复杂高层的整体稳定性分析
|
摘要
《高层建筑混凝土结构技术规程JGJ 3—2002》的稳定性规定与结构的重力荷载和重力的二阶效应有关,该规定建立在弹性分析的基础上,用构件承载力验算中的计算长度系数来保证结构的安全。该规定有一定的适用范围,未必能保证复杂的高层结构的安全性及其计算上的准确性。文中结合腾讯大厦复杂高层设计实例,对整个结构进行线性和非线性整体稳定性分析,提出复杂高层应进行考虑二阶效应的非线性整体稳定分析,分析结果可作为规程的比较和补充,以确定结构的安全与可靠。
Based on the elastic analysis of the gravity case and its second-order effects,the effective length factor in capacity design was employed to guarantee the safety of tall buildings in the stability regulation of The Technical Specification for Concrete Structures of Tall Buildings(JGJ 3—2002).The limitation of the stability regulation limits its application for complex tall buildings and the accuracy in calculation.In this paper,linear and nonlinear analysis of whole building was carried out for the Tencent Building as an example to show the limitation.A suggestion,that nonlinear stability analysis with the second-order effects should be conducted,is put forward to be a comparison and supplement of the specification for the safety and reliability of complex tall building.
Based on the elastic analysis of the gravity case and its second-order effects,the effective length factor in capacity design was employed to guarantee the safety of tall buildings in the stability regulation of The Technical Specification for Concrete Structures of Tall Buildings(JGJ 3—2002).The limitation of the stability regulation limits its application for complex tall buildings and the accuracy in calculation.In this paper,linear and nonlinear analysis of whole building was carried out for the Tencent Building as an example to show the limitation.A suggestion,that nonlinear stability analysis with the second-order effects should be conducted,is put forward to be a comparison and supplement of the specification for the safety and reliability of complex tall building.
引文
[1]中华人民共和国建设部.JGJ 3—2002高层建筑混凝土结构技术规程[S].北京:中国建筑工业出版社.
[2]中华人民共和国建设部.JGJ 138—2001型钢混凝土组合结构技术规程[S].北京:中国建筑工业出版社.
[3]中华人民共和国建设部.GB 50010—2002混凝土结构设计规范[S].北京:中国建筑工业出版社,2001.
[4]徐培福,傅学怡,王翠坤,等.复杂高层建筑结构设计[M].北京:中国建筑工业出版社,2005.
[5]童申家,童岳生.水平地震力作用下框架结构二阶效应影响分析[J].工业建筑,2000(8):17-21.
[6]朱杰江,吕西林,容柏生.高层混凝土结构重力二阶效应的影响分析[J].建筑结构学报,2003(6):38-44.
[7]虞终军,陆秀丽.云南师范大学体育馆屋盖结构设计[J].结构工程师,2007(4):24-29.
[8]罗永峰,徐春丽,陈春晖.青岛大剧院钢屋盖结构的稳定性和抗震性能分析[J].结构工程师,2007(4):28-33.
[9]黄志华,吕西林.上海市超限高层建筑工程的若干问题研究[J].结构工程师,2007(5):5-8.
[2]中华人民共和国建设部.JGJ 138—2001型钢混凝土组合结构技术规程[S].北京:中国建筑工业出版社.
[3]中华人民共和国建设部.GB 50010—2002混凝土结构设计规范[S].北京:中国建筑工业出版社,2001.
[4]徐培福,傅学怡,王翠坤,等.复杂高层建筑结构设计[M].北京:中国建筑工业出版社,2005.
[5]童申家,童岳生.水平地震力作用下框架结构二阶效应影响分析[J].工业建筑,2000(8):17-21.
[6]朱杰江,吕西林,容柏生.高层混凝土结构重力二阶效应的影响分析[J].建筑结构学报,2003(6):38-44.
[7]虞终军,陆秀丽.云南师范大学体育馆屋盖结构设计[J].结构工程师,2007(4):24-29.
[8]罗永峰,徐春丽,陈春晖.青岛大剧院钢屋盖结构的稳定性和抗震性能分析[J].结构工程师,2007(4):28-33.
[9]黄志华,吕西林.上海市超限高层建筑工程的若干问题研究[J].结构工程师,2007(5):5-8.
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