英语翻译拱桥的基本原理是通过一个水平推力把原本由荷载产生的弯矩应力变成压应力或者大部分转化为压应力.而且拱桥是向上凸起的曲面,其最大主应力沿拱桥曲面作用,沿拱桥垂直方向的

Question

英语翻译
拱桥的基本原理是通过一个水平推力把原本由荷载产生的弯矩应力变成压应力或者大部分转化为压应力.而且拱桥是向上凸起的曲面,其最大主应力沿拱桥曲面作用,沿拱桥垂直方向的最小主应力为零.拱区别于梁的最大之处就是存在水平推力,如果这个水平推力和支座反力以及作用于其上的荷载的合力的作用点和方向刚好通过拱的轴线,这样的拱就是合理拱,而这样的拱是只受压应力的.如果两者不是重合的,那就存在一定的弯矩应力.

Answer 1

Arch bridge,the basic principle is through a horizontal thrust originally produced by the load of the bending stress to compressive stress or most into compressive stress.And the arch is upward convex surface,surface effect,the maximum principal stress arch bridge vertical direction along the arch bridge,the minimum principal stress is zero.Arches of the difference between the largest parts of the beam is horizontal thrust,if the horizontal thrust and bearing reaction force and resultant force with the load acting on the point and direction just right through the axis of the arch,arch is reasonable arch,that arch is a compressive stress.If they are not overlap,then there is a bending stress.