|Table of Contents|

Numerical Simulation of Blast Resistance of Concrete-filled Steel Tube Columns Confined with FRP(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2020年02期
Page:
35-43
Research Field:
Publishing date:

Info

Title:
Numerical Simulation of Blast Resistance of Concrete-filled Steel Tube Columns Confined with FRP
Author(s):
ZHAO Jun-hai DONG Jing ZHANG Dong-fang LI Ying-ping
(School of Civil Engineering, Chang'an University, Xi'an 710061, Shaanxi, China)
Keywords:
CFST confined with FRP blast loading numerical simulation dynamic response
PACS:
TU398
DOI:
10.19815/j.jace.2019.05023
Abstract:
In order to investigate the blast resistance of concrete-filled steel tube(CFST)columns confined with fiber reinforced polymer(FRP), the numerical model of CFST columns confined with FRP under blast loading with a scaled distance of 0.28 m·kg-1/3 was developed. The high-energy explosive material model and state equation in LS-DYNA non-linear finite element program were used to exert explosive load, and the multi-material fluid-solid coupling method was adopted in numerical simulation. The proposed model was verified by the available test data. The numerical results illustrated the displacement-time history of the column and the equivalent stress of steel tube, concrete and FRP, and the change law and distribution characteristics were analyzed. In addition, the effects of FRP layers, steel tube yield strength and concrete strength on CFST columns confined with FRP were studied by changing the corresponding parameters. The results show that FRP restraint can effectively improve the blast resistance of concrete filled steel tube, and its vulnerable parts mainly occur in the middle and both ends of the column. Increasing FRP layers, steel tube yield strength and concrete strength can improve the blast resistance of columns. The proposed finite element model can be extended to the blast research on CFST column confined with FRP with different scaled distances and section shapes. These results provide certain basis for blast resistance design of CFST columns confined with FRP.

References:

[1] 韩林海,陶 忠,刘 威.钢管混凝土结构——理论与实践[J].福州大学学报:自然科学版,2001,29(6):24-34.
HAN Lin-hai,TAO Zhong,LIU Wei.Concrete Filled Steel Tubular Structures from Theory to Practice[J].Journal of Fuzhou University:Natural Science,2001,29(6):24-34.
[2]UY B,TAO Z,HAN L H.Behaviour of Short and Slender Concrete-filled Stainless Steel Tubular Columns[J].Journal of Constructional Steel Research,2011,67(3):360-378.
[3]EINDE L V D,ZHAO L,SEIBLE F.Use of FRP Composites in Civil Structural Applications[J].Construction and Building Materials,2003,17(6/7):389-403.
[4]UOMOTO T,MUTSUYOSHI H,KATSUKI F,et al.Use of Fiber Reinforced Polymer Composites as Reinforcing Material for Concrete[J].Journal of Materials in Civil Engineering,2002,14(3):191-209.
[5]TAO Z,HAN L H,WANG L L.Compressive and Flexural Behaviour of CFRP-repaired Concrete-filled Steel Tubes After Exposure to Fire[J].Journal of Constructional Steel Research,2007,63(8):1116-1126.
[6]LIU L,LU Y Y.Axial Bearing Capacity of Short FRP Confined Concrete-filled Steel Tubular Columns[J].Journal of Wuhan University of Technology:Materials Science Edition,2010,25(3):454-458.
[7]PARK J W,HONG Y K,CHOI S M.Behaviors of Concrete Filled Square Steel Tubes Confined by Carbon Fiber Sheets(CFS)Under Compression and Cyclic Loads[J].Steel and Composite Structures,2010,10(2):187-205.
[8]SUNDARRAJA M C,PRABHU G G.Experimental Study on CFST Members Strengthened by CFRP Composites Under Compression[J].Journal of Constructional Steel Research,2012,72:75-83.
[9]朱春阳.FRP-钢管混凝土结构静动力学性能研究[D].大连:大连海事大学,2015.
ZHU Chun-yang.Study on Static and Dynamic Properties of Concrete Filled FRP-steel Tubes[D].Dalian:Dalian Maritime University,2015.
[10]陈 忱,赵颖华.FRP钢管混凝土构件抗冲击性能仿真分析[J].振动与冲击,2013,32(19):197-201.
CHEN Chen,ZHAO Ying-hua.Simulation for Anti-impact Performance of Concrete-filled FRP-steel Tubes[J].Journal of Vibration and Shock,2013,32(19):197-201.
[11]ALAM M I,FAWZIA S,ZHAO X L,et al.Performance and Dynamic Behaviour of FRP Strengthened CFST Members Subjected to Lateral Impact[J].Engineering Structures,2017,147:160-176.
[12]WANG W Q,WU C Q,LI J.Numerical Simulation of Hybrid FRP-concrete-steel Double-skin Tubular Columns Under Close-range Blast Loading[J].Journal of Composites for Construction,2018,22(5):04018036.
[13]徐坚锋.CFRP钢管混凝土柱抗爆动力响应研究[D].西安:长安大学,2014.
XU Jian-feng.Analysis on the Dynamic Response of Concrete filled CFRP-steel Tube Columns Under Explosive Load[D].Xi'an:Chang'an University,2014.
[14]BUCHAN P A,CHEN J F.Blast Resistance of FRP Composites and Polymer Strengthened Concrete and Masonry Structures — A State-of-the-art Review[J].Composites Part B:Engineering,2007,38(5/6):509-522.
[15]潘金龙,罗 敏,周甲佳.爆炸荷载下CFRP加固圆柱的动力响应和破坏机理[J].天津大学学报,2010,43(9):755-761.
PAN Jin-long,LUO Min,ZHOU Jia-jia.Dynamic Responses and Failure Mechanism of Reinforced Concrete Cylindrical Column Wrapped with CFRP Under Blast Loading[J].Journal of Tianjin University,2010,43(9):755-761.
[16]ZHANG F R,WU C Q,WANG H W,et al.Numerical Simulation of Concrete Filled Steel Tube Columns Against Blast Loads[J].Thin-walled Structure,2015,92:82-92.
[17]LI J,HAO H,WU C Q.Numerical Study of Precast Segmental Column Under Blast Loads[J].Engineering Structures,2017,134:125-137.
[18]COWPER G R,SYMONDS P S.Strain Hardening and Strain Rate Effect in the Impact Loading of Cantilever Beams[J].Small Business Economics,1957,31(3):235-263.
[19]HOLMQUIST T J,JOHNSON G R,COOK W H.A Computational Constitutive Model for Concrete Subjected to Large Strains,High Strain Rates,and High Pressure[C]//JACKSON N,DICKERT S.Proceedings of 14th International Symposium on Ballistics.Washington DC:American Defense Preparedness Association,1995:591-600.
[20]JOHNSON G R,COOK W H.Fracture Characteristics of Three Metals Subjected to Various Strains,Strain Rates,Temperatures and Pressures[J].Engineering Fracture Mechanics,1985,21(1):31-48.
[21]CADONI E,LABIBES K,ALBERTINI C,et al.Strain-rate Effect on the Tensile Behaviour of Concrete at Different Relative Humidity Levels[J].Materials and Structures,2001,34(1):21-26.
[22]孙珊珊.爆炸荷载下钢管混凝土柱抗爆性能研究[D].西安:长安大学,2013.
SUN Shan-shan.Investigation on Dynamic Response of CFST Columns Subjected to Blast Loading[D].Xi'an:Chang'an University,2013.
[23]GHORBI E,SOLTANI M,MAEKAWA K.Development of a Compressive Constitutive Model for FRP-confined Concrete Elements[J].Composites Part B:Engineering,2013,45(1):504-517.
[24]NAM J W,KIM H J,KIM S B,et al.Analytical Study of Finite Element Models for FRP Retrofitted Concrete Structure Under Blast Loads[J].International Journal of Damage Mechanics,2009,18(5):461-490.
[25]KIMURA H,ITABASHI M,KAWATA K.Mechanical Characterization of Unidirectional CFRP Thin Strip and CFRP Cables Under Quasi-static and Dynamic Tension[J].Advanced Composite Materials,2001,10(2/3):177-187.
[26]MUTALIB A A,HAO H.Development of P-I Diagrams for FRP Strengthened RC Columns[J].International Journal of Impact Engineering,2011,38(5):290-304.
[27]孙珊珊,赵均海,贺拴海,等.爆炸荷载下钢管混凝土墩柱的动力响应研究[J].工程力学,2018,35(5):27-35,74.
SUN Shan-shan,ZHAO Jun-hai,HE Shuan-hai,et al.Dynamic Response of Concrete-filled Steel Tube Piers Under Blast Loadings[J].Engineering Mechanics,2018,35(5):27-35,74.
[28]刘 路.不同防护方式下钢筋混凝土墩柱的抗爆性能试验研究[D].南京:东南大学,2016.
LIU Lu.Experimental Study of Differently Protective RC Piers Under Blast Loading[D].Nanjing:Southeast University,2016.
[29]石少卿,康建功,汪 敏,等.ANSYS/LS-DYNA在爆炸与冲击领域内的工程应用[M].北京:中国建筑工业出版社,2011.
SHI Shao-qing,KANG Jian-gong,WANG Min,et al.The Engineering Application of ANSYS/LS-DYNA in the Field of Explosion and Impact[M].Beijing:China Architecture & Building Press,2011.
[30]龚顺风,邓 欢,朱升波,等.近爆作用下钢筋混凝土板动态破坏的数值模拟研究[J].振动与冲击,2012,31(2):20-24,100.
GONG Shun-feng,DENG Huan,ZHU Sheng-bo,et al.Numerical Simulation for Dynamic Failure of a Reinforced Concrete Slab Under Close-in Explosion[J].Journal of Vibration and Shock,2012,31(2):20-24,100.

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Last Update: 2020-04-21