岸an邊bian集ji裝zhuang箱xiang起qi重zhong機ji由you前qian後hou兩liang片pian門men框kuang和he拉la杆gan構gou成cheng的de門men架jia和he支zhi承cheng在zai門men架jia上shang的de橋qiao架jia組zu成cheng，行xing走zou小xiao車che沿yan著zhe橋qiao架jia上shang的de軌gui道dao用yong專zhuan用yong吊diao具ju吊diao運yun集ji裝zhuang箱xiang
，進jin行xing裝zhuang卸xie船chuan作zuo業ye。門men架jia可ke沿yan著zhe與yu岸an線xian平ping行xing的de軌gui道dao行xing走zou


，以yi便bian調tiao整zheng作zuo業ye位wei置zhi和he對dui準zhun箱xiang位wei。為wei了le便bian於yu船chuan舶bo靠kao離li碼ma頭tou，橋qiao架jia伸shen出chu碼ma頭tou外wai麵mian的de部bu分fen可ke以yi俯fu仰yang。對dui於yu高gao速su型xing岸an邊bian集ji裝zhuang箱xiang起qi重zhong機ji，還hai裝zhuang有you吊diao具ju減jian搖yao裝zhuang置zhi。^[2]