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最近几年 ,由于整体式桥梁本身所具有的经济性、适用性和高强度 ,其在公路上的运用受到越来越多的关注。此论文研究的就是整体式组合钢桥桥台附近的活载分布 ,确定内梁和外梁的剪力和弯矩的分布系数 ,也比较了整体式桥梁和有接缝的简支桥梁的敏感度反应。讨论了单孔和连续孔的情况 ,所用荷载由多个并列的HS2 0卡车组成。采用了线弹性有限元分析法来计算三维桥梁系统
In recent years, due to the economy, applicability and high strength of the integral bridge itself, its application on the highway has drawn more and more attention. In this paper, the distribution of live load near the abutments of the monolithic composite steel bridge is studied to determine the distribution coefficient of shear and moment of the inner and outer beams. The sensitivity of the monolithic bridge and the simply supported bridge with joints is also compared Degree reaction. The case of single-hole and continuous holes is discussed and the load used consists of several parallel HS20 trucks. Linear elastic finite element analysis is used to calculate the 3D bridge system