摘要
详细论述了铁路两连续梁相接处桥墩的总体设计思路,给出了设计流程,并以丹大铁路一处实际工点为例,展示了从拟定桥墩外形、结构尺寸到计算所受的主力、附加力、地震荷载和其他特殊荷载的计算方法。地震荷载需要结合实际工点的地质条件和地震带区域划分,以Midas建模求解。计算桥墩截面内力时,需要分析桥墩在施工及运营阶段可能受到的各种荷载组合,取最不利工况进行配筋。铁路桥墩的设计,均可以上述流程和思路作参考。
This paper presented the overall design concept and the design process of the railway joint pier between two continuous beams.Taking the Dandong-Dalian railway as an example,this paper demonstrated the pier shape,the structural dimension,and the calculation methods of the main force,additional force,seismic load,and other special loads.Seismic load should be calculated with Midas model by combining the geological conditions and seismic zone division,the calculation of the pier cross-section internal force should analyze the various load combinations of bridge pier suffered in construction and operation phase,and the most unfavorable condition should be taken for reinforcement,which can be applied to railway pier design.
出处
《铁道建筑》
北大核心
2012年第12期12-14,共3页
Railway Engineering
关键词
连续梁相接
铁路桥墩
设计分析
Joint pier between two continuous beams
Railway pier
Design analysis
