查询词典 truss

For the steel truss girder with abroad \\\"bridge crane bar assembled Law,\\\" the level of technology and equipment as a result of the limited duration of its long, far from being able to meet China\\\s bridge construction project as requested in the analysis of large-span suspension bridge mountain girder erection difficulties under the premise that after the election raised more than Aizhai Bridge \\\"self-cross-cable crane swing shift\\\" program to set up the main truss, which is mountainous suspension bridge girder erecting another major innovation.

对于钢桁梁，用国外的"桥面吊机杆件拼装法"，由于工艺和设备水平所限其工期长，远不能满足中国桥梁建设工期的要求，在分析山区大跨悬索桥主梁架设困难的前提下，经过多方案比选提出矮寨大桥"自行式跨缆吊机荡移"架设主桁方案，这是山区悬索桥主梁架设的又一个重大的创新。

BC 2 The Analysis, design and Construction of Truss Bridge E Understanding the characteristic of truss bridges

E 通过荷载测试，试验斜坡巩固的效果

In view of the commonly used truss bridge in our country railway, the present thesis is the result of the efforts devoted to analysis the vehicle-curved steel truss bridge coupling vibration.

针对我国铁路桥梁中常用的钢桁梁桥，本文深入探讨了曲线钢桁梁桥的车桥耦合，主要做了以下工作： 1。

In this paper, antiseismic behavior of staggered truss system is studied on the base of the review of theoretical study and practical application of staggered truss system at home and abroad.

本文回顾了国内外错列桁架结构体系的理论研究及工程应用，并以此为基础，对错列桁架结构体系的抗震性能进行了初步研究。

In this paper,researches were made on aspace piezoelectric truss.First,based on the piezoelectric theory and FEManalysis and knowledge of active vibration control,theoretical analysis and numerical simulation was carried on.And then,an experiment upon real-time active vibration control of the truss by computer was carried out.

本文以一空间压电桁架结构为切磋工具，应用压电表面、有限元分析和振动自动节制的相干常识，在清楚的表面分析和谋划机仿真的根本上，用尝试验证的方法对空间压电桁架结构的振动进行谋划机及时自动节制。

Based on the fundamental theory of the cable-prestressed steel truss established in paper [1], the inversive iterative perturbation equations which can be used to determine the stiffeness of elements of the prestressed steel truss with elastic supports are put forward by using the principle of matrix perturbation and introducing the concepts of the combined elements and stiffeness factors.

本文基于文献[1]所建立的拉索式预应力钢桁架基本理论，通过引入组合单元和刚度变化因子，利用矩阵摄动原理建立了以结点竖向位移为约束，以确定弹性支承多次张拉预应力钢桁架各类单元刚度为目标的反演摄动迭代方程。

At last, natural frequencies of practical pre-stressed composite space truss are tested with pulsatory method on construction site and its damping ratio is calculated, which gives another important data for engineering design. In addition, through the model experiment of pre-stressed rectangular square pyramid composite space truss, the correctness of characteristics of internal force and the feasibility of tension recovery method are proved.

最后，在工程施工现场用脉动法测试自振频率，并借助于振动衰减曲线和半功率点法计算出预应力组合网架——钢与混凝土的混合结构体系——的阻尼比，此又为工程设计提供了一理论依据；另外，通过正放四角锥预应力组合网架的模型试验，验证了结构内力分布特点的正确性以及张力松弛法的可行性。

The shell roof of steel structure on the site of Jinsha in Chengdu is the truss structure with unstiffen tubular joints ,and the chords of circumferential truss are irregular space curves.

成都金沙遗址大棚钢结构工程为圆钢管相贯节点桁架结构，环桁架弦杆为不规则空间曲线，通过采取弯管与胎具双重控制的方法，使环桁架尺寸得到精确控制；由于施工条件限制，采取了钢丝绳加固、结合已有结构辅助的方法将平面桁架移动到指定位置。

The Warren truss is perhaps the most common truss for both simple and continuous trusses.

该特拉斯也许是最常见的桁架既简单又连续桁架。

In the truss , the truss chord is composed of the outer bar, including the winding lever and the chords, connected chords bar called the ventral ...

在桁架 中，弦杆是组成桁架外围的杆件，包括上弦杆和下弦杆，连接上、下弦杆的杆件叫腹。。。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了