According tostrength, static and dynamic rigidity conditions, this paper analyses and discusses differenttype structure of gantry crane in an all-round way. It derives rational cantilever length andadvances a method which can quickly determine danger cross-section which acts control un-der different cantilever length in the main girder design. All...
本文按照强度、静态刚度和动态刚度条件对不同类型门式起重机结构进行全面的分析与探讨，得出了合理的悬臂长度，同时提出在不同悬臂长度下迅速确定控制主梁设计的危险截面的方法，从而简化了设计工作，为门式起重机总体参数优化匹配和静、动态设计奠定了理论基础。
Steel through truss bridge has some excellence, such as low girder, light deadweight, high carrying capacity, comfortable travelling crane, short construct periods.
下承式钢桁架桥具有梁高低、自重轻、承载能力大、行车平稳舒适、施工周期短等优点。
Along the workshops we will install security defense railing, and adjust the inclined stairs which connecting ground and roof according to fire protection and examination requirement. All the flat roof for examine and repair are required to equipped with security defense railing, those rooms need adiabatic build in double roof style. The crane girder above the hear source of welding and hot treatment should be equipped with anti-head radiation.
厂房的屋面周边均设安全防护栏杆，按消防及情面检修要求设置由地面上屋面的斜钢梯，沿厂房屋面高低跨处屋面垂直联系的直钢梯；各跨间四周均设置环形贯通的起重机安全走道，其标高与各跨间的吊车轨面标高相同，同时设置上下安全走道的楼梯；所有检修用的平台及走台均设安全防护栏杆：凡需隔热的房间设吊顶；焊接、热处理等热源上方的吊车梁、屋架下弦要防热辐射。
Manual single girder bridge crane is a crane.
手动单梁起重机是桥式起重机的一种。
To solve the problems of the multi-variables and multi-constraints in crane main girder optimization design, the paper proposes a new particle swarm optimization algorithm based on chaos series.
为了解决起重机箱形主梁优化设计中的多变量、多约束问题，提出了一种新的基于混沌序列的粒子群优化算法。
HD electric single girder overhead crane advantages and features:△Use optimized computer design box type girder as main support grider.
HD单梁桥式起重机的优点及特征：△以计算机优化设计的箱形梁作为主承载梁。
The main products of the company includes road bridge engineering equipment such as single-beam crane, double-beam crane, gantry crane, foundery crane, bridge girder erection machine, etc.
公司主要产品有单梁起重机、双梁起重机、门式起重机、铸造起重机、架桥机等路桥工程设备及各种非标起重设备，为冶金、电力、机械、矿山、港门、石化等行业配套服务，产品远销国内外。
The technical standards of this kind of crane are in accordance with JB/T1306《Type LD electric single girder crane》and JB/T2603《Type LX electric single girder suspending crane》, lt features compact construction, flexible manipulation. with pendant, remote or cab control, it is a indispensable eguipment for material handling in workshops, warehouses etc.
本单元起重机符合JB/T1306《电动单梁桥式起重机》及JB/T2603《电动单梁悬挂桥式起重机》标准规定。其结构特点是电动葫芦或手动单轨小车沿主梁工字钢下翼缘运行，进行物料搬运作业，通常用于车间、仓库等物料搬运作业，其中手动单梁起重机用于不允许用电或无电源场合。配合马达抓斗或单轨抓斗还可用于散装物料搬运作业。本单元起重机结构紧凑，操作灵活，既可用于地面操作，也可用于司机室操作。特殊要求情况下，还可以进行遥控操作。是工业生产或贮运不可缺少的装备。
This paper describes the characteristics of girder, trolley, hook, hoisting mechanism and electrical system of large ladle crane s, based on comparing their comprehensive performances.
本文对大型铸造起重机的综合性能进行了比较，归纳分析了桥架、小车、吊具、各机构结构形式及电气控制系统的特点。
The company specializes in products:single, double girder overhead cranes, gantry cranesshipbuilding cranes, electric hoistexplosion, insulation, electromagnetic, frequency, remote controlpower station ladle crane series, enterprise managment, product quality, product sales has been improving, with a strong market competitiveness.
公司主要产品有：单、双梁桥式起重机、门式起重机和造船起重机，电动葫芦及防爆、绝缘、电磁、变频、遥控、冶金、铸造及电站等系列起重机，企业管理工作、产品质量、产品销售在不断提高，具备了极强的市场竞争能力。
They can also be used instead of common double-girder overhead crane at production workshop in light textiles or food industry. It has two kinds of classification, that is, light and medium.
适用于机械加工车间、冶金厂辅助车间、仓库、料场、电站等的转运、装配、检修和装卸作业；它也可以代替普通双梁桥式起重机，用于轻纺工业和食品工业的生产车间。
The paper develops the basic system of state-appraisal method aiming at monolayer steel structure workshop; According to the influence factor of structural reliability, the paper also establishes the appraisal index and gradation principle to the effect foundation column-system roof covering-system and crane girder-system; the appraisal method of main index of unit sections shortening surface temperature and deformation is especially researched; The integrated appraisal method of structural reliability of industrial building is set up on the basis.
论文针对单层钢结构厂房，首先建立了状态评定方法的基本体系：根据结构可靠性的影响因素，进一步建立了作用、地基基础、柱系统、屋盖系统、吊车梁系统的评定指标和分级原则；专门研究了构件截面消弱、表面温度、构件变形等主要指标的评定方法；在此基础上，建立了厂房结构可靠性的综合评定方法。
This product is in compliance with the standard— JB1306－84 for LD Single Girder E. O. T Crane.
本产品符合 GB1306－94《 LD 电动单梁起重机》国家标准。
For the high tensile bolt connection between girders and carriages of double girder overhead traveling crane with electric hoist, this paper analyzes the forces exerted on the bolts and gives their strength check procedures.
摘要介绍了葫芦双梁主梁与端梁连接的高强度螺栓的校核过程，通过分析高强度螺栓的受力特点，建立校核模式，总结校核步骤及方法。
Company of more than 4000 square meters production workshop to accommodate the full range of mechanical processing equipment, testing equipment, ancillary equipment and more than 100 sets, of which 30 lathes (including 23 ordinary lathe, CNC lathe 5, hexagonal lathe 1, Platybelodon lathe 1 milling machine 10 (including ordinary milling machine 5 sets, 2 sets of CNC milling machine Honing Machine 1; Horizontal Boring 1; drilling machine 15 (including ordinary drilling machine 5, numerical control drilling machine 9 deep Drill hole 1 grinder 8; electric processing equipment 1; band sawing machine 2; planer 1; electric single-girder crane 1; other auxiliary equipment to Taiwan more than 30 (including the electric furnace, electric welding machine, dynamic balancing machine, the pressure machines, air compressors, cutting machine, test stand, tester, etc.).
公司4000多平方米的生产车间容纳了齐全的机械加工设备、检验仪器、附属设备100余台套，其中车床30台（包括普通车床23台，数控车床5台、六角车床1台、铲齿车床1台）；铣床10台（包括普通铣床5台、数控铣床2台）；珩磨机1台；卧式镗1台；钻床15台（包括普通钻床5台、数控钻床9台、深孔钻1台）；磨床8台；电加工设备1台；带锯床2台；刨床1台；电动单梁起重机1台；其他辅助设备30余台（包括电炉、电焊机、动平衡机、压力机、空气压缩机、切割机、试验台、检查仪等等）。
Through the base metal welding and welding deformation and welding method of analysis, welding equipment, welding norms of choice, thereby assessing the report prepared by the welding process, then the preparation of K40 portal tower crane Rotary and portal box girder of the manufacturing process.
通过对母材焊接性和焊接变形的分析以及焊接方法、焊接设备、焊接规范的选择，从而编写焊接工艺评定报告，进而编制K40门座式塔式起重机回转机构和门座箱形梁的制造工艺。
The working performance and stability of the rock bolt crane girder has always being an important problem in project design and construction. Combining with the project practice of Baishan pumped storage power house, the articale treats the rock bolt crane girder as the objection of research and gets the concrete and rock mass modeled by the Drucker-Prager elastic-perfectly plastic constitutive relation. It takes full consideration of the effect caused by deformation of concrete, rock mass and anchor rod on rock bolt crane girder, and applies three-dimensional non-linear finite element method to simulate and analyze the effect caused by the stage excavation of Baishan pumped storage power unergrond houses mid-bottom part and wheel loading on deformation, stress and stability of the rocket bolt crane girde and its nearby surrounding rock mass.
本文结合白山发电厂抽水蓄能泵站建设的工程实际，以岩锚吊车梁为主要研究对象，用Drucker-Prager弹塑性本构关系用来模拟地下厂房围岩和混凝土材料，全面考虑混凝土、围岩和锚杆三者的变形对岩锚吊车梁受力状况的影响，利用三维非线性有限元技术仿真模拟地下厂房的逐层开挖过程及吊车轮压载荷作用，对白山泵站地下厂房岩锚吊车梁及其附近围岩的受力、变形和稳定性，作了全面计算分析与评价。
This paper describes chiefly the basic principle and method of the optimum design of the crane girder by using the feasible direction method.
本文主要阐述用FDM方法对起重机主梁进行优化设计的基本原理和方法，并对儿种主梁进行了初步计算。
Several equations about absolute maximum deflection of crane girder
关于吊车梁绝对最大挠度的几个公式
A new checkout method for the deflection of crane girder is provided in the code for design of steel structure (GB50017 & 2003), and the new allowable values of deflection are also given.
《钢结构设计规范》（GB50017&2003）采取新的方法验算吊车梁容许挠度，并给出了容许挠度限值。