中文摘要：

根据现浇桥面板的Ⅰ形组合板-梁桥的结构特点,通过试验与理论计算对比,研究该种组合板梁桥荷载横向分布计算方法。运用桥梁博士软件建立结构分析模型,根据理论分析与实测各种荷载工况下各片梁的挠度及应力,判断Ⅰ形组合板-梁桥的实际承载力;将ANSYS有限元法、桥梁博士刚接板梁法及试验测试结果对比研究,验证理论分析方法的可靠性,确定该类组合梁桥的荷载横向分布系数计算方法。

英文摘要：

Comparative analysis between testing and theory, the live-load distribution of I-type simple span slab-on-girders bridge is studied based on structure characteristic of this type bridge. In order to identifying the carrying capacity of I-type flitch beam bridge, the deflections and stresses of different beams are analyzed through test and theoretical analysis based on different load conditions. During the period of theo- retical analysis, the model of bridge is built using Dr. 3.0. At the same time, the comparative research among finite element method using ANSYS , slab （girder） with transverse rigid joints and testing, the resuits confirm the feasibility of theoretical method. At last, the project propose the live-load distribution coefficients which suits for this type bridge is suggested.