CABLE STAYED SUSPENSION BRIDGE MAKING COMBINED USE OF ONE-BOX AND TWO-BOX GIRDERS

摘要

A kind of cable-stayed bridge strong point suspension has a cable-stayed bridge strong point, at the same with above-mentioned suspension bridge and manufactured and one case two box beam is applied in combination is disclosed. The system of the bridge has one case cable support suspension bridge, and it is in tower that the central span system of the Partial Bridges of the center portion, which is arranged in, in the length direction of the every tower two box beam extended by a tower two sides of girder. It provides in a kind of cable support structure, each one case girder is supported on tower by suspension cable and suspended structure, and wherein the two box girder is supported on tower and passes through two main push-towing ropes and hung rope. The middle part of lateral two box beam is open equipped with center air duct, and the extension vertically downward and main cables with hook rope suspended structure, lower end is open with transverse end center air duct or nearby terminates.