摘要
基于1年长期荷载试验,对预应力组合梁的长期变形、预应力筋应变、钢梁应变、抗剪连接件的滑移等时随性能进行较为系统的研究。在此基础上,指出我国《钢结构设计规范》中有关预应力组合梁长期挠度的计算方法偏于不安全,并提出了相应的设计建议。
Based on the oneyear sustained loading test, the timedependent performance like the longterm deformation, strain of prestressing bars, strain of steel beams, and slip of shear connectors of prestressed steelconcrete composite beam is systematically studied. In accordance with the results of the study, it is found that the design methods for the longterm deflection of the prestressed steelconcrete composite beams provided in the 'Steel Structures Design Specification' of China are a little unsafe, and thus the corresponding design suggestions are put forward.
出处
《桥梁建设》
EI
CSCD
北大核心
2003年第2期1-3,15,共4页
Bridge Construction
基金
上海市科技发展基金资助项目(992012044)
