目录1工程概况..................................................................................................................21.1设计标准.............................................................................................................................21.1.1设计道路等级与技术标准......................................................................................21.1.2计算参数..................................................................................................................31.1.3荷载组合..................................................................................................................51.2主要材料及性能指标设计参数.........................................................................................52计算依据和内容......................................................................................................52.1计算依据.............................................................................................................................52.2计算内容.............................................................................................................................53纵向计算..................................................................................................................53.1计算模型.............................................................................................................................63.2持久状况承载能力极限状态计算.....................................................................................63.2.1正截面抗弯承载力验算..........................................................................................63.2.2斜截面抗剪承载力验算..........................................................................................83.2.3抗扭验算..................................................................................................................93.3持久状况正常使用极限状态计算...................................................................................113.3.1裂缝宽度验算.....................................................................................