复合梁的热荷载影响及其应变响应研究  

STUDY ON THE INFLUENCE OF THERMAL LOAD ON COMPOSITE BEAM AND ITS STRAIN RESPONSE

作　　者：安宇蒙 AN Yu-meng(China Construction Fangyuan East China Urban Development and Construction Co.,Ltd.,215101,Suzhou,Jiangsu,China)

机构地区：[1]中建方圆华东城市开发建设有限公司,江苏苏州215101

出　　处：《建筑技术》2024年第2期227-230,共4页Architecture Technology

摘　　要：为研究复合粱的热荷载影响及其应变响应,在露天场地上浇筑了一根特殊结构的混凝土-钢组合梁试验梁,使用温度和应变传感器观察其长期热响应,并分析了复合梁在开场热荷载作用下的热行为。在两个月的寒冷季节测量中,梁内的最大温差为13.3℃,最大净拉和压热应变分别为40和110微应变。In order to study the influence of thermal load on composite beam and its strain response.A special concrete-steel composite beam was poured in the open air during this study.Temperature and strain sensors were used to observe the long-term thermal response of the composite beam,and thermal behaviors of the composite beam under the thermal load in the open space were analyzed.In the two-month measurement in the cold season,the maximum temperature difference inside the composite beam was 13.3 ℃,and the maximum net tensile and compressive thermal strains were 40and 110 micro strains,respectively.

关 键 词：复合梁 太阳辐射 热荷载影响 热应变 

分 类 号：TU74[建筑科学—建筑技术科学]