Concrete floor steel truss structure

Abstract

The invention belongs to the technical field of constructional engineering, and particularly relates to a concrete floor steel truss structure. The structure comprises a vertical frame, a transverse frame, a first piston rod, a second piston rod and a balance unit; the vertical frame is supported on the ground; the transverse frame is horizontally arranged on the vertical frame; the balance unit is arranged at the contact position of the vertical frame and the transverse frame; the first piston rod is embedded into the vertical frame, and an output end of the first piston rod is fixedly connected with the balance unit; the second piston rod is symmetrically embedded into the vertical frame relative to the first piston rod, and an output end of the second piston rod is fixedly connected with the balance unit; and an upper cylinder of the second piston rod is connected with a lower cylinder of the first piston rod through a first air pipe, so that the force balance between the compressive stress and the tensile stress on two sides of the steel truss is realized, the tensile stress and the compressive stress borne by the steel truss are reduced in an indirect manner, the deformation degree of the steel truss is reduced, and the water leakage condition caused by the fact that a waterproof layer on the surface of the steel truss is broken by pulling is avoided.

Description

technical field [0001] The invention belongs to the technical field of construction engineering, in particular to a concrete floor steel truss structure. Background technique [0002] Concrete slab steel truss structure is one of the common structural forms in engineering structures, such as awnings, overhanging eaves, external balconies, overhanging corridors, etc. in construction projects. The structure is still essentially a beam-slab structure. Steel trusses refer to trusses made of steel, such as roof structure crane beams, bridges and hydraulic gates of industrial and civil buildings. Steel trusses are commonly used as the main load-bearing components. During the construction process of concrete floor steel truss structures, temporary supports are often used to ensure the installation of components and the pouring of concrete floors, etc., and the temporary supports are removed after the installation of the steel structure is completed and the concrete reaches its age...

AI Technical Summary

Problems solved by technology

[0003] In order to make up for the deficiencies of the existing technology, the top concrete floor at the outermost edge of the steel truss structure of the concrete floor, especially near the root area, produces a relatively large tensile stress, which is prone to tensile cracks, easily cracks the waterproof layer, and causes water seepage. Leakage and other conditions hinder the normal use of the building; the invention proposes a concrete floor steel truss structure

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