摘要
将隧道施工控制位移反分析法应用于大跨度PC桥梁悬臂施工线形监控参数计算中,结合桥梁施工前期结构变位的测试结果,从另一个方面实现了桥梁结构分析参数较准确取值的优化途径,由此可确保施工全过程各梁段线形调控参数计算的准确度.通过用本文方法对青海省平(安)—阿(岱)高速公路园艺场PC平弯连续刚构梁桥监控实施,使该桥合龙精度和成桥线形达到了期望的效果.
Displacement back analysis of tunneling construction control is applied to the parameter calculation of construction alignment control in long-span PC cantilever bridge, Combined with testing result of structure displacement at the beginning of construction,an optimized approach of accurate value is achieved in.bridge structural analysis from another aspect. Thus, the parameter calculation accuracy of alignment control with each girder segment is ensured in entire construction. This method is used in the construction monitoring and supervision for Yuanyichang circular curved rigid frame bridge on Ping＇an-Adai highway, to make the closure accuracy and the bridge alignment reach the effect of aspiration.
出处
《兰州交通大学学报》
CAS
2006年第6期49-52,共4页
Journal of Lanzhou Jiaotong University
关键词
桥梁结构
悬臂施工
线形控制
位移反分析
bridge
cantilever construction
construction control
displacement back analysis
