ABSTRACT

Incremental dynamic analyses are performed on 48 infilled reinforced concrete buildings different for infill typology, number of storeys and design peak ground acceleration (PGA). A modelling strategy accounting for infills’ interacting in-plane (IP) and out-of-plane (OOP) responses is implemented. The seismic displacement demand on buildings may be highly underestimated if the IP/OOP interaction is neglected. The PGA at the first OOP collapse is evaluated. Two-leaf infills may be not safe with respect to the OOP collapse. The OOP behaviour factor (q) of infills accounting for the IP/OOP interaction effects is determined. It is suggested assuming q equal to the unit.

摘要

对 48 座不同的填充类型、层数和设计峰值地面加速度 (PGA) 的钢筋混凝土建筑进行增量动态分析。实施了考虑填充物的交互平面内 (IP) 和平面外 (OOP) 响应的建模策略。如果忽略 IP/OOP 相互作用，可能会严重低估建筑物的地震位移需求。评估第一次 OOP 崩溃时的 PGA。就 OOP 坍塌而言，两叶填充物可能不安全。确定了考虑 IP/OOP 交互效应的填充物的 OOP 行为因子 (q)。建议假设 q 等于单位。