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巨子型结构体系(Mega-sub Controlled Structure System,即MSCSS)作为一种新型超高层建筑结构体系,由于其特殊的构造特性使得结构体系的阻尼矩阵呈现出非经典阻尼的分布特征。为准确高效地研究MSCSS的控制特性,避免强迫解耦和时程分析法所带来的误差与不足,文中基于复模态理论对非经典阻尼系统进行解耦,验证了基于复模态的CCQC法(Complex Complete Quadratic Combination)对MSCSS的适用性,采用CCQC法对MSCSS进行抗震分析。结果显示出MSCSS优于MFS(Mega Frame Structure)的抗震特性,并且MSCSS的控制特性主要体现在含有调频子结构的巨层。
Mega-sub Controlled Structure System (MSCSS) is a new type of super high-rise building structural system. Due to its special structural characteristics, the damping matrix of structural system shows non-classical damping distribution. In order to study the control characteristics of MSCSS accurately and efficiently and avoid the errors and deficiencies brought by forced decoupling and time-history analysis, the non-classical damping system is decoupled based on the complex mode theory. The results show that the CCQC (Complex Complete Quadratic Combination) MSCSS applicability, the use of CCQC method of MSCSS seismic analysis. The results show that the MSCSS is superior to the MFS (Mega Frame Structure) seismic characteristics, and the control characteristics of MSCSS are mainly reflected in the giant layer containing the FM sub-structure.