跨渠桥梁拉索张力测定技术研究
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摘要
南水北调中线工程常选用中、下承式拱桥或斜拉桥作为跨渠大桥。拉索是大跨中、下承式拱桥或斜拉桥中重要构件。拉索的张力对全桥的内力分布有重要影响,并反映了桥梁的健康状况。介绍了拉索张力测试方法特点与拉索张力影响因素。从考虑环境因素、改进刚度识别、考虑垂度和斜度、改进数据处理技术、拉索等效长度、数值分析与曲线拟合、考虑边界条件等方面介绍了提高拉索张力测试精度考虑因素,最后,对拉索张力测试研究可能的热点问题进行了一定的展望。
The cable-stayed bridge or half through and through arch bridge are commonly selected as the cross ditch bridge in the central line of South to North Water Diversion Project. The cables are the most important components of a big span cable-stayed bridge or half through and through arch bridge. The tensions of the cables have great influence on the distribution of the internal forces of the whole bridge which reflects the health of the bridge. The test methods,characteristics and influencing factors of the cable tension were described in the study. Meanwhile,the measures of improving test precision were introduced from seven respects,including the environmental considerations,improvement of stiffness identification,consideration of sag and slope,improvement of data processing technology,equivalent length of the cable,numerical analysis and curve fitting as well as consideration of the boundary conditions. Finally,the possible hot issues in studies of cable tension test technology were forecasted.
The cable-stayed bridge or half through and through arch bridge are commonly selected as the cross ditch bridge in the central line of South to North Water Diversion Project. The cables are the most important components of a big span cable-stayed bridge or half through and through arch bridge. The tensions of the cables have great influence on the distribution of the internal forces of the whole bridge which reflects the health of the bridge. The test methods,characteristics and influencing factors of the cable tension were described in the study. Meanwhile,the measures of improving test precision were introduced from seven respects,including the environmental considerations,improvement of stiffness identification,consideration of sag and slope,improvement of data processing technology,equivalent length of the cable,numerical analysis and curve fitting as well as consideration of the boundary conditions. Finally,the possible hot issues in studies of cable tension test technology were forecasted.
引文
[1]何伟.中、下承式钢管混凝土拱桥损伤识别关键问题研究[D].郑州:郑州大学,2010.
[2]董建华.中、下承式拱桥吊索的模态分析和张力测定[D].郑州:郑州大学,2004.
[3]何祖发,郭良友.脉动法在测量斜拉桥索力中的应用[J].城市道桥与防洪,1996,(2):32-36.
[4]张宏跃,田石柱.提高斜拉索索力估算精度的方法[J].地震工程与工程振动,2004,24(4):148-151.
[5]侯俊明,彭晓彬,叶方才.斜拉索索力的温度敏感性[J].长安大学学报:自然科学版,2002,7(4):34-36.
[6]Irvine H M,Caughey T K.The linear theory of free vibrations of a suspended cable[J].Proceedings of the Royal Society of London.Series A.Mathemafical and Physical Sciences,1974,341(1626):299-315.
[7]黄雨忠.带双支撑索结构张力测试研究[D].长沙:湖南大学,2013.
[8]王卓.复杂边界条件下的桥梁索结构张力测试[D].长沙:湖南大学,2012.
[9]Ceballos M A,Prato C A.Determination of the axial force on stay cables accounting for their bending stiffness and rotational end restraints by free vibration tests[J].Journal of Sound and Vibration,2008,317(1):127-141.
[10]周云,易伟建.斜拉索截面信息未知时的刚度识别及索力计算[J].湖南农业大学学报:自然科学版,2006,32(4):445-449.
[11]陈刚.振动法测索力与实用公式[D].福州:福州大学,2004.
[12]苏成,徐郁峰,韩大建.频率法测量索力中的参数分析与索抗弯刚度的识别[J].公路交通科技,2005,22(5):75-78.
[13]冉志红,李乔.斜拉索非线性振动的奇异摄动解法[J].西南交通大学学报,2006,41(3):355-359.
[14]许俊.斜拉索索力简化计算中的精度分析[J].同济大学学报:自然科学版,2001,29(5):611-615.
[15]吴康雄,刘克明,杨金喜.基于频率法的索力测量系统[J].中国公路学报,2006,19(2):62-66.
[16]陈刚,任伟新.基于环境振动的斜拉桥拉索基频识别[J].地震工程与工程振动,2003,23(3):100-106.
[17]彭庆添,韩大建.用频率法进行斜拉桥索力测试的一种新方法[C]//第十三届全国工程建设计算机应用学术会议论文集,2006.
[18]王朝华,李国蔚,何祖发,等.斜拉桥索力测量的影响因素分析[J].世界桥梁,2004,3(4):64-67.
[19]任伟新,陈刚.由基频计算拉索拉力的实用公式[J].土木工程学报,2005,11(11):26-31.
[20]邵旭东,李国峰,李立峰.吊杆振动分析与力的测量[J].中外公路,2005,24(6):29-31.
[21]郭向荣,陈淮.弹性支承对斜拉桥拉索自振特性的影响[J].郑州工业大学学报,2000,21(1):34-36.
[22]韦立林,谢开仲,秦荣.钢管混凝土拱桥吊杆索力测试与有限元分析[J].中外公路,2007,27(2):66-69.
[23]吴文清,王成树,刘国昌,等.大跨度系杆拱桥柔性吊杆张力监测和参数识别研究[J].公路交通科技,2007,24(1):69-73.
[24]何伟,陈淮,王博,等.复杂边界条件下基于频率法的吊杆张力测定研究[J].土木工程学报,2012,45(3):93-98.
[25]何容,陈淮,何伟.考虑复合边界条件的中、下承式拱桥吊杆张力计算公式[J].中国铁道科学,2012,33(5):15-21.
[26]何容,何伟,陈淮,等.复合边界条件下基于能量法吊索张力实用公式[J].振动、测试与诊断,2013,33(2):187-191,334.
[27]刘志军,芮筱亭,钟继卫,等.索力振动测量的有限差分传递矩阵法[J].振动、测试与诊断,2012,32(3):384-386,512.
[2]董建华.中、下承式拱桥吊索的模态分析和张力测定[D].郑州:郑州大学,2004.
[3]何祖发,郭良友.脉动法在测量斜拉桥索力中的应用[J].城市道桥与防洪,1996,(2):32-36.
[4]张宏跃,田石柱.提高斜拉索索力估算精度的方法[J].地震工程与工程振动,2004,24(4):148-151.
[5]侯俊明,彭晓彬,叶方才.斜拉索索力的温度敏感性[J].长安大学学报:自然科学版,2002,7(4):34-36.
[6]Irvine H M,Caughey T K.The linear theory of free vibrations of a suspended cable[J].Proceedings of the Royal Society of London.Series A.Mathemafical and Physical Sciences,1974,341(1626):299-315.
[7]黄雨忠.带双支撑索结构张力测试研究[D].长沙:湖南大学,2013.
[8]王卓.复杂边界条件下的桥梁索结构张力测试[D].长沙:湖南大学,2012.
[9]Ceballos M A,Prato C A.Determination of the axial force on stay cables accounting for their bending stiffness and rotational end restraints by free vibration tests[J].Journal of Sound and Vibration,2008,317(1):127-141.
[10]周云,易伟建.斜拉索截面信息未知时的刚度识别及索力计算[J].湖南农业大学学报:自然科学版,2006,32(4):445-449.
[11]陈刚.振动法测索力与实用公式[D].福州:福州大学,2004.
[12]苏成,徐郁峰,韩大建.频率法测量索力中的参数分析与索抗弯刚度的识别[J].公路交通科技,2005,22(5):75-78.
[13]冉志红,李乔.斜拉索非线性振动的奇异摄动解法[J].西南交通大学学报,2006,41(3):355-359.
[14]许俊.斜拉索索力简化计算中的精度分析[J].同济大学学报:自然科学版,2001,29(5):611-615.
[15]吴康雄,刘克明,杨金喜.基于频率法的索力测量系统[J].中国公路学报,2006,19(2):62-66.
[16]陈刚,任伟新.基于环境振动的斜拉桥拉索基频识别[J].地震工程与工程振动,2003,23(3):100-106.
[17]彭庆添,韩大建.用频率法进行斜拉桥索力测试的一种新方法[C]//第十三届全国工程建设计算机应用学术会议论文集,2006.
[18]王朝华,李国蔚,何祖发,等.斜拉桥索力测量的影响因素分析[J].世界桥梁,2004,3(4):64-67.
[19]任伟新,陈刚.由基频计算拉索拉力的实用公式[J].土木工程学报,2005,11(11):26-31.
[20]邵旭东,李国峰,李立峰.吊杆振动分析与力的测量[J].中外公路,2005,24(6):29-31.
[21]郭向荣,陈淮.弹性支承对斜拉桥拉索自振特性的影响[J].郑州工业大学学报,2000,21(1):34-36.
[22]韦立林,谢开仲,秦荣.钢管混凝土拱桥吊杆索力测试与有限元分析[J].中外公路,2007,27(2):66-69.
[23]吴文清,王成树,刘国昌,等.大跨度系杆拱桥柔性吊杆张力监测和参数识别研究[J].公路交通科技,2007,24(1):69-73.
[24]何伟,陈淮,王博,等.复杂边界条件下基于频率法的吊杆张力测定研究[J].土木工程学报,2012,45(3):93-98.
[25]何容,陈淮,何伟.考虑复合边界条件的中、下承式拱桥吊杆张力计算公式[J].中国铁道科学,2012,33(5):15-21.
[26]何容,何伟,陈淮,等.复合边界条件下基于能量法吊索张力实用公式[J].振动、测试与诊断,2013,33(2):187-191,334.
[27]刘志军,芮筱亭,钟继卫,等.索力振动测量的有限差分传递矩阵法[J].振动、测试与诊断,2012,32(3):384-386,512.
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