桥梁

the intake tower is located in the traffic bridge on the left bank power station gongboxia imports spillway tunnel, bridges with a rib plate for the t-beam, long 20m, bridge steel welded joints has become one of the difficulties of the installation: space narrow, steel-intensive, welding operation difficulties.

进水塔交通桥位于公伯峡电站左岸泄洪洞进口，桥梁为带有肋板的t型梁，长20m，桥梁钢筋接头的焊接成为安装的难点之一：空间狭窄、钢筋密集、焊接操作困难。

To maintain the daily traffic and the safety of the Overpass during underpinning , an automatic monitoring system was installed to observe movements and tiltings.

在施工过程中，为确切维持行车及桥梁结构系统的安全，安装自动监测仪器，以便确实掌握桥梁之现况。

Therefore, this paper analyzes the merits and demerits of the pseudo parallel genetic algorithm and discusses the optimum possibility by using PPGA, and at last, applies it to the optimization of maintenance planning for existing bridges.

为此，分析伪并行遗传算法的优缺点，探讨用伪并行遗传算法(pseudo parallel genetic algorithm，简称PPGA)求最优桥梁维修管理计划的解的可能性，并用于桥梁维修管理计划的优化。

Aimed at the characteristics that design conditions of the foundation structures of offshore long-span-bridges are different from that of common bridges, the partial factors, the target reliability indices and the factors of wind load in different design fields were all analyzed. Then, three levels of target reliability indices which are 1.5, 2.0 and 2.3 respectively, and the corresponding factors of frequent value and quasi-permanent value of live loads based on JCSS model code with JC method were suggested.

针对大型跨海桥梁基础结构正常使用极限状态的设计条件不同于一般桥梁的特点，对各类不同设计领域的设计分项系数、目标可靠度指标及风荷载系数进行了分析和比较；然后以JCSS模式规范为基础，通过可靠度计算的验算点法，经过多次试算，建议了目标可靠度指标分别为1.5、2.0和2.3的三级可靠度水平及相应的可变荷载频遇值系数和准永久值系数。

This type of cranes can be used at the scene of making road, railway and bridge, to irrigate, turn and move bridges, meanwhile can be widely applied to shipbuilding scene along the river or sea where there is strong or more wind.

该系列起重机可用于公路、铁路、桥梁的砼制现场，进行桥梁的浇灌、翻转和搬移。同时也可广泛用于多风且风力较大的沿江、沿海的造船现场。

In regard to cross the river bridge is now formed pontoon, mechanized bridge / trestle, mechanization railway platform, fabricated truss bridge, building bridges and a motorboat, engineering, floating boxes, fabricated steel products such as road series; in the Special Purpose Vehicle and engineering machinery and mechanization of the main pontoon bridge and set up a dedicated delivery vehicles, loading and unloading trucks and other products from the series; in the steel works has developed a road / rail bridge steel structure, metallurgical equipment, various power transmission towers and microwave towers, steel columns, steel poles and other products.

在渡河桥梁方面，现已形成舟桥、机械化桥/栈桥、机械化铁路站台、装配式桁架桥、架桥汽艇、工程浮箱、装配式公路钢桥等产品系列；在专用汽车和工程机械方面主要有舟桥和机械化桥运载及架设专用车、自装卸车等产品系列；在钢结构工程方面开发了公路/铁路桥梁钢结构、冶金设备、各种输变电塔和微波塔、钢柱、钢质电线杆等产品。

The research result in this paper paves way to the further study of small town bridge. It has great value for the promotion of small town bridge development.

本文的研究成果对今后小城镇桥梁的进一步研究奠定了基础，对促进小城镇桥梁发展具有较大的实用价值。

At last, Effective measures of maintenance and management of small town bridge for current common disease of several kinds of small town bridges are put forward.

最后，针对小城镇桥梁各种桥型目前常见的病害，提出了小城镇桥梁有效的养护管理措施。

Because effect of upper bridge to longitudinal vibration of pier could not be neglected,fundamental frequency calculation formulas of pier restrained on its top by bridge beam were derived based on energy method.

针对实际工程中桥梁上部结构对桥墩顺桥方向振动具有不可忽略的约束作用，在能量法的基础上推导出了顶端受桥梁约束的桥墩复合振动基频计算公式。

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。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。