【作者】 刘英；

【导师】 刘洪瑞；

【作者基本信息】 广东工业大学 ， 结构工程， 2008， 硕士

【摘要】 随着现代化工业的发展,超限车辆会越来越多的不可避免的行驶在公路桥梁上,而现有公路桥梁也不可能在设计上满足超限车辆通行的承载力要求。而超限车辆过桥往往具有时间紧,任务重的特点,能快速的对桥梁进行承载力评定以及制定合适的加固方案具有十分重要的意义。本文通过对双曲拱桥和刚架拱桥的研究,应用MIDAS/Civil 2006建立了双曲拱桥和刚架拱桥的有限元模型。并同时对不同级别的超限车辆通过上述不同跨径的两种桥型时的桥梁承载力进行系统的验算和评定。对验算不能通过的部位拟定了加固方案或提出加固建议。超限车辆包括:224吨、287吨、412吨、559吨。双曲拱桥:跨径30米;刚架拱桥:跨径25米、45米、64米、70米。并结合庄泳浩师兄和查品才师兄计算的多级别超限车辆通过不同跨径的空心板桥、普通钢筋砼简支T梁桥数据资料,以及吴东亮师弟计算的多级别超限车辆通过不同跨径的预应力砼简支T梁桥和连续梁(板)桥数据资料,应用java语言编制了“多级别超限车辆过桥承载力咨询系统”。该系统还依托了“茂名石化超限车过桥验算与加固项目”进行了实桥验证,获得了成功。应用“多级别超限车辆过桥承载力咨询系统”,用户可以通过计算机键盘输入拟过桥的超限车辆基本数据及将要过超限车辆桥梁的基本数据,即可获得过桥承载力咨询结果,大大方便了用户,经济效益、社会效益显著。更多还原

【Abstract】 With the development of the indusnal construction in our country, more and more utmost load vehicles run on the bridges. But the bridges can’t meet the bearing capacity request for utmost vehicles in design. There have urgent time and heavy mission characteristic when the utmost vehicles passing bridges. Quickly bearing capacity evalution and make a advisable reinforcement measures, which it is very significant.Applying MIDAS/Civil 2006 to make finite element models for the double arch bridge and rigid frame arch bridge. And then, making a systemic check computations and evaluations for bearing capacity, when the variable level utmost vehicles passing the different spans. This paper study out reinforcement measures for the part if the bearing capacity evalution can’t pass. The utmost vehicles includes four types: 224ton、287ton、412ton、559ton. Double arch bridge span:30 meter; Rigid frame arch bridge spans:25meter、45meter、64meter、70meter.Combining the data of hollow slab bridge、RC simple T beam bridge、PC simple T beam bridge and continuous girder(board) bridge, this paper workout the "mutirank utmost vehicles passing consultation system" in JAVA. This system has been applied in project successfully.In this system, the user can input the basic data of the utmost vehicles and bridges through the keyboard. And then, the system will give consultation results, which is convenient and have notable economic benefit and social benefit.更多还原