查询词典 forward bridge

According to the analyses of forming causation of air bladder and sand grain at concrete surface of railroad bridge, this paper studies it from five aspects of bridge prefabricate craftwork, and puts forward relevant prevention technique measure.

通过对铁路桥梁混凝土表面气泡和砂纹形成原因的分析，从桥梁预制工艺5个方面进行试验研究，并提出了相应的防治技术措施。

2In view of the shortcoming of current analytical calculation method in solving inclined hanger cable suspension bridge,improved segmental catenary curve was put forward and nonlinear formulation group to fix on configuration of main cable of inclined hanger cable suspension bridge was deducd.Further more,a more efficient and simple FEM calculation method was obtained through establishing parameter calculation model and dynamic forecast.

2针对现有的计算悬索桥成桥主缆线形的解析计算方法在计算斜吊杆悬索桥方面存在的缺陷，提出了改进的分段悬链线计算方法，并导出了确定斜吊杆悬索桥主缆成桥线形的非线性方程组；然后针对原有的非线性有限元法计算复杂、计算效率低下的问题，采用基于ANSYS的APDL语言通过建立参数化的计算模型，并利用动态预测的方法总结出了一种效率高、操作简单的有限元计算方法。

A method which can directly compute the bearing capacity of the section according to parameter equation by Green Formula is put forward. bridge ; bearing capacity of normal section ; curvilinear integral

鉴于以上的缺点，本文提出一种用格林公式根据几何元素的参数方程直接计算截面承载能力的方法。1 桥梁正截面极限承载能力计算理论如图 1所示的空心板截面有一个外环和

At the top of the bridge, imagine the shape of the animal water, a place people wish the bridge from flood, live without the good wishes of the border; on the steeplechase pillar and look forward to all kinds of carved dragon, Shoumian, floriation, such as bamboo, Particularly in the areas of the most beautiful dragon.

大桥顶部，塑造出想象中的吸水兽，寄托了人们祝福大桥不受水害、长存无疆的良好愿望；栏板上和望柱上雕刻着各式蛟龙、兽面、花饰、竹节等，其中尤以蛟龙最为精美。

Our country firstly put forward such design principle of Qinghai-Tibet railway engineering as "lower temperature actively, reduce the heat into the subsoil, and assure the heat stability of frozen earth for the quality stability of construction", creatively adopt such corresponding measures of frozen earth construction problem as: for the poor frozen earth developing section, line should avoid as possible;for the geology of ice at high temperature and unstable frozen earth zone, the method of bridge instead of subgrade shall be adopted;in subgradeconstruction, such facilities as heat stick, rubble ventilation subgrade , rubble ventilation berm, ventilation pipe subgrade and laying heat preservation board etc shall be adopted to raise the stability of frozen earth subgrade;during the excavation of bridge, culvert , foundation pit and scouring prevention trough, creatively adopt single-tooth knapper and solve the problem of frozen earth excavation;during the construction of bridge and culvert, durable concrete and three-step maintenance method are adopted to assure the outside and inside beauty of structure.

我国在世界上首次提出"主动降温、减少传入地基土的热量、保证多年冻土的热稳定性，从而保证修筑在上面的工程质量的稳定性"的青藏铁路工程设计原则，创造性地采取了解决冻土施工难题的相应对策：对于不良冻土现象发育地段、线路尽量绕避；对于高温极不稳定冻土区的高含冰量地质，采取"以桥代路"的办法；在路基施工中采用了热棒、片石通风路基、片石通风护道、通风管路基、铺设保温板等多项设施，提高冻土路基的稳定性；在桥涵基坑、挡水埝基槽开挖中，创造性地应用了单齿破碎器，解决了冻土开挖难题；在桥涵工程施工中，采用了耐久性混凝土，采用了三步养生法，保证了结构物内实外美。

In this paper, basted on the sum-up and investigation of simulation calculation of long-span bridge construction in nation and international, the detailed approach of imitated calculation of long-span CFST arch bridge is given out, and the reason why the general backward analysis is not suitable for the application of the rib-hoisting of CFST arch bridge is analyzed. And an applied method for forward analysis based on iterative theory is put forward.

本论文通过对国内外桥梁施工仿真计算成果的总结和研究，给出了大跨度钢管混凝土拱桥仿真计算的具体步骤，分析了一般的倒退仿真计算方法不适合应用于钢管混凝土拱桥吊装的原因，并为此提出了基于迭代理论的前进分析实用方法。

Basing on the statistic datum existed of bridge deck pavements, analyze the main failure modes and its main causes to damage on different styles of bridge, at the same time, through the big calculation software ,establish the space models to simulate the course of mechanics of bridge deck pavements, analyze the main factors which affect the bridge deck pavement"s mechanics and the relations between them; according to the atmospheric circulation circumstances of bridge deck pavements, take the statistic datum of using life of prefabricated T-beam、box girders and casting girder in region of HUA-NAN as examples to returning analysis ,establishing the life prediction model of this style bridges; associating "the Method of Estimating to Life Cycle Costing,bring forward this method to take a evaluation of economy on bridge deck pavements, insure the life cycle costing reasonable; giving some tactics on the design of bridge deck pavements.

以既有桥梁的桥面铺装层使用现状统计资料为基础，分析了各种类型桥面铺装层的主要破坏形式及其主要损伤原因，同时利用结构分析软件，对桥面铺装层建立空间模型模拟其受力作用过程，分析影响桥面铺装层受力大小的主要因素以及各因素与铺装层受力大小之间的关系；按照桥面铺装层所处环境的不同，以华南地区预制T、箱梁和现浇梁的桥面铺装层正常使用寿命统计数据为例，通过回归分析建立该类型桥面铺装层的正常使用寿命预测模型；利用寿命周期费用评价方法，对特定铺装层的设计方案某一参数的变化所带来的经济效益进行评价；给出桥面铺装层设计构造建议。

The theory and methods of CAD for three-unit fixed partial dental prosthesis crown bridge are studied, which is based on the design technology of single dental prosthesis crown bridge design. An integrated route of the design of crown bridge is put forward.

本文在基于特征的义齿单冠设计技术基础上，针对三单元固定冠桥的计算机辅助设计理论与方法进行了探索，形成了一套完整的冠桥设计路线。

In this paper,based on consulation to tens of bridge experts and a vast amount of investigation and study,expert knowledge on bridge assessment is obtained. A new concept-damage value is put forward to measure bridge damage,and fuzzy theory is used to create comprehensive fuzzy system to assess bridge service property. The set up of an expert system for bridge assessment is tried as well.

本文在对数10位桥梁专家的咨询以及大量的调查研究基础之上，收集整理了桥梁评估专家知识，提出用损伤度来度量桥梁结构或构件的损伤程度，并采用模糊数学原理，建立了桥梁使用性能的模糊综合评估体系，并探索建立了桥梁评估的专家系统。

Comparing the development process of the Occident bridge aesthetics with the modern and current history of the architecture abroad, it can be seen that the influences of the architecture trends have played an important role that cannot be neglected at each stage of the development of the bridge aesthetics and have pushed forward the development of the bridge aesthetics in varying degrees.

将欧美桥梁美学的发展进程与国外近、现代建筑史相对照，可以发现在桥梁美学发展的各个阶段中，建筑思潮的影响起着不容忽视的作用，并在不同程度上促进着桥梁美学的发展。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。