A型双梁门式起重机计算说明书.doc

PAGE PAGE II 摘 要 本次设计为20tA型双梁门式起重机结构设计；门式起重机实现港口货场装卸作业效率，减轻工人劳动强度，改善工人操作条件；是货场重要的起重运输机械。A型双梁门式起重机主要由双主梁 两刚支腿 两柔支腿以及马鞍上下横梁组成门式起重机的主要金属结构。 关键字：A型门式起重机；主梁支腿；强度；刚度 Abstract： The design for the 20 t A dual-beam structure design gantry crane；Gantry crane to achieve operating efficiency of the port loading and unloading freight yard，Workers to reduce labor intensity and improve conditions for workers to operate；Gantry crane was lifting the freight yard important transport machinery；A dual-beam gantry crane mainly from two main beam，two rigid outrigger，two flexible outrigger， two the saddle and beams of top and bottom gantry crane of the main metal structure. Keyword： A dual-beam gantry crane；he main beam；outrigger； Strength； stiffness 目录 TOC \o "1-3" \h \z \u HYPERLINK \l "_Toc264626450" 摘要 PAGEREF _Toc264626450 \h I HYPERLINK \l "_Toc264626451" Abstract： PAGEREF _Toc264626451 \h II HYPERLINK \l "_Toc264626452" 第一章总体计算 PAGEREF _Toc264626452 \h 1 HYPERLINK \l "_Toc264626453" 一、总图及主要技术参数 PAGEREF _Toc264626453 \h 1 HYPERLINK \l "_Toc264626454" （一）主要技术参数 PAGEREF _Toc264626454 \h 1 HYPERLINK \l "_Toc264626455" （二）总图 PAGEREF _Toc264626455 \h 1 HYPERLINK \l "_Toc264626456" 二、稳定性计算 PAGEREF _Toc264626456 \h 3 HYPERLINK \l "_Toc264626457" （一）工作状态稳定性计算 PAGEREF _Toc264626457 \h 3 HYPERLINK \l "_Toc264626458" 第二章 主梁计算 PAGEREF _Toc264626458 \h 8 HYPERLINK \l "_Toc264626459" 一、载荷荷及内力计算 PAGEREF _Toc264626459 \h 8 HYPERLINK \l "_Toc264626460" （一）移动载荷及内力计算 PAGEREF _Toc264626460 \h 8 HYPERLINK \l "_Toc264626461" （二）静载荷及内力计算 PAGEREF _Toc264626461 \h 8 HYPERLINK \l "_Toc264626462" （三）风载及内力计算 PAGEREF _Toc264626462 \h 9 HYPERLINK \l "_Toc264626463" （四）大车紧急制动惯性力F大惯及内力计算 PAGEREF _Toc264626463 \h 10 HYPERLINK \l "_Toc264626464" 二、主梁截面几何参数计算 PAGEREF _Toc264626464 \h 12 HYPERLINK \l "_Toc264626465" （一）主梁截面图 PAGEREF _Toc264626465 \h 12 HYPERLINK \l "_Toc264626466" 三、载荷组合及强度稳定性验算 PAGEREF _Toc264626466 \h 14 HYPERLINK \l "_Toc264626467" （一）载荷组合 PAGEREF _Toc2646