一、前言姬路港临近日本主要产业都市一大阪和岗山,对物资进出口运输起着重要作用,其中饰磨港区有野田川河口,河口两岸要建成工业区,野田川桥就是跨越该河口约1.1公里的公路桥(见图1)。野田川桥由右岸弯桥、跨河桥、左岸桥三部分组成,为了确保野田川航道限界(B=90m,H=18m),跨河桥计划桥面高为25m以上。右岸弯桥计划在国道与铁路线之 I. Introduction Himeji Port is close to Japan’s main industrial city of Osaka and Mt. Okayama, which plays an important role in the import and export of materials. There are Noda Tagawa estuary in the port area and the industrial estates are to be built on both banks of the estuary. Noda Tagawa bridge The estuary is about 1.1 kilometers from the road bridge (see Figure 1). The Noda Bridge consists of a curved bridge on the right bank, a bridge across the river, and a bridge on the left bank. To ensure that the Nakagawa River channel is at the boundary (B = 90m, H = 18m), the planned bridge deck height above the river bridge is 25m or more. Right bank curved bridge plan in the national highway and railway line