柱式桥墩台盖梁的深梁计算与设计

柱式桥墩是公路桥梁设计中普遍采用的结构形式，由于桥梁跨径、斜度、桥宽的变化，很难完全套用现行标准图和通用图，尤其是盖梁标准化程度底，往往需要设计者对盖粱进行内力分析与设计，《公路钢筋混凝土及预应力混凝土桥涵设计规范》仅对钢筋混凝土盖梁跨高比L／h〉5和2〈L／h≤5的情况进行了抗弯、抗剪承载力规定，而跨高比L／h≤2即盖梁作为深梁的承载力未作规定。文中参照建筑部门规范，论述了盖梁作为深梁时的承载力计算方法和步骤，以及设计的构造要求，并列举了计算实例。

Calculation and Design of Pier Capping Beam of Deep Beam

Column pier is a common structural style in bridge design.Due to the change of fly-past,inclination,width in bridge,it is difficult to fully apply the existing standards and general plan map.Especially because the capping beam standardization is low,the internal force often has to be analyzed and designed by designer.The existing ＂bridge rules＂only defined the bending and shearing resistance bearing capacity of concrete coping with cross-High L /h〈5 and 2〉L /h ≤ 5.When L /h ≤ 2,the bearing capacity of capping beam, which is thought as deep beam, is not be defined. In this paper, calculation methods, process and constitution rule in design were discussed.