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日本北海道新干线长约360km,起点为新青森车站,经过函馆市,到达札幌车站,列车荷载标准为P-16。由于修建的北海道新干线高架桥——樱岱17号线桥梁(Sakuratai 17Street Bridge)和北斗市的市道斜交,斜交角小于20°,为确保梁下通行净空,桥梁跨径必须大于80m。因此在市道两侧设置桥墩,修建中墩横梁与主梁固结的2跨连续PC箱梁桥(见图1),桥长82.0m,跨径布置为41.0m+41.0m。
Hokkaido, Japan Shinkansen about 360km long, starting from the Shin-Aomori station, passing Hakodate, arrived at Sapporo station, the train load standard P-16. As the Hokkaido Shinkansen viaduct - Sakuratai 17 Street Bridge and the city of Hokuto are skewed less than 20 °, the span of the bridge must be larger than 80 m to ensure clearance. Therefore, a bridge pier was set up on both sides of the market, and a 2-span continuous PC box girder bridge (see Figure 1) with the mid-pier beam and main girder consolidated was constructed with a bridge length of 82.0m and a span arrangement of 41.0m + 41.0m.