桥梁

As a key working procedure in concrete-filled steel tube arch bridge,the quality of manufacturing and precasting of steel tube arch rib should be paid much attention,and should be manufactured in factories do the best we can if conditions permitted.

钢管拱肋加工预制作为钢管混凝土拱桥施工中的一道关键工序，其加工预制的质量应引起足够重视，条件许可的尽量采用在工厂进行，而像太平湖大桥这样大型的桥梁和钢结构加工，在现场完成的并不多见，因此它的现场预制技术可供今后类似的桥梁施工提供参考。

We used our bombs and rockets on the vehicles and the bridge then set up several strafing passes. There were burning vehicles and some damage to the bridge when we left about 20 minutes.

我们用炸弹和火箭弹攻击车辆和桥梁，施加了几次低空轰炸扫射。20分钟后我们撤出，留下燃烧的车辆，桥梁也给毁得乱七八糟。

By far the majority of bridges are designed to carry automobile or railroad traffic, but some are intended for pedestrians only, A number of aqueduct bridges, mostly erected in Europe in the 19th century, carry canals and their barge traffic~ and at least one bridge, at New York City's Kennedy Airport, serves to carry taxying aircraft over a highway.

到现在为止，大多数桥梁的设计进行的汽车或火车交通，但有些则拟作行人专用区，不少输水桥梁大多建于十九世纪的欧洲，进行运河和驳船的交通~至少一桥在纽约市的肯尼迪机场，可携带taxying飞机在一条公路上。

The primary failure leading to collapse is identified as unseating of superstructures at the expansion joints and abutments.

桥梁上部结构的落梁是桥梁倒塌的主要原因之一。

The primary failure leading to collapse is identified as unseating of superstructures at the expansion joints and abutments.

桥梁上部结构的落梁是桥梁倒塌的首要原因。

Unseating prevention device is an important component of collapse-proof system of highway bridges.

连梁装置是公路桥梁防落梁系统的重要组成部分之一，本论文在分析桥梁震害及其原因、介绍国内外连梁装置的发展和现状的基础上，设计了钢棒和钢绞线连梁装置。

Research on Design Theories and Methods of Unseating Prevention Devices Based on the seismic standard of China, the design theories of unseating prevention devices were presented, according to the response spectrum of random loading and the fortify intensity at expansion joints, the design method was put forward. In the light of the use of unseating prevention devices at home and abroad, the choice and methods for installation of the devices are introduced and compared.

4连梁装置设计理论与方法研究考虑场地土的不同地震动参数和桥梁等级的不同，在论文中引入桥梁地震荷载重要系数，并根据冲击荷载的反应谱，提出连梁装置的设计地震力力和位移计算方法；参照国内外的连梁装置设计使用的现状，介绍了多种类型连梁装置的选用及安装方法；对连梁装置缓冲部分不同的构造进行了试验。

The superstructure uses the standard drawing, the substructure has used the gravity T-shape abutment and the rectangular buttress, in the design carries on the size to the abutment and the bridge pier to draw up, simultaneously satisfies the design the principle, the abutment uses 9.3m, in satisfies the structure and under the operation requirements premise, the abutment uses 9.3m to be long, because the geological condition decided, the pillar body uses 12m to be high, the open excavation foundation, the process load computation and the load combination, has carried on the bridge abutment and the pillar bottom section stress separately to the abutment and the bridge pier examines calculated, examines calculated the result conforms to the standard requirement, the bridge span uses the straight line build, and established this bridge construction organization plan, including the engineering project characteristic, the construction plan, the job practice, the bridge building construction technology, the measure has drawn up the top cap and the tray structure and matches the muscle chart, finally has drawn up Shui Xigou the bridge overall and the horizontal plan.

内昆铁路水溪沟大桥，中心里程为DK608+393.00，该桥的设计方案有三个，通过技术、经济比较，采用4×32m预应力混凝土简支梁桥方案，桥梁全长149.5m，I级单线铁路，设计时速为120km/h，设计荷载为中活载。上部结构采用标准图，下部结构采用了重力式T 形桥台和矩形桥墩，设计中对桥台和桥墩进行了尺寸拟定，在满足构造和使用要求的前提下，桥台采用9.3m长，由于地质条件决定，墩身采用12m高，明挖基础，经过荷载计算和荷载组合，对桥台和桥墩分别进行了台底和墩底截面应力的检算，检算结果符合规范要求，桥跨采用直线布设，并且编制了该桥的施工组织设计，其中有工程项目的特征、施工方案、施工方法、桥梁工程施工技术，措施绘制了顶帽及托盘构造及配筋图，最后绘制了水溪沟大桥的总体及平面图。

In the lots type of bridges ,the arch bridge is a very common system in our country.

在诸多结构型式的桥梁中，拱桥是我国公路上使用很广泛的一种桥梁体系。

In this paper,Ningbo Yaojiang steel arch bridge is taken as an example.

1概述随着国民经济和桥梁建造技术的迅猛发展，越来越多的大跨度桥梁矗立在我国的大地上。

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。