美国弗里芒特钢拱桥悬吊架设法

• 出 处: 桥梁建设
• 发表日期: 1974年04期
• 关键词: 钢拱桥 钢筋混凝土桥 钢桥面 波特兰市 柔性拱 刚性梁 加劲梁 双层的 千斤顶 吊杆

一、概要弗里芒特桥在美国俄勒岗州波特兰市。该桥是双层的三孔连续刚性梁柔性拱公路桥,全长658.07m,三孔跨径为136.67+382.63+136.67m,上下层宽度均为20.73m,上层为钢桥面钣,下层为钢筋混凝土桥面版,全桥钢重约17,000t。架设位置及桥式见图1、图2。

I. Overview The Freemont Bridge is in Portland, Oregon. The bridge is a double-deck three-hole continuous rigid beam flexible arch road bridge with a total length of 658.07m and a three-span span of 136.67 + 382.63 + 136.67m. Both upper and lower widths are 20.73m. The upper deck is a steel deck with the lower deck being Reinforced concrete bridge deck, full bridge steel weighs about 17,000t. Erection location and bridge see Figure 1, Figure 2.