According to the principles of multi-point supporting strengthening flat arch bridge,based on the fabrication of two model arches and test of the model arches before and after strengthening,strain,deflection,crack control,failure mode,maximum bearing capacity and stress of supporting longitudinal bar before and after flat arch multi-point supporting strengthening were compared and analysed.

Measures could be adopted in the design are introduced in this article by calculating and analyzing the ellipse flat arch bridge from two engineering examples and comparing the differences between two hinged arch and hingeless arch in different rise-span ratio.

In order to analyze and compute a kind of special bridge structure-the two-hinged flat arch bridge with scarce 1/12 rise-to-span ratio,the space Perspex model for the global structure was established based on the similarity theory of the model test.

The main bridge of Youyi Road Interchange in Tianjin City is a through no-supporting steel flat arch bridge.

Construction stress control of long-span arch bridge;

Brief analysis of earthquake s reflection on arch bridges with a large span;

Equal section catenary no hinge slab rib arch bridge construction technique;

Elastoplastic analysis of arched bridge with concrete-filled steel tubular components;

Research on the arched bridge anti-thrust system of Wen-Yuan freeway program;

Cement concrete arched bridge crack manage the method research.;