计算包括梯形钢桁架与柱刚接的超静定刚架或计算简支梯形钢桁架的中点挠度时,可利用本文的刚度或惯性矩折减系数,系数已按力矩分配法和矩阵位移法的要求列出。传递系数和固定端弯矩也需乘相应的折减系数。 When calculating the mid-point deflection of a statically indeterminate rigid frame with a trapezoidal steel truss and column rigidly connected or a simple trapezoidal steel truss, use the stiffness or moment of inertia reduction factor in this paper. The coefficients have been assigned by the torque distribution method and the matrix displacement method. The requirements are listed. The transfer coefficient and the fixed-end bending moment also need to be multiplied by the corresponding reduction factor.