Forming-tool-type staircase formwork system and constructing method thereof

Abstract

Disclosed are a forming-tool-type staircase formwork system and a constructing method thereof. A steel support is arranged between lateral formworks of the forming-tool-type staircase formwork system, and the steel support comprises two supporting frames and transverse main joist steel tubes for connecting the supporting frames. The supporting frames comprise longitudinal main joist steel tubes and angle steel supporting frame bodies on the bottom surfaces. The angle steel supporting frame bodies are arranged in the mode that the angle steel supporting frame bodies correspond to stepping lateral plates one to one, and vertical angle steel of the angle steel supporting frame bodies are connected with the stepping lateral plates through self-made connecting pieces. According to the forming-tool-type staircase formwork system, the axis of a staircase is located accurately, the geometric dimension of the staircase and the flatness of the forming face of the staircase are effectively controlled, the problems that in traditional construction, a stair formwork is prone to deflecting and the concrete forming quality is poor are solved, and the problems that in a fully-closed staircase formwork, concrete construction and vibration are inconvenient, many air bubbles exist on the surface after forming and the cost is high are also solved. The method is simple, construction is convenient, the quality is reliable, the cost is low and the method is suitable for formworks of high-rise building concrete-slab-type staircases.

Description

Technical field [0001] The invention relates to the technical field of staircase formwork construction, in particular to a shaping tool type staircase formwork system and its construction method suitable for the construction of high-rise building concrete slab stairs. technical background [0002] With the continuous expansion of the construction scale of domestic high-rise buildings, the stairwells of high-rise buildings are generally designed in the form of shear wall structure and slab stairs. Because the shear wall is usually formed by pouring concrete at one time during construction, and no construction joints are left, and the slab stairs are generally not constructed at the same time as the shear wall, which makes the construction quality control of the stairs very difficult. [0003] At present, technicians in staircase construction generally follow their own habits, resulting in large inconsistencies in the setting of formwork and formwork during the construction process. ...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a stereotyped tool-type stair formwork system and its construction method. The purpose is to solve the problem of difficulty in controlling the forming quality of the formwork such as surface flatness and geometric dimensions by using the traditional ladder formwork support method, and the next step of decoration. Before the special repair process, special beating and repair work is required, the processing process is cumbersome and the workload is huge, and a large amount of construction waste is generated, time-consuming and material-consuming, and cannot meet the requirements of economic and environmental protection; it also solves the problems of fully enclosed ladder formwork support The design method is inconvenient for concrete construction and vibration, and there are many bubbles on the surface, which affects the appearance quality and high cost

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