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Secondly, in the dissertation, the theories and methods of calculation on bridge deck system were discussed, and bridge deck system simplified as a beam was analyzed with the theory of elastically supported continuous beam and the method of deformation compatibility; through the theory of orthotropic plate being applied to analyzing the bridge deck system which was assumed an elastically supported continuous plate, certain theoretical derivations were made and some calculation formulas were given.

其次，本文研究论述了桥道系的计算理论和方法，将桥道系简化为梁，利用弹性支承连续梁理论和变形协调法进行分析；把桥道系视为弹性支承连续板，利用正交异性板理论进行分析，作了一定的理论推导，并给出了相关计算公式。

Speaking of Dongfeng Green Bikeway, previously it was an abandoned old railway, but today it has become one of the well-known bikeways across three townships in Taichung County. Along the bikeway, cyclists will be able to visit a lot of distinctive scenic spots, including Shihgang Station, 921 Historical Shihgang Dam, Japanese-style Old Barn, tourist centre, Lover Wooden Bridge, Plum Nostalgic Park, century-old mango tree, Dongfeng Iron Bridge, Rainbow Bridge, Dongshih Hakka Cultural Park and so on. The entire bikeway round-trip takes about 2 hours.

东丰绿色走廊」一条废弃的旧铁道，数十年后的今日续而成为全国知名的铁马道，横跨台中县三个乡镇，沿途经过许多特色景点有石冈车站、九二一史迹石冈水坝、日式旧榖仓、交通旅游局~旅客服务中心、情人木桥、五福临门、梅子怀旧公园、百年芒果树、东丰铁桥、虹桥、东势客家文化园区来回大概2个小时的车程，租部铁马、饱览风光、品尝绿廊上的特色美食，亲近自然、休闲自在。

Then, safety analysis method was constituted considered the typical damage of concrete beam bridge. 5. By amending the reduction rate of loading capacity used in Code for Maintenance of Highway Bridges and Culvers (JTG H11-2004), a new reliable index is presented in the same safety standard to reflect the relation between load and resistance. According to the basic principal of calibration method, the recommended gradation index was computed under various factors such as different load combinations, vehicle operating status and different failure modes. With these calculated numerical values, the calculated reliability indexes standard for the estimation of safety degree of in-service concrete girder bridge members was ultimately obtained.6. Based on the related standards and results on crack and displacement that cannot continue to loading at home and abroad, the evaluation grade of the concrete beam bridge is proposed by analogy.

针对材料和构件损伤对混凝土梁式桥抗力的影响，基于材料和构件层次典型损伤的修正计算公式，在结构既有以及时变抗力评估的概率模型基础上，通过误差传递公式获得抗力统计参数，对抗力进行修正，构成了考虑混凝土梁式桥典型损伤的安全性分析方法。5、依据校准法原理，将《公路桥涵养护规范》(JTG H11-2004)中不同类别承载力下降率转化为修改分项系数，分别计算了轴心受压、轴心受拉、受弯、大偏心受压、受剪构件在各种情况下的可靠指标，根据破坏类型对校准结果进行分析，提出了基于可靠度的公路混凝土梁式桥安全性评定等级。6、基于不能继续承载的裂缝和位移的相关国内外规范和研究成果分析，通过类比提出了混凝土梁式桥不能继续承载的裂缝和位移评定等级界限。

The system reliability analysis method of arch-bridge is presented based on the failure model of arch rib, which is the most important failure model of arch-bridge. The control sections of arch rib in the analysis of bearing capacity reliability are determined according to the "five-spot coincidence method", which is often used in arch-bridge design with Chinese code.

针对拱式桥结构体系中的主要受力构件—拱肋进行分析，借鉴拱桥设计中的&五点重合法&确定研究截面，进而根据该截面的不利情况确定荷载布置型式。

The main products are highly effective anti-corrosion XQJ Bridge, ZQJ flame retardant Bridge, HQJ aluminum tray, XQJG FRP Bridge.

主要产品有高效防腐XQJ桥架、ZQJ阻燃桥架、HQJ铝合金桥架、XQJG玻璃钢桥架。

Based on the exhaustive research on three types of primitive bridges: natural bridge, stone bridge and float bridge in Hunan,a study on the distinguishing features,originating reasons and the redistribution factors of the bridges were given.

通过对湖南省现存天生桥、踏步桥、浮桥三种原始桥梁的研究，分析了湖南原始桥型的特点、形成原因以及影响其分布的因素，旨在体现湖南的地形和地域文化特点。

The theory and methods of CAD for three-unit fixed partial dental prosthesis crown bridge are studied, which is based on the design technology of single dental prosthesis crown bridge design. An integrated route of the design of crown bridge is put forward.

本文在基于特征的义齿单冠设计技术基础上，针对三单元固定冠桥的计算机辅助设计理论与方法进行了探索，形成了一套完整的冠桥设计路线。

Comparing the development process of the Occident bridge aesthetics with the modern and current history of the architecture abroad, it can be seen that the influences of the architecture trends have played an important role that cannot be neglected at each stage of the development of the bridge aesthetics and have pushed forward the development of the bridge aesthetics in varying degrees.

将欧美桥梁美学的发展进程与国外近、现代建筑史相对照，可以发现在桥梁美学发展的各个阶段中，建筑思潮的影响起着不容忽视的作用，并在不同程度上促进着桥梁美学的发展。

The Center Island is girted by water and have three bridges connected with the land, which is Twin-Star Bridge in the east, Dragon Arc Bridge in the north, and Jade Dragon Bridge in the west.

中心岛景区：坐落于公园湖中心的小岛，四面环水，东、北、西三面分别由双星桥、龙脊桥、玉龙桥与岛外相连。

Taking the Lancangjiang bridge as an example, the paper discussed the principle, method and process of determining ground motion parameters to design bridge of high way, which can be used in aseismic bridge design.

以澜沧江大桥为例，阐述了公路大桥设计地震动参数确定的原理、方法与过程，其结果可供大桥抗震设计选用。

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。