A special-shaped steel-concrete eaves structure and its construction method

Abstract

The present invention provides a special-shaped steel-concrete eaves structure, comprising: a floor slab formwork, at the front of which there is a steel column; a concrete layer, the upper surface of which is parallel to the upper surface of the floor slab formwork; and floor slab surface steel bars, floor slab bottom steel bars and bending-resistant steel bars embedded in the concrete layer, wherein the floor slab surface steel bars are arranged above the floor slab formwork, the rear end is fixed on the floor slab formwork, and the front end extends out of the front end of the floor slab formwork; the floor slab bottom steel bars are arranged below the floor slab surface steel bars, the rear end is connected to the rear end of the floor slab surface steel bars and bent to fit the surface of the floor slab formwork, the front end extends out of the front end of the floor slab formwork and is bent to be horizontal; the bending-resistant steel bars are arranged below the part where the floor slab bottom steel bars extend out of the front end of the floor slab formwork, the rear end is connected to the steel column, and the front end is connected to the front end of the floor slab bottom steel bars. The beneficial effects of the present invention are as follows: the floor slab surface steel bars, the floor slab bottom steel bars and the bending-resistant steel bars cooperate to form a triangular eaves framework, which is stably lapped with the floor slab formwork, has good stability, improves the load-bearing capacity, and can manufacture more complex eaves.

Description

Technical Field

[0001] The invention relates to the technical field of eaves construction, and in particular to a special-shaped steel-concrete eaves structure and a construction method thereof. Background Art

[0002] The eaves are set at the junction of the roof and the exterior wall of the building. Their function is to drain rainwater from the roof and protect the wall. They are also decorative parts of the building. At present, some venues are steel-concrete structures, and the roof panels are floor decking. Due to the special structure of the floor decking, it is difficult to meet the load and eaves length requirements of the eaves, making it impossible to carry out plain concrete construction, and it is also impossible to complete the complex eaves structure, so the eaves structure needs to be improved. Summary of the invention

[0003] In view of this, in order to solve the problem of difficult construction of complex eaves of the current steel-concrete structure floor deck, an embodiment of the present invention provides a special-shaped steel-concrete eave structure and a construction method thereof.

[0004] An embodiment of the present invention provides a special-shaped steel-concrete eaves structure, comprising:

[0005] A reinforced truss-type floor deck with a steel column at the front;

[0006] A concrete layer poured in front of the floor deck, the upper surface of which is parallel to the upper surface of the floor deck;

[0007] And floor surface steel bars, floor bottom surface steel bars and bending-resistant steel bars embedded in the concrete layer, wherein the floor surface steel bars are arranged above the floor decking, the rear end of the floor surface steel bars is fixed to the floor decking, and the front end extends out of the front end of the floor decking, the floor bottom surface steel bars are arranged below the floor surface steel bars, the rear end of the floor bottom surface steel bars is connected to the rear end of the floor surface steel bars and bent to fit the surface of the floor decking, the front end of the floor bottom surface steel bars extends out of the front end of the floor decking and is bent to a horizontal state, the bending-resistant steel bars are arranged below the part of the floor bottom surface steel bars extending out of the front end of the floor decking, the rear end of the bending-resistant steel bars is connected to the steel column, and the front end is connected to the front end of the floor bottom surface steel bars.

[0008] Furthermore, the floor surface reinforcement is overlapped with the steel column.

[0009] Furthermore, the anti-bending steel bars are provided in plurality, and the plurality of anti-bending steel bars are arranged up and down.

[0010] Furthermore, the front ends of the floor surface steel bars and the anti-bending steel bars are both bent upward, and the front end of the concrete layer is bent upward to form a water retaining sill.

[0011] Furthermore, the front part of the concrete layer is horizontally arranged near the upper surface of the water retaining sill to form a drainage ditch.

[0012] Furthermore, the front ends of the concrete layers have the same elevation.

[0013] In addition, an embodiment of the present invention further provides a construction method for the above-mentioned special-shaped steel-concrete eaves structure, comprising the following steps:

[0014] S1. Arrange floor surface steel bars and floor surface steel bars on the upper surface of the steel bar truss type floor deck, wherein the rear end of the floor surface steel bars is connected to the rear end of the floor surface steel bars and is bent to fit the surface of the floor deck, and the front end of the floor surface steel bars extends out of the front end of the floor deck and is bent to a horizontal state, so that the floor surface steel bars are arranged above the floor surface steel bars and the front end extends out of the floor deck;

[0015] S2, arranging bending-resistant steel bars below the front end of the floor decking plate extending from the floor bottom steel bars, so that the rear end of the bending-resistant steel bars is connected to the steel column of the floor decking plate, and the front end is connected to the front end of the floor bottom steel bars;

[0016] S3. Arrange formwork around the floor surface steel bars, the floor bottom surface steel bars and the bending-resistant steel bars, and pour concrete to form a concrete layer, so that the upper surface of the concrete layer is parallel to the upper surface of the floor deck.

[0017] The beneficial effects brought about by the technical solution provided by the embodiments of the present invention are: a special-shaped steel-concrete eaves structure of the present invention, the floor surface steel bars, the floor bottom surface steel bars and the bending-resistant steel bars cooperate to form a triangular eaves frame, which is firmly overlapped with the floor decking, has good stability, improves the load-bearing capacity, and can manufacture more complex eaves; and the surface of the concrete layer is parallel to the surface of the floor decking and coordinated with other parts of the floor slab, and multiple rows of bending-resistant steel bars are buried inside the cantilevered part of the concrete layer relative to the front end of the floor decking, so as to improve the structural strength and avoid cracking. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the application of a special-shaped steel-concrete eaves structure of the present invention;

[0019] Figure 2 yes Figure 1 A partial enlarged view of the special-shaped steel-concrete eave structure at A in the middle;

[0020] Figure 3 It is a schematic diagram of the internal structure of the special-shaped steel-concrete eaves structure.

[0021] In the figure: 1- floor slab, 2- steel column, 3- concrete layer, 4- water retaining sill, 5- drainage ditch, 6- floor surface steel bars, 7- floor bottom surface steel bars, 8- bending reinforcement. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described below in conjunction with the accompanying drawings. The following is a preferred embodiment of the present invention, which is intended to provide a basic understanding of the present invention, but is not intended to confirm the key or decisive elements of the present invention or to limit the scope of protection.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Please refer to Figure 1 and 2 An embodiment of the present invention provides a special-shaped steel-concrete eaves structure, which is mainly used in the eaves construction of steel-concrete structure buildings such as sports venues, libraries, and exhibition halls. The special-shaped steel-concrete eaves structure mainly includes a floor deck 1 and a concrete layer 3.

[0025] Among them, the floor decking slab 1 is a steel truss floor decking slab, which serves as the roof of the building. A plurality of steel columns 2 are provided at the bottom of the floor decking slab 1 , and the steel columns 2 support the floor decking slab 1 , wherein some of the steel columns 2 are arranged at the front of the floor decking slab 1 .

[0026] The concrete layer 3 is poured in front of the floor deck 1, and the upper surface of the concrete layer 3 is parallel to the upper surface of the floor deck 1, and is consistent with the appearance of the floor deck 1, meeting the requirements of aesthetics and stress. Generally, the front end elevation of the concrete layer 3 is the same, meeting the appearance requirements of the eaves.

[0027] like Figure 3 As shown, the concrete layer 3 is pre-embedded with floor surface steel bars 6, floor bottom surface steel bars 7 and bending-resistant steel bars 8. The floor surface steel bars 6 are arranged above the floor deck 1, the rear end of the floor surface steel bars 6 is fixed on the floor deck 1, and the front end extends out of the front end of the floor deck 1. The floor surface steel bars 6 are approximately parallel to the upper surface of the floor deck 1, so that the floor surface steel bars 6 are evenly distributed in the concrete layer 3, reducing the range of unreinforced concrete.

[0028] The floor surface reinforcement 7 is arranged below the floor surface reinforcement 6. The rear end of the floor surface reinforcement 7 is connected to the rear end of the floor surface reinforcement 6 and is bent to fit with the surface of the floor deck 1. The front end of the floor surface reinforcement 7 extends out of the front end of the floor deck 1 and is bent to a horizontal state. The floor surface reinforcement 7 is bent twice so that the rear end is fixedly connected to the floor surface reinforcement 6, the middle part is fixedly fitted with the floor deck 1, and the front end is horizontally bent to form a horizontal eaves. In addition, when the floor surface reinforcement 7 passes through the steel column, it overlaps with the steel column 2 to achieve stable fixation.

[0029] The bending steel bar 8 is arranged below the front end of the floor surface steel bar 7 extending out of the floor deck 1, and the rear end of the bending steel bar 8 is connected to the steel column 2, and the front end is connected to the front end of the floor surface steel bar 7. The bending steel bar 8, the floor surface steel bar 6 and the floor surface steel bar 7 form a triangle with good stability, and the triangular skeleton structure is used to improve the structural strength and load bearing capacity of the entire eaves. Preferably, the bending steel bar 8 is set in plurality, and the plurality of bending steel bars 8 are arranged up and down on the part of the floor surface steel bar 7 relative to the floor deck 1, so as to further improve the structural strength of the front part of the concrete layer 3 and avoid cracking.

[0030] like Figure 2 and 3 As shown, the front ends of the floor steel bars 7 and the anti-bending steel bars 8 are bent upward, and the front end of the concrete layer 3 is bent upward to form a water retaining sill 4. The front part of the concrete layer 3 is horizontally arranged near the upper surface of the water retaining sill 4 to form a drainage ditch 5 to meet the drainage function of the eaves.

[0031] In addition, if Figure 1 , 2 As shown in FIG. 3 , an embodiment of the present invention further provides a construction method for the above-mentioned special-shaped steel-concrete eaves structure, comprising the following steps:

[0032] S1. Arrange floor surface steel bars 7 and floor surface steel bars 6 on the upper surface of the steel truss type floor decking slab 1, wherein the rear end of the floor surface steel bars 7 is connected to the rear end of the floor surface steel bars 6 and is bent to fit with the surface of the floor decking slab 1, and the front end of the floor surface steel bars 7 extends out of the front end of the floor decking slab 1 and is bent to a horizontal state, so that the floor surface steel bars 6 are arranged above the floor surface steel bars 7 and the front end extends out of the floor decking slab 1.

[0033] S2. Arrange bending steel bars 8 below the front end portion of the floor decking slab 1 extending from the floor surface steel bars 7, so that the rear end of the bending steel bars 8 is connected to the steel column 2 of the floor decking slab 1, and the front end is connected to the front end of the floor surface steel bars 7. The bending steel bars 8, the floor surface steel bars 6 and the floor surface steel bars 7 form a triangle to constitute the internal skeleton of the concrete layer, which has good stability. The triangular skeleton structure is used to improve the structural strength and load-bearing capacity of the entire eaves.

[0034] S3, formwork is arranged around the floor surface steel bars 6, the floor bottom surface steel bars 7 and the bending-resistant steel bars 8, and concrete is poured to form a concrete layer 3, so that the upper surface of the concrete layer 3 is parallel to the upper surface of the floor deck 1. The front part of the formed concrete layer 3 is extended relative to the front end of the floor deck 1 to form the eaves of the building, which is stable and has high structural strength, and can be designed into various complex eaves as needed.

[0035] Furthermore, in order to solve the drainage problem of the eaves, the front ends of the floor steel bars 7 and the anti-bending steel bars 8 are bent upward, and the front end of the concrete layer 3 is bent upward to form a water retaining sill 4. The front part of the concrete layer 3 is horizontally arranged near the upper surface of the water retaining sill 4 to form a drainage ditch 5, which meets the drainage function of the eaves.

[0036] In this article, the directional words such as front, back, top, and bottom involved are defined by the positions of the parts in the drawings and the positions of the parts relative to each other, just for the sake of clarity and convenience in expressing the technical solution. It should be understood that they are relative concepts and can change accordingly according to different ways of use and placement, and the use of the directional words should not limit the scope of protection claimed in this application.

[0037] In the absence of conflict, the above embodiments and features in the embodiments may be combined with each other.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A special-shaped steel-concrete eaves structure, characterized in that, it includes: A steel truss floor slab, with steel columns provided at its front part; A concrete layer cast at the front part of the floor slab, whose upper surface is parallel to the upper surface of the floor slab; And floor surface steel bars, floor bottom steel bars and bending-resistant steel bars embedded in the concrete layer, wherein the floor surface steel bars are arranged above the floor slab, the rear end of the floor surface steel bars is fixed on the floor slab, and the front end extends out of the front end of the floor slab, the floor bottom steel bars are arranged below the floor surface steel bars, the rear end of the floor bottom steel bars is connected to the rear end of the floor surface steel bars and bent to fit the surface of the floor slab, the front end of the floor bottom steel bars extends out of the front end of the floor slab and is bent to a horizontal state, the bending-resistant steel bars are arranged below the part where the floor bottom steel bars extend out of the front end of the floor slab, the rear end of the bending-resistant steel bars is connected to the steel column and the front end is connected to the front end of the floor bottom steel bars; The floor bottom steel bars are lapped with the steel column; The bending-resistant steel bars are arranged in multiple numbers, and the multiple bending-resistant steel bars are arranged vertically.

2. A special-shaped steel-concrete eaves structure according to claim 1, characterized in that: The front ends of the floor bottom steel bars and the front ends of the bending-resistant steel bars are both bent upwards, and the front end of the concrete layer is bent upwards to form a water retaining sill.

3. A special-shaped steel-concrete eaves structure according to claim 2, characterized in that: A drainage ditch is horizontally arranged at the front part of the concrete layer near the upper surface of the water retaining sill.

4. A special-shaped steel-concrete eaves structure according to claim 1, characterized in that: The front end elevations of the concrete layer are the same.

5. A construction method of a special-shaped steel-concrete eaves structure, characterized in that, used for building a special-shaped steel-concrete eaves structure according to any one of claims 1-4, and includes the following steps: S1. Arrange floor bottom steel bars and floor surface steel bars on the upper surface of the steel truss floor slab, wherein make the rear end of the floor bottom steel bars connected to the rear end of the floor surface steel bars and bent to fit the surface of the floor slab, the front end of the floor bottom steel bars extends out of the front end of the floor slab and is bent to a horizontal state, and make the floor surface steel bars arranged above the floor bottom steel bars and the front end extends out of the floor slab; S2. Arrange bending-resistant steel bars below the part where the floor bottom steel bars extend out of the front end of the floor slab, and make the rear end of the bending-resistant steel bars connected to the steel column of the floor slab and the front end connected to the front end of the floor bottom steel bars; S3. Arrange formwork around the floor surface steel bars, the floor bottom steel bars and the bending-resistant steel bars, and pour concrete to form a concrete layer, so that the upper surface of the concrete layer is parallel to the upper surface of the floor slab.

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