摘要:
利用MIDAS结构计算软件，计算了跨径108 m的原油码头钢拱引桥在矢高12 m、15 m、18 m、21 m、24 m、27 m下的吊索、拱肋、纵梁、横梁等主要受力构件的轴向拉压应力、竖向剪应力及弯矩变化规律，并通过分析不同矢高下各应力变化规律，提出钢拱引桥矢跨比的设计范围及引桥设计时应注意的事项。
By using the MIDAS structure calculating software, the axial forces, shear force, bending moments of the cross beam, longitudinal beam, arch rib, suspender cable are calculated, which are the main stressed members of the 108-m span length steel arch approach bridge in crude oil terminal when the vector height is 12 m,15 m,18 m,21 m,24 m,27 m. By analyzing the variation of the stresses, the range of the rise-span ratio and points for attention in the design of steel arch approach bridge are put forward.