CAJ | 학술논문

高层工业厂房混合框架结构在正常生产过程中存在大幅度振动,不能满足工作人员的舒适度要求.首先,利用ANSYS软件建立高层厂房三维有限元模型,计算出结构前几阶的固有频率和振型.其次,将结构附属设备系统作为TMD附加质量,合理设计出TMD参数.在简谐激励下,分别对施加和未施加TMD两种情况下的结构进行了动力时程分析.结果表明,施加TMD后,其结构的层间位移,加速度均得到了较好控制,其控制率在48%以上,说明此设计方案可行,对相关结构的振动控制具有一定的指导意义.
고층공업엄방혼합광가결구재정상생산과정중존재대폭도진동,불능만족공작인원적서괄도요구.수선,이용ANSYS연건건립고층엄방삼유유한원모형,계산출결구전궤계적고유빈솔화진형.기차,장결구부속설비계통작위TMD부가질량,합리설계출TMD삼수.재간해격려하,분별대시가화미시가TMD량충정황하적결구진행료동력시정분석.결과표명,시가TMD후,기결구적층간위이,가속도균득도료교호공제,기공제솔재48%이상,설명차설계방안가행,대상관결구적진동공제구유일정적지도의의.
The framework of a mixture of high-level industrial plant exists a large amplitude vibration in its normal productive process,and the staff＇s requirements of comfort cannot be met.Firstly,a finite element model of the plant is established and then several natural frequencies and modes of the structure are calculated with ANSYS.Secondly,the system ancillary equipment is taken as an additional mass of the TMD,and the parameters of the TMD are designed reasonably.The dynamic time-history of the structure with TMD and without TMD are analyzed under a harmonic excitation.The results show that the story drifts and accelerations of the structure with TMD have been well controlled and the control rate of which is 48% or more.Therefore,this design is feasible and provides a referential guidance for the vibration control of correlation structures.