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楼层力作用下的单层框架内力计算一般均需求解联立方程组,目前多采用手算求解。本文介绍一种单层框架在楼层力作用下框架内力的简便算法,采用这种计算方法,可比一般手算节省计算时间。一、单层单跨框架内力计算公式单层单跨框架在楼层力作用下(如图1)的内力分析,由于有侧移存在,故必须采用迭代法进行计算。考虑到这种框架结构的受力性质,柱上弯矩的零点位置是分析的关键,一旦确定了柱上弯矩零点,即可很方便地绘出弯矩图而省去迭代法的繁杂手算步骤。为了得到柱上弯矩零点位置的计算公
The calculation of the internal force of a single-story frame under floor force generally requires the simultaneous solution of simultaneous equations. This paper introduces a simple algorithm for the internal force of a single-story frame under the floor force. Using this calculation method, it can save computing time compared with ordinary hand calculations. First, the single-story single-span frame internal force calculation formula One-story single-span frame in the floor force (Figure 1) analysis of internal forces, due to the existence of lateral shift, it must be calculated using iterative method. Considering the mechanical nature of this frame structure, the zero position of the bending moment on the column is the key to the analysis. Once the zero point of the moment on the column is determined, the bending moment diagram can be drawn easily and the iterative method can be eliminated. Count steps. In order to calculate the zero position of the bending moment on the column