摘要
采用悬臂施工的连续梁桥需经历一个漫长的施工周期,施工过程中混凝土的徐变效应必须加以考虑;同时作为临时荷载的挂篮或吊架,其卸除的方式也会对结构的最终变形产生影响,进而影响桥梁预拱度的设置。从考虑混凝土徐变及临时荷载的移除方式的角度分析了临时荷载对连续梁桥预拱度的影响,为此类桥梁的施工及施工控制提供一定参考。
Cantilever constructed continuous beam bridge comes through a lengthy period in construction. Effects of concrete creeping in the process of construction must be considered. At the same time, the way to unload the hanging basket will influnce th~ final distortion of the structure, and then influence the setting of the precamber. It analyzes the impact caused by temporary load to the precamber by considering the concrete creep and unload manner.
出处
《黑龙江工程学院学报》
CAS
2005年第3期32-34,共3页
Journal of Heilongjiang Institute of Technology
关键词
临时荷载
悬臂施土
徐变
预拱度
temporary load
cantilever construction
creep
precamber
