摘要
讨论大跨度预应力混凝土梁桥监测监控过程中 ,有限元计算、线形监测、应变测量等方面的技术问题。描述施工预拱度控制的神经网络后期预测技术和应变测试原理及方法 ,分析测试应力的诸多影响因素 ,对桥梁的线形、合拢段相对高差的控制 ,确定实际结构的真实应力 ,桥梁的施工及安全使用等具有一定的指导意义。
This paper discusses some techniques of calculation of finite element, alignment survey and strain-gauging etc about supervisory measurement and construction control for long span Prestressed Concrete Beam bridge, describes late forecast theory of neural network for construction camber control, and principle and methods of strain?gauging, analysis some infection factors of test stress It can be a guide for bridge alignment,the control of relative elevation difference of join the two section of bridge, the determination of true stress of actual structure, its construction and safety transportation etc
出处
《公路交通科技》
CAS
CSCD
北大核心
2002年第4期52-56,共5页
Journal of Highway and Transportation Research and Development
基金
国家自然科学基金资助项目 (1 9772 0 38)
湖北省交通科技资助项目 (鄂交技 [2 0 0 0 ] 32 0号 )
关键词
大跨度预应力混凝土桥梁
公路桥梁
监测监控技术
Highway bridge
Prestressed concrete
Supervisory measurement and control technique
