浅议钢筋混凝土框架结构抗震延性设计要求

Ductility Seismic Design for Reinforced Concrete Frame Structure

在我国现在的多高层建筑中,钢筋混凝土框架结构是最常用的结构形式。结构抗震的本质就是延性,提高延性可以增加结构抗震潜力,增强结构抗倒塌能力。为了利用结构的弹塑性变形能力耗散地震能量,减轻地震作用下结构的反应,应将钢筋混凝土框架结构设计成延性框架结构。文章主要阐述了钢筋混凝土框架结构的抗震延性设计要求。

Reinforced concrete frame structure is one of the most commonly used structural forms adopted in high-rise buildings in our country. The essence of seismic design lies in the ductility, that is to say, the improvement of ductility will increase the structure＇s capacity in earthquake protection and cellapse resistance. In order to dissipate earthquake energy and to reduce the reaction of structure under earthquake with the structure＇s elasto-plastic deformation capacity, ductility seismic design is proposed for the reinforced concrete frame structure. The article will elaborate on the above-mentioned problems.