增大截面法加固石拱桥的技术应用

石拱桥是极具中华民族气息与特色的桥型，该桥型结构实用、美观．然而随着时代的变迁及交通运输业的发展，大量的石拱桥出现了各种各样的病害，很多桥甚至已发展成危桥．为改善交通状况，消除安全隐患，结合当前经济状况，加固利用旧危石拱桥是合理的．石拱桥加固的方法很多，结合工程实例重点阐述增大截面加固法加固石拱桥的基本原理、方法和步骤．

Enlarged Cross-section of The Stone Arch Bridge Strengthened by Technology Application

Stone arch bridge is a Chinese national flavor and characteristics of the bridge, the bridge type structure, beautiful and practical. However, with the change of times and the development of transportation industry, large stone arch bridges the emergence of a variety of diseases, many bridges has developed the deserted bridge. In order to improve traffic conditions, to eliminate potential safety problems, combined with the current economic situation, strengthening the old stone arch bridge is reasonable. Stone arch bridge reinforcement method, this paper focuses on the section- enlarging reinforcing method for reinforcing stone arch bridge, the basic principle of the method and steps.