| 软土地基深开挖对场地设计地震动的影响 |
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| 引用本文： | 杨伟林,陈国兴,严新育,高志兵.软土地基深开挖对场地设计地震动的影响[J].地震工程与工程振动,2000,20(3):93-99. |
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| 作者姓名： | 杨伟林 陈国兴 严新育 高志兵 |
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| 作者单位： | 1. 江苏省地震工程研究院，南京 210014
2. 南京建筑工程学院，南京 210009 |
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| 基金项目： | 江苏省自然科学基金!（BK99125），江苏省社会发展基金!（BS97092） |
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| 摘 要： | 本文根据南京河西地区所处的地震地质环境、地震活动环境及基岩地震动衰减规律，在场址区地震危险性分析基础上确定该地区的基岩地震动参数，并选取河西地区某个典型工程场地，根据场地上的静、动力性能参数的测试结果，进行场地上层地震反应分析，研究软土地基条件下地基深开挖场地的地震动效应及其对场地设计地震动参数的影响．文中给出了设计基准期为５０年及１００年时对应不同抗震设防水准的设计地震动参数，该结果对河西地区其它高层建筑的抗震设计也有一定的参考价值．
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| 关 键 词： | 软土地基 深开挖 地震动效应 设计地震动参数 |
| 文章编号： | 1000-1301(2000)03-0093-07 |
| 修稿时间： | 2000年3月13日 |
Study of influence of deep level excavation on design ground motion parameters in a weak foundation site |
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| YANG Wei-lin,CHEN Guo-xing,YANG Xin-yu,GAO Zhi-bing.Study of influence of deep level excavation on design ground motion parameters in a weak foundation site[J].Earthquake Engineering and Engineering Vibration,2000,20(3):93-99. |
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| Authors: | YANG Wei-lin CHEN Guo-xing YANG Xin-yu GAO Zhi-bing |
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| Abstract: | In this paper, by considering the seismological condition, seismicity and ground motion attenuation relations of bedrock in Naming and its neighbouring area, probabilistic method of seismic hazard analysis is used to determine the peak ground motion accelerations and the acceleration spectrum of different exceedance probabilities of bedrock in the area. According to the results and soil layer dynamic parameters of a typical site for the construction of a high-rise building, the site effect and the influence of deep level excavation on de. sign ground motion parameters are studied. The parameters for different exceedance probabilities 63, 10 and 3 percent in 50 and 100 years of the site are also given. These results are very useful to the aseismic design of other high-rise buildings, the sites of which are similar to the site discussed in this paper. |
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| Keywords: | weak foundation site deep level excavation site effect design ground motion parameters |
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