查询词典 arch

As a structure that is compressed and bended, with increasing of the span, length slender ratio and carrying load of arch increase, lateral rigidity and width span ratio of arch ring minish relatively. During constructing and bring to bear, lateral stability becomes especially severity and a control factor of arch bridge design.

拱作为压弯结构，随着跨径的增大，杆件的长细比及所承受的荷载也随之增大，拱圈横向刚度、宽跨比相对减小，在施工阶段及使用阶段横向稳定问题特别突出，常常成为拱桥设计的控制因素。

On the project background of Rongzhou Bridge, a half through CFST arch bridge in Yibin crossing Jinshajiang, the optimizing theory is applied to the calculation of the stayed-buckle-cable forces in the process of craning construction of the steel-tube arch segment and construction error adjusting. The calculated optimum cable forces with high precision can guarantee the inner forces and the structuredeformation in safe state, and ensure the line shape of the arch ring in accordance with design requirements as well.

以宜宾金沙江戎州大桥(主跨260m的中承式钢管混凝土拱桥)为工程背景，将优化理论引入到钢管混凝土拱桥拱肋架设和扣索索力调整计算，这样计算出的索力精度较高，既能确保结构的受力状态和变形始终处在安全范围内，又能保证架设和调整后的拱肋线形符合设计期望。

Oblique-against arch bridge ; bowstring arch bridge ; steel-pipe arch

斜靠式拱桥；系杆拱桥；钢管拱

In the fall of the arch, a block of four tied for the holes not only increase the flow channel, to save stone, to reduce the weight of the deck, but also conducive to the small arch of the great arch of the passive pressure, and enhance the stability of the deck.

在大拱的两肩，砌了四个并列的小孔，既增大流水通道，节省石料，减轻桥身重量，又利于小拱对大拱的被动压力，增强了桥身的稳定性。

"In the earliest phase, two or three narrow, arch ed windows were placed close together under a single large arch , with the section of wall between the small and large arch es pierced by a circular or four-lobed opening."

最初采用花格窗时，是在一个大拱下面把两三扇狭长的拱窗紧密组合在一起，大小拱之间的墙面上有空心的圆圈或四条裂缝。

The dimensions of dental arch in Chinese were very similar to Japanese, South and Central American Indians, but wider and shorter than Central and South American Indians.(5) The superimposition of dental arch form showed that the four races of Mongoloids had similar ovoid dental arch forms.

但中美印第安人之齿列弓长径比国人者长，南美印第安人之齿列弓宽、长径则比国人者更长；(5)检讨四种人种的齿列弓形态的重叠影像，可发现四种蒙古人种的齿列弓形态都极为酷似，呈现弧度较大的椭圆形。

Combined with experience in the past,it introduces the constructing methods of slanting stone arch bridge from aspects including basement process,basic construction,pier construction,arch support and arch circle construction.

结合以往的经验，从地基处理、基础施工、墩台施工、拱架、拱圈施工等多方面就斜交石拱桥的施工方法进行了详细介绍，并通过工程实例进行了说明，可供类似工程参考。

A finite element numerical model for arch dam-gravity pier-foundation system was established to evaluate the effect of high gravity piers on the stress, deformation and anti-sliding stability of Sizhai arch dam, taking the following factors into account, such as the possible elastoplastic deformation of foundation rocks and the nonlinear interaction between the interfaces of gravity pier-dam foundation, the joint surfaces beneath the right bank, and the interfaces of arch dam-gravity pier.

摘要为评价高重力墩对四寨拱坝的应力变形和抗滑安全的影响，建立了拱坝－重力墩－地基系统的有限元数值模型，其中考虑重力墩－基础、右岸夹层和拱坝－重力墩等交界面的非线性相互作用，以及基岩材料的弹塑性变形行为。

By analysis and comparison on the design of two beam-arch combination system bridges, this paper reflects the decisive influence of stiffness ratios of arch to beam in this kind of bridge design directly, and analyzes different design methods of these two bridge on arch rib tie bolt, and other key points for these two kinds of bindges.

本文通过对两座拱梁组合体系桥梁设计的比较和分析，直观地反映了此类桥梁设计中拱梁刚度比的决定性影响；同时分析了两桥在拱肋、系杆等细节的不同设计方法。

Methods 32 non-extraction cases treated by arch expansion with straight Ni-Ti wire was selected and upper and lower arch width and the position in A-point and B-point before and after the arch expansion were measured respectively.

目的 探讨在直钛镍丝扩弓中，采用锡球与拉钩相结扎的方法避免扩弓分力引起前牙唇向移动的效应。

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