爆炸荷载下建筑结构的振动控制及分析  

Vibration Control and Analysis of Structure under Explosion Load

作　　者：董彬 李志军[1] 魏同 DONG Bin;LI Zhijun;WEI Tong(School of Civil & Architecture Engineering,Xi’an Technological University,Xi’an 710021,China)

机构地区：[1]西安工业大学建筑工程学院,西安710021

出　　处：《西安工业大学学报》2020年第4期404-409,共6页Journal of Xi’an Technological University

基　　金：国家自然科学基金项目(51678480,51808423);陕西省重点研发计划项目(2019GY-079);陕西省教育厅专项科研计划项目(11JK0543);西安工业大学校长基金(XAGDXJJ0919)。

摘　　要：为了提高爆炸荷载作用下建筑结构的安全性,采用调谐液柱阻尼器(TLCD)作为被动和半主动控制装置,分析了TLCD-结构的抗爆性能。基于TLCD的力学性能,建立了爆炸荷载作用下TLCD-结构的动力学方程;提出了可行的半主动控制策略;对12层框架结构在爆炸荷载作用下的动力响应进行仿真分析。结果表明:TLCD装置能够有效地控制结构在爆炸荷载作用下的动力响应;半主动控制效果明显优于被动控制效果。In order to improve the safety of building structure subjected to the explosive load,tuned liquid column damper(TLCD)is used as a passive or semi-active control device for reducing the vibration response of the building structure in this paper.Based on the mechanical mechanism of the TLCD,the dynamic equation of motion of the structural system with passive and semi-active TLCDs are built and some parameters of the structure are determined correspondingly.Moreover,a feasible semi-active control strategy is presented for the building structure with TLCD.Finally,a 12-story frame installed with TLCD on the top story is used to demonstrate the effectiveness of the proposed method.Simulation results show that TLCD device can effectively control the dynamic response of the structure under explosive load;the control performance of the proposed semi-active control algorithm is better than that of the passive control.

关 键 词：爆炸荷载 振动控制 调谐液柱阻尼器(TLCD) 半主动控制 

分 类 号：O383[理学—流体力学]