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首页> 外文期刊>Journal of Earthquake Engineering >Seismic Reliability Assessment of Typical Road Bridges in Hungary
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Seismic Reliability Assessment of Typical Road Bridges in Hungary

机译：匈牙利典型路桥的抗震可靠性评估

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摘要

Prior to modern seismic codes, several road bridges were not designed for earthquakes in many moderate seismic regions. The seismic performance of these bridges is questionable. A portfolio of 30 non-seismically designed bridges is compiled for seismic reliability assessment. Fragility analysis is conducted, and the reliability of each structure is determined considering typical moderate seismic areas. The study shows that slab and multi-girder bridges with elastomeric bearings perform worse, whereas girder bridges with conventional bearings and multi-girder bridges with monolithic joints have better behavior. It is also shown that seismic design per Eurocode 8 leads to a reliability index of similar to 2.
机译：在现代地震法规出台之前，在许多中度地震地区，还没有为地震设计一些公路桥梁。这些桥梁的抗震性能令人怀疑。编制了30个非抗震桥梁的组合，用于抗震可靠性评估。进行了脆性分析，并考虑了典型的中等地震区域，确定了每个结构的可靠性。研究表明，带有弹性轴承的平板和多梁桥的性能较差，而带有传统轴承的梁桥和带有整体式节点的多梁桥的性能更好。还表明，按照欧洲规范8进行抗震设计可得出类似于2的可靠性指标。

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