烟囱结构竖向地震作用研究进展

目前在工程结构抗震领域中,关于结构水平地震作用的研究已经形成了比较完善的理论体系和抗震设计方法;然而通过理论研究和对大量震害现象的分析表明,竖向地震作用对结构的作用不容忽视。国内外学者对烟囱结构的竖向地震作用展开了深入的研究,取得了丰硕的成果。介绍了目前国内关于烟囱结构竖向地震作用的研究现状,内容包括烟囱结构竖向地震作用的震害分析、烟囱竖向地震作用计算理论的研究、烟囱竖向地震作用的试验研究。最后讨论了存在的问题,提出了今后值得研究的若干问题。

STATE-OF-THE-ART OF VERTICAL EARTHQUAKE ACTION ON CHIMNEY

The research on horizontal earthquake-resistant theory and design methods has perfected recently.However,the theoretical study and a large number of the phenomena of earthquake disaster show that we could not ignore the vertical earthquake excitation to structures.The research on chimney under vertical earthquake has been the focus of attention in recent years,and many thorough explorations have been done for that.The state of the art of vertical earthquake action on chimney is summarized,which contains the analysis of the damage of vertical vibration,the calculation theory and experimental investigation on chimney under vertical earthquake. Finally,the problems and prospects of the research are discussed,and the aspects for further research are recommended.