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本文将无剪力分配法原理推广到多跨多层刚架,将转角弯矩分配与侧移剪力分配统一起来,仍采用转角分配的形式,用迭代法进行计算。这样,可使物理概念明确,计算格式简洁;并可使柱的线刚度大于梁的线刚度的多层刚架加速收敛。此法可作为多跨多层刚架计算的基本方法之一。一、基本原理和公式推导 1.无剪力分配的楼层侧移弯矩基本公式有侧移刚架计算的基本原理是:轮流应用转角弯矩分配(结点弯矩平衡)和侧移弯矩分
In this paper, the principle of no shear distribution is extended to multi-span multi-story rigid frame, and the distribution of corner moment distribution and lateral displacement shear force are unified, and the distribution of corners is still used, and iterative calculation is used. In this way, the physical concept can be made clear and the calculation format can be concise; and the multi-layered rigid frame of the column whose linear stiffness is greater than that of the beam can accelerate convergence. This method can be used as one of the basic methods for calculating multi-span multi-story rigid frames. 1. Basic Principles and Formulas Derivation 1. Basic Formulas for Floor-shifting Moments Without Shear Distribution The basic principles for the calculation of side-shifting rigid frames are: Rotational application of corner bending moment distribution (nodal bending moment balance) and lateral bending moment Minute