Allowable strength debases between 40-50% off. (2) Tightness of column and beam affects the rotational stiffness and initial departure with different samples.

• (2)不同试体间，梁柱之密合度高低将明显影响旋转刚度以及初始滑移，但不影响最大荷载，且弹性阶段之应力与位移之比值，趋向一定值。