Oblique Damping Constraint System of Main Girder of Cable-Stayed Bridge

Abstract

An oblique damping restraint system for main girders of cable-stayed bridges, relating to the technical field of civil engineering, is composed of a group of obliquely arranged dampers, one end of which is connected to the main girder of the cable-stayed bridge, and the other end is connected to the For the cable tower, the group of dampers is arranged symmetrically on both sides of the cable tower and symmetrically arranged along the longitudinal axis of the cable-stayed bridge; the dampers installed obliquely are based on the horizontal plane, and there is an included angle between the damper installation axis and the longitudinal axis of the main girder , providing both longitudinal and transverse damping constraints on the girder. The present invention integrates four technologies of "vibration and anti-seismic, anti-vibration and anti-vibration, two-way control, and limited position" into one, and creates a brand-new damping and restraint system for the main girder of cable-stayed bridges, which fills a gap in bridge damping and vibration reduction technology. A new standard for bridge damping and vibration reduction technology is proposed; bridge vibration is fully controlled, safety, durability and economy are guaranteed; the structure is simplified, and the conditions for accessibility, detection, maintenance and replacement are better.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to an oblique damping restraint system for a main girder of a cable-stayed bridge. Background technique [0002] Bridge damping and vibration reduction technology is one of the most advanced technologies in the field of civil engineering. Foreign bridge powers such as Europe, America, and Japan started research on this technology earlier, with relatively mature theories and rich experience. There is a big gap in the research and application of this technology. However, due to the decrease in bridge construction in foreign countries in recent years, the research atmosphere is not as good as before, and the technical development is also weak. In contrast, in China, the construction of bridges is in the ascendant, and the demand for innovation is increasing day by day, and it is gradually becoming the center of technological development. [0003] Cable-stayed bridges have l...

AI Technical Summary

Problems solved by technology

[0009] For the longitudinal damping and restraint system of the main girder of the above-mentioned cable-stayed bridge, there are technical blanks in terms of vibration and wind resistance, and a complete vibration and wind resistance and seismic damping and restraint system has not yet been established. adverse effects and other problems, the present invention provides a cable-stayed bridge girder oblique damping restraint system

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