建筑物结构抗爆设计——单自由体系的弹塑性动力时程分析

Anti-Explosive Design of Building Structure Elastic-Plastic Dynamic Time-History Analysis of Single Degree of Freedom System

对于石化装置区内具有抗爆要求的典型建筑物,总结讨论常见爆炸类型下的结构抗爆设计采用单自由体系的弹塑性动力时程分析方法的设计步骤及相关要点,重点阐述爆炸荷载的特征计算,结构简化为弹塑性动力平衡的单自由体系和可靠荷载传力体系,运用时程数值积分方法解答结构的动力反应。

For the typical buildings with anti-explosion requirements in the petrochemical plant area,this paper summarizes and discusses the design steps and related key points of the elastic-plastic dynamic time-history analysis method of the single degree of freedom system used for antiexplosion design of structure under the common explosion types,and focuses on the explosive load feature calculation.The structure is simplified as a single degree of freedom system of elastic-plastic dynamic balance and a reliable load force system.The dynamic response of the structure is solved by time-history numerical integration method.