桥梁结构抗震设计与设防措施研究

Study on Seismic Design and Fortification Measures of Bridge Structures

结合某公路桥梁项目,简要分析了桥梁结构中桥台、桥墩、梁部、地震位移等常见震害的表现形式,提出了延性抗震设计、位移抗震设计、静力抗震设计等桥梁结构抗震设计方法,以及桥梁结构设计中通过基础抗震设计、优化桥梁基座和下部结构设计的的设防措施,借此提升桥梁结构的整体强度,使其承载能力符合桥梁抗震性能要求。

Combined with a highway bridge project, this paper briefly analyzes the expression forms of common earthquake damage in bridge structure, such as abutment, pier, beam and seismic displacement, and puts forward the seismic design methods of bridge structure,such as ductility seismic design, displacement seismic design and static seismic design, as well as the fortification measures to optimize the design of bridge base and substructure in the design of bridge structure. Thus, the overall strength of bridge structure can be improved and its bearing capacity can meet the seismic performance requirements of bridge.