高填方路基大孔径钢波纹管涵洞有限元分析
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摘要
通过钢波纹管涵洞管周不同断面的应变值的有限元计算结果与现场实测结果进行对比,采用有限元模型,对不同填土高度在公路-Ⅰ级荷载作用下的钢波纹管涵洞受力变形进行分析。结果表明:管顶0°～管周45°的压应变逐渐增大,而管周150°～180°逐渐减小,管周45°～120°波动变化;波峰和波侧都在管周120°出现最大应变值,而波谷在管周90°出现最大应变值;管周90°、120°应作为重点位置观测。
By comparing the results of strain values of different sections of the corrugated steel pipe culvert obtained by finite element calculation and field test,the finite element model was applied to carry out the analysis of deformation of the corrugated culvert underΙ-level load with different depths of fill.The results show that the compressive strain at 0°～45° of the circumference gradually increases, while the compressive strain at 150° ～180° of the circumference gradually decreases,and the value at 45°～120°of the circumference fluctuates;both the maximum strain values of the crest and the wave side appear at 120° of the circumference,while that of the trough appears at 90°of the circumference;spots at 90°and 120°of the circumference are key locations to observe.
By comparing the results of strain values of different sections of the corrugated steel pipe culvert obtained by finite element calculation and field test,the finite element model was applied to carry out the analysis of deformation of the corrugated culvert underΙ-level load with different depths of fill.The results show that the compressive strain at 0°～45° of the circumference gradually increases, while the compressive strain at 150° ～180° of the circumference gradually decreases,and the value at 45°～120°of the circumference fluctuates;both the maximum strain values of the crest and the wave side appear at 120° of the circumference,while that of the trough appears at 90°of the circumference;spots at 90°and 120°of the circumference are key locations to observe.
引文
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[3]李长江,胡滨,梁养辉,等.季冻区浅埋地基钢波纹管涵洞施工关键技术[J].筑路机械与施工机械化,2016,33(10):91-94.
[4]张红宇,胡滨,梁养辉,等.大孔径钢波纹管涵洞分层土压力及效益分析[J].筑路机械与施工机械化,2015,32(12):70-72.
[5]胡小兵,李祝龙,梁养辉,等.高路堤钢波纹管涵与钢筋混凝土拱涵土压力对比分析[J].筑路机械与施工机械化,2015,32(9):40-45.
[6]孙伯文,李祝龙,刘洪林.大孔径钢波纹涵洞在河北公路中的应用研究[J].山西建筑,2010,36(8):263-264.
[7]高彦婷,李永刚.沟埋箱形涵洞垂直土压力的有限元模拟分析[J].科学之友,2008(27):15-16.下转第页75
[8]李祝龙,章金钊.高原多年冻土地区波纹管涵应用技术研究[J].公路,2000(2):28-31.
[9]贾彦武.公路路基钢波纹管涵洞受力与变形特性室内模拟试验研究[D].西安:长安大学,2012.
[10]明艳.公路钢波纹管涵洞设计内容[J].黑龙江交通科技,2011,34(1):101-102.
[11]刘刚.高填方路堤下钢波纹管涵洞受力与变形特性研究[D].西安:长安大学,2012.
[12]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.
[13]唐赛,李祝龙,梁养辉,等.双层钢波纹管涵注浆有限元分析[J].筑路机械与施工机械化,2015,32(7):77-81.
[14]刘百来.钢波纹管材料在公路工程中的应用[D].西安:长安大学,2004.
[15]周义雄,梁养辉,李祝龙,等.钢波纹管涵洞在公路工程中的应用研究[J].筑路机械与施工机械化,2013,30(11):48-55.
[16]冯忠居,乌延玲,贾彦武,等.钢波纹管涵洞受力与变形特性模拟试验研究[J].岩土工程学报,2013,35(1):187-192.
[17]安静洁.钢波纹管涵施工工艺及技术要求[J].山西交通科技,2006(6):39-40.