Seismic Behavior of Composite Coupled Walls: Coupling Beams Including Slab and System

复合连体墙的抗震性能：包括板和系统的连梁

• 批准号: 9714860
• 负责人: Bahram Shahrooz
• 金额: --
• 依托单位: University of Cincinnati Main Campus
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-09-01 至 2004-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9714860&HistoricalAwards=false
• 关键词: Seismic; Behavior; Composite; Coupled; Walls

9714860ShahroozThrough integrated analytical and experimental studies, this research will address (a) effects of significant yielding of wall reinforcement and combined wall flexural and diagonal shear cracks on stiffness and strength of steel/composite coupling beams and beam-wall connection; (b) impacts of coupling beam axial forces on member and connection performance; (c) level of axial force in steel/composite coupling beams versus reinforced concrete coupling beams; (d) slab effects on distribution of internal stresses and overall behavior of coupled wall systems with steel/composite beams, and those with reinforced concrete coupling beams; (e) importance of soil-structure interaction on coupling beam rotation demands; and (f) general modeling of structural walls.This is a collaborative investigation between University of Cincinnati (UC) and The Building Research Institute (BRI) of Japan. In the experience study, four approximately 1/3-scale sub assemblages of a coupling beam, wall pier, and floor slab will be fabricated and tested. Wall gravity axial load will be simulated in all specimens. The test results in conjunction with the analytical results will be used to modify the existing state-of-the-art design techniques for steel/composite coupling beams and their connections to reinforced concrete walls.

9714860 Shahrooz通过综合分析和试验研究，本研究将解决（a）墙体钢筋的显著屈服和组合墙体弯曲和斜向剪切裂缝对钢/组合连梁和梁-墙连接的刚度和强度的影响;（B）连梁轴力对构件和连接性能的影响;（c）钢/组合连梁与钢筋混凝土连梁的轴力水平;（d）板对钢/组合连梁和钢筋混凝土连梁的联肢墙系统的内力分布和整体性能的影响;（e）土与结构相互作用对连梁旋转需求的重要性;以及（f）结构墙的一般建模。这是辛辛那提大学（UC）和日本建筑研究所（BRI）的合作研究。 在经验研究中，将制作并测试四个约1/3比例的连梁、墙墩和楼板子组件。 将在所有样本中模拟壁重力轴向载荷。 结合分析结果的测试结果将被用来修改现有的国家的最先进的设计技术，钢/复合连梁及其连接到钢筋混凝土墙。