文献类型：期刊文献

中文题名：高阻尼混凝土剪切阻尼性能的测试装置设计

英文题名：RESEARCH AND DESIGN OF SHEAR-TYPE DAMPING MEASURING INSTRUMENT FOR HIGH-DAMPING CONCRETE

作者：梁超锋[1];刘铁军[2];邹笃建[2]

机构：[1]绍兴文理学院土木工程系;[2]哈尔滨工业大学深圳研究生院

年份：2011

卷号：33

期号：4

起止页码：47

中文期刊名：力学与实践

外文期刊名：Mechanics in Engineering

收录：北大核心2008、CSCD_E2011_2012、北大核心、CSCD

基金：国家自然科学基金(50878070;50938001);广东省自然科学基金(9151064101000066);浙江省自然科学基金(Y1110184)资助项目

语种：中文

中文关键词：高阻尼混凝土;复阻尼模型;剪切阻尼性能;剪切型材料阻尼测试装置

外文关键词：high damping concrete; complex damping model; shear damping capacity; shear-type material damping measuring instrument

中文摘要：高阻尼混凝土的阻尼性能与工作频率紧密相关,以往测试材料阻尼性能的黏弹谱仪或动态力学分析仪,无法测试如混凝土之类大尺寸材料的剪切阻尼性能.针对高阻尼素混凝土剪切直杆,采用复阻尼模型,建立剪切振动方程,通过振型分解法求得简谐荷载激励下杆端稳态位移反应,得到了混凝土材料剪切阻尼性能的测试公式,并设计了相应的阻尼测试装置.该测试装置为研究混凝土类大尺寸材料的剪切阻尼性能和阻尼机理奠定了重要基础.

外文摘要：Concrete is the major material for infrastructures.A new,simple and inexpensive method to improve the seismic capacity of important structure components is to improve the damping capacity of concrete material. The damping capacity of the high damping concrete is frequency dependent,but the available viscoelastometer and other dynamic mechanical analyzers can not measure the shear damping capacity of a large scale material such as concrete materials.For the high damping shear-type plain concrete bar,using the damping model in complex variables,the shear vibration equations of motion are derived and then the steady displacement response under a simple harmonic load is obtained through the modal decomposition method.The testing formulae for measuring shear damping capacity of large scale materials are derived and the shear-type damping measuring instrument for large scale materials is thus designed.The suggested test theory and instrument can be used to study shear damping capacity and mechanism of high damping concrete materials.