Template support system of box type girder cast-in-place concrete floor plate of steel frame construction

Abstract

The invention discloses a template support system of a box type girder cast-in-place concrete floor plate of steel frame construction, which comprises a box type section girder, a bracket, horizontal scaffold steel pipes, vertical scaffold steel pipes, steel pipe fasteners, a wood template, tie bar steel pipes and arris wood, wherein the two horizontal scaffold steel pipes and a plurality of vertical scaffold steel pipes are connected by the steel pipe fasteners to form scaffold steel pipe girders; more than two scaffold steel pipe girders are connected with more than two tie bar steel pipes by the steel pipe fasteners; the bracket is welded to the box type section girder; the lower ends of the scaffold steel pipe girders are arranged at the bracket, the arris wood is arranged at the upper ends of the scaffold steel pipe girders, and the wood template is arranged on the arris wood; the bracket adopts angle iron of 100*10 and has the length of 200mm; the lengths of welding seams of a limb back and a limb tip of the bracket and the box type section girder are not smaller than 100mm respectively, and the height of the welding seams is 6mm. The invention adopts the wood template, has optional manufacture and assembly, omits the push and support of the steel pipes and reduces scene workload. The template support system can carry out multilayer stereo operation, thereby acceleratingthe construction progress.

Description

technical field [0001] The invention relates to the construction field, in particular to a formwork support system for a steel frame structure box girder cast-in-place concrete floor slab. Background technique [0002] Multi-high-rise buildings adopt steel structures, which have the advantages of light weight, good seismic performance, fast construction speed, and low environmental pollution. The use of steel structures in multi-high-rise buildings in my country is becoming more and more common. At present, ordinary cast-in-place concrete slabs and profiled steel-cast-in-place concrete composite slabs are widely used in steel frame structures. [0003] But it also has the following problems: [0004] 1) Ordinary cast-in-place concrete floor slabs need to install a large number of formwork supports on the floor, and the construction progress is slow. [0005] 2) The profiled steel plate needs to be equipped with end anchors, which increases the complexity of construction. ...

AI Technical Summary

Problems solved by technology

[0004] 1) Ordinary cast-in-place concrete floor slabs need to install a large number of formwork supports on the floor, and the construction progress is slow

[0005] 2) The profiled steel plate needs to be equipped with end anchors, which increases the complexity of construction

[0006] 3) If it is necessary to consider the combined effect of profiled steel plate and concrete floor slab, in addition to adopting a special form or special structure, there are also requirements for the durability and fire protection of the steel plate; otherwise, the steel plate is only used as a formwork during the construction of the floor slab, and it will lose its effect after the construction is completed. , consume a large amount of steel

[0007] 4) The profiled steel plate cannot bear the unhardened concrete load and construction load alone, and it is necessary to set up temporary vertical supports between spans, including support trusses and steel pipe top supports supported on the floor, which slows down the construction progress and increases material costs

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