某砖石古塔动力特性测试研究

英文篇名：Test study of dynamic behavior of an ancient masonry tower
中文刊名：四川建筑科学研究
英文刊名：Sichuan Building Science
作者：侯俊锋 ; 苏三庆 ; 王社良
英文作者：HOU Junfeng1 ; SU Sanqing1 ; WANG Sheliang2(1.College of Architecture and Civil Engineering ; Xi'an University of Science and Technology ; Xi'an 710054 ; China ; 2.College of Civil Engineering ; Xi'an University of Architecture and Technology ; Xi'an 710055 ; China)
中文关键词：砖石古塔 ; 动力特性 ; 测试 ; 时程分析
英文关键词：ancient masonry tower ; dynamic behavior ; test ; time history analysis
出版日期：2010-02-25
机构：西安科技大学建筑与土木工程学院;西安建筑科技大学土木工程学院;
年：2010
期：01
出版单位：四川建筑科学研究

摘要

动力特性是结构自身的重要特征之一,是评价古塔抗震性能和损伤状态的重要指标。采用敲击激振法对某砖石古塔的动力特性进行了测试,根据测试所得各测点的加速度时程和自功率谱函数图,分析了结构的自振频率和阻尼及结构振型,并用有限元软件ANSYS对测试结果进行了进一步验证。测试和分析结果可为同类古塔的维护和开发提供理论依据。
The dynamic behavior is the important character to evaluate the seismic property and damage of ancient towers.This paper discusses the test method for applied hammering excitation technology to determine the dynamic behavior of the ancient masonry tower.The structural natural frequencies,mode shapes and damping ratio are analyzed according to acceleration time history and power spectrum curves of the ancient tower.The test scheme is verified by the results of finite element code ANSYS.It is believed that the results of test and analysis can provide a theory reference for the maintenance and development of similar ancient masonry tower.

引文

[1]袁建力,樊华,等.虎丘塔动力特性的试验研究[J].工程力学,2005,25(5):158-164.
    [2]温瑞智,周正华,等.应县木塔环境振动试验[J].地震工程与工程振动,2006,26(4):136-140.
    [3]Bonzi A,Pizzigalli E,Eusebio M,Ravasio.Dynamic test and moni-toring of the Leaning Tower of Pisa.Aims,methodology and results[R].In ISMES,Italian group of IABSE,Colloquium,Seriate,1997.
    [4]Abruzzese D.Dynamic behavior control of structures using real timemonitoring system[C].1st International Conf.on Open Buildingand Structural Engineering,Nanjing,China,October,1995:18-20.
    [5]陈平,姚谦峰,赵冬.西安大雁塔抗震能力研究[J].建筑结构学报,1999,20(1):46-49.
    [6]应怀樵.波形和频谱分析与随机数据处理[M].北京:中国铁道出版社,1985.
    [7]欧进萍,王光远.结构随机振动[M].北京:高等教育出版社,1998.