However, it is restricted in application owing to the lack of a sound theory about the calculation of force of the parabolic oblique arch bridge.

By cracks of square and oblique arch culverts after completion, the paper further analyzes the reasons for crack of non-articulated arch culvert, proposes the preventing measures.

Youxizhou Mingjiang Bridge of Fuzhou is the first open-spandrel rigid-frame arch bridge without vertical columns and oblique supports.