查询词典 suspension bridge

Based on the theory of fracture mechanics and the principle of structural reliability analysis,a computation formula of the fatigue failure of suspension cable system in a suspension bridge caused by alternate stress is deduced,thus an evaluation method on the safety life of suspension cable system which has been subjected to eroding is suggested,according to which,highway administration departments can arrange the opportunity of detection,maintenance and strengthening of bridges,as well as the investment.

根据断裂力学理论和结构系统可靠性分析原理，推导出交变应力引起的悬索桥吊索系统疲劳失效的计算公式，从而提出的一种考虑构件腐蚀后吊索系统安全寿命的评估方法，可以为公路管理部门合理安排桥梁的检测、维修、加固的时机和投资提供依据。

According to theory analysis and example computation, the following conclusions are obtained.1. During the analysis on the cable shape in the suspension bridge"s completion state, the pre-displacement of saddle and the case that the cable and stiff girder commonly bear the second-stage dead load should be considered.2. When supposing the construction ideal initial state in the first time, if the initial state model is established according the cable"s span central sag in the bridge"s completion state, and the reasonable correction formulation is created in the iteration process, the result can converges fast.3. The cable shape in the bridge"s completion state is not parabolic, nor catenary. It is between parabola and catenary. Actually it is funicular polygon closer to the catenary.

通过理论分析和实例的计算表明：1在悬索桥主缆成桥线形分析过程中，须考虑主塔鞍座的偏位以及二期恒载由主缆和加劲梁共同承担的实际情况；2在第一次假设施工理想初态时，以成桥状态已知的主缆跨中垂度建立施工理想初态模型，同时在迭代计算的过程中，建立合理的修正公式，才能使收敛的速度快：3在成桥状态时主缆的线形既不是抛物线，也不是悬链线，而是介于抛物线与悬链线之间，更接近于悬链线的索多边形。

In this paper, elementary frame of the suspension bridge analysis is obtained which is reference to the suspension bridge construction control and also a foundation of the further study of SBCS.

本文的研究初步形成了悬索桥施工控制计算结构分析系统的框架，为悬索桥的施工控制计算提供了参考，具有工程实用意义，同时为今后悬索桥施工控制分析程序的进一步研制奠定了基础。

On completion, it was the largest suspension bridge in the world and the first steel-wire suspension bridge.

在1883年完工时是世界上最长的悬索桥以及第一座使用由钢铁制成的悬索的桥梁。

Concrete work covers the following aspects:(1) Based on the finite displacement theory and the characteristics of Self-anchored and single-tower suspension bridge, and considering the nonlinear factors. A span of 80 +190 +260 +80 m independence of the self-anchored suspension bridge tower carried out a detailed analysis. Through static analysis of the vector cross-over cable, cable-plane form, stiffening beam camber and the temperature load on the structure.

具体工作如下：(1)基于有限位移理论，针对自锚式独塔悬索桥的受力特点，全面考虑几何非线性因素对自锚式悬索桥的影响，对一座跨度80+190+260+80m的自锚式独塔悬索桥进行了详细分析；通过静力计算来分析主缆矢跨比、索面形式、加劲梁拱度和温度荷载对结构的影响。

Taizhou Bridge on Changjiang river is an important ground anchor suspension bridge with 2×1080m span in Jiangsu province. It is the largest three-tower two-span bridge in the world.

泰州长江大桥是江苏省内跨越长江的又一座重要桥梁，采用三塔两跨地锚式悬索结构，跨径2×1080 m，为世界上同类桥梁之最。

After researching the proplems above, the standard and systematic theory on erection of hauling system of suspension bridge is formed ,and by application in erection of RengYang bridge "which is domestic first, the third in the world", main cable wire strand was kept well in the erection, record which is,the most quik ever in china or in the world and which can erect eight main cable wire strands in a day was even finished, it guaranteed the high—quality and high—efficient hauling erection in wire strand of RenYang bridge.

经过以上几个方面的研究，初步形成了一套规范化、系统化的悬索桥主缆索股牵引技术研究理论，通过在&中国第一、世界第三&的润扬大桥主缆施工过程中的具体应用，索股形状保持较好，有效地控制了索股乱丝、呼拉圈、扭转等现象的发生，曾实现一天架设8根(单边4根)的国内外最快施工记录，确保了大桥主缆索股优质高效的牵引施工。

The first cross sea pontoon in the world-Da Xie Bridge, Ningbo, Zhejiang; Merowe Pontoon over the Nile, Ningbruss Pontoon over Congo River in Africa, Ktihat Pontoon in Nepal, 200T ferry in Sudan, Kelimu Pontoon in Xinjiang, and trestle of Minsk aircraft carrier in Shenzhen are functioning as the business card of our company in the civilian pontoon market. The series of suspension bridge of southeast hydraulic power plant trestle, Hangzhou Bay bridge trestle, Jiaozhou Bay bridge trestle and segmental bridges in Burmese and Ecuador have won high appraise from the owners.

世界上第一座跨海浮桥——浙江宁波大榭桥、尼罗河上的麦洛维浮桥、非洲刚果河上的英布鲁浮桥、尼泊尔的可迪亚哈特浮桥、苏丹的200吨渡船以及新疆的塔里木浮桥、深圳明斯克航母栈桥等，成了我公司在民用浮桥市场的名片，以西南水电站用栈桥、杭州湾大桥栈桥、胶州湾大桥栈桥和缅甸、厄瓜多尔等国的拼装式吊桥为代表的系列吊桥、装配式公路钢桥得到了业主的高度赞扬。

It is understood that the Yangtze River Bridge have been completed with the opening of the Yangtze River Bridge, Sanqiao different, it is the main span of Nanjing, the first 1418 meters of the twin towers three-span suspension bridge, looks like a well-known San Francisco Golden Gate Bridge, but the main span longer than the Golden Gate Bridge more than one hundred and thirty meters.

据了解，长江四桥与已建成通车的长江二桥、三桥不同，它是南京第一座主跨1418米的双塔三跨悬索桥，外观类似著名的美国旧金山的金门大桥，但主跨比金门大桥还要长130多米。

In the recent years, our company speeds up the civilizing process of emergency bridge, forming five series of civilian emergency bridges including pontoon, suspension bridge, cableway bridge, combined working ship, package type railway steel bridge and has achieved comprehensive achievements by fully utilizing the emergency bridges characteristics of "high mechanization, rapid erecting speed, flexible length and width per requirements, superior interchange performance strong applicability".

近年来，我们充分利用应急桥&机械化程度高，架桥速度快，能长能短，能宽能窄，互换性好，适用性强&的特点，加快了应急桥民用化进程，形成了浮桥、吊桥、索道桥、组合式工程船、装配式公路钢桥五大民用应急桥系列，并创造了不俗的业绩。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。