查询词典 truss

Taking the large-scale roof truss structure engineering of a workshop structure as example, its deflection calculation under unequal load, differentiation standard and test method are introduced and several problems needing attention in test are proposed.

以某厂房实体结构中大型屋架结构工程为例，就其非均布荷载作用下挠度计算理论、判别标准及检验方法进行了介绍，提出了试验中应注意的几个问题。

The Gymnasium consists of two parts: competition hall and training hall. The competition hall has a 114m×114m roof composed of bi-directional truss string spatial grid structure, the largest one of its kind in the world.

体育馆分为比赛馆和热身馆两部分，比赛馆区域屋顶跨度为114m×114m，采用了双向张弦空间网格结构，是目前世界上最大的双向张弦结构。

The steel structure of the main body forms the whole giant spatial saddle-shaped steel truss knitting type "the bird nest", the steel structure totally uses the steel quantity is 42,000 tons ,the concretes stand divides into upper, middle and lower three, the stand concrete structure is underground 1 ,on the ground 7 floor of reinforced concrete frame - shear wall structural system.

主体钢结构形成整体的巨型空间马鞍形钢桁架编织式"鸟巢"结构，钢结构总用钢量为4.2万吨，混凝土看台分为上、中、下三层，看台混凝土结构为地下1层，地上7层的钢筋混凝土框架-剪力墙结构体系。

As the papers research object is truss structure, a simple life cycle optimization model for it is established.

由于本文的研究对象为桁架结构，因此建立了其优化设计的简单生命周期模型。

In this article, authors mainly study the synchronous accumulative sliding of the roof truss by many orbits, which has more valuable reference for members with high altitude, wide span or synchronous rotation and sliding.

该文重点从屋面桁架多轨道同步累积方法进行研究，该方法在高空、大跨度、同步旋转滑移方面有较高的参考价值。［关键词］伞形钢结构；多轨道；桁架；同步旋转滑移

Based on the load transmission mechanism of space truss, and referenced theanalysis of test materials, a formula for calculating the bearing capacity of reinforcedconcrete compression strut is introduced. By using the theory of plastic hinge-line, anupper limit solution of bent bearing capacity for four-pile cap, which coincidesprecisely with the practical measurements, is obtained. By utilizing the reaction ofthe soil under cap and by basing on the method of plastic ultimate analysis, an upperlimit solution of punching shear bearing capacity for pile cap is acquired, which. coincides precisely with the practical measurements, and the formula is similar to thecode.A brief discuss on cooperative work of strip beam of foundation and single rankof piles is made. Separately considering the pile-cap and the pile-group, thencoupling their matrix of rigidity, the inner force of pile-cap is solved by the numericalmethod under some reasonable supposition. In comparison with other method, thecalculating results are exact, reliable and convenient in using. The method provides apowerful tQol fOr further analysis and research on this kind of structure.

本文以空间桁架传力机理为基础，结合试验资料分析，推导了钢筋混凝土等边三桩承台受冲切承载力计算公式；根据塑性铰线理论，导得了与试验结果吻合良好的四桩承台受弯承载力的上限解；利用承台底土反力分布，根据塑性极限分析方法，导得了桩基承台受冲切承载力的上限解，在此基础上，通过简化假定，得到与规范公式相类似的承台受冲切承载力实用公式，该公式能方便考虑台底土反力作用，与试验结果的吻合程度比规范公式好；简要讨论了桩基条形承台梁与单排桩的协同工作分析；在一些合理假定的基础上，将承台与群桩分开考虑，分别得到其刚度矩阵后进行耦合，通过数值方法求解承台内力，算例表明，该方法结果准确，使用方便，为该类结构的进一步分析研究及工程设计提供了强有力的工具。

The main reason that this bridge hasn't been built wildspread is lack of profound structural research and majorized design method. This paper connected with the project Kaziwan Bridge in the Three Gorges Reservoir Zigui County is on the base of the subject"the Research of Committed Technic about Prestressed Concrete Chord-Stayed Truss Bridge".The purpose of this paper is to research the static and dynamic characteristic under different loads,define the value of the design parameter and induce the structural characteristic and majorized design method through creating and analysing the spacy finite element model.

本文以实际工程三峡库区秭归县卡子湾大桥为背景，以湖北省交通厅科研立项课题"预应力混凝土斜拉桁架结构关键技术研究"为依托，通过建立分析空间有限元模型，旨在研究斜拉桁架桥在各种工况下的结构静、动力特性，确定设计中关键性参数的合理取值，并从以上分析研究中总结出斜拉桁架桥基本的结构特性与合理的设计方法。

The equations of the train and deck truss girder bridges time varying system were set up by using the principle of total potential energy with stationary value in elastic system dynamics and the "set in-right-position" rule for forming structural matrices.

应用弹性系统动力学总势能不变值原理及形成矩阵的"对号入座"法则，建立列车－桥梁时变系统的整体振动方程。

After studying the curve of the vibration frequencies, which are varying with the changing of the structural parameters such as the rigidity of pier, the rigidity of straining beam, the rigidity of truss, the high of pier, the width of deck, and so on, some rules about the changing of vibration frequencies and the influencing of the structure that vary with the parameters were achieved.

研究了桥墩刚度、横系梁刚度、桁架片刚度、桥墩高度、桥面宽度等参数对结构动力特性的影响，通过对结构的自振振型及频率进行相应分析，得出结构参数变化对结构的横向刚度、竖向刚度、纵向刚度和扭转刚度及其他动力特性的影响程度及规律。

This is the Zhongyuan Oilfield in recent years, the maximum span of the construction of gas pipeline project, a pipeline project, but also that the first swing truss bridge tower.

这是中原油田近年来承建输气管道工程跨径最大的一项管道铺设项目，同时也是国内第一个摇摆塔式桁架桥。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。