Construction method of high-altitude conjoined steel truss

Abstract

A construction method of a high-altitude one-piece steel truss comprises the following steps of (A) embedding supporting parts; (B) erecting a steel frame protective platform; (C) hoisting the steel frame protective platform and wielding the steel frame protective platform with the supporting parts; (D) erecting the steel frame protective platform to be a movable platform; (E) hoisting a bottom girder; (F) splicing a load-bearing bailey frame on the bottom girder in a sectioned mode, fixing the end of the spliced bailey frame on steel structures of building bodies on two sides to form a bailey frame operation platform; (G) erecting other steel members of the steel truss on the bailey frame operation platform; (H) cutting the supporting parts and hoisting the steel frame protective platform to the ground after finishing the whole steel truss construction. The steel frame protective platform is installed by adopting a direct hoisting mode, accordingly the safe platform for devices and workers to move is formed at the construction position, and the construction method is simple and can improve the construction efficiency and shorten a construction period. In addition, the bailey frame operation platform is adopted for bearing load, and the construction strength can be ensured.

Description

technical field [0001] The invention relates to the field of building technology, in particular to a construction method of a high-altitude conjoined steel truss. Background technique [0002] In recent years, there have been many high-altitude conjoined buildings. During the construction of these buildings, the main structure of the two sides of the building is usually constructed first, and then a corridor is built between the tops of the main buildings on both sides. [0003] At present, the construction process of high-altitude corridors is usually carried out by using the traditional method of building a floor-standing support system or the overall lifting and sliding. Specifically, starting from the ground, scaffolding is overlapped between the main bodies of the buildings on both sides, and the scaffolding is built to the connection. At the predetermined position of the corridor, a bearing platform for placing equipment and standing on the scaffold is formed on the sc...

AI Technical Summary

Problems solved by technology

Although this construction method using scaffolding to assist in the construction of high-altitude conjoined steel trusses can ensure construction safety, the process of erecting and dismantling the scaffolding is cumbersome, which makes the construction period of the entire corridor longer, and the main span of the building on both sides And when the height is large, the overall strength of the scaffold is relatively low, the safety hazard is serious and the cost is high

Therefore, the tonnage of construction equipment on the carrying platform is limited, and some large equipment needs to be placed in other ways

The installation method of overall lifting and overall sliding is to install the building components in place through large-tonnage or long-stroke jacking equipment after the pre-assembly on the ground is completed. This method is mainly limited by the construction height and requires a lifting channel The space is regular, there is no collision and passability, and the cost is high, and the safety hazard is difficult to control