摘要
通过理论分析、算例、现场实测资料 3个方面探讨了连续结合梁采用顶升技术进行应力调整技术的可行性 ;指出了结合梁收缩徐变效应估算应注意的问题 ;推导了考虑钢梁、混凝土板粘结滑移的结合梁收缩徐变长期行为的理论估算公式 ;
Based on the results of theoretic analysis, calculated example and site test, the feasibility of adopting jacking-up technique to continuous composite steel-concrete beam bridge for introducing prestress to concrete slab is discussed, and then the problems on shrinkage and creep effect calculation of composite steel-concrete beam is pointed out. Moreover, the formulae for time-dependent effect calculation of composite beam, involving bond-sliding influence between steel girder and concrete slab are proposed. Finally,the problems on adopting jacking-up technique to continuous composite steel-concrete beam are explored.
出处
《中山大学学报（自然科学版）》
CAS
CSCD
北大核心
2002年第2期32-36,共5页
Acta Scientiarum Naturalium Universitatis Sunyatseni
基金
广州市建设委员会重点资助项目
