CAJ | 학술논문

从隔震角度出发，探讨了隔震措施能否提高某一典型的通信机房走线架结构的抗震性能，在其设备楼板与承重支架间设置铅芯橡胶支座进行隔震处理，利用ANSYS有限元程序对其进行动力时程分析。结果表明：结构第1阶振型的自振周期由2．33s延长至3．59s，有效避开了场地卓越周期；走线架上部在地震作用下的相对变形大幅降低（降幅为58．5％）；结构顶部加速度响应及基底地震剪力都有一定程度的减弱（降幅分别为10．4％，36．4％）；对走线架结构的隔震处理能够有效提高其抗震性能，隔震措施切实可行。
종격진각도출발，탐토료격진조시능부제고모일전형적통신궤방주선가결구적항진성능，재기설비루판여승중지가간설치연심상효지좌진행격진처리，이용ANSYS유한원정서대기진행동력시정분석。결과표명：결구제1계진형적자진주기유2．33s연장지3．59s，유효피개료장지탁월주기；주선가상부재지진작용하적상대변형대폭강저（강폭위58．5％）；결구정부가속도향응급기저지진전력도유일정정도적감약（강폭분별위10．4％，36．4％）；대주선가결구적격진처리능구유효제고기항진성능，격진조시절실가행。
Basing on the seismic isolation ,seismic isolation technology was taken into account to improve the seismic performance of the cable tray structure for a typical communication room . Taking advantage of seismic isolation technology by setting rubber seismic isolation bears between equipment floor and bearing member .Based on ANSYS finite element software , the dynamic time history analysis was carried out .The results show that the self-vibration period of the first vibration mode is from 2 .33 s to 3 .59 s ,w hich avoids the site predominant period effectively .The relative deformation of cable tray structures on top decreases obviously (the reduction of 58 .5% ) .T he acceleration responses at the top of cable tray and the base shear get a certain degree of decrease(the reduction of 10 .4% and 36 .4% ,respectively) .By adopting seismic isolation technology ,the seismic performance of the construction of cable tray structures can be improved and certain effects have achieved through seismic isolation .