Composite Formwork System and Construction Method of Large Cantilever Beam and Slab

Abstract

The invention relates to a large cantilever beam board combined type formwork supporting system. The large cantilever beam board combined type formwork supporting system mainly comprises: a cantilever beam, a connecting beam, a steel wire rope, an inclined strut, a pre-pressing water bag, a bottom adjusting part, a jack, a U-shaped bolt, a turnbuckle, a bottom-layer protection board, an anti-sliding angle steel board and an angle steel clamp. The invention further relates to a construction method of the large cantilever beam board combined type formwork supporting system; the construction method mainly comprises the following steps: (1) setting the bottom adjusting part; (2) manufacturing and mounting the cantilever beam; (3) mounting the bottom inclined strut; (4) mounting the steel wire rope; (5) erecting a formwork support; (6) pre-pressing the supporting system; (7) carrying out concrete pouring construction. The structure provided by the invention is convenient to detach and convenient to pre-press; the cantilever beam supporting system has a multi-safety effect through the combined action of flexible unloading of the steel wire rope, a lower supporting structure and the bottom adjusting part, and the safety of cantilever beam supporting is sufficiently guaranteed; a tool type metal pressing protection board is arranged on a bottom layer of a frame body, so that the frame body is safe to erect and the economic and technical benefits are relatively good.

Description

technical field [0001] The invention relates to a large cantilevered beam-slab composite formwork system, in particular to a large cantilevered beam-slab based on a composite formwork system and a construction method, which belongs to the field of housing construction engineering and is suitable for cantilevered scaffolding and cantilevered slabs Formwork support construction. Background technique [0002] With the rapid development of my country's economy, high-rise buildings are built higher and higher. In engineering construction, ordinary floor-standing steel pipe scaffolding is increasingly unable to meet the needs of construction. In recent years, in order to ensure the peripheral edge protection and exterior wall decoration and the safety of the large cantilever beam and slab support system during the construction of the main structure of high-rise buildings, the technology of steel cantilever steel pipe scaffolding with steel cantilever fasteners has become more and ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a large cantilever beam-slab composite formwork support system for the defects of low construction safety, cumbersome preloading process, and low construction efficiency of the traditional cantilever support system, which have certain potential safety hazards. The formwork support system includes the fixed structure at the anchorage end of the cantilever beam and the composite support system such as the diagonal brace at the bottom of the cantilever beam and the cable-stayed steel wire rope.

Images