高层建筑上的穹顶结构及其自振特性的理论和试验研究  

Theory and test research of dome structure and its vibration characteristics in a tall building

作　　者：高维成[1] 史纪鑫[1] 邹经湘[1] 沈世钊[1] 

机构地区：[1]哈尔滨工业大学航天工程与力学系,哈尔滨150001

出　　处：《地震工程与工程振动》2003年第5期81-87,共7页Earthquake Engineering and Engineering Dynamics

基　　金：国家自然科学基金(19972017)资助

摘　　要：本文就某高层建筑上的穹顶结构的设计介绍了一种新型抛物线方钢管穹顶结构。利用ANSYS软件对其进行了动力学分析,在现场进行了模态试验的实测,得到了低阶频率和振型,与有限元结果吻合较好。通过对计算结果和实验结果的分析发现这种结构受力合理、节省材料,是一种值得深入研究的体系,同时,本文所用的有限元计算与实验分析方法对类似工程结构的分析具有一定参考价值。A new design of parabolic dome structure of square steel tube of building is introduced here. The dynamics analysis of this dome structure is proceeded by the finite element software ANSYS. Low frequency and mode are acquired by modal test. The results from modal test fit well with the one from finite element method. By analyzing the result from finite element and from modal test, it is found that this dome structure has advantage of forcing and material saving and is valuable to be researched deeply. The analysis indicates that the method and test result in this paper have referential value for the application and research of dome structure.

关 键 词：高层建筑 穹顶结构 有限元 模态实验 ANSYS 

分 类 号：TU973[建筑科学—结构工程]