桥梁工程

In this paper, Plate Girder Element and Virtual Laminated Element were used to analyze P.

中文题名预应力混凝土斜拉桥施工控制研究副题名外文题名 Construction control study of P.C.cable-stayed bridge 论文作者施笃铮导师徐兴项贻强教授学科专业结构工程研究领域\研究方向学位级别博士学位授予单位浙江大学学位授予日期2002 论文页码总数123页关键词预应力混凝土斜拉桥施工控制斜拉桥桥梁施工馆藏号BSLW /2002 /U448 /36 本文用平面杆系理论和空间虚拟层合单元法，在对预应力混凝土斜拉桥整桥结构进行分析的基础上，用正装迭代法对该斜拉桥进行分阶段施工仿真分析；又通过建立有约束的非线性优化模型，对预应力混凝土斜拉桥的施工控制参数（初始张拉索力和立模标高）及成桥状态进行优化，进而建立预应力混凝土斜拉桥施工控制系统。

Migrating pingos formed along fault zone in permafrost north Tibetan Plateau,destructing bridge,culvert and oil pipeline.

青藏高原北部常年冻土区断裂破碎带发育的移动冰丘对桥梁、涵洞、输油管道等工程设施具有不同形式的破坏作用。

It reveals the stress field,displacement field and plastic deformation caused by freezing and expansion of the migrating pingo and presents the oil pipe bending deformation caused by t.

青藏高原北部常年冻土区沿活动断裂发育有移动冰丘，其对输油管道、桥梁、涵洞等工程设施具有破坏作用。

Robert Moses, the master builder of roads, parks, bridges, and other public works of the 1920s to the 1970s in New York, built his overpasses according to specifications that would discourage the presence of buses on his parkways.

罗伯特。摩西，这位具有影响力的建筑师，自1920到1970年间在纽约从事道路、公园、桥梁与其他公共工程的建筑，他在计画书中载明，设计盖这样的天穚，是不允许让巴士出现在他的公园大道上。

The engineering rubber product cover 4 big series into more than 100 kinds in over 1,000 spec fications,,including rubber water stop, plate bearing, pot bearing, expansion joint and restrainers, covering 43 percent of the national markets.

工程橡胶产品又涵盖了橡胶止水带、板式支座、盆式支座、桥梁伸缩装置四大系列100多个品种、1000多种规格，占据了全国43%以上的市场份额。

In recent years, the town invested more than 2000 million, paving the Village of the main trunk road cement 18; more than 500 million yuan of investment, construction, alteration bridge 7; invest nearly 400 million of 8 Mainstreaming for River Jun deep, to clear up obstacles in the sewage, stone masonry fence to ensure the smooth flow of drainage channels; invest more than 100 million objects to the reservoir, the reservoir Lane Niu-shih, Nan Tien after the reservoir reinforcement carried out to ensure that Anquanduxun; invested over 500 million Yuan, the central community-building fields, West Zhaicun Water Supply Improvement Project, the further improvement of living conditions.

几年来，全镇投入资金2000多万元，铺筑了镇村主要干道水泥路面18条；投资500多万元，修筑、改建桥梁7座；投资近400万元，对8条主流溪河进行浚深、排污清障、砌筑石篱，确保排水渠道的畅通；投资100多万元对象地水库、牛屎巷水库、后喃田水库进行除险加固，确保安全渡汛；投资500多万元，建设田中央社区、西宅村水改工程，生活条件得到进一步改善。

Based on the tests of rolling and drawing alloying wire, the good structure and properties of large gauge highcarbon steel wire are obtained by adding a certain amount of Cr to steel.

1前言近20年，国际上预应力钢丝，钢绞线广泛用于高速公路、大跨度桥梁、高层建筑等工程上，其发展方向是大规格、高刚度、低松弛、耐腐蚀、大盘重。

Two GFRF system model identify algorithms based respectively on Signal Flow Graph/Driving Point Impedance and EDA simulation are proposed. In order to solve the problem of fault diagnosis that the inner structure and parameters of the Object under Test cannot be able to determine, a new fault diagnosis method based on the phase space reconstruction and GFRF general formula is investigated. This method builds up a bridge between the chaos theory and Volterra series analysis, which does not strongly depend on the topological structure and the testing data length, is sensitive to the fault property, traces monotonously the change of system fault, and possesses some significant predominance compared with conventional fault diagnosis methods of analog circuits.

提出了基于信号流图/驱动点阻抗法的GFRF算法和基于EDA仿真和非线性频谱响应特性分析的系统模型辨识算法，为解决工程实践中不能确知被测对象内部结构和参数时的故障诊断问题，研究了基于相空间重构和GFRF简化算法的复杂电子系统故障诊断方法，该方法建立了混沌理论与Volterra级数分析法之间的桥梁，它对被测对象的拓扑结构依赖性不强，对被测系统的故障性质的敏感，可以单调地跟踪系统故障的变化，这种基于混沌特性分析的故障诊断方法与其它的模拟电路的故障诊断方法相比较具有显著的优势。

Based on the example of the design of the 20m-hollow slab Xigang Anti-earthquake Elevated Bridge,calculation methods in bridge anti-earthquake(method of static, response spectrum theories, method of dynamic timing analysis )are analyzed and discussed.

结合西港高架桥 2 0m跨空心板抗震设计的工程实例，对桥梁抗震的计算方法(静力法、反应谱理论、动态时程分析法)进行分析和探讨。

The electronic total station is widely used in engineering construction,especially in positioning for bridge and setting-out of route for line.

全站仪是现在工程建设中逐渐普及的测量仪器，但更多的是利用在路线放线和桥梁定位上。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。