CN213572500U

CN213572500U - Corrugated steel plate-lead composite member

Info

Publication number: CN213572500U
Application number: CN202021618966.9U
Authority: CN
Inventors: 金华建; 孙飞飞; 杨嘉琦; 李国强
Original assignee: Tongji University
Current assignee: Tongji University
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2021-06-29
Anticipated expiration: 2030-08-06

Abstract

A corrugated steel sheet-lead composite member characterized in that: the lead-free steel plate comprises an oblique corrugated steel plate (1), an edge restraining member (2), a lead damper (3), a connecting end plate (4) and a lead block clamp (5); the periphery of the corrugated steel plate (1) is welded in a frame enclosed by the edge restraining component (2) and the connecting end plate (4); the lead dampers (3) are respectively poured on two sides of the web plate of each edge constraint component (2); the edge restraining member (2) is T-shaped steel. The double-stage earthquake resistance is realized, the lead damper firstly yields, consumes energy and absorbs shock under a small earthquake, and the corrugated steel plate wall keeps elasticity to provide rigidity for the structure. And under a large earthquake, the lead damper and the corrugated steel plate wall yield, consume energy and absorb shock. The quantity and the size of the lead blocks can be changed, and the energy consumption capacity under small vibration can be adjusted according to the structural requirements.

Description

Corrugated steel plate-lead composite member

Technical Field

The application relates to the novel energy dissipation and shock absorption field of the building engineering technology.

Background

As the demand for structural performance design increases, composite multifunctional members for controlling the dynamic response of structures under multistage earthquakes have received more attention.

The corrugated steel plate wall has large yield displacement and bearing capacity, generally keeps elasticity under small earthquake, provides rigidity for the structure, enters plasticity under medium and large earthquake, and dissipates earthquake energy for the structure. The closest prior art is:

the invention relates to a buckling-free waveform structural energy consumption component and a design method thereof (China invention application number 201710425071.X), which are applied and filed 6/2017 in Lizhong, Sun Fei and Jinhuajian.

The 'quake-proof heat-preservation sound-insulation integrated wall' (Chinese invention application number 201710552568.8) is applied and filed 6.6.2017 in Lizhong, Sun Fei and Jinhuajian.

The method fully utilizes the advantage of large external rigidity of the corrugated steel plate, ensures the performance of the component, has good economy and convenient processing, and has wide application prospect. However, corrugated steel sheet walls still have three problems in their application:

the first problem is that: under the condition of small earthquake, the corrugated steel plate wall improves the rigidity of the structure and simultaneously improves the earthquake action of the input structure, and when the characteristic period of the field is approached, the reduction of the displacement between the floors of the structure caused by the structural rigidity improvement of the corrugated steel plate wall is probably smaller than the increase of the displacement between the floors of the structure caused by the increase of the earthquake action due to the structural rigidity improvement. Coping with the problems, the elastic design requirement under the condition of small earthquake is often met by increasing the section of the main structure in the prior art, obviously, the coping scheme has poor economic performance and does not have popularization significance.

The second problem is that: in a multi-story high-rise building structure, in order to ensure the uniformity of the rigidity and the bearing capacity of each floor of the structure, a corrugated steel plate wall is generally arranged in a through-height mode, at the moment, the axial force of an edge member of a bottom corrugated steel plate wall can be greatly increased due to the fact that the axial force of an upper edge member is accumulated layer by layer and transmitted downwards, if the edge member buckles outwards under the axial force, enough boundary restraint cannot be provided for the corrugated steel plate, the corrugated steel plate wall cannot fully play a role, therefore, the cross section of the edge member needs to be very large in order to ensure that the edge member does not buckle outwards under the axial force, at the moment, the economy of the corrugated steel plate wall is naturally poor, and the large-scale popularization cannot be achieved.

The third problem is that: because the edge member of the corrugated steel plate wall still keeps elasticity under overlarge cross section and large shock, the edge member can partially participate in the side resistance, so that the side resistance bearing capacity reinforcement of the corrugated steel plate wall comprises the reinforcement of corrugated steel plate steel and the contribution of the elastic force of the edge member, the reinforcement phenomenon is more obvious, the limit bearing capacity is larger, the node requirement is larger, and the design is not economical.

Disclosure of Invention

The application is based on further application and development of a buckling-free waveform structure energy dissipation component and a design method thereof (application number: 201710425071.X) and an anti-seismic heat-preservation sound-insulation integrated wall (application number: 201710552568.8) in Chinese patent application.

The application aims at providing a corrugated steel plate-lead composite component.

In order to achieve the above object, the following technical solutions are provided:

a corrugated steel sheet-lead composite member characterized in that: the lead-free corrugated steel plate comprises a corrugated steel plate 1, an edge restraining member 2, a lead damper 3, a connecting end plate 4 and a lead block clamp 5. The corrugated steel plate 1 is welded all around within a frame enclosed by the edge-constraining member 2 and the connecting end plate 4. Lead dampers 3 are poured on each side of the web of each edge restraining member 2. The edge restraining member 2 is a T-section steel. The corrugated steel plate 1 is a corrugated steel plate wall, and the section of the steel plate is trapezoidal corrugation. The edge restraining members 2 are positioned at the left side and the right side of the buckling-free corrugated steel plate 1, and the connecting end plates 4 are welded on the left side, the right side, the upper side and the lower side of the edge restraining members 2 respectively to form a frame.

Further, the lead damper 3 is a lead block. The lead is placed between the edge binding member 2 and the lead clamp 5, thereby forming a composite dual function member.

Further, the connection end plates 4 are located on the upper and lower sides of the deck plate 1 and the edge binding member 2.

Further, the lead jig 5 is composed of an end plate 51 and two clamping plates 52, and the two clamping plates 52 are welded to the end.

The lead block clamp 5 is welded on the connecting end plate 4, and the two clamping plates 51 of the lead block clamp 5 are respectively welded with the lead dampers 3 welded on the two sides of the web plate of the edge constraint component 2.

Under a small earthquake, the lead damper 3 firstly yields, consumes energy and damps, and the corrugated steel plate keeps the elasticity of the elastic body 1 to provide rigidity for the structure; under the condition of heavy shock, the lead damper 3 and the corrugated steel plate wall 1 yield, consume energy and absorb shock.

Further, the buckling constraint effect on the T-shaped edge member 2 is realized by adjusting the number of the lead blocks 3, the position of the web plate of the T-shaped edge member 2, the width and the thickness.

Compared with the prior art, the method has the following characteristics:

(1) the double-stage earthquake resistance is realized, the lead damper firstly yields, consumes energy and absorbs shock under a small earthquake, and the corrugated steel plate wall keeps elasticity to provide rigidity for the structure. And under a large earthquake, the lead damper and the corrugated steel plate wall yield, consume energy and absorb shock.

(2) The quantity and the size of the lead blocks can be changed, and the energy consumption capacity under small vibration can be adjusted according to the structural requirements.

(3) The T-shaped edge member is restrained outside the plane by the lead blocks on the two sides and the lead block clamps, and cannot be instable after the cross section is yielded, so that the corrugated steel plate wall can normally play a role.

(4) The edge member is restrained from the outside, so that elastic-plastic yielding can be achieved under the action of the axial force, the axial force of the edge member is controlled not to be too large, and the problem that the node requirement is too large due to too large reinforcement of the corrugated steel plate wall is solved. And the axial force of the edge member under the large earthquake is adjusted by adjusting the section of the edge member, so that the economical efficiency and the energy consumption capability of the composite member under the large earthquake are improved.

Drawings

Fig. 1 is a front view of an embodiment composite dual function member.

Fig. 2 is a sectional view of the composite dual function member 1-1 of the embodiment.

Fig. 3 is a sectional view 2-2 of the composite dual function member of the embodiment.

Fig. 4 is a front view a and a top view b of a lead block holder according to an embodiment.

FIG. 5 is a diagram of an embodiment application scenario.

Detailed Description

The corrugated steel plate lead composite dual-function component provided by the invention will be described in detail through specific examples.

Example 1

In view of the fact that no composite type dual-functional component which is simple in structure, easy to install and easy to replace and capable of achieving double-stage anti-seismic control exists at present. The application provides a corrugated steel plate lead composite dual-functional component. The device is arranged on an upper connecting beam and a lower connecting beam of a frame structure, and utilizes the shearing plastic deformation of the corrugated steel plate caused by the interlayer displacement of the structure during earthquake, thereby providing damping force. The device can realize the shock attenuation of two stages, and lead damper yields earlier under the light earthquake and consumes energy the shock attenuation, and corrugated steel plate wall keeps elasticity and provides rigidity for the structure. And under a large earthquake, the lead damper and the corrugated steel plate wall yield, consume energy and absorb shock.

As shown in fig. 1, 2, 3, 4, and 5, a corrugated steel plate-lead composite member is characterized in that:

the device comprises an oblique corrugated steel plate 1, an edge restraining member 2, a lead damper 3, a connecting end plate 4 and a lead block clamp 5;

further, the corrugated steel plate 1, also known as a corrugated steel plate wall, has a trapezoidal section, and is bent into trapezoidal corrugations. (for the prior art, the design and the component characteristics are disclosed in YG-379-I YG-380-I, YG-379-I) of the buckling-free corrugated steel plate 1 wave form is a buckling-free wave form, which can ensure that the corrugated steel plate does not buckle out of plane under 1/50 horizontal shear deformation of the wall height (the vertical distance from the connecting end plate on the wall body to the lower connecting end plate).

Further, the edge restraining members 2 are located on the left and right sides of the buckling-free corrugated steel plate 1, and the connecting end plates 4 are welded to the left and right sides of the edge restraining members 2, and are welded to the upper and lower sides of the edge restraining members to form a frame. The corrugated steel plate 1 is welded all around within a frame enclosed by the edge-constraining member 2 and the connecting end plate 4. Lead dampers 3 are poured on each side of the web of each edge restraining member 2. The edge restraining member 2 may be, by way of example and not limitation, a T-shaped steel.

Further, the connecting end plates 4 are positioned at the upper side and the lower side of the corrugated steel plate 1 and the edge restraining member 2, and the connecting end plates 4 are pre-opened with bolt holes for being fixed with the upper connecting beam and the lower connecting beam. The buckling-free corrugated steel plate 1 and the edge restraining member are welded together and then welded to the connecting end plate 4.

Further, as shown in fig. 4, the lead jig 5 is composed of an end plate 51 and two clamping plates 52, and the two clamping plates 52 are welded to the end.

As shown in fig. 5, the device of the present application is installed between upper and lower coupling beams of a frame structure of a building, and provides a damping force by causing shear plastic deformation of a deck plate 1 by using interlayer displacement of the structure caused by an earthquake. According to the device, under a small earthquake, the lead damper 3 firstly yields, consumes energy and absorbs shock, and the corrugated steel plate keeps the elasticity of the elastic body 1 to provide rigidity for the structure; under heavy shock, the lead damper 3 and the corrugated steel plate wall 1 yield, consume energy and absorb shock, and therefore a basic double-stage shock absorption mode is achieved.

Claims

1. A corrugated steel sheet-lead composite member characterized in that: the lead-free steel plate comprises an oblique corrugated steel plate (1), an edge restraining member (2), a lead damper (3), a connecting end plate (4) and a lead block clamp (5); the periphery of the corrugated steel plate (1) is welded in a frame enclosed by the edge restraining component (2) and the connecting end plate (4); the lead dampers (3) are respectively poured on two sides of the web plate of each edge constraint component (2); the edge restraining component (2) is T-shaped steel; the corrugated steel plate (1) is a corrugated steel plate wall, and the section of the steel plate is trapezoidal corrugation; the edge restraining members (2) are positioned on the left side and the right side of the buckling-free corrugated steel plate (1), and the edge restraining members (2) are arranged on the left side and the right side, and are welded with connecting end plates (4) respectively from top to bottom to form a frame.

2. A corrugated steel sheet-lead composite member as claimed in claim 1, wherein: the lead damper (3) is a lead block; the lead is placed between the edge restraining member (2) and the lead clamp (5) to form a composite dual function member.

3. A corrugated steel sheet-lead composite member as claimed in claim 1, wherein: the connecting end plates (4) are positioned at the upper side and the lower side of the corrugated steel plate (1) and the edge restraining member (2).

4. A corrugated steel sheet-lead composite member as claimed in claim 1, wherein: the lead block clamp (5) consists of an end plate (51) and two clamping plates (52), and the two clamping plates (52) are welded on the end.

5. A corrugated steel sheet-lead composite member as claimed in claim 1, wherein: the lead block clamp (5) is welded on the connecting end plate (4), and the two clamping plates (52) of the lead block clamp (5) are respectively welded with the lead dampers (3) welded on the two sides of the web plate of the edge constraint component (2).