铁路钢桁梁桥高强螺栓连接程序化设计方法  

Procedural Design Method for High Strength Bolt Connection for Railway Steel Truss Girder Bridge

作　　者：刘龙 LIU Long(Civil Engineering Design Research Department,China Railway Design Corporation,Tianjin 300308,China)

机构地区：[1]中国铁路设计集团有限公司土建工程设计研究院,天津300308

出　　处：《中国铁路》2023年第3期52-57,共6页China Railway

基　　金：中国铁路设计集团有限公司科技开发项目(2022B03406029)。

摘　　要：针对铁路钢桁梁桥高强螺栓连接设计工作量大、设计成果显示不直观、不擅长处理复杂边界条件下的设计任务等问题,基于不同边界条件下的6种高强螺栓排布样式及螺栓跳孔通用处理方法,提出铁路钢桁梁桥高强螺栓连接程序化设计方法。结果表明:(1)该方法能对设加劲肋、开孔、跳孔等复杂边界条件下高强螺栓进行排布,并生成绘图用数据;(2)架构简单,不涉及专业的计算机知识背景,便于非计算机专业出身的结构设计人员编程实现;(3)该方法可用于计算截面的净截面特性,进一步开展强度、稳定、疲劳检算。该方法能够为公路、建筑、市政等领域类似程序的开发提供参考。Aiming at challenges of high-strength bolt connection design of railway steel truss girder bridges, such as heavy workload, unintuitive display of design results, and poor ability to deal with design tasks under complex boundary conditions, a procedural design method for high-strength bolt connection of railway steel truss girder bridges is proposed based on 6 types of high-strength bolt arrangement patterns under different boundary conditions and the general treatment method of hole skipping. The results show that:(1) This method can arrange high-strength bolts under complex boundary conditions such as stiffening ribs, openings and hole skipping, and generate data for drawing;(2) The architecture is simple and does not involve professional computer knowledge background, which is convenient for programming by structural designers who are not computer professionals;(3) This method can be used to calculate the net section characteristics and further carry out strength, stability and fatigue checking calculation. This method can provide references for the development of similar procedures in highway, construction, municipal works and other fields.

关 键 词：铁路钢桁梁桥 高强螺栓连接 复杂边界条件 程序化设计 

分 类 号：U444[建筑科学—桥梁与隧道工程]