型钢混凝土框架-核心筒混合结构具有良好的抗震性能。为了对其协同受力性能进一步的研究,通过选取结构刚度特征值λ和核心筒高宽比H/b为参数,建立型钢混凝土框架-钢筋混凝土筒体混合结构非线性参数化模型。采用静力非线性分析方法,对高烈度区SRC框架-RC筒体混合结构协同受力性能进行研究,主要包括混合结构剪力和倾覆力矩分配与重分配规律等,并对框架剪力分担率等设计控制指标提出建议。
SRC frame-RC core wall hybrid structure exhibits good aseismic performance.A parametric model is established for hybrid structures with various stiffness characteristic value λand core tube aspect ratio H /b selected as parameters.Cooperative bearing performance of hybrid structure in high seismic intensity region is stuided by nonlinear static analysis method,including distribution and redistribution rules of horizontal shear and overturning moment etc..Based on the aforementioned research,some suggestions on design controlling index of shear force sharing rate of outer frame are proposed.