装配式梁桥高墩计算长度系数探讨

随着我国山区高等级公路的发展,为了节约原材料、减小工程造价,装配式桥梁的中、小跨径化已经成为趋势,这势必造成高桥墩应用的增多。计算长度系数是影响桥墩设计计算的一个关键参数,从结构稳定入手,并考虑了相邻桥墩及支座对墩顶弹性约束的影响,建立桥墩临界荷载与计算长度系数的关系。分析影响计算长度系数的一些参数,并探讨它的变化规律,以供此类桥梁设计应用与参考。

Discussion About Effective Length Factor for High-Pier of Fabricated Beam Bridge

As the development of high-grade highway in mountainous area in China,using middle and small spans has been a tendency so as to save material and reduce construction cost,which could result in more high-pier applied.The effective length factor is an important parameter which affect the design and calculation for bridge pier.The relationship of critical load and effective length factor are created by the structural stability,and at the same time considering the effect of adjacent pier and support to elastic ...