Method for supporting framework of concrete beam through suspension truss

Abstract

The invention discloses a method for supporting a framework of a concrete beam through a suspension truss. The method includes the following steps: (a). designing and manufacturing of the truss and a steel corbel; (b). vertical supporting selection; (c). steel corbel installing; (d). truss hoisting; (e). setting up of a scaffold and a guardrail; (f). setting up of the framework of the concrete beam; and (g). conducting implementation and checking and accepting. The method is suitable for construction members of cast-in-place concrete beams or cast-in-place concrete plates, the framework is supported through the suspension truss, a traditional floor type mode of supporting the framework through a steel pipe is changed, a supporting material is saved, a construction period is shortened, construction cost is reduced, and a construction process is simplified.

Description

technical field [0001] The invention relates to the technology of cast-in-place concrete beams in the technical field of construction engineering, in particular to a formwork support method for suspended trusses of concrete beams. Background technique [0002] In the construction process of cast-in-place concrete beams, the support of formwork is the key to the construction of concrete beams. In order to ensure the construction quality of the concrete beam and prevent the displacement and deformation of the formwork during the pouring process, the bottom of the formwork must have sufficient support. At present, the formwork support of cast-in-place concrete beams is supported by floor-to-ceiling steel pipes, especially when the height of the building is high, which makes the construction of floor-to-ceiling steel pipe supports more difficult, and the floor-to-ceiling steel pipes caused by the height of the storey appear pillars Deformation and instability of pressur...

AI Technical Summary

Problems solved by technology

At present, the formwork support of cast-in-place concrete beams is supported by floor-to-ceiling steel pipes, especially when the height of the building is high, which makes the construction of floor-to-ceiling steel pipe supports more difficult, and the floor-to-ceiling steel pipes caused by the height of the storey appear pillars Deformation and instability of pressure bars increase; moreover, for the construction of cast-in-place concrete beams at the bottom, since the floor-type steel pipe supports are directly seated on the foundation, the settlement of the foundation itself and the displacement of the floor-type steel pipes cause the formwork to deform; , affect the construction quality of concrete beams, and in severe cases, lead to excessive deflection of cast-in-place concrete beams and even accidents

The problem of the support method of floor-standing steel pipes is: when the clearance height of the beam is high, the amount of formwork support steel pipes is large, and the amount of diagonal braces and scissors braces is greatly increased; for foundation soil with high water content and uneven terrain , resulting in long foundation treatment period, high labor intensity, high construction cost and long construction period

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