农道桥的设计,对水利工程技术人员来讲並不为难题,可是其中有些结构细部的处理却往往被忽略,以致给养护维修和使用带来不利的影响。为减少这类弊端,本人仅就见到的两个问题,提出来供同行参考。一、支座的设置一座桥梁(包括渡槽),按其承受外力的性质可分为上部结构(桥跨结构)及下部结构(墩、台和基础)两大部分。连接上下两大结构,使之成一完整建筑物的结构叫做支座。支座就像鞋的功能一样重要。人们根据不同的需要,用不 The design of the agricultural bridge is not a problem for the technical personnel of the water conservancy project, but the handling of some of the structural details is often overlooked, which has adversely affected maintenance and use. In order to reduce such drawbacks, I only proposed two references to my colleagues for reference. First, the support of a bridge (including aqueduct), according to the nature of its external force can be divided into the upper structure (bridge span structure) and the lower structure (pier, platform and foundation) two major parts. The structure that connects the two upper and lower structures so that they form a complete building is called a bearing. The bearing is as important as the function of the shoe. People use different according to different needs