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 upper steel roof and lower reinforced concrete frame are assembled with Y - shaped steel span hybrid structure. The 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.
出处
《地震工程与工程振动》
CSCD
北大核心
2009年第3期22-31,共10页
Earthquake Engineering and Engineering Dynamics
基金
上海市科委重点科技项目(052112011)
十一五国家科技支撑计划课题(2006BAJ13B01)
国家自然科学基金项目(50621062)
关键词
混合结构
振动台试验
缩尺模型
抗震性能
hybrid structure
shaking table test
scaled model
seismic performance
