CAJ | 학술논문

介绍设备振动引起某厂房的钢筋混凝土结构强迫振动的测试结果，得到了主要振动设备的扰频及结构强迫振动响应的特点。利用ANSYS 有限元软件对7种不同工况下结构的简谐强迫振动进行了计算机仿真分析，得到各标高层楼盖结构的振动和传递规律。结果表明，强迫共振是引起楼面较大振动的内在原因，各层楼板的振动响应可与标高13?800m的6台振动筛的振动建立明确的相关性，结构存在明显的层间振动传递现象，且向下传递的情况比向上传递严重。基于测试分析结果，提出以增设钢构件的方式修改梁板体系竖向刚度的减振处理对策，通过再次测试对处理后的结构振动响应进行了减振效果评价。
개소설비진동인기모엄방적강근혼응토결구강박진동적측시결과，득도료주요진동설비적우빈급결구강박진동향응적특점。이용ANSYS 유한원연건대7충불동공황하결구적간해강박진동진행료계산궤방진분석，득도각표고층루개결구적진동화전체규률。결과표명，강박공진시인기루면교대진동적내재원인，각층루판적진동향응가여표고13?800m적6태진동사적진동건립명학적상관성，결구존재명현적층간진동전체현상，차향하전체적정황비향상전체엄중。기우측시분석결과，제출이증설강구건적방식수개량판체계수향강도적감진처리대책，통과재차측시대처리후적결구진동향응진행료감진효과평개。
The forced vibration behavior of reinforced concrete structure induced by apparatus vibration was tested. The disturbing force and frequency of vibrating equipment and response of structure vibration were obtained. Computer simulations of simple harmonic vibration corresponding of seven vibration conditions with ANSYS software are carried out. Through comparison and analysis, the vibration transmitting order line and characters at each floor and in the vertical direction have been gotten. The test and analysis results are as follow:the main cause of factory floor of big vibration is forced resonance;the explicit relevance between forced vibration response and six vibration sieve on elevation 13?800 meter were founded. The structure vibration has obvious interlayer transfer phenomenon. Based on test and analysis results,the vibration reduction treatment scheme was proposed,after damping reinforcement, the damping effect evaluation was carried out.