CAJ | 학술논문

应用实验的方法研究了阻尼器对框架结构的抗震减振效果，采用试验模态分析的方法测试楼房框架结构相似模型的固有特性。分析模型在不同楼层施加弹簧阻尼器与未施加弹簧阻尼器的固有特性的变化情况；并利用水平振动台对楼房框架结构在施加弹簧阻尼器前后不同工况进行地震响应试验研究。结果表明，施加弹簧阻尼器后楼房框架结构的固有频率和振型变化很小；但会增加其模态阻尼比，从而降低了结构对地震激励的响应，达到结构抗震减振的目的，在较低层施加弹簧阻尼器比在较高层施加效果更明显。
응용실험적방법연구료조니기대광가결구적항진감진효과，채용시험모태분석적방법측시루방광가결구상사모형적고유특성。분석모형재불동루층시가탄황조니기여미시가탄황조니기적고유특성적변화정황；병이용수평진동태대루방광가결구재시가탄황조니기전후불동공황진행지진향응시험연구。결과표명，시가탄황조니기후루방광가결구적고유빈솔화진형변화흔소；단회증가기모태조니비，종이강저료결구대지진격려적향응，체도결구항진감진적목적，재교저층시가탄황조니기비재교고층시가효과경명현。
Experiment method was applied to study the seismic vibrational control effect of applying damper on frame, use modal analysis to test the inherent characteristic of the similar building model, analyce the different situ-ation of the model natural feathers in different layer when it’ s original or after applying spring dampers, and carry out an experiment about whether the spring damper is applied on frame or not in different conditions with the help of the vibrational system, in order to make research on earthquake excitation.The results show, after applying the spring dampers, the natural frequencies and vibrational modes have little change.But the modal damping ratio of building is increased, so that the reflection of the building to earthquake excitation is decreased, and the goal of seismic vibrational control is achieved.Besides, spring dampers have better effect when they’ re applied on the higher layers than the lawer ones.