辽宁工程技术大学学报（自然科学版）2017，Vol.36Issue(6)：614-618,5.DOI:10.11956/j.issn.1008-0562.2017.06.010
桥梁基础大体积混凝土施工温控研究
Research on temperature control of mass concrete construction of bridge foundation
摘要
Abstract
To study the issue of the effective measures of temperature control when the thickness of mass concrete layered pouring is thicker,this paper used the method of the simulation analysis to study the temperature and temperature stress characteristic of the cooling tube and three-dimensional cooling net with different thickness of layered pouring.The conclusion of the analysis shows that when the thickness is 2 m,the cooling pipe effect is good,and the tensile stress is within the allowable range;when the thickness is 4 m,it can't satisfy the requirement of temperature control only laid cooling tube,but the three-dimensional cooling net can further reduce temperature region,and the stress are within the range,effectively combining the three-dimensional cooling net with the layered construction contributes to achieve shortening the construction period.This provides a reference for the temperature control for mass concrete constructions.关键词
大体积混凝土/温控/浇筑厚度/仿真分析/空间立体冷却网/温度应力Key words
mass concrete/temperature control/pouring thickness/simulation analysis/three-dimensional cooling net/temperature stress分类
信息技术与安全科学引用本文复制引用
张彬,宋帅,钱由胜,刘妍秀..桥梁基础大体积混凝土施工温控研究[J].辽宁工程技术大学学报（自然科学版）,2017,36(6):614-618,5.基金项目
国家安监总局项目(05-05-079) （05-05-079）
辽宁省教育厅项目(L2011048) （L2011048）
