在建中的特洛普·霍威尔(Troup Howell)桥是一座在其原桥位改建的新桥,位于美国安大略湖南岸、纽约州罗切斯特市,跨越杰纳西河。改建后的大桥为3拱肋公路下承式系杆拱桥(图1),全桥由8跨组成,总长364 m,主跨132 m,桥上设置8车道,日通行汽车10万辆。这种3拱肋系杆图1即将建成的特 The Troup Howell bridge under construction is a new bridge reconstructed at its former site on the southern shore of Lake Ontario, Rochester, New York, across the Genesee River. The reconstructed bridge is a three-arch ribbed under-rover tied arch bridge (Figure 1). The whole bridge is composed of 8 spans, with a total length of 364 m and a main span of 132 m. There are 8 lanes on the bridge and 100,000 on a day pass. This 3 Arch rib tied Figure 1 is about to build special