Precast concrete arched underslung wall panel system

Abstract

This invention relates to a precast concrete arc-shaped hanging wall panel system, comprising a supporting steel frame, a truss floor deck, and a shear wall. The supporting steel frame consists of steel columns and beams. The truss floor deck is fixed to the top of the supporting steel frame and connected to the steel beams. The shear wall is installed along the outer side of the supporting steel frame, with its top connected to the truss floor deck and its bottom connected to the hanging steel columns on the steel beams. The shear wall is assembled from multiple L-shaped precast concrete wall panels. Each precast concrete wall panel has connecting ribs at the top for fixing to the truss floor deck and embedded steel plates at the bottom for fixing to the hanging steel columns on the steel beams. This invention utilizes a precast method, enabling standardized and modular production in a factory, simplifying and improving the efficiency of on-site construction, accelerating the on-site construction process, simplifying assembly operations, and increasing construction efficiency.

Description

Technical Field

[0001] This invention belongs to the field of building engineering technology, specifically a precast concrete curved hanging wall panel system. Background Technology

[0002] The curved under-wall panel system is a structure assembled from a shear wall system. The shear wall system uses a series of vertical shear walls to replace the wall and slab components in a frame structure, with the horizontal floor slabs resting on the shear walls. Shear wall systems offer better resistance to lateral displacement than frame structures. Driven by my country's sustainable development philosophy, prefabricated shear wall buildings have become an important component of green building.

[0003] Currently, shear walls, floor slabs, and other structures in shear wall systems are all cast from concrete on-site, requiring the erection of internal and external scaffolding. This traditional shear wall system involves complex connection processes and cumbersome construction procedures, resulting in slow on-site construction progress, low construction efficiency, and unreliable construction quality. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art and to provide a precast concrete curved hanging wall panel system.

[0005] This invention is achieved through the following technical solution:

[0006] A precast concrete curved underwall panel system includes a supporting steel frame, a truss floor slab, and a shear wall.

[0007] The supporting steel frame includes steel columns, with steel beams connecting the columns, and downward-extending hanging steel columns fixed to the bottom of the steel beams.

[0008] The truss floor deck is supported on top of the supporting steel frame and is connected and fixed to the steel beams. Concrete is poured onto the truss floor deck.

[0009] The shear wall is installed along the outside of the supporting steel frame. The top of the shear wall is connected and fixed to the truss floor deck, and the bottom of the shear wall is connected and fixed to the lower steel column.

[0010] The shear wall consists of precast concrete wall panels, each L-shaped. The vertical panels are divided into an upper parapet wall and a lower exterior wall, while the horizontal panels are floor slabs. Angle steel sections running along the height of the vertical panels are fixed to the outer edges on both sides. The reinforcing bars in the vertical panels are bent and extend horizontally from the inner surface to form connecting bars. The connecting bars extend from the junction of the parapet wall and the exterior wall on the vertical panels. Embedded steel plates are fixed to both ends of the inner surface of the horizontal panels, and these embedded steel plates are fixedly connected to the reinforcing bars in the horizontal panels.

[0011] Multiple precast concrete wall panels are assembled sequentially to form a shear wall. After the vertical panels of two adjacent precast concrete wall panels are joined, the angle steel sections on both panels are simultaneously joined and welded together. After the horizontal panels of two adjacent precast concrete wall panels are joined, the embedded steel plates on both panels are simultaneously joined and welded together. The connecting bars on the vertical panels of each precast concrete wall panel are connected and fixed to the truss floor deck. The embedded steel plates on the horizontal panels of each precast concrete wall panel are welded and fixed to the ends of the lower steel columns.

[0012] Furthermore, a square ring is installed around the outer side of the shear wall supporting the steel frame. Two adjacent corners of the square ring are vertical angles, and the other two adjacent corners are rounded angles. The precast concrete wall panel at the vertical angle is based on the L-shaped panel, with a second vertical panel on one side that is perpendicularly connected to both the vertical and horizontal panels. The height of the second vertical panel is the same as that of the vertical panel, and the width of the second vertical panel is the same as the length of the horizontal panel. Angle steel sections that run continuously along the height direction are fixed to the outer edges of the sides of both the vertical and second vertical panels. The reinforcing bars in the vertical and second vertical panels are bent and extend horizontally from their inner surfaces to form connecting bars. The protruding positions of the connecting bars are located at the junction of the parapet wall and the outer wall. Embedded steel plates are fixed to the adjacent ends of the inner surface of the horizontal panel, and the embedded steel plates are fixedly connected to the reinforcing bars in the horizontal panel.

[0013] Furthermore, the reinforcing bars in the horizontal and vertical sections of the precast concrete wall panel are integrally connected reinforcing bars, and are formed as a whole by pouring concrete.

[0014] Furthermore, the reinforcing bars in the transverse slab, the reinforcing bars in the vertical slab, the reinforcing bars in the second vertical slab, and the connecting bars extending outwards of the precast concrete wall panel unit located at the vertical angle are integral connecting bars, and are formed into a whole by pouring concrete.

[0015] Furthermore, the bottom surface of the embedded steel plate is provided with two rows of V-shaped hooks. The top end of the outer side of each row of V-shaped hooks is welded and fixed to the bottom surface of the embedded steel plate. The top end of the inner side of each row of V-shaped hooks is left with a break between it and the bottom surface of the embedded steel plate. Each V-shaped hook is hooked and connected to the reinforcing steel bar in the transverse plate through its break.

[0016] Furthermore, prefabricated sleeves are embedded in the truss floor deck, and studs are installed inside the prefabricated sleeves. The studs are welded and fixed to the steel beams.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] The precast concrete arc-shaped hanging wall panel system of this invention mainly includes precast shear walls, steel beams, steel columns, and truss floor slabs. The shear wall is composed of multiple precast concrete wall panels assembled together, each panel comprising a parapet wall, an exterior wall, and a floor slab. During construction, the precast shear walls (multiple precast concrete wall panels), steel beams, and steel columns are transported to the vicinity of the building for on-site assembly. Compared to existing shear wall systems where shear walls and floor slabs require on-site casting, this invention utilizes precast technology, enabling standardized and modular production in a factory. This simplifies and simplifies on-site construction, significantly accelerating the process. The top of the precast shear wall connects to the truss floor slab, and the bottom connects to the hanging columns on the steel beams, forming a stable lateral force resisting and load-bearing system, simplifying assembly and improving construction efficiency. Attached Figure Description

[0019] The accompanying drawings, which are provided to further illustrate the invention and form part of this application, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention.

[0020] Figure 1 This is the assembly drawing of the system of the present invention.

[0021] Figure 2 This is a schematic diagram showing the connection between the shear wall and the supporting steel frame in the system of the present invention.

[0022] Figure 3 This is a schematic diagram showing the connection between the shear wall and the truss floor slab in the system of the present invention.

[0023] Figure 4 This is a three-dimensional structural diagram of a precast concrete wall panel unit in the system of the present invention.

[0024] Figure 5 This is a top view of a precast concrete wall panel unit in the system of the present invention.

[0025] Figure 6 This is a schematic diagram of the reinforcing steel structure inside a precast concrete wall panel in the system of this invention.

[0026] Figure 7 This is a three-dimensional structural diagram of a precast concrete wall panel unit located at a vertical angle in the system of the present invention.

[0027] Figure 8 This is a top view of a precast concrete wall panel unit located at a vertical angle in the system of the present invention.

[0028] Figure 9This is a schematic diagram of the reinforcing steel structure inside a precast concrete wall panel located at a vertical angle in the system of the present invention.

[0029] Figure 10 This is a schematic diagram of the pre-embedded steel plate in the system of the present invention.

[0030] In the diagram: 1-truss floor deck, 2-shear wall, 3-steel column, 4-steel beam, 5-precast concrete wall panel, 5-1-vertical slab, 5-2-horizontal slab, 6-angle steel section, 7-connecting reinforcement, 8-reinforcing steel bar, 9-embedded steel plate, 10-V-hook, 11-break, 12-precast concrete wall panel located at a vertical angle, 12-1-second vertical slab, 13-hanging steel column. Detailed Implementation

[0031] To enable those skilled in the art to better understand the present invention, the present invention will be further described clearly and completely below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0032] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention, but the invention may also be practiced in other ways different from those described herein; obviously, the embodiments in the specification are only a part of the embodiments of the invention, and not all of them. Example 1

[0033] like Figures 1 to 10 As shown, a precast concrete curved hanging wall panel system includes a supporting steel frame, a truss floor slab 1, and a shear wall 2.

[0034] The supporting steel frame includes steel columns 3, steel beams 4 are connected between the steel columns 3, and a downwardly extending hanging steel column 13 is fixed at the bottom of the steel beam 4.

[0035] The truss floor deck 1 is supported on the top of the supporting steel frame and is connected and fixed to the steel beam 4. Concrete is poured on the truss floor deck 1. Specifically, a prefabricated sleeve is embedded in the truss floor deck 1, and a stud is installed in the prefabricated sleeve. The stud is welded and fixed to the steel beam 4.

[0036] The shear wall 2 is installed along the outside of the supporting steel frame. The top of the shear wall 2 is connected and fixed to the truss floor deck 1, and the bottom of the shear wall 2 is connected and fixed to the lower hanging steel column 13.

[0037] The shear wall 2 includes a precast concrete wall panel 5, which is an L-shaped panel. Its vertical panel 5-1 is divided into an upper parapet wall and a lower exterior wall. Its horizontal panel 5-2 is a floor slab. Angle steel sections 6 are fixed to the outer edges of both sides of the vertical panel 5-1, extending along its height. The reinforcing bars in the vertical panel 5-1 are bent and extend horizontally from the inner surface of the panel to form connecting bars 7. The protruding position of the connecting bars 7 is located at the junction of the parapet wall and the exterior wall on the vertical panel 5-1. Specifically, the reinforcing bars 8 in the horizontal panel 5-2, the reinforcing bars 8 in the vertical panel 5-1, and the connecting bars 7 extending outward are integral connecting bars and are formed as a whole by pouring concrete. Pre-embedded steel plates 9 are fixed at both ends of the inner surface of the transverse plate 5-2. The pre-embedded steel plates 9 are fixedly connected to the reinforcing bars 8 in the transverse plate 5-2. Specifically, two rows of V-shaped hooks 10 are provided on the bottom surface of the pre-embedded steel plates 9. The top end of each row of V-shaped hooks 10 on the outer side is welded and fixed to the bottom surface of the pre-embedded steel plates 9. The top end of each row of V-shaped hooks 10 on the inner side is left with a break 11 between it and the bottom surface of the pre-embedded steel plates 9. Each V-shaped hook 10 is hooked and connected to the reinforcing bars 8 in the transverse plate 5-2 through its break 11.

[0038] Multiple precast concrete wall panels 5 are assembled sequentially to form a shear wall 2. After the vertical panels 5-1 of two adjacent precast concrete wall panels 5 are joined, the angle steel sections 6 on them are simultaneously joined and welded to each other. After the horizontal panels 5-2 of two adjacent precast concrete wall panels 5 are joined, the embedded steel plates 9 on them are simultaneously joined and welded to each other. The connecting bar 7 on the vertical panel 5-1 of each precast concrete wall panel 5 is connected and fixed to the truss floor deck 1. The embedded steel plate 9 on the horizontal panel 5-2 of each precast concrete wall panel 5 is welded and fixed to the end of the lower steel column 13.

[0039] In practical implementation, the shear wall 2 is surrounded by a square ring on the outside of the supporting steel frame. Two adjacent corners of this square ring are vertical angles, and the other two adjacent corners are rounded angles. The precast concrete wall panel 12 located at the vertical angle is based on an L-shaped panel, with a second vertical panel 12-1 on one side that is perpendicularly connected to both the vertical panel 5-1 and the horizontal panel 5-2. The height of the second vertical panel 12-1 is the same as the height of the vertical panel 5-1, and the width of the second vertical panel 12-1 is the same as the length of the horizontal panel 5-2. The side ends of the vertical panel 5-1 and the second vertical panel 12-1 are... Angle steel segments 6 are fixed to the outer edges and run the length of the height. The reinforcing bars 8 in the vertical plate 5-1 and the second vertical plate 12-1 are bent and extend horizontally from their inner surfaces to form connecting bar parts 7. The protruding positions of the connecting bar parts 7 are all located at the junction of the parapet wall and the outer wall. Specifically, the reinforcing bars 8 in the horizontal plate 5-2, the reinforcing bars 8 in the vertical plate 5-1, the reinforcing bars 8 in the second vertical plate 12-1, and the connecting bar parts 7 extending outwards in the precast concrete wall panel 12 located at the vertical angle are integral connecting bars and are formed into a whole by pouring concrete. Two embedded steel plates 9 are fixed to the adjacent ends of the inner surface of the transverse plate 5-2. The embedded steel plates 9 are fixedly connected to the reinforcing bars 8 in the transverse plate 5-2. Specifically, two rows of V-shaped hooks 10 are provided on the bottom surface of the embedded steel plates 9. The top end of each row of V-shaped hooks 10 on the outer side is welded and fixed to the bottom surface of the embedded steel plates 9. The top end of each row of V-shaped hooks 10 on the inner side is left with a break 11 between it and the bottom surface of the embedded steel plates 9. Each V-shaped hook 10 is hooked and connected to the reinforcing bars 8 in the transverse plate 5-2 through its break 11.

[0040] The aforementioned precast concrete curved hanging wall panel system includes steel beams 4 and steel columns 3, which are fabricated in the centralized processing area and then transported to the construction site. The shear wall 2 (including precast concrete wall panel units 5 and precast concrete wall panel units 12 located at the vertical angle) is fabricated on-site. During construction, multiple precast concrete wall panel units 5 and precast concrete wall panel units 12 located at the vertical angle are first assembled to form the shear wall 2 system. Then, the steel beams 4 and steel columns 3 are connected and fixed to form the supporting steel frame. Finally, the steel beams 4 are connected and fixed to the truss floor deck 1, and the precast shear wall 2 system is connected and fixed to the truss floor deck 1 and the steel beams 4.

[0041] During the construction of the precast concrete wall panel unit 5, fair-faced concrete formwork is used. The formwork is configured on-site according to the detailed drawings, and the reinforcing steel is cut according to the design requirements. The fabrication and installation of the reinforcing steel must comply with the specifications and standards. If the embedded parts are large or the anchor bars are long, and they collide with the mesh reinforcement, the position of the reinforcing mesh should be adjusted accordingly based on the position of the embedded parts, and the embedded parts should be pre-fixed within the reinforcing mesh. The protective layer for the reinforcing steel is 15mm. When the mesh is placed into the formwork, precast spacers are used to control the thickness of the protective layer. After the fabricated formwork is assembled, it must be inspected and confirmed to be correct according to the design requirements and formwork quality control standards before concrete is poured. Before pouring concrete, the dimensions of the formwork, the position of the reinforcing steel, and the position of the embedded parts must be checked and verified by quality inspection. The precast concrete wall panel unit 5 can only be lifted when its strength reaches 100% or more of the design strength. During lifting, the force on each lifting point should be uniform and consistent to ensure balance; Installation process of 5 precast concrete wall panel units: Familiarize yourself with the design drawings and check the numbering → Erect and level the scaffolding for the lower plate → Mark the control lines → Verify → Lift the 5 precast concrete wall panel units → Position the 5 precast concrete wall panel units → Alignment → Effective connection of reinforcing bars → Hidden inspection → Acceptance.

[0042] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A precast concrete curved hanging wall panel system, characterized in that: This includes supporting steel frames, truss floor slabs, and shear walls; The supporting steel frame includes steel columns, with steel beams connecting the steel columns, and downward-extending hanging steel columns fixed to the bottom of the steel beams; The truss floor deck is supported on top of the supporting steel frame and is connected and fixed to the steel beams. Concrete is poured onto the truss floor deck. The shear wall is installed along the outside of the supporting steel frame. The top of the shear wall is connected and fixed to the truss floor deck, and the bottom of the shear wall is connected and fixed to the lower steel column. The shear wall consists of precast concrete wall panels, each L-shaped. The vertical panels are divided into an upper parapet wall and a lower exterior wall, while the horizontal panels are floor slabs. Angle steel sections running along the height of the vertical panels are fixed to the outer edges on both sides. The reinforcing bars in the vertical panels are bent and extend horizontally from the inner surface to form connecting bars. The connecting bars extend from the junction of the parapet wall and the exterior wall on the vertical panels. Embedded steel plates are fixed to both ends of the inner surface of the horizontal panels, and these embedded steel plates are fixedly connected to the reinforcing bars in the horizontal panels. Multiple precast concrete wall panels are assembled sequentially to form a shear wall. After the vertical panels of two adjacent precast concrete wall panels are joined, the angle steel sections on both panels are simultaneously joined and welded together. After the horizontal panels of two adjacent precast concrete wall panels are joined, the embedded steel plates on both panels are simultaneously joined and welded together. The connecting bars on the vertical panels of each precast concrete wall panel are connected and fixed to the truss floor deck. The embedded steel plates on the horizontal panels of each precast concrete wall panel are welded and fixed to the ends of the lower steel columns.

2. The precast concrete arc-shaped hanging wall panel system according to claim 1, characterized in that: The shear wall is surrounded by a square ring on the outside of the supporting steel frame. Two adjacent corners of the square ring are vertical angles, and the other two adjacent corners are rounded angles. The precast concrete wall panel at the vertical angle is based on an L-shaped panel, with a second vertical panel on one side that is perpendicular to both the vertical and horizontal panels. The height of the second vertical panel is the same as that of the vertical panel, and the width of the second vertical panel is the same as the length of the horizontal panel. Angle steel sections that run continuously along the height direction are fixed to the outer edges of the sides of both the vertical and second vertical panels. The reinforcing bars in the vertical and second vertical panels are bent and extend horizontally from their inner surfaces to form connecting bars. The protruding positions of the connecting bars are located at the junction of the parapet wall and the outer wall. Embedded steel plates are fixed to the adjacent ends of the inner surface of the horizontal panel, and the embedded steel plates are fixedly connected to the reinforcing bars in the horizontal panel.

3. The precast concrete arc-shaped hanging wall panel system according to claim 1, characterized in that: The reinforcing bars in the horizontal and vertical sections of a precast concrete wall panel are integrally connected and formed by pouring concrete.

4. The precast concrete arc-shaped hanging wall panel system according to claim 2, characterized in that: The reinforcing bars in the horizontal slab, the vertical slab, the second vertical slab, and the connecting bars extending outwards of the precast concrete wall panel located at the vertical angle are integral connecting bars, which are formed into a whole by pouring concrete.

5. The precast concrete curved hanging wall panel system according to claim 3 or 4, characterized in that: The bottom surface of the embedded steel plate is provided with two rows of V-shaped hooks. The top end of the outer side of each row of V-shaped hooks is welded and fixed to the bottom surface of the embedded steel plate. The top end of the inner side of each row of V-shaped hooks is left with a break between it and the bottom surface of the embedded steel plate. Each V-shaped hook is hooked and connected to the stressed steel bar in the transverse plate through its break.

6. The precast concrete arc-shaped hanging wall panel system according to claim 1, characterized in that: Precast sleeves are embedded in the truss floor deck, and studs are installed inside the precast sleeves. The studs are welded and fixed to the steel beams.

Images