摘要
结合已有试验数据,对超长混凝土梁不同间歇时间下考虑先后浇块共同作用的温度应力及其分布进行计算分析。研究结果表明,高度1 200mm及以下超长混凝土梁共同作用温度应力随间歇时间的增加而减少,间歇2d即可显著降低最大温度应力。框架梁在环境温度阶段的共同作用效果较强,因此应结合工况和季节条件计算分析其在环境温度阶段的共同作用温度应力。
Combined with the existing test data, the temperature stress and its distribution of the super-long concrete beam under different intermittent time are calculated and analyzed considering the interaction of successively poured blocks. The research results show that the temperature stress of super-long concrete beams with height of 1 200mm and below decreases with the increase of the interval time, and the maximum temperature stress can be significantly reduced after the interval of 2 days. The interaction effect of frame beam in the ambient temperature stage is strong, so the interaction temperature stress in the ambient temperature stage should be calculated and analyzed in combination with the working conditions and seasonal conditions.
作者
叶林
张怡琦
李翠翠
许卫晓
YE Lin;ZHANG Yiqi;LI Cuicui;XU Weixiao(Qingjian Group Co.,Ltd.,Qingdao,Shandong 266071,China;Shandong Jianzhu University,Jinan,Shandong 250101,China;Qingdao University of Technology,Qingdao,Shandong 266033,China)
出处
《施工技术（中英文）》
CAS
2023年第3期113-117,共5页
Construction Technology
基金
青岛市企业技术创新重点项目(LX201903.0291)。
关键词
混凝土
梁
温度应力
间歇时间
监测
concrete
beams
temperature stress
intermittent time
monitor
