聚氨酯-钢夹层复合材料结构抗泥石流冲击性能研究
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摘要
为提高框架结构抗泥石流冲击的能力,在方钢柱中填充聚氨酯材料,形成聚氨酯-钢夹层结构。借助有限元分析软件ABAQUS进行数值模拟,分别对聚氨酯-钢夹层结构和纯钢结构在黏性泥石流冲击作用下的各项响应指标进行对比。结果表明,聚氨酯-钢夹层结构承受的冲击力峰值仅稍大于纯钢结构,但位移显著降低,在冲击作用下能保持较好的完整性,应力响应也明显减小,能够更有效地抵抗泥石流冲击作用。
To improve the ability of frame structure to resist the impact of debris flow,square steel tubular column was filled with polyurethane to form a polyurethane-steel sandwich structure.Numerical simulation was carried out with the finite element analysis software ABAQUS to compare the dynamic response indexes of a polyurethane-steel sandwich structure and a pure steel structure under viscous debris flow impact.The results showed that compared with the pure steel structure,the peak value of the impact force in the polyurethane-steel sandwich structure was only slightly larger,however,the displacement was significantly reduced,it can maintain relatively good integrity under impact loads,and the stress response was also obviously reduced,which can make the structure more effectively resist the impact of debris flow.
To improve the ability of frame structure to resist the impact of debris flow,square steel tubular column was filled with polyurethane to form a polyurethane-steel sandwich structure.Numerical simulation was carried out with the finite element analysis software ABAQUS to compare the dynamic response indexes of a polyurethane-steel sandwich structure and a pure steel structure under viscous debris flow impact.The results showed that compared with the pure steel structure,the peak value of the impact force in the polyurethane-steel sandwich structure was only slightly larger,however,the displacement was significantly reduced,it can maintain relatively good integrity under impact loads,and the stress response was also obviously reduced,which can make the structure more effectively resist the impact of debris flow.
引文
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[16] 任够平,李珠,王蕊.低速侧向冲击下钢管混凝土柱挠度研究[J].工程力学,2008(5):170-175.Ren Gouping,Li Zhu,Wang Rui.The deflection of concrete filled steel tubular column under lateral impact at low speed[J].Engineering Mechanics,2008(5):170-175.(in Chinese)
[17] 薛启超,邹广平,何健,等.聚氨酯弹性体隔板夹层结构的等效参数计算[J].复合材料学报.2017(3):564-573.Xue Qichao,Zou Guangping,He Jian,et al.Equivalent parameters calculation for sandwich plate with polyurethane elastomer core reinforced by crossing walls[J].Acta Materiae Compositae Sinica,2017(3):564-573.(in Chinese)
[18] Li P Z,Liu S T,Lu Z.Experimental study on the performance of polyurethane-steel sandwich structure under debris flow[J].Applied Sciences,2017,7(10).
[19] 胡桂胜,陈宁生,邓明枫,等.甘肃舟曲三眼峪沟泥石流粗大颗粒冲击力特征分析[J].地球与环境,2011(4):478-484.Hu Guisheng,Chen Ningsheng,Deng Mingfeng,et al.Analysis of the characteristics of impact force of massive stones of the Sanyanyu debris flow gully in Zhouqu,Gansu province[J].Earth and Environment,2011(4):478-484.(in Chinese)
[20] 舟曲泥石流固体物源特征及预警预报研究[D].甘肃:兰州大学,2013.Solid source characteristics and early warning of debris flow in Zhouqu[D].Gansu:Lanzhou University,2013.(in Chinese)
[21] 米旭峰,朱海玲,杭振园.钢-聚氨酯组合管柱轴压性能试验[J].河海大学学报,2014(4):337-341.Mi Xufeng,Zhu Hailing,Hang Zhenyuan.Experimental research on axial compression behavior of steel-polyurethane composite tube[J].Journal of Hohai University,2014(4):337-341.(in Chinese)
[2] 胡凯衡,崔鹏,葛永刚.舟曲“8.8”特大泥石流对建筑物的破坏方式[J].山地学报,2012(4):484-490.Hu Kaiheng,Cui Peng,Ge Yonggang.Building destruction patterns by August 8,2010 debris flow in Zhouqu,Western China[J].Journal of Mountain Science,2012(4):484-490.(in Chinese)
[3] Zeng C,Cui P,Su Z,et al.Failure modes of reinforced concrete columns of buildings under debris flow impact[J].Landslides,2014:1-11.
[4] 薛启超.聚氨酯弹性体钢夹层的力学性能研究[D].哈尔滨:哈尔滨工程大学,2013.Xue Qichao.Mechanical properties study for sandwich plate system[D].Harbin:Harbin Engineering University,2013.(in Chinese)
[5] 何晓英.浆体与级配颗粒组合条件下泥石流冲击特性试验研究[D].重庆:重庆交通大学,2014.He Xiaoying.Experimental study on the shock characteristics of debris flow considering different slurry viscosity and gradation particles[D].Chongqing:Chongqing Jiaotong University,2014.(in Chinese)
[6] 李培振,李进,李唐振昊.泥石流冲击作用下砌体结构破坏机理研究[J].华中科技大学学报,2017(7):1-5.Li Peizhen,Li Jin,Litang Zhenhao.The failure mechanism of masonry structure under debris flow impact[J].J.Huazhong Univ.of Sci.& Tech,2017(7):1-5.(in Chinese)
[7] 王兆印.泥石流龙头运动的实验研究及能量理论[J].水利学报,2001(3):18-26.Wang Zhaoyin.Experimental study on debris flow head and the energy theory[J].Journal of Hydraulic Engineering,2001(3):18-26.(in Chinese)
[8] 黄何勋,李睿,陈志强.实心T墩在泥石流块石作用下的动力响应分析[J].公路,2016(3):58-61.Huang Hexun,Li Rui,Chen Zhiqiang.Dynamic response analysis of solid T-pier under the action of stone in debris flow[J].Highway,2016(3):58-61.(in Chinese)
[9] 徐志英.岩石力学[M].3版.北京:中国水利水电出版社,2007.Xu Zhiying.Rock mechanics[M].Third Edition.Beijing:Water Resources and Electric Power Press,2007.(in Chinese)
[10] Hungr O,Morgan G C,Kellerhals.Quantitative analysis of debris flow torrent hazards for design of remedial measures [J].Canadian Geotechnical Journal,1984,21:663- 677.
[11] Zeng Chao,Cui Peng,Su Zhiman,et al.Failure modes of reinforced concrete columns of buildings under debris flow impact[J].Landslides,2014:1-11.
[12] 黄英,丁明涛,庙成,等.云南蒋家沟泥石流运动特征及其发展趋势[J].长江流域资源与环境,2015(4):1434-1442.Huang Ying,Ding Mingtao,Miao Cheng,et al.Characteristics and evolution of debris flow motion in Jiangjia gully in Yunnan province[J].Resources and Environment in the Yangtze Basin,2015(4):1434-1442.(in Chinese)
[13] 李培振,程远超,高宇,等.底层框架柱在黏性泥石流冲击作用下的性能分析[J].结构工程师,2016(3):15-21.Li Peizhen,Cheng Yuanchao,Gao Yu,et al.Study on performance of the bottom column of a frame structure under viscous debris flow impact[J].Structural Engineers,2016(3):15-21.(in Chinese)
[14] 王秀丽,韩志平,李文侠,等.泥石流大块石冲击下钢拱拦挡坝的抗冲击性能[J].兰州理工大学学报,2017(4):116-121.Wang Xiuli,Han Zhiping,Li Wenxia,et al.Impact resistance performance of steel-arch blocking dam under shock of rock blocks in debris flow[J].Journal of Lanzhou University of Technology,2017(4):116-121.(in Chinese)
[15] 杨锦越,付朝江,陈洪均.冲击荷载作用下钢框架的动态响应分析[J].福建工程学院学报,2017(4):317-323.Yang Jinyue,Fu Chaojiang,Chen Hongjun.Dynamic response analysis of steel frame subjected to impact load[J].Journal of Fujian University of Technology,2017(4):317-323.(in Chinese)
[16] 任够平,李珠,王蕊.低速侧向冲击下钢管混凝土柱挠度研究[J].工程力学,2008(5):170-175.Ren Gouping,Li Zhu,Wang Rui.The deflection of concrete filled steel tubular column under lateral impact at low speed[J].Engineering Mechanics,2008(5):170-175.(in Chinese)
[17] 薛启超,邹广平,何健,等.聚氨酯弹性体隔板夹层结构的等效参数计算[J].复合材料学报.2017(3):564-573.Xue Qichao,Zou Guangping,He Jian,et al.Equivalent parameters calculation for sandwich plate with polyurethane elastomer core reinforced by crossing walls[J].Acta Materiae Compositae Sinica,2017(3):564-573.(in Chinese)
[18] Li P Z,Liu S T,Lu Z.Experimental study on the performance of polyurethane-steel sandwich structure under debris flow[J].Applied Sciences,2017,7(10).
[19] 胡桂胜,陈宁生,邓明枫,等.甘肃舟曲三眼峪沟泥石流粗大颗粒冲击力特征分析[J].地球与环境,2011(4):478-484.Hu Guisheng,Chen Ningsheng,Deng Mingfeng,et al.Analysis of the characteristics of impact force of massive stones of the Sanyanyu debris flow gully in Zhouqu,Gansu province[J].Earth and Environment,2011(4):478-484.(in Chinese)
[20] 舟曲泥石流固体物源特征及预警预报研究[D].甘肃:兰州大学,2013.Solid source characteristics and early warning of debris flow in Zhouqu[D].Gansu:Lanzhou University,2013.(in Chinese)
[21] 米旭峰,朱海玲,杭振园.钢-聚氨酯组合管柱轴压性能试验[J].河海大学学报,2014(4):337-341.Mi Xufeng,Zhu Hailing,Hang Zhenyuan.Experimental research on axial compression behavior of steel-polyurethane composite tube[J].Journal of Hohai University,2014(4):337-341.(in Chinese)