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双向偏心受压型钢混凝土柱是地震区型钢混凝土结构的重要构件,其受力情况和破坏机理较为复杂。采用大型通用有限元软件ANSYS对双向偏心受压SRC柱正截面承载力进行了模拟分析。通过对25根SRC柱双向偏心受压试件的模拟,较真实地模拟SRC柱在偏心荷载作用下的荷载位移过程,计算结果与试验符合较好,从而验证了有限元程序模拟试验的准确度与可行性。在此基础上,又对试验数据较少的配十字型钢SRC柱双向偏心受压构件进行了全过程模拟,从理论计算角度做了非线性分析,计算结果与配工型SRC柱较为一致,为进一步了解其力学性能和SRC柱偏心受压构件的设计提供了理论依据。
Bi-eccentrically-compressed steel reinforced concrete columns are an important component of SRC in earthquake area, and their stress conditions and failure mechanisms are complicated. A large common finite element software ANSYS was used to simulate the normal cross-section bearing capacity of SRC column. Through the simulation of twenty-two SRC columns under bi-axial eccentric compression, the load-displacement process of SRC columns under eccentric load is simulated more accurately. The calculated results are in good agreement with the experimental results, which verifies the accuracy of finite element simulation With feasibility. On the basis of this, the whole process simulation of the bi-directional eccentric compression members with SRC columns of cross-shaped steel with less experimental data was carried out. The nonlinear analysis was made from the theoretical calculation point. The calculated results are in good agreement with those of the SRC columns Further understanding of its mechanical properties and SRC post eccentric compression member design provides a theoretical basis.