摘要
大连国际会议中心的筒体采用"钢管角柱-钢桁架暗支撑架混凝土组合核心筒"。该结构各核心筒均根据建筑的需求开设了洞口,且整个结构质量、刚度分布不均,筒体受力较为复杂。在核心筒的抗震设计中,如何保证筒体角部钢管柱柱脚与混凝土基础具有良好的共同工作性能,保证结合部位的锚固性能,是其关键技术之一。对这部分钢管柱进行抗拔试验研究,以确保在地震作用下整个筒体以及结构的安全。试验表明,混凝土基础中配置竖向抗拔钢筋和水平分布钢筋均能有效提高抗拔柱的锚固承载力。
The cylinder body of Dalian International Conference Center adopts ＂steel tube-reinforced concrete column frame-concealed mesh steel truss concrete composite core tube＂.The core tubes are set up caves according to the building needs,the distribution of the whole structural mass and stiffness are not uniform,and the stress is more complex.In the seismic design of the core tube,how to protect the good working performance of steel tube-reinforced concrete column and concrete foundation,and guarantee the anchorage performance,is one of the key technologies.The experiment of the uplift column was carried out to ensure the safety of the cylinder body and the structure under earthquake.The experiment results show that the uplift and horizontal steel in the concrete foundation can effectively improve the anchoring capacity of uplift column.
出处
《建筑结构》
CSCD
北大核心
2012年第2期66-70,共5页
Building Structure
关键词
核心筒
钢管受拉角柱
锚固性能
拉拔试验
core tube
steel tube tensile prism
anchorage performance
uplift column test
