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选取在抗震设防烈度为6度、基本风压为0.45kN·m-2地区的一个钢筋混凝土框架结构,基于ANSYS有限元平台,分别对其施加风载荷和地震作用.风载荷采用线性滤波法进行模拟,地震波选取EI-Centro波后进行调幅得到,选取结构基底剪力与弯矩、顶层位移、层间位移和顶层加速度等进行对比分析.结果表明:在上述地区按照抗风设计的高层钢筋混凝土框架结构可以抵御该地区的多遇地震,而框架-剪力墙结构、剪力墙结构由地震控制的可能性很大;对于结构舒适度问题,根据每个结构形式的适用高度,可以认为框架结构应重点考虑地震作用,而剪力墙结构、筒体结构、框筒结构等应重点考虑风载荷影响.
A reinforced concrete frame structure with seismic fortification intensity of 6 degrees and basic wind pressure of 0.45 kN · m-2 was selected, and based on the ANSYS finite element platform, wind load and earthquake action were respectively applied to the wind load. The wind load was filtered by linear filter After the selection of EI-Centro wave and amplitude-modulation, the shear and bending moment, top displacement, interlayer displacement and top acceleration of the structural foundation were compared and analyzed.The results show that in accordance with the wind-resistant design of high-rise reinforced concrete The frame structure can resist the frequent earthquakes in the area. However, the frame-shear wall structure and the shear wall structure are highly likely to be controlled by earthquakes. For the structural comfort problem, according to the applicable height of each structure form, the frame The structure should focus on the earthquake effect, while the shear wall structure, cylinder structure, frame tube structure should focus on the impact of wind load.