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- 用fortran编写，用于计算截面面积、惯性矩，在平常的工程数据处理时，会经常用到。
薄壁断面的几何特征
- 计算桥梁箱形截面的特征，包括面积，形心距，形心轴到底面的距离，对X轴的惯性矩 ，对Y轴的惯性矩，自由扭转惯性矩，约束扭转惯性矩-calculating box-shaped bridge characteristics, including size, shape from the heart, heart-shaped shaft from the surface in the end, the moment of inertia o
截面参数计算SecProCalReleas
从INPUT.TXT中读入节点坐标
输入坐标格式：
截面节点数N
节点1到N的X坐标
节点1到N的Y坐标截面的形心位置(x0,y0)，面积F，惯性矩IX0,IY0保存在OUT.TXT中
薄壁断面的几何特征
- 计算桥梁箱形截面的特征，包括面积，形心距，形心轴到底面的距离，对X轴的惯性矩 ，对Y轴的惯性矩，自由扭转惯性矩，约束扭转惯性矩-calculating box-shaped bridge characteristics, including size, shape from the heart, heart-shaped shaft from the surface in the end, the moment of inertia o
section
- 用fortran编写，用于计算截面面积、惯性矩，在平常的工程数据处理时，会经常用到。-Prepared using fortran, used to calculate the sectional area, moment of inertia, in the normal data-processing projects will be frequently used.
Crackstiffness
- 中性轴法，计算转子轴上裂纹梁单元的惯性矩(Calculate the moments of inertia of the cross section of a cracked beam element based on the neutral axis method)
Beam2D2Node
- 该函数计算单元的刚度矩阵，输入弹性模量E、横截面的惯性矩I和梁单元的长度L，输出单元的刚度矩阵(Computational unit stiffness matrix)