分离式桥梁横向连接荷载横向分布计算分析及加固措施研究-桥梁与隧道工程专业论文.docxVIP

北京交越大学额士学校论文 擒要 建国以来，特别是改革开放以来，黯着有中国特色社会主义建 设事业的发展事我愚公路建设取得了长足的进步。黯着我潭公路建设 的迅速发展F 桥梁在公路交通中部作用和地位越来越蠢耍。随着我黯 公路交滋豹运步改善，许多老桥得到加宽，客观上出现了上、下行分 离式桥梁骨在二级、三级公路中步上、下行分离式桥梁占有相当比重。 分离式桥梁的跨径结合形式中，等跨连接占了精当大的比重。磁 ilt， 能否科踊貌有的单桥的荷载横向分布理论是解决问题的关键，对于不 等跨连接的桥梁，空阔计算模型的建立也成为解决问题舵关键怡 对于等3号横向连接的桥梁章本文通过 ANSYS 对横向连接带处交 承条件的简化比较，得出了横向连接常处采用简交支承条件时，与不 简化支承条件，所得的计算结果 F 完全能满足工程上的精度要求奇商 座桥横向连接后，满足公路桥梁荷载横向分布理论计算的要求。 文才子不等跨横向连接豹桥梁，本文也通过 ANSYS 对于如模型 1 演示的连续形式进行了分析。分析结果显示?除接近横向连接管?处的 板梁F 其他各梁的挠度曲线均笠正弦曲线串这恰恰满足了荷载横向分 布计算关于挠度的假设稽 对已建横向连续的桥梁施工工艺遂行分挺、研究，总结出混婆是 土凿除啻攘攘以及连接树间要求等工艺问题 b 关键词: 分离式桥梁，横均速楼，有照 35p 计算模型，荷载分布 、 1 北京交通大学硕士学位论文 北京交通大学硕士学位论文 Abstract Since the foundation of 0山coun町 especially after the OpeningOf the revolution ，wi th the development of the socialist of Chinese ， great improvement have been made on our roading. Wi th the rapid development of our roading，bridge is more and more important in our roading. With the widen of the old bridge ，separated bridge is appeared. 1n fact，in 2nd and 3rd grade bridges ，the separated brìdges are of a great percent. Of a great percent of the separated bridges ，they have the same span. SO，the load transverse distributing theory can be used to 801ve the problem. And for the separated bridge which.don t have the same span， the model can be created to solve the prob1em. As for the transverse joint bridges wi th same spans，.the ANSYS program is used to ana1yze the bridge whose transverse joint s supporting are predigested. The resul t that the supporting is simple is the same as that not predigest?ng. After the two bridges are jointed ，the roading bridge load transverse distributing theory is in point. As for the transverse joint bri dges wi th di fferent spans， the ANSYS program is a1so used to analyze it. The resul t shows that the flexibi lity expect the transverse joint are a11 accord wi th sine wave. As known to everyone，the flexibil i ty which the roading bridge load transverse distributing theory requ