| 考虑收缩徐变的施工期大跨砼结构内力分析 |
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| 引用本文： | 赵军,缪昌国,阳小超,戴昌强.考虑收缩徐变的施工期大跨砼结构内力分析[J].科学技术与工程,2017,17(5). |
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| 作者姓名： | 赵军 缪昌国 阳小超 戴昌强 |
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| 作者单位： | 桂林理工大学 广西岩土力学与工程重点实验室,桂林理工大学 广西岩土力学与工程重点实验室,桂林理工大学 广西岩土力学与工程重点实验室,桂林理工大学 广西岩土力学与工程重点实验室 |
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| 基金项目： | 国家自然科学(51568016); 广西矿冶与环境科学实验中心项目(KH2011YB025) |
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| 摘 要： | 针对施工期钢筋混凝土大跨结构的安全问题,结合工程实例,获取了考虑收缩徐变和未考虑收缩徐变时施工期内力和变形的时变规律。研究表明:当采用二层支模时,第二层梁的内力和变形在拆模阶段将发生突变,对结构造成不可忽略的影响。
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| 关 键 词： | 施工期 收缩 徐变 大跨 |
| 收稿时间： | 2016/7/1 0:00:00 |
| 修稿时间： | 2016/8/31 0:00:00 |
A Research of large span Concrete Structure Reliability Considering Creep and Shrinkage during Construction |
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| Zhao Jun,Yang Xiaochao and Dai Changqiang.A Research of large span Concrete Structure Reliability Considering Creep and Shrinkage during Construction[J].Science Technology and Engineering,2017,17(5). |
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| Authors: | Zhao Jun Yang Xiaochao and Dai Changqiang |
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| Institution: | Guangxi Key Laboratory of Geomechanics and Geotechnical Engineering,Guilin University of Technology,Guangxi Key Laboratory of Geomechanics and Geotechnical Engineering,Guilin University of Technology |
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| Abstract: | For reinforced concrete during the construction safety of long-span structure, combined with the engineering example, creep and shrinkage of obtained considering not considering the creep of contraction time varying law of internal force and deformation during the construction. Research shows that: when using the mould on the second floor, the second beam of internal force and deformation in ripping stage will mutate, significant effects on the structure. |
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| Keywords: | construction period Contraction Creep large-span |
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