CAJ | 학술논문

高楼顶部设桅杆是一种常见的结构形式以满足建筑功能的要求。为分析在风荷载激励下桅杆对主体结构的影响，以及高耗能粘弹性阻尼器对桅杆和主体结构的振动控制效果，根据Davenport风速谱理论，采用AR线性滤波法模拟出空间、时间相关的脉动风速时程，并采用ETABS有限元软件进行风荷载激励下的时程分析。结果表明，高耗能粘弹性阻尼器的加入使主体结构的桅杆放置层桅杆周围部分杆件的内力有了较大幅度的减小，桅杆的动力响应得到了有效控制。
고루정부설외간시일충상견적결구형식이만족건축공능적요구。위분석재풍하재격려하외간대주체결구적영향，이급고모능점탄성조니기대외간화주체결구적진동공제효과，근거Davenport풍속보이론，채용AR선성려파법모의출공간、시간상관적맥동풍속시정，병채용ETABS유한원연건진행풍하재격려하적시정분석。결과표명，고모능점탄성조니기적가입사주체결구적외간방치층외간주위부분간건적내력유료교대폭도적감소，외간적동력향응득도료유효공제。
It's a common form of structures to set up a mast on the top of a building to meet the architectural functional requirements. In order to analyze the influence of the mast on main structures, and the vibration control effect of high energy viscoelastic dampers on mast and main structures, a time history simulation of space-related and time-related fluctuating wind was conducted by using the AR linear filtering method according to the Davenport wind spectrum theory. In addition, elastic time history analysis was also performed via ETABS finite element software subjected to wind load excitation. The results indicate that the high-energy-dissipation viscoelastic dampers added to the structure greatly reduce the inner force of the bars around the mast on the layer where the mast places on, and the dynamic response of the mast is effectively controlled.