Light empty steel frame plywood formwork and assembling method

Abstract

The invention relates to a light empty steel frame plywood formwork being suitable for manual assembling and disassembling in construction engineering. An empty steel side rib adopts a step section, a first step is convenient for inserting, laying and fixing a glued board with 9 mm or 12 mm, and a second step is conveniently connected with a hook-on clamping apparatus of moldboard blocks to clamp; and a 'Z' shape or 'single ' shape section is adopted for a true stomach steel rib, an end part and the empty steel side rib are welded to form a bearing strength steel frame, a rivet or a countersunk rivet is fixedly connected with inner and outer steel ribs through a plywood panel, and the moldboard blocks are connected by the hook-on clamping apparatus to form a large area moulding board. The light empty steel frame plywood formwork provided by the invention is accompanied with the advantages of portability and flexible assembly of the traditional combined steel moulding plate with cross-sectional height of 55 mm, and can be mixed with a general glued board and a wood beam formwork manner; and the weight of each square meter moulding board is less than 25 kilos, the rigidity of a steel frame is improved, and the reduplicate turnover utilized times of the moulding board are increased.

Description

technical field [0001] The invention relates to a light-weight external rib hollow steel frame plywood formwork suitable for manual assembly and disassembly of formwork in construction engineering cast-in-place concrete construction and an assembly method thereof, belonging to the field of formwork engineering in construction engineering construction. Background technique [0002] Formwork is a model for pouring concrete and shaping it in the construction of cast-in-place concrete structures. The formwork includes panels and back corrugations that support panels. At present, the formwork materials used for manual assembly and disassembly on the construction site use wood plywood as the panel, and wooden squares or steel pipes with a diameter of 48mm as the back corrugated. waste of formwork material. On the one hand, my country is a country with a shortage of forest resources. The uneconomical use of wood in civil construction sites is not conducive to the protection of li...

AI Technical Summary

Problems solved by technology

[0005] Technical problem: In order to solve the current existing problems, the present invention provides a kind of external rib height 55mm or 65mm-based light-duty hollow steel frame plywood formwork

Use stepped hollow steel outer ribs to solve the problem of poor rigidity and easy warpage of the solid web steel outer ribs of known combined steel formwork and steel frame plywood; use wood plywood, bamboo plywood or other composite material boards embedded in steel ribs to solve the construction site Workers no longer saw the problem of cutting large plywood at will; use tool-type light-weight hollow steel frame plywood to solve the problem of effectively increasing the number of repeated turnover times, and control the weight of a single formwork within 30 kg, which is suitable for the physical strength of Chinese construction workers and labor intensity

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