Large tonnage tower crane oversized load attachment wall structure used in high wind environment

Abstract

The invention discloses a large tonnage tower crane oversized load attachment wall structure used in the high wind environment. The large tonnage tower crane oversized load attachment structure is composed of reinforced rebar net slices, a connecting seat, steel bars, an anchor socket, finish rolling thread rebars, an attached rod and hinge pins, wherein the connecting seat and the anchor socket are fixed on the two sides of the tower wall of a main tower separately; and connecting ear plates at the two ends of the attached rod are connected with a tower crane attached frame and the connectingseat through the hinge pins. The attachment wall structure is high in bearing capacity; and a single attachment wall rod piece can bear 4000 kN, so that the arrangement quantity of the tower crane attachment wall used in the high wind environment throughout the year can be greatly reduced, the construction efficiency of the main tower is improved, the problem that the tower crane restricts the construction working efficiency of the main tower of a cable-stayed bridge in frequent monsoon and typhoon affected environment in the high wind environment is solved, the influence of the high wind environment to the construction of the main tower is greatly lowered, the construction period of the main tower of the project can be effectively ensured, and the construction cost is lowered. The largetonnage tower crane oversized load attachment wall structure is simple and novel, high in bearing capacity, definite in stress and easy to mount and has higher economic benefit and social benefit.

Description

technical field [0001] The invention relates to bridge construction facilities, in particular to a wall-attached structure of a large-tonnage tower crane with a super-large load under the environment of strong winds and typhoons all the year round. Background technique [0002] With the rapid development of my country's economy and society, the scale of infrastructure construction continues to increase, and bridge construction is changing with each passing day. There are more and more long-span cable-stayed bridges in areas such as oceans and mountainous areas that are under harsh natural conditions and are under strong winds all the year round. [0003] During the construction of the main tower of a long-span cable-stayed bridge, a large-tonnage tower crane is an indispensable large-scale construction facility, and the wall attached to the tower crane is an important structure to ensure the safety and normal operation of the tower crane structure. The construction process o...

AI Technical Summary

Problems solved by technology

[0005] When the wall-attached structure of the conventional tower crane is used in areas with strong winds, monsoons, and typhoons all year round, such as seas or mountainous areas, there are the following disadvantages: 1. Due to the large wind load, especially in the marine environment frequently affected by monsoons and typhoons. For the construction of the main tower, if the number of attached walls is arranged in a conventional way, the force of the attached wall structure is huge. The force of the attached wall structure is within 1000kN in conventional methods, and the structural force cannot meet the requirements, and the attached wall structure cannot be realized; 2. Adopt conventional methods When attaching a wall structure, in order to make the attached wall structure meet the force requirements, the solution is to increase the number of attached walls while reducing the height of the free cantilever of the tower crane, which will lead to frequent installation of the attached wall and lifting of the tower crane. The effective working time of the environment itself is limited, and the installation of the attached wall and the lifting of the tower crane occupy this limited time resource. If the tower crane is not lifted, the main tower cannot continue to be constructed, which will greatly affect the main tower. The construction efficiency of the tower will affect the total construction period and construction cost

Images