【作者】 孙梦涵； 孙柏涛； 范峰； 支旭东；

【Author】 SUN Menghan;SUN Baitao;FAN Feng;ZHI Xudong;Harbin Engineering University;Institute of Engineering Mechanics,China Earthquake Administration;Harbin Institute of Technology;

【机构】 哈尔滨工程大学； 中国地震局工程力学研究所； 哈尔滨工业大学；

【摘要】 《空间网格结构技术规程》(JGJ7)中规定,对网架结构设计时在8度、9度地震作用下的地震动效应可采用等效竖向自重作用的拟静力方法,并给出了竖向地震作用系数。以该方法为基本思想,本文采用建立的考虑支承结构影响的三维空间简化模型,选取分别代表Ⅰ、Ⅱ、Ⅲ、Ⅳ场地类型的地震波,按照8度常遇地震和9度常遇地震加速度幅值对其进行调幅,研究获得了网架结构在8度、9度地震作用下地震作用系数的合理取值。更多还原

【Abstract】 According to the technical specification for spatial space truss(JGJ7), the quasi-static method can be adopted to designing the vertical seismic effect of regular space truss in 8-degree and 9-degree zone and provide seismic coefficient. In this paper, the basic thought of this method is establishing the simplified three-dimensional model which can consider the influence of the lower structure, and selecting Ⅰ,Ⅱ,Ⅲ,Ⅳ site types of seismic waves, adjusting their peak ground motion acceleration, to get the reasonable seismic coefficients of space truss in 8-degree, 9-degree earthquake zones.更多还原