The main bridge of the Oujiang River North Estuary Bridge in Wenzhou is a doubledeck steel truss girder suspension bridge with three towers and with the main spans of 2×800m.The upper deck of the bridge is designed to carry 6-lane expressways while the lower deck to carry6-lane Class I highways.In the light of the characteristics that the bridge has the multiple towers,long spans and double decks,the key techniques of the design of the support systems,stiffening girder,intermediate tower and the foundation ...
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