查询词典 girder

An experimental and theoretical study on the longitudinal ultimate strength of a box girder is presented in this paper.

本文对箱型梁船体模型作了总纵极限承载能力试验研究，应用基于塑性节点法开发的程序和通用非线性有限元模拟方法对该模型进行了数值计算，获得了与试验较为一致的结果。

First, the Delphi 7. 0 is used to develop the optimum design software for the box girder.

基于以上原因，本文采用了两种方法对箱形梁桥架进行优化设计。

The box girder has been used widely in modern cable-stayed bridges due to its excellent structural performance.

箱梁具有良好的结构性能，在现代斜拉桥中得到广泛应用。

It is a new method to find the displacement function form in analysis of shear lag effect on thin-walled box girder.

为薄壁箱梁的剪力滞效应分析提供了新的思路和方法。

There are several contents of research about PC continuous box girder bridges in a following part.

为此，本文进行以下预应力混凝土箱梁的开裂研究工作。1。

Prestressed concrete continuous box girder bridges are widely used in middle and long span bridges,and will be more widely used.

0前言预应力混凝土连续箱梁桥在中等、大跨径桥梁中得到广泛使用，且有着广阔的应用前景。

New Years Day this year, the system Neiqiu beam field produced three box girder with good results.

在今年新年第一天内邱制梁场生产出了3片箱梁的好成绩。

The 200 meter long new bridge is using the "Balance Cantilever pre-stress Box girder" system of construction.

该项200公尺长的新大桥将会使用'平衡悬臂预应力箱梁'的建设系统。

The paper analyses the nonlinear cracking behavior of reinforced concrete box girder.

对钢筋混凝土箱梁受力开裂破坏的非线性机理进行了研究。

The behavior of a double cell concrete box girder is studied by means of finite element method and experiment.

通过对国内某跨海公铁两用大桥的有限元分析和梁墩固结处缩尺模型试验，研究了单箱双室砼梁在各种荷载下的应力分布以及扭转和剪滞效应等问题，为设计施工提供了依据。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。