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环形滑道
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  “环形滑道”译为未确定词的双语例句
     The plane rotation axis system adopted for the bridge is composed of plane rotation axis,inner and outer safety legs and plane ring slideway.
     大桥采用的平面转动轴心体系由平面转动轴心、内外保险腿和平面环形滑道组成。
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  相似匹配句对
     Ring Shaped Oscillator
     环形振子
短句来源
     Am asymmetric ring laser
     不对称的环形激光器
短句来源
     Equation of Friction Coefficient for Plastic Slideway
     塑料滑道的摩擦系数方程
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     The plane rotation axis system adopted for the bridge is composed of plane rotation axis,inner and outer safety legs and plane ring slideway.
     大桥采用的平面转动轴心体系由平面转动轴心、内外保险腿和平面环形滑道组成。
短句来源
     RESEARCH AND APPLICATION OF THE HEAT-RESISTING SKID
     耐热滑道的研究与应用
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Arch bridges have high load-bearing capacity, good durability and graceful shapes, But their application is limited due to high construction cost, In order to render a simple and convenient erection with less equipments and steel centerings, the "swing-body" method was tried out in 1976, The arch ring was divided into two half-spans and, utilizing the local topographical conditions, the hollow arch ribs (or arch trusses) were prefabricated on the two opposite banks, Using the buckleanchor system formed by the...

Arch bridges have high load-bearing capacity, good durability and graceful shapes, But their application is limited due to high construction cost, In order to render a simple and convenient erection with less equipments and steel centerings, the "swing-body" method was tried out in 1976, The arch ring was divided into two half-spans and, utilizing the local topographical conditions, the hollow arch ribs (or arch trusses) were prefabricated on the two opposite banks, Using the buckleanchor system formed by the structure of arch bridge itself to-gether with steel construction units and with the aid of preinstalled circular slides made of ptfe, or of spherical hinges (lubricated by molybdenum disulfide)and steel roller wheels plus circular track plates, the two half-spans of arch ring were swung around to join with each other by winches, Through a number of actual constructions and experimental studies, the "swing-body" method for arch bridge construction has been proved to be economical, speedy and safe, Based on engineering practice, a brief account about the basic ways, design essentials, experimental studies and technic-economical comparisons of the above method is given in this paper.

拱桥承载力大,耐久性好,造型优美。但由于施工费用昂贵,降低了拱桥的竞争能力。 为使拱桥架设简便、设备精简,节省施工用钢量,于一九七六年曾试用“拱桥转体施工”的方法,将拱网分为两个半跨,分别于两岸利用地形预制拱箱(或拱桁),利用结构本身和工具结构组成扣、锚体系,借助于预设的聚四氟乙烯环形滑道(或用二硫化钼作润滑剂的球面铰加钢轮环道),用卷扬机牵引,将拱体旋转合拢。 通过一些施工实践与试验研究,证明“拱桥转体施工”具有经济、快速,安全等优点。 本文对拱桥转体施工的基本方法,设计要点,试验研究,及技术经济比较,结合工程实践作了简明扼要的论述。

Based on the actual construction condition of Diaozhongyan extra-long bridge,improved plane rotation technology is adopted in the joining of the arch bridge with rigidity steel skeleton.Then the skeleton acts as the bracket to proceed with the construction of arch upper-structure.The plane rotation axis system adopted for the bridge is composed of plane rotation axis,inner and outer safety legs and plane ring slideway.Based on the actual structure of the bridge,space finite element model is established.According...

Based on the actual construction condition of Diaozhongyan extra-long bridge,improved plane rotation technology is adopted in the joining of the arch bridge with rigidity steel skeleton.Then the skeleton acts as the bracket to proceed with the construction of arch upper-structure.The plane rotation axis system adopted for the bridge is composed of plane rotation axis,inner and outer safety legs and plane ring slideway.Based on the actual structure of the bridge,space finite element model is established.According to the practical construction and loading sequence of bridge structure,the stress and deformation of structure are calculated by means of finite element analysis software ANASYS.During the actual process of construction,stress monitoring is done by the contrast analysis between the practically measured values and the calculated values of the stress and deformation on fixed position at each construction phase so as to guarantee the actual stress and deformation of the structure within reasonable control range.The measured value basically agrees well with calculated value,which indicates that structure stress and deformation are well controlled during construction.Construction results indicate that the improved plane rotation technology is suitable for the construction of such arch bridge with rigidity steel skeleton.

结合吊钟岩特大桥实际施工情况,对劲性钢骨架拱桥采用改进的平面转体合拢施工技术,再以骨架为支架进行拱上结构施工。大桥采用的平面转动轴心体系由平面转动轴心、内外保险腿和平面环形滑道组成。根据大桥实际结构,建立空间有限元模型,采用有限元分析软件ANSYS,按照桥梁结构实际施工加载顺序,进行结构应力和变形计算。在实际施工过程中,将大桥一定位置各阶段的应力和变形实际测量值与计算值对比分析,进行应力监控,使实际结构应力和变形均在合理控制范围内。实测值与计算值基本吻合,说明结构应力及变形在施工过程中得到了良好的控制。施工结果表明,平面转体施工技术对劲性骨架拱桥具有良好的适用性。

 
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