查询词典 tubular girder

But quite amount of cracks are found during the construction and operation in the PC box girder bridges, especially cracks in the anchorage zone and the inclined cracks in the box girder webs of the bridges, and some longitudinal cracks appear indeed in the deadweight phases,Moreover the variant Pre-stressed strand arrangements produce great influence for the inner inforce of the b

但目前在用预应力混凝土箱形梁的施工和运营过程中出现相当数量裂缝病害，尤其是箱梁锚固区裂缝、腹板斜裂缝，顶板纵向裂缝，有的甚至在未承受活载的自重阶段就出现裂缝，而不同的预应力布束方式对箱梁内力有很大的影响。

When vertical distance at mid-span between tendons and neutral axis of the girder is increased, the stiffness of the girder is also increased.

钢索在跨中的垂度越大对钢箱梁刚度的提高越大。

As high speed development of the traffic industry, the need for long span pre-stressed concrete continuous curved box-girder bridges in construction of highways, urban overhead crossings and viaducts is bigger and bigger. But the existing computing method cant satisfy the precision demand hi analysing long span curved box-girder bridges.

随着交通运输事业的蓬勃发展，由于高速公路、城市立交桥和高架桥的日益增多，大跨度曲线箱梁桥的应用需求越来越大，而现有的简化计算方法对于大跨度曲线箱梁桥的计算分析尚存在一定的困难。

Against the curved box girder bridges in highway bridges and urban viaducts,the curved grillage model of the multi-cells curved box girder is built in terms of the shear-flexible grillage method,and the analysis for the vehicle-bridge interaction is performed.

针对公路和城市立交中的曲线箱梁桥，基于剪力柔性梁格法建立了曲线箱梁的梁格模型，进行了车桥相互作用分析。

In fact, multi-box girder bridge is different from T-beam multi-girder bridge. First, transverse distribution of load is influenced quite with the closed box beam; Secondly, as a simply-supported—continuous system, its 3-d structure behavior is remarkable, especially for a continuous skew bridge.

事实上，多箱式桥梁与T梁桥有很大的不同，其一是作为主要承重构件的梁为闭口箱梁，对荷载的横向分布有较大的影响，其二是采用先简支后连续的体系及桥面板的现浇湿接缝连接，其空间受力特征非常显著，对于具有斜交角度的桥梁更是如此。

Through analyzing Gaya prefabricated box girder bridge, a comprehensive summary of production from the box girder pedestal, vertical mold, concrete pouring, to the tensioned prestressed steel beams, grouting, sealing anchor the whole process of construction technology, providing the corresponding construction methods, concrete mix, vibrated time, and prestressed tension and other technical data.

通过对嘎呀河大桥箱梁的预制，全面总结了从箱梁台座制作，立模，混凝土浇筑，到预应力钢束张拉、灌浆、封锚全过程的施工工艺，提供了相应的施工方法、混凝土配合比、振捣时间和预应力张拉等各种技术数据。

Through analyzing Gaya prefabricated box girder bridge, a comprehensive summary of production from the box girder pedestal, vertical mold, concrete pouring, to the tensioned prestressed steel beams, grouting, sealing anchor the whole process of construction technology, providing the corresponding construction methods, concrete mix, vibrated time, and prestressed tension and other technical data.

预应力混凝土箱梁预制施工技术及质量控制，工程建筑论文，工学论文通过对嘎呀河大桥箱梁的预制，全面了从箱梁台座制作，立模，混凝土浇筑，到预应力钢束张拉、灌浆、封锚全过程的施工工艺，提供了相应的施工方法、混凝土配合比、振捣时间和预应力张拉等各种技术数据。

Since temperature stress in plate wall box girder is largely produced for changes of temperature at the period of construction, therefore, it is needed to research temperature stresses in plate wall box girder.

由于在施工过程中厚壁混凝土箱梁产生的温度应力比较大，因此有必要对厚壁混凝土箱梁的温度应力进行分析研究。

Large-scale cast-in-place prestressed concrete hollow plate girder bridge fewer domestic applications, this article on the domestic hollow design of plate girder bridge with a reference application and engineering practical value.

大型现浇预应力混凝土空心板梁桥在国内应用较少，本文对国内空心板梁桥的设计应用具有一定的参考和工程实用价值。

Due to their simplicity in fabrication and excellent strength to weight ratio, stiffened steel plate are also widely used for construction of land-based structures such as box girder and plate girder bridges.

由于制作简单且有良好的强度重量比，加筋板也广泛应用于制造陆基结构物如箱梁和板梁桥等。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"