A firm connection concrete laminated slab structure

Abstract

The utility model discloses a kind of firm concrete composite slab structure connected, concrete composite slab connecting structure field, including concrete wall body one, the concrete wall body one is inserted with concrete wall body two, and the inside of concrete wall body two is preinstalled with composite slab, and composite slab surface has been poured with concrete, additional reinforcement is preinstalled between the end support groove of composite slab board, structural frame vertical reinforcement is inserted in the composite slab board surface, and support negative reinforcement is inserted in the concrete wall body two. The utility model is placed in the additional reinforcement on the surface of composite slab, and the other side of the additional reinforcement is inserted into concrete wall body one, and the setting of additional reinforcement improves the bearing capacity and rigidity of concrete wall body, so that greater load can be supported, and then ensure that concrete wall body and composite slab pouring use more firm.

Description

Technical Field

[0001] This utility model relates to the field of concrete composite slab connection structures, specifically to a concrete composite slab structure with a strong connection. Background Technology

[0002] Concrete composite slabs are a new type of prefabricated formwork. They are made of fiber-reinforced cement pressure boards made of cement, reinforcing fibers, and other materials as the face, with galvanized steel mesh added in the middle. The back is made of keel and steel truss welded together. They are then made through processes such as mold pouring, high temperature shaping, autoclaving, cutting and grinding. Concrete composite slabs are easy to construct, can be prefabricated in the factory, have a high degree of mechanization, and can greatly shorten the construction period and improve construction efficiency.

[0003] The existing Chinese patent authorization announcement number: CN115538619A, concerning the connection structure between cast-in-place concrete frame beams and concrete composite slabs, addresses the problems of existing methods where the connection between cast-in-place concrete frame beams and concrete composite slabs is fixed through the cast-in-place layer, resulting in limited load-bearing capacity of the slab and low connection strength due to the reinforcement being only embedded inside the frame beams with few connection points. The proposed solution includes a concrete composite slab and two concrete frame beams, each with symmetrically arranged installation insertion chambers. The beneficial effect of this invention is that by inserting the irregularly shaped connecting brackets and rectangular fixing brackets on the concrete composite slab into the installation insertion chambers, and then pushing the unlocking rod, the irregularly shaped connecting brackets and rectangular fixing brackets can be automatically positioned, achieving rapid connection and positioning of the concrete composite slab and concrete frame beams, making them inseparable and greatly increasing the connection strength.

[0004] For example, Chinese Patent Publication No. CN219909355U discloses a connection structure between a cast-in-place concrete frame beam and a composite concrete floor slab. The structure includes a cast-in-place concrete frame, with a composite floor slab assembly installed on the upper surfaces of the two cast-in-place concrete frames. The composite floor slab assembly includes a first precast concrete composite floor slab and a second precast concrete composite floor slab. The first and second precast concrete composite floor slabs are horizontally fixedly connected to opposite sides with a first lug and a second lug, respectively. The upper surface of the first lug and the lower surface of the second lug are slidably connected. In this invention, by fixing stirrups between the precast steel bars of the floor slab and the precast steel bars of the frame, the first and second precast concrete composite floor slabs are connected to the cast-in-place concrete frame as a whole, thereby improving the connection strength between the first and second precast concrete composite floor slabs and the cast-in-place concrete frame.

[0005] The above-mentioned connection structure also has the following problems when in use: the rapid connection and positioning of the concrete composite slab and the concrete frame beam relies on external parts for auxiliary docking. This leads to a weakening of the connection effectiveness of the structure when the structure is in use or under large external forces (such as during an earthquake), resulting in a greater risk to buildings using this structure.

[0006] Therefore, it is necessary to invent a robust concrete composite slab structure to solve the above problems. Utility Model Content

[0007] The purpose of this invention is to provide a robustly connected concrete composite slab structure to address the problem mentioned in the background art where rapid connection and positioning of concrete composite slabs and concrete frame beams relies on external components for auxiliary docking. This weakens the connection effectiveness of the structure during use or under significant external forces (such as earthquakes), leading to greater risks to buildings using this structure.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a firmly connected concrete composite slab structure, comprising a first concrete wall, wherein the first concrete wall and the second concrete wall are interspersed, and the second concrete wall is pre-installed with a composite slab, and the surface of the composite slab is poured with concrete. Additional reinforcing bars are pre-installed between the end support slots of the composite slab, and structural support reinforcing bars are interspersed in the surface of the composite slab. Support negative reinforcing bars are interspersed in the second concrete wall.

[0009] Preferably, the composite slab and the concrete wall are cast as a single unit to ensure a strong connection between the two structures.

[0010] Preferably, an additional reinforcing bar is provided between the end support (intermediate node) of the composite slab and the groove, and both ends of the additional reinforcing bar have 135-degree hooks. The 135-degree stirrups will not separate from the column reinforcement under normal vibration, ensuring the firmness of the wall connection.

[0011] Preferably, an additional reinforcing bar is provided at each slot where the end supports (intermediate nodes) of the composite slab are misaligned. One side of the additional reinforcing bar has a 135-degree hook placed at the slot, and the other side has a 90-degree hook extending into the concrete wall. Providing additional reinforcing bars at the slots where the end supports (intermediate nodes) of the composite slab are misaligned can enhance the integrity and load-bearing capacity of the structure.

[0012] Preferably, the groove of the side support (end node) of the composite slab is provided with additional reinforcing bars, and one side of the additional reinforcing bars is bent at a 135-degree angle and placed in the groove, and the other side of the additional reinforcing bars is bent at a 90-degree angle and extends into the concrete wall to enhance the load-bearing capacity of the overall structure.

[0013] Preferably, at the chamfered position where the composite slab intersects with the concrete wall, additional reinforcing bars are provided on the surface of the composite slab, with one side of the additional reinforcing bars placed on the surface of the composite slab and the other side extending into the concrete wall. The addition of the additional reinforcing bars improves the load-bearing capacity and stiffness of the concrete wall, thereby enabling it to withstand greater loads.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows: This invention improves the load-bearing capacity and rigidity of the concrete wall by setting additional reinforcing bars on the surface of the composite slab, with one side of the additional reinforcing bars placed on the surface of the composite slab and the other side extending into the concrete wall. This allows the concrete wall to withstand greater loads and ensures a more robust concrete wall and composite slab casting process. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a plan view (end node) of the wall connection of this utility model. Figure 2 This is a detailed drawing (end node) of the plate end support of this utility model. Figure 3 This is a plan view of the wall connection of this utility model (middle node); Figure 4 This is a detailed drawing (middle node) of the plate end support of this utility model.

[0017] Explanation of reference numerals in the attached figures: 1. Concrete wall one; 2. Concrete wall two; 3. Structural reinforcement bars; 4. Support negative reinforcement bars; 5. Additional reinforcement bars; 6. Composite slab. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0019] This utility model provides, for example Figure 1-4The diagram shows a firmly connected concrete composite slab structure, including a concrete wall 1, which is interspersed with a concrete wall 2. The concrete wall 1 is pre-installed with a composite slab 6 inside the concrete wall 2, and the surface of the composite slab 6 is poured with concrete. Additional steel bars 5 are pre-installed between the support slots at the ends of the composite slab 6. Structural reinforcing bars 3 are interspersed in the surface of the composite slab 6, and support negative bars 4 are interspersed in the concrete wall 2.

[0020] The composite slab 6 and the concrete wall 2 are cast as an integrated unit, ensuring the firmness of the connection between the two. The connection is made through internal casting, avoiding the use of external connectors. This effectively ensures the firmness of the internal structure itself, increasing the safety of the building using this structure and preventing unnecessary property damage and casualties in case of emergencies.

[0021] An additional steel bar 5 is installed between the end support (intermediate node) of the composite slab 6 and the groove, and both ends of the additional steel bar 5 are bent at 135 degrees.

[0022] The stirrups with a connection angle of 135 degrees will not separate from the column reinforcement under normal vibration, ensuring the firmness of the wall connection.

[0023] For the misaligned slots of the composite slab end support (intermediate node), an additional steel bar 5 is set at each slot, and one side of the additional steel bar 5 is bent at a 135-degree angle and placed at the slot, and the other side of the additional steel bar 5 is bent at a 90-degree angle and extended into the concrete wall 1.

[0024] Adding additional steel bars 5 between the misaligned slots of the end supports (intermediate nodes) of the composite slab 6 can enhance the integrity and load-bearing capacity of the structure, thereby ensuring the overall safety of the structure.

[0025] Additional steel bars 5 are provided in the groove of the side support (end node) of the composite slab 6, and one side of the additional steel bar 5 is bent at a 135-degree angle and placed in the groove, and the other side of the additional steel bar 5 is bent at a 90-degree angle and extends into the concrete wall 1 to enhance the load-bearing capacity of the overall structure.

[0026] At the chamfered position where the composite slab 6 intersects with the concrete wall 1, additional reinforcing bars 5 are provided on the surface of the composite slab 6. One side of the additional reinforcing bars 5 is placed on the surface of the composite slab 6, and the other side of the additional reinforcing bars 5 extends into the concrete wall 1. This can be used to enhance the load-bearing capacity of the overall structure and ensure the safety of the structure.

[0027] The addition of additional steel bars 5 improves the load-bearing capacity and rigidity of the concrete wall, enabling it to withstand greater loads and ensuring high safety performance of buildings using this structure under subsequent external forces and in case of emergencies. This can effectively avoid unnecessary property damage and casualties.

[0028] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A firmly connected concrete composite slab structure comprising a concrete wall body (1), characterized in that, The concrete wall 1 (1) and the concrete wall 2 (2) are interspersed, and the interior of the concrete wall 2 (2) is pre-installed with a composite slab (6), and the surface of the composite slab (6) is poured with concrete. Additional steel bars (5) are pre-installed between the support slots at the ends of the composite slab (6), and structural support steel bars (3) are interspersed in the surface of the composite slab (6). Support negative bars (4) are interspersed in the concrete wall 2 (2).

2. A secure connection of concrete laminated slab structure according to claim 1, characterized in that, The composite slab (6) and the concrete wall (2) are cast as an integral unit.

3. The firmly connected composite concrete slab structure according to claim 2, characterized in that, An additional steel bar (5) is provided between the end support of the composite plate (6) and the groove, and both ends of the additional steel bar (5) are bent at 135 degrees.

4. A secure jointed concrete composite slab structure according to claim 3, wherein, The composite slab (6) has an additional steel bar (5) installed at each slot where the end support is not aligned. One side of the additional steel bar (5) has a 135-degree hook placed at the slot, and the other side of the additional steel bar (5) has a 90-degree hook extending into the concrete wall (1).

5. A secure jointed concrete composite slab structure according to claim 4, wherein, The groove of the side support of the composite slab (6) is provided with additional steel bars (5), and one side of the additional steel bars (5) is bent at 135 degrees and placed in the groove, and the other side of the additional steel bars (5) is bent at 90 degrees and extends into the concrete wall (1).

6. A secure jointed concrete composite slab structure according to claim 5, wherein, At the corner where the composite slab (6) intersects with the concrete wall (1), an additional steel bar (5) is provided on the surface of the composite slab (6), with one side of the additional steel bar (5) placed on the surface of the composite slab (6) and the other side of the additional steel bar (5) extending into the concrete wall (1).

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