黏滞阻尼器在时程分析下的附加有效阻尼比研究

PDF(725 KB)

振动与冲击 ›› 2019, Vol. 38 ›› Issue (4) : 258-262.

论文

吴旭1，周美容1，陈曦2，张雪梅1

作者信息 +

A study on additional effective damping ratio of viscous dampers from time-uistory analysis

WU Xu1,ZHOU Meirong1,CHEN Xi2,ZHANG Xuemei1

Author information +

文章历史 +

摘要

为了研究消能减震结构中黏滞阻尼器在时程分析中所提供的附加有效阻尼比，从阻尼力做功（阻尼能）的角度出发，建立阻尼能与附加有效阻尼比在时程过程中的关系，提出附加有效阻尼比的理论计算公式，并建立有限元分析模型来验证该公式，对比消能减震结构与等效结构的阻尼能。结果表明，该阻尼比计算公式比现有的其它公式具有更强的通用性及合理性，适用于计算黏滞阻尼器在任意时程分析过程中的附加有效阻尼比，且消能减震结构与等效结构具有相同的阻尼能。

Abstract

To investigate additional effective damping ratio contributed by viscous dampers in structures during time-history analysis,by focusing on the work done by damping forces (damping energy),the paper established a relation between damping energy and equivalent damping ratio in time-history analysis,put forward theoretical formula of additional effective damping ratio,created finite element analysis models to testify the formula,and compared damping energies of the energy dissipation structure and an equivalent structure.The results show that the formula of equivalent damping ratio is more versatile and reasonable than other current formulae.It is applicable for calculating additional effective damping ratio of a energy dissipation structure in any time-history load case,and make energy dissipation structure and equivalent structure to have equal damping energy.

导出引用

吴旭1，周美容1，陈曦2，张雪梅1. 黏滞阻尼器在时程分析下的附加有效阻尼比研究[J]. 振动与冲击, 2019, 38(4): 258-262

WU Xu1,ZHOU Meirong1,CHEN Xi2,ZHANG Xuemei1. A study on additional effective damping ratio of viscous dampers from time-uistory analysis[J]. Journal of Vibration and Shock, 2019, 38(4): 258-262

参考文献

[1] 巫振弘, 薛彦涛, 王翠坤, 等. 多遇地震作用下消能减震结构附加阻尼比计算方法 [J] . 建筑结构学报, 2013, 34(12): 19-25(Wu Zhenhong, Xue Yantao, Wang Cuikun. Research on additional damping ratio calculation methods under frequent earthquake [J] . Journal of Building Structures, 2013, 34(12): 19-25(in Chinese))
[2] 胡岫岩, 任晓崧, 翁大根, 等. 附加黏滞阻尼器结构附加等效阻尼比算法研究 [J] . 力学季刊, 2013, 34(1): 114-124(Hu Xiuyan, Ren Xiaosong, Weng Dagen. Research on calculation of equivalent damping ratio of structure with viscous dampers [J] . Chinese Quarterly of Mechanics, 2013, 34(1): 114-124(in Chinese))
[3] 万金国, 閤东东, 李文峰, 等. 基于SAP2000OAPI计算消能减震结构附加阻尼比 [J] . 建筑结构, 2013, 43(增刊): 850-853(Wan Jinguo, Ge Dongdong, Li Wenfeng. Calculation of additional damping ratio for structures with energy dissipation devices by SAP2000 OAPI [J] . Building Structure, 2013, 43(S1): 850-853(in Chinese))
[4] 何文福, 陈承渊, 刘阳. 黏滞阻尼器结构等效阻尼比计算方法比较研究 [J] . 结构工程师, 2016, 32(1): 10-16(He Wenfu, Chen Chengyuan, Liu Yang. Comparative Study of equivalent damping ratio calculation method for a structure with viscous dampers [J] . Structural Engineers, 2016, 32(1): 10-16(in Chinese))
[5] 陆伟东, 刘伟庆, 汪涛. 消能减震结构附加等效阻尼比计算方法 [J] . 南京工业大学学报(自然科学版), 2009, 31(1): 97-100(Lu Weidong, Liu Weiqing, Wang Tao. Calculation method for additional equivalent damping ratio of energy dissipation structure [J] . Journal of Nanjing University of Technology (Natural Science Edition), 2009, 31(1): 97-100(in Chinese))
[6] 宋力勋. 粘滞阻尼器等效阻尼比的计算公式研究 [J] . 工程抗震与加固改造, 2014, 36(5): 52-56(Song Lixun. Study on the formula of equivalent damping ratio of viscous damper [J] . Earthquake Resistance Engineering and Retrofitting, 2014, 36(5): 52-56(in Chinese))
[7] GB50011-2010 建筑抗震设计规范 [S] . 北京: 中国建筑工业出版社, 2010(GB50011-2010 Code for seismic design of buildings [S] . Beijing: China Architecture & Building Press, 2010)
[8] JGJ297-2013 建筑消能减震技术规程 [S] .北京: 中国建筑工业出版社, 2013(JGJ297-2013 Technical specification for seismic energy dissipation of buildings [S] . Beijing: China Architecture & Building Press, 2013)
[9] Chopra A. Dynamics of Structures-Theory and applications to earthquake engineering [M] . Englewood Cliffs, NJ: Prentice Hall, 1995
[10] 陈清祥, 潘琪. 静力分析方法在消能减震结构分析中的应用 [J] . 防灾减灾工程学报, 2012, 32(4): 436-443(Chen Qingxiang, Pan Qi. Application of new linear analysis method for structures with energy dissipation devices [J] . Journal of Disaster Prevention and Mitigation Engineering, 2012, 32(4): 436-443(in Chinese))
[11] 王奇, 干钢. 基于线性化等效方法的消能减震结构有效附加阻尼比计算 [J] . 建筑结构学报, 2012, 33(11): 46-52(Wang Qi, Gan Gang. Calculation of effective additional damping ratio of energy dissipation structure based on linear equivalent method [J] . Journal of Building Structures, 2012, 33(11): 46-52(in Chinese))
[12] 閤东东, 万金国, 李文峰, 等. 采用黏滞流体消能器加固的框架结构抗震性能分析 [J] . 建筑结构, 2016, 46(5): 18-23(Ge Dongdong, Wan Jinguo, Li Wenfeng, etal. Seismic performance analysis of a frame structure strengthened with viscous fluid damper [J] . Earthquake Resistance Engineering and Retrofitting, 2016, 46(5): 18-23(in Chinese)