gongqiaojisuan

代码说明：

  此代码是用fortern编写的。是拱桥的计算代码，此代码是计算拱桥的完整代码。适用于桥梁研究生对拱桥进行分析计算。(This code is used fortern prepared. Is the calculation of arch code, this code is the calculation of a complete arch code. Apply to graduate on the arch bridge analysis calculation.)