Incorporation of Near-Fault Effects in a Performance Based Design Format

将近断层效应纳入基于性能的设计格式

• 批准号: 9812478
• 负责人: Helmut Krawinkler
• 金额: $ 12.65万
• 依托单位: Stanford University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-09-01 至 2001-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9812478&HistoricalAwards=false
• 关键词: Incorporation; Near; Fault; Effects; Performance

9812478 Krawinkler Control of damage is a critical issue that is not addressed adequately in present seismic design procedures, and the ground motions near the ruptured fault segments can be much greater and of different characteristics than the ground motions considered in present design procedures. In particular, near-fault ground motions contain pulse-type characteristics that are not captured by the spectral representations of today's codes. Damage control and other important performance levels are being addressed in performance based engineering approaches that are under development in various organizations. The objective of this research project is to develop knowledge that permits the incorporation of near-fault effects in a performance based seismic design format. The following investigations will be conducted: (a) Synthesize available information on seismic demands imposed by near-fault ground motions and pulse-type input on various types of structural systems, (b) generate additional data on seismic demands to complement the available information as needed for a comprehensive assessment of near-fault effects, (c) draw conclusions on specific issues critical for performance based design, and (d) utilize the acquired knowledge to combine near-fault effects and performance based design. The challenge of the research will be to provide effective guidelines that will permit system concept development and performance evaluation based on a description of the seismic hazard for different return periods and a comprehensive set of performance criteria, with due consideration given to the characteristics of near-fault ground motions. This is an award under the first round (FY'98) competition of the CMS-INT initiative NSF 98-36 "US-Japan Cooperative Research in Urban Earthquake Disaster Mitigation". ***

9812478 Krawinkler损坏控制是一个关键问题，在当前的地震设计程序中没有得到充分解决，并且破裂断层段附近的地面运动可能比当前设计程序中考虑的地面运动大得多，并且具有不同的特征。 特别是，近断层地面运动包含脉冲型的特点，没有捕捉到今天的代码的频谱表示。 损害控制和其他重要的性能水平正在解决基于性能的工程方法，正在开发中的各种组织。 本研究项目的目的是开发知识，允许纳入近断层效应的性能为基础的抗震设计格式。 将进行以下调查： (a)综合关于近断层地面运动和各种类型结构系统上的脉冲型输入所施加的地震需求的可用信息，（B）生成关于地震需求的附加数据，以补充全面评估近断层效应所需的可用信息，（c）得出关于基于性能的设计的关键具体问题的结论，以及（d）利用所获得的知识将联合收割机近故障效应和基于性能的设计相结合。 这项研究的挑战将是提供有效的指导方针，以便根据对不同重现期的地震危险的描述和一套全面的性能标准，并适当考虑到近断层地面运动的特点，制定系统概念和进行性能评价。 这是CMS-INT发起的NSF 98-36“美日城市地震灾害减轻合作研究”第一轮（FY'98）竞赛的一个奖项。 ***