TWI745011B - Stair construction structure - Google Patents

Abstract

The present invention is a staircase construction structure, which includes a wall steel bar group; a staircase steel bar group extends laterally from the wall steel bar group; a staircase formwork is arranged below the staircase steel bar group; a first wall formwork is arranged on the first wall surface steel bar group One side; a second wall template is set on the second side of the wall rebar group and located below the stair rebar group; a third wall template is set on the second side of the wall rebar group and located above the stair rebar group; a plurality of kicks The plate is arranged on the bottom edge of the third wall template; and a plurality of mesh pieces, each of which is arranged between the third wall template and the wall surface steel bar group, and the bottom edge is clamped to the staircase steel bar group. These meshes fill up the gap between the second wall formwork and the third wall formwork, which can prevent the side leakage of the wet concrete in the staircase part and affect the wall grouting quality.

Description

Stair construction structure

The invention relates to the construction structure of a building, and particularly refers to a construction structure of a staircase in which a mesh is used to strengthen and separate concrete between the staircase and the wall.

In the current building construction method, because the concrete used for grouting the walls and stairs is different in humidity and composition, the walls and stairs must be grouted separately in two stages. In the first stage of grouting, the stairs are firstly grouted, and after the concrete on the stairs is dry, the second stage of grouting is performed on the walls. Before entering the grouting operation, the wall part will first build a wall steel bar group, in which the steel bars are arranged in a cross and overlap each other. At the same time, a staircase rebar group will be built in the staircase part. In order to increase the structural strength, the stair rebar group will extend laterally into the wall rebar group and overlap with the wall rebar group. The place where the wall surface and the side of the staircase are in contact and overlap is a joint area between the wall and the staircase.

Then, in order to carry out the grouting operation, large formwork will be installed on the inner and outer sides of the wall reinforcement group. However, the part of the wall reinforcement group close to the joining area of the wall and the stairs cannot be provided with a large template. In this case, the splint will be cut to fit the shape of the joining area of the wall and the stairs, and the wall template of a special shape will fill these parts up and down. However, the joint area between the wall and the stairs still lacks isolation measures, and a small piece of wood still needs to be blocked, so that when the stair part is grouted in the first stage, the wet concrete will not pass through the wall and the staircase joint area laterally Leakage and enter the wall, which will affect the quality of wall grouting and reduce the structural strength of the building. However, these small pieces of wooden boards must be removed after the concrete is cured, which not only requires labor but also increases construction costs.

One object of the present invention is to provide a staircase construction structure, which can avoid the problem that the wet concrete of the staircase part will leak out laterally and affect the grouting quality of the wall during the two-stage grouting process, and the construction is simple and can save the construction cost.

In order to achieve the above-mentioned purpose, the staircase construction structure of the present invention includes a wall steel bar group, a staircase steel bar group, a staircase formwork, a first wall formwork, a second wall formwork, a third wall formwork, a plurality of kick plates, and a plurality of nets. The wall surface steel bar group has a first side and an opposite second side; the staircase steel bar group extends laterally from the second side of the wall surface steel bar group; the stair formwork is arranged below the staircase steel bar group; the first A wall template is set on the first side of the wall steel bar group; the second wall template is set on the second side of the wall steel bar group and located below the staircase steel bar group, and the top edge of the second wall template is connected with the staircase template; the The third wall template is arranged on the second side of the wall steel bar group and above the stair steel bar group. The third wall template has a stepped bottom edge with a plurality of transverse extensions and a plurality of longitudinal extensions arranged alternately The kicking plates are arranged at intervals on the longitudinal extension of the bottom edge of the third wall template; the meshes are arranged between the third wall template and the wall reinforcement group and between the two adjacent kicking plates . The top edge of each mesh piece is limited between the transverse extension of the bottom edge of the third wall template and the wall surface steel bar group, and the bottom edge of each mesh piece is clamped to the staircase steel bar group. In this way, the meshes can prevent the side leakage of the wet concrete of the staircase part and affect the grouting quality of the wall. The construction is simple and does not need to be disassembled after the construction, which saves manpower and can reduce the construction cost.

In a preferred embodiment of the present invention, each of the meshes has a plurality of cuts extending upward from the bottom edge for the stair reinforcement group to extend in, so that each of the meshes is clamped to the stair reinforcement group. At the same time, the bottom edge of each mesh is attached to the top edge of the second wall template or the staircase template. Each of the meshes fills up the gap between the second wall surface template and the third wall surface template, thereby completely blocking the side leakage of the wet concrete of the staircase part.

The following describes the technical content and features of the present invention in detail with a preferred embodiment with drawings. As shown in the circle B in Figure 1 and Figures 3 and 4, it is a staircase provided by a preferred embodiment of the present invention. Construction structure 100, the staircase construction structure 100 includes a wall surface steel bar group 10, a staircase steel bar group 20, a staircase template 50, a first wall surface template 60, a second wall surface template 40, a third wall surface template 30, a plurality of A kick plate 70 and a plurality of meshes 80. The wall surface steel bar group 10 has a first side 11 and a second side 12 opposite to the first side 11. The stair reinforcement group 20 extends laterally from the second side 12 of the wall surface reinforcement group 10. The stair template 50 is arranged below the stair reinforcement group 20.

The first wall template 60 is arranged on the first side 11 of the wall steel bar group 10 and can be composed of a plurality of large-scale templates 200. The second wall template 40 is arranged on the second side 12 of the wall rebar group 10 and located below the stair rebar group 20, and can be a splint cut into a specific shape. The top edge of the second wall template 40 is connected to the staircase template 50. The third wall template 30 is arranged on the second side 12 of the wall steel bar group 10 and above the stair steel bar group 20, and can be a splint cut into a specific shape.

As shown in FIG. 3, the third wall template 30 has a stepped bottom edge 33, and the bottom edge 33 has a plurality of lateral extensions 31 and a plurality of longitudinal extensions 32 arranged alternately. The kick plates 70 are arranged at intervals on the longitudinal extension portions 32 of the third wall template 30. Each of the meshes 80 is arranged between two adjacent kick plates 70 and arranged corresponding to the position of the wall and the staircase joint area CA.

Please refer to FIG. 5 and FIG. 5A, each of the mesh sheets 80 has a top edge 81, a bottom edge 82 and two side edges 83. In a preferred embodiment of the present invention, each of the mesh pieces 80 is trapezoidal and can be a metal member with a mesh width of 3 mm, which may be between 2 mm and 4 mm, but it is not limited to this. In this embodiment, the mesh 80 further has a plurality of cutouts 84, 84a and a plurality of perforations 85. The cutouts 84, 84a extend from the bottom edge 82 to the top edge 81 and are connected to a corresponding through hole 85. The cuts 84, 84a allow the stair reinforcement group 20 to extend into and be clamped in the perforations 85. In actual operation, due to the elasticity of the mesh 80, the construction personnel only need to cut corresponding to the position of the stair reinforcement group 20. The cuts 84 and 84a are sufficient, and the perforations 85 will naturally be formed after the steel bars extend into the mesh 80. However, the structure of the mesh piece 80 is not limited to this, and the mesh piece 80 can be fastened to the stair reinforcement group 20 through other structural designs.

Please refer to Figure 3 and Figure 4 at the same time. Each of the meshes 80 is arranged between the third wall template 30 and the wall steel bar group 10. At the same time, each mesh 80 will be located between two adjacent kick plates 70. More specifically, the top edge 81 of each mesh 80 is confined between the lateral extension 31 of the bottom edge 33 of the third wall template 30 and the wall steel bar group 10, and the bottom edge 82 of each mesh 80 is clamped Fix to the stair reinforcement group 20. At the same time, one side edge 83 of each mesh 80 is limited between the longitudinal extension 32 of the bottom edge 33 of the third wall template 30 and the wall surface steel bar group 10.

In a preferred embodiment of the present invention, the top edge 81 of each mesh 80 abuts against the transverse portion 31 of the bottom edge 33 of the third wall template 30, and at the same time one side edge 83 of each mesh 80 abuts against The longitudinal extension 32 at the bottom edge 33 of the third wall template 30. In another preferred embodiment of the present invention, the bottom edge 82 of each mesh 80 is not only clamped to the stair reinforcement group 20, but the bottom edge 82 is also attached to the top edge of the second wall template 40 or the Stair template 50. Through the above-mentioned various arrangements, the mesh 80 fills the gap 300 between the second wall template 40 and the third wall template 30 to achieve an isolation effect.

As shown in Figure 4, before grouting the stairs, the construction personnel only need to squeeze the mesh 80 into the aforementioned predetermined position, and the mesh 80 can block the wet concrete from entering the second wall form 40 through the gap 300. The space formed between the third wall template 30 and the wall steel bar group 10, thereby ensuring that the grouting quality of the wall part is not affected. After the concrete of the stairs is dried and formed, the stair form 50 will be dismantled, and the wall part will be grouted. Then, after the concrete of the wall is also dried and shaped, the first wall form 60, the second wall form 40, and the third wall form 30 are all removed, and the meshes 80 are left in the solidified wall . In other words, the meshes 80 can not only isolate the wet concrete during the grouting process, but also do not need to be dismantled after the grouting is completed, which not only saves manpower but also reduces construction costs. The meshes 80 themselves will also become the wall Part of it strengthens the structural strength of the wall.

To sum up, in the staircase construction structure 100 provided by the present invention, a plurality of mesh pieces 80 corresponding to the joining area CA of the staircase and the wall are arranged between the third wall template 30 and the wall reinforcement group 10, wherein each of the The top edge 81 of the mesh 80 is attached to the third wall template 30, and the bottom edge 82 of each mesh 80 is attached to the second wall template 40. The meshes 80 thereby fill up the second wall template 40 and The gap 300 between the third wall template 30. When implementing the two-stage grouting process, the arrangement of the mesh 80 can prevent the undried concrete from leaking from the side of the stairs to the wall, thereby ensuring that the grouting quality of the wall is not affected by the overflow of the undried concrete from the stairs. In this way, the staircase construction structure 100 provided by the present invention can not only guarantee the construction quality and structural strength of the building. All simple structural modifications or changes made without going beyond the spirit of the present invention shall fall within the scope of the patent application of the present invention.

100: Stair construction structure 200: large template 300: gap 10: Wall surface reinforcement group 11: First side 12: second side 20: Stair reinforcement group 30: Third wall template 31: Cross section 32: Longitudinal section 33: bottom edge 40: Second wall template 50: Stair template 60: The first wall template 70: kick board 80: Mesh 81: top edge 82: bottom edge 83: side edge 84, 84a: incision 85: Piercing CA: The junction area of the stairs and the wall

Figure 1 is a schematic diagram of the stage completion of the staircase construction structure of a preferred embodiment of the present invention; Fig. 2 is a schematic side view of the circle A in Fig. 1; Figure 3 is an enlarged view of the circle B in Figure 1; Fig. 4 is a schematic side view of the circle B in Fig. 1; Figure 5 is a schematic front view of a mesh sheet according to a preferred embodiment of the present invention; Fig. 5A is an enlarged view of the circle C in Fig. 5.

100: Stair construction structure

200: large template

10: Wall surface reinforcement group

20: Stair reinforcement group

30: Third wall template

31: Cross section

32: Longitudinal section

33: bottom edge

40: Second wall template

70: kick board

80: Mesh

CA: The junction area of the stairs and the wall

Claims (7)

A construction structure of stairs, including: A wall surface steel bar group having a first side and an opposite second side; A stair rebar group, which extends laterally from the second side of the wall rebar group; A stair template, located under the steel bar group of the stair; A first wall template, set on the first side of the wall rebar group; A second wall formwork, which is arranged on the second side of the wall rebar group and located below the staircase rebar group, and the top edge of the second wall formwork is connected to the staircase formwork; A third wall formwork is arranged on the second side of the wall rebar group and above the stair rebar group. The third wall formwork has a stepped bottom edge, and the bottom edge has a plurality of transverse extensions and Most longitudinal extensions; A plurality of kick boards are arranged at intervals on the longitudinal extension of the bottom edge of the third wall template; and A plurality of meshes are arranged between the third wall template and the wall steel bar group and between two adjacent kick plates. The top edge of each mesh is limited to the horizontal extension of the bottom edge of the third wall template Between the part and the wall surface steel bar group, the bottom edge of each mesh piece is clamped to the staircase steel bar group. The staircase construction structure according to claim 1, wherein the side edge of each mesh is limited between the longitudinal extension of the bottom edge of the third wall formwork and the wall surface steel bar group. The stair construction structure according to claim 1, wherein each of the mesh has a plurality of cuts extending upward from the bottom edge for the stair reinforcement group to extend in. The staircase construction structure according to claim 3, wherein the bottom edge of each mesh is attached to the top edge of the second wall template or the staircase template. The staircase construction structure according to claim 1, wherein each of the meshes is trapezoidal. The staircase construction structure according to claim 1, wherein the meshes fill up the gap between the second wall template and the third wall template. The stair construction structure described in claim 1, wherein the mesh width of the meshes is between 2~4mm.

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