无伸缩缝桥梁的动力特性计算与试验研究

英文篇名：Dynamic analysis and field-test of jointless bridge
中文刊名：地震工程与工程振动
英文刊名：Earthquake Engineering and Engineering Vibration
作者：彭大文 ; 洪锦祥 ; 郭爱民 ; 方德铭
英文作者：Peng Dawen~(1) ; Hong Jinxiang~(2) ; Guo Aimin~(3) ; Fang Deming~(3) (1.Department of Civil Engineering and Architecture ; Shanghai Institute of Technology ; Shanghai 200235 ; China ; 2.College of Civil Engineering and Architectures ; Fuzhou University ; Fuzhou 350002 ; China ; 3.Fujian Province Highway Administration ; Fuzhou 350004 ; China)
中文关键词：无伸缩缝桥梁 ; 整体式桥台 ; 动力特性 ; 试验
英文关键词：jointless bridge ; integral abutment ; dynamic characteristics ; test
出版日期：2005-04-20
机构：上海应用技术学院土木与建筑工程系,福州大学土木建筑工程学院,福建省公路管理局,福建省公路管理局上海200235 ,福建福州350002 ,福建福州350004 ,福建福州350004
年：2005
期：02
出版单位：地震工程与工程振动

摘要

福建省永春县上坂大桥是目前我国修建桥长最大,采用整体式桥台的无伸缩缝桥梁。本文通过该桥的动力试验研究了该桥在天然脉动荷载作用下的自振特性,采用结构分析软件ANSYS建立全桥的空间模型,计算该桥的自振特性,与实测结果进行了分析比较。实桥试验还测试了无障碍行车试验和跳车试验这2种车辆激振作用下桥梁的强迫振动特性,并把实测的荷载冲击系数与新桥规的计算结果进行比较。研究结果有助于对该类桥梁动力特性的认识,有利于进一步开展无伸缩缝桥梁的抗震性能研究。
Shangban bridge is the most long integral abutment bridge in China. It is located in Yongchun county, Fujian province. In this paper, the test research on the characteristics of the natural vibration for the bridge is discussed. The authors calculate the characteristics of the natural vibration for the bridge with the structure analysis software-ANSYS, and compare them with the test results. The vibratory characteristics of the structure are also tested under a traveling truck and a truck with obstacle. The research results are helpful for the knowledge of dynamic characteristics of these bridges and help us to research the seismic properties of jointless bridge.

引文

[1]　彭大文.无伸缩装置桥梁的发展[J].福州大学学报(自然科学版),2000,28(2):70~75.
    [2]　张亮,宁夏元.设置小边跨的无缝连续梁桥设计[J].中南公路工程,1998,23(2):18~20.
    [3]　马竞,金晓勤.我国第一座整体式全无缝桥梁—广东清远四九桥—的设计思路[J].中南公路工程,2002,27(2):32~34.
    [4]　金晓勤,邵旭东.整体式无缝桥梁的研究与应用[J].重庆交通学院学报,2002,21(3):7~10.
    [5]　洪锦祥,彭大文,汪新惠.整体式桥台桥梁的台后被动土压力研究[J].福州大学学报(自然科学版),2003,31(6):721~725.
    [6]　JTGD60-2004,公路桥涵设计通用规范[S].
    [7]　RakeshKGoel.Earthquakecharacteristicsofbridgeswithintegralabutments[J].JournalofStructureEngineering,ASCE,1997,123(11):1435~1443.
    [8]　彭大文,汪新惠,洪锦祥.无伸缩缝桥梁的动力特性研究[J].地震工程与工程振动,2003,23(4):95~99.