Seismic Behavior of Composite Moment Resisting Frame Systems

复合材料抗弯框架系统的抗震性能

• 批准号: 9632442
• 负责人: Joseph Bracci
• 金额: $ 15万
• 依托单位: Texas A&M Engineering Experiment Station
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-09-01 至 1999-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9632442&HistoricalAwards=false
• 关键词: Seismic; Behavior; Composite; Moment; Resisting

This research project studies the applicability of composite moment resisting frame systems made of composite Steel Reinforced Concrete (SRC) columns and steel beams for zones of moderate-to-high seismic risk. The seismic design philosophy for composite moment resisting frame systems is based on developing a desirable beam-sidesway mechanism, where ductile steel beam flexural hinging develops throughout the building and hinging develops at the first story column-foundation interfaces. The research tasks include: (a) experimental subassemblage testing to evaluate various reinforcing details for composite SRC columns and beam-column joint regions that provide efficient energy dissipation capacity and deformation capability during seismic loading scenarios. The response behavior of the subassemblages will be investigated for continuous steel beams through the joint with and without floor slab interaction by headed shear studs (b) experimental subassemblage testing to evaluate various reinforcing details to ensure sufficient strength and deformation capability at the critical first story SRC column-concrete foundation interface, and (c) analytical studies using the well-established nonlinear analysis program IDARC to model the response behavior using data from previous subassemblage testing and this research study. Parametric studies will be performed to identify important hysteretic properties in the composite subassemblages and expanded to evaluate the response behavior of complete composite moment resisting frame systems during earthquake excitations. The applicability of the results to develop design guidelines and reinforcing detail requirements for composite moment resisting frame systems during earthquake excitations. The applicability of the results to develop design guidelines and reinforcing detail requirements for composite moment resisting frame structural systems made of composite SRC columns and steel beams for zones of moderate-to-high seismic risk will be evaluated.

本研究旨在探讨由型钢混凝土组合柱与钢梁组成的组合抗弯框架体系在中高地震风险区的适用性。 复合抗弯框架系统的抗震设计原理是基于开发理想的梁-侧移机制，其中延性钢梁弯曲铰接在整个建筑物中发展，铰接在第一层柱-基础界面处发展。 研究任务包括：（a）进行试验性组合测试，以评估组合SRC柱和梁柱接合区的各种加固细节，从而在地震荷载情况下提供有效的能量耗散能力和变形能力。 将通过有头剪力钉（B）试验性子组件测试，研究连续钢梁通过有和无楼板相互作用的接头的子组件响应行为，以评估各种加固细节，确保关键的第一层SRC柱-混凝土基础界面处有足够的强度和变形能力。以及（c）使用成熟的非线性分析程序IDARC进行分析研究，以使用以前的子组件测试和本研究的数据模拟响应行为。 将进行参数研究，以确定重要的滞回特性的复合子组合和扩展，以评估完整的复合抗弯框架系统在地震激励期间的响应行为。 结果的适用性，以制定设计准则和加强详细要求的组合抗弯框架系统在地震激励。 将评估结果的适用性，以制定设计指南和加固的详细要求，复合抗弯框架结构系统的组合SRC柱和钢梁的区域中，高地震风险。