To install the crane span before installation, camber, level of metal structure of main girder bending, trolley rail height difference, gauge deviation, diagonal bridge survey.
安装前要对起重机安装跨度，金属结构主梁的拱度、水平旁弯，小车轨道高低差、轨距偏差，桥架对角线等进行测量。
A crane dismantles another section of the fixed service structure on Launch Pad 39B at NASA's Kennedy Space Center in Florida.
佛罗里达周NASA肯尼迪航天中心，一个吊车正在拆卸39B号发射台固定支撑结构的另一部分。 拆除旋转服务结构（RSS）的工作仍在继续。
The strength design of the tower crane structure is mainly to ensure that the metal structure part meets the strength condition in the work process.
塔式起重机结构的强度设计主要是确保金属结构部分在工作过程中满足强度条件。
With the popularization and application of this structure in industrial factory with suspended crane, the fatigue performance becomes the hot problem to be solved for many years in engineering circle.
随着螺栓球节点网架在悬挂吊车工业厂房中的推广应用，其疲劳性能成为工程界多年来尚待解决的热点问题。
Build finite element model of main structure of container crane for finite element analyse.
建立集装箱起重机结构的有限元模型。用于有限元分析。
Wall crane is fixed to the wall cantilever crane, or may be along the wall or other support structure on the elevated track running cantilever crane.
壁上起重机是固定在墙壁上的悬臂起重机，或者可沿墙上或其他支承结构上的高架轨道运行的悬臂起重机。
This paper describes the calculation method and process of stress amplitude and stress amplitude spectrum to evaluate the safety life time of steel structure for tower crane.
本文介绍了塔式起重机钢结构安全寿命评估中的应力幅及应力幅谱系数的计算方法和过程。
Cracks occurred in the main weld joining the web and upper wing panel of an overhead crane girder of I-section, some of which have expanded to the structure material and even led to girder fracture.
桥式起重机采用工字形截面作为主梁，使用多年后该结构形式的主梁上翼缘板和腹板连接的主焊缝及母材多处产生裂纹，甚至发生主梁断裂事故。
This paper describes the new features as well as factories and mines with crane components, the main structure of the suction system design theory.
文章描述了矿用起重机的功能及各组成部件主要结构和吸料系统设计的理论基础。
The fault of metal structure is one of main factors that affects gantry crane working in safety.
金属结构的故障是影响起重机正常工作的主要因素之一。
FEM special software that is especially suitsble for the analysis of intemal forces in the structure of gantry crane is introduced in the paper.
介绍了针对水电站门式起重机门架结构和受力特点而开发的门架有限元分析专用软件。
Crane girders anchored to rock face is a new structure and has become core structure for construction and operation of underground powerhouse.
岩壁梁是一种新型结构，因而岩壁梁是地下厂房施工和运行的核心建筑物。
The rationality and reliability of main hoist reducer adopted with double spiders structure for large bridge crane are introduced.
介绍了设计大吨位双钩桥式起重机主起升减速器采用双行星轮结构的合理性和可靠性。
The using situations and structure characteristics of crane brake are expounded in this paper.
叙述了起重机制动器的结构特点和应用情况。
The paper builds the models at different stages of lifting operation on the basis of analysis of loads influencing crane structure fatigue.
在分析影响起重机金属结构疲劳载荷情况的基础上，给出了起重机主梁起吊过程中不同阶段的动力学模型。
This paper introduced the hardware structure and control arithmetic of load's anti-swing control system of overhead and gantry crane.
介绍了桥门式起重机吊重防摇控制系统的硬件结构和系统控制策略。
Combining the dynamics characteristic of crane on lifting and the real structure, the loading model for finite element simulation is presented.
根据转台结构在起吊工况下的动力学特性，结合实际情况建立有限元动力学模拟的载荷模型。
The fatigue of the grid structure with bolt-sphere joints under the function of suspended crane has been greatly concerned by engineers and researchers.
螺栓球节点网架结构在悬挂吊车作用下的疲劳是工程界和学术界关注的热点，该结构的疲劳关键是高强度螺栓的疲劳。
This paper mainly introduces the principle and composition properties of bridge crane CAD system for bridge structure.
介绍桥式起重机金属结构计算机辅助设计系统的软、硬件组成、主要功能和结构特点。
This paper describes the reasonable structure design and fabrication method of tower crane standard section to ensure its quality and fulfil the working requirements.
本文介绍了塔身标准节的合理的结构设计与加工方法，以确保塔身标准节的制造质量和满足使用要求。
The experimental and numerical results indicate that the structure of the tower crane meets the demands of design in both strength and stability.
试验与计算的结果均表明该抱杆结构满足强度与稳定性设计要求，吊装过程中抱杆不会发生破坏。
Through fatigue test and theoretic analysis of structure, principle of destruction is educed about crack due to structure fatigue to mental structure of portal crane.
通过结构疲劳实验和理论分析，得出了结构疲劳裂纹对门机金属结构的破坏原理。
Finally the assessment result and the opinion of defects treatment for the whole crane platform concrete structure were given out.
最后，对整个启闭台混凝土结构提出了评估结论和缺陷处理意见。
These methods can be helpful to reduce or control the welding stress in the structure of port crane.
这些工艺、方法的正确运用有助于控制港口起重机的主要结构件的焊接应力。
As a result, the study and analysis of the structure of tower belt crane can redound to the design of tower-belt, which has own knowledge property right.
因此，对塔带机的结构进行研究和分析，可以为发具有自主知识产权的布料机提供基础。
The structure of shipbuilding gantry crane has single and double girder types.
造船龙门起重机结构型式分为单梁和双梁。
The structure of shipbuilding gantry crane has single and double girder types.
造船龙门起重机结构型式分为单梁和双梁。
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