Double-side formwork integrated shear wall based on truss steel reinforcement framework and construction method of double-side formwork integrated shear wall

Abstract

The invention discloses a double-side formwork integrated shear wall based on a truss steel reinforcement framework and a construction method of the double-side formwork integrated shear wall. The double-side formwork integrated shear wall comprises two formwork plates which are oppositely arranged; the truss framework units are arranged between the two formwork plates, each truss framework unit comprises a center connecting rod and four spoke ribs, each spoke rib is in a wave shape, a plurality of valley bottoms on one side of each spoke rib are connected to the center connecting rod, the four spoke ribs are arranged in the circumferential direction of the center connecting rod, and the center connecting rod is connected with the center connecting rod. A plurality of peak top parts on the other sides of the spoke ribs are embedded in the mold shell plate, and the middle parts of the spoke ribs are connected with lateral ribs; the connecting ribs are connected to the lateral ribs of the truss framework units; and the cast-in-place concrete is poured between the two formwork plates and wraps the truss framework units and the connecting ribs. The problem that a shear wall of an existing formwork system is insufficient in connection stability is solved.

Description

Technical Field

[0001] This invention relates to the field of shear wall technology, specifically to a double-sided integrated formwork shear wall based on a truss steel reinforcement skeleton and its construction method. Background Technology

[0002] Traditional shear wall construction methods typically involve formwork erection, rebar tying, concrete pouring, and formwork removal, resulting in numerous procedures, long construction periods, high labor intensity, and reliance on manual labor for construction accuracy. In recent years, the use of formwork systems for shear wall construction has been gradually adopted, achieving formwork-free construction by using the formwork as permanent templates, significantly improving construction efficiency. However, existing formwork systems often use separate connectors or rigid positioning components to connect the two sides of the formwork, which has the following drawbacks: 1. Insufficient connection stability: During the concrete pouring process, the double-sided formwork is positioned only by point-type connectors, which cannot form overall rigidity and is easily deformed by the pouring pressure.

[0003] 2. Strong independence of the steel reinforcement cage: In the existing formwork system, the steel reinforcement cage and the formwork are installed separately, which increases the construction process and lacks overall integrity.

[0004] 3. Poor adjustment capability: Traditional methods cannot achieve integrated positioning of the double-sided formwork and the steel reinforcement cage, affecting the control of wall thickness and verticality. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies, a double-sided formwork integrated shear wall based on a truss steel reinforcement skeleton and its construction method are provided to solve the problem of insufficient connection stability of existing formwork system shear walls.

[0006] To achieve the above objectives, a double-sided formwork integrated shear wall based on a truss steel reinforcement frame is provided, comprising: Two mold shell plates, the two mold shell plates being arranged opposite to each other; Multiple truss skeleton units are arranged between the two mold shell plates. Each truss skeleton unit includes a central connecting rod and four spokes. The spokes are wavy. Multiple valley bottoms on one side of each spoke are connected to the central connecting rod. The four spokes are arranged along the circumferential direction of the central connecting rod. Multiple peak tops on the other side of each spoke are embedded in the mold shell plate. Lateral ribs are connected to the middle of each spoke. Connecting bars are lateral bars that connect multiple truss frame units; Cast-in-place concrete is poured between the two formwork plates and covers the truss frame unit and the connecting bars.

[0007] Furthermore, the peaks of two of the spoke ribs are embedded in one mold plate, and the peaks of the other two spoke ribs are embedded in another mold plate.

[0008] Furthermore, the spoke rib includes multiple U-shaped segments and multiple V-shaped segments, the U-shaped segments and the V-shaped segments are alternately arranged, the two limbs of the V-shaped segment are respectively connected to one limb of the two U-shaped segments, the ends of the two limbs of the U-shaped segments and the V-shaped segments are embedded in the mold plate, and the closed end of the V-shaped segment is connected to the central connecting rod.

[0009] Furthermore, the U-shaped segment is arranged along the surface direction of the mold plate.

[0010] This invention provides a construction method for an integrated double-sided formwork shear wall based on a truss steel reinforcement frame, comprising the following steps: Two prefabricated shell plates are used, and multiple truss skeleton units are placed between the two shell plates. The tops of multiple peaks on the other side of the spokes of the multiple truss skeleton units are embedded in the shell plates. The prefabricated two-mold shell plates are hoisted to the installation position; Connecting reinforcement bars to the lateral reinforcement bars of multiple truss frame units; Cast-in-place concrete is poured between the two formwork plates, so that the cast-in-place concrete covers the truss skeleton unit and the connecting bars to form a double-sided integrated shear wall based on the truss steel skeleton.

[0011] The beneficial effects of this invention are that the integrated shear wall with double-sided formwork based on a truss steel skeleton has high overall stiffness. The truss skeleton units form a spatially stable structure, and the double-sided formwork plates no longer rely on single-point connections, resulting in strong resistance to pouring pressure.

[0012] The present invention relates to an integrated construction method for double-sided formwork shear walls based on a truss steel skeleton. The formwork panels and truss skeleton units are prefabricated as a whole, reducing on-site procedures and shortening the construction period.

[0013] The present invention provides a double-sided integrated shear wall based on a truss steel skeleton, which controls the spacing and verticality of the formwork plates through truss skeleton units to ensure the dimensional accuracy of the wall.

[0014] The truss frame unit of the double-sided formwork integrated shear wall based on the truss steel reinforcement skeleton of the present invention is not only used to connect the formwork plate, but also serves as part of the shear wall reinforcement, reducing the amount of steel reinforcement binding work.

[0015] The formwork of the double-sided integrated shear wall based on a truss steel frame of the present invention is permanently retained, eliminating the need for formwork removal, reducing material waste and dust, and meeting the requirements of green construction. Attached Figure Description

[0016] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a structural schematic diagram of a double-sided integrated shear wall based on a truss steel frame, according to an embodiment of the present invention.

[0017] Figure 2 This is a top view of a double-sided integrated shear wall based on a truss steel frame, according to an embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram showing the layout of multiple truss frame units according to an embodiment of the present invention.

[0019] Figure 4 This is a structural schematic diagram of the truss frame unit according to an embodiment of the present invention.

[0020] Figure label: Mold plate 1; Truss frame unit 2, central connecting rod 21, spoke reinforcement 22, U-shaped segment 221, V-shaped segment 222, lateral reinforcement 23; 3 connecting bars. Detailed Implementation

[0021] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] Reference Figures 1 to 4 As shown, the present invention provides a double-sided formwork integrated shear wall based on a truss steel skeleton, comprising: a formwork plate 1, a truss skeleton unit 2, connecting bars 3, and cast-in-place concrete.

[0024] In this embodiment, the formwork slab is a precast concrete slab. There are two formwork slabs. The two formwork slabs are arranged opposite each other, forming a casting space between them. The two formwork slabs are connected together by multiple truss frame units.

[0025] Specifically, multiple truss frame units 2 are arranged between the two shell plates 1. The number of truss frame units 2 is multiple. These multiple truss frame units 2 are continuously arranged along the length of the shear wall.

[0026] The truss frame unit 2 includes a central connecting rod 21, four spoke reinforcement bars 22, and lateral reinforcement bars 23.

[0027] Among them, see Figure 2 and Figure 4 As shown, the spoke ribs 22 are wavy. Multiple valleys on one side of the spoke ribs 22 are connected to the central connecting rod 21. Four spoke ribs 22 are arranged circumferentially along the central connecting rod 21. Multiple peaks on the other side of the spoke ribs 22 are embedded in the mold plate 1. Lateral ribs 23 are connected to the middle of the spoke ribs 22.

[0028] The connecting bar 3 is connected to the lateral bars 23 of multiple truss frame units 2.

[0029] Cast-in-place concrete is poured between the two formwork plates 1. The cast-in-place concrete covers the truss frame unit 2 and the connecting bars 3.

[0030] In this embodiment, the four spokes are symmetrically distributed in pairs on both sides of the central connecting rod. The peaks of two spokes 22 are embedded in one mold plate 1. The peaks of the other two spokes 22 are embedded in another mold plate 1.

[0031] See Figure 4 As shown, the spoke rib 22 includes multiple U-shaped segments 221 and multiple V-shaped segments 222. The U-shaped segments 221 and V-shaped segments 222 are arranged alternately. The two limbs of the V-shaped segment 222 are respectively connected to one limb of the two U-shaped segments 221. The ends of the two limbs of the U-shaped segments 221 and V-shaped segments 222 are embedded in the mold plate 1. The closed end of the V-shaped segment 222 is connected to the central connecting rod 21.

[0032] In this embodiment, refer to Figure 2 As shown, the U-shaped segment 221 is arranged along the surface direction of the mold plate 1.

[0033] The present invention relates to a double-sided integrated shear wall based on a truss steel skeleton, which uses truss skeleton units as the main connecting structure of the double-sided formwork panels, so that the formwork panels and truss skeleton units are integrated in the factory or on site, realizing the functional integration of the formwork panels and steel bars, and enhancing the overall rigidity and resistance to pouring pressure of the formwork panel system during construction through the spatial stability of the truss skeleton units.

[0034] Unlike traditional methods that rely on single-point connectors or rigid bolts to connect the formwork panels, the double-sided integrated shear wall based on a truss steel reinforcement skeleton of this invention integrates the connecting components with the steel reinforcement skeleton. That is, the connector used for positioning the formwork panels is also part of the wall reinforcement system, reducing redundant components and improving structural utilization.

[0035] The present invention provides lateral pressure resistance through a double-sided formwork integrated shear wall based on a truss steel skeleton by means of a triangular and planar stable structure, replacing the traditional planar steel reinforcement arrangement.

[0036] The spoke reinforcement of the double-sided integrated shear wall based on truss steel reinforcement skeleton of the present invention is bent and anchored into the formwork plate, forming a reliable anchoring point in the concrete layer of the formwork plate, ensuring the overall integration of the formwork plate and the steel reinforcement skeleton, and avoiding displacement or bulging of traditional formwork plates during the pouring process.

[0037] In the truss reinforcement cage, the lateral bars are arranged near the inner surface of the formwork plate and extend vertically, serving as both load-bearing members of the truss and vertical main reinforcement of the shear wall.

[0038] In the truss steel skeleton, the central connecting rod is arranged in the middle of the wall thickness direction and vertically to form the core load-bearing component of the truss skeleton unit, thereby improving the bending stiffness.

[0039] In the truss reinforcement cage, spokes are used to connect the lateral bars and the central tie rod, and are arranged in an inclined or wavy manner to form triangular stable units. The spokes are bent at the end near the formwork plate and extend into the formwork plate, where they are integrally fixed with the concrete during the casting process, forming anchor points.

[0040] Multiple truss units are arranged continuously along the length of the shear wall to form a continuous truss skeleton system.

[0041] The double-sided formwork integrated shear wall based on a truss steel skeleton of the present invention can maintain overall stability before the pouring of cast-in-place concrete, providing initial support force for the formwork plate, enabling the formwork plate to have self-supporting capacity during hoisting and construction, and reducing reliance on temporary support systems.

[0042] The present invention utilizes a double-sided formwork integrated shear wall based on a truss steel reinforcement skeleton, where spoked reinforcement bars are bent and anchored within the concrete layer of the formwork slab, thus creating a strong bond between the formwork slab and the truss. This bond is not only achieved during the factory prefabrication stage but is further strengthened during the casting of the formwork slab and the assembly of the truss, ensuring that the formwork slab will not detach or shift during the construction phase.

[0043] Unlike traditional methods that use bolts or external connectors, the embedded anchoring of the double-sided formwork integrated shear wall based on the truss steel skeleton of this invention avoids exposed metal parts and ensures the integrity of the wall surface.

[0044] The spoke reinforcement of the double-sided formwork integrated shear wall based on the truss steel skeleton of the present invention is integrated with the concrete of the formwork plate, and the connection strength increases synchronously with the concrete strength, resulting in high reliability.

[0045] The present invention provides an integrated double-sided formwork shear wall based on a truss steel frame, which eliminates the need for additional perforation or threading, simplifying the formwork plate manufacturing process and reducing costs.

[0046] This invention provides a construction method for an integrated double-sided formwork shear wall based on a truss steel reinforcement frame, comprising the following steps: Two precast shell plates 1 are made, and multiple truss skeleton units 2 are set between the two shell plates 1. The tops of multiple peaks on the other side of the spokes 22 of the multiple truss skeleton units 2 are embedded in the shell plate 1. Hoist the prefabricated two-mold shell plate 1 to the installation position; Connecting bars 3 to the lateral bars 23 of multiple truss frame units 2; Cast-in-place concrete is poured between the two formwork plates 1, so that the cast-in-place concrete covers the truss skeleton unit 2 and the connecting bars 3 to form a double-sided integrated shear wall based on the truss steel skeleton.

[0047] The construction of the double-sided formwork integrated shear wall based on truss steel skeleton of the present invention includes a factory prefabrication stage, an on-site installation stage, and a concrete pouring stage.

[0048] In the factory prefabrication stage, truss frame units are prefabricated, including lateral ribs on both sides, central connecting rods and spoke ribs, with the spoke ribs bent into anchoring sections at the ends.

[0049] During the casting of the formwork slab, the bent anchoring section of the truss skeleton unit is embedded into the concrete of the formwork slab, so that it forms an integral structure with the formwork slab, thus completing the integrated combination of the double-sided formwork slab and the truss.

[0050] Standardized factory production ensures the positioning accuracy of trusses and formwork plates, reducing on-site measurement and adjustment.

[0051] During the on-site installation phase, the prefabricated formwork truss assembly units are hoisted to the foundation position. The overall rigidity of the truss is used to achieve initial stability of the formwork and reduce reliance on temporary supports.

[0052] By inserting and binding connecting bars in the space reserved between the truss frame unit and the formwork plate, the connecting bars, lateral bars, and central connecting rods form an integral steel reinforcement network, thus completing the wall steel reinforcement frame.

[0053] During the concrete pouring stage, the double-sided formwork plates serve as permanent templates, and the truss frame units provide lateral pressure resistance during the concrete pouring process to ensure that the formwork plates do not bulge or shift.

[0054] The anchoring effect of the spoke reinforcement in the concrete of the formwork plate is enhanced synchronously with the concrete hardening process, ensuring overall stability.

[0055] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A double-sided formwork integrated shear wall based on a truss steel reinforcement frame, characterized in that, include: Two mold shell plates, the two mold shell plates being arranged opposite to each other; Multiple truss skeleton units are arranged between the two mold shell plates. Each truss skeleton unit includes a central connecting rod and four spokes. The spokes are wavy. Multiple valley bottoms on one side of each spoke are connected to the central connecting rod. The four spokes are arranged along the circumferential direction of the central connecting rod. Multiple peak tops on the other side of each spoke are embedded in the mold shell plate. Lateral ribs are connected to the middle of each spoke. Connecting bars are lateral bars that connect multiple truss frame units; Cast-in-place concrete is poured between the two formwork plates and covers the truss frame unit and the connecting bars.

2. The double-sided formwork integrated shear wall based on a truss steel frame according to claim 1, characterized in that, The peaks of two of the spokes are embedded in one mold plate, and the peaks of the other two spokes are embedded in another mold plate.

3. The double-sided formwork integrated shear wall based on a truss steel frame according to claim 1, characterized in that, The spoke rib includes multiple U-shaped segments and multiple V-shaped segments, with the U-shaped segments and V-shaped segments arranged alternately. The two limbs of the V-shaped segment are respectively connected to one limb of the two U-shaped segments. The ends of the two limbs of the U-shaped segments and the V-shaped segments are embedded in the mold plate. The closed end of the V-shaped segment is connected to the central connecting rod.

4. The double-sided formwork integrated shear wall based on a truss steel reinforcement frame according to claim 3, characterized in that, The U-shaped segment is arranged along the surface direction of the mold plate.

5. A construction method for a double-sided formwork integrated shear wall based on a truss steel reinforcement skeleton as described in any one of claims 1 to 4, characterized in that, Includes the following steps: Two prefabricated shell plates are used, and multiple truss skeleton units are placed between the two shell plates. The tops of multiple peaks on the other side of the spokes of the multiple truss skeleton units are embedded in the shell plates. The prefabricated two-mold shell plates are hoisted to the installation position; Connecting reinforcement bars to the lateral reinforcement bars of multiple truss frame units; Cast-in-place concrete is poured between the two formwork plates, so that the cast-in-place concrete covers the truss skeleton unit and the connecting bars to form a double-sided integrated shear wall based on the truss steel skeleton.

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