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开裂闸墩的温度场和应力场仿真分析
引用本文:陈强,刘维新,李惠安,张春生. 开裂闸墩的温度场和应力场仿真分析[J]. 水电站设计, 2007, 23(1): 5-9
作者姓名:陈强  刘维新  李惠安  张春生
作者单位:中国水电顾问集团成都勘测设计研究院,工程分院,四川,成都,610072;黄河勘测规划设计有限公司,河南,郑州,450002
摘    要:按照闸墩实际材料与浇筑过程,利用有限元仿真程序,计算了闸墩在施工期及运行期的温度场和应力场,得到了其开裂位置、开裂时间和开裂状态;与闸墩裂缝实际调查资料的对比说明,闸墩内部的过高温度是导致闸墩开裂的根本原因;通过虚拟浇筑计划下的仿真分析表明,选择合理的混凝土浇筑时间与方式,可以避免闸墩开裂。

关 键 词:闸墩  裂缝  仿真分析  温度应力  温度场  应力场  有限元法
文章编号:1003-9805(2007)01-0005-05
修稿时间:2005-09-14

Imitative Analysis of Temperature Field and Stress Field in a Cracked Gate Pier
CHEN Qiang,LIU Wei-xin,LI Hui-an,ZHANG Chun-sheng. Imitative Analysis of Temperature Field and Stress Field in a Cracked Gate Pier[J]. Design of Hydroelectric Power Station, 2007, 23(1): 5-9
Authors:CHEN Qiang  LIU Wei-xin  LI Hui-an  ZHANG Chun-sheng
Affiliation:1. Chengdu Investigation and Design Institute, CHECC, Chengdu, Sichuan, 610072, China; 2. Huanghe Planning and Prospecting and Designing Company, Limited, ZHengzhou, Henan,450002, China
Abstract:Based on the actual concrete materials and placement process,finite element imitative program is used to compute the temperature field and stress field of the gate pier during its construction and operation periods and the crack positions,crack time and crack shape of the pier are obtained.Compared with the actual investigation of the pier cracks,it is indicated that extra-high temperature within the pier causes the cracking.The imitative analysis demonstrates that cracking of the pier can be prevanted through selecting reasonable placement period and form of the gate pier concrete.
Keywords:pier  crack  imitative analysis  temperature field  temperature stress  stress field  finite element method
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