刚架桥是桥梁结构的基本体系之一。它的基本特征是将桥梁上部结构和下部结构整体地连接在一起,形成为一个刚架体系的结构。由于在上、下部结构连接处是一个刚性的节点、能承受负弯矩,对桥跨结构的跨中截面能起到卸载作用;同时,在基脚处具有较大的水平推力,有似于拱式结构的作用,因此有可能将刚架桥的建筑高度做得小些。 Rigid bridge is one of the basic structure of the bridge structure. Its basic feature is to connect the bridge superstructure and the substructure as a whole to form a rigid frame structure. As the joints between the upper and lower structures are rigid nodes that can bear the negative moment, they can unload the mid-span cross-section of the bridge structure. At the same time, there is a large horizontal thrust at the foot of the bridge, The role of the arch structure, it is possible to bridge the height of the building made smaller.