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根据工业建筑的特点,对金属和轻质混凝土的装配式围护结构抗震计算进行对比分析。结合GB 50011—2010《建筑抗震设计规范》,以及现行有关幕墙和围护系统的标准,对围护结构抗震设计的位置系数、状态系数和动力放大系数取值进行深入探讨,对工业建筑围护结构的地震作用组合形式及效应与风荷载的组合效应进行了比较分析。建议对动力放大系数按照建筑抗震设防类别调整为5.0(乙类)和3.6(丙类),在金属围护墙和轻质混凝土墙板的承载力设计时,一般可仅考虑按非抗震设计组合。
According to the characteristics of industrial buildings, the comparative analysis on the seismic calculation of fabricated enveloping structures of metal and light concrete is carried out. Combined with GB50011-2010 Code for Design of Seismic Design of Buildings and the existing standards of curtain wall and enclosure system, the value of position coefficient, state coefficient and dynamic amplification factor of seismic design of envelope are discussed in depth. The combined effect of seismic action combination and effect of structure with wind load is compared and analyzed. It is suggested that the power amplification factor be adjusted to 5.0 (Group B) and 3.6 (Group C) according to the category of seismic fortification of buildings. In the design of bearing capacity of metal containment walls and light weight concrete wall panels, generally, only non-aseismic design combinations .