Combined shock absorption system of high-speed railway bridge and design method of combined shock absorption system

A shock absorbing system, high-speed railway technology, applied in bridge construction, bridges, bridge parts, etc., can solve the relative displacement of the pier beam without the introduction of the cable limiter, the lack of perfect design method for seismic design, and the difficulty of effectively controlling the relative displacement of the pier beam Displacement and other issues, to achieve the effect of easy control, ensuring earthquake resistance, and reducing earthquake force
CN104153288AInactive Publication Date: 2014-11-19DALIAN MARITIME UNIVERSITY
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
DALIAN MARITIME UNIVERSITY
Publication Date
2014-11-19
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a combined shock absorption system of a high-speed railway bridge and a design method of the combined shock absorption system. The combined shock absorption system is used for reducing and controlling damage to and destruction of the high-speed railway bridge in a strong earthquake. Firstly, a design scheme of a combined shock absorption and limiting system with earthquake-proof bars and cable limiters used is provided on the basis of a function separate support design concept, earthquake response of the bridge is reduced through yield energy consumption of the earthquake-proof bars, and the cable limiters are used for controlling oversize deformation of the earthquake-proof bars and preventing damage caused by bridge fall; secondly, in the framework of performance-based seismic design, design methods of the earthquake-proof bars and the cable limiters are provided under the conditions of frequent earthquakes, design earthquakes and rare occurrence earthquakes respectively; accordingly, the earthquake response of the high-speed railway bridge is reduced, the earthquake-proof property of the structure is improved, and the combined shock absorption system of the high-speed railway bridge and the design method of the combined shock absorption system are particularly suitable for bridge structures suffering from near-fault pulse-like ground motions.
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Description

technical field

[0001] The invention belongs to the technical field of bridge engineering, and relates to a combined damping system and its anti-seismic design method, more specifically, to a high-speed railway bridge combined damping system and its anti-seismic design method using anti-vibration rods and cable stoppers. design method. Background technique

[0002] The operating mileage and construction scale of my country's high-speed railways rank among the top in the world, and are gradually extending to western provinces. The terrain in western my country is mostly mountainous, with strong neotectonic activity and extensive development of faults (fault zones). Large active faults can stretch for hundreds or even thousands of kilometers, with high seismic hazard. In the construction of high-speed railways, bridges account for a considerable proportion. In the west, it is inevitable that they are adjacent to or cross active faults. At the same time, there may be unexplore...

Claims

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