查询词典 box girder

At the same time,this paper conclude that the deviation limit standard of each testing project for the box double-bridge crane,and present the new method that processing crane main girder deflection of the box double-bridge crane by straining wire rope,the new method that preventing and eliminating the box double-bridge crane running defect by wheel track circular measure.

总结出：箱形双梁桥式起重机运行缺陷各检测项目的极限偏差标准。获得了：处理箱形双梁桥式起重机主梁挠度的新方法—拉钢丝绳法；预防和消除箱形双梁桥式起重机运行缺陷的新方法—圆弧轮、轨法。

It will consume lots of CPU time and hard disk space of computer in calculating the ultimate torsional moment of a hull girder by using FEM, especially for the complex structure. The ultimate torsional moment of box thin-walled beam is analyzed by using finite element method. The influences of different characteristic parameters on the ultimate torsional strength are extensively studied.

在船体梁扭转极限承载能力的有限元计算中，对於比较大而且形状复杂的结构，需要采用足够多的单元数来模拟其真实的破坏模态，因而会耗费大量的CPU计算时间和硬盘空间，并且往往因为单元数太多而使数值计算变得不现实。

The precasting of concrete box girders with short-line match method is applicable to a bridge with considerable numbers of similar spans,girder segments and multiple variations of the girder segment types.

短线法预制箱梁适应于相同孔跨的数量较大、梁段预制数量较大、节段类型变化较多的工程。

To meet the structure and launch requirements of deep autonomous attack mine, a technique of uncapping system of box ring-like pressure mine girder for sail mine is presented.

大深度自主攻击水雷技术代表着现代水雷发展的必然趋势，为了适应这类水雷结构特点和发射要求，提出了一种航行雷箱体环形压雷梁开盖系统技术。

Because the height of box girder is limited, vertical prestressed bar is short, so when control stress of prestressing is attained, elongation of thick high strength thread reinforcing bar is limited.

这是由于箱梁的高度有限，竖向预应力筋的长度都比较短，因而在达到张拉控制应力时高强精轧螺纹粗钢筋的伸长量有限。

The detailed process of model updating and validating is discussed in terms of reduced scale specimen of the steel box girder in longitudinal stiffening truss of a long span bridge.

以实验室的大跨桥梁结构钢箱梁纵向加劲桁架缩尺试样为研究平台，具体讨论了多尺度模型修正和验证的实施过程。

Bridge construction ; prestressed concrete ; continuous box girder ; bridge monitoring ; slab crack

桥梁施工；预应力混凝土；连续箱梁桥；桥梁监测；腹板裂缝

The two-dimensional transient finite element analysis and thermal responsecalculation were carried out for prestressed concrete box girder with irregular crosssection. Various boundary conditions were discussed in detail.

在有限单元分析中，首次推导出混合边界单元的计算公式，从而将第二类边界条件和第三类边界条件统一起来，以第三类边界条件的形式施加到单元边界上。

With the increasing of long span prestressed concrete bridge adopting cantilever erection construction method, more and more attention are paid to the correlative geometry control theory and practice of long span continuous box girder.

随着采用悬臂拼装施工的大跨度预应力混凝土梁桥的不断增多，与其相关的大跨度连续箱梁悬臂拼装施工线形控制理论和实践日益受到关注。

In 1970, steel box-girder bridges in Milford Haven, Wales, and in Melbourne, Australia, failed spontaneously while under construction.

1970年，威尔士米尔福德港和澳大利亚墨尔本的箱形钢梁大桥在建筑过程中自然坍塌。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新