A support system for high-rise building formwork

Abstract

The invention relates to a supporting system of high-rise building floor formworks, and belongs to the field of constructional engineering. The supporting system comprises formworks for constructing floor slabs, primary beams, secondary beams and upright columns and a supporting frame for supporting the formworks. The supporting frame comprises supporting rods and horizontal rods for connecting and fixing the supporting rods, and horizontal reinforced frames fixedly connected with the supporting rods respectively are arranged at the bottom and the top of the supporting frame. The supporting rods for supporting formworks of the floor slabs and the secondary beams are upright rods which are arranged at equal interval vertically; the supporting rods for supporting the formworks of the primary beams are a plurality of groups of diagonal rods I arranged obliquely, and diagonal rods II are arranged on two sides of the formworks of the primary beams to serve as bridging; the supporting rods for supporting the formworks of the floor slabs around the upright columns include diagonal rods III, and the horizontal rods at the same interval are arranged among the upright rods, among the diagonal rods I and among the diagonal rods II in a crisscross manner. The supporting system can meet construction requirements for large formworks with high story height, large span and space during construction, and cannot damage the lower load-bearing floor slab.

Description

technical field [0001] The invention belongs to the field of construction engineering, in particular to a framework system for stably supporting a large-scale formwork with a high floor height, a large span and a large space. Background technique [0002] In the construction industry, more and more floor buildings adopt the integral pouring method. In the construction process, steel pipes are first used as support rods to build support frames, and fixed formwork is installed on the support frame corresponding to the load-bearing beams and floor slabs. Block out the shape of the load-bearing beams, floor slabs, and columns, build a steel frame, and pour concrete to form the overall structure of the floor. The floor height of a general building is 3 to 5 meters, and the span will not be too large. At this time, the length of the supporting frame steel pipe is lower than the height of the floor, and it will not bend when it is supported vertically, so it can be supported evenly...

AI Technical Summary

Problems solved by technology

Due to the large span, large floor height, and large space of the building, especially when the upper floor is being constructed, the supporting surface (ie, the load-bearing layer) of the support system (ie, the support frame body) is on the structural layer of the lower floor, and the lower floor When used as a load-bearing layer, the support system under the lower floor slab has often been removed due to construction needs. At this time, the lower floor slab as a load-bearing layer not only bears the weight of the upper floor to be poured, but also supports the formwork and support of the upper floor to be poured. The weight of the bar system, although the conventional support system built at equal intervals can make the force points of the lower floor evenly stressed, but due to the large span of the lower floor, the loads that the center and edge of the lower floor can bear are not consistent, so It is very unsafe for the overall support system with equal spacing to only rely on the structural layer of the lower floor.

[0003] The overall support system arranged at equal intervals is to use fasteners to connect vertically arranged steel pipes (that is, support rods) with horizontally arranged steel pipes (that is, horizontal rods) to form a full-scale scaffolding. The fastener-type full-scale scaffolding is used as a traditional support. Form, the bearing capacity of the vertical pole is easily affected by various factors. For example, the fasteners connecting the vertical and horizontal steel pipes are fastened to the specified torque value by manpower. If the operation is not in place, its anti-sliding force and stability will be affected.

At present, the stability control of high-rise formwork support system by those skilled in the art is still in the semi-empirical and semi-theoretical stage, and there are many instability accidents, which do not meet the construction requirements of high-rise formwork support system. The support frame system even serves as the lower floor of the load-bearing layer are likely to be defective

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