ࡱ>   !"#$%&Root Entry FV@SummaryInformation( DocumentSummaryInformation8 WordDocument1  !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJOh+'0   ( 4 @LT\ds Normal.dotms>xvt2@w}~@ȩ?@wI =WPS Office_11.1.0.11115_F1E327BC-269C-435d-A152-05C5408002CA՜.+,D՜.+,HPXhpx brd3k (8 MTWinEqnsKSOProductBuildVerICV 2052-11.1.0.11115!C818E55CEC994597898C1198016783AE&0TableData WpsCustomData PKSKS1w ^^ $! P^D! $h2q E  {mQWgN~ThzgޏcvbՋxvz (20xўSO) 1,2 1 3 2NSN[ (1. T]N'Yf[ [_ T 230009 2. TNm'Yf[W(g] z2~pV[͑p[[, Nwm 200092 3. :gh]N,{Nb, [_ T 230601) NSN[ Xd NSўSO :Nxvz0Ww}\O(u N{mQWgNmQW~ThzgޏcvSR'`T4xOW:gt ۏL4i&^|igJSR'`{mQW~TFhgzgޏcpvNOhTS Yw}Ջ0ՋN:Ngp ՋSpe:Ng*bb{|WTzg{|W0~[ՋhQǏ zTՋN4xOW!j_ Rg~TpvnVf~0gf~Syr_fq_T{mQWgNmQW~Thzgޏcp:NJSR'`ޏc0R:_^pdk{|eW~TpwQ go}Yv^'`TR ޏcg [hQS` ns gbBl SN(W~TFhg~g-N^(u0NSwiSO sQ.͋NSўSO JSR'`ޏc {mQW ~TFhg zgޏc b'`NSwiSO Experimental study on seismic performance of endplate connections between CFST external columns and composite beams (Times New RomanVSR|) 1,2 1 3 2 (Times New Roman\Ne Nh:Nck) (1. Hefei University of Technology, Hefei 230009, China 2. State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China; 3. First Mechanical Industry Design Institute, Hefei 230601, China) (Times New Roman\N) Abstract (Times New RomanNR|): To investigate the mechanical properties and failure mechanism of the endplate connections between Concrete-Filled Steel Tubular columns (CFST) and steel-concrete composite beams, an experimental study on four specimens of the endplate joints for semi-rigid CFST composite frame with concrete floorslab was conducted under low-cycle loading. All specimens are external column joints, and the column cross-section type and the endplate type are test parameters. The entire test process of all specimens and the failure mode were investigated, and the hysteresis curves, envelope curves and characteristic value, degradation regulation of strength and stiffness, and energy dissipation were also carefully observed. The test results show that the endplate type, the column cross-section type and the anchorage of blind bolts may affect the moment capacities and initial stiffness of composite joints. The endplate joints between CFST external columns and composite beams appear to be semi-rigid and partial strength joints. The novel composite joint possesses good ductility and energy dissipation capacity, reliable and safe performance in connection, so that it may satisfy the seismic design requirement and be used in composite structures. (Times New RomanN) Keywords(Times New RomanNR|): semi-rigid connection; Concrete-Filled Steel Tube; composite frame; endplate connection; seismic performance (Times New RomanN) ,.0:<>DJNTVZ`bӻqcUI;-CJOJPJQJo(aJH*CJOJPJQJ^Jo(aJCJOJPJQJo(aJCJOJPJQJo(aJH*CJOJPJQJ^Jo(aJCJOJPJQJ^Jo(aJCJOJPJQJo(aJH*CJOJPJQJ^Jo(aJCJ(OJPJQJ^Jo(aJ(5CJ(OJPJQJ^Jo(aJ(5.CJ(OJPJQJ^Jo(aJ(5mH sH nHtHCJ(OJPJQJ^Jo(aJ(5CJ(OJPJQJo(aJ(5CJ(OJPJQJo(aJ(5bflnpxz|ĭj\J<*#CJOJPJQJ^Jo(aJnHtHCJOJPJQJ^Jo(aJ#CJOJPJQJ^Jo(aJnHtHCJOJPJQJ^Jo(aJ+CJOJPJQJ^Jo(aJmH sH nHtHCJOJPJQJ^Jo(aJCJOJPJo(aJH*$B*phCJOJPJQJ^Jo(aJ,B*phCJOJPJQJ^Jo(aJnHtH$B*phCJOJPJQJ^Jo(aJCJOJPJQJo(aJH*CJOJPJQJ^Jo(aJCJOJPJQJo(aJ     , . 6 8 : < @ տ~gTL=&-CJOJPJQJo(aJ5mH sH nHtH\CJOJPJQJo(aJ5\CJQJo(aJ$B*phCJOJPJQJ^Jo(aJ,B*phCJOJPJQJ^Jo(aJnHtH$B*phCJOJPJQJ^Jo(aJCJOJPJQJ^Jo(aJ#CJOJPJQJ^Jo(aJnHtHCJOJPJQJ^Jo(aJ+CJOJPJQJ^Jo(aJmH sH nHtHCJOJPJQJ^Jo(aJCJOJPJQJ^Jo(aJCJOJPJQJ^Jo(aJ @ B D L N P οq^VE6B*phCJOJPJo(aJ!CJOJPJQJ^Jo(aJ5\CJOJQJo($B*phCJOJPJQJ^Jo(aJ,B*phCJOJPJQJ^Jo(aJnHtH$B*phCJOJPJQJ^Jo(aJCJOJQJ^Jo(CJOJPJQJ^Jo(aJCJOJPJQJo(5B*phCJOJPJo(aJ$B*phCJOJPJo(aJnHtHB*phCJOJPJo(aJCJOJPJQJo(aJ5\       " ( ðs`XPJ@2(B*phCJo(5B*phCJo(5nHtHB*phCJo(5 CJaJ5CJo(aJ5CJo(aJ5$B*phCJOJPJQJ^Jo(aJ$B*phCJOJPJQJ^Jo(aJ$B*phCJOJPJQJ^Jo(aJ,B*phCJOJPJQJ^Jo(aJnHtH$B*phCJOJPJQJ^Jo(aJCJOJPJQJ^Jo(aJCJOJPJQJo(5B*phCJOJPJo(aJ$B*phCJOJPJo(aJnHtH( * 0 6 @ B L N X Z | jɿnaZSKC< CJPJaJCJPJo(aJCJPJo(aJ CJPJaJ CJPJaJB*phCJPJo(aJ$B*phCJOJQJo(aJnHtHB*phCJOJQJo(aJB*phCJPJo(aJCJOJPJo(aJH*CJOJPJo(aJCJOJPJo(aJH*CJOJPJo(aJCJOJPJo(aJH*CJOJPJQJ^Jo(aJCJOJPJo(aJH*CJOJPJo(aJ CJo(5jl^`û{xtqmjfc_VRo(aJB*pho(aJo(aJaJo(aJaJo(aJaJo(aJaJo(aJaJo(aJaJo(aJaJo(aJaJo(aJaJo(aJ 5o(aJB*pho(aJ 5o(aJ5aJCJPJo(aJB*phCJPJo(aJ(B*phCJOJPJQJo(aJnHtHB*phCJPJo(aJB*phCJPJo(aJ´CJOJPJQJ^Jo(aJo(o(CJOJPJQJ^Jo(aJCJOJPJaJCJOJPJaJo(aJB*pho(aJo(aJaJo(aJ 5o(aJB*pho(aJ5aJ.>|:   * haa$$!dpYD2a$$A$G$8$7$1$$$$9D4$5$6$3$H$#dpXD2a$$A$G$8$7$1$$$$9D4$5$6$3$H$dVDN^NUD]dVDN^NUD]dXD2VD,v^vUD,v]va$$@&a$$@&a$$@&a$$a$$  VD^WDBv`v 9r 9r &dP VD^WDBv`vdYD2dYD2d dXD2a$$a$$ 0. 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