论文部分内容阅读
从世界各国近二十年来桥梁工程的建设和发展中可以发现,箱形梁正在提供经济、合理而又美观的梁式空间结构,这是因为箱形梁不但可以发挥结构空间受力的优点,而且便于在工厂分段制造,随后在工地快速拼装,从而可以大大缩短施工期限。 但是,钢箱梁的变形问题严重地影响它的优点的发挥,从而影响它的推广应用,因为变
From the construction and development of bridge projects in nearly 20 years in various countries in the world, it can be found that the box girder is providing an economical, reasonable and aesthetic beam-shaped space structure. This is because the box girder can not only exert the advantages of structural space force, And easy to manufacture in the factory, then quickly assembled at the site, which can greatly shorten the construction period. However, the deformation of the steel box girder seriously affects the advantages of its play, thus affecting its promotion and application, as variable