【作者】 曾智；

【导师】 王佶；

【作者基本信息】 武汉理工大学 ， 结构工程， 2005， 硕士

【摘要】 随着公路等级的提高,桥梁涵洞等公路构造物所站比重越来越大,而高等级公路对路面质量要求较高,良好的路面结构设计和高标准的施工设备及严格的施工技术已使路面质量达到了相应的指标,如我国近期所修筑的高速公路,行车舒适性大大的提高。相反,桥面平整度差和沥青混凝土剥落问题日益严重,对高速行驶车辆的安全性构成了一定程度的威胁。近年来全国各地不少桥面建成不久,桥面铺装就出现了严重的破损、开裂、坑槽、拥包等病害,给交通造成很大的不便,严重时还容易造成交通事故。这些问题引起了人们对桥面铺装的重视。本文就桥面铺装出现的各种病害情况进行研究,分析了造成不同病害的各种原因,并提出了控制病害的一些控制指标。 在对高速公路混凝土桥梁荷载横向分布系数计算的探讨性研究之前,先介绍了桥梁实用空间分析理论,对桥梁横向分布系数的计算原理作了简要的说明。然后结合一座装配式简支板桥现场试验数据,采用铰接板法对桥梁荷载横向分布系数进行了计算。之后又研究了在加铺混凝土铺装层后的桥梁荷载横向分布系数的计算,并就两种不同的计算方法进行了讨论。并且对加铺前后桥梁荷载横向分布系数的变化进行了比较,得出了一些结果。更多还原

【Abstract】 With the rapid development of highway grade, the highway structure as bridge is more and more important. And high grade road is high request to the road quantity. Good road construction design and high standard construction equipments and start construction strictly the technique have made the road quantity come to a the homologous index sign, such as our country a superhighway for constructing near period, the exaltation that a car comfortable is consumedly. Contrary, bridge the neat a safety for badly with peeling off problem in the concrete of asphaltum increasingly seriously, to mading good time vehicle constituted the threat of the certain degree. National every locality not a few bridges sets up in recent years soon, the bridge spread to pack and then appeared seriously of breakage, crack , pit slot, etc. disease harm, resulting in the transportation the very inconvenience, the serious hour still results in the traffic accident easily.These problemses caused people to spread to pack to the bridge of value.Before carrying the horizontal distributing the calculating study in coefficient research to the superhighway concrete bridge load, introduced first the practical space in bridge analysis theories, is horizontal to distribute to the bridge the calculation principle of the coefficient made the elucidation of the synopsis. Studied again after at add to spread the concrete spread the bridge load that pack the layer empress carry the horizontal distributing the calculation of the coefficient, combine to proceed the discussion for two kinds of different calculations method.更多还原