高桩码头叉桩布置形式抗震性能分析
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摘要
以湛江某高桩码头单个结构段为研究对象,建立空间有限元模型,采用反应谱法对水平地震作用横向、纵向输入进行地震动力响应分析,对比分析了4种叉桩布置形式在不同水平方向地震作用下码头桩基内力受力特性。计算结果表明:桩基横轴对称布置结构在横向水平地震作用时,整体最大位移和桩内力均较小;桩基双轴对称布置形式在不同水平方向地震作用下结构响应比其他形式相对较小。在高桩码头的抗震设计中,叉桩不会碰桩的情况下,采用桩基双轴对称布置形式较为合理。
A spatial finite element model was built,and the response spectrum method was used to analyze the dynamic seismic response under the horizontal earthquake effect along the transverse and longitudinal directions,in a structural segment of a high-pile wharf.The internal stress characteristics of the pile foundations of four fork pile arrangements under different horizontal earthquake effects were compared and analyzed.The calculation results show that when the pile foundation in a transverse symmetry arrangement was responding to transverse earthquake effect,the whole maximal displacement and internal force of piles were small,and the structural response of the pile foundation in symmetrical arrangement under different horizontal earthquake effects was smaller than that in other arrangements.When the fork piles do not collide,it is more reasonable to use the symmetrical arrangement type for pile foundations in the seismic design of high-pile wharfs.
A spatial finite element model was built,and the response spectrum method was used to analyze the dynamic seismic response under the horizontal earthquake effect along the transverse and longitudinal directions,in a structural segment of a high-pile wharf.The internal stress characteristics of the pile foundations of four fork pile arrangements under different horizontal earthquake effects were compared and analyzed.The calculation results show that when the pile foundation in a transverse symmetry arrangement was responding to transverse earthquake effect,the whole maximal displacement and internal force of piles were small,and the structural response of the pile foundation in symmetrical arrangement under different horizontal earthquake effects was smaller than that in other arrangements.When the fork piles do not collide,it is more reasonable to use the symmetrical arrangement type for pile foundations in the seismic design of high-pile wharfs.
引文
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[6]张娟,贡金鑫.中美日板桩码头抗震设计方法比较研究[J].水运工程,2010(9):136-154.(ZHANG Juan,GONG Jinxin.Comparative analysis on seismic design approach of sheet pile wharf in China,the U.S.and Japan[J].Port&Waterway Engineering,2010(9):136-154.(in Chinese))
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[10]ROEDEREOT C W.Seismic performance of pile-wharf connection[D].Berkeley:University of California,Berkeley,Pacific EarthquakeEngineering Research Center,2001.
[11]MCCULLOUGH N J,DICKENSON S E,SCHLECHTER S M.The seismic performance of piles in waterfront applications[C]//ASCEConf Proc America’s Ports:Gateways to the Global Economy Proceedings of Ports Conference 2001.USA ASCE,2001:1-10.
[12]徐龙军,谢礼力,胡进军.抗震设计谱的发展及相关问题综述[J].世界地震工程.2007,23(2):46-57.(XU Longjun,XIE Lili,HU Jinjun.The review of development and certain problems in seismic design spectra[J].World Information on EarthquakeEngineering,2007,23(2):46-57.(in Chinese))
[13]LONG Binghuang,ROEDER C W.Dynamic Performance of Pile Wharf Structural System[R].Washington D.C.:University ofWashington,2004.
[14]王新敏.ANSYS工程结构数值分析[M].北京:人民交通出版社,2007.
[2]许锡宾.从天津港码头设施的震害谈高桩码头结构设计[J].水运工程,1993(4):18-22.(XU Xibin.From the earthquakedamage ofTianjin Port terminal facilities about structural design of high-pile wharf[J].Port&Waterway Engineering,1993(4):18-22.(in Chinese))
[3]谢世楞.奥克兰港高桩码头的震害对比[J].港工技术,1990(4):13-17.(XIE Shileng.Contrast of Auckland high-pile wharf’searthquake damage[J].Port Engineering Technology,1990(4):13-17.(in Chinese))
[4]JTJ225—98水运工程抗震设计规范[S].北京:人民交通出版社,1998.
[5]龙炳煌,雷立志.高桩码头叉桩震害分析及设计建议[J].中国港湾建设,2007(1):7-10.(LONG Binghuang,LEI Lizhi.SeismicAnalysis of and Design Suggestions for Batter-Piles in Pile-Wharfs[J].China Harbour Engineering,2007(1):7-10.(in Chinese))
[6]张娟,贡金鑫.中美日板桩码头抗震设计方法比较研究[J].水运工程,2010(9):136-154.(ZHANG Juan,GONG Jinxin.Comparative analysis on seismic design approach of sheet pile wharf in China,the U.S.and Japan[J].Port&Waterway Engineering,2010(9):136-154.(in Chinese))
[7]徐伟国.高桩码头桩基布置力学判断浅析[J].水运工程,1988(11):32-35.(XU Weiguo.The mechanical judge analysis of pilelayout of high-pile wharf[J].Port&Waterway Engineering,1988(11):32-35.(in Chinese))
[8]邓重健.高桩码头的抗震设计[J].港口工程,1987(3):26-31.(DENG Chongjian.The seismic design ofthe pile wharf[J].HarborEngineering,1987(3):26-31.(in Chinese))
[9]李培振,吕西林.考虑土-结构相互作用的高层建筑抗震分析[J].地震工程与工程振动,2004,24(3):130-138.(LI Peizhen,LU Xilin.Considering the interaction between soi-l structure of the high-rise building seismic analysis[J].Earthquake Engineering andEngineering Vibration,2004,24(3):130-138.(in Chinese))
[10]ROEDEREOT C W.Seismic performance of pile-wharf connection[D].Berkeley:University of California,Berkeley,Pacific EarthquakeEngineering Research Center,2001.
[11]MCCULLOUGH N J,DICKENSON S E,SCHLECHTER S M.The seismic performance of piles in waterfront applications[C]//ASCEConf Proc America’s Ports:Gateways to the Global Economy Proceedings of Ports Conference 2001.USA ASCE,2001:1-10.
[12]徐龙军,谢礼力,胡进军.抗震设计谱的发展及相关问题综述[J].世界地震工程.2007,23(2):46-57.(XU Longjun,XIE Lili,HU Jinjun.The review of development and certain problems in seismic design spectra[J].World Information on EarthquakeEngineering,2007,23(2):46-57.(in Chinese))
[13]LONG Binghuang,ROEDER C W.Dynamic Performance of Pile Wharf Structural System[R].Washington D.C.:University ofWashington,2004.
[14]王新敏.ANSYS工程结构数值分析[M].北京:人民交通出版社,2007.
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