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| 地震安全性评价中时程的包线与设定地震 | |
| 引用本文： | 沈建文,余湛,石树中.地震安全性评价中时程的包线与设定地震[J].震灾防御技术,2007,2(2):201-206. |
| 作者姓名： | 沈建文 余湛 石树中 |
| 作者单位： | 1. 上海市地震局,上海,200062 2. 同济大学,上海,200092 3. 浙江省地震局,杭州,310013 |
| 基金项目： | 浙江省重点科研社会发展项目 |
| 摘 要： | "设定地震"概念的提出已有一段时间,但鲜见在我国地震安全性评价中应用。同时,概率方法在地震危险性评价中,由于时程包线函数的确定源于震级-距离组合的不确定性而带有较大的任意性。本文建议在考虑潜源概率贡献的基础上,引入设定地震的期望震级和期望距离组合,用以控制包线函数。通过修改危险性分析椭圆模型的软件,可以进行计算并给出了算例。 |
| 关 键 词： | 设定地震 时程包线 地震危险性分析 |
| 收稿时间： | 2007/3/11 0:00:00 |
| 修稿时间： | 2007-03-11 |
Envelope Functions of Time Histories in Seismic Safety Evaluation and Scenario Earthquakes |
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| Shen Jianwen,Yu Zhan and Shi Shuzhong.Envelope Functions of Time Histories in Seismic Safety Evaluation and Scenario Earthquakes[J].Technology for Earthquake Disaster Prevention,2007,2(2):201-206. | |
| Authors: | Shen Jianwen Yu Zhan and Shi Shuzhong |
| Abstract: | It has been a period of time that the concept of scenario earthquake was proposed,but this concept is rarely used in seismic safety evaluation in China since then.Meanwhile,because of the uncertainties of magnitudes-distances pairs,there is large arbitrariness while determining envelope function of time histories in seismic hazard analysis.In this paper,we describe a method to control the envelope functions of the time histories by introducing the most-likely combinations of magnitude and distance of the scenario earthquakes based on probabilistic method,revise the software of the ellipse model for seismic hazard analysis,and give a computation example. |
| Keywords: | Scenario earthquake Envelope functions of time history Seismic hazard analysis |
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