Performance Assessment and Performance-Based Design Metholodogy for Composite Construction with Application to Concrete-Filled Steel Tube Structural Systems

复合结构性能评估和基于性能的设计方法在钢管混凝土结构系统中的应用

• 批准号: 0084848
• 负责人: Jerome Hajjar
• 金额: $ 20.01万
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-09-15 至 2006-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0084848&HistoricalAwards=false
• 关键词: Performance; Assessment; Based; Design; Metholodogy

In recent years, performance-based seismic design methodologies have been developed with increasing success for steel, concrete, masonry, and timber structures. However, there are few performance-based design guidelines in the U.S. for composite steel/concrete structures. This proposal outlines research on establishing a methodology for performance-based design of composite structures. To focus the work, the research will apply specifically to frames incorporating concrete-filled tube (CFT) beam-columns. In performance-based design, critical force and deformation design parameters are used to quantify building performance for an anticipated seismic hazard level. The primary objectives of this research are: 1) assess seismic demand in composite CFT frames through a set of parametric frame analyses; 2) consolidate worldwide test results in CFT beam-columns, connections, and frames, and use these results to assess capacity of key components of CFT frames; 3) use the quantified assessments of demand and capacity for all design parameters to formulate a reliability-based performance-based design methodology for composite structures, specifically CFT frames. These frame analyses and the performance-based design methodology together will yield valuable information required for understanding the seismic demands of composite CFT frames, for providing a first step towards comprehensively improving composite CFT design specifications, and for accelerating the trend to use CFTs in common frame structures.

近年来，基于绩效的地震设计方法是开发了钢，混凝土，砌体和木材结构的越来越多的成功。但是，在美国，对于复合钢/混凝土结构而言，基于性能的设计指南很少。 该建议概述了建立基于绩效的复合结构设计方法的研究。 为了集中工作，该研究将专门用于结合充满混凝土管（CFT）梁柱的框架。 在基于性能的设计中，使用临界力和变形设计参数用于量化预期的地震危险水平的建筑性能。这项研究的主要目标是：1）通过一组参数框架分析评估复合CFT框架中的地震需求； 2）巩固全球测试结果CFT梁柱，连接和框架，并使用这些结果来评估CFT帧的关键组件的容量； 3）使用所有设计参数的需求和能力的量化评估，以制定基于可靠性的基于可靠性的绩效设计方法，特别是CFT框架。 这些框架分析和基于绩效的设计方法共同提供了理解复合CFT框架的地震需求所需的有价值的信息，以便为全面改进复合CFT设计规范提供了第一步，并加速了在常见帧结构中使用CFT的趋势。