近几年的农田基本建设中,我们应用壳体承载能力强的特点,设计了一种壳体桥—相交筒壳桥。经过几年使用观察、进行内力电算分析后,已在全县推广使用,建了近20座。初步实践证明:这种桥梁结构有工程量少、用料省、施工速度快、受力合理、造型轻巧等优点及跨径适应性不广的缺点。简要介绍如下: In the recent years of farmland capital construction, we have designed a kind of shell bridge-intersecting cylinder shell bridge with the characteristic of strong bearing capacity of the shell. After several years of observation, the internal force computer analysis, has been promoted in the county, built nearly 20 seats. Preliminary practice shows that this kind of bridge structure has some shortcomings such as less engineering quantity, material saving, fast construction speed, reasonable force, light weight and other advantages and wide adaptability. Brief introduction is as follows: