箱梁牛腿横向应力分布规律及有效计算宽度研究

The Study on the Distribution Regularity of Transverse Stress and the Effective Calculating Width of Corbel in Box Beam

以广佛出口放射线不同类型的箱梁牛腿为计算模型,采用空间有限元法,针对牛腿的不同情况,分析了牛腿沿横向和竖向的应力分布规律,探讨了横桥向支座宽度以及水平力对牛腿有效计算宽度的影响,得出了不同情况下牛腿的有效分布宽度及计算公式,供设计人员参考.

This paper is based on the corbels of different types in GuangFu oulet radioactive rays.The distribution regularities of stress in transversal and vertical direction of corbels in different situations are analysed by finite element method.The width of support abutment and horizontal force's effect on the effective calculation width are also discussed.Finally the author presents a calculation formula of the effective distribution width.All of these can be used as reference in design.