tower construction;layer construction method of three-time pouring and three-time tension;spatial finite element method;lower beam;concreting in lifts;supporting system
期刊：
INTERNATIONAL SYMPOSIUM ON LIFE-CYCLE PERFORMANCE OF BRIDGES AND STRUCTURES
年：
2010
页码：
1032-1035
会议名称：
International Symposium mon Life-Cycle Performance of Bridge and Structures(桥梁和结构生命周期性能评估国际研讨会)
会议论文集名称：
International Symposium mon Life-Cycle Performance of Bridge and Structures(桥梁和结构生命周期性能评估国际研讨会)论文集
16 DONGHUANGCHENGGEN NORTH ST, BEIJING 100707, PEOPLES R CHINA
出版者：
SCIENCE PRESS BEIJING
ISBN：
978-7-03-027815-9
机构署名：
本校为第一且通讯机构
摘要：
With the development of the span lengths of cable-stayed bridges, there are more and more difficulties in the construction of tower. A new layer method of three-time pouring and three-time tension construction for the lower beam of long-span cable-stayed bridge tower is presented. The spatial finite element model considering the creep and shrinkage effects is established and applied to some engineering examples. And it is found that the residual stress near the seams due to the increase of the number of layered pouring can be reduced by adopting equitable construction program and rational tens...
