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拱桥,是我国公路桥梁的主要型式之一。其修建历史之长、使用范围之广、结构型式和施工方法之多均属世界首位。尤其是双曲拱桥的兴建,更加促进了我国桥梁事业的迅速发展。 关于拱桥的设计理论和设计计算方法,虽然我国广大桥梁工作者在已有基础上又作了大量的理论和实践探索,提出了不少改进意见,取得了一定的进展,但就其根本来说,设计理论和设计计算方法基本上还是沿用已有石拱桥的。因此,现有的设计计算方法还不能满足生产实践的需要。
Arch Bridge is one of the main types of highway bridges in China. Its construction history is long, the use of a wide range of structure types and methods of construction are the world’s first. In particular, the construction of the double-curved arch bridge has further promoted the rapid development of China’s bridge industry. As to the design theory and design and calculation method of arch bridge, although most bridge workers in our country have done a great deal of theoretical and practical exploration on the basis of existing theories, they have put forward many suggestions for improvement and made some progress. However, , Design theory and design and calculation methods are basically still use the existing stone arch bridge. Therefore, the existing design and calculation methods can not meet the needs of production practice.