The internal force influence line of equation section and catenary ream less arcade were cal- culated by computer program by Hardness Conversion Mode,which has particular application value to improving calculation efficiency and precision in arcade.

Borrowing the idea of ∑method which is one of the methods to make static analysis of arcade, static deformation curves of arch and pier are derived according to the reciprocal theorem of work and the (elastic) centre method.

As the highway bridge s foundations changing and changing, the arcadecalculation is important and important in recent years.

For the problem in the construction of double multi-arch tunnel,the paper discussed the design of Changyanling multi-arch tunnel for reference.

The paper discussed the numerical analysis of multi-arch tunnel cracks,and proposed some advice for the cracks cause.

This paper gives an introduction to the selection of construction scheme for arch box, design of hoisting and fastening system, measures for laterally stabilizing arch rib and simulative analysis of structure of the bridge and describes the construction technique for hoisting and closing large-span and multi-arch rib on single base.

In this thesis, based on the Liuzhou Jinglan Bridge s demolition project, demolition method and construction monitoring of a reinforced concrete multiple arch bri.