桥梁是人类改造自然的象征,是社会经济技术的综合反映,也是美化人类生活的艺术。随着人类社会和经济的不断发展,桥梁建筑从原始的独木桥到现代的斜拉桥、悬索桥,桥型更为丰富,跨径不断超越,在征服大江峡谷之后,如今又向浩瀚的海洋进军。在世界桥梁建设舞台上,我国经过数十年的 The bridge is a symbol of mankind’s transformation of nature, a comprehensive reflection of social economy and technology, and an art of beautifying human life. With the continuous development of human society and economy, bridge construction from the original single-plank bridge to the modern cable-stayed bridge, suspension bridge, bridge type more abundant, span continuously surmounting, after conquering the Grand Canyon, now marched to the vast ocean. In the world bridge construction stage, our country after decades