某大桥长期挠度的控制技术  

Control Technology for Long-Term Deflection of One Bridge

作　　者：申俊超 

机构地区：[1]濮阳濮范高速公路有限公司,河南濮阳457000

出　　处：《交通标准化》2011年第19期119-122,共4页Communications Standardization

摘　　要：根据施工实践经验,将预应力"零弯矩"设计理论运用到在建的某大桥辅航道桥(268m连续刚构)工程中,在原设计的结构内力计算基础上,对传统的工程控制措施和深化的"零弯矩"设计措施进行比较,最后提出控制长期挠度的建议,以供大桥建设者参考。According to construction practice experience,it uses the design concept of prestressed zero moment in the auxiliary shipping channel bridge of one bridge under construction.Based on the calculation of structural internal force of original design,it compares the traditional engineering control measures with the design measure of zero moment,and puts forward proposes for controlling long-term deflection,which can provide reference for bridge engineers.

关 键 词：辅航道桥 下挠 斜拉索辅助合龙 连续刚构 

分 类 号：U441[建筑科学—桥梁与隧道工程]