Assembly type prefabricated steel bar truss non-dismantling formwork system and manufacturing method thereof

Abstract

The invention discloses an assembly type prefabricated steel bar truss non-dismantling formwork system. The system is characterized by involving a prefabricated integral formwork, at least one steel bar truss and a non-dismantling formwork compatible with concrete, wherein the prefabricated integral formwork comprises transverse steel components and longitudinal steel components, and the transverse steel components and the longitudinal steel components are welded into a frame; the lower surface of the welded prefabricated integral framework is a reference plane; the at least one steel bar truss is in lap joint to the upper surface of the prefabricated integral formwork along the direction of the transverse steel components or the longitudinal steel components; lower chord bars of the at least one steel bar truss are in lap joint to the upper surface of the prefabricated integral formwork, and are fixedly connected with the prefabricated integral formwork through welding or binding; thenon-dismantling formwork is laid on the reference plane side of the prefabricated integral formwork; and the non-dismantling formwork is fixedly connected with the prefabricated integral formwork through a fastener. The invention further discloses a manufacturing method of the non-dismantling formwork system. The assembly type prefabricated steel bar truss non-dismantling formwork system has theadvantages of being simple in structure, convenient to machine, capable of improving construction efficiency, good in rigidity and the like.

Description

technical field [0001] The invention belongs to the technical field of construction engineering, in particular to an assembly-type prefabricated steel truss truss-free formwork system and a manufacturing method thereof. Background technique [0002] At present, there are mainly two types of floor slabs for buildings, one is prefabricated slabs, and the other is cast-in-place concrete slabs. The prefabricated slab floor is installed by prefabricating on the ground and hoisting on site. The advantage is that the construction progress is accelerated and the cost is low. However, there is no effective connection between the existing prefabricated slab floor and the wall. When encountering natural disasters such as earthquakes, it is easy to loosen and fall off, causing property damage and even casualties. In addition, after the existing prefabricated slabs are assembled, there are certain gaps between the slabs, and improper handling will cause cracks in the ceiling, which not ...

AI Technical Summary

Problems solved by technology

During the construction of prefabricated residential buildings with steel trusses and galvanized bottom formwork, there are problems with welded steel truss floor decks: a) It is difficult to remove the galvanized bottom formwork from the bottom of the slab; b) Corrosion of the steel truss footing affects the roof Decoration; c) The foot of the steel truss will sag and deform when the galvanized formwork is removed, which will affect the whitewashing at the bottom of the floor; d) The labor intensity is high and the labor cost is high; During the construction process, the prefabricated reinforced truss floor deck has the following problems: a) the use of thicker galvanized steel formwork greatly increases the cost of materials; b) the connection between the reinforced truss and the bottom formwork is inefficient. ; c) The number of repeated use of galvanized templates and connectors is relatively low; d) There are problems of large labor, high labor costs and high labor intensity

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