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Moving ships and other objects drifting on water often impact a bridge's pile foundation. The mechanical model of the piles-bridge
structure under horizontal forcing was established, and a time-domain approach based on Finite-difference Method was developed
for analyzing the dynamic response of the piles-bridge structure. For a single pile, good agreement between two computed results
validated the present approach. The slenderness ratio of the pile, the pile-soil stiffness ratio and the type of the structure
influence the dynamic response of the piles-bridge structure. The computed results showed that the stiffness of the structure
determines the dynamic response of the piles-bridge structure under horizontal forcing.
Project (No. 001110442) supported by the Science and Technology Bureau of Zhejiang Province, China. 相似文献
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ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅｉｍｐａｃｔｏｎｐｉｌｅｓ ｂｒｉｄｇｅｓｔｒｕｃｔｕｒｅｓｂｙｍｏｖｉｎｇｓｈｉｐｓｏｒｏｔｈｅｒｄｒｉｆｔｉｎｇｏｂｊｅｃｔｓｏｆｔｅｎｄｅ ｓｔｒｏｙｓｔｈｅｂｒｉｄｇｅ,ｓｏｉｔｉｓｉｍｐｏｒｔａｎｔｔｏｓｔｕｄｙｔｈｅ 相似文献
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INTRODUCTIONInterestinonedimensionalwavepropagationtheoryforapplicationtounderstandingpiledriv ingismorethanacenturyold .ImportantworkdirectlyrelatedtocurrentapplicationstopiledrivabilitystartedshortlyaftertheSecondWorldWarandcontinuedtothepresent,assuchp… 相似文献
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ＩＮＴＲＯＤＵＣＴＩＯＮＩｔｈａｄｂｅｅｎｒｅｃｏｇｎｉｚｅｄｔｈａｔｄｕｒｉｎｇｐｉｌｅｄｒｉｖ ｉｎｇｔｈｅｒｅｂｏｕｎｄｏｆａｐｉｌｅ ｔｏｐｇｉｖｅｓｍｏｒｅｉｎｆｏｒｍａ ｔｉｏｎａｂｏｕｔｒｅｓｉｓｔａｎｃｅｔｈａｎｔｈｅｐｅｎｅｔｒａｔｉｏｎ (Ｃｈｅｎｅｔａｌ.,1 996;Ｃｈｅｎｅｔａｌ.,1 997;Ｕｔｏｅｔａｌ.,1 992 ) .ＴｈｅｄｅｖｅｌｏｐｍｅｎｔｏｆｔｈｅｔｈｅｏｒｅｔｉｃａｌｍｏｄｅｌｏｆｔｈｅｐｏｉｎｔｒｅｓｉｓｔａｎｃｅｏｂｔａｉｎｅｄｆｒｏｍＰＤ ａｎｄＰＤＡ ｍｅａｓｕｒｅｍｅｎ… 相似文献
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Pile drivability is a key problem during the stage of design and construction installation of pile foundations. The solution to the one dimensional wave equation was used to determine the impact force at the top of a concrete pile for a given ram mass, cushion stiffness, and pile impedance. The kinematic equation of pile toe was established and solved based on wave equation theory. The movements of the pile top and pile toe were presented, which clearly showed the dynamic displacement, including rebound and penetration of pile top and toe. A parametric study was made with a full range of practical values of ram weight, cushion stiffness, dropheight, and pile impedance. Suggestions for optimizing the parameters were also presented. Comparisons between the results obtained by the present solution and in-situ measurements indicated the reliability and validity of the method. 相似文献
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ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅｂｕｒｉｅｄｐｉｐｅｌｉｎｅｃａｎｂｅｃｌａｓｓｉｆｉｅｄｉｎｔｏｔｈｒｅｅｄｉｆｆｅｒｅｎｔｔｙｐｅｓ .Ｄｕｅｔｏｔｈｅｄｉｆｆｅｒｅｎｃｅｏｆｔｈｅｒｅｌａｔｉｖｅｓｅｔｔｌｅｍｅｎｔｂｅｔｗｅｅｎｔｈｅｐｉｐｅａｎｄｔｈｅｓｏｉｌｃｌｏｓｅｔｏｉｔｓｔｗｏｓｉｄｅｓ ,ｔｈｅｖｅｒｔｉｃａｌｐｒｅｓｓｕｒｅｏｎｔｈｅｐｉｐｅｖａｒｉｅｓｄｉｆｆｅｒｅｎｔｌｙ .Ｗｈｅｎｔｈｅｆｉｌｌｉｓｈｉｇｈｅｎｏｕｇｈ ,ｔｈｅｖｅｒｔｉｃａｌｐｒｅｓｓｕｒｅｉｓｔｈｅｍｏｓｔ… 相似文献
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