人行天桥的MTMD减振控制研究
|
摘要
本文采用MTMD对某大跨人行天桥进行了消能减振分析与设计。分析表明,天桥在人行荷载作用下有明显的共振响应,安装MTMD后,减振效果明显,在共振工况下减振率达66%,减少了天桥的共振响应,达到了人体舒适度指标。采用MTMD消能减震技术减少天桥振动反应是一种经济、实用又不影响美观的方法。
In this paper,the vibration energy dissipation design is performed for a pedestrian bridge with Multiple Tuned Mass Damper(MTMD).The analysis results proved that the bridge has obvious resonance response under pedestrian loads.Installation of MTMD effectively reduces the vibration response with 66% reduction under the circumstance of resonance.Resonance response is avoided and the target of human comfort is reached after installating the MTMD.The MTMD energy dissipation technology is an economical,practical way to reduce the vibration response of pedestrian bridge without affecting the appearance.
In this paper,the vibration energy dissipation design is performed for a pedestrian bridge with Multiple Tuned Mass Damper(MTMD).The analysis results proved that the bridge has obvious resonance response under pedestrian loads.Installation of MTMD effectively reduces the vibration response with 66% reduction under the circumstance of resonance.Resonance response is avoided and the target of human comfort is reached after installating the MTMD.The MTMD energy dissipation technology is an economical,practical way to reduce the vibration response of pedestrian bridge without affecting the appearance.
引文
[1]叶正强,李爱群,丁幼亮等.某大跨人行天桥的消能减振设计(一)[J].特种结构,2003,20(1):68-70
[2]丁幼亮,李爱群,叶正强等.某大跨人行天桥的消能减振设计(二)[J].特种结构,2003,20(1):71-73
[3]J.G.S.da silva a,etc.An evaluation of the dynamical performance of composite slabs.Computers and Structures.2003(81):1905-1913
[4]Vickery.B.J and Davenport.A.G.Aninvestigationof the behaviourin wind of proposed Centrepoint Tower,in syndey,Ausralia.Engineering Science Report BLW-1-70,University of Wesern Ontario,Canada,1971
[5]李爱群.工程结构减振控制[M].机械工业出版社.2007:239-241
[6]张志强,李爱群,徐幼麟等.合肥电视台TMD的地震响应控制研究[J].工程抗震与加固改造,2007,29(5):12-16
[7]张志强.合肥电视塔风振及地震响应的振动控制研究[D].南京:东南大学,2003
[8]黄梦雅,张志强.大跨楼盖TMD减振系统的刚度优化问题研究[J].福建建筑,2008(7):43-44
[9]刘海燕,陈开利.在既有人行天桥栏杆上设置薄型TMD进行减振[J].世界桥梁,2004,1:69-73
[10]霍林生,李宏男.大跨人行过街天桥利用MTMD减振控制的理论分析[J].防灾减灾工程学报,2008(3):298-302
[11]廖顺痒.人行天桥的设计与施工[M].上海:同济大学出版社,1995:28-30
[12]中华人民共和国行业标准.城市人行天桥与人行地道技术规范.CJJ69-95
[13]孙利民,闫兴非.人行桥人行激励振动及设计方法[J].同济大学学报(自然科学版),2004,32(8):996-999
[14]British Standard5400,British Standards Institution(1978).Steel,concrete and composite bridge:Specificationfor load[S]
[15]法永生,李东,孙翠华.人行桥随机人行荷载下的振动分析及舒适度评价的新方法[J].振动与冲击,2008,27(1):119-123
[16]H.Grundmann,H.Kreuzinger,M.Schneider,Dynamic calculations of footbridges,Bauingenieur,1993,68:215-225
[2]丁幼亮,李爱群,叶正强等.某大跨人行天桥的消能减振设计(二)[J].特种结构,2003,20(1):71-73
[3]J.G.S.da silva a,etc.An evaluation of the dynamical performance of composite slabs.Computers and Structures.2003(81):1905-1913
[4]Vickery.B.J and Davenport.A.G.Aninvestigationof the behaviourin wind of proposed Centrepoint Tower,in syndey,Ausralia.Engineering Science Report BLW-1-70,University of Wesern Ontario,Canada,1971
[5]李爱群.工程结构减振控制[M].机械工业出版社.2007:239-241
[6]张志强,李爱群,徐幼麟等.合肥电视台TMD的地震响应控制研究[J].工程抗震与加固改造,2007,29(5):12-16
[7]张志强.合肥电视塔风振及地震响应的振动控制研究[D].南京:东南大学,2003
[8]黄梦雅,张志强.大跨楼盖TMD减振系统的刚度优化问题研究[J].福建建筑,2008(7):43-44
[9]刘海燕,陈开利.在既有人行天桥栏杆上设置薄型TMD进行减振[J].世界桥梁,2004,1:69-73
[10]霍林生,李宏男.大跨人行过街天桥利用MTMD减振控制的理论分析[J].防灾减灾工程学报,2008(3):298-302
[11]廖顺痒.人行天桥的设计与施工[M].上海:同济大学出版社,1995:28-30
[12]中华人民共和国行业标准.城市人行天桥与人行地道技术规范.CJJ69-95
[13]孙利民,闫兴非.人行桥人行激励振动及设计方法[J].同济大学学报(自然科学版),2004,32(8):996-999
[14]British Standard5400,British Standards Institution(1978).Steel,concrete and composite bridge:Specificationfor load[S]
[15]法永生,李东,孙翠华.人行桥随机人行荷载下的振动分析及舒适度评价的新方法[J].振动与冲击,2008,27(1):119-123
[16]H.Grundmann,H.Kreuzinger,M.Schneider,Dynamic calculations of footbridges,Bauingenieur,1993,68:215-225
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心