新型钢-索楼梯的结构设计分析
|
摘要
对天津大学第25教学楼的新型钢-索楼梯进行了动力特性、抗震性能的计算分析以及楼梯结构构件和节点的设计。结果表明:该新型钢-索楼梯结构的自振频率呈密集型分布,结构地震反应很小,具有良好的抗震性能;风荷载一般对该新型钢-索楼梯结构结构设计起控制作用;设计的连接节点与计算模型吻合很好,能有效安全地传递内力。
A new type stair with steel-cable structure located in Tianjin University is researched,dynamic characteristics, seismic fortification capability and the design of the stair's members and joints are investigated.The results indicate that the natural vibration frequencies of the stair concentrate in a small range,and its seismic performance is very small,which means it will have a good performance when fall across the earthquakes; always the wind load plays a main effect on the design of the new stair; and the designed joints match with the analysis model very well,which can transform the internal force safely.
A new type stair with steel-cable structure located in Tianjin University is researched,dynamic characteristics, seismic fortification capability and the design of the stair's members and joints are investigated.The results indicate that the natural vibration frequencies of the stair concentrate in a small range,and its seismic performance is very small,which means it will have a good performance when fall across the earthquakes; always the wind load plays a main effect on the design of the new stair; and the designed joints match with the analysis model very well,which can transform the internal force safely.
引文
[1] CLOUGH R W,PENZIEN J.Dynamics of structures [M].New York: McGraw-Hill Inc.1993．
[2] 建筑结构抗震设计规范(GB50011-2001) [S].北京:中国建筑工业出版社,2001．
[3] 王亚勇.结构抗震时程分析法输入地震记录的选择方法及其应用[J].建筑结构,1992(5) :3．
[4] 丰定国.工程结构抗震[M].2002,82．
[5] 王亚勇.关于设计反应谱、时程法和能量方法的探讨[J]. 建筑结构学报,2002(2) :21-28．
[2] 建筑结构抗震设计规范(GB50011-2001) [S].北京:中国建筑工业出版社,2001．
[3] 王亚勇.结构抗震时程分析法输入地震记录的选择方法及其应用[J].建筑结构,1992(5) :3．
[4] 丰定国.工程结构抗震[M].2002,82．
[5] 王亚勇.关于设计反应谱、时程法和能量方法的探讨[J]. 建筑结构学报,2002(2) :21-28．
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