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

本研究将通过分析与实验相结合的研究，研究(a)墙体配筋显著屈服、墙体组合梁弯剪和斜剪裂缝对钢/组合梁和梁墙连接刚度和强度的影响；(b)耦合梁轴向力对构件和连接性能的影响；(c)钢/复合材料耦合梁与钢筋混凝土耦合梁的轴力水平；(d)钢板对钢/组合梁和钢筋混凝土组合梁耦合墙体系内应力分布和整体性能的影响；(e)土-结构相互作用对耦合梁旋转要求的重要性；(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）之间的合作研究。在经验研究中，将制作并测试耦合梁、墙墩和楼板的四个大约1/3比例的子组合。所有试件均模拟墙体自重轴向荷载。测试结果结合分析结果将用于修改现有的钢/复合耦合梁及其与钢筋混凝土墙的连接的最先进的设计技术。

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.