上海浦东机场T2航站楼结构模型模拟地震振动台试验研究
|
摘要
上海浦东机场T2航站楼为下部钢筋混凝土框架、上部钢屋盖,两者通过Y形钢斜柱联接而成的大跨度空间混合结构,建筑造型新颖,结构形式复杂。为研究它在地震作用下的抗震性能,进行了1:35缩尺的模型结构振动台试验。本文详细介绍了航站楼结构体系、模型材料的选取、动力相似关系的确定以及试验方案的设计,并通过对试验现象和数据结果处理分析,考察了结构的动力特性,以及加速度、位移和应变反应。试验结果表明,组成此混合结构的框架结构、钢斜柱和钢屋盖在地震反应上各具特点,差异较大。该结构体系合理,具有足够的抗侧刚度,能够满足"小震不坏"、"大震不倒"的抗震设防要求。
Pudong International Airport Terminal 2 Building in Shanghai is a novel large span hybrid structure.The upper steel roof and lower reinforced concrete frame are assembled with Y-shaped steel columns.This special architecture form leads to a complex structure.A structural model of an 1∶35 scale was designed and tested on the shaking table to study its dynamic characteristics and evaluate its performance to withstand earthquakes.This paper illustrates the model design in detail and investigates the seismic response by measuring the time history of acceleration,displacement and strain.It is found that the big response differences exist during the whole course of the test among the reinforced concrete frame,steel roof and Y-shaped steel column.The test results demonstrate that the presented structural system is an ideal solution for the building to withstand earthquakes and it can meet the requirements regulated by Chinese design codes.
Pudong International Airport Terminal 2 Building in Shanghai is a novel large span hybrid structure.The upper steel roof and lower reinforced concrete frame are assembled with Y-shaped steel columns.This special architecture form leads to a complex structure.A structural model of an 1∶35 scale was designed and tested on the shaking table to study its dynamic characteristics and evaluate its performance to withstand earthquakes.This paper illustrates the model design in detail and investigates the seismic response by measuring the time history of acceleration,displacement and strain.It is found that the big response differences exist during the whole course of the test among the reinforced concrete frame,steel roof and Y-shaped steel column.The test results demonstrate that the presented structural system is an ideal solution for the building to withstand earthquakes and it can meet the requirements regulated by Chinese design codes.
引文
[1]杨勇,郭子雄,聂建国,等.SRC-RC竖向混合结构过渡层抗震设计方法探讨[J].世界地震工程,2005,21(4):60-65.
[2]汪大绥,周健,刘晴云,等.浦东国际机场T2航站楼钢屋盖设计研究[J].建筑结构,2007,37(5):45-49.
[3]周健,刘晴云,张耀康,等.浦东国际机场T2航站楼主楼钢屋盖弹塑性时程分析[J].建筑结构,2007,37(5):50-55.
[4]DG J 08-9-2003建筑抗震设计规程[S].上海:上海工程标准定额管理站,2003.
[5]GB 50011-2001建筑抗震设计规范[S].中国建筑工业出版社,2001.
[2]汪大绥,周健,刘晴云,等.浦东国际机场T2航站楼钢屋盖设计研究[J].建筑结构,2007,37(5):45-49.
[3]周健,刘晴云,张耀康,等.浦东国际机场T2航站楼主楼钢屋盖弹塑性时程分析[J].建筑结构,2007,37(5):50-55.
[4]DG J 08-9-2003建筑抗震设计规程[S].上海:上海工程标准定额管理站,2003.
[5]GB 50011-2001建筑抗震设计规范[S].中国建筑工业出版社,2001.
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