论文部分内容阅读
一、斜拉桥的发展概况斜拉桥,又名斜张桥、斜缆桥或拉索桥,它是一种悬吊式的桥梁结构。根据历史记载,我国是最早修建悬吊式桥梁的国家。最早的吊桥,其承重索是用藤或竹编成的单根索。鉴于单索不够安全,自然就出现多索桥,见图1。可见,较原始的多索吊桥(图1c、d 和 e)就是近代斜拉桥的雏形。
First, the development of cable-stayed bridge Cable-stayed bridge, also known as diagonal tension bridge, oblique cable bridge or cable bridge, it is a suspension bridge structure. According to historical records, our country was the earliest country to build a suspended bridge. The earliest suspension bridge, the load-bearing cable is made of rattan or bamboo single rope. In view of the single cable is not safe enough, naturally appeared in the cable bridge, see Figure 1. Visible, the more primitive suspension bridge (Figure 1c, d and e) is the prototype of modern cable-stayed bridge.