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1965年在全国蓬勃兴起的多肋双曲拱桥,为我国桥梁建设作出了巨大的贡献。但是,双曲拱桥毕竟是新生事物,随着它的不断发展,多肋双曲拱也确有它的不足之处。特别是采用大跨径、无支架吊装施工,它的拱肋合拢横向稳定性差、吊装速度慢、加载程序繁多等缺点,使它的发展受到一定的影响。针对上述缺点,近年来在国内开始发展箱肋单波拱。这种桥型是在总结多肋双曲拱桥经验的基础上向前迈进了一步。它显示出结构合理、施工安全、加快进度、节约材料的优点。
The multi-ribbed double curved arch bridge that flourished in 1965 in the country has made great contributions to the bridge construction in our country. However, the double-curved arch bridge is, after all, a new thing, with its continuous development, multi-ribbed arch really has its shortcomings. In particular, the use of large-span, no-bracket hoisting construction, the arch ribs closed lateral stability is poor, slow lifting speed, loading procedures and other shortcomings, its development is affected to some extent. In response to these shortcomings, in recent years, China began to develop box-rib single-wave arch. This bridge type is a step forward on the basis of summarizing the experience of multi-ribbed arch bridge. It shows the advantages of a reasonable structure, construction safety, speeding up of progress, material saving.