| 施工期钢筋混凝土结构特性的实测研究 |
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| 引用本文： | 方东平,祝宏毅,耿川东,刘西拉.施工期钢筋混凝土结构特性的实测研究[J].土木工程学报,2001(2). |
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| 作者姓名： | 方东平 祝宏毅 耿川东 刘西拉 |
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| 作者单位： | 清华大学 |
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| 基金项目： | 国家基础研究和应用基础研究重大项目 :重大土木及水利工程安全性与耐久性的基础研究”资助 |
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| 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
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| 关 键 词： | 钢筋混凝土结构 施工期 现场实测 荷载重新分配 |
ON-SITE MEASUREMENTS OF CHARACTERISTICS OF REINFORCED CONCRETE STRUCTURES |
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| Fang Dongping,Geng Chuandong Zhu Hongyi Liu Xila.ON-SITE MEASUREMENTS OF CHARACTERISTICS OF REINFORCED CONCRETE STRUCTURES[J].China Civil Engineering Journal,2001(2). |
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| Authors: | Fang Dongping Geng Chuandong Zhu Hongyi Liu Xila |
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| Affiliation: | Tsinghua University |
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| 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 |
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| Keywords: | reinforced concrete structures during construction time?dependent structures load transmission on?site measurement load re?distribution |
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