| 全面考虑次内力影响的预应力混凝土框架施工过程研究 |
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| 引用本文： | 熊学玉,程琛,李媛,吕品.全面考虑次内力影响的预应力混凝土框架施工过程研究[J].工业建筑,2011,41(12):12-15. |
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| 作者姓名： | 熊学玉 程琛 李媛 吕品 |
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| 作者单位： | 同济大学预应力研究所,上海,200092 |
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| 基金项目： | 国家工程建设行业标准《预应力混凝土结构设计规范》研究项目;上海市科委科技支撑计划(09231201102);国家自然科学基金(E080501);教育部高等学校博士学科点专项科研基金(20090072110051);铁道部重点课题(2010G009-K);科技部创新项目(10C26213100691) |
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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。
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| 关 键 词： | 次弯矩 次轴力 施工过程 |
STUDY ON THE CONSTRUCTION PROCESS OF PRESTRESSED CONCRETE FRAME TAKING ACCOUNT OF THE IMPACT OF THE SECONDARY INTERNAL FORCE |
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| Affiliation: | Xiong Xueyu Cheng Chen Li Yuan Lü Pin(Institute of Prestressed Structures,Tongji University,Shanghai 200092,China) |
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| 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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| Keywords: | secondary moment secondary axial force construction process |
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