危桥 meaning in English
bridge in danger
Examples
- Over the past 5 years , the zhuhai road bureau has accomplished the construction of 2 , 071 kilometer highways and the reconstruction of 28 decaying bridges of varying sizes
过去五年,市公路局共完成2071公里水泥公路的建设,改造大小危桥28座。 - In recent years , along with the development of traffic in china , a portion of bridges have been damaged to a certain degree and the quantity of dangerous bridges is increasing year by year , the carrying capacity of many bridges is falling
近年来，随着我国交通事业的发展，我国已有一定数量的桥梁发生老化、损害现象，危桥逐年增多，承载能力明显降低。 - But the double arch bridges have demerits , for the design lever and the load criterions on the low side then , and the steel is scarce in the structure . when the bridges are loaded heavily , and in heavy traffic for long time , most of them are damage
但是限于当时设计水平和荷载标准偏低，结构钢材用量少，双曲拱桥存在着先天不足，特别是在长期重荷载、大交通量的运营情况下，大部分双曲拱桥都出现了不同程度的病害，许多已成为危桥。 - This year , the bureau will concentrate on the 8 driveway reconstruction of the shangchong - zhongshan part of no . 105 national - level road , the reconstruction of several parts of no . 272 provincial - level road and 11 rural dilapidated bridges and also in the application of the reconstruction of the zhuhai highway
今年,市公路局将重点抓好国道105线上冲至中山段八车道改造工程、省道272线部分路段以及推进11座农村危桥的改造,同时做好珠海大道改造的报批工作。 - In this paper , using large - scale current finite element software , analysising nanbu jialingjiang bridge as engineering example , considering the united action of arcade and of arch with the structure on crown , the author build several 3d finite element models including original bridge , dangerous bridge , all phases of strengthening bridges and strengthened bridge . in order to decide the most unfavorable load case accurately and quickly , using static analysis method this paper draws out the influence surface of bend moment for main section ; base on built models the paper analyzes the internal forces on entirely strengthening process and knows the damaged degree of dangerous bridge and does feasibility studying on its strengthening method ; finally , the paper simply analyzes the unite action of arcade and of arch with the structure on crown
本文利用大型通用有限元软件，结合南部嘉陵江大桥这一具体的工程实例，考虑连拱及拱与拱上建筑的联合作用，建立了包括原桥、危桥、加固各阶段和加固后各状态在内的空间计算模型；为了准确、快捷的确定最不利荷载工况，利用静力法绘制了旧桥主拱圈各控制截面的弯矩影响面；对其加固改造全过程进行了静力分析计算，明确了危桥的病害程度并对其加固方法进行了可行性研究；最后，简单分析了考虑连拱及拱上建筑与否对该桥主拱圈内力的影响。