main beam

Have analysed the bridge skewness influence to the inner force of the main beam.

分析了桥梁斜度在顶推全过程中对主梁内力的影响。

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numerical results show that the effect of metallization thickness is smaller on the direction of main beam and very noticeable on the beamwidth and aperture efficiency.

数值结果表明，金属栅厚度对漏波天线波求方向影响较小，但对漏波天线的辐射效率和波束宽度有明显的影响。

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Continuous beam design of north approach bridge of Hangzhou gulf bridge with the main spans of ( 50+ 80+ 50) m

杭州湾大桥北引桥（50+80+50）m连续梁设计

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Method for handling weld seam quality of main beam of power plant

电厂大梁焊缝质量的处理办法

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During the process of monitoring, we test a number of sensitive factors, research these sensitive parameters effects the linear of the main beam.

并结合浏阳河大桥监控过程对一些敏感性因素的测试，研究这些参数对主梁线形的影响。

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In order to resolve this difficulty effectively, we have to find means to calculate the thermal stress. The factor of concrete shrinkage and creep could not be ignored on strain test of main beam.

混凝土收缩、徐变对应力测试的影响不容忽视；

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The influence of shrinkage, creep and temperature change on main beam geometry is studied.

研究了收缩徐变和温度变化对主梁线形影响.

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A Study on the Walk-Off Angle in the Optical Indicatrix s Principal Section of Uniaxial Crystal; Luminaire designed to be suspended from a cable with its main beam axis at right angles to the axis of the road.

单轴晶光率体主截面内离散角的研究利用电缆进行悬挂的灯具，其主光轴与道路主轴成直角。

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Stayed cable is the primary bearing carrier for main beam, but its service life is found too short.

而斜拉索是主梁上最重要的承力结构，从目前的工程实况来看，它的使用寿命过短，大大影响了斜拉桥的正常服役。

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A Study of the Rigidity and Arch Camber of the Main Beam of Gantry Cranes

门、桥式起重机主梁刚度与拱度研究

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To obtain the characteristics of the left-hand material radome, an Archimedean antenna with broad main beam and broad frequency band is set behind it.

用一个宽波束和宽频带的阿基米德螺旋天线作为被罩天线，研究了该左手材料天线罩的性能。

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The main beam is of all welded steel box structure with strengthening bracings. It consists of 72 segments manufactured in plant and welding on site.

该桥主跨900m，主梁为全焊钢箱加劲梁，分成72个节段在工厂制造后在工地全焊拼装。

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Then a cable force calculation model is established in which the sum of squares of main beam datum mark's relative error is defined as target function, with main beam moments as constraint condition and cable force as optimization variable.

本文提出了以斜拉桥主梁标高相对误差的平方和最小为目标函数，以主梁内力（弯矩）为约束条件，以索力为优化变量，建立了最优施工控制的索力计算调整模型。

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The main, sub-beam handover, the first main beam arch camber, arch camber beam after the meeting.

主 、 次梁交接时, 先主梁起拱, 后次梁起拱.

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Construction Technology of Prestressed Concrete Transition Main Beam

预应力混凝土转换大梁施工技术

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The flexural deformation was main before the test beam cracked, while shear effect was less.

混凝土开裂前，构件的剪切变形较小，主要以弯曲变形为主。

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However, due to its special boundary conditions, its main beam will have a greater longitudinal displacement under the external force. Lacking of effectively design will lead to large collisions between the main bridge and the approach span.

但是由于其特殊的边界条件，在外力作用下其主梁会产生较大的纵向位移，设计不周会导致主桥和引桥之间的剧烈碰撞。

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Research on Main Beam Construction Measurement Technique of Yunyang Yangtse River Highway Bridge

云阳长江公路大桥主梁施工测量技术研究

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With the comprehensive development of highway and urban tridimensional traffic, bridge construction has entered the unprecedented golden period with the rapid development. Box girder, by its unique merits, has long been the main beam section forms.

随着公路及城市立体交通的全面发展，桥梁建设进入了前所未有的飞速发展的黄金时期，其中箱形梁以其特有的优点，已成为大跨径连续梁桥和连续刚构桥主要的梁截面形式。

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Under a temperature cycle, the dynamic response of the main beam is actually due to thermal deformation caused by temperature difference.

一个温度周期条件下的动态响应实际上是主梁截面温差引起热变形所致，动态响应的速度、加速度都很小。

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Main Quality Defects And Controlling Methods for CC Beam Blank

异型坯主要质量缺陷及控制措施

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Discussion of Assembly and Weld Process Programs for the Cased Bridge Grain's Main Beam

箱型桥式起重机主梁装焊工艺方案讨论

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a study on crunode structure between abutment and main beam of jointless bridge

无伸缩缝桥梁桥台与主梁的结点构造研究

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Dynamics analysis of main beam stress in container bridge crane

集装箱桥式起重机主梁应力的动力学分析

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The utility model relates to a peanut harvester, comprising a main beam frame, a digging mechanism, a driving mechanism and a conveying mechanism.

一种花生收获机，包括主梁架、挖掘机构、传动机构及输送机构。

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The Application of ANSYS into Optimizing Design of Main Beam in Joist Portal Crane

ANSYS在桁架结构门机主梁优化设计中的应用

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Cantilever construction or full framing is commonly used to construct cable-stayed bridge with cradle. It is the first time for Slide Die Carrier to be used in main beam, GongHe cable-stayed bridge.

斜拉桥一般都利用挂篮采用悬臂法施工或采用满堂支架法施工，而公和斜拉桥首次将滑动模架法应用于斜拉桥的主梁施工中。

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the main beam of the bridge of tongling road of hefei city adopts the vacuum auxiliary mud jacking technique and has achieved good effects and ensured the quality of opening mud jacking.

合肥市铜陵路桥主梁采用真空辅助压浆技术，取得了很好的效果，确保了孔道压浆的质量。

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Nonlinear dynamic analysis of cracked main beam of bridge under moving vehicle

移动车辆荷载作用下含裂纹梁的非线性动力特性分析

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Dynamic Analysis of a Cable-stayed Bridge with Open Section Main Beam

开口截面主梁斜拉桥的动力分析

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