摘要
以东营黄河公路大桥为背景,采用有限元对大型复杂桥梁进行施工前的模拟分析,研究了该桥在模型制作过程中,预应力钢束张拉时纵向和0号块暂态结构的空间力学行为,研究表明:一次性全部张拉时,结构受力最好;先张拉跨中预应力钢束时,结构刚度较好;张拉全桥纵向预应力钢束时,各控制截面箱梁断面关键点应力分布较好。
Taking the Yellow River highway bridge in Dongying as the background,using the finite element made simulation analysis on large complex bridge before construction,researched the space mechanical behavior of longitudinal and block 0 transient structure of pre-stressed steels tension in bridge modeling process,the research showed that： in one-time full tension,the structure had best force,in pre-tensioned span prestressed steel beam,the structure had better stiffness,in full bridge longitudinal pre-stressed steel beam,the section key point stress of each section box girder control points had better distribution.
出处
《山西建筑》
2016年第30期183-185,共3页
Shanxi Architecture
关键词
大跨度
连续梁
预应力
空间效应
large span
continuous beam
pre-stress
space effect
作者简介
梁美（1984-）,男,硕士,讲师,工程师
