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- W2359613349 abstract "The left main bridge of Maanshan Changjiang River Highway Bridge is a three-tower two-main span suspension bridge with span arrangement of(360+2×1 080+360)m.The central tower is a door-shaped steel-concrete hybrid structure which is fixed to the stiffening girder.The lower tower legs adopt the prestressed reinforced concrete structures while the upper tower legs are steel structures.The steel towers consists of 21 sections,the first section is installed by floating crane.The standard sections installed by tower cranes are 6mlong,with a maximum lifting weight of up to 235 t.To make sure that the geometrical shape of steel tower meet the requirements,the factors that have influence on the installation precision of the steel tower were analyzed,forming ageometrical shape control procedure that focus on the control of the fabrication quality of the steel tower and bases on the installation precision of the first section of the steel tower,and the corresponding controls for the factory fabrication and field installation of the steel tower sections were conducted.The factory fabrication control covers the spare parts and components processing,sectional unit fabrication,sectional assembling,and end surface machining,and preassembling.The field installation control items include first section installation,standard section installation,and the connection of the cross beams and steel tower.The engineering practice proves that by using the geometrical control technique taking the control of the fabrication precision of the steel tower as the key in steel tower erection,the fabrication and installation precision of the steel tower during the construction process met the requirements,achieving the goal of steel tower geometrical shape control." @default.
- W2359613349 created "2016-06-24" @default.
- W2359613349 creator A5052923190 @default.
- W2359613349 date "2014-01-01" @default.
- W2359613349 modified "2023-09-25" @default.
- W2359613349 title "Geometrical Shape Control Techniques Used to Steel Towers of Maanshan Changjiang River Highway Bridge" @default.
- W2359613349 hasPublicationYear "2014" @default.
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