Steel pipe truss prestressed concrete composite slab

Abstract

The invention discloses a steel pipe truss prestressed concrete laminated slab, which comprises a reinforced concrete bottom plate and a steel pipe truss. A plurality of longitudinal prestressed steel bars are arranged inside the reinforced concrete bottom plate. The steel pipe truss includes steel pipes and steel pipes welded on both sides. The wavy steel bar, the trough section or / and the lower section of the web bar of the wavy steel bar is transversely bent to form a bent V-shaped supporting force transmission component, and the trough section or / and the transversely bent lower section of the web bar are laterally embedded in the reinforced concrete bottom plate Inside, the vertical lower section of the web bar is embedded in the concrete floor, and the bent V-shaped supporting force-transmitting part is provided with longitudinal prestressed steel bars, and the longitudinal pre-stressed steel bar and the bent V-shaped supporting force-transmitting part are bonded together by concrete. While ensuring the structural strength, it has the characteristics of being convenient for industrialization, standardization, and mechanized production.

Description

technical field [0001] The invention relates to the technical field of lightweight building materials, in particular to steel pipe truss prestressed concrete laminated panels. Background technique [0002] In the existing technical field of lightweight building materials, concrete truss laminated slabs are more and more widely used in the construction industry, because concrete truss laminated slabs can reduce the number of construction formwork and scaffolding in the construction process, improve construction efficiency, and then reduce construction costs. . The existing concrete truss laminated slab is mainly composed of a base plate and a truss, and the concrete truss laminated slab integrated with the steel pipe truss is poured through the base plate. The internal structural strength of the existing concrete truss laminated slab is not guaranteed, the stability of the connection between the truss and the bottom plate is limited, and there is no restriction on the layout...

AI Technical Summary

Problems solved by technology

This kind of steel tube and steel bar composite truss is applied to the prestressed concrete laminated slab. When the components need to be installed, it is inconvenient to lay out the components. When the steel tube truss is manufactured, it is not easy to accurately position and weld, and it is not convenient for mechanized production.

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