Energy consumption enhanced fabricated shear wall structure and mounting method thereof

Abstract

The invention belongs to the technical field of fabricated buildings, and particularly relates to an energy consumption enhanced fabricated shear wall structure and a mounting method thereof. The shear wall structure comprises a plurality of shear wall units. In the vertical direction, each shear wall unit is provided with a plurality of opening units; the number of the shear wall units is odd, and X-shaped metal pieces are installed in the opening units of the even shear wall units. First friction strips are wound in the opening units on the shear wall units and at the same horizontal height; the X-shaped metal piece connects the two first friction strips to form a winding and binding crossed area; transverse stress plates are arranged on the upper portions and the lower portions of the two side faces in the thickness direction of the wall, and slidable stress plates are connected to the outer sides of the transverse stress plates in a sliding mode. A plurality of second friction strips are connected in the slidable stress plate; connecting short beams are connected between the two opposite side walls of every two adjacent shear wall units. The problem that the anti-seismic property of the fabricated concrete shear wall needs to be enhanced is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of prefabricated buildings, and in particular relates to an energy-absorbing and enhanced prefabricated shear wall structure and an installation method thereof. Background Art

[0002] In recent years, prefabricated building structures have been widely used in the field of construction engineering due to their advantages such as fast construction speed, controllable quality, and low environmental pollution. Among them, prefabricated concrete shear walls are the main lateral force-resistant components, and their seismic performance directly affects the safety and reliability of building structures. Although traditional cast-in-place concrete shear walls have good integrity and seismic performance, they have problems such as long construction period, difficult quality control, and high environmental pollution. The existing prefabricated concrete shear walls mostly use rigid connection methods for their connection nodes. Although they can ensure the integrity of the structure, they are prone to brittle failure under earthquakes, have limited energy consumption capacity, and are difficult to meet the seismic requirements of high-intensity earthquake zones.

[0003] In order to improve the seismic performance of prefabricated concrete shear walls, researchers have proposed a variety of improvement plans, such as installing dampers in the wall and using prestressed connections. However, these methods often have problems such as excessive thickness of the shear wall, difficulty in construction, and high cost, making them difficult to promote and apply in actual projects.

[0004] In summary, the seismic performance of existing prefabricated concrete shear walls needs to be strengthened. Summary of the invention

[0005] The purpose of the present invention is to provide an energy-absorbing and enhanced assembled shear wall structure and an installation method thereof, so as to solve the problem that the seismic performance of the assembled concrete shear wall needs to be strengthened.

[0006] The present invention is achieved through the following technical solutions: An energy-absorbing and enhanced assembled shear wall structure includes a plurality of shear wall units; in the vertical direction, each shear wall unit is provided with a plurality of opening units; The total number of shear wall units is an odd number, wherein an X-shaped metal piece is installed in the opening unit of the even-numbered shear wall units; the even-numbered shear wall units and the adjacent shear wall units form a group of connection units in total of three pieces; A first friction strip is wound in the opening unit on the shear wall unit and located at the same horizontal height; an X-shaped metal piece connects two first friction strips to form a winding and binding cross area; A transverse force-bearing plate is provided at the upper and lower parts of the two side surfaces in the thickness direction of the wall, and a slidable force-bearing plate is slidably connected to the outer side of the transverse force-bearing plate; a plurality of second friction strips arranged vertically are connected to the slidable force-bearing plate; A connecting short beam is connected between two opposite side walls of two adjacent shear wall units.

[0007] Furthermore, overhead support plates are vertically arranged on the two end faces of the shear wall unit in the thickness direction of the wall body near the opening unit, so as to form a gap between a portion of the first friction strip and the shear wall unit.

[0008] Furthermore, a first force-bearing screw is arranged in the opening unit and along the wall thickness direction of the shear wall unit, and both ends of the first force-bearing screw are connected with vertical force-bearing plates; The transverse force-bearing plate is arranged at the upper end and the lower end of the vertical force-bearing plate, and a slideway is arranged on the end surface of the transverse force-bearing plate, and the slidable force-bearing plate is slidably connected to the outer side of the slideway; The first force-bearing screw rod passes through the two limiting steel plates, and the two limiting steel plates are clamped in the opening unit and connected by tension bolts.

[0009] Furthermore, a first fixing member is arranged on the outer side of the slidable force-bearing plate located on the lower side; end fixing plates are arranged on the two ends of the transverse force-bearing plate located on the lower side; and a first self-resetting tension-compression energy-absorbing damper is connected between the end fixing plate and the first fixing member.

[0010] Furthermore, a plurality of first connecting springs are arranged below the slidable force-bearing plate on the lower side, and a weight block is connected below the first connecting springs.

[0011] Furthermore, first fixing members are provided on the outer sides of the slidable force-bearing plates located on the upper and lower sides; end fixing plates are provided at both ends of the transverse force-bearing plates located on the upper and lower sides; and a first self-resetting tension-compression energy-absorbing damper is connected between the end fixing plates and the first fixing members.

[0012] Furthermore, a first force-bearing connecting plate is also provided in the opening unit of the shear wall unit provided with the X-shaped metal member, the first force-bearing connecting plate extends into the shear wall unit, and the other end of the first force-bearing connecting plate is connected to a torsion spring portion; The torsion spring part comprises a torsion spring and a roller, the torsion spring is detachably connected to the first force-bearing connecting plate, the extended end of the torsion spring is connected to the roller, and the roller abuts against the inner side of the first friction strip; A ratchet tensioner is installed at one end of the first friction strip for tightening the first friction strip.

[0013] Furthermore, a first arc-shaped stress-bearing layer and a second arc-shaped stress-bearing layer are arranged between two opposite side walls of two adjacent shear wall units; the first arc-shaped stress-bearing layer is installed between the two second arc-shaped stress-bearing layers to form a staggered connection; The first arc-shaped stress-bearing layer and the second arc-shaped stress-bearing layer abut against each other, and the bottom end of the first arc-shaped stress-bearing layer is buried in the shear wall unit; The upper end of the second curved stress-bearing layer located at the uppermost side and the lower end of the second curved stress-bearing layer located at the lowermost side are fixedly connected to the shear wall unit, and the shear wall unit is provided with two first sliding grooves on the side close to the second curved stress-bearing layer, and the first sliding grooves are slidably connected with the first slider, and the first slider is connected to the edge of the second curved stress-bearing layer; A second self-resetting tension-compression energy dissipation damper is connected to the side of the second arc-shaped stress-bearing layer of the connecting short beam near the middle of the height of the shear wall unit, and the other end of the second self-resetting tension-compression energy dissipation damper is fixedly connected to the end face of the connecting short beam.

[0014] Furthermore, a plurality of side wall layers are arranged in the first arc-shaped stress-bearing layer, friction discs are arranged between the side wall layers, and the plurality of friction discs are connected in series; A first long groove is arranged in the middle of the second arc-shaped stress-bearing layer, a second long groove is arranged in the middle of the first arc-shaped stress-bearing layer, a second fixing part is arranged on the side of the shear wall unit with the second arc-shaped stress-bearing layer, the second fixing part is hinged with a second connecting spring, the other end of the second connecting spring is connected to a connecting rod, the other end of the connecting rod is connected to a friction disk, and a plurality of friction disks are pulled by the connecting rod to rotate synchronously around the side wall layer.

[0015] The present invention also discloses a method for installing the energy-dissipating enhanced assembled shear wall structure, which includes the following steps: Install multiple shear wall units at predetermined locations on site, and then install connecting short beams; Install X-shaped metal parts in the opening units of the even-numbered shear wall units; The first friction strip is wound around two opening units at the same horizontal height, and an X-shaped metal piece is connected to both ends of the first friction strip. During the connection, the first friction strip is tightened to form a winding and binding cross area at the X-shaped metal piece, so that the even-numbered shear wall unit and the adjacent shear wall unit form a group of three connected units; When multiple shear wall units are connected into an integral structure, transverse load-bearing plates are installed on the upper and lower parts of the two side surfaces in the wall thickness direction, slidable load-bearing plates are installed on the transverse load-bearing plates, and second friction strips are installed in the slidable load-bearing plates.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects: The present invention discloses an energy-dissipating enhanced assembled shear wall structure, comprising a plurality of shear wall units, a plurality of opening units being provided on each shear wall unit, and a first friction strip being wound in the opening units at the same horizontal height, a total of three shear wall units connected to the front and rear sides of the even-numbered shear wall units forming a group of connection units, and a winding and binding cross region being formed in the second shear wall unit of each group of connection units, i.e., the even-numbered shear wall unit. When the shear wall structure is subjected to shear deformation by earthquake force, the first friction strip consumes external forces such as earthquake energy by friction energy dissipation, thereby reducing the vibration response of the structure. An X-shaped metal piece is installed in the opening unit of the even-numbered shear wall unit, which connects the two first friction strips to form a cross ring body, thereby enhancing the stability of the first friction strip and making the friction energy dissipation mechanism more stable and reliable. Transverse load-bearing plates are arranged at the upper and lower parts of the two side surfaces in the wall thickness direction, and a slidable load-bearing plate is slidably connected to the outer side of the transverse load-bearing plate, and a plurality of second friction strips arranged in parallel along the vertical direction are connected in the slidable load-bearing plate. When the shear wall structure undergoes shear deformation, the slidable load-bearing plate will slide relative to the transverse load-bearing plate, and the second friction strip and the first friction strip will frictionally dissipate the seismic energy, while also limiting the shear deformation of the shear wall and improving the seismic performance of the structure. Through the connection between the first friction strip and the X-shaped metal piece, the cooperative working ability of the shear wall units in each group of connection units is enhanced, and the integrity of the structure in the plane is improved. Transverse load-bearing plates are arranged at the upper and lower parts of the two side surfaces in the wall thickness direction, and are connected by slidable load-bearing plates, so that multiple shear wall units can also better cooperate in the vertical direction, and the integrity of the structure in space is enhanced. A connecting short beam is connected between the two opposite side walls of two adjacent shear wall units, which further strengthens the connection between adjacent shear wall units, improves the overall stability of the structure, and enables the structure to more effectively resist horizontal and vertical loads. By enhancing the energy dissipation capacity and improving the integrity of the structure, the assembled shear wall structure can better dissipate energy under earthquake action, reduce the seismic response of the structure, and reduce the possibility of structural damage, thereby improving the seismic performance of the structure and protecting the safety of personnel and equipment in the building. The shear wall structure of the present invention is an assembled structure, and each component can be prefabricated in a factory and then transported to the site for assembly. The assembled construction method can reduce on-site construction costs, improve construction efficiency, and shorten the construction period. Due to the improved energy dissipation capacity and seismic performance of the structure, the cost of repair and reconstruction after disasters such as earthquakes can be reduced.

[0017] Furthermore, a first force-bearing connecting plate is also provided in the opening unit of the shear wall unit provided with the X-shaped metal part. The first force-bearing connecting plate extends into the shear wall unit. The other end of the first force-bearing connecting plate is connected to a torsion spring part. The design of the torsion spring part makes it possible for the first friction strip to become relaxed when the shear wall undergoes lateral deformation during an earthquake. The first friction strip can be tightened again by the torsion spring part to ensure that the first friction strip and the second friction strip can continue to work.

[0018] Furthermore, a first arc-shaped stress-bearing layer and a second arc-shaped stress-bearing layer are arranged between two opposite side walls of two adjacent shear wall units; the shear wall will undergo shear deformation during an earthquake, and the first arc-shaped stress-bearing layer and the second arc-shaped stress-bearing layer will squeeze each other, causing the second arc-shaped stress-bearing layer to be squeezed and deformed, and the point where the second arc-shaped stress-bearing layer is connected to the first slider will slip on the first slide groove, and the connecting rod may abut against the end of the first long groove, causing the friction plate to rotate, thereby causing the friction plate and the side wall layer to dissipate energy by friction.

[0019] Furthermore, a second self-resetting tension-compression energy-absorbing damper is connected to the side of the second curved stress-bearing layer of the connecting short beam near the middle of the height of the shear wall unit. Once the second curved stress-bearing layer begins to deform and move, the second self-resetting tension-compression energy-absorbing damper is stretched or compressed, and the second self-resetting tension-compression energy-absorbing damper also dissipates energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of an energy-absorbing and enhanced assembled shear wall structure of the present invention; Figure 2 for Figure 1 A top view of Figure 3 for Figure 1 The main view of Figure 4 It is a schematic diagram of the connection relationship between the first friction strip and the three shear wall units; Figure 5 is a schematic diagram of the positional relationship between the X-shaped metal part and the first force-bearing screw; Figure 6 is a schematic diagram of the positional relationship between the first force-bearing screw and the shear wall unit; Figure 7 is a schematic diagram of the positional relationship between the slidable force-bearing plate and the second friction strip; Figure 8 for Figure 7 Another perspective of Fig. 9 It is a schematic diagram of the connection relationship between the first friction strip and the five shear wall units; Fig.10 Schematic diagram of the position relationship between shear wall units; Fig.11It is a schematic diagram of the structure of node A; Fig.12 Schematic diagram of the positional relationship between the first arc-shaped stress-bearing layer and the second arc-shaped stress-bearing layer; Fig.13 for Fig.12 Another perspective of Fig.14 For Figure 1 Another structural diagram of transformation based on .

[0021] In the figure, 1, shear wall unit; 11, opening unit; 12, first friction strip; 13, second friction strip; 14, top stress reinforcement; 15, first arc stress layer; 16, first self-resetting tension and compression energy-absorbing damper; 17, transverse stress plate; 18, end fixing plate; 19, first stress screw; 20, ratchet tensioner; 21, slidable stress plate; 22, first fixing piece; 23, overhead support plate; 24, X-shaped metal piece; 25, first connecting splint; 26, transition connection sleeve; 27, outer limit steel plate; 271, Inner limiting steel plate; 272, tightening bolt; 28, vertical force plate; 29, slideway; 30, second connecting clamp; 31, first connecting spring; 32, weight block; 33, second arc-shaped force layer; 34, first force connecting plate; 35, torsion spring part; 36, connecting short beam; 37, first slide groove; 38, second self-resetting tension-compression energy-absorbing damper; 39, first long groove; 40, first slider; 41, second fixing piece; 42, second connecting spring; 43, connecting rod; 44, side wall layer; 45, second long groove; 46, friction plate. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention more clear, the following is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention, that is, the embodiments described are only part of the embodiments of the present invention, not all embodiments.

[0023] The components described and shown in the drawings and embodiments of the present invention may be arranged and designed in various configurations. Therefore, the detailed description of the embodiments of the present invention provided in the following drawings is not intended to limit the scope of the claimed invention, but merely represents a selected embodiment of the present invention. Based on the drawings and embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0024] It should be noted that the terms "comprises", "includes" or any other variants are intended to cover non-exclusive inclusion, so that a process, element, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to the process, element, method, article or device. In addition, the terms "horizontal" and "vertical" are based on the orientation and positional relationship of the devices or components shown in the drawings, and are only for the purpose of better describing the present invention, rather than requiring the devices, components or equipment shown to have this specific orientation, and therefore cannot be understood as limiting the present invention.

[0025] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0026] like Figure 1-Figure 3 As shown, the present invention discloses an energy-absorbing and enhanced assembled shear wall structure, including a plurality of shear wall units 1, wherein the shear wall units 1 are provided with top stress-bearing steel bars 14 at the upper and lower ends, and the top stress-bearing steel bars 14 are used for anchoring and connecting with other shear walls or other structural members at the vertical height of the building. The shear wall of the present invention is fixedly connected with the structural beam or structural column in the span direction.

[0027] "Energy-enhanced type" in energy-enhanced prefabricated shear wall structure means that through certain technical means and structural measures, the structure can consume energy more effectively and enhance the energy-absorbing capacity of the structure when resisting external forces such as earthquakes.

[0028] like Figure 1-Figure 4 As shown, along the vertical direction, a plurality of opening units 11 are provided on the shear wall unit 1, and the opening units 11 are rectangular.

[0029] A first friction strip 12 is provided between the opening units 11 of two adjacent shear wall units 1 that are located at the same level, and the two first friction strips 12 bind the three shear wall units 1 together by winding.

[0030] Generally, the area of ​​the shear wall unit 1 that needs to be connected to the first friction strip 12 should be chamfered to avoid wearing of the first friction strip 12 .

[0031] Figure 4 The position of the opening unit 11 is only for reference. The opening position of the opening unit 11 in the transverse direction of the shear wall unit 1 can be at the center or slightly offset, which is specifically designed according to the on-site working conditions.

[0032] like Figure 4 and Figure 5As shown, the first friction strip 12 is provided with an X-shaped metal piece 24 in the winding and binding intersection area, and the four ends of the X-shaped metal piece 24 are installed with first connecting clamps 25. The X-shaped metal piece 24 is fixedly connected to the first friction strip 12 with rivets through the first connecting clamps 25.

[0033] The shear wall unit 1 is vertically provided with an overhead support plate 23 on the two end faces in the wall thickness direction near the opening unit 11. The overhead support plate 23 is installed by pre-embedded method when the shear wall unit 1 is manufactured in the factory. There are many specific pre-embedded connection methods, which should be known to people in this field. Only one feasible method is given here: the overhead support plate 23 is a vertical metal steel plate, and a plurality of shear connectors are welded on both sides of the area of ​​the overhead support plate 23 close to the shear wall unit 1, and the part of the overhead support plate 23 welded with the shear connector is embedded in the shear wall unit 1.

[0034] The function of the overhead support plate 23 is to form a gap between part of the first friction strip 12 and the shear wall unit 1 , so that part of the first friction strip 12 is parallel to the end surface of the shear wall unit 1 .

[0035] like Figure 5 As shown, a first force-bearing screw 19 is arranged in the shear wall unit 1 in the wall thickness direction inside the opening unit 11, and a transition connection sleeve 26 is connected to the outside of the first force-bearing screw 19. The transition connection sleeve 26 passes through the X-shaped metal part 24, and the transition connection sleeve 26 is used to ensure the connection stability between the X-shaped metal part 24 and the first force-bearing screw 19.

[0036] like Figure 1 and Figure 6 As shown, all the first force-bearing screws 19 installed in the opening unit 11 on each shear wall unit 1 are connected together to a vertical force-bearing plate 28, and transverse force-bearing plates 17 are provided at the upper and lower ends of all the vertical force-bearing plates 28. A slide 29 is provided on the end surface of the transverse force-bearing plate 17 away from or close to the shear wall unit 1. The slide 29 is a dovetail type, and a slidable force plate 21 is slidably connected to the outer side of the slide 29, and a first fixing member 22 is provided on the outer side of the slidable force plate 21.

[0037] like Figure 7 and Figure 8 As shown, end fixing plates 18 are provided at the two ends of the transverse force-bearing plate 17, and a first self-resetting tension-compression energy-absorbing damper 16 is provided at the end of the end fixing plate 18 close to the transverse force-bearing plate 17, and the other end of the first self-resetting tension-compression energy-absorbing damper 16 is fixedly connected to the first fixing member 22; the upper and lower transverse force-bearing plates 17 are provided with second connecting splints 30 on the sides close to each other, and a plurality of second friction strips 13 arranged vertically in parallel are connected inside the second connecting splints 30 by rivets.

[0038] like Figure 1 and Figure 8 As shown, a slidable load-bearing plate 21 is arranged on the transverse load-bearing plate 17, and the slidable load-bearing plates 21 on the upper and lower transverse load-bearing plates 17 can slide on the transverse load-bearing plate 17. In an earthquake, the shear wall as a whole will undergo shear deformation, and the two slidable load-bearing plates 21 will slide together on the transverse load-bearing plate 17 (moving at the same speed or at different speeds in the same direction). During this process, the first friction strip 12 and the second friction strip 13 will dissipate a large amount of energy by friction; during this process, the first self-resetting tension-compression energy-absorbing damper 16 will also dissipate energy, and finally the two slidable load-bearing plates 21 will return to their original positions. This structure is suitable for shear walls with relatively small height spans, that is, when the ratio of shear wall height / shear wall span is small.

[0039] In other alternative embodiments, Fig.14 As shown, the two ends of the upper transverse force plate 17 do not need to be provided with end fixing plates 18, the first self-resetting tension-compression energy-absorbing damper 16 and the first fixing member 22. A slidable force plate 21 is installed on the transverse force plate 17, and the slidable force plate 21 on the upper transverse force plate 17 is locked with the transverse force plate 17, that is, the upper slidable force plate 21 cannot slide; the slidable force plate 21 on the lower transverse force plate 17 can slide with the transverse force plate 17. During an earthquake, the shear wall will undergo shear deformation as a whole, and the lower slidable force plate 21 will slide on the transverse force plate 17. At this time, the second friction strip 13 will undergo a pendulum-like motion, and the first friction strip 12 and the second friction strip 13 will dissipate a large amount of energy through friction during the process; in this process, the first self-resetting tension-compression energy-absorbing damper 16 on the lower side will also dissipate energy, and finally the two slidable force plates 21 will return to their original positions. Fig.14 The structure is suitable for shear walls with relatively large height and span, that is, when the ratio of shear wall height / shear wall span is large.

[0040] Specifically, the first friction strip 12 and the second friction strip 13 are made of a high-elastic alloy material and are provided with a rubber jacket on the outside. This arrangement not only ensures the elasticity, strength and toughness of the first friction strip 12 and the second friction strip 13, but also facilitates the processing of the woven structure and the stretching energy consumption within a smaller deformation range; the alloy material and the rubber jacket of the first friction strip 12 and the second friction strip 13 are chamfered against each other to avoid mutual extrusion and damage due to stress concentration. The high-elastic alloy metal and the high-friction rubber jacket in the first friction strip 12 and the second friction strip 13 are connected by rivets to reduce the slippage between the two.

[0041] like Fig.14As shown, more preferably, a plurality of first connecting springs 31 are arranged below the slidable force plate 21, and a weight block 32 is connected below the first connecting spring 31. The function of the weight block 32 is to increase the sliding frequency of the lower slidable force plate 21 on the transverse force plate 17 during an earthquake, thereby increasing the energy dissipation effect of the braided structure.

[0042] like Figure 6 As shown, the first force-bearing screw 19 is installed through the two limiting steel plates, and the limiting steel plates include an outer limiting steel plate 27 and two inner limiting steel plates 271 vertically connected to the outer limiting steel plate 27. The outer limiting steel plate 27 and the inner limiting steel plate 271 are integrally formed so that they can be clamped on both sides of the opening unit 11. After the outer limiting steel plate 27 and the inner limiting steel plate 271 are clamped on both sides of the opening unit 11, they are connected with tightening bolts 272 to make the distance between the two limiting steel plates constant.

[0043] Specifically, rubber pads should be provided on the contact surfaces between the outer limiting steel plate 27 and the inner limiting steel plate 271 and the shear wall unit 1 to facilitate a smooth connection between the two outer limiting steel plates 27 .

[0044] The outer limiting steel plate 27 is provided with a hole for passing the first force-bearing screw rod 19 and the tensioning bolt 272 .

[0045] The number of shear wall units 1 in the shear wall of the present invention should be an odd number and not less than three. Figure 4 and Fig. 9 As shown, this is because the three shear wall units 1 are connected by a cross-shaped annular first friction strip 12; Fig. 9 As shown, when five shear wall units 1 are connected, the X-shaped metal piece 24 is not placed in the opening unit 11 of the third shear wall unit 1, and the first friction strips 12 in the opening unit 11 of the third shear wall unit 1 are not cross-wound. That is, the opening units 11 of the even-numbered shear wall units 1 are installed with the X-shaped metal piece 24, and the opening units 11 of the odd-numbered shear wall units 1 are not installed with the X-shaped metal piece 24.

[0046] The even-numbered shear wall unit 1 and the two shear wall units 1 before and after the even-numbered shear wall unit 1 are three in total, forming a group of connection units.

[0047] Preferably, Figure 4As shown, the opening unit 11 of the shear wall unit 1 in which the X-shaped metal member 24 is provided in the present invention is also provided with a first force-bearing connecting plate 34, the first force-bearing connecting plate 34 extends into the shear wall unit 1, and the other end of the first force-bearing connecting plate 34 is connected with a torsion spring portion 35, the torsion spring portion 35 includes a torsion spring and a roller, the torsion spring is detachably connected to the first force-bearing connecting plate 34, the protruding end of the torsion spring is connected with a roller, the roller abuts against the inner side of the first friction strip 12, the torsion spring portion 35 needs to be installed after the ratchet tensioner 20 tightens the first friction strip 12, the function of the torsion spring portion 35 is to ensure that when the shear wall of the present invention undergoes shear deformation during an earthquake, when the first friction strip 12 may become a relaxed state, the first friction strip 12 can be tightened again by the torsion spring portion 35, thereby ensuring that the first friction strip 12 and the second friction strip 13 can continue to work.

[0048] The first friction strip 12 and the second friction strip 13 dissipate friction energy. If the first friction strip 12 is partially loose, the friction energy dissipation effect will be reduced.

[0049] The installation method based on the above structure includes the following processes: Install multiple shear wall units 1 at predetermined locations on site, and then install connecting short beams 36; An X-shaped metal piece 24 is installed in the opening unit 11 of the even-numbered shear wall unit 1, and the first friction strip 12 is wound around two adjacent opening units 11 at the same level, and the X-shaped metal piece 24 is connected to both ends of the first friction strip 12. During the connection, the first friction strip 12 is tightened by a ratchet tensioner 20; The transverse force-bearing plate 17 and the slidable force-bearing plate 21 are installed, and the second friction strip 13 is installed in the slidable force-bearing plate 21 .

[0050] In other possible implementations, such as Figure 10-12 As shown, a first arc-shaped stress-bearing layer 15 and a second arc-shaped stress-bearing layer 33 are also arranged between adjacent shear wall units 1. The first arc-shaped stress-bearing layer 15 and the second arc-shaped stress-bearing layer 33 are in contact with each other. The bottom end of the first arc-shaped stress-bearing layer 15 is embedded in the shear wall unit 1. The first arc-shaped stress-bearing layer 15 can also be connected to the shear wall unit 1 through embedded parts, and the upper end of the second arc-shaped stress-bearing layer 33 located on the uppermost side and the lower end of the second arc-shaped stress-bearing layer 33 located on the lowermost side are fixedly connected to the shear wall unit 1 through embedded parts. The shear wall unit 1 is provided with two first slide grooves 37 on the side close to the second arc-shaped stress-bearing layer 33. The first slide groove 37 is a dovetail type. A first slider 40 is slidably connected in the first slide groove 37. The top end of the first slider 40 is connected to an edge of a second arc-shaped stress-bearing layer 33 or an edge at the intersection of two second arc-shaped stress-bearing layers 33.

[0051] like Fig.10As shown, at least one connecting short beam 36 is arranged between adjacent shear wall units 1 at the middle of the height. The connecting short beam 36 is a steel beam, and the connecting short beam 36 is connected to the shear wall unit 1 by embedded parts.

[0052] More preferably, short connecting beams 36 are preferably provided between adjacent shear wall units 1 at the highest and lowest heights. The function of the short connecting beams 36 is to strengthen the connection integrity between the shear wall units 1 .

[0053] like Fig.13 As shown, a plurality of side wall layers 44 are arranged in the first arc-shaped stress-bearing layer 15 , friction discs 46 are arranged between the side wall layers 44 , and the plurality of friction discs 46 are connected in series; a second long groove 45 is arranged in the middle of the first arc-shaped stress-bearing layer 15 .

[0054] like Fig.11 and Fig.12 As shown, a first long groove 39 is provided in the middle of the second arc-shaped stress-bearing layer 33, and a second fixing member 41 is provided on the side of the shear wall unit 1 provided with the second arc-shaped stress-bearing layer 33. The second fixing member 41 is hinged with a second connecting spring 42, and the other end of the second connecting spring 42 is connected to a connecting rod 43, and the other end of the connecting rod 43 is connected to a friction plate 46.

[0055] The friction disc 46 is arranged between the side wall layers 44. The relative surfaces of the friction disc 46 and the side wall layer 44 are both provided with a friction layer. The friction layer can be made of friction rubber. The selection and setting of the friction layer should be set in combination with the overall shear wall of the present invention. The shear deformation of the shear wall unit 1 cannot be significantly reduced, otherwise it will seriously hinder the operation of the first friction strip 12 and the second friction strip 13.

[0056] A plurality of friction discs 46 are connected in series and can be pulled by a connecting rod 43 to rotate synchronously around the side wall layer 44 .

[0057] like Figure 10-11 As shown, the side of the second arc-shaped stress-bearing layer 33 of the connecting short beam 36 closest to the middle of the shear wall height is connected to a second self-resetting tensile-compression energy-absorbing damper 38, and the other end of the second self-resetting tensile-compression energy-absorbing damper 38 is fixedly connected to the end face of the connecting short beam 36.

[0058] like Figure 10-13As shown, the shear wall of the present invention will undergo shear deformation in an earthquake, and the first arc-shaped stress-bearing layer 15 and the second arc-shaped stress-bearing layer 33 will squeeze each other, causing the second arc-shaped stress-bearing layer 33 to be squeezed and deformed, and then the point where the second arc-shaped stress-bearing layer 33 is connected to the first slider 40 will slide on the first slide groove 37. During the sliding process of the second arc-shaped stress-bearing layer 33, the connecting rod 43 may abut the end of the first long groove 39, causing the friction disk 46 to rotate, and then the friction disk 46 and the side wall layer 44 frictionally dissipate energy. When the shear wall unit 1 undergoes shear deformation, the projection point of the second fixing member 41 on the opposite shear wall unit 1 will also change, so during an earthquake, the second fixing member 41 will also stretch the connecting rod 43 and cause the friction disk 46 to rotate.

[0059] During an earthquake, once the second arc-shaped stress-bearing layer 33 begins to deform and move, the second self-resetting tension-compression energy-absorbing damper 38 will also dissipate energy.

[0060] Based on Figure 1 The energy-absorbing and enhanced assembled shear wall structure of the present invention shown in the figure has the following specific construction sequence: S1, installing the shear wall unit 1 at a predetermined position on site, and then installing the connecting short beam 36; S2, installing the first arc-shaped stress-bearing layer 15 and the second arc-shaped stress-bearing layer 33, and installing the second self-resetting tension-compression energy-absorbing damper 38; S3, installing the X-shaped metal piece 24, and connecting the X-shaped metal piece 24 to the first friction strip 12, and tightening the first friction strip 12 with the ratchet tensioner 20 during the connection; S4, installing the torsion spring portion 35; S5, installing the outer limiting steel plate 27 and the inner limiting steel plate 271, and then installing the vertical force-bearing plate 28, the transverse force-bearing plate 17 and the slidable force-bearing plate 21; S6, installing the second friction strip 13 between the slidable force-bearing plates 21; S7, after installing the first self-resetting tension-compression energy-absorbing damper 16, adjust the position of the slidable force-bearing plate 21 to complete the installation.

[0061] In the above installation process, after the first arc-shaped stress-bearing layer 15 and the second arc-shaped stress-bearing layer 33 abut against each other, the second self-resetting tension-compression energy-absorbing damper 38 should not have obvious initial compression deformation.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents, and any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An energy-absorbing and enhanced assembled shear wall structure, characterized in that: It comprises a plurality of shear wall units (1); in the vertical direction, each of the shear wall units (1) is provided with a plurality of opening units (11); The total number of shear wall units (1) is an odd number, wherein an X-shaped metal piece (24) is installed in the opening unit (11) of the even-numbered shear wall units (1); the even-numbered shear wall units (1) and their adjacent shear wall units (1) form a group of connection units in total of three pieces; A first friction strip (12) is wound in the opening unit (11) located at the same horizontal height on the shear wall unit (1); an X-shaped metal piece (24) connects two first friction strips (12) to form a winding and binding cross region; A transverse force-bearing plate (17) is provided at the upper and lower parts of the two side surfaces in the thickness direction of the wall, and a slidable force-bearing plate (21) is slidably connected to the outer side of the transverse force-bearing plate (17); a plurality of second friction strips (13) arranged vertically are connected to the slidable force-bearing plate (21); A connecting short beam (36) is connected between two opposite side walls of two adjacent shear wall units (1).

2. The energy-absorbing and enhanced assembled shear wall structure according to claim 1 is characterized in that: An overhead support plate (23) is vertically arranged on two end surfaces of the shear wall unit (1) in the wall thickness direction near the opening unit (11) to form a gap between a portion of the first friction strip (12) and the shear wall unit (1).

3. The energy-absorbing and enhanced assembled shear wall structure according to claim 1 is characterized in that: A first force-bearing screw rod (19) is arranged in the opening unit (11) and along the wall thickness direction of the shear wall unit (1), and both ends of the first force-bearing screw rod (19) are connected to vertical force-bearing plates (28); The transverse force-bearing plate (17) is arranged at the upper end and the lower end of the vertical force-bearing plate (28), and a slideway (29) is arranged on the end surface of the transverse force-bearing plate (17), and the slidable force-bearing plate (21) is slidably connected to the outer side of the slideway (29); The first force-bearing screw rod (19) passes through two limiting steel plates, and the two limiting steel plates are clamped in the opening unit (11) and connected by a tensioning bolt (272).

4. The energy-absorbing and enhanced assembled shear wall structure according to claim 1 is characterized in that: A first fixing member (22) is arranged outside the slidable force-bearing plate (21) located at the lower side; end fixing plates (18) are arranged at the two ends of the transverse force-bearing plate (17) located at the lower side; and a first self-resetting tension-compression energy-absorbing damper (16) is connected between the end fixing plate (18) and the first fixing member (22).

5. The energy-absorbing and enhanced assembled shear wall structure according to claim 4 is characterized in that: A plurality of first connection springs (31) are arranged below the slidable force-bearing plate (21) located at the lower side, and a weight block (32) is connected below the first connection springs (31).

6. The energy-absorbing and enhanced assembled shear wall structure according to claim 1 is characterized in that: First fixing members (22) are provided on the outer sides of the slidable force-bearing plates (21) located on the upper side and the lower side; end fixing plates (18) are provided on the two ends of the transverse force-bearing plates (17) located on the upper side and the lower side; and a first self-resetting tension-compression energy-absorbing damper (16) is connected between the end fixing plate (18) and the first fixing member (22).

7. The energy-absorbing and enhanced assembled shear wall structure according to claim 1 is characterized in that: A first force-bearing connecting plate (34) is also provided in the opening unit (11) of the shear wall unit (1) provided with an X-shaped metal piece (24); the first force-bearing connecting plate (34) extends into the shear wall unit (1); and the other end of the first force-bearing connecting plate (34) is connected to a torsion spring portion (35); The torsion spring portion (35) comprises a torsion spring and a roller, the torsion spring is detachably connected to the first force-bearing connecting plate (34), the extended end of the torsion spring is connected to the roller, and the roller abuts against the inner side of the first friction strip (12); A ratchet tensioner (20) is mounted on one end of the first friction strip (12) and is used to tighten the first friction strip (12).

8. The energy-absorbing and enhanced assembled shear wall structure according to claim 1 is characterized in that: A first arc-shaped stress-bearing layer (15) and a second arc-shaped stress-bearing layer (33) are provided between two opposite side walls of two adjacent shear wall units (1); the first arc-shaped stress-bearing layer (15) is installed between the two second arc-shaped stress-bearing layers (33) to form a staggered connection; The first arc-shaped stress-bearing layer (15) and the second arc-shaped stress-bearing layer (33) are in contact with each other, and the bottom end of the first arc-shaped stress-bearing layer (15) is embedded in the shear wall unit (1); The upper end of the second arc-shaped stress-bearing layer (33) located at the uppermost side and the lower end of the second arc-shaped stress-bearing layer (33) located at the lowermost side are fixedly connected to the shear wall unit (1); the shear wall unit (1) is provided with two first sliding grooves (37) on the side close to the second arc-shaped stress-bearing layer (33); a first sliding block (40) is slidably connected in the first sliding groove (37); and the first sliding block (40) is connected to the edge of the second arc-shaped stress-bearing layer (33); A second self-resetting tension-compression energy dissipation damper (38) is connected to the side of the second arc-shaped stress-bearing layer (33) of the connecting short beam (36) near the middle of the height of the shear wall unit (1), and the other end of the second self-resetting tension-compression energy dissipation damper (38) is fixedly connected to the end face of the connecting short beam (36).

9. The energy-absorbing and enhanced assembled shear wall structure according to claim 8, characterized in that: A plurality of side wall layers (44) are arranged in the first arc-shaped stress-bearing layer (15), friction discs (46) are arranged between the side wall layers (44), and the plurality of friction discs (46) are connected in series; A first long groove (39) is provided in the middle of the second arc-shaped stress-bearing layer (33), a second long groove (45) is provided in the middle of the first arc-shaped stress-bearing layer (15), a second fixing member (41) is provided on the side of the shear wall unit (1) provided with the second arc-shaped stress-bearing layer (33), the second fixing member (41) is hinged with a second connecting spring (42), the other end of the second connecting spring (42) is connected to a connecting rod (43), the other end of the connecting rod (43) is connected to a friction disk (46), and the plurality of friction disks (46) are pulled by the connecting rod (43) to rotate synchronously around the side wall layer (44).

10. An installation method of an energy-absorbing and enhanced assembled shear wall structure according to any one of claims 1 to 9, characterized in that: The process includes: Installing multiple shear wall units (1) at predetermined locations on site, and then installing connecting short beams (36); Installing an X-shaped metal member (24) in the opening unit (11) of the even-numbered shear wall unit (1); The first friction strip (12) is wound around two opening units (11) located at the same horizontal height, and an X-shaped metal piece (24) is connected to both ends of the first friction strip (12). During the connection, the first friction strip (12) is tightened to form a winding and binding cross region at the X-shaped metal piece (24), so that the even-numbered shear wall unit (1) and its adjacent shear wall unit (1) form a group of three connected units; When multiple shear wall units (1) are connected to form an integral structure, transverse force plates (17) are installed on the upper and lower parts of two side surfaces in the wall thickness direction, a slidable force plate (21) is installed on the transverse force plate (17), and a second friction strip (13) is installed in the slidable force plate (21).

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