运用于弧形闸门的鱼腹式桁架的合理弦杆线形研究

STUDY ON THE REASONABLE CHORD LINETYPE OF THE FISH-BELLIED TRUSS APPLIED TO RADIAL GATE

为提高水工闸门领域的鱼腹式桁架的力学性能,文中对运用于直升式弧形闸门的鱼腹式桁架的合理弦杆线形进行理论推导,得到上下弦杆在轴心拉压状态下的轴线方程。通过将有限元软件的模拟结果与理论推导结果进行对比,发现二者的内力分布基本吻合,从而验证了理论推导结果的合理性与适用性。

To improve the mechanical properties of fish-bellied truss of the hydraulic gate,this paper theoretically studies on the reasonable chord linetype of the fish-bellied truss which is applied to the vertical-lift radial gate,and the axis equation of the upper and lower chords under axial tension or compression was deduced.By comparing the finite element simulation results with the theoretical derivation results,it is found that the internal force distribution of the two results is basically consistent,which verifies the rationality and applicability of the theoretical derivation results.