged in large-scale earthquakes.
Claims (6)
1. The utility model provides an assembled dysmorphism post node, includes special-shaped post and the crossbeam of branch department in special-shaped post both sides, its characterized in that: the energy-consuming device comprises a roller and a driving chain, a fixed pulley is arranged on the special-shaped column at a position higher than the roller, a fixed shaft is fixed on the cross beam, the fixed shaft and the special-shaped column are respectively arranged on two sides of the roller, a torsion spring is sleeved on the fixed shaft, the roller comprises an inner roller and an outer roller, a plurality of energy-consuming pieces uniformly distributed in annular cavities of the inner roller and the outer roller are arranged between the inner roller and the outer roller, one end of each energy-consuming piece is welded with the outer wall of the inner roller, the other end of each energy-consuming piece is welded with the inner wall of the outer roller, and the middle of each energy-consuming piece is narrower than the two ends of each energy-consuming piece; 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 special-shaped 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 limiting plate, the axes of the limiting holes are perpendicular to the axis of the outer barrel, the two limiting holes in each limiting plate are arranged in the radial direction of the outer barrel, and the inner barrel is fixed on the special-shaped column through a second connecting steel; 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 welding of first section first chain is on the crossbeam, and first section second chain passes the spacing hole of keeping away from the cylinder on two limiting plates, and the first chain of second section is hung on the fixed pulley, and the spacing hole that is close to the cylinder on two limiting plates is passed to second section second chain, the both ends of torsional spring respectively with the terminal fixed connection of fixed axle and the first chain of third section, when dysmorphism post and crossbeam are in natural state, the driving chain is in the state of extension completely, the torsional spring is in natural state.
2. The fabricated profiled pole node 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 fabricated profiled pole node of claim 2, wherein: the outer barrel is provided with a rotating groove, when the special-shaped 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 fabricated profiled pole node of claim 3, wherein: a fixed box is covered on the outer side of the fixed pulley and is fixed on the special-shaped column 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.
5. Fabricated profiled pole node according to any of claims 1-4, characterized in that: 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.
6. A construction method of the fabricated profiled column joint as claimed in claim 5, wherein: the method comprises the following steps:
installing a node energy consumption device to enable the two cross beams and the special-shaped column to be integrally installed;
installing a roller, welding the roller welded with two limiting plates, a first connecting steel plate and a second connecting steel plate at the included angle between the beam and the special-shaped column, installing a fixed pulley and a fixed box on the special-shaped column, and installing a fixed shaft and a movable box on the beam;
the method comprises the steps of installing a driving chain by using a limiting adjusting ruler, enabling the initial length of a first section of first chain and the initial length of a third section of first chain to be longer than the actually required lengths, enabling other chains to be set lengths, enabling the limiting adjusting ruler to be C-shaped, enabling the fixture to comprise two first transverse plates and side plates, enabling the two first transverse plates to be parallel to each other, enabling two ends of each side plate to be connected with the two first transverse plates respectively, enabling bolt holes to be formed in one of the first transverse plates and the side plates respectively, enabling the adjusting plate to be an L type plate, enabling the adjusting plate to comprise a vertical plate and a second transverse plate, enabling a long hole to be formed in the vertical plate, enabling a U-shaped adjusting groove to be formed in the second transverse plate, enabling the U-shaped adjusting groove to be a groove through which the first chain cannot pass through but the second chain can pass through, enabling the long hole in the vertical plate to be connected with the bolt holes in the side plates through adjusting bolts, enabling the adjusting bolt holes in the vertical plate, enabling the adjusting plate to be in the horizontal direction, enabling the adjusting bolt holes in the second transverse plate to be in the adjusting ruler to be in the horizontal direction, enabling the adjusting bolt holes in the horizontal direction, enabling the adjusting groove to be in the horizontal direction, enabling the adjusting bolt holes in the horizontal direction, enabling the adjusting bolt to be in the horizontal direction, enabling the horizontal direction of the horizontal direction, enabling the horizontal direction of.
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| CN201710987787.9A CN107675807B (en) | 2017-10-21 | 2017-10-21 | A kind of assembled abnormity Column border node and construction method |
| CN201910278121.5A CN109914634B (en) | 2017-10-21 | 2017-10-21 | Assembled special-shaped column joint and construction method |
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| CN116623794B (en) * | 2023-06-09 | 2024-01-30 | 江苏华木空间结构有限公司 | Modularized steel structure special-shaped column beam column node connecting device |
| CN117888628B (en) * | 2024-03-14 | 2024-05-28 | 南安市装备制造业技术研究院 | Building steel structure with anti-seismic function |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107675807A (en) | 2018-02-09 |
| CN107675807B (en) | 2019-05-07 |
| CN109914634A (en) | 2019-06-21 |
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