查询词典 truss

The rectangular tube plan truss has been used in the roof structure of more and more long-span builds , because the form is novelty and the outline is mellifluence.

矩形管平面桁架由于形式新颖，线条流畅，已越来越多地应用于各类跨度较大场馆的屋盖结构中。

The topologies of a classical Michell truss and three kinds of arch bridges are optimized as numerical examples.

最后，以1个经典Michell桁架和3种形式的拱桥为数值算例，演示了其结构拓扑优化过程。

KL for minor axis shall be the largest distance between incident members which are equal to or greater than one-half the depth of subject member, or the distance between truss panel points.

应该为附加部件之间的最大距离，该距离应该等于或大于主部件深度的一半，或者为构架节点间的距离。

Based on full-probability,a new solving method for probability density of natural frequency of a stochastic truss is proposed.

0引言在许多工程实际中，结构的各种物理、几何参数的随机性是客观存在的且是不能忽视的。

The contents of this course include: the mathematical basis of FEM, the generic solution principles and expressions of elastic mechanics issue, the construction of element and its interpolation function, iso-parametric element and numerical integral, solution of linear equations, some practical issues of FEM modeling, brief introduction to typical commercial FEM packages, FEM for truss, plate blending and shell, and FEM for heat exchange and dynamics.

课程内容主要包括：有限单元法的数学基础、弹性力学问题有限单元法的一般原理和表达格式、单元和插值函数的构造、等参单元和数值积分、线性方程组解法、有限元建模的若干实际问题、典型商用有限元分析软件简介、杆件结构力学问题的有限单元法、平板弯曲问题的有限单元法、一般壳体问题的有限单元法、热传导问题的有限单元法、动力学问题的有限单元法等。

Compared to the results of AMECO hangar and cover sail of palaestra in Harbin Institute of Technology calculated by classical response spectrum method, the multi-support excitation seismic responses of up chord and down chord of space truss near support are larger, the same to middle chord. These positions always are pivotal and weak, so we should attached enough importance to them.

对AMECO维修机库和哈工大体育场罩篷比较分析了多点输入反应谱法与传统反应谱法计算结果的异同，发现多点输入反应谱法由于考虑了结构支座的影响，网架结构支座部分的上下弦和腹杆的地震响应均比一致输入的地震响应大，这些部位是结构设计中的关键部位或薄弱部位，故需要引起足够的重视。

An intelligent paraboloid truss antenna is designed and its dynamic model is presented by means of finite element method.

摘要设计了一个智能抛物面桁架天线，采用有限元方法得到了它的动力学模型。

ISO834 and parametric equation approach are lack of pertinence. The results may be too conservative. The temperature obtained by zone model is low, so that it is not suitable for the performance-based fire protection design on this structure. Field model considers the heterogeneity of environmental temperature, and its result is close to the real fire, so that it is commended to the performance-based fire protection design on steel staggered-truss structure.

国际标准升温曲线和参数化室内升温曲线不考虑火源功率、建筑通风口等因素，缺乏针对性，分析结果偏于保守；区域模型所得温度偏低，不宜用于交错桁架结构的性能化抗火设计；场模型考虑了火源功率及环境温度分布的不均匀性，和实际火灾较接近，计算结果相对较为准确，可用于结构的性能化防火设计。

Based on failure model of brick masonry walls and truss bar model of fiber reinforced polymer, the formulas of shear capacity of brick masonry wall with pilaster strengthened with GFRP are established, which agree well with the experimental results.

基于未加固墙体的剪摩和剪压破坏模型和纤维复合材料的桁架受力模型，推导出在不同破坏形态下，GFRP加固带壁柱砖墙的抗震抗剪承载力理论计算公式。利用公式所得的计算结果与试验结果吻合。

Based on full-probability, a new solving method for probability density of natural frequency of a stochastic truss is proposed.

对随机桁架固有频率的概率密度函数提出了一种求解方法。

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。