节点文献
温度效应下超长混凝土结构裂缝控制
CRACK CONTROL OF SUPER-LONG CONCRETE STRUCTURE UNDER TEMPERATURE EFFECT
【Author】 CHEN Shangzhi;YAO Zhangting;JIANG Ziyun;LI Tong;ZHAO Xu;China Academy of Building Research;China Building Technique Group Co.,Ltd.;Beijing Jiaotong University;
【机构】 中国建筑科学研究院有限公司; 中国建筑技术集团有限公司; 北京交通大学;
【摘要】 温度应力是影响超长混凝土结构裂缝开展的重要因素。通过对混凝土在温度变化、自身收缩及徐变作用下的温度应力分析,结合赣州西站站前广场项目,辅以有限元分析,提出以缓黏结预应力为主的裂缝控制措施,以期为同类工程提供参考。
【Abstract】 Temperature stress is an important factor affecting the crack development of super-long concrete structures.Based on the temperature stress analysis of concrete under the action of temperature,shrinkage and creep,combined with the actual situation of the front square of Ganzhou West Railway Station Project,and supplemented by finite element analysis,the crack control measures based on the Retard-bonded prestressed as the main part are put forward in order to provide reference for similar projects.
【Key words】 super-long concrete structure; temperature stress; stress reduction coefficient; equivalent temperature variation; retard-bonded prestressed;
- 【会议录名称】 2020年工业建筑学术交流会论文集(下册)
- 【会议名称】2020年工业建筑学术交流会
- 【会议时间】2020-11-21
- 【会议地点】中国北京
- 【分类号】TU755.7
- 【主办单位】中冶建筑研究总院有限公司