Standard No.:	GB 6974.11-1986
English Name:	Lifting appliances; Vocabulary; Derrick cranes
Chinese Name:	起重机械名词术语 桅杆起重机
Chinese Classification:	J80    Hoisting machinery
Professional Classification:	GB    National Standard
ICS Classification:	53.020.20 53.020.20    Cranes 53.020.20
Issued by:	National Standards Bureau
Issued on:	1986-11-01
Implemented on:	1987-7-1
Status:	superseded
Superseded by:	GB/T 6974.4-2016 Cranes―Vocabulary―Part 4:Jib cranes
Superseded on:	2017-5-1
Language:	English
File Format:	PDF
Word Count:	1500 words
Price(USD):	45.00
Delivery:	via email in 1~3 business day

本标准规定了桅杆起重机的专用名词术语。与其他起重机械通用的名词术语见相应的标准。
桅杆起重机(derrick crane)的定义:
臂架下端与桅杆下部铰接，上端通过钢丝绳与桅顶相连，桅杆本身依靠顶部和底部支承保持直立状态的可回转臂架型起重机。