在沈阳市中心选取一个场址进行地震危险性分析，分别计算0s、1．0s和6．0s周期下沈阳附近各潜在震源区对场址地震危险性的贡献量。计算结果说明在短周期时对场址贡献最大的是沈阳潜在震源区，长周期时对场址贡献最大的是海城潜在震源区。研究不同周期时贡献量最大的潜在震源区，符合工程实际情况，使最终确定的地震动参数更为合理可靠。%According to seismic risk analyses of a project site in Shenyang downtown, we calculate the contributions of potential seismic zones in the area around Shenyang at 0s、 1.0s and 6.0s periods. The results show that the most dominant potential seismic source zone is Shenyang potential seismic source for short period. But for long period, the most dominant potential seismic source zone is Haicheng potential seismic source. According to actual situation, the most dominant potential seismic source zone to seismic hazard for different periods has been studied. And the final ground motion parameter is much more rational.
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