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我国桥梁数量众多,截至2014年底,公路桥梁的数量就已达到七十多万座,其中以梁桥居多,占总桥梁数量的90%以上。梁桥跨径不同,其内力差异较大,根据梁桥的受力特点,其上部结构又分为简支构造及连续构造,不同的上部结构,其构造形式又分为几种,本文主要论述梁桥上部结构的构造,以及梁桥上部结构设计时的选型。
There are many bridges in our country. By the end of 2014, the number of highways and bridges has reached over 700,000, of which most are girder bridges, accounting for more than 90% of the total bridges. According to the mechanical characteristics of the beam bridge, the superstructure is divided into three types: simple supported structure, continuous structure and different superstructures. The structure of the beam is divided into several types. This article mainly discusses The structure of the superstructure of the beam bridge and the design of the superstructure of the beam bridge.