跨断层地表破裂带桥梁震害研究及抗震概念设计

发布时间：2018-12-25 09:54

【摘要】：针对跨断层地表断裂带桥梁工程抗震设计及防御对策中存在的问题,整理、分析了国内外历次地震中跨越断层地表断裂带桥梁的震害资料,得出了发震断层类型、桥梁结构形式(上部结构、支座和下部结构)、平面线形等对桥梁结构损坏程度的影响规律,并指出在设计之初未对可能出现的断层地表破裂予以考虑或考虑不充分是地震中桥梁严重损毁的重要原因。在此基础上,提出了包括设防思路、结构形式、抗震措施等方面的跨断层地表破裂带桥梁抗震概念设计。
[Abstract]:In view of the problems existing in the seismic design and defense countermeasures of the bridge engineering across the fault surface fault zone, the seismic damage data of the bridge across the fault surface fault zone in the past earthquakes at home and abroad are analyzed, and the types of the seismogenic fault are obtained. The influence of bridge structure form (superstructure, support and substructure) and plane alignment on the damage degree of bridge structure, It is pointed out that the failure or insufficient consideration of the possible fault surface rupture at the beginning of the design is an important reason for the serious damage of the bridge in the earthquake. On this basis, the seismic conceptual design of cross-fault ground rupture zone bridge is put forward, which includes the idea of fortification, structure form, seismic measures and so on.
【作者单位】：东南大学交通学院;交通运输部公路科学研究院;
【基金】：科技部国际科技合作项目(2009DFA82480) 交通运输部西部交通建设科技项目(2009318223094) 交通运输部公路工程行业标准项目(JTG-C-201012)
【分类号】：U442.55

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