桂江大桥墩身裂缝原因分析及处治措施  

Cause Analysis and Treatment for the Pier Cracks in Guijiang Bridge

作　　者：武光德[1] 郭新玲 

机构地区：[1]中冶建筑研究总院有限公司,北京100088 [2]新疆道路桥梁工程总公司第二工程处,昌吉831100

出　　处：《交通科技》2009年第2期37-39,共3页Transportation Science & Technology

摘　　要：桂江大桥在施工过程中出现墩身节段贯通裂缝,分析发现引起墩身开裂的原因主要是混凝土在凝固过程中产生了大量的水化热,使混凝土温度升高。由于该桥墩位于江中,晚上温度较低,未作降温或保温措施,导致混凝土内外温差较大从而引起开裂。在以后的施工过程中采取了给混凝土保温的措施,使得这一现象消失。The pier cracks of Guijiang Bridge occurred during the construction. We find that the high hydration heat caused high internal temperature and there were no cool or insulation facilities, so the internal temperature was higher than outside during night, which caused the cracks. Then the insulation facilities were applied and there was no more cracks occurred.

关 键 词：大桥墩身 施工裂缝 原因分析 处治措施 

分 类 号：U416.1[交通运输工程—道路与铁道工程] TU746.3[建筑科学—建筑技术科学]