3、plantsand manufacturing fields.They playanimportantrole in the development ofthe societyand theirpossibleapplicationsare expanding over the years.Domestic manufaeturersin theirrespeetive areasexpand produet range and optimize Product Performanee,by introducting advaneed teeh
4、nology to develop theirown Productsorthe foreignadvanced teehnologyto improve Product quality.Firstly,the background and significance ofthisresearchwere introdueed,and the development and the structural classification ofthe gantry crane are diseussed briefly in the paper,The
5、 450t38m gantrycrane wasdesigned withitsbasic Parameters;The static load,dynamic load,wind load,horizontalside force,collisionforcewere computed,and stability and saftycheeked.The metalstructure ofgantrywasdesigned and calculates.hoisting mechanism and walking mechanism ofth
6、e carwere designed and calculates; walking mechanismofthe cart wasdesigned and calculates,Key words:Crane;Structuraldesign;hoisting mechanism;walking mechanism;目录摘要............................................................65Abstract.........................................