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本文扼要地回顾了钢筋混凝土抗震延性结构确定性设计的基本原理。这是最近主要在新西兰发展起来的。这个设计方法要求能量耗散机构可以按照某一个预先选定的次序来完成。本文也概要地叙述了“承载能力设计法步骤”(capacity design procedures)在梁、柱、剪力墙中的应用。文中同时也强调了定量的构造要求的极端重要性,如:它与塑性铰中的剪力影响的关系,受压混凝上的约束关系和钢筋与混凝土之间握裹力的关系,文中都作了探讨,并用这些具体的抗震措施来表明承受重力荷载和承受地震位移时,其结构表现是有原则性区别的。
This article briefly reviews the basic principles of deterministic design of reinforced concrete anti-seismic ductile structures. This was recently developed mainly in New Zealand. This design method requires that the energy dissipating mechanism be completed in a certain pre-selected order. This article also outlines the application of “capacity design procedures” in beams, columns, and shear walls. The article also emphasizes the extreme importance of quantitative construction requirements, such as its relationship with the influence of shear forces in plastic hinges, the constraint relationship on compression coagulation, and the relationship between the bond strength between steel reinforcement and concrete. A discussion was made and these concrete anti-seismic measures were used to show that when subjected to gravity loads and subjected to seismic displacements, their structural performance is different in principle.