A steel plate shear wall with tension support and construction method thereof

Abstract

The present invention proposes a steel plate shear wall with tension support and a construction method thereof, which relates to the technical field of shear wall; it comprises a plurality of spliced ​​superimposed shear wall panels, the superimposed shear wall panels comprising inner leaf wall panels and outer leaf wall panels, a cavity is left between the inner leaf wall panels and the outer leaf wall panels, a supporting steel plate is arranged in the cavity, and the supporting steel plate is fixed with the inner leaf wall panels and the outer leaf wall panels by bolting positioning components; the upper and lower ends of the supporting steel plate are detachably connected with connecting components respectively, for constructing a basic platform in which the upper and lower supporting steel plates are connected to each other; the corresponding basic platforms of the upper and lower layers are locked and connected by anchors; concrete is poured in the cavity to form a steel plate shear wall with tension support. The present invention makes full use of the performance of steel materials, so that the shear wall has good seismic performance, integrity and stability.

Description

Technical Field

[0001] The invention relates to the technical field of shear walls, and in particular to a steel plate shear wall with tension support and a construction method thereof. Background Art

[0002] like Figure 1 As shown in the figure, the commonly used traditional composite shear wall is generally composed of two layers of prefabricated reinforced concrete slabs, which are connected to form a wall panel component with a middle cavity through truss steel bars or connectors. After on-site installation, concrete is poured to fill the middle cavity to form a concrete wall panel. In terms of structural performance, the main disadvantages are weak vertical connections and a single seismic defense line.

[0003] In order to solve this technical problem, after consulting relevant literature, it is found that steel plate shear walls manufactured by steel plate processing have developed rapidly in recent years. Composite steel plate concrete shear wall is a shear wall in which steel plates, steel sections, steel trusses or other steel components are added to cast-in-place concrete shear wall, such as the composite shear wall and building announced in the patent with authorization announcement number CN 114876262 B. The hidden supporting steel plates and upper and lower wall connecting steel plates added by the invention can be embedded in the interior of the shear wall to form a combined structure after pouring, allowing concrete, steel bars and steel plates to work as a trinity, so that the seismic performance of the shear wall is better and the integrity between the upper and lower shear walls is improved.

[0004] The above-mentioned shear wall adopts concealed support steel plates and upper and lower wall connecting steel plates, which can indeed improve the integrity between the upper and lower shear walls, but it still has the following technical problems: First: Referring to the attached figure of its specification, it can be seen that when connecting the upper and lower shear walls, it is necessary to bolt the connecting steel plate to the X-shaped concealed support steel plate, and the internal cavity of the shear wall panel itself is relatively narrow. Since the internal cavity of the shear wall panel is filled with the X-shaped concealed support steel plate, the internal cavity of the shear wall panel is further divided and reduced; in addition, because the connecting steel plate needs to overlap with the X-shaped concealed support steel plate, the cavity in the middle of the shear wall panel is further reduced after overlapping, and the construction space is very narrow; in addition, since the bolting point is far away from the edge of the composite shear wall, it is inconvenient to insert bolts horizontally. Even if it is time-consuming and laborious to insert the upper bolts, it is inconvenient for workers to operate tools to tighten them due to the deep position, resulting in low construction efficiency and time-consuming and labor-intensive. Second: Referring to the attached figure of its instruction manual, it can be seen that it adopts a method of clamping and fixing the X-shaped concealed support steel plate by a screw rod and two nuts. However, the problem during assembly is that it is necessary to constantly adjust the position of the nuts to achieve the centering clamping of the X-shaped concealed support steel plate, which is time-consuming and labor-intensive; especially when there are multiple screw rods, the adjustment is more troublesome, and each point needs to be constantly adjusted so that the X-shaped concealed support steel plate can be in a centered position, resulting in low overall assembly efficiency. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the present invention proposes a steel plate shear wall with tension support and a construction method thereof. The present invention makes full use of the properties of steel materials, so that the shear wall has good seismic resistance, integrity and stability.

[0006] The technical solution of the present invention to solve the technical problem is:

[0007] On the one hand, the technical scheme proposes a steel plate shear wall with tension support, comprising a plurality of spliced ​​composite shear wall panels, wherein the composite shear wall panels comprise inner leaf wall panels and outer leaf wall panels, a cavity is left between the inner leaf wall panels and the outer leaf wall panels, a support steel plate is arranged in the cavity, and the support steel plate is fixed together with the inner leaf wall panels and the outer leaf wall panels by bolting positioning components to form the composite shear wall panels; wherein the support steel plate is X-shaped as a whole; the upper and lower ends of the support steel plate are detachably connected with connection components respectively, for constructing a basic platform for interconnecting the upper and lower support steel plates; the corresponding basic platforms of the upper and lower layers are locked and connected by tie pieces to realize the vertical close splicing of the upper and lower composite shear wall panels and to connect the support steel plates of the lower layer as one; concrete is poured in the cavity, and the concrete wraps the support steel plate inside to form a steel plate shear wall with tension support.

[0008] Preferably, at least one circular hole is respectively provided at the four corners and the center of the supporting steel plate for use with a bolted positioning assembly; the bolted positioning assembly includes a bolt connection and a positioning member, the positioning member includes a positioning sleeve, and two positioning sleeves are arranged corresponding to one circular hole; one end of the positioning sleeve is threadedly connected with a stepped shaft sleeve, and one positioning sleeve corresponds to one stepped shaft sleeve, and the stepped shaft sleeve is pre-embedded in the inner leaf wall panel and the outer leaf wall panel; a positioning sleeve is respectively provided on both sides of the circular hole, and the positioning sleeve is threadedly connected with the corresponding stepped shaft sleeve; the bolt connection includes a tension screw, the end of the tension screw passes through the positioning sleeve and the circular hole and extends into the stepped shaft sleeve, and both ends of the tension screw are threadedly connected with tension nuts, and the tension nuts are embedded in the stepped shaft sleeve.

[0009] Preferably, the four corners of the supporting steel plate are further provided with slots for use with the connecting assembly; the connecting assembly comprises a transverse plate, the two ends of the transverse plate are fixedly connected to the side plates, the transverse plate is provided with two symmetrical rectangular holes, the ends of the supporting steel plate can pass through the rectangular holes, an insert plate is inserted in the slot, a first bolt is threadedly connected to the insert plate, the bottom end of the first bolt is pressed on the surface of the transverse plate to achieve the pressing and fixing of the transverse plate; the side plate is provided with a positioning hole for use with the anchor; the anchor comprises an arm rod, the arm rod Extrusion blocks are fixedly connected at both ends, and the two extrusion blocks are symmetrically arranged. The inner side of the extrusion block is an inclined surface; one end of the extrusion block can pass through the positioning hole, and when the extrusion block is pushed, the extrusion block can drive the side plate to move vertically to achieve the tightening of the upper and lower supporting steel plates; a guide hole is provided on the arm rod; it also includes a pad, the end of the pad is used to be clamped on the side plate, a threaded rod is connected to the pad, one end of the threaded rod freely passes through the guide hole, and a nut is threadedly connected to this end of the threaded rod, and when the nut is screwed, the arm plate and the pad are relatively tightened.

[0010] Preferably, the side wall of the pad is connected with a rubber magnet, the rubber magnet has an adhesive backing, and the rubber magnet is fixedly connected to the pad via the adhesive backing.

[0011] Preferably, the transverse plate is provided with a plurality of flow holes for concrete to flow.

[0012] Preferably, the inner leaf wall panels and the outer leaf wall panels are made of ultra-high performance concrete.

[0013] Preferably, the side panels and the transverse panel form an I-shaped structure.

[0014] On the other hand, the technical solution also proposes a construction method of a steel plate shear wall with tension support, comprising the following steps:

[0015] S1. Factory assembly:

[0016] S11. Prefabricate the inner leaf wall panels and the outer leaf wall panels in the factory; during prefabrication, embed the stepped shaft sleeves in the designed positions of the inner leaf wall panels and the outer leaf wall panels;

[0017] S12, installing the connection assembly at the upper and lower ends of the supporting steel plate, the specific method is: the horizontal plate and the side plate are welded and fixed in advance; then the horizontal plate is sleeved on the supporting steel plate, the two heads of the supporting steel plate pass through the rectangular holes of the horizontal plate, and the horizontal plate moves downward relative to the supporting steel plate until the horizontal plate cannot move, at which time the horizontal plate is engaged with the supporting steel plate; then, the plug-in plate is inserted into the slot hole, and then the first bolt adapted to the threaded hole of the plug-in plate is screwed until the first bolt is tightly pressed against the surface of the horizontal plate, and the horizontal plate is completely positioned and fixed;

[0018] S13, assembling the inner leaf wall panel and the outer leaf wall panel, the specific method is as follows: first, the positioning sleeve in the bolted positioning assembly is threadedly connected with the embedded stepped shaft sleeve, and the positioning sleeves on the inner leaf wall panel or the outer leaf wall panel respectively form spacing control points; the outer leaf wall panel is placed flat on the mounting frame, and then the supporting steel plate with the connecting assembly is pressed on the positioning sleeve of the outer leaf wall panel, so that the circular hole on the supporting steel plate is aligned with the corresponding positioning sleeve, and then the inner leaf wall panel is pressed on the supporting steel plate, so that the positioning sleeve on the inner leaf wall panel is aligned with the circular hole on the supporting steel plate; the positioning sleeve, the circular hole and the stepped shaft sleeve form an installation channel for inserting the tension screw, and then the tension screw is passed through the installation channel, and the tension nuts are screwed on both ends of the tension screw, and the tension nuts are tightened to tighten and fix the inner leaf wall panel and the outer leaf wall panel; under the control of the positioning sleeves on both sides, the supporting steel plate is centered in the cavity of the inner leaf wall panel and the outer leaf wall panel;

[0019] S2. On-site construction:

[0020] S21, transporting the assembled composite shear wall panels to the construction site;

[0021] S22, positioning and installing the lower layer composite shear wall panels;

[0022] S23, positioning and installing the upper laminated shear wall panels;

[0023] S24, connecting the upper and lower layers of the superimposed shear wall panels together through the tie pieces, the specific process is: first, install the pad with the threaded rod in place, so that the pad is positioned and fits on the ends of the upper and lower side panels; then, hold the arm, insert the extrusion blocks at both ends of the arm into the positioning holes of the upper and lower corresponding side panels respectively, and at the same time, make one end of the threaded rod pass through the guide hole of the arm, and then screw the nut on the threaded rod. As the nut is tightened, the upper and lower layers of the superimposed shear wall panels are tied and interlocked together, and at the same time, the gap between the upper and lower layers of the superimposed shear wall panels is reduced to form a close-fitting structure;

[0024] S25. After the composite shear wall panels are installed, concrete is poured into the cavity to form a steel plate shear wall with tension support.

[0025] The above technical solution has the following advantages or beneficial effects:

[0026] 1. The present invention optimizes the assembly method and designs a bolted positioning component. By pre-embedding stepped shaft sleeves in the inner leaf wall panel and the outer leaf wall panel, the positioning of the installation point is determined. The positioning sleeve is used in conjunction with a threaded positioning sleeve to control the spacing between the support steel plate and the wall panel. This is fast, accurate, time-saving and labor-saving, and can eliminate tedious adjustment steps. The assembly speed is faster, and the automatic centering of the support steel plate can be achieved, effectively improving the assembly efficiency.

[0027] 2. The inner and outer leaf wall panels are made of ultra-high performance concrete, which has the advantages of light weight, high strength, high durability, high energy saving performance, etc. It is energy-saving and environmentally friendly, has excellent shear bearing capacity and long service life.

[0028] 3. The connection components designed in the present invention are assembled in an assembly manner, and the method of plug-in connection + pressure-holding limit is adopted during assembly. The assembly is fast and convenient, and there is no particularly high requirement for installation accuracy. The most important thing is that the connection components are assembled in a first-assembly manner, which is different from the existing post-assembly manner. The assembly link is arranged before the splicing steps of the inner leaf wall panels and the outer leaf wall panels, which can effectively solve the drawbacks of narrow construction space, inconvenient cross-bolts and tightening in the prior art. The connection components can be used to quickly and conveniently construct a basic platform for the upper and lower layers of the overlapping shear walls, which is convenient for workers to construct and operate, and greatly improves production efficiency.

[0029] 4. The anchor designed in the present invention is used in conjunction with the connection components constructed in advance, and the horizontal through-bolt connection in the prior art is adjusted to a vertical extrusion anchor. Firstly, it reduces the difficulty of construction in a narrow construction space, saving time and effort. Secondly, it sets the operation point close to the edge of the wall panel, which provides convenience for the workers' operation and can effectively solve the problem of inconvenient or even impossible operation caused by the deep location, thereby effectively improving the construction efficiency. Thirdly, the inclined surface of the extrusion block can be used to reduce the joints between the upper and lower overlapping shear wall panels to achieve a close joint effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0031] Figure 1 It is a structural stereogram of a traditional composite shear wall panel in the prior art.

[0032] Figure 2 It is a structural stereogram of the composite shear wall panel in the present invention.

[0033] Figure 3 yes Figure 2 Structural side view of the composite shear wall panel.

[0034] Figure 4 yes Figure 2 Structural front view of the composite shear wall panel.

[0035] Figure 5 It is a schematic diagram of the split structure of the bolted positioning component.

[0036] Figure 6 It is a structural diagram of the supporting steel plate and the connecting components.

[0037] Figure 7 It is a structural schematic diagram of the upper and lower composite shear wall panels during assembly.

[0038] Figure 8 yes Figure 7 Schematic diagram of the split structure when the middle, upper and lower supporting steel plates are connected.

[0039] Fig. 9 yes Figure 8 Three-dimensional structural diagram when the upper and lower supporting steel plates are connected.

[0040] Fig.10 yes Fig. 9 Schematic diagram of the structure when a single supporting steel plate cooperates with the connecting components and anchors.

[0041] Fig.11 yes Fig.10 Front view of the split structure of the middle anchor.

[0042] Description of reference numerals:

[0043] 1. Inner leaf wall panel; 2. Outer leaf wall panel; 3. Support steel plate; 31. Round hole; 4. Connection assembly; 41. Cross plate; 411. Rectangular hole; 412. Flow hole; 42. Side plate; 421. Positioning hole; 43. Insert plate; 44. First bolt; 5. Bolted positioning assembly; 51. Stepped bushing; 52. Positioning sleeve; 53. Tension screw; 54. Tension nut; 6. Tie piece; 61. Arm; 62. Extrusion block; 63. Pad; 64. Threaded rod; 65. Nut. DETAILED DESCRIPTION

[0044] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0046] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0047] like Figure 1 As shown in the figure, the commonly used traditional composite shear wall is generally composed of two layers of prefabricated reinforced concrete slabs, which are connected to form a wall panel component with a middle cavity through truss steel bars or connectors. After on-site installation, concrete is poured to fill the middle cavity to form a concrete wall panel. In terms of structural performance, there are mainly disadvantages such as weak vertical connections and a single seismic defense line. In response to this technical problem, as Figure 2 - Fig.10 As shown, this embodiment proposes a steel plate shear wall with tension support, including a plurality of spliced ​​composite shear wall panels, the composite shear wall panels including inner leaf wall panels 1 and outer leaf wall panels 2, a cavity is left between the inner leaf wall panels 1 and the outer leaf wall panels 2 for pouring; a support steel plate 3 is provided in the cavity, and the support steel plate 3 is fixed together with the inner leaf wall panels 1 and the outer leaf wall panels 2 by a bolted positioning assembly 5 to form the composite shear wall panels.

[0048] In this embodiment, the inner leaf wall panel 1 and the outer leaf wall panel 2 can be made of ordinary concrete panels or UHPC prefabricated panels. The UHPC prefabricated panel is a wall panel made of ultra-high performance concrete (UHPC). It has the following characteristics:

[0049] 1. Lightweight: Due to the use of lightweight materials, the weight of the wall panels is reduced, reducing the cost and weight of the building.

[0050] 2. High strength: Compared with ordinary concrete, UHPC has higher strength and durability, can effectively resist the erosion of the natural environment and chemicals, and ensures its service life.

[0051] 3. High durability: UHPC precast panels have excellent shear bearing capacity and long service life.

[0052] 4. High energy-saving performance: UHPC has excellent thermal insulation performance, which can effectively reduce the energy consumption of buildings and improve energy utilization efficiency.

[0053] The inner leaf wall panels 1 and the outer leaf wall panels 2 may also be made of FC boards, namely fiber cement boards, also known as fiber reinforced cement boards, which have the following characteristics:

[0054] 1. Fireproof insulation: non-flammable Class A, the board will not burn and will not produce toxic smoke when a fire occurs; low conductivity, it is an ideal insulating material.

[0055] 2. Waterproof and moisture-proof: In semi-open air and high humidity environments, it can still maintain stable performance without sinking or deformation.

[0056] 3. Heat insulation and sound insulation: low thermal conductivity, good heat insulation performance, high product density and good sound insulation.

[0057] 4. Lightweight and high strength: high strength, not easy to deform or warp.

[0058] 5. Ultra-long service life: It is resistant to acid and alkali, corrosion, moisture, insects and ants, and its strength and hardness increase over time, ensuring an ultra-long service life.

[0059] In this embodiment, the inner leaf wall panels 1 and the outer leaf wall panels 2 may be preferably made of ultra-high performance concrete.

[0060] In this embodiment, the supporting steel plate 3 is in an X-shape as a whole. Through the internally arranged X-shaped supporting steel plate 3, the composite shear wall can make full use of the excellent seismic performance of steel, so that the strength, bearing capacity and integrity of the shear wall are significantly improved. Figure 1 Compared with traditional composite shear walls, it can effectively reduce the thickness of the shear wall, reduce the density of connecting steel bars between precast concrete slabs, and reduce the difficulty of pouring concrete on the construction site.

[0061] In this embodiment, the upper and lower ends of the supporting steel plate 3 are respectively detachably connected with connecting components 4, and the function of the connecting component 4 is to construct a basic platform that connects the upper and lower supporting steel plates 3 to each other; the corresponding basic platforms of the upper and lower layers are locked and connected by a tie member 6 to achieve vertical close splicing of the upper and lower layers of composite shear wall panels and to connect the supporting steel plate 3 of the lower layer as one; concrete is poured in the cavity, and the concrete wraps the supporting steel plate 3 inside. The cast-in-place concrete is connected to the supporting steel plate 3 and components such as the inner leaf wall panel 1 and the outer leaf wall panel 2 to form a steel plate shear wall with tension support.

[0062] The above-mentioned connection component 4, the anchor 6, the bolting and positioning component 5 and other parts are introduced in detail.

[0063] A. About bolted positioning assembly 5:

[0064] At least one circular hole 31 is respectively provided at the four corners and the center of the supporting steel plate 3, which is used in conjunction with the bolting positioning assembly 5; the bolting positioning assembly 5 includes a bolting member and a positioning member, the positioning member includes a positioning sleeve 52, two positioning sleeves 52 are correspondingly provided for one circular hole 31, and the two positioning sleeves 52 are positioned and clamped on both sides of the supporting steel plate 3 at the corresponding circular hole 31 position; one end of the positioning sleeve 52 is threadedly connected with a stepped shaft sleeve 51, and one positioning sleeve 52 is correspondingly provided with a stepped shaft sleeve 51, and the stepped shaft sleeve 51 is pre-embedded in the inner leaf wall panel 1 and the outer leaf wall panel 2, that is, the inner leaf wall panel 1 and the outer leaf wall panel 2 are pre-embedded with the stepped shaft sleeve 51, and the so-called stepped shaft sleeve 51 refers to a sleeve structure with a stepped hole inside. The stepped shaft sleeve 51 has an internal thread; a positioning sleeve 52 is respectively provided on both sides of the circular hole 31, and the positioning sleeve 52 has an external thread, and the positioning sleeve 52 is threadedly connected with the corresponding stepped shaft sleeve 51. The bolted parts include a tension screw 53, both ends of which have external thread sections, the ends of which penetrate the positioning sleeve 52 and the round hole 31 and extend into the stepped sleeve 51, and both ends of the tension screw 53 are threadedly connected with tension nuts 54, which are embedded in the stepped sleeve 51. Note that the ends of the tension screw 53 shall not exceed the edges of the inner leaf wallboard 1 and the outer leaf wallboard 2, and it is a hidden structure to prevent its exposure from affecting the construction of other processes on the wallboard surface.

[0065] B. About Connected Component 4:

[0066] The four corners of the supporting steel plate 3 are also provided with slots for use with the connecting assembly 4; the connecting assembly 4 includes a horizontal plate 41, and the two ends of the horizontal plate 41 are fixedly connected to the side plates 42. The horizontal plate 41 is provided with two symmetrical rectangular holes 411, and the ends of the supporting steel plate 3 can pass through the rectangular holes 411. A plug plate 43 is inserted in the slot, and a first bolt 44 is threadedly connected to the plug plate 43. The plug plate 43 has a threaded hole for the first bolt 44 to be screwed and connected; the end of the first bolt 44 is The first bolt 44 is pressed on the surface of the horizontal plate 41 to achieve the pressing and fixing of the horizontal plate 41; when in use, the horizontal plate 41 is inserted into the supporting steel plate 3 through the rectangular hole 411, and the horizontal plate 41 moves downward relative to the supporting steel plate 3 until the horizontal plate 41 cannot move, that is, the horizontal plate 41 is stuck on the supporting steel plate 3, and then the inserting plate 43 is inserted from the slot, and the first bolt 44 is screwed on the inserting plate 43, and the first bolt 44 is tightened until the end of the first bolt 44 is tightly pressed against the horizontal plate 41. In this way, the horizontal plate 41 can be limited in the horizontal direction by using the rectangular hole 411, and the horizontal plate 41 can be limited in the vertical direction by using the first bolt 44.

[0067] In this embodiment, the side plates 42 and the transverse plate 41 form an I-shaped structure. In order to facilitate the flow of concrete during pouring, a plurality of flow holes 412 for the flow of concrete are provided on the transverse plate 41.

[0068] C. About anchor 6:

[0069] The side plate 42 is provided with a positioning hole 421 for use with the anchor 6; the anchor 6 includes an arm rod 61, and the two ends of the arm rod 61 are fixedly connected with extrusion blocks 62, the two extrusion blocks 62 are symmetrically arranged, and the inner side of the extrusion block 62 is an inclined surface; one end of the extrusion block 62 can pass through the positioning hole 421, and when the extrusion block 62 is pushed, the extrusion block 62 can drive the side plate 42 to move vertically to achieve the tensioning of the upper and lower supporting steel plates 3; a guide hole is provided on the arm rod 61; it also includes a pad 63, the end of the pad 63 is used to be clamped at the side plate 42, and one side of the pad 63 is pressed on the ends of the upper and lower side plates 42; a threaded rod 64 is connected to the pad 63, one end of the threaded rod 64 freely passes through the guide hole, and the end of the threaded rod 64 is threadedly connected to a nut 65, and when the nut 65 is screwed, the arm plate and the pad 63 are relatively tightened.

[0070] In this embodiment, in order to facilitate the operation of workers and to facilitate the temporary fixation of the pad 63, the following method can be adopted: the side wall of the pad 63 is connected with a rubber magnet, and the rubber magnet has an adhesive backing. The rubber magnet is fixedly connected to the pad 63 through the adhesive backing, and the magnetic rubber magnet can be magnetically fixed to the side panel 42. In this way, during construction, it is convenient for workers to install and prevent the pad 63 from falling off due to loose grip.

[0071] This embodiment also proposes a construction method of a steel plate shear wall with tension support, comprising the following steps:

[0072] S1. Factory assembly:

[0073] S11, prefabricate the inner leaf wall panel 1 and the outer leaf wall panel 2 in a factory; during prefabrication, embed the stepped shaft sleeve 51 into the designed positions of the inner leaf wall panel 1 and the outer leaf wall panel 2;

[0074] S12, install the connection assembly 4 at the upper and lower ends of the supporting steel plate 3, and the specific method is as follows: the horizontal plate 41 and the side plate 42 are welded and fixed in advance; then the horizontal plate 41 is sleeved on the supporting steel plate 3, and the two heads of the supporting steel plate 3 pass through the rectangular holes 411 of the horizontal plate 41, and the horizontal plate 41 moves downward relative to the supporting steel plate 3 until the horizontal plate 41 cannot move, and the horizontal plate 41 is now engaged with the supporting steel plate 3; then, insert the plug plate 43 into the slot, and then screw the first bolt 44 that is adapted to the threaded hole of the plug plate 43 until the first bolt 44 is tightly pressed against the surface of the horizontal plate 41, and the horizontal plate 41 is completely positioned and fixed;

[0075] S13, assembling the inner leaf wall panel 1 and the outer leaf wall panel 2, the specific method is: first, the positioning sleeve 52 in the bolt positioning assembly 5 is threadedly connected with the pre-buried stepped shaft sleeve 51, and the positioning sleeves 52 located on the inner leaf wall panel 1 or the outer leaf wall panel 2 respectively form spacing control points; the outer leaf wall panel 2 is placed flat on the mounting frame, and then the supporting steel plate 3 with the connecting assembly 4 is pressed on the positioning sleeve 52 of the outer leaf wall panel 2, so that the circular hole 31 on the supporting steel plate 3 is aligned with the corresponding positioning sleeve 52, and then the inner leaf wall panel 1 is pressed on the supporting steel plate 3. On the supporting steel plate 3, align the positioning sleeve 52 on the inner leaf wall panel 1 with the circular hole 31 on the supporting steel plate 3; the positioning sleeve 52, the circular hole 31 and the stepped shaft sleeve 51 form an installation channel for inserting the tension screw 53, and then the tension screw 53 passes through the installation channel, and the tension nuts 54 are screwed on both ends of the tension screw 53, and the tension nuts 54 are tightened to tighten and fix the inner leaf wall panel 1 and the outer leaf wall panel 2; under the control of the positioning sleeves 52 on both sides, the supporting steel plate 3 is centered in the cavity of the inner leaf wall panel 1 and the outer leaf wall panel 2;

[0076] S2. On-site construction:

[0077] S21, transporting the assembled composite shear wall panels to the construction site;

[0078] S22, positioning and installing the lower layer composite shear wall panels;

[0079] S23, positioning and installing the upper laminated shear wall panels;

[0080] S24, the upper and lower layers of the laminated shear wall panels are connected as a whole through the tie piece 6, and the specific process is: first, the pad 63 with the threaded rod 64 is installed in place, so that the pad 63 is positioned and fits on the ends of the upper and lower side panels 42; then, the arm 61 is held, and the extrusion blocks 62 at both ends of the arm 61 are respectively inserted into the positioning holes 421 of the upper and lower corresponding side panels 42, and one end of the threaded rod 64 is passed through the guide hole of the arm 61, and then the nut 65 is screwed on the threaded rod 64. As the nut 65 is tightened, the upper and lower layers of the laminated shear wall panels are tied and interlocked as a whole, and at the same time, the gap between the upper and lower layers of the laminated shear wall panels is reduced to form a close-fitting structure;

[0081] S25. After the composite shear wall panels are installed, concrete is poured into the cavity to form a steel plate shear wall with tension support.

[0082] Application results:

[0083] 1) In processing and production:

[0084] The present invention optimizes the assembly method and designs a bolted positioning component 5. By pre-embedding a stepped shaft sleeve 51 in the inner leaf wall panel 1 and the outer leaf wall panel 2, the positioning of the installation point is determined. The positioning sleeve 52 is used in conjunction with a threaded connection to realize the spacing control between the support steel plate 3 and the wall panel. It is fast, accurate, time-saving and labor-saving, and can avoid tedious adjustment steps. The assembly speed is faster, and the automatic centering positioning of the support steel plate 3 can be achieved, effectively improving the assembly efficiency.

[0085] 2) In construction:

[0086] Firstly, the connection component 4 designed in the present invention is assembled by assembly, and the method of plug-in connection + pressure-holding limit is adopted during assembly. The assembly is fast and convenient, and there is no particularly high requirement for the installation accuracy. The most important thing is that the connection component 4 adopts the method of pre-assembly, which is different from the existing post-assembly method. The assembly link is arranged before the splicing step of the inner leaf wall panel 1 and the outer leaf wall panel 2, which can effectively solve the drawbacks of narrow construction space, inconvenient cross bolts and tightening in the prior art. The connection component 4 can be used to quickly and conveniently construct a basic platform for the upper and lower layer overlapping shear wall tie, which is convenient for workers to construct and operate, and greatly improves production efficiency.

[0087] Secondly, the anchor 6 designed in the present invention is used in conjunction with the pre-constructed connection assembly 4 to adjust the horizontal through-bolt connection in the prior art to a vertical extrusion anchor. Firstly, it reduces the difficulty of construction in a narrow construction space, saving time and effort. Secondly, it sets the operation point close to the edge of the wall panel, which provides convenience for the workers' operation and can effectively solve the problem of inconvenient or even impossible operation caused by the deep location, thereby effectively improving the construction efficiency. Thirdly, the inclined surface of the extrusion block 62 can be used to reduce the joints between the upper and lower overlapping shear wall panels to achieve a close joint effect.

[0088] Although the above describes the specific implementation mode of the invention in conjunction with the drawings, it is not intended to limit the scope of protection of the invention. Based on the technical solution of the present invention, various modifications or variations that can be made by those skilled in the art without creative work are still within the scope of protection of the present invention.

Claims

1. A steel plate shear wall with tension support, characterized in that: The invention relates to a plurality of spliced ​​composite shear wall panels, wherein the composite shear wall panels comprise inner leaf wall panels (1) and outer leaf wall panels (2), wherein a cavity is left between the inner leaf wall panels (1) and the outer leaf wall panels (2), wherein a support steel plate (3) is provided in the cavity, wherein the support steel plate (3) is fixed together with the inner leaf wall panels (1) and the outer leaf wall panels (2) by means of a bolted positioning assembly (5) to form the composite shear wall panel; wherein the support steel plate (3) is in an X-shape as a whole; the upper and lower ends of the support steel plate (3) are respectively detachably connected with connection assemblies (4) for constructing a basic platform for mutually connecting the upper and lower support steel plates (3); the upper and lower corresponding basic platforms are locked and connected by means of a tie member (6) to realize the vertical close splicing of the upper and lower composite shear wall panels and to connect the support steel plate (3) of the lower layer as a whole; concrete is poured in the cavity, wherein the support steel plate (3) is wrapped therein, thereby forming a steel plate shear wall with tensile support; At least one circular hole (31) is respectively formed at the four corners and the center of the support steel plate (3) for use with a bolted positioning assembly (5); the bolted positioning assembly (5) comprises a bolt connection member and a positioning member, the positioning member comprises a positioning sleeve (52), and two positioning sleeves (52) are arranged corresponding to one circular hole (31); one end of the positioning sleeve (52) is threadedly connected to a stepped shaft sleeve (51), and one positioning sleeve (52) is arranged corresponding to one stepped shaft sleeve (51), and the stepped shaft sleeve (51) is pre-buried in the inner In the leaf wall plate (1) and the outer leaf wall plate (2); a positioning sleeve (52) is respectively provided on both sides of the circular hole (31), and the positioning sleeve (52) is threadedly connected to the corresponding stepped shaft sleeve (51); the bolt connection comprises a tension screw rod (53), the end of the tension screw rod (53) passes through the positioning sleeve (52) and the circular hole (31) and extends into the stepped shaft sleeve (51), and the two ends of the tension screw rod (53) are threadedly connected to tension nuts (54), and the tension nuts (54) are embedded in the stepped shaft sleeve (51); The supporting steel plate (3) is also provided with slots at the four corners for use with the connecting assembly (4); the connecting assembly (4) comprises a transverse plate (41), the two ends of the transverse plate (41) are fixedly connected to the side plates (42), the transverse plate (41) is provided with two symmetrical rectangular holes (411), the ends of the supporting steel plate (3) can pass through the rectangular holes (411), an insert plate (43) is inserted in the slot, a first bolt (44) is threadedly connected to the insert plate (43), the bottom end of the first bolt (44) is pressed on the surface of the transverse plate (41), so as to achieve the pressing and fixing of the transverse plate (41); the side plate (42) is provided with a positioning hole (421) for use with the anchor (6); the anchor (6) comprises an arm rod (61), the two ends of the arm rod (61) are provided with a plurality of holes (421) for use with the anchor (6); the anchor (6) comprises an arm rod (61), the two ends of the arm rod (61) are provided with a plurality of holes (421) for use with the anchor (6); the anchor (6) comprises an arm rod (61), the two ends of the arm rod (61) are provided with a plurality of holes (421) for use with the connecting assembly ... The end of the arm (61) is fixedly connected with an extrusion block (62), the two extrusion blocks (62) are symmetrically arranged, and the inner side of the extrusion block (62) is an inclined surface; one end of the extrusion block (62) can pass through the positioning hole (421), and when the extrusion block (62) is pushed, the extrusion block (62) can drive the side plate (42) to move vertically, so as to achieve the tensioning of the upper and lower supporting steel plates (3); a guide hole is provided on the arm (61); and it also includes a pad (63), the end of the pad (63) is used for clamping at the side plate (42), the pad (63) is connected with a threaded rod (64), one end of the threaded rod (64) freely passes through the guide hole, and the end of the threaded rod (64) is threadedly connected with a nut (65), and when the nut (65) is screwed, the arm (61) and the pad (63) are relatively tensioned.

2. A steel plate shear wall with tension support according to claim 1, characterized in that: The side wall of the pad (63) is connected to a rubber magnetic patch, the rubber magnetic patch has an adhesive backing, and the rubber magnetic patch is fixedly connected to the pad (63) via the adhesive backing.

3. The steel plate shear wall with tension support according to claim 2, characterized in that: The transverse plate (41) is provided with a plurality of flow holes (412) for concrete to flow.

4. The steel plate shear wall with tension support according to claim 3, characterized in that: The inner leaf wall panels (1) and the outer leaf wall panels (2) are made of ultra-high performance concrete.

5. The steel plate shear wall with tension support according to claim 4, characterized in that: The side plate (42) and the transverse plate (41) form an I-shaped structure.

6. The construction method of a steel plate shear wall with tension support as claimed in claim 5, characterized in that: The steps include: S1. Factory assembly: S11, prefabricating the inner leaf wall panel (1) and the outer leaf wall panel (2) in a factory; during prefabrication, embedding the stepped shaft sleeve (51) into the designed positions of the inner leaf wall panel (1) and the outer leaf wall panel (2); S12, installing the connection assembly (4) at the upper and lower ends of the supporting steel plate (3), specifically, the following method: the transverse plate (41) and the side plate (42) are welded and fixed in advance; then the transverse plate (41) is sleeved on the supporting steel plate (3), the two heads of the supporting steel plate (3) pass through the rectangular holes (411) of the transverse plate (41), and the transverse plate (41) moves downward relative to the supporting steel plate (3) until the transverse plate (41) cannot move, at which time the transverse plate (41) is engaged with the supporting steel plate (3); then, the insert plate (43) is inserted into the slot, and then the first bolt (44) adapted to the slot is screwed on the threaded hole of the insert plate (43) until the first bolt (44) is tightly pressed against the surface of the transverse plate (41), and the transverse plate (41) is completely positioned and fixed; S13, assembling the inner leaf wall panel (1) and the outer leaf wall panel (2), the specific method is as follows: first, the positioning sleeve (52) in the bolted positioning assembly (5) is threadedly connected to the pre-buried stepped shaft sleeve (51), and the positioning sleeve (52) located on the inner leaf wall panel (1) or the outer leaf wall panel (2) respectively forms a spacing control point; the outer leaf wall panel (2) is placed flat on the mounting frame, and then the supporting steel plate (3) with the connecting assembly (4) is pressed on the positioning sleeve (52) of the outer leaf wall panel (2), so that the circular hole (31) on the supporting steel plate (3) is aligned with the corresponding positioning sleeve (52), and then the inner leaf wall panel (1) is pressed on the supporting steel plate The plate (3) is mounted such that the positioning sleeve (52) on the inner leaf wall plate (1) is aligned with the circular hole (31) on the supporting steel plate (3); the positioning sleeve (52), the circular hole (31) and the stepped shaft sleeve (51) form an installation channel for inserting the tension screw (53); the tension screw (53) is then inserted through the installation channel; tension nuts (54) are screwed onto both ends of the tension screw (53); the tension nuts (54) are tightened to tighten and fix the inner leaf wall plate (1) and the outer leaf wall plate (2); the supporting steel plate (3) is centrally located in the cavity of the inner leaf wall plate (1) and the outer leaf wall plate (2) under the control of the positioning sleeves (52) on both sides; S2. On-site construction: S21, transporting the assembled composite shear wall panels to the construction site; S22, positioning and installing the lower layer composite shear wall panels; S23, positioning and installing the upper laminated shear wall panels; S24, connecting the upper and lower layers of the laminated shear wall panels together through the tie pieces (6), the specific process is: first, installing the pad (63) with the threaded rod (64) in place, so that the pad (63) is positioned and fits on the ends of the upper and lower layers of the side panels (42); then holding the arm (61), so that the extrusion blocks (62) at both ends of the arm (61) are respectively inserted into the positioning holes (421) of the upper and lower corresponding side panels (42), and at the same time, one end of the threaded rod (64) is passed through the guide hole of the arm (61), and then the nut (65) is screwed on the threaded rod (64). As the nut (65) is tightened, the upper and lower layers of the laminated shear wall panels are tied and interlocked together, and at the same time, the gap between the upper and lower layers of the laminated shear wall panels is reduced, forming a close-fitting structure; S25. After the composite shear wall panels are installed, concrete is poured into the cavity to form a steel plate shear wall with tension support.

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