Research on Anti-buckling Behavior of Concrete Shear Wall Structure-frame Structure
In order to improve the seismic performance of the shear wall-frame structure,anti-buckling bracing was designed on the basis of the shear wall-frame structure,and the seismic performance of the improved structure was tested to analyze its stiffness and dissipation perform-ance.The results show that the load-displacement curve of shear wall-frame structure presents a closed loop with the increase of horizontal dis-placement and unloading process.With the increase of the loading displacement level,the closed hysteresis curve loop appears to backflow and its area decreases continuously.The skeleton curve increases approximately linearly at the beginning,slowly increases to the ultimate load at the later stage,and finally the curve begins to decline.The stiffness properties of the shear wall-frame structure in both positive and negative directions are close,and the difference is small.The shear wall-frame structure with anti-buckling supports has a strong bearing capacity.
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