首页期刊信息编委及顾问期刊发行联系方式使用帮助常见问题ENGLISH
位置:首页 >> 正文
三维编织钢纤维增强混凝土的冲击压缩性能
作者:季斌 余红发 麻海燕 方秦 姜锡权 宋海滨 程宇 姜大虎  
单位:南京航空航天大学土木工程系 解放军理工大学工程兵学院 解放军炮兵学院  
关键词:钢纤维增强混凝土  三维编织  动态力学性能  抗压强度  应变率  弹性模量 
分类号:TU528.572
出版年,卷(期):页码:2010,38(4):644-651
DOI:
摘要:

采用三维钢纤维编织技术与渍浆纤维混凝土成型工艺,成功制备出钢纤维体积率(φf)为5%(SC05)和10%(SC10)的三维编织钢纤维增强混凝土(3-D braid steel fiber reinforced concrete,3D-BSFC),采用直径为75mm的分离式霍普金森压杆(Split Hopkinson Pressure Bar,SHPB)装置研究了混凝土基体材料(SC0)及其相应的3D-BSFC试样在3种应变率下的冲击压缩力学性能。结果表明:在应变率约120s–1下,基体抗压强度为C50,试样SC0、试样SC05和试样SC10的冲击压缩强度分别是其静态强度的2.99倍、1.73倍和1.12倍,峰值应变达到0.0043,0.0079和0.0088,冲击弹性模量分别是其静态弹性模量的1.43倍、1.35倍和1.38倍,冲击压缩韧性指数分别达到1.22、3.12和8.21,与基准试样SC0相比,在应变率分别约为120s–1和130s–1时,试样SC05的冲击压缩强度分别提高了29%和21%,试样SC10分别提高了50%和45%。当应变率提高到130s–1时,试样SC0、试样SC05和试样SC10的峰值应变分别降低到0.0042,0.0060和0.0058,冲击压缩韧性指数分别提高到1.38,3.69和9.10。因此,3D-BSFC是应变率敏感材料,随着应变率的提高,材料的强度、弹性模量和韧性均有明显提高,峰值应变有所降低,而且φf越高,钢纤维的动态增强和增韧效果越明显。

how to cheat women who want to cheat wife cheat story
redirect how to cheat why women cheat on men they love

The dynamic compressive properties of 3-dimensional Braided Steel Fiber Reinforced Concrete(3D-BSFC) were investigated.By integrating 3D braiding technique of steel fibers with slurry infiltrated fiber reinforced concrete(SIFCON),3D-BSFC was successfully developed.Specimens SC0,SC05,SC10 with steel fiber volume fraction(φf) of 0,5% and 10% were prepared,and compressive strength of the matrix is C50.Dynamic compressive properties of those samples were tested by a φ75 mm Split Hopkinson Pressure Bar(SHPB),and three strain rate levels were included.Results showed that when the strain rate was about 120 s–1,the impact compressive strength of specimens SC0,SC05 and SC10 were 2.99,1.73 and 1.12 times of their corresponding static strength,respectively;the peak strains reached 0.004 3,0.007 9 and 0.008 8,respectively;the impact elastic modulus were 1.43,1.35 and 1.38 times of their static elastic modulus;the impact compressive toughness indices were 1.22,3.12 and 8.21.For the strain rate level of 120 s–1 and 130 s–1,the impact compressive strength of SC05 were increased by 29% and 21%,respectively,compared with SC0;and for SC10 these values were 50% and 45%.For the strain rate level of 130 s–1,the peak strains decreased to 0.004 2,0.006 0 and 0.005 8,the impact compressive toughness indices of specimens SC0,SC05 and SC10 reached 1.38,3.69 and 9.10,respectively Conclusions can be drawn that 3D-BSFC is a kind of strain rate-sensitive material.With the increase of strain rate level,its dynamic strength,elastic modulus and toughness also raise obviously,while there shows slightly decrease in peak strain.It is also observed that for specimen with higher φf value the increment on strength and toughness is more obvious.

redirect unfaithful spouse why women cheat on men they love
why married men cheat on their wives reasons wives cheat on husbands women cheat on men
基金项目:
国家“973”计划(2009CB623203);; 中国博士后基金(20070421036);; 2008年江苏省“六大人才高峰”高层次人才项目资助
作者简介:
women want men signs of unfaithful husband how do i know if my wife cheated
online reason why husband cheat married woman looking to cheat
online click open
redirect husband cheated unfaithful husband
redirect unfaithful spouse why women cheat on men they love
参考文献:

[1]赵国藩,彭少明,黄承逵.钢纤维混凝土结构[M].北京:中国建筑工业出版社,1999:6.ZHAO Guofan,PENG Shaoming,HUANG Chengkui.Structure of steel fiber reinforced concrete(in Chinese).Beijing:China Architecture&Building Press,1999:6. [2]LANKARD D R.Slurry infiltrated fiber concrete(SIFCON):Properties and applications[C]//Procceding MRS Symposium Potential for Very High Strength Cement-Based Materials,Pittsburg,Pennsylvania,1985,227–286. [3]HACKMAN L E,FARRELL M B,DUNHAM O O.Slurry infiltrated mat concrete(SIMCON)[J].Concr Int,1992,14(12):52–56. [4]BISCHOFF P H,PERRY S H.Impact behavior of plain concrete loading in uniaxial compression[J].J Eng Mech,1995,121(5):685–693. [5]ROSS C A,TEDESCO J W,STEVEN T K.Effects of strain rate on concrete strength[J].ACI Mater J,1995,92(1):37–47. [6]BHARGAVA J,RHRNSTROM A.Dynamic strength of polymer modified and fiber-reinforced concrete[J].Cem Concr Res,1977,7:199–208. [7]胡时胜,王道荣,刘剑飞.混凝土材料动态力学性能的实验研究[J].工程力学,2001,18(5):115–118.HU Shisheng,WANG Daorong,LIU Jianfei.Eng Mech(in Chinese),2001,18(5):115–118. [8]严少华,李志成,王明洋,等.高强钢纤维混凝土冲击压缩特性试验研究[J].爆炸与冲击,2002,22(3):237–241.YAN Shaohua,LI Zhicheng,WANG Mingyang,et al.Explosion Shock Waves(in Chinese),2002,22(3):237–241. [9]孙伟.钢纤维对高强混凝土的增强、增韧及阻裂效应的研究[J].东南大学学报,1991,21(1):50–57.SUN Wei.J Southeast Univ(in Chinese),1991,21(1):50–57. [10]焦楚杰,孙伟,高培正.钢纤维超高强混凝土动态力学性能[J].工程力学,2006,23(8):86–89.JIAO Chujie,SUN Wei,GAO Peizheng.Eng Mech(in Chinese),2006,23(8):86–89. [11]巫绪涛,胡时胜,陈德兴,等.钢纤维高强混凝土冲击压缩的试验研究[J].爆炸与冲击,2005,25(2):125–131.WU Xutao,HU Shisheng,CHEN Dexing,et al.Explosion Shock Waves(in Chinese),2005,25(2):125–131. [12]张育宁,方秦,刘小斌,等.高强高掺量钢纤维混凝土动力性能的SHPB试验研究[J].混凝土,2006,7(201):32–35.ZHANG Yuning,FANG Qin,LIU Xiaobin,et al.Concrete(in Chinese),2006,7(201):32–35. [13]MA Haiyan,Fang Qin,JI Bin,et al.Mechanical behavior of 3D-BSFC[C]//Proceedings of the1st International Conference on microstructure related durability of cementitious composites.Nanjing:RILEM Publications SARL,2008:13–15 [14]季斌,麻海燕,余红发,等.三维编织钢纤维增强渍浆混凝土的受压力学性能研究[J].南京航空航天大学学报,2009,41(5):688–692.JI Bin,MA,Haiyan,YU Hongfa,et al.J Nanjing Univ Aeronautic Astronautics(in Chinese),2009,41(5):688–692. [15]BISCHOFF P H,PERRY S H.Compressive behaviour of concrete at high strain rates[J].Mater Struct,1991,24(144):425–450. [16]ABRAMS D A.Effect of rate of application of load on the compressive strength of concrete[J].ASTM,1917,17(partⅡ):364–377. [17]JONES P G,RICHART F E.The effect of testing speed on strength and elastic properties of concrete[J].ASTM,1936,36(partⅡ):380–392. [18]EVANS R H.Effect of rate of loading on the mechanical properties of some materials[J].Ins Civil Eng,1942,18:296–306. [19]KATSUTA T.On the elastic and plastic properties of concrete in compression tests with high deformation velocity,PartⅠ[J].Trans Inst Jpn Arch(in Jpn),1943,29(5):268–274. [20]Idem,On the elastic and plastic properties of concrete in compression tests with high deformation-velocity,PartⅡ.ibid(in Japanese),1944,33(partⅠ):53–54. [21]THAULOW S.Rate of loading for compressive strength tests[J].Betong,1953,38(1):11–15. [22]WATSTEIN D.Effect of straining rate on the compressive strength and elastic properties of concrete[J].ACI,1953,49:729–744. [23]Idem,Properties of concrete at high rates of loading[C]//Symposium on Impact Testing.ASTM STP,1955,176:156–169. [24]HATANO T,TSUTAUMI H.Dynamic compressive deformation and failure of concrete under earthquake load[A]//2nd World Conference on Earthquake Engineering[C].Science Council of Japan,Tokyo,1960:1963–1978. [25]BAN S,MUGURUMA H.Behaviour of plain concrete under dynamic loading with straining rate comparable to earthquake loading[A]//2nd World Conference on Earthquake Engineering,Science Council of Japan,Tokyo,1960:1979–1993. [26]TAKEDA J.A loading apparatus for high speed testing of building materials and structures//2nd Japan Congress on Testing Materials,Kyoto,Japan Society for Testing Materials,1959:236–238. [27]TAKEDA J,TACHIKAWA H.The mechanical properties of several kinds of concrete at compressive,tensile,and flexural tests in high rates of loading[J].Trans Architect Inst Jpn(in Jpn),1962,77:1–6. [28]LUNDEEN R L.Dynamic and static tests of plain concrete specimens:Report I[R].Miscellaneous Paper No.6–609,US Army Engineers Waterways Experiment Station,Corps of Engineers,Vicksburg,Mississippi,1963. [29]HORIBE T,KOBAYASHI R.On mechanical behavior of rock under various loading-rates(summary,figures and tables in English)[J].Soc Mater Sci Jpn,1965,14(141):498–506(62–70). [30]WELL W L.Dynamic properties of plain Portland cement concrete[R].Technical Report No.8447,DASA130181,US Naval Civil Engineering Laboratory,Port Hueneme,California,1966. [31]ATCHLEY B L,FURR H L.Strength and energy absorption capabilities of plain concrete under dynamic and static loadings[J].ACI,1967,64:745–756. [32]HUGHES B P,GREGORY R.Concrete subjected to high rates of loading in compression[J].Mag Concr Res,1972,24(78):25–36. [33]MILLSTEIN L,SABNIS G M.Concrete strength under impact loading[C]//Concrete Structures Under Impact and Impulsive Loading,BAM,Berlin,G.Plauk,1982:10–111. [34]MAHIN S A,BERTERO V V.Rate of loading effects on uncracked and repaired reinforced concrete members[R].No.UCB/EERC72–9,Earthquake Engineering Research Center,University of California,Berkeley,1972. [35]ESCHE K,KRAUSE K.Der Einfiuss der Belastungs-geschwindigkeit auf Druckfestigkeit and Elastizitats-modul von Beton(The effect of loading rate on compressive strength and modulus of elasticity of concrete)[J].Materialprufung,1972,14(7):212–218. [36]SPARKS P R,MENZIES J B.The effect of rate of loading upon the static and fatigue strengths of plain concrete in compression[J].Mag Concr Res,1973,25(83):73–80. [37]BRESLER B,BERTERO V V.Influence of high strain rate and cyclic loading of unconfined and confined concrete in compression[C]//2nd Canadian Conference on Earthquake Engineering,Hamilton,Ontario,1975:1–13. [38]HJORTH O.Ein Beitrag zur Frage der Festigkeiten and des Verbundverhaltens von Stahl and Beton bei hohen Beanspruchungsgeschwindigkeiten(dissertation).Braunschweig:Universitat Carolo-Wilhelmina,Heft32,1976. [39]KVIRIKADZE O P.Determination of the ultimate strength and modulus of deformation of concrete at different rates of loading[C]//Testing in Situ of Concrete Structures,RILEM,Budapest,1977:109–117. [40]POPP C.Unterschungen fiber das Verhalten von Beton bei schlagartiger Beanspruchung[J].Deutscher Ausschuss für Stahlbeton,1977,281. [41]HUGHES B P,WATSON A J,Compressive strength and ultimate strain of concrete under impact loading[J].Mag Concr Res,1978,30(105):189–199. [42]FSGERLUND G,LARSSON B.Belongs slaghallfasthet(Impact strength of concrete)[J].Cement-och Betong Institutet(CBI),Stockholm,1979,forskning FO4:79. [43]PAULMANN K,STEINERT J.Beton bei sehr kurzer Belastungsgeschichte(Concrete under very short-term loading)[J].Betong,1982,32(6):225–228. [44]ROSTASY F S,SCHEUERMANN J,SPRENGER K H.Mechanical behaviour of some construction materials subjected to rapid loading and low temperature[J].Betonwerk+Fertigteil-Technik,1984,50(6):393–401. [45]ROSTASY F S,HARTWICH K.Compressive strength and deformation of steel fibre reinforced concrete under high rate of strain[J].Int Cem Compos Lightwt Concr,1985,7(1):21–28. [46]DILGER W H,KOCH R,KOWALCZYK R.Ductility of plain and confined concrete under different strain rates[J].ACI,1984,81(1):73–81. [47]MALVERN L E,ROSS C A.Dynamic response of concrete and concrete structures[R].Second Annual Technical Report,AFOSR Contract No.F49620–83–K007,1985.

open cheat women go
My wife cheated on me why wives cheat on husbands reasons married men cheat
why do wife cheat on husband why wifes cheat how to cheat wife
bystolic copay card click bystolic coupon voucher
服务与反馈:
文章下载】【加入收藏
中国硅酸盐学会《硅酸盐学报》编辑室
京ICP备10016537号-2
京公网安备 11010802024188号
地址:北京市海淀区三里河路11号    邮政编码:100831
电话:010-57811253  57811254    
E-mail:jccs@ceramsoc.com