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两步单参数法研究预应力度对弯箱梁桥的影响

Keywords: 弯箱梁桥,两步单参数法,预应力度,圆心角,桥长

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Abstract:

为了研究预应力度对弯箱梁桥的影响,以桥长、圆心角和预应力度为参数建立了180个二等跨连续弯箱梁桥模型,采用两步单参数拟合法进行数据处理,拟合出极限状态下控制截面上的应力、单位位移与圆心角、桥长和预应力度的显示函数关系.提出了弯箱梁桥截面上预应力度的计算公式,并选定了2个指标A、Δ来表征弯箱梁桥结构反应受预应力度影响趋势及程度。

References

[1]  张钧利.曲线箱梁桥的病害分析及涉及对策[J].中外公路,2005,25(4):102-105.ZHANG Jun-li.Disease analysis and designcountermeasures on diseases of curved box girder bridges[J].Journal of China&Foreign Highway,2005,25(4):102-105.(in Chinese)
[2]  张贻能,刘华,俞博.预应力混凝土弯箱梁桥支座反力及扭转分析[J].公路工程,2007,32(6):34-37.ZHANG Yi-neng,LIU Hua,YU Bo.Recation and torsionanalysis of PC curved box girder bridges[J].HighwayEngineering,2007,32(6):34-37.(in Chinese)
[3]  郭锋,周国祥.预应力弯梁桥的设计[J].铁道建设,2000(9):29.GUO Feng,ZHOU Guo-xiang.Design of prestressedcurved bridges[J].Railroad Construction,2000(9):29.(in Chinese)
[4]  李广慧,余正武,王用中.曲线连续梁桥的病害与温度效应[J].公路交通科技,2008,25(1):58-63.LI Guang-hui,YU Zheng-wu,WANG Yong-zhong.Diseases of curved contiuous bridge and temperature effect[J].Journal of Highway and Transportation Research andDevelpoment,2008,25(1):58-63.(in Chinese)
[5]  邓晓红,万麟,陈冠华.小半径预应力连续弯箱梁桥分析[J].山西科技,2011,26(1):80-81.DENG Xiao-hong,WAN Lin,CHEN Guan-hua.Analysison minor-radius prestressed curved girder bridges[J].Shanxi Science and Technology,2011,26(1):80-81.(in Chinese)
[6]  李建慧,宋旭明.独柱支承预应力连续弯箱梁扭矩调整[J].黑龙江工程学院学报,2003,17(1):21-24.LI Jian-hui,SONG Xu-ming.The adjustment of torsionmoment for single-column supported continuous curvedprestressed beam bridge[J].Journal of HeilongjiangInstitute of Technology,2003,17(1):21-24.(inChinese)
[7]  李国平.预应力混凝土结构设计原理[M].北京:人民交通出版社,2000:4-5
[8]  张敬珍,陈偕民,徐岳.钢筋混凝土弯桥计算模型的研究[J].中外公路,2002,22(6):70-71.ZHANG Jing-zhen,CHEN Xie-min,XU Yue.Study oncalculation models of reinforced concrete curved bridges[J].Journal of China&Foreign Highway,2002,22(6):70-71.(in Chinese)
[9]  宋国华,罗玲,王东炜.偏心支承对120°圆心角双跨弯箱梁桥的影响[J].桥梁建设,2005(4):44-47.SONG Guo-hua,LUO Ling,WANG Dong-wei.Influencesof eccentric supports on two-span curved box girder bridgeswith 120°central angles[J].Bridge Construction,2005(4):44-47.(in Chinese)

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