登录
注册
E-alert
登录
注册
E-alert
THE IMPACT ANALYSIS OF VIBRATION-SUPPRESSED EFFECTIVENESS OF CORE-WALL SUSPENSION ISOLATION STRUCTURE CAUSED BY DYNAMIC PARAMETER
-
摘要: 基于理论分析和有限元数值计算,研究了不同的动力参数对核筒悬挂隔震结构减震效果的影响。建立了悬挂结构减震系数的计算方法,分别研究了地震作用下悬挂结构的位移减震系数、绝对加速度减震系数的变化规律,量化了质量比和频率比对悬挂结构减震效果的影响。研究表明:设置有隔震支座的悬挂隔震结构,地震作用下其相对位移和绝对加速度响应的减震耗能明显强于传统的悬挂结构;必须保证质量比和频率比在一定的取值范围内,才能避免悬挂结构产生共振效应,获得比较理想的减震效果。Abstract: Based on the theoretical analysis and the finite element numerical calculation,the impact analysis of vibration-suppressed effectiveness of core-wall suspension isolation structure caused by dynamic parameter was made.A calculation method for the damping coefficient of the core-wall suspended structure was set up,under action of earthquake,the change law of damping coefficient of displacement and absolute acceleration,the vibration-suppressed effectiveness of core-wall suspension isolation structure caused by mass ratio and frequency ratio was also quantified.Research showed that the vibration-suppressed effectiveness of the relative displacement and absolute acceleration of the suspension isolated structure with bearings was stronger than the traditional suspension structure.It must ensure that mass ratio and frequency ratio should be in a certain range,which then could avoid resonance effect of the suspended structure happening and get an ideal vibration-suppressed effectiveness.
-
王前信,卢书辉.悬挂体系的地震力[M].北京:地震出版社,1981:120-130. [2] 王玉朋,魏琏.悬挂质量结构的抗震计算及减震性能分析[M].北京:地震出版社,1991:88-97. [3] 周坚,伍孝波,刘娜.高层建筑悬挂结构体系的非线性动力分析[J].工程力学,2002(S):376-381. [4] 王常峰,李伟.悬挂质量结构减震性能及影响因素分析[J].兰州交通大学学报,2004,23(3):102-105. [5] GOODNO B J, GERE J M. Analysis of Shear Cores Using SuperElements[J]. Proceeding ASCE,1976,102(ST-1):267-283. [6] GOODNO B J, GERE J M. Earthquake Behavior of SuspendedFloor Buildings[J]. Proceeding ASCE,1976,102(ST-5):973-992. [7] 杨允表,宋启根.关于核心单筒式悬挂结构的两个问题[J].工业建筑,1997,27(12):10-13. [8] 杨允表.核心单筒式悬挂结构中四面开洞核心筒体的屈曲荷载与振动频率[J].工业建筑,1998,28(4):20-23. [9] NIKOLAEN N A, BURGAMEN I N. Earthquake Resistance ofStructures with Suspended Ma-sses[A]. Proceedings of 5 thInternational Symptom Earthquake Structural Engineering. Missouri USA: University Missouri,1976:683-698. [10] 杨允表,宋启根.核心单筒式高层悬挂结构中四面开洞核心筒体在水平力作用下的力学分析[J].建筑结构学报,1998,19(3):11-17. [11] 杨允表,宋启根.四面开洞核心单筒体扭转特性的位移分析法[J].工程力学,1999,16(2):37-44. [12] 刘郁馨,吕志涛,袁发顺.多高层混凝土悬挂建筑结构体系及受力性质[J].工程力学,1996,13(S):542-546. [13] 刘郁馨,张旭,吕志涛.悬挂楼层的动力反应分析[J].工程力学,1997,14(S):33-37. [14] 刘郁馨,吕志涛.悬挂建筑框架结构弹性稳定性估算方法[J].工程力学,1997,14(4):29-37. [15] 周坚,刘娜,伍孝波.竖筒悬挂减振体系试验模型的设计与制作[J].北京建筑工程院学报,2002,18(4):48-52. -
点击查看大图
计量
- 文章访问数: 88
- HTML全文浏览量: 9
- PDF下载量: 78
- 被引次数: 0
下载:
