Hysteresis Rules and Design Parameters Assessment of RC Low-Rise Shear Walls and Buildings with Openings

这是密苏里大学(UMR)和国立成功大学(NCKU)在台湾的合作研究项目，研究钢筋混凝土低剪力墙和带洞口建筑体系的抗震性能和设计。NCKU将进行实验，UMR将进行分析研究。其目的是：1)具有弯曲、剪切、轴向和粘结滑移耦合变形的墙体荷载-挠度的数学公式；2)评估墙体和结构体系在裂缝后的刚度降低；3)基于耦合行为的弯曲、剪切和轴向弯曲的滞后模型的发展，4)不同变形阶段的阻尼系数的估计，5)折减系数、延性和损伤指数设计参数的统计研究；6)分析结果与试验结果的相关性。将为工程实践提出修订/改进建筑规范的建议。

This is a cooperative research project between the University of Missouri (UMR) and the National Cheng-Kung University (NCKU) in Taiwan, to study the seismic behavior and design of reinforced concrete low-rise shear walls and building systems with openings. NCKU will perform experimental and UMR will conduct analytical studies. The objectives are: 1) mathematical formulation of load- deflection of walls with coupling deformations of bending, shear, axial,and bond slip, 2) evaluation of stiffness reduction of walls and structural systems after cracks, 3) development of hysteresis models for bendings, shear and axial, based on coupling behavior, 4) evaluation of damping coefficients at various deformation stages, 5) statistical studies of design parameters of reduction factor, ductility and damage index, 6) correlation of the analytical and experimental results. Recommendations for building code revisions/improvements will be made for engineering practice.