Double steel plate and concrete composite wall and construction method thereof

Abstract

The invention discloses a double steel plate and concrete composite wall. The double steel plate and concrete composite wall comprises a double-steel-plate layer and a concrete layer; the double-steel-plate layer comprises a first steel plate and a second steel plate which serve as formworks of concrete, the concrete is poured and then solidified, and then the concrete layer is formed; transversestuds and longitudinal stiffening ribs are welded to the inner surfaces of the first steel plate and the second steel plate, connecting parts are arranged on the longitudinal stiffening ribs of the second steel plate, and longitudinal studs are welded to the positions, corresponding to the longitudinal stiffening ribs of the first steel plate, of the other ends of the connecting parts; and the longitudinal studs can penetrate though circular holes and thus fix the first steel plate and the second steel plate. According to the double steel plates in the double steel plate and concrete compositewall, the lateral stiffness of the composite wall can be improved, seismic performance can be improved, the anti-impact and anti-knock capacity of the composite wall can further be enhanced, and thestructural emergency capacity can further be improved; and the double steel plate composite wall is easy to constitute, all the components can be prefabricated and produced in advance, a constructionsite adopts full-connecting-piece assembly, flexibility is high, construction is convenient and fast, the cost is low, and promotion is facilitated.

Description

technical field [0001] The invention belongs to the technical field of building structures, and in particular relates to a double steel plate concrete composite wall and a construction method thereof. Background technique [0002] Shear walls are used for walls that mainly bear horizontal and vertical loads caused by wind loads or earthquakes to prevent structural shear damage. Because of their excellent seismic performance, they are widely used in high-rise structures. Traditional shear walls Made of reinforced concrete. However, its construction is troublesome, consumes a lot of human resources, and its efficiency is often low. For this reason, many researchers have proposed a new type of double steel plate concrete shear wall, and proved its excellent seismic performance through experimental numerical analysis. This type of double steel plate concrete shear wall is convenient for construction and saves formwork, which is more conducive to shortening the construction peri...

AI Technical Summary

Problems solved by technology

However, there are still many solutions for the connection structure of steel plate and concrete.

[0003] Notification number CN 104929274 A discloses a fireproof steel plate concrete composite shear wall, which uses a large number of steel pipes to connect two outsourcing steel plates, but this method has great technical difficulties, because when the steel pipes are connected to one side After the steel plate is welded, there is no room for operation to weld the steel pipe with another steel plate; and the announcement number CN207892080 U discloses a steel plate concrete composite shear wall, which directly makes the outer steel plate into a closed form. Up and down connection, there is no way to realize the connection between horizontal and vertical components (frame columns, etc.), and the application is very limited; publication number CN 108894360 A discloses a prefabricated embedded damping interlayer double steel plate concrete composite shear wall and its installation method. In the scheme, the double steel plate is connected by bolts on the outer surface. In addition to the heavy workload, this method will also cause the outer surface to be uneven, which will further affect the later decoration

In addition, the above-mentioned patents also have a general disadvantage that the connection between the steel plate and the concrete is not very reliable, and the contact surface between the steel plate and the concrete is prone to disengagement, which greatly reduces its structural performance such as earthquake resistance and shear resistance.

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