上承式预应力拉杆拱形渡槽动力性能研究

英文篇名：DYNAMIC BEHAVIOR STUDY ON TOP-SUPPORTED PRE-STRESSED TIE-ARC AQUEDUCT
中文刊名：山东农业大学学报(自然科学版)
英文刊名：Journal of Shandong Agricultural University(Natural Science Edition)
作者：孙伟 ; 宋晓辉 ; 刘纯祥
英文作者：SUN Wei1 ; SONG Xiao-hui2 ; LIU Chun-xiang1 (1.Taian City Investigation ; Design and Research Institute of Water Conservancy ; Taian 271000 ; China 2.Hengji Real Estate Company ; Taian 271000 ; China
中文关键词：上承式预应力拉杆拱形渡槽 ; 动力性能 ; 模态分析
英文关键词：Top-supported pre-stressed tie-arc aqueduct ; dynamic behavior ; modal analysis
出版日期：2011-06-15
机构：泰安市水利勘测设计研究院;山东泰安恒基置业发展有限公司;
年：2011
期：02
出版单位：山东农业大学学报(自然科学版)

摘要

上承式预应力拉杆拱形渡槽是一种新型的渡槽结构形式,与传统的渡槽结构形式相比结构更紧凑、不对桥墩产生水平推力而且槽墩轻巧、施工方便,有较高的工程应用价值。通过对界河上承式预应力拉杆拱形渡槽结构动力性能的监测分析并结合ANSYS有限元软件进行模态分析,对该类型结构形式的动力性能做了详细分析。分析结果表明:渡槽的振动周期较长,属于柔性结构;渡槽结构以槽身的横向振动为主;渡槽的竖向刚度相对较强,而槽身平面外刚度较弱。
Top-supported pre-stressed tie-arc aqueduct is a new type of aqueduct,which possesses many advantages such as compact integer structure,no horizontal force on support piers,light pier and easy construction.Therefore,the new aqueduct has very high applicable values in engineering.Through on-site monitor and ANSYS modal analysis,detailed analysis on dynamic behavior of Jiehe top-supported pre-stressed tie-arc aqueduct is performed.The results show that the aqueduct is flexible structure because of long vibration period,transverse vibration is dominating,vertical rigidity is strong while out-plane rigidity of aqueduct is weak.

引文

[1]姜葵红,和桂玲,李玉莹,等.界河大型预应力拉杆拱渡槽设计与研究[J].中国农村水利水电,2006,10:66-70
    [2]王博.大型渡槽结构模态[J].地震工程与工程振动,2000,20(3):60-66
    [3]项海帆,刘光栋.拱结构的稳定与振动[M].北京:人民交通出版社,1991
    [4]金成棣.预应力混凝土梁拱组合桥梁设计研究与实践[M].北京:人民交通出版社,2001