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一、前言日本山口县中国公路上的足谷川桥,是目前日本最大跨径的预应力连续梁桥。该桥跨越的深谷呈60°陡坡面,桥面至谷底的深度约105米。桥位附近定为西中国山地国定公园,所以在设计上、下部结构时,要注意选择与山谷幽美景色相协调的形式,并且不能损害自然环境。经过方案比较后,选择了中孔为127米的三跨预应力混凝土连续梁上部结
First, the foreword Yamaguchi, Japan, China’s Footpath Bridge on the Chinese Highway, Japan is currently the largest span of prestressed continuous beam bridge. The bridge across the deep valley was 60 ° steep slope, the depth of the bridge deck to the bottom of about 105 meters. Near the bridge as the West China Mountain National Park, so in the design, the lower part of the structure, we should pay attention to choose the beautiful scenery of the valley in harmony with the form, and can not damage the natural environment. After comparing the program, chose the middle hole of 127 meters of three-span prestressed concrete continuous beam upper knot