软钢阻尼器在中国妇女活动中心酒店结构中优化研究

OPTIMIZATION STUDY ON VIBRATION CONTROL OF STRUCTURE FOR CHINA WOMEN ACTIVITY CENTER’S HOTEL WITH METALLIC DAMPER

基于改进的遗传算法(MGA)和有限元分析软件(SAP2000)的平台开发了一种联合优化算法。首先,将该算法应用到酒店结构的软钢阻尼器的位置优化中,验证了在水平地震荷载下,优化给定数目的软钢阻尼器在酒店结构中的位置优化结果的可靠性和高效性;然后,对布置了不同数量软钢阻尼器的酒店结构分别进行了小震、中震和大震下的动力时程分析,综合考虑结构整体受力和变形、结构抗侧力构件的内力以及结构减震优化的经济性要求,给出了软钢阻尼器数量的最优值。

Based on the modified genetic algorithm and finite element software(SAP2000),A Joint optimization algorithm is put forward to optimize the location of given number metallic damper in the structure for China Women Activity Center Hotel in Beijing,which is one special non-regular out-of-codes high-rise building in high earthquake intensity zone,Firstly,calculation results prove the reliability and the efficiency of the optimization algorithm mentioned above.Secondly,the dynamic time-history analysis of the controlled analytic model with different number of dampers is investigated under the excitation of small,medium and large earthquake.Considering the overall displacement and force,member force and the structure economic benefits,a best number of metallic damper is achieved.