A new type of connection node technology between corrugated steel plate and retaining wall

Abstract

The present invention relates to the field of construction, and particularly to a novel node connection process of a corrugated steel plate and a retaining wall. The cast-in-place concrete retaining wall is constructed to a preset height, and the longitudinal steel bars inside the retaining wall are bent after extending out of the retaining wall to form anchor steel bars. The anchor steel bars are similar to the flanging structure of concrete components, and the concrete surface at the top of the retaining wall is roughened; the corrugated steel plate is extended into the retaining wall at the end along the plate rib direction to ensure that the length of more than 75 mm is extended and placed on the retaining wall, and then a plug plate is placed at the end to prevent the cast-in-place concrete from flowing out; after the steel mesh above the corrugated steel plate is tied, it is cast in place together with the anchor steel bars reserved at the top of the retaining wall, and the steel mesh and concrete form a floor slab, and the floor slab and the corrugated steel plate form a combined floor slab. The combined floor slab is connected and fixed to the retaining wall through cast-in-place, and there is no rigid requirement for the lap length of the non-stressed end of the corrugated steel plate on the retaining wall. After adopting the above scheme, it is convenient to implement in actual engineering and reduce the construction difficulty.

Description

Technical Field

[0001] The invention relates to the field of construction, in particular to a novel connection node process of a corrugated steel plate and a retaining wall. Background Art

[0002] Concrete structures have flexible layouts and require high structural integrity. In order to achieve the requirements of integrity, relevant specifications and designs for concrete structures usually cast the retaining walls and beam-column connection nodes in situ. This practice is widely accepted, but it is obviously not applicable to the connection nodes between steel structure columns and concrete walls.

[0003] At present, my country is vigorously promoting the development of green buildings, and the high development of green buildings is inseparable from the development of highly "low-carbon" prefabricated buildings. Prefabricated buildings have the characteristics of "standardized design, factory production, prefabricated construction, integrated decoration, information management, and intelligent application. Compared with traditional buildings, prefabricated buildings can greatly save resources and reduce the generation of garbage and construction dust. In civil buildings, because the connection between concrete walls and steel columns cannot be equipped with a large number of steel bars, it cannot meet the traditional node connection requirements, which seriously limits the development of prefabricated steel structure residential system buildings.

[0004] In the traditional practice of corrugated steel plate composite floors, they are usually used in combination with prefabricated steel structure systems. In this system, the construction technology of connection nodes is already very mature, but there is less research on the connection nodes between corrugated steel plate composite floors and concrete structures.

[0005] Therefore, the inventor conducted further research on this and developed a new type of corrugated steel plate and retaining wall connection node process, which resulted in this case. Summary of the invention

[0006] The purpose of the present invention is to provide a novel corrugated steel plate and retaining wall connection node process, which is easy to implement in actual engineering and reduces the difficulty of construction.

[0007] In order to achieve the above object, the technical solution of the present invention is as follows:

[0008] A new type of corrugated steel plate and retaining wall connection node process, the cast-in-place concrete retaining wall is constructed to a preset height, the longitudinal steel bars inside the retaining wall are extended out of the retaining wall and bent to form anchor steel bars, the anchor steel bars are similar to the flanging structure of concrete components, and the concrete surface on the top of the retaining wall is roughened; the corrugated steel plate is extended into the end along the plate rib direction to ensure that it has a length of more than 75mm and is placed on the retaining wall, and then a plug plate is placed at the end to prevent the cast-in-place concrete from flowing out; after the steel mesh above the corrugated steel plate is tied, it is cast in place together with the anchor steel bars reserved on the top of the retaining wall, the steel mesh and concrete form a floor slab, the floor slab and the corrugated steel plate form a composite floor slab, the composite floor slab is connected and fixed to the retaining wall through cast-in-place, and there is no rigid requirement for the lap length of the non-stress-bearing end of the corrugated steel plate on the retaining wall.

[0009] A plug plate is placed at the end to prevent the concrete layer from flowing out during cast-in-place; the slab reinforcement is tied, and the concrete layer is cast in-place together with the reserved anchor reinforcement on the top of the retaining wall to ensure the safety and reliability of the connection node between the composite slab and the retaining wall; and the corrugated steel plate floor decking itself has a certain rigidity, so support-free casting can be achieved when the span is not large.

[0010] Furthermore, two layers of steel mesh are arranged in the concrete layer cast on the retaining wall and the corrugated steel plate.

[0011] Furthermore, horizontal steel bars perpendicular to the longitudinal steel bars are arranged inside the retaining wall.

[0012] After adopting the above scheme, the present invention has the following advantages compared with the prior art:

[0013] 1) It broadens the application scope of corrugated steel sheets, which is conducive to the use of corrugated steel sheets in prefabricated steel structure systems;

[0014] 2) It is convenient to realize the connection structure between the corrugated steel plate and the retaining wall to meet the various needs of actual projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the present invention;

[0016] Figure 2 is a schematic diagram of a corrugated steel sheet of the present invention from another viewing angle;

[0017] Description of symbols

[0018] Retaining wall 1, longitudinal reinforcement 11, anchor reinforcement 12, horizontal reinforcement 13, corrugated steel plate 2,

[0019] Plug plate 3, concrete layer 4, steel mesh 41. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] As shown in the figure, a new type of corrugated steel plate and retaining wall connection node process is used to construct the cast-in-place concrete retaining wall 1 to a preset height. The retaining wall 1 includes longitudinal steel bars 11 and horizontal steel bars 13. The longitudinal steel bars 11 extend out of the retaining wall 1 and are bent to form anchor steel bars 12. The anchor steel bars 12 are similar to the flanging structure of the concrete component. The anchor steel bars 12 are distributed along the top of the retaining wall 1.

[0022] The concrete surface on the top of the retaining wall 1 is roughened to facilitate subsequent cast-in-place and increase its firm adhesion; the corrugated steel plate 2 is extended into the retaining wall 1 at the end along the plate rib direction to ensure that it has a length of more than 75 mm and is placed on the retaining wall 1 to ensure that the load-bearing end of the corrugated steel plate 2 has sufficient supporting strength; a plug plate 3 is placed at the end of the corrugated steel plate 2 to prevent the cast-in-place concrete from flowing out; after completing the binding of 1-2 layers of steel mesh 41 above the corrugated steel plate 2, cast-in-place concrete together with the reserved anchor steel bars 12 on the top of the retaining wall 1, the steel mesh 41 and the concrete layer form a floor slab, and the floor slab and the corrugated steel plate 2 form a composite floor slab, which is connected and fixed to the retaining wall 1 by cast-in-place, and there is no rigid requirement for the lap length of the non-load-bearing end of the corrugated steel plate 2 on the retaining wall 1.

[0023] This connection structure of the corrugated steel plate 2 and the retaining wall 1 is easy to implement in actual projects, which reduces the difficulty of the construction process. The connection structure of the corrugated steel plate 2 and the retaining wall 1 expands the use scope of the corrugated steel plate 2 in the prefabricated steel structure system and facilitates construction. The combined use of concrete structures in actual projects can facilitate construction and adapt to various needs of actual projects.

[0024] The above are only specific embodiments of the present invention. At the same time, all words such as "upper, lower, left, right, middle" involved in the present invention are for reference only and are not absolute limitations. Any non-substantial changes made using the present invention shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. A new type of corrugated steel plate and retaining wall connection node process, characterized by: The cast-in-place concrete retaining wall is constructed to a preset height. The longitudinal steel bars inside the retaining wall extend out of the retaining wall and are bent to form anchor bars. The anchor bars are similar to the flanging structure of concrete components, and the concrete surface on the top of the retaining wall is roughened. The corrugated steel plate is extended into the retaining wall at the end along the plate rib direction to ensure that it has a length of more than 75 mm, and is placed on the retaining wall. A plug plate is then placed at the end to prevent the cast-in-place concrete from flowing out. After the steel mesh above the corrugated steel plate is tied, it is cast in place together with the anchor bars reserved at the top of the retaining wall. The steel mesh and concrete form a floor slab, and the floor slab and the corrugated steel plate form a composite floor slab. The composite floor slab is connected and fixed to the retaining wall through cast-in-place. Two layers of steel mesh are provided in the concrete layer cast on the retaining wall and the corrugated steel plate. Horizontal steel bars perpendicular to the longitudinal steel bars are provided inside the retaining wall.

Images