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本文论述了9个模拟悬壁柱的试验,以便研究结构体系中柱的变性性能,其目的是通过试验和理论分析确定承受较大轴向荷载和最小配箍柱的轴力—力矩—曲率(P-M—Φ)关系.使用控制横向变形的加载方法,可以在柱达到最大抵抗力矩后仍维持其稳定性,并测量出P-M—Φ关系的下降段.这种防止失稳的支撑作用类似于无支撑框架中较强构件产生的横向抵抗作用.测出的P-M—Φ关系曲线不会显示脆性,而几乎是一个平缓
This paper discusses nine simulated suspension columns to investigate the degeneration performance of the columns in the structural system. The purpose is to determine the axial force—torque—curvature subjected to large axial loads and the minimum binding column through experimental and theoretical analysis. PM-Φ relationship. Using the lateral deformation loading method, it is possible to maintain the stability of the column after it reaches the maximum resistance moment, and to measure the falling part of the PM-Φ relationship. This kind of support to prevent instability is similar to the The lateral resistance effect of the stronger components in the support frame. The measured PM-Φ curve does not show brittleness, but is almost flat.