中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2007, Vol. 26 ›› Issue (6): 38-42.

• • 上一篇    下一篇

预制梁存放过程中裂缝成因分析

宰国军,周志祥   

  1. 重庆交通大学,重庆 400074
  • 收稿日期:2006-09-20 修回日期:2006-11-08 出版日期:2007-12-15 发布日期:2015-01-22
  • 作者简介:宰国军(1982—),男,江苏扬州人,硕士研究生,主要从事桥梁及结构分析.E-mail:zgi82@163.com

Analysis of Cracks Generating in the Course of Laying Aside Pre-Cast Beam

ZAI Guo-jun,ZHOU Zhi-xiang   

  1. Chongqing Jiaotong University,Chongqing 400074,China
  • Received:2006-09-20 Revised:2006-11-08 Online:2007-12-15 Published:2015-01-22

摘要: 针对预制梁存放时开裂的问题,运用力学知识推导公式,结合工程实例计算下降不同温度时产生的拉应力大 小,并运用有限元软件ANSYS分析验证,指出预制梁存放时支承处理不当,温度骤降是导致梁体开裂的原因,并提出 了处理意见.

关键词: 预制梁, 裂缝, 温度, 支承

Abstract: Aiming at the problem that pre-cast beam generated cracks in course of laying aside it,the mechanics knowledge Was utilized to deduce the formula,and the tensile stress under different descending value of temperature Was calculated according to the engineering,and the finite element software ANSYS Was used to verify the formula.The conclusion Was put forward that if the bearings of pre-cast beam were incorrectly installed when it Was laid aside,and the sudden descending of temperature may result in cracks ,then the corresponding avoidance measure was suggested .

Key words: pre-cast beam, crack, temperature, bearing

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