先简支后连续梁桥施工线形控制技术研究  

Research on Linear Control Technology for Construction of Simple Supported Continuous Beam Bridge

作　　者：张志高 Zhang Zhigao

机构地区：[1]中铁十八局集团第五工程有限公司,天津300222

出　　处：《辽宁省交通高等专科学校学报》2021年第1期9-13,共5页Journal of Liaoning Provincial College of Communications

摘　　要：本文以某桥梁为研究背景,通过有限元建模的方式对桥梁各个施工阶段的受力以及变形进行了分析,据此得出桥梁无需设置预拱度的理论依据。在此基础上,本文选择了短线法对预制梁段时的线形进行计算,并据此提出误差修正方法,以达到线形控制的目的。This paper takes a bridge as the background,through the finite element modeling of the bridge at each stage of the construction of the force and deformation analysis,based on which the bridge does not need to set the pre-arch theoretical basis.On this basis,the short-line method is selected to calculate the linear shape of the precast beam segment,and the error correction method is proposed to achieve the purpose of linear control.

关 键 词：先简支后连续 线形控制 有限元分析 短线法 

分 类 号：U448.2[建筑科学—桥梁与隧道工程]