三铰拱的反力与荷载及三个铰的位置有关，而与各铰间的拱轴线形状 <span times="" new="" roman";="" mso-hansi-font-family:="" calibri;="" mso-bidi-font-family:="" "times="" mso-font-kerning:="" 1.0pt;="" mso-ansi-language:="" en-us;="" mso-fareast-language:="" zh-cn;="" mso-bidi-language:="" ar-sa"="" style="color: rgb(0, 0, 0); font-family: 宋体;">无关
×
√

---