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Study on the Installation and Construction Technology of the Transfer Stairway on the Track Platform on Bridge—— Taking the Construction of the Jialing River Bridge in Zengjiayan of Chongqing City as an Example

The bridge deck on the Yuzhong side of Zengjiayan Jialing River Bridge is close to subway lines and light rail stations. It is necessary to set up transfer stairways on both sides of the bridge. The construction technology of installing and replacing with tunnel under special conditions is discussed to provide reference for bridge construction.