CN216892930U

CN216892930U - Built-in removable power consumption connection take perps shear force wall

Info

Publication number: CN216892930U
Application number: CN202121350028.XU
Authority: CN
Inventors: 王斌; 张彦杰; 史庆轩; 吴梦臻
Original assignee: Xian University of Architecture and Technology
Current assignee: Xian University of Architecture and Technology
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2022-07-05
Anticipated expiration: 2031-06-17

Abstract

A shear wall with a built-in replaceable energy-consumption connection and a vertical joint comprises a shear wall with a vertical joint and a novel shearing energy-consumption type replaceable damper, wherein the novel shearing energy-consumption type replaceable damper is arranged in a vertical joint of the shear wall with a vertical joint; novel removable attenuator of shearing power consumption type includes the multisection power consumption steel sheet, multisection power consumption steel sheet both ends are provided with T type connecting piece, and T type connecting piece passes through resistance to plucking bolt and takes perps shear force wall rigid coupling, the multisection power consumption steel sheet outside is along oblique diagonal angle through the articulated two sets of dish spring devices of cotter, and articulated interface sets up on T type connecting piece. The self-resetting and replaceable shear wall has high energy consumption efficiency, has self-resetting and replaceable functions, is used for improving the anti-seismic performance of the shear wall, and realizes quick recovery of functions after earthquake.

Description

Built-in removable power consumption connected shear force wall of taking perps

Technical Field

The utility model relates to the technical field of earthquake-resistant structure systems, in particular to a built-in shear wall with replaceable energy consumption connection and a vertical joint.

Background

The traditional anti-seismic structure adopts a method for improving the rigidity and the strength of a shear wall. Although the loss can be reduced to a certain extent, the bottom of the shear wall can suffer serious damage and generate remarkable residual deformation, meanwhile, the damage caused by the shear wall is usually difficult to reinforce and repair, and the repair needs a large amount of manpower and material resources, so that the loss caused by the society is still huge.

In order to improve the seismic capacity of the shear wall, an energy dissipation and shock absorption idea in a structure passive control theory is introduced into seismic design, and the shear wall is provided with vertical joints which are connected through energy dissipation devices to form the energy dissipation shear wall with the vertical joints. According to the existing documents and experiments, the energy dissipation devices between the vertical joints of the shear wall can provide effective connection under the action of wind vibration and small vibration, so that the shear wall with the vertical joints has better integrity and enough lateral stiffness, and the deformation requirement of normal use is met; under the action of strong earthquake, the energy dissipation device is used as a first earthquake-proof defense line to dissipate earthquake input energy, so that the damage of the wall body is delayed and alleviated, the shear wall with the whole section is immediately split into a plurality of slender wall limbs, the ductility is obviously improved, the natural vibration period of the structure is increased, and the earthquake force borne by the structure and the input of the earthquake energy are reduced. However, the existing energy-consuming shear wall with the vertical seams still has certain defects, for example, the existing energy-consuming device cannot give full play to the energy-consuming and deformation capabilities, and in addition, the existing energy-consuming device can be replaced after an earthquake and is connected with wall limbs through bolts, but due to the lack of effective self-resetting measures, the replaceability after the earthquake is doubtful due to the residual deformation among the wall limbs.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model aims to provide the shear wall with the vertical joints, which is internally provided with the replaceable energy consumption connection, has high energy consumption efficiency, has the self-resetting and replaceable functions, is used for improving the seismic performance of the shear wall, and realizes the quick recovery of the functions after the earthquake.

In order to achieve the purpose, the utility model adopts the technical scheme that:

a shear wall with a built-in replaceable energy-consumption connection and a vertical joint comprises a shear wall 1 with a vertical joint and a novel shearing energy-consumption type replaceable damper 2, wherein the novel shearing energy-consumption type replaceable damper 2 is arranged in the vertical joint of the shear wall 1 with the vertical joint;

novel removable attenuator of shearing power consumption type 2 includes multisection power

consumption steel sheet

6, 6 both ends of multisection power consumption steel sheet are provided with T type connecting piece 3, and T type connecting piece 3 passes through resistance to plucking bolt 7 and takes 1 rigid couplings of perps shear force wall, 6 outside edges of multisection power consumption steel sheet are along oblique diagonal angle through two sets of dish spring devices 5 of cotter hinge joint, and articulated interface 8 sets up on T type connecting piece 3.

And two groups of hinged joints 8 are welded at the flange end parts of the left side and the right side of the T-shaped connecting piece 3.

The bolt hole on one side of the T-shaped connecting piece 3 is a horizontal strip-shaped pore channel 10, the vertical strip-shaped bolt hole 4 is arranged on the corresponding side of the multi-slit energy-consumption steel plate 6, the common bolt hole is arranged on the T-shaped connecting piece 3 on the other side, and the common bolt hole 9 is also arranged on the multi-slit energy-consumption steel plate 6 on the corresponding side.

The width of the steel strip at different positions of the multi-slit energy-consuming steel plate 6 is determined according to the following formula:

wherein f is_yIs the yield strength of the multi-slit energy-consuming steel plate, t is the thickness of the multi-slit energy-consuming steel plate, V is the shearing force,

is the yield bending moment of the end part, L is the length of the multi-slit energy-consumption steel plate, and the width of the steel strip at different positions:

and the minimum width of the steel strip is 20% of the maximum width of the steel strip.

The disc spring device 5 comprises an outer cylinder 11, an inner cylinder 12, a disc spring 14 and baffle plates 13, wherein the disc springs 14 are placed in the outer cylinder 11, the baffle plates 13 are arranged at two ends of each disc spring 14, the inner cylinder 12 penetrates through an inner hole of each disc spring 14 and the baffle plates 13 at two ends of each inner cylinder, one end of each inner cylinder 12 is provided with a hinged joint 15, and one end of each outer cylinder at the other end is provided with a hinged joint 15.

The two groups of disc spring devices 5 are arranged in a crossed manner.

The utility model has the beneficial effects that:

compared with the traditional shear wall, the shear wall with the vertical joints and the replaceable energy-consuming connection is built in, so that the deformation capacity and the energy-consuming capacity are remarkably improved, damage is also transferred to the replaceable dampers among the vertical joints from the wall feet, and the overall anti-seismic performance is remarkably improved. The adopted novel shearing energy-consumption type replaceable damper has the following advantages:

the variable cross-section multi-slit steel plate can exert the plastic energy consumption capability to the maximum extent;

the disc spring devices which are arranged in an oblique and diagonal cross mode can provide self-resetting capability and overcome the problem of axial buckling of the steel plate;

the matching use of the horizontal and vertical strip-shaped pore passages provides a certain redundant space for replacing the energy-consuming steel plate;

the energy dissipation and shock absorption device comprises three energy dissipation mechanisms, namely steel plate plastic energy dissipation, disc spring friction energy dissipation and friction energy dissipation between the connecting plate and the energy dissipation steel plate, and has the advantage of graded multiple energy dissipation.

Drawings

FIG. 1 is a schematic view of a shear wall with a perps with a built-in replaceable energy consuming connection according to the present invention.

Fig. 2 is a front view of the novel shear dissipative replaceable damper of the present invention.

Fig. 3 is a top view of the novel shear dissipative replaceable damper of the present invention.

FIG. 4 is a schematic view of a T-connector of the present invention.

FIG. 5 is a top view of the T-connector of the present invention.

FIG. 6 is a schematic view of a multi-slit energy-dissipating steel plate according to the present invention.

FIG. 7 is a partial schematic view of a multi-slit energy-dissipating steel plate according to the present invention.

Fig. 8 is a schematic view of a disc spring device according to the present invention.

Fig. 9 is a cross-sectional view of the disc spring device of the present invention.

FIG. 10 is a cloud of damage to a common shear wall.

FIG. 11 is a cloud of damage to a slotted shear wall with built-in replaceable dampers.

FIG. 12 is a schematic view of the hysteresis curve of a common shear wall and a shear wall with a built-in replaceable damper and a vertical joint

Reference numerals are used.

The novel energy-consumption-type shear wall with the vertical joints comprises a shear wall 1 with the vertical joints, a novel shearing energy-consumption-type replaceable damper 2, a T-shaped connecting piece 3, a vertical strip-shaped threaded hole 4, a disc spring device 5, a multi-joint energy-consumption steel plate 6, an anti-pulling bolt 7, a hinged connector 8, a common bolt hole 9, a horizontal strip-shaped bolt hole 10, an outer cylinder 11, an inner cylinder 12, a baffle 13, a disc spring 14 and a disc spring device two-end hinged connector 15.

Detailed Description

The present invention will be described in further detail with reference to examples.

As shown in fig. 1-8, a shear wall with a vertical joint and energy dissipation function comprises a shear wall 1 with a vertical joint and a novel replaceable damper 2 with energy dissipation function, wherein the novel replaceable damper 2 with energy dissipation function comprises a multi-joint energy dissipation steel plate 6, a T-shaped connecting piece 3 and a disc spring device 5.

When the shear wall 1 with the vertical joints is poured, the vertical joints are reserved in advance, and uplift bolts 7 are embedded in two side wall limbs of the vertical joints.

T type connecting piece 3 weld with resistance to plucking bolt 7 in advance to at the edge of a wing tip welding two sets of articulated joint 8 of the T shape connecting piece 3 left and right sides, even if be equipped with from reset device also difficult avoid shake back both sides wall limb have relative residual deformation, consequently the bolt hole of T shape connecting piece 3 one side adopts horizontal bar bolt hole 10, corresponds the side at the multislice power consumption steel sheet 6 and sets up vertical bar bolt hole 4, so that for the power consumption steel sheet change leave certain redundant space, the power consumption steel sheet of the one side that opposite side T type connecting piece 3 corresponds sets up ordinary bolt hole 9.

The multi-slit energy-consumption steel plate 6 converts steel plates mainly subjected to shearing into a series of steel strips mainly subjected to bending through slitting so as to increase energy consumption capacity and plastic deformation capacity. The steel plate slotting energy consumption unit (steel belt) adopts a variable cross section form, namely the steel belt widths at different positions are calculated according to the principle that the external force bending moment born by the steel belt is equal to the yield bending moment of the cross section of the steel belt, so that the yield energy consumption capacity of the steel is exerted to the maximum extent, and the minimum width of the steel belt is limited at the minimum mid-span bending moment to ensure the capacity of transferring shearing force at the position.

The disc spring device 5 includes an outer cylinder 11, an inner cylinder 12, a disc spring 14, and a baffle 13. A plurality of disc springs 14 are designed according to actual requirements and placed in the outer cylinder, the baffles 13 are arranged at two ends of each disc spring 14, and the inner cylinder 12 penetrates through inner holes of the disc springs 14 and the baffles 13 at two ends.

One end of the inner cylinder 12 is provided with a hinged joint 15, and one end of the outer cylinder 11 is provided with a hinged joint 15. The disc spring device 5 can realize that the disc spring 14 is always in a pressed state under the action of tension or pressure so as to provide required restoring force, the vertical component of the restoring force can ensure that the deformed energy-consuming steel plate returns to an initial state, the horizontal component of the restoring force can resist the axial force generated by the left wall limb and the right wall limb, the steel belt with a small cross-middle section is prevented from being buckled, and meanwhile, conical surface friction between the discs under the action of reciprocating load can provide certain damping energy-consuming capacity.

As shown in fig. 6 and 7, in the multi-slit energy-consuming steel plate 6, the width of the steel strip at different positions is determined according to the following formula:

is the bending of the endAnd (4) taking bending moment, wherein L is the length of the multi-slit energy-consumption steel plate. The steel strip width at different positions can be obtained:

As shown in fig. 10 and fig. 11, by comparing damage clouds of the common shear wall and the shear wall with a vertical joint and with a built-in replaceable energy consumption connection, the overall damage degree of the shear wall with a vertical joint and with a built-in replaceable energy consumption connection is low, and the damage is transferred to a replaceable energy consumption device; meanwhile, the stress of the free end of the web plate is reduced, and the occurrence of a stressed weak area is avoided.

As shown in fig. 12, by comparing hysteresis curves of the common shear wall and the perps shear wall with the built-in replaceable energy consumption connection, although the bearing capacity and the rigidity of the perps shear wall with the built-in replaceable energy consumption connection are weakened to some extent, the deformation capacity and the energy consumption capacity are remarkably enhanced.

Claims

1. The shear wall with the built-in replaceable energy-consumption connection and the perps is characterized by comprising a shear wall (1) with the perps and a novel shearing energy-consumption type replaceable damper (2), wherein the novel shearing energy-consumption type replaceable damper (2) is arranged in the perps of the shear wall (1) with the perps;

novel removable attenuator of shear energy consumption type (2) is including multisection energy consumption steel sheet (6), multisection energy consumption steel sheet (6) both ends are provided with T type connecting piece (3), T type connecting piece (3) through resistance to plucking bolt (7) with take perps shear force wall (1) rigid coupling, multisection energy consumption steel sheet (6) outside is along oblique diagonal angle through two sets of dish spring devices of cotter hinge (5), and articulated interface (8) set up on T type connecting piece (3).

2. The shear wall with the perps and the built-in replaceable energy-consuming connection according to claim 1, wherein two sets of hinged joints (8) are welded at the flange ends of the left side and the right side of the T-shaped connecting piece (3).

3. The shear wall with the vertical joints and the built-in replaceable energy-consuming connection according to claim 1, wherein the bolt holes on one side of the T-shaped connecting pieces (3) are horizontal strip-shaped hole passages (10), the vertical strip-shaped bolt holes (4) are formed in the corresponding side of the multi-joint energy-consuming steel plate (6), the common bolt holes are formed in the T-shaped connecting pieces (3) on the other side, and the common bolt holes (9) are also formed in the multi-joint energy-consuming steel plate (6) on the corresponding side.

4. The shear wall with the perps and the built-in replaceable energy-consuming connection according to claim 1, wherein the disc spring device (5) comprises an outer cylinder (11), an inner cylinder (12), a disc spring (14) and baffles (13), a plurality of disc springs (14) are placed in the outer cylinder (11), the baffles (13) are arranged at two ends of the disc spring (14), the inner cylinder (12) penetrates through an inner hole of the disc spring (14) and the baffles (13) at two ends, one end of the inner cylinder (12) is provided with a hinged joint (15), and one end of the outer cylinder at the other end is provided with a hinged joint (15).

5. The shear wall with the perps and the built-in replaceable energy-consuming connection according to claim 1, wherein the two sets of disc spring devices (5) are arranged in a crossing manner.