【作者】 杨昌正；

【导师】 宁晓骏；

【作者基本信息】 昆明理工大学 ， 道路与铁道工程， 2006， 硕士

【摘要】 本文主要研究一座具有代表性的小半径弯箱梁桥的力学行为。运用大型通用有限元软件ANSYS研究小半径弯箱梁桥的支承布置方式、偏心距及约束形式对结构内力的影响。在此基础上，进一步探讨恒载、汽车移动荷载、温度荷载及地震等因素对结构的影响，以期从大量的计算分析中总结出一些规律，为小半径弯箱梁桥的设计提供新的思路和实用的计算方法。本文主要研究内容为：1．支承布置方式对结构内力的影响；2．支座合理偏心距的研究；3．支承约束形式的比选；4．小半径弯箱梁桥静力分析；5．小半径弯箱梁桥地震响应分析。更多还原

【Abstract】 The mechanics behavior of a representative small radius curved box-girder bridge is studied in this dissertation. Utilizing the large-scale general finite element software ,ANSYS, to study the influences of the supporting layout way, the eccentricity and the restraint form on internal force of the structure. On the basis of these, the influences of the dead load, vehicle moving load, temperature load and seism on the structure are further discussed in order to summarize some rules from a great deal of calculation and comparison to provide new ideas and practical methods of calculation for the small radius curved box-girder bridge design .Main contents is as follows:1.Influences of the supporting layout way on the internal force of the structure ;2.Studing the suitable bearing eccentricity ;3.Comparison and selection of the supporting restrain form ;4.Static analysis of the small radius curved box-girder bridges;5.Seismic response analysis of the small radius curved box-girder bridges .更多还原