唐山曹妃甸工业区1#桥工程抗震设计

Seismic Design of Tangshan Caofeidian Industrial Area No.1 Bridge

该文针对目前抗震规范无法满足大跨度斜拉桥抗震设计的问题,以唐山曹妃甸工业区1#桥工程为背景,阐述工程的抗震设防标准及性能目标,按照基于结构性能和构件能力保护思想的抗震设计方法,通过地震动参数和全桥的抗震性能研究,解决了强震区大跨度斜拉桥抗震设计的技术难题,为今后类似桥梁抗震设计提供参考。

In the light of the problem that the current seismic criterion can not satisfy the seismic design of long span cable-stayed bridges and taking Tangshan Caofeidian Industrial Area No.1 Bridge as the background, the article sets forth the seismic fortification criteria and performance objective of the project. According to the seismic design method based on the structural performance and the component capacity protection think, the study of earthquake motion parameters and the seismic performance of the whole bridge solves the technical difficulty of the seismic design for the long-span cable-stayed bridge in the strong earthquake region, which provides the reference for the seismic design of the similar bridges in the future.