墩顶现浇段长度对横隔梁的影响

摘要

以三跨简支转连续预应力混凝土 T 梁为背景，运用 Midas 梁格法建立桥梁模拟模型，结合现场实测数据对比分析了墩顶现浇段长度对支点截面应力的影响，指出随着现浇段矩形截面的增长，墩顶横隔梁应力减小。%The background is a simply supported three-span continuous prestressed concrete T-beam. The bridge model is the use of Midas gril-lage method. Comparative analysis combined with field data,the purpose is to find the influence length of the pier top cast pivot section of stress. With the cast section of rectangular section beam growth,the pier top horizontal beam stress decreases.