MTMD-耗能框架填充墙减震数值分析

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振动与冲击 ›› 2012, Vol. 31 ›› Issue (4) : 86-91.

论文

MTMD-耗能框架填充墙减震数值分析

黄炜1,，王猛1，卢俊龙2，何明胜3，张程华1

作者信息 +

Numerical analysis on shock absortion and damping effect of frame structures-MTMD

Huang Wei1, Wang Meng1, Lu Jun-long2, He Ming-sheng3, Zhang Cheng-hua1

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文章历史 +

摘要

在多功能围护墙减震结构体系中，围护墙作为一个质量调谐减震阻尼器（TMD）中的质量块，可以克服传统框架结构在动力荷载作用下不能持久耗能的缺点。为了研究新型围护墙减震结构的减震性能，使MTMD减震技术更好的应用于结构设计，结合MTMD体系的减震原理、参数优化设计方法，对MTMD-钢框架结构系统的减震装置参数进行分析；应用SAP2000数值分析软件对结构的振动特性进行计算；采用时程分析法分别对普通钢框架、MTMD减震钢框架的地震反应进行对比分析。计算结果表明：基于多功能围护墙减震结构体系的MTMD钢框架具有显著的减震效果。模态分析得出各阶振动周期相应增大2-3倍；从时程分析结果来看，能够有效地减小结构地震反应峰值，减震效果一般在5%-40%之间。为MTMD在结构抗震方面的设计提供理论依据

Abstract

The enclosure wall vibration-absorption structure is a new frame structure with MTMD system, the enclosure walls, as a mass damper in TMD, can overcome the shortcoming that the frame structures can’t absorb energy continually. In order to study the vibration-absorption effect of the MTMD in enclosure wall structures and apply the MTMD technology in structure design conveniently, damping parameters of vibration-absorption device in MTMD-Steel Frame structure are studied based on the vibration-absorption principle of MTMD systems and Parameter Optimal Design Method. The vibration performance of the structure is calculated by using the finite element software SAP2000. By the time-history analysis, a comparison of the acceleration and displacement between the traditional frame-steel model and MTMD-steel frame model is carried out. The results indicate that: MTMD-steel frame based on the enclosure wall vibration-absorption structure has a significant seismic reduction effect. The periods of the MTMD model are 2 or 2 times than those of the general frames based on the modal analysis. And it could effectively reduce the structural response; the damping rate is generally between 5% -40% based on the Time-history analysis,. The analysis could provide the theory basis and reference for construction design

导出引用

黄炜;王猛;卢俊龙;何明胜;张程华. MTMD-耗能框架填充墙减震数值分析[J]. 振动与冲击, 2012, 31(4): 86-91

Huang Wei;Wang Meng;Lu Jun-long;He Ming-sheng;Zhang Cheng-hua . Numerical analysis on shock absortion and damping effect of frame structures-MTMD[J]. Journal of Vibration and Shock, 2012, 31(4): 86-91