The main girder has the same construction that the boom girder.

主梁具有相同的建设，繁荣梁。

Firstly, analyze the main girder stress in different stage in the paper.

首先，本文分析了桥梁成桥阶段应力。

The design of main girder, main tower and main pier are briefly introduced.

简要介绍主梁、主塔及主墩的设计。

Scraper feeding mechanism is installed below the main girder, feeding way is take for full face.

刮板取料机构安装在主梁下面，取料方式为全端面取料。

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

根据残余应力测试的结果，对起重机主梁的下挠变形进行了分析。

The superstructures of cable-stayed bridge mainly include three parts:tower, main girder and stay cable.

斜拉桥上部结构包括三个主要部分：索塔、主梁和斜拉索。

The results showed that the pier, the top and the bottom plates of the main girder were all under compression.

结果表明：墩身和主梁的顶底板都受压，强度、刚度都满足要求。

There is no exact answer in bridge design regulation for efficient width of main girder for cable stayed bridges.

斜拉桥的桥面结构有效宽度在桥梁设计规范中没有明确给出。

The stress level and distribution of the main girder during construction and service stage at 1/30 model are studied.

借助1∶30的整体模型，研究了施工阶段、成桥阶段全桥主梁的应力水平及分布状况。

Material rake supports in girder on the side of the square, is expected to rake in the tower is located in the main girder.

料耙支撑于主梁侧面的方形轨道上，料耙的塔架设在主梁上。

Due to the influence of topography and the environment, traveling carriage is adopted in main girder construction of this bridge.

红枫湖大桥由于受其所处地形和其周边环境的影响，因此该桥主梁的施工方法采用挂篮施工。

Depending on the outcome of our detailed design, there might be a need for concrete counter-weights connected to the Main girder.

根据详细设计的结果，可能需要在主梁上加混凝土配重。

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

近年来国内电动单梁起重机主梁采用一些新截面型式。

Finally, the calculation of the effective length of the tower and main girder for a certain steel cable-stayed bridge is illustrated.

本文例举了一座钢斜拉桥塔柱、主梁自由长度及其稳定性的计算。

The result shows that to tension the main cable can obviously improve the stress of the main girder of the reverse suspension bridge.

结果表明，张拉主缆索可以显著地改善反吊桥主梁的应力。

Structural internal force is calculated by changing constant load of the main girder, the cable Angle, the length of unsupported deck.

通过改变主梁恒载重量、拉索倾角、无索区长度等结构参数，分析结构参数变化对结构受力的影响。

The cantilever construction method is used and the main girder is divided into several sections and steps of pouring and prestressing.

文章详细叙述了颍河特大桥主桥挂篮进行悬臂浇筑的施工方法和工艺等。

The structure of high web is often adopted in the overhead launching gantrys main girder that are connected by the high-strength bolts.

造桥机主梁一般采用高腹板箱梁结构，主梁之间通过高强螺栓群相互连接。

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

桥式起重机主梁等构件是典型的焊接结构，其主要失效形式是疲劳断裂。

Finally, probably determine the main-beam size of the main girder and end girder in the structure of the metal structure, and it's structure analysis.

最后大概确定了桥架结构中主梁和端梁的主要尺寸，并对其进行了有限元分析。

Further in the light of the actually-divided construction stages of the bridge, the mechanical behavior and deformation conditions of the main girder...

根据该桥实际划分的施工时段，计算桥梁从施工到成桥任一时刻主梁和主塔受力和变形状态，并提出了一些有益的建议。

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，其严重受力件主梁具有较大的强度富裕度，不必更换。

The three dimensional finite element stress analyses of main girder with twin-box cross section used commonly in cable-stayed bridge have been carried out.

本文对斜拉桥双箱单室箱形主梁进行了空间有限元应力分析。

The result of nonlinear analysis shows that the imbalance loads windward on the main girder of the transverse bridge effect little to the structure stability;

非线性分析结果显示，横桥向风载在主梁上的不平衡加载对结构的稳定性影响不大；

This paper analyzes in details the crack causes of the main girder in an engineering, and introduces the strengthening treatment and the construction methods.

文章详细分析了某工程主梁的裂缝原因，并介绍了加固处理及施工方法。

To improve the seismic performance of the structure of the main bridge, the fluid viscous dampers were installed between the main girder and arch rib platform.

为了改善主桥结构的抗震性能，在主梁与肋间平台之间设置了液体粘滞阻尼器。

The length, rigidity and weight of a launching nose have significant influences on the internal forces of incrementally-launched main girder at construction stage.

导梁的长度、刚度及重量在顶推施工阶段对顶推主梁的内力有着重要的影响，其合理配置是全桥顺利顶推的关键。

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的上拱度及预拱曲线的基本原理，介绍了国内外起重机技术标准中规定的上拱度值。

The static characteristics of the single pylon cable-stayed include the internal force and deformation of main girder, reaction force, force and deformation of the main tower.

独塔混凝土斜拉桥的静力特性主要包括主梁受力及变形、支座反力、主塔受力及变形、拉索受力。