大跨度预应力混凝土桥梁的发展趋向(上)

• 作 者: 苏尚本 唐铁汉
• 机 构: 铁道部科学研究院,铁道部科学研究院
• 出 处: 铁道建筑
• 发表日期: 1985年01期
• 关键词: 桥梁工程 混凝土斜拉桥 桥梁结构设计 连续梁桥 大跨度预应力 钢斜拉桥 施工方法 主跨 施工工艺 梁式桥

随着桥梁结构设计理论日臻完善,高强材料,新的施工工艺在桥梁工程中的广泛应用,世界上大跨度桥梁的兴建与日俱增,大跨度预应力混凝土桥梁有着更为广阔的发展前景。本文着重讨论了大跨度预应力混凝土斜拉桥及连续梁桥设计中为工程界所关注的一些问题,列举了发展中的具有生命力的几种施工方法,这些施工方法无疑将给桥梁工程的发展,带来革命性的变革。

With the improvement of the theory of bridge structure design, the application of high-strength materials and new construction technology in bridge engineering, the construction of long-span bridges in the world is increasing day by day. The long-span prestressed concrete bridges have a broader development prospect. This paper focuses on some issues that are of concern to the engineering community in the design of long-span prestressed concrete cable-stayed bridges and continuous girders, and presents several viable construction methods in development. These construction methods will undoubtedly give the bridge project development , Bringing revolutionary change.