【摘要】 通过现场实测 ,力图全面准确地把握钢筋混凝土结构在施工期的基本特征。特别介绍在施工现场采用多种量测手段较全面地对结构施工过程中的荷载、材料、内力、变形等特征进行的全周期量测 ,以及捕捉到的重要现象。通过对现场实测数据的分析和讨论 ,获得了结构在施工过程中的基本特征以及荷载传递的规律。发现楼板随着新浇混凝土强度和刚度的增长 ,在环境温度变化、混凝土早期徐变等作用下 ,将逐渐承担其结构自重 ,从而使整个结构的荷载不断地进行重新分配更多还原

【Abstract】 An attempt is made to study the characteristics of the reinforced concrete structures during construction Some efforts are made to measure and to analyze the loads,the material properties,the internal forces in shores and slabs,and the displacements of the structural members during construction We observe some phenomena and obtain some results that have not repor?ted before The fundamental characteristics and the rule of load transmission are obtained for a time?dependent structure A freshly placed concrete slab is gradually to carry a part of its weight during a curing process It causes that the construction loads re?distribute between the slab and the other parts of a Time?dependent structure更多还原