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双语推荐：钢箱梁

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以某工程项目钢箱梁铺装厚度调整为背景,分析桥面铺装调整后的钢箱梁横隔板在汽车荷载轮压作用下的应力状况,发现钢箱梁的二期恒载变化对钢箱梁的局部应力影响较大,已经不能满足结构的正常使用要求。因此对已加工成型的钢箱梁横隔板进行加固,经过分析,加固后的横隔板应力满足使用要求,其分析结果与处理方法可供同类钢箱梁横隔板设计参考。
on the background of the change about the thickness of steel-box girder’s pavement, according to analyze the stress of the cross diaphragm which acted by the vehicle load wheel press,indi-cate that pavement change have a big influence on the partial stress of the cross diaphragm,conclude that the cross diaphragm can’t meet the normal.The cross diaphragm which have been molding was rein-forced,the stress analysis about the cross diaphragm indicate that the cross diaphragm work well.The conclusions and measures can be used in the design for the similar bridge.

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钢箱梁结构因其自身的特性在市政工程建设得到大量运用,钢箱梁吊装施工中空间就位及空形态的控制问题较为突出,其中带纵坡的弧形钢箱梁通过旋转结构找横坡就使得钢箱梁在施工过程中整体空间形态要有控制技术难度更高,极易造成钢箱梁支座托空。该文结合工程实例,就有纵坡且旋转结构找横坡弧形钢箱梁吊装后产生支座托空的处理措施进行论述。
Steel box girder structure is widely applied nowadays for its virtues, but the controlling problems in space location and spatial form in its con-struction are severe, and the finding of cross slope through rotating structure by arc steel box girder with longitudinal slope renders controlling technology of steel box girder over spatial form harder, easily causing empty bearing of steel box girder. The treatment measures for such problem are presented in de-tail.

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根据大榭第二大桥钢箱梁的结构特点，介绍了单索面斜拉桥钢箱梁板单元制作、总拼组装、焊接等关键制造技术，以及钢箱梁制造过程中的质量控制措施，为今后同类钢箱梁制造提供了技术参考。
Aimed at the structural features of the steel box girder for the Daxie 2nd Bridge,this paper introduces the key fabrication technique of steel box girder for single plane cable-stayed bridge,such as steel plate fabrication,general assembly and welding,and the quality control meas-ures in the process of manufacturing,which provide technique reference for the similar steel box girder fabrication in the future.

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陆域范围钢箱梁安装难度是如何将钢箱梁运送到安装位置,对受到高潮差影响的河段钢箱梁滑移上岸方案的制订和调整进行了简单阐述,并细化了钢箱梁滑移上岸的具体步骤,同时针对实施过程中存在的不足提出了相应解决和优化处理措施,最终该项目安全、顺利滑移上岸24榀钢箱梁,滑移上岸的措施切实可行。
The range of steel box girder landing installation difficulty is how box girder is delivered to the installation position, the climax of the formulation and adjustment by differential effects of slip landing scheme of steel box girder is described, and refinement of the specific steps of steel slip landing, and this paper proposes the corresponding solution and optimization measures to solve the problems existing in the implementation process. Finally,the slip landing process of 24 steel box girders is safe and smooth.

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应用有限元计算程序，研究横隔板间距及偏心集中荷载作用位置对悬臂钢箱梁受力性能的影响规律。研究结果表明，截面畸变效应对薄壁钢箱梁纵向正应力的影响较大，分析无横隔板的薄壁钢箱梁受力性能时，截面畸变效应不能忽略；分析布置横隔板的薄壁钢箱梁受力性能时，应重点分析扭转荷载作用下横隔板对薄壁钢箱梁受力性能的影响。最后，提出了偏心集中荷载作用下悬臂钢箱梁受力性能的简化分析方法。
T he effects of diaphragm span and place of eccentrically concentrated load on the me-chanical behavior of steel cantilever box beams are conducted by self programming .The numeri-cal results show that the effect of section distortion on the longitudinal normal stress of thin-walled steel box column is obvious .When the mechanical behavior of thin-walled steel box col-umn without diaphragms is investigated ,the effect of section distortion is not negligible .It is al-so found that while the mechanical behavior of thin-walled steel box column with diaphragms is analyzed ,the effects of diaphragms on the mechanical behavior of steel cantilever box beams un-der torsional force should be extremely discussed .Finally ,a simplified analysis method is pro-posed to study the mechanical behavior of steel cantilever box beams under eccentrically concen-trated load .

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简要介绍了某小型市政桥梁的概况及结构特点，针对该桥钢箱梁的施工难点进行了分析，阐述了小型钢箱梁施工技术，重点对钢箱梁的组装、焊接工艺以及现场安装技术进行了详细的介绍，解决了小型钢箱梁的制造及安装难题。
Brief overview and structural characteristics of a small municipal bridges,steel box girder bridge for construction difficulties were ana-lyzed,elaborated a small steel box girder construction technology,focusing on the steel box girder assembly,welding process technology and on-site installation a detailed introduction to solve the small steel box girder fabrication and installation problems.

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文章结合后围寨立交钢箱梁工程实例，展开了对大跨度钢箱梁立交桥施工关键技术的分析工作，并对工程概况进行了简要分析。根据施工难点，确定了合理的施工思路，重点研究了在钢箱梁焊接、涂装，以及钢箱梁吊装方面的技术问题。
The article, combining the steel box girder of ove-rpass engineering of Hou weizhai, analyzed the key construc-tion technology of large span steel box girder overpass, and the general situation of the project are briefly analyzed. According to the construction difficulties, the author determined the rat-ional thinking of construction, focusing on the technical probl-ems in welding and painting of the steel box girder, and ins-tal ation of the steel box girder.

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针对青州航道桥边跨和连接线深水区非通航孔桥，采用了大节段整体吊装架设方法，驳船海上运输梁段数量多、超长、超重，且途经航区海况复杂，钢箱梁及附属支撑、限位结构局部受力现象突出。文章采用中国船级社（CSS ）规则对复杂海况下钢箱梁船运三向受力进行了分析，考虑施工可行性进而确定支撑、限位装置的排布和构造，对工字梁船运支撑结构进行了优化设计；分析了大节段船运过程中支撑、限位装置和钢箱梁船船运期间的局部受力和稳定性，确保钢箱梁和支撑、限位构造受力处于可控状态。计算结果表明，在不采取钢箱梁内部加劲的前提下，通过合理布置、设计局部支撑限位构造，钢箱梁和支撑结构在复杂海况环境下驳船运输期间的强度、变形和局部稳定性满足要求。研究结果可为今后大节段钢箱梁海上运输提供有益参考。
The overall lifting erection method is used in the construction of the side span of Qingzhou channel bridge and the non‐navigation bridge in deep water district and a large number of segments of steel box girder are needed to transport by barge to construction site which are super long and overweighted ,and the navigation area has complex conditions ,and all these lead to the local stress of steel box girder and limit structures in an unfa‐vorable state. In order to analyze the force state of box girder under the complex sea conditions ,China Classifica‐tion Society(CSS) rules are used to calculate the three‐direction force state and the arrangement of support and limit devices is determined considering the construction feasibility. Further ,the optimized design of the vertical support structure is carried out and the intensity and stability of support and limit devices are also calculated to ensure the force controllable. The results show that without taking internal sti

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结合灵丘至山阴高速公路大运枢纽跨大运高速公路钢箱梁实际施工,探讨了钢箱梁在跨线高速公路施工注意事项,同时对钢箱梁安装准备工作、运输、吊装及交通管制方案进行了叙述,从而为同类工程积累了经验。
Combining with the factual construction of the steel box girder along Lingqiu-Shanyin expressway of Datong-Yuncheng hub across Datong-Yuncheng expressway,the paper explores the precautions of the steel box girder in line-cross construction,and indicates the installation preparation,the transportation,hoisting and the traffic control of the steel box girder,so as to accumulate the experience for similar projects.

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通过2个两跨部分充填混凝土钢箱连续梁和1个钢箱连续梁模型在两个集中力作用下的试验，研究其变形发展及破坏过程。试验结果表明，部分充填混凝土钢箱连续梁模型与钢箱连续梁模型相比，弹性承载能力提高45％，极限承载力提高90％，延性增大8倍。利用ANSYS对部分充填混凝土钢箱连续梁受力行为进行了非线性有限元分析，分析结果与试验实测结果吻合良好，验证了计算模型的有效性，利用有限元模型参数分析表明增大受拉区翼板厚度对承载力效果最优。
In the tests of 2 two-span continuous concrete partially filled steel box beams (CCPFSBB) and a two-span continuous steel box beam (CSBB) subjected two forces, the deformation and failure pattern of the beams were studied.The results showed that the elastic loading capacity and ultimate loading capacity of CCPFSBB model were 45%and 90%larger than those of CSBB model respectively, and the ductility also increased about 8 times.Non-linear FEA of the mechanical behavior of the CCPFSBB was conducted with ANSYS.The an-alytic results agreed with the test results, and the analytic FEM model was verified.The par-ametric analysis was carried out using the FEA model.The results showed that the optimal effect on improving the capacity was increasing the flange plate thickness.

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