2006-2007 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

Dong, SL

Teng, JG

Wong, YL

Yang, YF

Yu, T

2006-2007 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishedVoR allowe

PolyU Institutional Repository

?8??5?2006?10??　?　?　?　?　?　?Progress in Steel Bui lding Structu resVol. 8 No. 5　Oct. 2006收稿日期:2006 - 03 - 27;收到修改稿日期:2006 - 04 - 17基金项目:国家杰出青年基金;香港 、澳门青年学者合作研究基金(50329802);香港理工大学青年教授基金(1ZE - 06)作者简介:滕锦光(1964 -),男 ,博士 ,教授 ,主要从事 FRP结构、钢结构 、薄壳结构及结构力学的研究。 E-mail:cejg teng@polyu. edu. hk余　涛(1981 -),男 ,博士研究生 ,主要从事 FRP -钢 -混凝土组合结构的研究。FRP? -??? -???????????????????滕锦光1 ,余　涛1 ,黄玉龙1 ,董石麟2 ,杨有福3(1.?????? ???????? ,?? ??;2.???? ????? ,??　310027;3.???? ?????? ,??　350002)?　?:　FRP ?-??? -?????(DSTC)????????? ,? FRP?? 、???????????????????? , ????????????????????????????????????。????????????????? ,??????????????????? ,????????????。??????, ?? DSTC ???? ,? FRP????????????????? , ??????????。?????????????? -???? ,????????????, ?????????????。???:　FRP;???;????;????;???????:TU 398. 9　　　　　?????:A　　　　　????:1671 - 9379(2006)05 - 0001 - 07Behavior of Hybrid FRP-Concrete-Steel Tubular Columns:Experimental and Theoret ical StudiesTENG J in-guang 1 , YU Tao1 , WONG Y u-long 1 , DONG S hi-lin 2 , Y ANG You-f u 3(1. Department o f Civil and St ructural Engineering , The H ong Kong Po ly technic University , Hong Kong , China;2. Department o f Civil Engineering , Zhejiang University , Hangzhou 310027 , China;3. College o f Civil Engineering , Fuzhou University , Fuzhou 350002 , China)Abstract:　Hybrid FRP-concrete-steel double-skin tubular colums are a new form of hybrid member s recently proposed by thefirst author. The new column consists of an outer tube made of fiber-reinforced po lymer (FRP) and an inner tubemade of steel , with the space betw een filled with concrete. In this new hybrid column , the three constituent materials areoptimally combined to achieve several advantages not available with existing columns. In this paper , the section forms of thenew column are first introduced. Results from axial compression tests and four-point bending tests are next presented to dem-onstrate some of the expected advantages. These test results confirm that the concrete in the new column is very effectivelyconfined by the two tubes , leading to a very ductile response. Based on the stress-strain curves from the axial compressiontests , a section analy sis for the bending tests is descibed and is shown to predict the test results reasonably closely.Keywords:　FRP;hybrid columns;axial compression;four-point bending;ductility1　????? ,????????(FRP)???????????????????????????。????? ,FRP??????????????????? ,?? ,?? FRP ?????????????????[ 1] 。?? ,FRP??????????????? ,?????? FRP???? FRP ??????????　　　 ? ? ? ? ? ? ? ? 8 ?　?????????? ,?? FRP ?? 、FRP ????????? FRP??。????? ,FRP???????? ,????? 、?????? 、?????????????? ,????????????????????:?? ,???????????? ,??????????????;?? ,?????? FRP????????;?? ,FRP ??????? ,????????? ,? FRP ??????? ,???????? ,???? FRP ????????????????。?? ,??????????? FRP?????????。??? FRP??????????? ,????????????? ,?? ,? FRP ????????????????:1)?????????? ,????;2) FRP?????????;3) FRP ??????????????。????????????????? 3 ,????????? FRP?????????????????。?????? ,??????????? FRP ??????????????? ,? FRP?????????????????????? ,???????????。????????????????????? ,? FRP? -??? -?????(DSTC)。??????? 、?????? FRP 、?????????? ,?????????????????;?????????????????????????? ,????????????。2　????????????????????? ,??????????????????? ,????????????。???????????????????????????。?????????? 20?? 80 ????[ 2] ,????????????????????????[ 3～ 8] 。????????????????? ,????????????? ,???????????。??? ,? FRP??????????????????[ 9 ～ 13] 。Fam? Rizkalla[ 12]??? FRP ???????????? ,???????????? ,??? 、???? FRP ?。???????????????? ,? FRP???????????????????????。FRP ??????????? ,???????? ,??????????? ,?????????? 、?????? 、???????? 、??????????。?? ,?? FRP ???????????? ,???????????????? ,??????FRP? ,??????。???? FRP ???????? ,????????????? FRP ?? 、????????????????????????:FRP? -??? -?????(DSTC)。???????? , DSTC??????????????????? FRP ?。FRP ????????????? ,????????? ,??????????????????。???????????????? ,???????????????。????????? ,??????????:??? ,??????????? FRP??????????????????????;???????? ,?? FRP???????????????????????????????????????;?????? ,??????????? FRP ???????。?? FRP?????? ,??????????:??????????????;????????????????? ,????? ,???????????;???????? ,?????????????????。?? ,???????????(????)?????? 、FRP???????????????????。? 1????????????????? ,??????????? 1(a)? 1(d)?????????????。DSTC??????? ,???????????? ,?? 1(d)??。?????? ,???????????????????? ,????????????????? ,?????????????? FRP??????????????。? 1　?????????3　?????????????????????? ,??????????????????? ,??????????。2? 5 ? FRP ? -??? -??????????????????? 　　?????????????????。3. 1　????????????? 6??? ,?????? 2?????。???????? 152. 2mm , ???305mm ,???????????????。????? ,?????? FRP ? ,?????????????? FRP????????????? FRP? ,??????????????????[ 14] 。 Shahawy ?[ 15]????? ,???? FRP ???????????????。?????? 1 ? 、2?? 3 ? FRP ? ,???FRP?? 3 ???。???????????? 1 ??。????? 6? FRP?????(FCC)?????? 3???????????。????????????? ,??????? 、???????????? 352. 67M Pa 、380. 4MPa ?207. 28GPa 。?? ASTM ??[ 16] ??? 6 ? FRP ????????? ,???? ,???????? 0. 17mm?? , FRP ?????? 1825. 5MPa , ?????80. 1GPa 。???????? 、????????????????(152. 5mm ×305mm)???? , ???30. 18GPa 、39. 64MPa? 0. 002628。? 1　?????????试件 FRP 管 钢管DS1A , DS1B 1 层DS2A , DS2B 2 层DS3A , DS3B 3 层外直径=76. 1mm厚度=3. 2mm　　???????? 3???:(1)?????????? ,????? PVC ?????????? ,??????????(? 2);(2)?????;(3)??????? ,?? PVC? ,???????????? FRP?(? 3)。? 2　????????? 3　????? FRP?　　FRP ???????????? ,???????? ,??????????? 150mm 。3. 2　?????????????????????(???10mm),FRP ???? 90°?????????(???20mm),??????????。?????????????? ,?? 4 ??。??????????????????(LVDT)????? 120mm ????????。???? MTS ?? ,??????? 0. 003mm s - 1 。??????? ,???? 、????? ,????????????。? 4　?????????3. 3　???????????????????? -?????? ,????? FRP??????。?? DS2A???????????? 5 ??。????????????? 2 ?。?? , P co???????????????????????(?543. 5 kN),P s????????????????(?273. 8 kN)。?? ,??????????????????? FRP ?????????? ,????????3　　　 ? ? ? ? ? ? ? ? 8 ?　? 817. 3 kN 。?????????????? Pc ?? ,???????????? εu ??。εco????????????。? 6????????????? -????。? 7 ????? DSTC??????? -?????? ,????????? LVDT ????????????(120mm)??。? 5　??????????? 2　????????试件 Pc /kN Pc 平均值 /kN Pc /(Pco+P s) εu平均值(×10- 6) εu /εcoDS1A 793. 75DS1B 829. 27811. 5 0. 99 14542 5. 53DS2A 1044. 2DS2B 1024. 81034. 5 1. 27 20204 7. 69DS3A 1214. 0DS3B 1201. 91208. 0 1. 48 23541 8. 96? 6　????????? -????? 7　???????? -????　　?? 2???? ,?????? FRP??????????? ,?????????????????????? ,????? FRP????????????? ,???????? FRP????????????????????????????? 27%? 48%,?? ,????????? FRP ?????? ,?? FRP?????????????[ 1] 。?? 7 ???? ,??????? FRP ?????? -?????????? ,????? FRP?????? -???????????。?? 6 ???????????? ,???? 、????? FRP ????????????????????????? 5. 53 ,7. 69? 8. 96?(?? 2)。???????? DSTC? FRP ?????????? ,??? DSTC? FCC????????? -???? ,?? Lam ? Teng[ 17] ????? - ????????? ,?? Lam ? Teng???????? FCC??? FRP????????????。DSTC????????????????????? ,???????????????????????????????????????????。??????????4? 5 ? FRP ? -??? -??????????????????? 　　??????????? ,?????????? ,????????????????????。?????? ,?????? DSTC????????????????????????????。? 8 ～ ? 10 ????????? 、????? FRP?? DSTC? FCC???? - ??????? ,??FCC1A(B)、FCC2A(B)? FCC3A(B)??????? 、????? FRP?? FRP??????????。?? , DSTC??????? -?????FCC????? 8　???? FRP??????? -??????? 9　???? FRP??????? -??????? 10　???? FRP??????? -??????????。??? ,?????? ,????????? ,DSTC?????? FRP??????? FCC?????????????。???????? ,Lam ? Teng???????????? FRP ?????? ,?????????????? FRP ??????。?????? ,????FRP???????(0. 073)? Lam? Teng ???????????(0. 07)??? ,? Lam? Teng[ 17] ?? ,????????????? ,?????????????????。?? ,?? Lam? Teng ????????????? -??????? 8 ??? ,?? ,??????????????。?? ,???????? FRP ??? ,Lam? Teng?????????。4　?????????? 1(d)?? DSTC??????????????? ,??????????????。4. 1　??????? 3 ??? ,?????? 152. 5mm ,??? 1500mm ,?????????????? ,??????(????????)?? 18. 2mm 。3 ????????? FRP ?????。???????? 3??。? 3　?????????试件 FRP 管 钢管DSB1 无DSB2 1层DSB3 2层外直径=76. 1mm厚度=3. 5mm　　?????????????。???? ,??????(?? 0. 2%????)、???????????? 340. 3MPa 、444. 5MPa? 192. 8GPa。?? FRP ????????????????。?????????????????(152. 5mm×305mm)???? ,??? 33. 37MPa? 0. 002502。4. 2　?????????? 11??。????? 1? 2??????????(??? DSB1 ???? 2 ??????),??? 1 、2 、3?????????? LVDT ??????????;?? ,??????? LVDT ???????? 、??????????? ,??????????????????。???????????????????。5　　　 ? ? ? ? ? ? ? ? 8 ?　? 11　???????????4. 3　????????????????? -????。???? DSB2 ? DSB3 ,???????? 125mm ? ,??????????????。???? DSB1 ,??????? ,???????????;?????????????? ,?????? ,?????。? 12????????? -??????(??????????????????),?? ,???????????。????????????????? ,???? ,??????????? 12 ???????。?????? ,???? FRP ???(DSB2 ?DSB3)????????? FRP ???(DSB1)??????? ,??????? ,?? DSB1 ????????? ,??? DSB2? DSB3????????????????? ,???????。?? 12 ???? ,FRP?????????????????? ,?? DSB2(???? FRP ?)??? - ???????? DSB1(???? FRP?)??。　　?? DSB1 ? DSB2 ?????????? 13 ??。???? DSB1 ?? FRP?? ,??????? ,????????????????????? ,?? 13(a)??。???????????????? 1/10?? ,??????????????????。????? FRP ???? ,????????????????? ,????????????????? ,????????? ,?? 13(b)??。???? DSB2 ? DSB3???????????? ,?????????? ,??????????(?????)(? 12)。? 12　???????? -????????? 13　????????????4. 4　??????????? ,???????????????? ,???????????。??????? ,????? - ????????????????;??FRP???????? ,???????? /?????。??????????????????? , ????????????? ,?????????? ,????????? 130με。????????? -????????????:1)?????????????????????????????? -?????????;2)????????????????????????? ,??? 1 ??????? -??????????? - ????。?????? ,???????????????????????。???????:(1)?????????????????;(2)??????? 、?????????????6? 5 ? FRP ? -??? -??????????????????? 　　???? ,?????????????;(3)????????????。? 14(a)- (b)????????????????-???????????? ,??????????????????。?? ,?????? FRP ?????? ,????????????? ,???????FRP?????? ,?????????? ,???????????????????? FRP ?????????????????。? 14　?????????????????5　?????????? FRP ?? 、??????????????? FRP? -??? -?????。??????????????????????????。?????????????????? ,??????????????。?????? ,??????????? ,????? FRP?????????? ,???????;??FRP?????????????。?????????????? -???? ,???????????? ,?????????????。????????? ,???????????????:?????? ,???? ,?????? ,?????。????:[ 1 ] 　T eng , J. G. , Chen , J. F. , Smith , S. T. and Lam , L. , FRPStreng thened RC Structures , John Wiley &Sons Ltd , 2002.[ 2 ] 　Shakir-Khalil , H. and Illouli , S. , Composite columns ofconcentric steel tubes , In Proceedings , Conference on the De-sign and Constructio n of No n-Conventional Structures , 1 ,London , December 1987 , pp. 73 - 82.[ 3 ] 　Shakir-Khalil , H. , Composite co lumns of double-skinnedshells , Journal of Constructional Steel Research 1991 , 19 ,pp. 133 - 152.[ 4 ] 　Wei , S. , Mau , S. T. , Vipulanandan , C. and M ant rala, S.K. , Performance of new sandwich tube under axial loading:experiment , Journal of structural Engineering , ASCE 1995 ,121(12), pp. 1806 - 1814.[ 5 ] 　??? , ??? , ??? , ????????????????????? , ????????? , 8(3), pp. 75 - 80.1995.[ 6 ] 　Yagishita , F. , Kitoh , H. , Sugimoto , M . , Tanihira , T.and Sonoda , K. , Double skin composite tubular columnssubjected to cyclic horizontal fo rce and constant axial force,P roceeding s of the Six th ASCCS Interna tional Co nference onSteel-Concrete Composite Structures , 2000 , pp. 497 - 503.[ 7 ] 　Zhao, X. L. , Grzebieta, R. and Elchalakani , M. , Tests of con-crete-filled double skin CHS composite stub columns, Steel andComposite Structures 2002 , 2(2), pp. 129- 146.[ 8 ] 　?? , ??? , ?? , ?????????????????????? , ?????? 2003 , 36(2) , pp. 33 - 40.[ 9 ] 　M irmiran , A . and Shahawy , M . , Behavior of concrete col-umns confined by fiber composites , Journal of Structural En-gineering , ASCE 1997 , 123(5), pp. 583 - 590.[ 10] 　??? , ??? , ??? , ??? , ????????????????? , ????????? 2000 , 33(1) , pp. 73- 76.[ 11] 　Fam , A . Z. and Rizkalla, S. H. , Confinement model for axi-ally loaded concrete confined by circular fiber-reinforced po ly-me r tubes , ACI Structural Journal 2001 , 98(4) , pp. 451 -461.[ 12] 　Fam , A . Z. and Rizkalla , S. H. , Behavior of axially loadedconcrete-filled circular fiber-reinforced polymer tubes , ACIStructural Journal 2001 , 98(3), pp. 280 - 289.[ 13] 　Xiao , Y. , Applications of FRP composites in concrete col-umn , Advances in Structural Engineering 2004 , 7(4), pp.335- 343.[ 14] 　Lam , L. and T eng , J. G. , U ltima te condition of FRP-con-fined concrete, Journal of Compo sites for Construction ,ASCE 2004 , 8(6), pp. 539 - 548.[ 15] 　Shahawy , M . , M irmiran , A. and Beitelman , T. , T ests andmodeling of carbon-w rapped concrete co lumns , Composites:Par t B-Engineering 2000 , 31(6～ 7) , pp. 471 - 480.[ 16] 　AS TM D 3039 , Standard T est M ethod fo r Tensile Propertiesof Polymer M atrix Composite M aterials , 2000.[ 17] 　Lam , L. and Teng , J. G. , Design-o riented stress-strainmodel for FRP-confined concrete, Construction and BuildingM aterials 2003 , 17 , pp. 471 - 489.7

Behavior of hybrid FRP-concrete-steel tubular columns : experimental and theoretical studies

Abstract

Similar works

Full text

Available Versions

PolyU Institutional Repository