桥塔混凝土在施工期变形荷载作用下开裂机理分析  

Analysis of Cracking Mechanism of Bridge Tower Concrete under Deformed Load during Construction

作　　者：陈骑彪[1] 刘孝辉[1] 李琦[1] 

机构地区：[1]重庆交通科研设计院,重庆400067

出　　处：《公路交通技术》2008年第6期75-80,共6页Technology of Highway and Transport

摘　　要：通过对某大跨径斜拉桥混凝土索塔在温度、收缩作用下的数值仿真计算,结合现场实测数据分析,探索桥塔混凝土施工期间在变形荷载作用下的开裂机理,提出类似混凝土结构裂缝控制的构造处理措施和施工措施。Based on numerical emulation computation for concrete cable tower of a large-span cable-stayed bridge tinder effect of temperature and shrinkage in combination with analysis for measured data on site, this paper searches after the cracking mechanism of bridge tower concrete under deformed load during construction and proposes structure treatment and construction measures for control of structural cracks of similar concrete.

关 键 词：桥塔 混凝土 变形荷载 开裂 

分 类 号：U443.38[建筑科学—桥梁与隧道工程]