大直径钢管塔风振时程分析及风振控制研究
|
摘要
以大直径钢管为结构主体的钢管塔是一种很有发展潜力的新型塔。大直径钢管是空间薄壁壳体，其结构分析设计与传统的杆系塔架有很大的不同。在静力分析的基础上，结合具体工程研究钢管塔风振时程分析及风振控制，提出了利用悬吊质量摆进行钢管塔风振控制的方法，分析了控制参数对控制效果的影响。数值算例表明，悬吊质量摆能够有效地减小钢管塔风振反应，是一种经济实用的控制装置。
A large-diameter steel tube tower is one of new types of tubular structre.Since a large-diameter steel tube must be treated as a thin-walled shell,its structural analysis and design are quite different from that of the conventional tower Based on static analysis and real projects,the time history analysis and control of wind-induced vibration are studied A new method to control vibration is proposed using a suspended mass pendulum,and its related parameters are investigated Numerical examples indicate that the suspended mass pendulum is an economic and effective equipment to reduce the wind-induced vibration of the large-diameter steel tube tower
A large-diameter steel tube tower is one of new types of tubular structre.Since a large-diameter steel tube must be treated as a thin-walled shell,its structural analysis and design are quite different from that of the conventional tower Based on static analysis and real projects,the time history analysis and control of wind-induced vibration are studied A new method to control vibration is proposed using a suspended mass pendulum,and its related parameters are investigated Numerical examples indicate that the suspended mass pendulum is an economic and effective equipment to reduce the wind-induced vibration of the large-diameter steel tube tower
引文
1王肇民主编．高耸结构设计手册．北京：中国建筑工业出版社，1995．527～5422董军，邓洪洲，马星．大直径钢管塔结构分析及稳定设计研究．见：沈祖炎主编．高层、轻型、高耸钢结构的理论与工程技术进展．上海：同济大学出版社，1997．448～4553王肇民主编．高耸结构振动控制．上海：同济大学出版社，1997．1～324HousnerGW，SoongTT，MasriSF．Secondgenerationofactivestructuralcontrolincivilengineer－ing．MicrocomputersinCivilEngineering，1996，11（5）：289～2965星谷胜．随机振动分析．常保琦译．北京：地震出版社，1977．42～636王前信，卢书辉．悬吊体系的地震力．北京：地震出版社，1981．1～45
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心