悬链线无铰拱拱轴系数m值的确定

The confirm of arch-axis coefficient m's value of catenary reamless arch

以马鞍山大桥为例,运用计算机桥梁计算程序,按平面有限元分析,选取了无数组m值进行了各截面应力值的比较,得出一些有意义的结论,最终使各截面受力均匀,有利于截面尺寸及受力钢筋的控制,使其达到最为经济的状态。

Taking Ma＇anshan bridge as an example, using bridge computation procedure and according to plane finite dement analysis, the author compares each value of section stress by selecting countless groups of m value, draws some meaningful conclusions, and makes each section have even stress to control section size and stressed reinforcing steel bar, in order to achieve its furthest economic state.