装配式靠船墩接缝连接状态动力试验研究  

Joint Connection of Prefabricated Dolphin by Dynamic Test

作　　者：邓昌[1,2] 张永胜[3] 顾培英[1,2] 宋迎俊 DENG Chang;ZHANG Yongsheng;GU Peiying;SONG Yingjun(Materials and Structural Engineering Department,Nanjing Hydraulic Research Institute,Nanjing 210029,China;Key Laboratory of Water Science and Engineering,Ministry of Water Resources,Nanjing 210029,China;Jiangsu Provincial Transportation Engineering Group Co.,Ltd.,Zhenjiang 212100,China)

机构地区：[1]南京水利科学研究院材料结构研究所,南京210029 [2]水利部水科学与水工程重点实验室,南京210029 [3]江苏省交通工程集团有限公司,镇江212100

出　　处：《现代交通技术》2020年第3期84-87,共4页Modern Transportation Technology

摘　　要：通过锤击激励动力试验,获得现浇靠船墩与两种装配式靠船墩的动刚度,确定装配式靠船墩接缝连接状态,并在设计吨位船舶靠船激励作用下,测得靠船墩的速度响应。研究结果表明:内置钢管装配式靠船墩与现浇式靠船墩的动刚度相对较为接近,内置钢架装配式靠船墩的动刚度最小;两种装配式靠船墩接缝上下位置处响应信号吻合良好,未见高频杂波与时延现象,连接良好;靠船激励作用下靠船墩横向速度响应最大,竖向最小,3座靠船墩的速度响应较为一致。In order to obtain the dynamic stiffness of cast-in-place and prefabricated dolphins,dynamic tests were applied by hammer excitation.The joint connections of prefabricated dolphins were determined according to the test results.Additionally,the velocity responses of dolphins were obtained by the ship-berthing impact of design tonnage ship.The results show that the dynamic stiffness of prefabricated dolphin with built-in steel pipe is relatively close to that of the cast-in-place dolphin.The dynamic stiffness of prefabricated dolphin with built-in steel frame is the smallest.The responses match well at the upper and lower positions of the joints.There are no high-frequency clutter and time delay for prefabricated dolphin.The joint connections are well.The velocity response of transverse is the largest by ship excitation.The vertical velocity response is the smallest.The velocity responses of the three dolphins are nearly consistent.

关 键 词：装配式靠船墩 动力试验 动刚度 接缝连接性 锤击激励 

分 类 号：U641.36[交通运输工程—船舶及航道工程]