CAJ | 학술논문

本文利用大型结构分析软件ETABS设计了4种包含和不包含楼梯的钢筋混凝土框架计算模型,分别采用底部剪力法、反应谱法和时程分析法对各模型进行了弹性阶段地震反应特性对比计算分析.结果显示:楼梯参与结构整体计算后,结构出现抗侧刚度明显增加、结构扭转振动显著、梯间框架柱剪力突变等现象;建议结构设计时采用包含楼梯的层间结构计算模型(M-4),使用振型分解反应谱法进行结构抗震分析计算.
본문이용대형결구분석연건ETABS설계료4충포함화불포함루제적강근혼응토광가계산모형,분별채용저부전역법、반응보법화시정분석법대각모형진행료탄성계단지진반응특성대비계산분석.결과현시:루제삼여결구정체계산후,결구출현항측강도명현증가、결구뉴전진동현저、제간광가주전력돌변등현상;건의결구설계시채용포함루제적층간결구계산모형(M-4),사용진형분해반응보법진행결구항진분석계산.
Four computer models of conerete frame with staircase were made and the seismic-performance of the models in elastic-phase was calcaulated by adopting base shear method, spectrum analysis and time history analysis based on ETABS. The results show that including staircase into models will change the seismic performance of frame structure significantly. The paper proposes that the computer model-4 and the response spectrum analysis should be used firstly in the seismic design of conerete frame with staircase.