Benefits:
1. The ability of a larger span.
2. Be able to fully achieve local materials, compared with the beam bridge can save a lot of steel and cement.
3. Good durability and less maintenance and repair costs.
4. appearance.
5. The structure is relatively simple, especially masonry arch bridge technology can easily be mastered, is conducive to widespread adoption.
Cons:
1. larger self, the corresponding horizontal thrust is larger, increase the amount of substructure works, higher demands on ground conditions.
2. The bridge is generally used, the method of construction of the bracket, with the increase in the construction of high span and bridge, brackets or other ancillary equipment costs increased significantly, the bridge is also a long time.
3. Due to the larger horizontal thrust arch in continuous porous large, medium and bridges, to prevent the destruction of a hole affect the safety of the whole bridge requires the use of more complex measures or one-way thrust pier, an increase of cost.
4. Compared with the beam bridge, the arch bridge building height is higher, when used in urban interchange bridge and plain areas, because the deck elevation increase, leaving the project to increase the amount of cross-strait wiring, or to deck longitudinal increases, increasing the cost, but also on the road disadvantage. Fasting arch structure by cross walls or steel and deck system consisting of horizontal wall usually stone or concrete masonry into, in order to save masonry, weight or to facilitate the passage of maintenance personnel on the arch, when the transverse wall is wide, laterally digging holes in the wall of the cross, the cross wall thickness of not less than 0.6m below deck arch bridge structure by arch ribs, suspended structure and horizontal connecting lines of three parts.
