The time - variation reliability formula of the existing bridge in its life cycle is deduced based on markov process 基于马尔可夫过程得到体现在用桥梁生命周期内承载力可靠度时变规律的计算公式。
How to accurately evaluate the load carrying capacity of existing bridges under the existing conditions is a hot research topic 在现有的经济、技术条件下,如何准确评估在役钢筋混凝土桥梁的承载能力是目前研究的热点问题。
" it is the best way to preserve the historical bridge as all existing features can be maintained . damage to the existing bridge structure will be minimal , " he said 他说,这个做法对桥体的损害最小,可保留原桥的特徵,是保持桥体原整的最佳方法。
As a result , the fatigue life of intact reinforced beams increases by 60 % - 80 % . 4 . owing to many existing bridges to be reinforced exists different harm to some 5 、通过完好加固梁与损伤加固梁的对比试验,首次定量给出了梁的损伤对混凝土加固梁疲劳性能的影响。
However , the bidder shall define the distance under consideration of the safe train operation and existing bridge during construction and progression of construction as well as accordance to track layout 但是,在建造施工时、施工进程中以及考虑到与铁路布局的一致性,投标人应考虑火车安全操作运行和现有桥梁以确定距离。
To conclude from the given examples , each model , after spending little time on training themselves from sample data , could assess the damage degree for existing bridges using trained weighted values and thresholds 实例计算表明,各网络模型花费很少的时间完成对样本的训练后,便可利用训练好的隐含层权值与阈值对实际桥梁进行评估。
2001 11 14 macau has decided to build a third bridge connecting macau peninsula and taipa due to congestion on the existing bridges . the bridge will be built on the west side and 2200 metres long 澳凼之间现有的两座大桥分别是1974年建成的的嘉乐庇大桥和1994年建成的友谊大桥,前者长2570米,宽9米,双向两车道后者长3900米,宽15米,双向四车道。
With the rise on the highway and railway of traffic discharge ^ the raising of vehicle vociety and the growth of wheel load , a higher demand was presented on intensity , rigidity and durability of the existing bridges , and so forth 随着公路和铁路交通流量的增加、车速的提高、车辆轮载的增大,于是对沿线的桥梁在强度、刚度、耐久性等诸多方面提出了更高的要求。
In connection with the practice of rehabilitation of maju elevated bridge on the 2nd - loop way in beijing , the application of the relevant new technics and new materials in reforming and seismic - strengthening of the existing bridges are briefly introduced 结合北京市公路二环马驹桥立交桥改建的工程实践,简要介绍有关新技术新材料在桥梁改建和抗震加固方面的应用。