管拱型钢波纹管涵洞有限元计算分析
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摘要
为拓展钢波纹管的应用型式,运用大型有限元分析软件建立合理的力学有限元模型,对管拱型钢波纹管涵洞的受力变形进行了计算分析。运用有限元法分析得出管拱型钢波纹管涵洞土体受力变形规律。在建立的有限元模型中,通过施加公路-Ⅰ级荷载分析得出,填土高度对不同的拱顶角度的管拱型钢波纹管的周向等效应力、最大等效应力、横向位移、竖向位移的变化规律,确定了最优管型。对管拱型钢波纹管涵洞在公路工程中的发展、运用具有重要现实指导意义。
In order to expand the application of corrugated steel tubular culvert,a computation analysis on the loading deformation of arch-shaped steel corrugated tubular culvert was carried out by a reasonable mechanical finite element model established by use of large-scaled finite element analysis software. The law of loading deformation of the arch-shaped steel corrugated tubular culvert was obtained by finite element analysis. Among the finite element models set up,the variation law of surrounding equivalent stress,maximum equivalent stress,lateral movement,vertical displacement of the arch-shaped steel corrugated tube under the forces of filling height acting on different vault radian were computed by imposing loads of rating I for highway. Thus the optimal tube shape was determined,which is practical and important and may guide the development and application of the arch-shaped steel corrugated tubular culvert.
In order to expand the application of corrugated steel tubular culvert,a computation analysis on the loading deformation of arch-shaped steel corrugated tubular culvert was carried out by a reasonable mechanical finite element model established by use of large-scaled finite element analysis software. The law of loading deformation of the arch-shaped steel corrugated tubular culvert was obtained by finite element analysis. Among the finite element models set up,the variation law of surrounding equivalent stress,maximum equivalent stress,lateral movement,vertical displacement of the arch-shaped steel corrugated tube under the forces of filling height acting on different vault radian were computed by imposing loads of rating I for highway. Thus the optimal tube shape was determined,which is practical and important and may guide the development and application of the arch-shaped steel corrugated tubular culvert.
引文
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[2]李祝龙.公路钢波纹管涵洞设计与施工技术[M].北京:人民交通出版社,2007.LI Zhulong.Design and Construction of Corrugated Steel Culverts[M].Beijing:China Communications Press,2007.
[3]陈昌伟.波形钢板结构及其在公路工程中的应用[J].公路,2000(7):48-54.CHEN Changwei.The usage and the structure of corrugated steel plate in highway engineering[J].Highway,2000(7):48-54.
[4]Purdum R L.Hand Book of Steel Drainage&Highway Construction Products[M].2nd ed.Kentucky,United States:The Lakeside Press,1971.
[5]尹航.覆土波纹钢板拱桥力学性能分析及设计方法研究[D].北京:北京交通大学,2008.YIN Hang.Mechanics Behavior and Design about Buried Corrugated Steel Arch Bridge[D].Beijing:Beijing Jiaotong University,2008.
[6]刘百来,李祝龙,汪双杰.钢波纹管涵洞力学性能的有限元分析[J].西安工业学院学报,2006,26(1):83-86.LIU Bailai,LI Zhulong,WANG Shuangjie.The accuracy of finite element analysis about the mechanical performance of corrugated steel culvert[J].Journal of Xi’an Institute of Technology,2006,26(1):83-86.
[7]刘百来,李祝龙,史永高,等.半刚性波形梁护栏受侧面碰撞的有限元仿真[J].西安工业大学学报,2007,27(3):187-290.LIU Bailai,LI Zhulong,SHI Yonggao,et al.Finite element simulation of side crashed semi-rigid guardrail of w-beam[J].Journal of Xi’an Technological University,2007,27(3):187-290.
[8]王艳丽,李祝龙,吴大中.钢波纹管涵洞的薄壳效应[J].公路交通科技,2008,25(5):86-90.WANG Yanli,LI Zhulong,WU Dazhong.Thin shell effect of corrugated steel culvert performance[J].Journal of Highway and Transportation Research and Development,2008,25(5):86-90.
[9]李祝龙,梁养辉,黄志福,等.低路堤荷载作用下钢波纹板拱桥应变的测试研究[J].武汉理工大学学报(交通科学与工程版),2013,37(5):939-942.LI Zhulong,LIANG Yanghui,HUANG Zhifu,et al.Experimental study on strain of corrugated steel arch bridge under loader load in low embankment[J].Journal of Wuhan University of Technology(Transportation Science&Engineering),2013,37(5):939-942.
[10]杨桂通.弹塑性力学引论[M].北京:清华大学出版社,2004.YANG Guitong.Introduction to Elasticity and Plasticity[M].Beijing:Tsinghua University Press,2004.
[11]骆志红.大直径钢波纹管涵有限元计算分析[J].交通科技,2011(1):40-42.LUO Zhihong.Finite element analysis of major diameter corrugated steel culvert[J].Transportation Science&Technology,2011(1):40-42.
[12]刘伟,汤连生,张庆华.车辆动载下路基土竖向动应力及扩散规律[J].重庆交通大学学报(自然科学版),2012,31(4):799-802.LIU Wei,TANG Liansheng,ZHANG Qinghua.Research on dynamic stress of subgrade soil under vehicle loads and its diffused rule[J].Journal of Chongqing Jiaotong University(Natural Science),2012,31(4):799-802.
[13]冯丽.考虑土-结相互作用的覆土波纹钢板圆管涵的力学性能分析[D].北京:北京交通大学,2009.FENG Li.Mechanics Behavior about Buried Corrugated Steel Culverts Considering Soil-structure Interaction[D].Beijing:Beijing Jiaotong University,2009.