Fabricated steel plate and recycled concrete composite wall with energy dissipation and shock absorption functions

Abstract

The utility model discloses a fabricated steel plate recycled concrete composite wall with energy dissipation and shock absorption functions, which comprises a steel frame, the top end of the steel frame is connected with an upper wall body, the bottom end of the steel frame is connected with a lower wall body, and an energy dissipation layer unit is arranged between the upper wall body and the lower wall body. According to the assembly type steel plate recycled concrete composite wall with the energy dissipation and shock absorption functions, the wall body is modularized, manufacturing and transportation are facilitated, and meanwhile the hoisting difficulty in the construction process is lowered. The energy dissipation layer is arranged between the wall bodies, and when a small and medium-sized earthquake occurs, the energy dissipation layer support is squeezed and shaken with the soft steel rings, the springs and the SMA rods through the mass blocks to absorb earthquake energy; after a large earthquake occurs, the two sides of the wall body bear the gravity load of the main wall body, the energy consumption layer can assist in cushioning conveniently, if the energy consumption layer is damaged in the earthquake, the energy consumption layer can be detached and replaced again, and sufficient time is provided for maintenance and first-aid repair of workers.

Description

Technical Field

[0001] The utility model belongs to the technical field of assembled buildings, and in particular relates to an assembled steel plate recycled concrete composite wall with energy dissipation and shock absorption functions. Background Art

[0002] With the improvement of people's awareness of earthquake hazards, people's requirements for the seismic performance of building structures are also constantly increasing. Traditional building structures are difficult to meet the requirements under high-intensity earthquakes, so more effective technical means are needed to improve the seismic performance of buildings. The design of the wall plays a vital role in the overall seismic performance of the structure. When encountering an earthquake, the walls of the building are usually severely damaged, which seriously affects the use function of the building structure, and the direct and indirect losses are huge. In this context, people began to put forward higher requirements for the seismic performance of buildings. When encountering an earthquake, the various functions of the structure can continue to be maintained at a high level as much as possible, and it is hoped that the structure can quickly recover to the pre-earthquake level after the earthquake, reducing the impact of the earthquake on people's lives. During an earthquake, cracks are prone to appear in the walls of the building, affecting the stability and safety of the entire structure, and the wall has poor energy dissipation capacity, is difficult to repair after damage, and has poor recoverability after the earthquake. Utility Model Content

[0003] The utility model aims to provide an assembled steel plate recycled concrete composite wall with energy dissipation and shock absorption functions, which solves the problem of poor energy dissipation capacity of the wall in the prior art.

[0004] The technical solution adopted by the utility model is an assembled steel plate recycled concrete composite wall with energy dissipation and shock absorption function, comprising a steel frame, the top end of the steel frame is connected to an upper wall, the bottom end of the steel frame is connected to a lower wall, and an energy dissipation layer unit is arranged between the upper wall and the lower wall.

[0005] The first technical solution of the utility model is also characterized in that:

[0006] The energy-absorbing layer unit comprises a hollow rectangular energy-absorbing layer bearing groove, the bottom of which is connected with a lower steel plate of the energy-absorbing layer, an energy-absorbing layer spring is arranged between the energy-absorbing layer bearing groove and the lower steel plate of the energy-absorbing layer, and the lower steel plate of the energy-absorbing layer is connected with the lower wall by bolts.

[0007] The bottom of the energy-consuming layer bearing groove and the top of the lower steel plate are both provided with protruding parts, and the two ends of the energy-consuming layer spring are respectively sleeved on the bottom of the energy-consuming layer bearing groove and the protruding parts on the top of the lower steel plate.

[0008] A mass block is arranged at the bottom of the energy-consuming layer bearing groove.

[0009] The energy-consuming layer bearing groove is connected with the lower steel plate of the energy-consuming layer through a plurality of SMA rods.

[0010] The side walls of the energy dissipation layer bearing groove are symmetrically bolted with soft steel rings.

[0011] The steel frame is a T-shaped structure, a groove is provided in the horizontal part of the steel frame, and a convex first slot is provided in the vertical part of the steel frame; the upper wall is concave in shape, the lower wall is convex in shape, and the side walls of the upper wall and the lower wall are provided with a second slot that matches the first slot.

[0012] The upper wall and the lower wall are provided with a plurality of through holes, the upper wall and the lower wall are connected by a soft steel connector, and the lower wall and the steel frame are connected by bolts.

[0013] The first slot is filled with elastic material.

[0014] The upper wall and the outer wall of the lower wall are connected together with a protection plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] (1) The utility model provides an assembled steel plate recycled concrete composite wall with energy absorption and shock absorption function. The wall is modularized, which is convenient for manufacturing and transportation, and reduces the difficulty of hoisting during construction. An energy absorption layer is set between the walls. When a small or medium-sized earthquake occurs, the energy absorption layer supports the mutual squeezing and shaking between the mass block and the soft steel ring, spring, and SMA rod to absorb the earthquake energy. After a large earthquake occurs, both sides of the wall bear the main wall gravity load, which is convenient for the energy absorption layer to assist in shock absorption. If the energy absorption layer is damaged in the earthquake, it can also be disassembled and replaced, providing sufficient time for the staff to maintain and repair.

[0017] (2) The utility model provides an assembled steel plate recycled concrete composite wall with energy dissipation and shock absorption function. The energy dissipation layer is mainly composed of a soft steel ring, a mass block, a high-strength spring and an SMA rod, which can evenly share the bearing capacity. The four corners of the lower steel plate are respectively connected to four SMA rods. When the mass block tilts, the super-strong tension of the SMA rod can be used to enable it to have a certain self-reset function, and at the same time, it can evenly transfer the external load to the lower wall; the upper and lower walls are connected by a soft steel connector to avoid excessive deformation and displacement at the connection.

[0018] (3) The utility model provides an assembled steel plate recycled concrete composite wall with energy dissipation and shock absorption function. The size, shape and position of the energy dissipation layer can be adjusted according to actual conditions. This structure is easy to transport and construct, has clear force, reliable force transmission, and has the characteristics of rapid shock absorption and energy dissipation when encountering earthquakes. It solves the problems of poor energy dissipation capacity of traditional walls and severe damage caused by earthquakes that is difficult to repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model of an assembled steel plate recycled concrete composite wall with energy dissipation and shock absorption function;

[0020] Figure 2 It is a schematic diagram of the overall structure of the assembled steel plate recycled concrete composite wall with energy dissipation and shock absorption function of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the mild steel connector of the utility model;

[0022] Figure 4 It is a schematic diagram of the connection between the upper and lower walls and the energy-consuming layer bearing groove of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the energy-consuming layer bearing groove of the utility model;

[0024] Figure 6 It is a structural schematic diagram of the steel frame of the utility model;

[0025] Figure 7 It is a filling schematic diagram of the steel frame filled with elastic material according to the utility model.

[0026] In the figure, 1. upper wall; 2. lower wall; 3. energy-absorbing layer bearing groove; 4. energy-absorbing layer spring; 5. mass block; 6. lower steel plate; 7. SMA rod; 8. soft steel ring; 9. soft steel connector; 10. steel frame; 11. elastic material; 12. protection plate; 13. first slot. DETAILED DESCRIPTION

[0027] The utility model is described in detail below with reference to the accompanying drawings and specific implementation modes.

[0028] The utility model provides an assembled steel plate recycled concrete composite wall with energy dissipation and shock absorption functions, such as Figure 1 and Figure 2 As shown, it includes an upper wall 1, a lower wall 2 and a steel frame 10. Figure 6 As shown, the steel frame is a T-shaped structure, and the horizontal part is a groove for placing the lower wall 2. The steel frame 10 is connected to the lower wall 2 by bolts. The side walls of the upper wall 1 and the lower wall 2 are provided with a second slot, which is adapted to connect with the first slot 13 provided in the vertical part of the steel frame 10. The size of the reserved groove is relatively large. The protruding parts on both sides of the lower wall are slightly larger, so that the wall can produce a small displacement inside the frame when subjected to an earthquake, avoiding compressive shear damage at the connection between the wall and the frame. Figure 7 As shown, the inner wall of the first slot 13 is filled with elastic material 11 to improve the energy dissipation performance of the connection between the wall and the frame; an energy dissipation layer unit is provided between the upper wall 1 and the lower wall 2.

[0029] The upper wall 1 is concave, the lower wall 2 is convex, and both the upper wall 1 and the lower wall 2 are hollow steel plate walls. Figure 3As shown, holes are reserved in the upper wall 1 and the lower wall 2, and they are connected by a mild steel connector 9. The mild steel connector 9 is made of mild steel sheets, and bolt holes are reserved at both ends, which can withstand the slight displacement between the walls, and at the same time limit the forward and backward movement of the mass block 5 caused by the earthquake, which not only strengthens the integrity between the walls, but also makes the energy-consuming layer have a certain self-reset effect, avoiding the damage of the wall caused by the excessive shaking of the mass block. The outer walls of the upper wall 1 and the lower wall 2 are connected together with a protective plate 12, which can achieve the effects of heat preservation, sound insulation and protection of the shock-absorbing wall body.

[0030] like Figure 4 and Figure 5 As shown, the energy-consuming layer unit includes an energy-consuming layer bearing groove 3 in a hollow rectangular shape, and the four corners of the bottom of the energy-consuming layer bearing groove 3 are connected to the energy-consuming layer lower steel plate 6 through four SMA rods. The four SMA rings 7 and the energy-consuming layer spring 4 are installed to give a certain prestress in advance, so that the device is always in a tensile state, increasing the self-resetting ability of the structure. The bottom of the energy-consuming layer bearing groove 3 and the top of the lower steel plate 6 are both provided with protruding parts, and the two ends of the energy-consuming layer spring 4 are respectively sleeved on the bottom of the energy-consuming layer bearing groove 3 and the protruding parts on the top of the lower steel plate 6, and the energy-consuming layer lower steel plate 6 is connected to the lower wall 2 by bolts.

[0031] The mass block 5 is placed in the energy dissipation layer groove 3 to prevent a large displacement due to earthquake. The two side walls of the energy dissipation layer groove 3 are symmetrically bolted with soft steel rings 8 to consume transverse seismic waves.

[0032] The assembled steel plate recycled concrete composite wall with energy dissipation and shock absorption function provided by the utility model is specifically implemented as follows: during the installation of the wall, the lower wall 2 is first inserted into the steel frame 10 through the groove reserved at the lower part, aligned with the frame connection, and the bottom of the lower wall 2 is connected to the steel frame 10 using high-strength bolts; then the energy-consuming layer unit is placed on the protruding platform on the lower wall 2, connected by bolts, and then the upper wall 1 is inserted into the steel frame 10, and the soft steel connectors 9 are inserted into the hollows on the front and rear sides of the upper and lower walls, and the bolts are inserted into the bolt holes reserved at both ends of the soft steel connector 9, and finally the green recycled concrete is poured into the wall through the concrete pouring holes reserved on the upper and lower steel plate walls, and the protective plates 12 are attached to both sides of the wall.

[0033] Example 1

[0034] This embodiment provides an assembled steel plate recycled concrete composite wall with energy dissipation and shock absorption functions, such as Figure 1-7As shown, it includes a steel frame 10, the top of the steel frame 10 is connected to an upper wall 1, the bottom of the steel frame 10 is connected to a lower wall 2, and an energy-consuming layer unit is arranged between the upper wall 1 and the lower wall 2. The energy-consuming layer unit includes a hollow rectangular energy-consuming layer bearing groove 3, the bottom of the energy-consuming layer bearing groove 3 is connected to an energy-consuming layer lower steel plate 6, an energy-consuming layer spring 4 is arranged between the energy-consuming layer bearing groove 3 and the energy-consuming layer lower steel plate 6, and the energy-consuming layer lower steel plate 6 is connected to the lower wall 2 by bolts.

[0035] Example 2

[0036] On the basis of Example 1, Figure 1-7 As shown, the bottom of the energy-absorbing layer groove 3 and the top of the lower steel plate 6 are both provided with protruding parts, the two ends of the energy-absorbing layer spring 4 are respectively sleeved on the bottom of the energy-absorbing layer groove 3 and the protruding parts of the top of the lower steel plate 6, a mass block 5 is provided in the bottom of the energy-absorbing layer groove 3, the energy-absorbing layer groove 3 and the lower steel plate 6 of the energy-absorbing layer are connected by multiple SMA rods 7, and the side walls of the energy-absorbing layer groove 3 are symmetrically bolted with soft steel rings 8.

[0037] Example 3

[0038] On the basis of Example 2, Figure 1-7 As shown, the steel frame 10 is a T-shaped structure, a groove is provided in the horizontal portion of the steel frame 10, and a convex first slot 13 is provided in the vertical portion of the steel frame 10; the upper wall 1 is concave, and the lower wall 2 is convex, and the side walls of the upper wall 1 and the lower wall 2 are provided with a second slot adapted to the first slot 13, and the upper wall 1 and the lower wall 2 are provided with a plurality of through holes, the upper wall 1 and the lower wall 2 are connected by a soft steel connector 9, and the lower wall 2 is connected to the steel frame 10 by bolts, and the first slot 13 is filled with an elastic material 11, and the outer walls of the upper wall 1 and the lower wall 2 are commonly connected with a protective plate 12.

[0039] The assembled steel plate recycled concrete composite wall with energy dissipation and shock absorption function provided by the utility model will vibrate slightly under the action of a small earthquake, causing the mass block 5 to shake slightly. The earthquake energy is converted into each other through the reciprocating stretching of the energy dissipation layer spring 4, and is completely usable after the earthquake.

[0040] Under the action of a larger earthquake, the earthquake overcomes the initial resistance, causing the structure to vibrate to a certain amplitude. The shaking of the wall causes the mass block 5 to swing up and down and left and right. The up and down shaking converts the earthquake energy into spring potential energy through the reciprocating motion of the energy-consuming layer spring 4; the left and right shaking converts the earthquake energy into elastic potential energy consumption of the soft steel ring 8 through the soft steel ring 8 connected on both sides of the energy-consuming layer bearing groove and the mutual compression and collision between the upper wall 1; at the same time, the elastic material 11 is filled between the wall and the steel frame 10, which can also reduce the damage caused by the earthquake to the wall connection. Most of the earthquake energy is consumed by the energy-consuming layer spring 4, and the wall and the steel frame 10 rub against each other through the pre-filled elastic material 11, and consume energy through material properties. When the mass block 5 produces a certain lateral displacement, the left and right sides can be restored to their original positions through the elasticity of the SMA rod 7, and the front and back sides can be bound by the soft steel connector 9 between the walls, which can also make the mass block 5 return to its original position in a short time.

Claims

1. The assembled steel plate recycled concrete composite wall with energy dissipation and shock absorption function is characterized by: The invention comprises a steel frame (10), wherein the top end of the steel frame (10) is connected to an upper wall (1), the bottom end of the steel frame (10) is connected to a lower wall (2), and an energy-consuming layer unit is arranged between the upper wall (1) and the lower wall (2); the energy-consuming layer unit comprises an energy-consuming layer bearing groove (3) in a hollow rectangular shape, the bottom of the energy-consuming layer bearing groove (3) is connected to an energy-consuming layer lower steel plate (6), an energy-consuming layer spring (4) is arranged between the energy-consuming layer bearing groove (3) and the energy-consuming layer lower steel plate (6), and the energy-consuming layer lower steel plate (6) is connected to the lower wall (2) by bolts; the bottom of the energy-absorbing layer bearing groove (3) and the top of the lower steel plate (6) are both provided with protruding parts, and the two ends of the energy-absorbing layer spring (4) are respectively sleeved on the bottom of the energy-absorbing layer bearing groove (3) and the protruding parts of the top of the lower steel plate (6); a mass block (5) is provided in the bottom of the energy-absorbing layer bearing groove (3); the energy-absorbing layer bearing groove (3) and the lower steel plate (6) of the energy-absorbing layer are connected by a plurality of SMA rods (7); and the side walls of the energy-absorbing layer bearing groove (3) are symmetrically bolted with soft steel rings (8).

2. The assembled steel plate recycled concrete composite wall with energy dissipation and shock absorption function according to claim 1 is characterized in that: The steel frame (10) is in a T-shaped structure, a groove is provided in the transverse portion of the steel frame (10), and a convex first slot (13) is provided in the vertical portion of the steel frame (10); the upper wall (1) is in a concave shape, the lower wall (2) is in a convex shape, and the side walls of the upper wall (1) and the lower wall (2) are both provided with a second slot adapted to the first slot (13).

3. The assembled steel plate recycled concrete composite wall with energy dissipation and shock absorption function according to claim 2 is characterized in that: The upper wall (1) and the lower wall (2) are provided with a plurality of through holes. The upper wall (1) and the lower wall (2) are connected via a soft steel connector (9), and the lower wall (2) and the steel frame (10) are connected via bolts.

4. The assembled steel plate recycled concrete composite wall with energy dissipation and shock absorption function according to claim 2 is characterized in that: The first slot (13) is filled with elastic material (11).

5. The assembled steel plate recycled concrete composite wall with energy dissipation and shock absorption function according to claim 2 is characterized in that: The outer walls of the upper wall (1) and the lower wall (2) are commonly connected with a protective plate (12).

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