• According to actual condition, the strengthening scheme of the crane girder has been brought forward.

    根据工程实际情况,提出吊车加固方案

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  • Based on this, the stability of the surrounding rock mass and the rock wall crane girder is evaluated.

    基础上,围岩岩壁吊车稳定性进行了评价。

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  • The further excavation of underground powerhouse will affect the stress distribution of system bolts and rock mass near crane girder.

    地下厂房继续开挖对于吊车系统锚杆周围岩体应力分布有较大影响

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  • It is an effective method to carry out regularly inspection on steel crane girder structures in order to prevent from fatigue failure.

    结构吊车梁进行定期、不定期的检查避免发生疲劳失效最有效方法

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  • The working performance and stability of the rock bolt crane girder has always being an important problem in project design and construction.

    吊车施工运行期的工作性态稳定性工程设计和施工关注主要问题之一。

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  • The methods of calculation for the structural stability of rock-bolted crane girder include the rigid equilibrium method and the finite element method.

    岩锚吊车结构稳定计算所普遍采用方法刚体平衡有限单元法。

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  • Through bearing capacity test and quite a long period of operation, the structure and anchorage measures of concrete crane girder are proved to be reasonable.

    通过承载试验成果段时间运行表明,岩壁吊车体形及锚固措施设计合理的。

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  • The rock bolt crane girder is an advanced structure which has played and will play continuously important roles in the construction of hydropower plant in China.

    水电站地下厂房吊车一种先进结构形式 ,在我国水电工程建设发挥了重要作用并且将会发挥越来越重要的作用。

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  • The research shows that stress level of the crane structure is low and crane girder has large enough strength margin to assure the safety of using crane under extended service.

    研究结果表明门机结构总体应力水平低,严重受力件主梁具有较大强度富裕度可以保证超期服役的安全性

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  • The paper discussed the sectionalization, the method for finding equation and the drawing of the envelope graph of bending moments of the simple crane girder under the action of crane loads.

    论述了在吊车荷载作用支吊车弯矩包络的分段、方程求法,最后通过实例说明包络图绘制

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  • 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.

    式起重机采用工字形截面作为主梁,使用多年后结构形式主梁翼缘腹板连接焊缝及母多处产生裂纹,甚至发生主梁断裂事故。

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  • Based on the field load tests of more than 40 years old a reinforced concrete crane girder after strengthening strengthened with CFRP, the strains and deflections under the moving loads were analyzed.

    通过一个已使用40多年钢筋混凝土吊车碳纤维加固现场加载试验,分析了加固后吊车梁在吊车移动荷载作用正截面和斜截面的应变分布规律挠度变化规律。

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  • 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.

    安装起重机安装跨度金属结构主梁度、水平小车轨道高低轨距偏差架对角线等进行测量

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  • Finally, it presents some advice and Suggestions for the repairing and strengthening method of fatigue crack of upper part of steel crane-girder in the high-frequency.

    最后重级工作制吊车梁上部区域出现疲劳裂缝修复加固方案提出一些意见建议

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  • The results show that the crane is unnecessary to replace for its low total stress level and large strength margin of the main girder (main stressed part).

    计算结果指出门机结构总体应力水平较低严重受力件主梁具有较大强度富裕度,不必更换

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  • Analysis of deflection of main girder of crane is made according to the result of residual stress test.

    根据残余应力测试结果,对起重机主梁挠变形进行了分析

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  • A new technique is put forward that high-low brace gantry crane wide double guiding girder method to construct bridge.

    本文提出了高低支腿龙门吊宽幅这种新的桥梁工程施工方法。

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  • 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、多约束问题提出一种新的基于混沌序列粒子优化算法

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  • 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

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  • L single girder gantry crane is a bridge type, suitable for open storage for general cargo railway transport loading and unloading and lifting operations.

    单梁门式起重机架型的种,适用露天仓库铁路沿线进行一般装卸起重搬运作业。

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  • In recent years some new profile steels are used for main girder of domestic made electric single girder overhead travelling crane.

    近年国内电动单梁起重机主梁采用一些截面型式。

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  • This paper discusses the question of crane main girder camber and the pre-cambering curve, introducing camber values stipulated in related crane standards in China and abroad.

    本文论述起重机主梁度及曲线的基本原理,介绍了国内外起重机技术标准规定的上拱度

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  • Main girder and other components of overhead traveling crane are typical welded structures, the primary failure type of which is fatigue crack.

    桥式起重机主梁构件典型焊接结构主要失效形式疲劳断裂。

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  • Single-girder gantry crane is a gantry crane.

    单主梁门式起重机门式起重机的一种

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  • SL Type Manual Single-girder Crane is a light-small kind, which is applicable to equipment installation, maintenance and work sites without power source.

    SL手动单梁起重机属轻机种,适用于工厂设备安装维修以及无电源的作业场所。

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  • As to the above characteristics of the gantry crane, the further study has been made for formwork design, concreting and vibrating and girder in tension.

    针对门机大梁以上特点,对模板设计混凝土浇筑振捣、梁体张拉施工技术难点进行深入研究

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  • The advanced hoisting technique and control method of prefabricated box girder over sea including spreader gear design, floating crane improvement and transport barge have been expounded in details.

    详细阐述预制箱梁海上新的吊装工艺控制方法包括设计浮吊改造运输驳改造

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  • A (temporary) running girder crane, with a reach covering the above points and extending to a location convenient for further transport of the coal burner, would be recommended.

    我们建议,启用个(临时)横梁起重机以便能覆盖上述各点延伸至一个便于进一步运输煤炭燃烧器地点

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  • A (temporary) running girder crane, with a reach covering the above points and extending to a location convenient for further transport of the coal burner, would be recommended.

    我们建议,启用个(临时)横梁起重机以便能覆盖上述各点延伸至一个便于进一步运输煤炭燃烧器地点

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