STUDY ON THE CONSTRUCTION PROCESS OF PRESTRESSED CONCRETE FRAME TAKING ACCOUNT OF THE IMPACT OF THE SECONDARY INTERNAL FORCE
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摘要: 以东方体育中心大跨预应力混凝土框架梁为研究背景,通过对3种施工方案的模拟分析,得出不同施工方法对结构开裂弯矩、裂缝宽度、跨中挠度以及结构极限承载力的影响。最后对合理调整预应力混凝土框架结构次内力的施工方法进行探讨。Abstract: In this paper, the prestressed concrete frame beam of the Oriental Sports Center was studied for the background.Through simulation analysis of the three construction schemes, it was obtained the impacts of different construction methods on structural cracking moment, crack width, mid-span deflection and ultimate bearing capacity of the structure.Finally, reasonable construction methods to adjust the secondary internal force of prestressed concrete frame structures are discussed.
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Key words:
- secondary moment /
- secondary axial force /
- construction process
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GB 500102002混凝土结构设计规范[S]. [2] 熊学玉.预应力工程设计施工手册[M].北京:中国建筑工业出版社,2003. [3] GB 5015292混凝土结构试验方法标准[S]. [4] 吕志涛,孟少平.现代预应力设计[M].北京:中国建筑工业出版社,1998. [5] 顾祥林.混凝土结构基本原理[M].上海:同济大学出版社,2007.
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