Jumping type movable lifting and installing method of wavy roof steel structure trusses

Abstract

The invention provides a jumping type movable lifting and installing method of wavy roof steel structure trusses. The jumping type movable lifting and installing method includes the following steps ofS1, making a preparation and paving at least two pavements on a construction field; S2, assembling the trusses to prepare a plurality of space frame bodies; and S3, hoisting the space frame bodies, wherein one space frame body is hoisted by small truck-mounted cranes onto concrete columns at one end of the construction field, the space frame bodies are carried to the adjacent concrete columns, the space frame bodies are carried onto the concrete columns at the other end of the construction field step by step, and in this way, the next space frame bodies are hoisted until all the space frame bodies are hoisted. By means of the installing method, no high-tonnage cranes need to be adopted, only two small-and-medium-sized cranes need to be used for lifting and hoisting, the construction speedis high, the requirements for the construction field are not high, and the method can also be implemented in a project with a narrow field; and no supporting beg-jigs need to be erected, and the construction cost is effectively saved.

Description

technical field [0001] The invention relates to the technical field of steel structure installation, in particular to a jump-type mobile lifting installation method for a large-span corrugated roof steel structure truss. Background technique [0002] With the expansion of economic and cultural construction needs and the improvement of people's appreciation of architecture, architectural functions and architectural shapes are gradually diversified, and large-span space steel structures have developed rapidly in my country. In the face of more and more applications of long-span special-shaped steel structure roofs, traditional construction methods can no longer meet the needs of construction, and changes in construction technology have become inevitable. [0003] At present, there are mainly the following methods for hoisting large-span steel structure trusses: [0004] 1. Divide the steel structure truss into 2-4 sections, and each section is prefabricated and assembled in t...

AI Technical Summary

Problems solved by technology

However, this installation method has the following disadvantages: (1) The self-weight of the truss is large and the installation position is high, so a large-tonnage truck crane is required, which is not conducive to controlling the construction cost; (2) A large number of tires are required during the installation of the truss. frame, which is not conducive to controlling construction costs; (3) large-tonnage truck cranes require an open construction site, which is not suitable for projects with small sites

However, this installation method has the following defects: (1) The roof trusses are assembled in situ on site, with many segments and slow construction progress; (2) Since the trusses are assembled in situ on site, the on-site assembly of the truss structure will be increased to a certain extent Workload and Assembly Errors

However, this installation method has the following defects: (1) Since this push-slip construction method needs to lay a slip track on the top of the column, its scope of application is limited to the case where the elevation of each column top is the same, and it is not suitable for heterogeneous roof steel structures The hoisting of the truss; (2) The sliding construction process is relatively complicated, and the sliding construction needs to be calculated before construction, and the installation accuracy of the sliding track is required to be high during the construction process