Multi-support-point automatic swivel system for extremely-unbalanced swivel bridge and construction method

Abstract

The invention belongs to the technical field of bridge engineering, and discloses a multi-support-point automatic swivel system for an unbalanced swivel bridge and a construction method. According tothe on-site conditions of the bridge to be built, an arc track beam frame with a ball joint as a center and swivel additional support points are arranged in an open space at a certain distance from the ball joint of a swivel pier; an unbalanced swivel is supported by the ball joint and the additional support points, a swivel driving device is arranged at each additional support point, and the multi-support-point swivel system is formed. By means of the system, the unbalanced bending moment of the swivel is greatly reduced, and the stability of the swivel is greatly improved; intelligent support bases with the functions of self-diagnosis, self-adaptation and self-adjustment are adopted as the additional support points, the counter force of the support bases is automatically fed back, the weighing process can be reduced, the time is saved, and the cost is reduced; a swivel driving system adopts a servo hydraulic oil cylinder for achieving continuous automatic jacking, intelligent controland precise positioning in the whole process of the swivel are achieved, and the one-key intelligent swivel construction of the extremely-unbalanced swivel bridge is achieved.

Description

technical field [0001] The invention belongs to the technical field of building bridges, and in particular relates to a multi-support automatic swivel system and a construction method of an extremely unbalanced swivel bridge. Background technique [0002] In order to better meet and comply with the development requirements of my country's complex and changeable traffic roads, a large number of new technologies, new structures, new processes, new materials, new facilities and new schemes appear from time to time, making bridge construction unprecedentedly developed. The construction of bridges has gone from the broad layout in the past to the intertwined and complex space layout today, such as some bridges crossing railways, seas and rivers. In order not to hinder the passage of their traffic arteries, the construction methods must be improved and innovated . In this case, the common construction method will have great potential safety hazards when constructing above the tra...

AI Technical Summary

Problems solved by technology

If you are in a downtown area, sometimes you encounter some buildings that are difficult to demolish or cannot be demolished, even if the demolition can cost a lot of money, in this case there will be an extremely unbalanced swivel, that is, the length of the beams on both sides of the swivel pier is quite different.

The balance weight of this extremely unbalanced swivel is very large, and the counterweight may affect the safety of the bridge structure during construction. Therefore, conventional swivel construction is not suitable for this extremely unbalanced swivel construction, and it is necessary to invent a new type of swivel. body construction method

Images