Non-dismantling double-sided composite shear wall panel, composite shear wall and construction method thereof

Abstract

The invention discloses a non-disassembly double-sided composite shear wall panel, a composite shear wall and a construction method thereof, comprising an inner wall panel and an outer wall panel; an inner cavity is provided between the inner wall panel and the outer wall panel, a steel bar truss is installed in the inner cavity, and the inner wall panel and the outer wall panel are cement boards; the inner wall panel and the outer wall panel are provided with tension bolt holes; the two sides of the steel bar truss are respectively assembled and connected with the inner and outer wall panels, and the steel bar truss comprises a plurality of longitudinal bars, namely the first longitudinal bar, the first longitudinal bar and the second longitudinal bar extending from the upper and lower ends of the cement board; a serpentine connecting bar is connected between the first longitudinal bar and the second longitudinal bar symmetrical to the first longitudinal bar; and transverse bar penetration holes are provided on the first longitudinal bar and the second longitudinal bar. The invention effectively solves the problems of long maintenance period of precast concrete wall panels, low production efficiency, large occupied production site, and great difficulty and safety in connecting and grouting the upper and lower steel bar sleeves of precast concrete wall panels; the inner wall panels and the outer wall panels adopt cement boards, which reduces product quality and improves production efficiency.

Description

Technical Field

[0001] The present invention relates to the field of prefabricated buildings, and in particular to a disassembly-free double-sided composite shear wall panel, a composite shear wall and a construction method thereof. Background Art

[0002] As people's living standards improve, they have higher demands on their living environment. The traditional extensive house construction method has gradually been replaced by industrialized and integrated construction methods. In this context, the composite slab concrete shear wall structure came into being. It can achieve the standardization and modularization of residential structural components, reduce the on-site formwork support, and also shorten the construction period.

[0003] The existing double-sided composite wall panels have the following problems: (1) The inner wall panels and outer wall panels are precast concrete, which have the disadvantages of long maintenance period, low production efficiency, large production site occupation and heavy weight, which increases the difficulty of transportation and installation and increases the workload; for example, the Chinese invention patent application publication number CN111673900A discloses a production process and production structure of a double-sided prefabricated thermal insulation composite shear wall panel, in which the inner leaf wall panel and the outer leaf wall panel need to be cast, which is inconvenient to construct and has low production efficiency. (2) When constructing a double-sided composite wall panel cast-in-place concrete shear wall system, when assembling two adjacent vertical double-sided composite wall panels, their longitudinal reinforcement is generally connected by a reinforcement sleeve. The construction process is as follows: the grouting sleeve is pre-buried at the bottom of the prefabricated shear wall, the top vertical reinforcement of the prefabricated shear wall is extended outward, and then the bottom grouting sleeve of the prefabricated shear wall of the upper layer is sleeved on the top vertical extension reinforcement of the prefabricated shear wall of this layer and grouting is performed, thereby connecting the upper and lower shear walls. In this way, there are the following problems: the plastic hinge of the general shear wall is formed at the bottom of the shear wall, but due to the effect of the grouting sleeve, the plastic hinge cannot be formed at the bottom of the shear wall, which results in the top reinforcement of the layer being pulled off at the lower end of the grouting sleeve, resulting in brittle failure, which is difficult to control and prone to safety hazards. In addition, it is inconvenient to construct and has the disadvantages of great difficulty in connection and grouting. Summary of the invention

[0004] In order to solve the problems existing in the above-mentioned prior art, a non-disassembly double-sided composite shear wall panel, a composite shear wall and a construction method thereof are provided.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] The present invention proposes a disassembly-free double-sided composite shear wall panel, comprising an inner wall panel and an outer wall panel; an inner cavity is provided between the inner wall panel and the outer wall panel, a steel truss is installed in the inner cavity, and the inner wall panel and the outer wall panel are cement panels; the inner wall panel and the outer wall panel are provided with corresponding tension bolt holes; the two sides of the steel truss are respectively assembled and connected with the inner wall panel and the outer wall panel, the steel truss comprises longitudinal bars, which are a plurality of first longitudinal bars and a plurality of second longitudinal bars, the first longitudinal bars and the second longitudinal bars are symmetrically arranged, and the first longitudinal bars and the second longitudinal bars extend from the upper and lower ends of the cement panel; a serpentine connecting bar is connected between each first longitudinal bar and a second longitudinal bar symmetrical to the first longitudinal bar; and transverse bar penetration holes are provided on the first longitudinal bars and the second longitudinal bars.

[0007] Preferably, the serpentine connecting rib is provided with a plurality of bending portions, and the bending portions are arranged in a "W" shape. The serpentine connecting rib is respectively connected to the first longitudinal rib and the second longitudinal rib through the bending portions, and a transverse rib penetration hole is formed after the connection, and the transverse rib penetration hole is arranged in the space between the first longitudinal rib and the second longitudinal rib.

[0008] Preferably, plate reinforcement connectors are provided on both sides of the steel bar truss, and the plate reinforcement connectors are welded to the outer walls of the first longitudinal reinforcement and the second longitudinal reinforcement; the plate reinforcement connectors are respectively connected to the inner wall panels and the outer wall panels through plate reinforcement connecting screws.

[0009] Preferably, the plate reinforcement connector is in a "T" shape, an "H" shape, a rectangular shape or a groove shape. Preferably, a lap joint is provided at the bottom of the longitudinal reinforcement.

[0010] Preferably, the thickness of the cement board is 6-15 mm.

[0011] The present invention also proposes a composite shear wall, which comprises a plurality of assembled non-disassembly double-sided composite shear wall panels in both the horizontal and vertical directions; it also comprises transverse reinforcement, which passes through the corresponding transverse reinforcement penetration holes of adjacent double-sided composite shear wall panels to connect the non-disassembly double-sided composite shear wall panels into a whole in the horizontal direction; the composite shear wall is connected into a whole in the vertical direction by binding the upper and lower adjacent longitudinal reinforcements.

[0012] The present invention also proposes a construction method for the above-mentioned composite shear wall, comprising the following steps:

[0013] S1: Assemble and fix the bottom limit support frame template on the bottom plate of this layer. The bottom limit support frame template is divided into two pieces, left and right, which are connected as a whole through a support pull tab.

[0014] Used to support the non-disassembly double-sided composite shear wall panel;

[0015] The bottom limit support frame template is an aluminum template support pull plate system, and the bottom limit support frame template is provided with a plugging hole for workers to tie longitudinal reinforcement; it also includes a frame template plugging plate adapted to the plugging hole, and the frame template plugging plate can be assembled and connected in the plugging hole;

[0016] S2: multiple non-dismantling double-sided composite shear wall panels are placed on the bottom limit support frame template, so that the upper ends of the inner wall panels and the outer wall panels of the non-dismantling double-sided composite shear wall panels are respectively connected to the top plate template of the current layer, and the lower ends of the inner wall panels and the outer wall panels are supported on the supporting pull tabs, and then the non-dismantling double-sided composite shear wall panels are fixed;

[0017] Among them, the specific fixing method of each non-dismantling double-sided composite shear wall panel is as follows: select a tension bolt hole at a suitable height, then pass the tension bolt rod through the tension bolt hole, symmetrically set two template support cards on the tension bolt rod, so that the template support cards are respectively fitted with the inner wall panel and the outer wall panel, and then symmetrically set the left and right two oblique supports on the two ends of the tension bolt rod, so that the bottoms of the left and right two oblique supports are respectively supported and fixed on the bottom plate of the current layer, and finally symmetrically tighten the fixing screws on the left and right to complete the fixation of the template support card and the oblique support, thereby realizing the fixation of the non-dismantling double-sided composite shear wall panel;

[0018] S3: The transverse reinforcement is passed through the corresponding transverse reinforcement holes of the adjacent double-sided composite shear wall panels and connected to the steel trusses to form a complete stress reinforcement system, thereby connecting the multiple assembled non-disassembly double-sided composite shear wall panels of the layer in the horizontal direction to form a whole;

[0019] S4: The worker reaches into the inner cavity between the inner wall panel and the outer wall panel through the blocked hole on the bottom limit support frame template, and ties the longitudinal reinforcement of the non-dismantling double-sided composite shear wall panel of this layer with the longitudinal reinforcement of the composite shear wall located below the bottom plate of this layer, so as to connect them vertically into a whole;

[0020] S5: After the binding is completed, the frame template blocking plate is installed in the blocking hole to block the blocking hole; S6: The edge sealing template is installed;

[0021] S7: Pour concrete between the inner wall panels and the outer wall panels to form the composite shear wall of this layer.

[0022] Preferably, the template support card in step S2 is cross-shaped, with a through hole at the center. Preferably, the oblique support is fixed to the bottom plate of the current layer by expansion bolts.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The interior and exterior wall panels are prefabricated cement panels, which solves the long maintenance period of prefabricated concrete wall panels.

[0025] Low production efficiency, large production site occupation, difficulty in connecting and grouting the upper and lower steel sleeves of precast concrete wall panels, and safety issues; since the inner and outer wall panels are made of 6-15mm thick cement boards, the product quality is greatly reduced, the difficulty of transportation and installation is reduced, and the labor intensity is reduced; assembly in the workshop has high production efficiency and reduces production costs;

[0026] 2. Plate reinforcement connectors are welded on both sides of the steel truss. The plate reinforcement connectors are connected to the inner wall panels and outer wall panels respectively through plate reinforcement connecting screws. The screw connection method improves the assembly speed and saves time and effort;

[0027] 3. The serpentine connecting reinforcement is provided with a plurality of bending parts, which are arranged in a "W" shape. The serpentine connecting reinforcement is respectively connected with the first longitudinal reinforcement and the second longitudinal reinforcement through the bending parts, and a transverse reinforcement penetration hole is formed after the connection. During construction, the transverse reinforcement is passed through the transverse reinforcement penetration holes of multiple assembled non-disassembly double-sided composite wall panels, and the transverse reinforcement is connected with the longitudinal reinforcement and the serpentine connecting reinforcement to form a complete force reinforcement system of the shear wall;

[0028] 4. By extending the two ends of the longitudinal reinforcement out of the inner cavity, the form of "exposed ends" is adopted to facilitate the connection of the upper and lower longitudinal reinforcements; the bottom limit support frame template adopts an aluminum template support pull plate system, and a plugging hole is opened in the bottom limit support frame template; it also includes a frame template plugging plate compatible with the plugging hole, and the frame template plugging plate is detachably connected to the plugging hole, so that this structure is convenient for workers to construct. The workers reach into the inner cavity through the plugging hole to complete the binding of the upper and lower longitudinal reinforcements. In this way, the grouting sleeve is abandoned, and the problem that the plastic hinge cannot be formed at the bottom of the shear wall due to the action of the grouting sleeve, resulting in the top steel bar of the layer being pulled off at the lower end of the grouting sleeve, thereby causing brittle failure, making it difficult to control safety, prone to safety hazards, inconvenient construction, and having the disadvantages of great difficulty in connection and grouting. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0030] FIG. 1 is a side view of an embodiment of the present invention.

[0031] FIG. 2 is a front view of the first embodiment of the present invention.

[0032] FIG. 3 is a schematic diagram of the bottom limit support frame template structure.

[0033] Figure 4 is a schematic diagram of the arrangement of the A-direction transverse reinforcement and the first longitudinal reinforcement and the second longitudinal reinforcement.

[0034] Figure 5 is a schematic diagram of the template support card structure.

[0035] FIG. 6 is a schematic diagram of the bottom limit support frame template structure.

[0036] Figure 7 is a schematic diagram of the longitudinal reinforcement connection structure of the upper and lower composite shear walls.

[0037] FIG. 8 is a schematic diagram of the staggered connection structure of the upper and lower laminated shear wall panels in the first embodiment.

[0038] FIG. 9 is a schematic diagram of the structure of the second embodiment of the present invention.

[0039] FIG. 10 is a schematic diagram of the connection structure of the upper and lower laminated shear wall panels in the second embodiment.

[0040] 1 Inner wall panel; 2 Outer wall panel; 31 First longitudinal reinforcement; 32 Second longitudinal reinforcement; 4 Serpentine connecting reinforcement; 41 Bending part; 5 Plate reinforcement connector; 6 Plate reinforcement connecting screw; 7 Transverse reinforcement; 8 Hole for tension bolt; 9 Reserved opening; 10 Hole for transverse reinforcement; 11 Bottom limit support frame template; 111 Blocking opening; 12 Support pull tab; 13 Tension bolt rod; 14 Template support card; 141 Through hole; 15 Oblique support; 16 Fastening screw; 17 Expansion bolt; 18 Bottom plate of this layer; 19 Frame template blocking plate; 20 Top plate of this layer; 21 Overlapping part. DETAILED DESCRIPTION

[0041] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0042] Embodiment 1

[0043] As shown in FIG. 1-8 , the present embodiment provides a double-sided composite shear wall panel that does not require disassembly, and it includes an inner wall

[0044] Board 1, exterior wall board 2; interior wall board 1 and exterior wall board 2 are prefabricated cement boards; interior wall board 1 and exterior wall board

[0045] 2 are arranged opposite to each other, with an installation space left between the two; a steel truss is installed in the inner cavity between the inner wall panel 1 and the outer wall panel 2.

[0046] The two sides of the steel truss are respectively connected to the inner wall panel 1 and the outer wall panel 2 in a detachable assembly manner. The steel truss includes longitudinal bars, which are divided into a plurality of first longitudinal bars 31 and a plurality of second longitudinal bars 32. The first longitudinal bars 31 and the second longitudinal bars 32 are symmetrically arranged. Both ends of the first longitudinal bars 31 and the second longitudinal bars 32 extend from the inner cavity to the outside, that is, both ends of the longitudinal bars extend out of the cement board, and a structural form of both ends being exposed is adopted; each first longitudinal bar

[0047] A connecting rib is connected between the second longitudinal rib 32 symmetrical to the first longitudinal rib 31.

[0048] 31, the second longitudinal ribs 32 are provided with transverse rib penetration holes 10. Specifically, for the convenience of installation, the connecting ribs are serpentine connecting ribs 4, and the serpentine connecting ribs 4 are provided with a plurality of bending portions 41. The bending portions 41 are arranged in a "W" shape. The bending portions 41 can be formed by bending the serpentine connecting ribs in an integrated manner. The serpentine connecting ribs 4 are formed by bending the serpentine connecting ribs in a "W" shape.

[0049] 41 are welded to the first longitudinal rib 31 and the second longitudinal rib 32 respectively. After connection, the bending portion 41 and the first longitudinal rib 31 and the second longitudinal rib 32 jointly form the above-mentioned transverse rib penetration hole 10, which is arranged in the space between the first longitudinal rib 31 and the second longitudinal rib 32.

[0050] Plate reinforcement connectors 5 are provided on both sides of the steel bar truss. The cross-sectional shape of the plate reinforcement connector 5 can be "T" shaped, "H" shaped, rectangular or groove-shaped. The cross-sectional shape of the plate reinforcement connector 5 is preferably rectangular.

[0051] In order to make the processing more convenient and the cost lower, specifically, the plate reinforcement connector 5 is welded on the first longitudinal

[0052] The plate reinforcement connector 5 is connected to the inner wall panel through the plate reinforcement connecting screw 6.

[0053] 1. The exterior wall panels 2 are connected.

[0054] Plate reinforcement connectors 5 are welded on both sides of the steel bar truss, and the plate reinforcement connectors 5 are respectively connected to the inner wall panel 1 and the outer wall panel 2 through plate reinforcement connecting screws 6. The screw connection method is adopted to improve the assembly speed, save time and labor.

[0055] The inner wall panels 1 and the outer wall panels 2 are cement boards that do not require prefabrication. The thickness of the cement boards is 6-15mm, which solves the problems of long maintenance period of prefabricated concrete, low production efficiency, and large production site occupation. Since the inner wall panels 1 and the outer wall panels 2 are made of 6-15mm thick cement boards, the product quality is greatly reduced, the difficulty of transportation and installation is reduced, and the labor intensity is reduced. They are assembled in the workshop, with high production efficiency and reduced production costs.

[0056] Since the thickness of the inner wall panel 1 and the outer wall panel 2 is relatively thin, concrete is poured into the cavity between the inner and outer wall panels.

[0057] In order to avoid the inner wall panel 1 and the outer wall panel 2 from being expanded and cracked, the inner wall panel 1 and the outer wall panel 2 are provided with matching tension bolt holes 8, and the row spacing between the tension bolt holes 8 becomes narrower and narrower from top to bottom. The tension bolt holes 8 can be used to tighten the inner wall panel 1 and the outer wall panel 2 to improve the bearing capacity.

[0058] A reserved hole 9 is provided on the inner wall panel 1 and / or the outer wall panel 2, and a reserved junction box panel can be installed in the reserved hole 9.

[0059] The production process of the above-mentioned non-disassembly double-sided composite shear wall panel is as follows:

[0060] Arrange the steel truss → weld the plate reinforcement connector 5 at the appropriate position on the outside of the steel truss → connect the exterior wall panel 2 to the plate reinforcement connector 5 through the plate reinforcement connecting screws 6 → weld the plate reinforcement connector at the appropriate position on the inside of the steel truss

[0061] Connector 5 → Connect the inner wall panel 1 to the plate reinforcement connector 5 through the plate reinforcement connecting screw 6 → The products are placed horizontally according to different sizes.

[0062] It can be seen that the interior wall panels 1 and the exterior wall panels 2 solve the problems of long maintenance period of precast concrete, low production efficiency and large production site occupation by adopting precast-free cement boards; and the thickness of the cement boards used is 6-15mm, which greatly reduces the product quality; plate reinforcement connectors 5 are welded on both sides of the steel truss, and the plate reinforcement connectors 5 are respectively connected to the interior wall panels 1 and the exterior wall panels 2 through plate reinforcement connecting screws 6, and are assembled in the workshop by screw connection, which improves the assembly speed, saves time and effort, and has high production efficiency.

[0063] This embodiment also proposes a composite shear wall, which includes multiple assembled non-disassembly double-sided composite shear wall panels in the horizontal and vertical directions; it also includes transverse reinforcement, which passes through the corresponding transverse reinforcement penetration holes of adjacent double-sided composite shear wall panels to connect the non-disassembly double-sided composite shear wall panels into a whole in the horizontal direction; the composite shear wall is connected into a whole in the vertical direction by binding the upper and lower adjacent longitudinal reinforcements.

[0064] The construction method of the composite shear wall comprises the following steps:

[0065] S1: Assemble and fix the bottom limit support frame template 11 on the bottom plate 18 of this layer. The bottom limit support frame template 11 is divided into two left and right pieces, which are connected as a whole through the support pull tab 12.

[0066] The frame formwork 11 is used to support the non-disassembly double-sided laminated shear wall panels and play a role in supporting and limiting positioning;

[0067] The bottom limit support frame template 11 is an aluminum template support pull plate system. The aluminum template support pull plate system can adopt the aluminum template produced by Shandong Baiwei Technology Construction Co., Ltd., but the difference is that the bottom limit support frame template 11 also has a plugging hole 111 for the convenience of workers to construct; it also includes a frame template plugging plate 19 adapted to the plugging hole 111, and the frame template plugging plate 19 can be assembled and connected to

[0068] The connection method between the frame template blocking plate 19 and the blocking hole 111 can adopt the connection method between existing aluminum templates, which will not be described in detail here.

[0069] S2: Place multiple non-dismantling double-sided composite shear wall panels on the bottom limit support frame template 11.

[0070] The upper ends of the inner wall panels 1 and the outer wall panels 2 of the double-sided composite shear wall panels are respectively connected to the top plate template 20 of the current layer.

[0071] The lower ends of the inner wall panel 1 and the outer wall panel 2 are supported on the support pull tab 12, and then the double-sided composite shear wall panel is fixed;

[0072] It should be noted that the support pull tab 12 plays two roles here. On the one hand, the support pull tab

[0073] Sheet 12 can be used with pins to quickly and easily lock the inner and outer aluminum templates to avoid

[0074] The vibration and pressure generated during the process affect the wall thickness; on the other hand, the support pull tab 12 also plays a supporting role.

[0075] The inner wall panels 1 and outer wall panels 2 of the double-sided laminated shear wall panels are pressed on the supporting pull tabs 12 and are

[0076] Support pull tab 12 Support.

[0077] The specific fixing method of each non-disassembly double-sided composite shear wall panel is as follows: select the tension bolt hole 8 at a suitable height, then pass the tension bolt rod 13 through the tension bolt hole 8, and symmetrically set two formwork support cards 14 on the tension bolt rod 13, so that the formwork support cards 14 are respectively connected to the inner wall panel 1 and the outer wall panel

[0078] 2, and then two inclined supports 15 are symmetrically mounted on both ends of the tension bolt rod 13, so that the left

[0079] The bottom support of the two right inclined supports 15 is fixed on the bottom plate 18 of this layer, and finally the fastening screws are tightened symmetrically on the left and right.

[0080] 16 Complete the fixation of the formwork support card 14 and the inclined support 15, thereby realizing the double-sided composite shear wall panel without disassembly.

[0081] The formwork support card 14 is used to increase the contact area with the inner and outer wall panels to prevent the fastening screws 16 from damaging the cement board surface.

[0082] In addition, tension bolt rods 13 are inserted into the remaining tension bolt holes 8, and two formwork support cards 14 are symmetrically mounted on the tension bolt rods 13. Then, the fastening screws 16 are symmetrically tightened to tighten the inner wall panel 1 and the outer wall panel 2, so that the formwork support cards 14 are respectively fitted with the inner wall panel 1 and the outer wall panel 2 to increase the contact area.

[0083] S3: The transverse reinforcement 7 passes through the adjacent double-sided laminated shear wall panels corresponding to the transverse reinforcement through the hole 10 and connected to the steel truss to form a complete force reinforcement system, thereby the layer of multiple pieces of assembled non-disassembly double-sided laminated shear wall panels in the horizontal direction connected as a whole;

[0084] S4: The worker reaches into the inner wall through the blocking hole 111 on the bottom limit support frame template 11

[0085] In the inner cavity between the plate 1 and the outer wall plate 2, the longitudinal reinforcement of the non-dismantling double-sided composite shear wall plate of this layer is tied with the longitudinal reinforcement of the composite shear wall located below the bottom plate of this layer, so as to be connected vertically into a whole;

[0086] S5: After the binding is completed, the frame template blocking plate 19 is installed in the blocking hole 111.

[0087] The hole 111 was sealed;

[0088] S6: Install edge banding template;

[0089] S7: pouring concrete between the inner wall panel 1 and the outer wall panel 2 to form the composite shear wall of this layer. It should be noted that the composite shear wall located below the bottom plate of this layer in step S4 adopts the composite shear wall of the present invention.

[0090] The non-disassembly double-sided composite shear wall panel can be formed by the construction method proposed by the present invention or by the construction method in the prior art. The method of the present invention is preferred. In addition, when the upper and lower longitudinal reinforcements are connected, an overlapping binding method is adopted, so that the longitudinal reinforcements are staggered in the transverse direction, so that the wall panels (inner wall panels and outer wall panels) of the upper and lower composite shear walls are staggered, as shown in Figure 8.

[0091] Preferably, the template support card 14 in step S2 is cross-shaped, with a through hole 141 at the center; the oblique support 15 is fixed to the bottom plate 18 of the current layer by expansion bolts 17 .

[0092] The transverse reinforcement 7 of the present invention adopts a post-insertion construction method, by providing a plurality of

[0093] The bending portion 41 is arranged in a "W" shape. The serpentine connecting rib 4 is connected to the first longitudinal rib 31 and the second longitudinal rib 32 through the bending portion 41. After the connection, a transverse rib penetration hole 10 is formed. During construction, the transverse rib 7 is passed through the transverse rib penetration holes 10 of multiple assembled and connected non-disassembly double-sided composite wall panels. The transverse rib 7 is connected to the longitudinal ribs and the second longitudinal ribs.

[0094] The serpentine connecting bars 4 are connected to form a complete force-bearing bar system of the shear wall, thereby improving the force-bearing capacity and stability of the shear wall.

[0095] The present invention extends the two ends of the longitudinal reinforcement out of the inner cavity, adopts the form of "exposed ends", and facilitates the connection of the upper and lower longitudinal reinforcements; the bottom limit support frame template 11 adopts an aluminum template support pull plate system, and a blocking hole 111 is opened in the bottom limit support frame template 11; it also includes a frame template blocking plate 19 adapted to the blocking hole, and the frame template blocking plate 19 can be detachably connected to the blocking hole 111,

[0096] In this way, the structure is convenient for workers to construct. The workers can reach into the inner cavity through the blocked hole 111 to complete the binding of the upper and lower longitudinal reinforcements. In this way, the grouting sleeve is abandoned, and the problem that the bottom of the shear wall cannot form a plastic hinge due to the effect of the grouting sleeve, resulting in the top reinforcement of the layer being broken at the lower end of the grouting sleeve, thereby causing brittle failure, making it difficult to control safety, prone to safety hazards, inconvenient construction, and having the disadvantages of great difficulty in connection and grouting is effectively solved.

[0097] Embodiment 2

[0098] As shown in Figures 9-10, this embodiment proposes a non-disassembly double-sided composite shear wall panel, and other structures are the same as those of the first embodiment. The difference is that, in this embodiment, a lap portion 21 is provided at the bottom of the longitudinal reinforcement, and the bottom of the longitudinal reinforcement is bent to one side to form the above-mentioned lap portion. During construction, the top of the longitudinal reinforcement of the lower composite shear wall panel is connected to the lap portion 21 of the upper composite shear wall panel, which can achieve the flushing of the upper and lower composite shear wall panels, solve the problem of misalignment of the upper and lower composite shear wall panels in the first embodiment, and is more convenient for construction.

[0099] By utilizing the overlapped portion 21, the longitudinal reinforcement bending and dislocation of the upper and lower laminated wall panels can be achieved, thereby ensuring that the upper and lower laminated shear wall panels are flush after construction.

[0100] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A construction method of a composite shear wall, comprising a composite shear wall, wherein the composite shear wall comprises a non-dismantling double-sided composite shear wall panel, wherein the non-dismantling double-sided composite shear wall panel comprises an inner wall panel and an outer wall panel; an inner cavity is provided between the inner wall panel and the outer wall panel, wherein a steel bar truss is installed in the inner cavity, wherein the ... The inner wall panels and the outer wall panels are cement panels; the inner wall panels and the outer wall panels are provided with corresponding tension bolt holes; the two sides of the steel bar truss are respectively assembled and connected with the inner wall panels and the outer wall panels; the steel bar truss includes longitudinal bars, which are a plurality of first longitudinal bars and a plurality of second longitudinal bars, the first longitudinal bars and the second longitudinal bars are symmetrically arranged, and the first longitudinal bars and the second longitudinal bars extend from the upper and lower ends of the cement panels; a serpentine connecting bar is connected between each first longitudinal bar and a second longitudinal bar symmetrical to the first longitudinal bar; the first longitudinal bars and the second longitudinal bars are provided with holes for transverse bars; The composite shear wall includes multiple assembled non-dismantling double-sided composite shear wall panels in the horizontal and vertical directions; it also includes transverse reinforcement, which passes through the corresponding transverse reinforcement penetration holes of adjacent non-dismantling double-sided composite shear wall panels to connect the non-dismantling double-sided composite shear wall panels in the horizontal direction into a whole; the composite shear wall is connected as a whole by tying the upper and lower adjacent longitudinal reinforcements in the vertical direction; The following steps are involved: S1: Assemble and fix the bottom limit support frame template on the bottom plate of the current layer. The bottom limit support frame template is divided into two pieces, left and right, which are connected as a whole through a support pull tab. The bottom limit support frame template is used to support the non-disassembly double-sided composite shear wall panel; The bottom limit support frame template is an aluminum template support pull plate system, and the bottom limit support frame template is provided with a plugging hole for workers to tie longitudinal reinforcement; it also includes a frame template plugging plate adapted to the plugging hole, and the frame template plugging plate can be assembled and connected in the plugging hole; S2: multiple non-dismantling double-sided composite shear wall panels are placed on the bottom limit support frame template, so that the upper ends of the inner wall panels and the outer wall panels of the non-dismantling double-sided composite shear wall panels are respectively connected to the top plate template of the current layer, and the lower ends of the inner wall panels and the outer wall panels are supported on the supporting pull tabs, and then the non-dismantling double-sided composite shear wall panels are fixed; Among them, the specific fixing method of each non-dismantling double-sided composite shear wall panel is as follows: select a tension bolt hole at a suitable height, then pass the tension bolt rod through the tension bolt hole, symmetrically set two formwork support cards on the tension bolt rod, so that the formwork support cards are respectively fitted with the inner wall panel and the outer wall panel, and then symmetrically set the left and right two oblique supports on the two ends of the tension bolt rod, so that the bottoms of the left and right two oblique supports are respectively supported and fixed on the bottom plate of the current layer, and finally symmetrically tighten the fixing screws on the left and right to complete the fixation of the formwork support cards and the oblique supports, thereby realizing the fixation of the non-dismantling double-sided composite shear wall panel; S3: The transverse reinforcement is passed through the corresponding transverse reinforcement holes of the adjacent non-dismantling double-sided composite shear wall panels and connected to the steel trusses to form a complete stress reinforcement system, thereby connecting the multiple assembled non-dismantling double-sided composite shear wall panels of the layer in the horizontal direction to form a whole; S4: The worker reaches into the inner cavity between the inner wall panel and the outer wall panel through the blocked hole on the bottom limit support frame template, and ties the longitudinal reinforcement of the non-dismantling double-sided composite shear wall panel of this layer with the longitudinal reinforcement of the composite shear wall located below the bottom plate of this layer, so as to connect them vertically into a whole; S5: After the binding is completed, the frame template blocking plate is installed in the blocking hole to block the blocking hole; S6: Install edge banding template; S7: Pour concrete between the inner wall panels and the outer wall panels to form the composite shear wall of this layer.

2. A construction method for a composite shear wall according to claim 1, characterized in that: The serpentine connecting rib is provided with a plurality of bending portions, and the bending portions are arranged in a "W" shape. The serpentine connecting rib is connected to the first longitudinal rib and the second longitudinal rib respectively through the bending portions, and a transverse rib penetration hole is formed after the connection, and the transverse rib penetration hole is arranged in the space between the first longitudinal rib and the second longitudinal rib.

3. The construction method of a composite shear wall according to claim 1, characterized in that: Plate reinforcement connectors are provided on both sides of the steel bar truss, and the plate reinforcement connectors are welded to the outer walls of the first longitudinal reinforcement and the second longitudinal reinforcement; the plate reinforcement connectors are respectively connected to the inner wall panels and the outer wall panels through plate reinforcement connecting screws.

4. A construction method for a composite shear wall according to claim 3, characterized in that: The plate reinforcement connector is in the shape of a "T" shape, an "H" shape, a rectangle or a groove shape.

5. The construction method of a composite shear wall according to claim 1, characterized in that: The bottom of the longitudinal reinforcement is provided with an overlapping portion.

6. The construction method of a composite shear wall according to claim 1, characterized in that: The thickness of the cement board is 6-15 mm.

7. The construction method of a composite shear wall according to claim 1, characterized in that: The template support card in step S2 is cross-shaped, with a through hole at the center.

8. The construction method of a composite shear wall according to claim 1, characterized in that: The oblique support is fixed to the bottom plate of the current layer by expansion bolts.

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