查询词典 pier

The formula for lower limit of natural frequency of tapered pier of continuous beam bridge were derived by the combination of Rayleigh and Southwell method. The natural frequency of tapered pier was composed of the sum of frequency of each subsystem consisted in inertia component and deformable component.

采用瑞利法和Southwell频率合成法，将基频表示成各惯性元与复位元所组成的子系统的频率合成，导出了变截面桥墩自振频率下限的计算公式。

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。

The aseismic control for pile-foundation bridges considering soil-structure-interaction was studied. There are two problems were solved:(1) The coefficient matrix is singularity because the elements of rotational degree in mass matrix equal to zero due to the flexiblity of the pier.(2) The iteration of control gain was not convergent because the dumped mass of the beam is very large comparing with that of the pier.

为将Smith[162]方法用于桥梁结构，本文解决了如下两个问题：(1)以弯曲变形为主的桥梁结构，其质量矩阵中相应于转动自由度的元素数值为零，由此导致等效固基模型中的系数矩阵奇异；(2)桥梁结构堆聚到顶部节点的梁体质量很大，由于质量分布不均匀导致控制增益的迭代计算不收敛。

In order to analyze vertical bearing behavior of belled pier foundation, three groups of project examples of belled pier in different engineering geological conditions are chosen.

为分析扩底墩基础的竖向承载性状，本文选取了三组不同工程地质条件下的扩底墩基础工程实例，分别建立了扩底墩墩土接触三维非线性有限元数值模型，可以发现计算与实测结果基本吻合。

Fire system is important to petrochemical pier, in the paper fire situation of Tianjin port petrochemical pier is described, related technical and functional configuration of fire automation system are analyzed dentally in used, And it achieved good results.

消防系统在石化码头具有至关重要的作用。文中描述了天津港石化码头消防系统的现状，对目前正在使用的自动化消防系统的相关技术和功能配置做了详细分析，运作中的自动化消防系统取得了良好效果。

As the reinforced concrete pier columns are often destroyed by earthquake because of the lack of ex- tensibility,glass fiber,aramid fiber and round hoop are used to reinforce the pier column.

口引言大量的试验研究和地震震害表明：在强烈地震作用下，桥梁墩柱的塑性铰区域遭到破坏较多，这是由于墩柱的延性不足所致'。

The second temporary pier was such that its legs straddled the width of the pier.

第二临时墩的立柱间距超过桥墩的宽度。

Finally, travelling wave effect decreases the longitudinal seismic effect of the abutment pier and increases that of the other pier, but it is not noticeable influence on the lateral seismic effect.

第三，行波效应减小了制动墩的纵向地震反应，增大了其它桥墩的纵向地震反应：对桥梁横向地震反应没有影响。

Based on the study achievements of some predecessors,bridge,pier and abutment were simulated by solid element,rail and sleeper were simulated by space beam element,the links of rail,sleeper,bridge,pier and abutment were simulated by spring element,a three-dimensional finite element spatial mechanics model for calculating the rupture force between continuously welded rail and high-speed railway bridge was established.

在吸收前人研究成果的基础上，采用实体单元模拟桥梁及桥梁墩台，采用空间梁单元模拟钢轨及轨枕，采用弹簧单元模拟钢轨、轨枕、桥梁与墩台之间的连接，建立了断轨三维有限元空间力学模型。

A three-dimensional finite element spatial mechanics model for calculating the additional longitudinal force transmission between continuously welded rails and high-speed railway bridges is established by using solid element to simulate bridges as well as pier and abutment,using space beam element to simulate rails,using spring element to simulate the link between bridges and tracks as well as pier and abutment.

采用实体单元模拟桥梁及桥梁墩台、空间梁单元模拟钢轨、弹簧单元模拟桥梁与墩台及轨道之间的连接，建立梁—轨纵向相互作用三维有限元空间力学模型。以丰沙线永定河单线铁路桥梁、秦沈线沙河双线铁路桥梁对其进行计算验证。

This is not an ordinary box, which is used as a background picture of the dialog box, very pretty.

详细说明：这可不是一个一般的对话框，它是用图片作为背景的对话框，非常好看。

Conceal me what I am,and be my aid for such disguise as haply shall become the form of my intent.

遮掩我的身份，帮助我，我的面具将成为我的目的。