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利用通用有限元分析软件ANSYS分别对型钢混凝土柱框支满跨不开洞剪力墙结构和钢筋混凝土柱框支满跨不开洞剪力墙结构进行竖向荷载以及竖向和水平荷载共同作用下的静力分析;对不同含钢量和配箍率的型钢混凝土柱进行分析。研究结果表明:在框支柱中内设型钢可以减小整个结构特别是框支梁在竖向荷载作用下的竖向位移,框支梁底部跨中部位表现最为明显;在框支柱中内设型钢降低了框支梁中和轴的位置,提高了框支梁的抗裂能力。在竖向和水平荷载共同作用下,框支梁梁顶与剪力墙相交部分水平应力较大,远离水平力施加位置的柱底部竖向应力较大,梁柱节点内侧剪应力较大;型钢混凝土柱最大水平应力出现在远离水平力施加位置的柱顶以下大概三分之一柱高的位置;型钢混凝土柱最大竖向应力出现在远离水平力的外侧柱底处;使用型钢混凝土框支柱可以使结构的力-位移曲线存在可观的平台,提高了结构的延性。在一定范围内,型钢混凝土柱的延性随含钢量的增加、配箍率的增大而增大,但含钢量并不是越大越好。
The common finite element analysis software ANSYS was used to calculate the vertical load and the vertical load and the horizontal load respectively for the full-span SRC columns with full-span shear walls without openings and with RC columns filled with un- Under static analysis; analysis of steel reinforced concrete columns with different steel content and stirrup ratio. The results show that the profiled steel can reduce the vertical displacement of the whole structure, especially the frame beam under the vertical load, the most obvious at the middle of the bottom of the frame beam; The position of the neutral axis of the frame support beam is reduced, and the crack resistance of the frame support beam is improved. Under the joint action of vertical and horizontal loads, the horizontal stress of the intersection of beam-girder and shear wall is larger, and the vertical stress at the bottom of column is larger and the shear stress inside the beam-column joint is larger. The maximum horizontal stress of concrete column appears at a position about one third of the column height below the top of the column away from the horizontal force application. The maximum vertical stress of the SRC column appears at the outer column bottom away from horizontal force. So that the structure of the force - displacement curve there is a considerable platform to improve the ductility of the structure. Within a certain range, the ductility of SRC columns increases with the increase of steel content and the increase of the stirrup rate, but the bigger the steel content is, the bigger the better.