ࡱ> cfb{ RMbjbj1dmfmflkttttt8T<''rrrr"&$&$&$&$&$&$&$)+H&tH&ttrr4&%%%trtr"&%"&%%%rk%Wz~#x%&&0''%c,$c,%c,t% %H&H&%R''c,b ::  /_jRmbgN{fN yv Ty_____________gNS_____________ _____________!h [_____________[8h_____________ {e 2022t^6g7efgN 18:03 N0De *bbb__wb_ *bb:\[: b = 250 mm h = 600 mm /_w 0.7ft = 0.71.43 = 1.00 N/mm2 {MK{ 3.{/f&TSN_eujRR 9hncĉ,{6.4.12ag h0 = h - as = 600 - 35 = 565 mm V = 155000.0 N > 0.35ftbh0 = 0.351.43250565 = 70695.6 N {e N_eujRRvq_T 4.{/f&TSN_eumbw 9hncĉ,{6.4.12ag EQ \F(T,Wt)EQ = \F(13950000,16145833)= 0.864 N/mm2 > 0.175ft = 0.1751.43 = 0.2502 N/mm2 {e N_eumbwvq_T 5.{*bbb}RP6RagN ygؚ^hw = h0 = 565 mm fcu,k = 30 N/mm2 NǏ50 N/mm2, Eebc = 1.0 EQ \F(hw,b) = \F(565,250) = 2.26d" 4 9hncĉlQ_6.4.1-1 { EQ \F(V,bh0)EQ + \F(T,0.8Wt)EQ = \F(155000,250565) + \F(13950000,0.816145833)= 2.177 N/mm2 < 0.25bcfc = 0.251.0014.30 = 3.575 N/mm2 *bb:\[nBl 6.mQWSmbb}RMNO|pe 9hncĉlQ_6.4.8-2 bt = EQ \F(1.5,1 + 0.5\F(VWt,Tbh0))EQ = \F(1.5,1 + 0.5\F(15500016145833,13950000250565)) =0.917 7.ygSmb~K{g\MK{s 9hncĉlQ_6.4.5-1 Tw = T = 13950000 Nmm 9hncĉlQ_9.2.5 EQ \F(Tw,Vb)EQ = \F(13950000,155000 250)= 0.36 < 2.0 rtL,min = 0.6EQ \R(\F(Tw,Vb))\F(ft,fy)EQ = 0.6\R(0.36)\F(1.43,300)= 0.1716% AstL,min = rtL,minbh = 0.1716%250600 = 257 mm2 8.jRmb{K{g\MK{s 9hncĉ,{9.2.10ag rsv,min =EQ 0.28\F(ft,fyv) =EQ 0.28\F(1.43,270)= 0.148% EQ \B\bc\((\F(Asv,s))min = rsv,minb = 0.148%250 = 0.371 mm2/mm 9.nx[yg{K{peϑ 9hncĉlQ_6.4.8-1 EQ \F(Asv,s) =EQ \F(V - 0.7(1.5 - bt)ftbh0,fyvh0) EQ = \F(155000 - 0.7(1.5 - 0.917)1.43250565,270565) = 0.476 mm2/mm 9hncĉlQ_6.4.8-3 EQ \F(Ast1,s) =EQ \F(T - 0.35btftWt,1.2\R(z)fyvAcor) = EQ \F(13950000 - 0.350.921.4316145833,1.2\R(1.20)270110000) = 0.167 mm2/mm ygǑ(uV{K{(n = 4) yg{K{@b*bbby:N EQ \F(Asv,s) + \F(4Astl,s) = 0.476 + 40.167= 1.146 mm2/mm S{K{ݍ:N100 mm {K{v_:N8 mm v^vMK{s:N rsv = EQ \F(Asv,bs) = \F(450.27,250100)= 0.804% > rsv,min = 0.148% nBl 10.yg~TK{{ 101 v[LuPSS:Sؚ^ xZ\^       ( 6 8 L N ` b p r  L X Z \ r    * . 0 2 H J L P R T f h r t ǼǼǼǼǼh iCJH*KHPJh iCJH*KHPJh i6CJKHPJh iCJKHPJh i>*CJKHPJh iCJKHPJh i5CJ$KHPJh iF\^      ( b  L r  $If$a$ * L v  2 R Nkd$$IfTl4h0D 4 laf4T $$Ifa$ $Ift v     2 R T V   ( , . 0 6 8 D F H R T Z \ ^ ` b d t z ĸĸh iCJKHPJjh iCJKHPJUh iCJH*KHPJ^Jh i6CJKHPJ^Jh iCJKHPJ^J!h i6CJKHOJPJQJ^Jh iCJH*KHPJh iCJH*KHPJh i6CJKHPJh iCJKHPJ4  ( T4Tn0z~Pz | PRTXZ`jlrxz024Tnrt,.0DFHvxzh iCJH*KHPJh i6CJKHPJjh iCJKHPJUh iCJKHPJh iCJH*KHPJN 246:<~(*,DFVXZ  68>@Bߵh iCJH*KHPJ^J!h i6CJKHOJPJQJ^Jh iCJH*KHPJjh iCJKHPJUh iCJKHPJh iCJH*KHPJh i6CJKHPJ=BNPTVbdfhj  xz| ,NRTV\^!h i6CJKHOJPJQJ^Jh iCJH*KHPJ^Jh iCJH*KHPJ^Jh i6CJKHPJ^Jjh iCJKHPJU^Jh iCJKHPJh iCJKHPJ^J@ ,N&Df2D^z4t,f&Dfjlntv268DPRdfhjnxz|~ @BD^h iCJH*KHPJ^J!h i6CJKHOJPJQJ^Jh iCJH*KHPJ^Jh i6CJKHPJ^Jh iCJKHPJ^Jjh iCJKHPJU^JC^z~ $&(,.06<>JL|~ "$(*,.ֹֹֹh iCJH*KHPJ^Jh i6CJKHPJ^Jjh iCJKHPJU^Jh iCJH*KHPJ^J!h i6CJKHOJPJQJ^Jh iCJKHPJ^JD.024:<  "$02@BDFHJLZ\^`dflnprt~"$,@Bfjlxz~ɼ㫼ɼɼɼɼɼɼ!h i6CJKHOJPJQJ^Jh iCJH*KHPJ^Jh i6CJKHPJ^Jh iCJH*KHPJ^Jh iCJKHPJ^Jjh iCJKHPJU^JC(*.46BDHJN|~:::: ::(:*:2:D:H:x:|::::::::::::;;;;;;;;; ;$;(;*;笹Uh iCJH*KHPJ^J!h i6CJKHOJPJQJ^Jh iCJH*KHPJ^Jjh iCJKHPJU^Jh i6CJKHPJ^Jh iCJKHPJ^JC::::;;;6<v<L=====>>??2??@,@F@h@AdAABb ecu = 0.0033 - (fcu,k - 50)10-5 = 0.0033 - (30 - 50)10-5 = 0.0035 > 0.0033 S ecu = 0.0033 9hncĉlQ_6.2.7-1 xb = EQ \F(b1,1 + \F(fy,Esecu))EQ = \F(0.80,1 + \F(300,2.01050.0033))= 0.55 102 SS:Sؚ^x h0 = h - as = 600 - 35 = 565 mm 9hncĉlQ_6.2.10-1 A's = 0, A'p = 0 M = EQ a1fcb(h0 - \F(x,2)) x = h0 - EQ \R(,h02 - \F(2M,a1fcb))= 565 - EQ \R(,5652 - \F(2175.00106,1.0014.30250))= 94.6 mm d" xbh0 = 0.55565 = 310.8 mm 103 SbK{*bbyAs 9hncĉlQ_6.2.10-2 a1fcbx = fyAs _ As = EQ \F(a1fcbx,fy)EQ = \F(1.0014.3025094.6,300) =1127 mm2 104 {MK{s r = EQ \F(As,bh) = \F(1127,250600)100%= 0.75% {g\MK{s 9hncĉh11.3.6-1 EQ \B\RC\}(\A\AL(rmin = 0.300%,rmin = 0.65\F(ft,fy) = 0.65\F(1.43,300) = 0.31%))rmin = 0.310% r e" rmin ng\MK{sBl 105 {bmbK{ 9hncĉlQ_6.4.8-3 Tw d" bt EQ \B(0.35ft + 0.05\F(Np0,A0))Wt + 1.2EQ \R(z)fyvEQ \F(Ast1Acor,s) 13950000 d" 0.917(0.351.43)16145833 EQ + 1.2\R(1.20)270EQ \F(Ast1110000.00,s) ㉹e z _ EQ \F(Ast1,s)e" 0.167 mm2/mm AstL = z EQ \F(Ast1ucorfyv,sfy)EQ = 1.200.167\F(1500270,300)= 271 mm2 e" AstL,min = 257 mm2 EenBl 106 yg~K{;`(uϑ v萵~TK{byAtop = Astop + AstLEQ \F(bcor,ucor) = 1127 + 271\F(200,1500)= 1163 mm2 vQ-N,{Ny/fb/_@bvSSK{ ,{Ny/fbmb@bvK{RJd0R*bb N萄vby ^萵~TK{byAbot = Asbot + AstLEQ \F(bcor,ucor) = 616 + 271\F(200,1500)= 652 mm2 ygv萵~TK{[EMK{4B20 [EMK{by:N1257 mm2 yg^萵~TK{[EMK{5B14 [EMK{by:N770 mm2 kOb~TK{by:N Amid = AstLEQ \F(hcor,ucor) = 271\F(550,1500)= 99 mm2 < 0.001bhw = 0.001250565 = 141 mm2 9hncĉ,{9.2.13agvBl MnhOblؚ^eTvK{ N\Nyg*bbbyv0.1% S Amid = 141 mm2 [MkOpK{2B10 EQ \B\BC(A = 157 mm2) 11.ˆ{ 111 ~TSbK{MK{srte gHeSbmQW*bbby Ate = 0.5bh = 0.5250600 = 75000 mm2 9hncĉlQ_7.1.2-4 c gHeSbmQW*bbby{~TK{MK{s rte EQ rte = \F(As,Ate)EQ = \F(1257,75000) = 1.676% 112 Sb:S~TK{I{Hev_deq 9hncS/_{@b_vSbK{MK{eHh deq = 28.57 mm 113 I{He^R ssq cI{He^RvQ8lEN~T{ S/_gN~TSbK{v^R as = cs + 0.5deqn = 25.0 + 0.528.570.7 = 35 mm h0 = h - as = 600 - 35 = 565 mm EQ ssq = \F(Mq,0.87h0As)EQ = \F(100106,0.875651257) = 1.75 N/mm2 114 ˆ~TSbK{^S NGWS|pe y gNvcbS͑ Yw}y = 1.00 115 g'Yˆ[^ wmax 9hncĉlQ_7.1.2-1 _gNg'Yˆ[^ wmax = acryEQ \F(ssq,Es)(1.9cs + 0.08\F(deq,rte)) = EQ 1.91.00\F(1.75,2.0105)(1.925.0 + 0.08\F(28.57,1.676%))= 0.003 mm [NbS Tfw}FO NuR{vS/_gN S\g'Yˆ[^XNN0.85 wmax = 0.850.003 = 0.003 mm wmax*gQg'YAQˆ[^ nBl     {fN 0W@WNmWS^]NS233S 276312 Emailhk20002hk@163.com 5u݋0531-89193031 *;,;.;j;l;~;;;;;;;;;;;;;;;;<<<<&<*<,<6<:<<<B<D<J<L<N<P<R<T<V<X<Z<f<h<p<r<t<v<z<|<<<<<<<<<<<<<<<<<<<ɼɼɼɼ㫼ɼɼɼɼ㫼ɼ!h i6CJKHOJPJQJ^Jh iCJH*KHPJ^Jh i6CJKHPJ^Jh iCJH*KHPJ^Jh iCJKHPJ^Jjh iCJKHPJU^JC<<<<<<<==4=6=8=L=T=V=X=Z=\=======================> >>>>>>>>> >">$>&>j>l>n>|>~>>>>>>>>>>Ÿ㫸Ÿ㫸㫸Ÿ㫸㫸h i6CJKHPJ^Jh iCJH*KHPJ^J!h i6CJKHOJPJQJ^Jh iCJH*KHPJ^Jh iCJKHPJ^Jjh iCJKHPJU^JC>>>>>>??2?6?8?Z?\?b?v?x?~?????????????@@@ @@@@,@F@h@l@n@p@v@x@z@|@~@@@@@@@@@@@@@@@@@@@@@@@@@@@Aƹƹƹƹƹh iCJH*KHPJ^J!h i6CJKHOJPJQJ^Jjh iCJKHPJU^Jh i6CJKHPJ^Jh iCJKHPJ^JIAAA A AAAAAdAhAjAAAAAAAAAAAAAAAAAAAAAAAABBBB B"B(B.B0B2B4B@BBBHBJBPBRBVBXB\B^B`BbBdBfBBBBBBBBBټ٫ټ!h i6CJKHOJPJQJ^Jh iCJH*KHPJ^Jjh iCJKHPJU^Jh iCJKHPJ^Jh iCJH*KHPJ^Jh i6CJKHPJ^JCBBBBBC$C&C,C2C4CGJGNGGGGGGGGGGټټټ٬ټٛټٛ!h i6CJKHOJPJQJ^Jh iCJKHOJPJQJ^Jh iCJH*KHPJ^Jjh iCJKHPJU^Jh iCJKHPJ^Jh iCJH*KHPJ^Jh i6CJKHPJ^J=GGGGGGGGHHHH H HDHFHHHJHlHnHrHtHHHHHHHHHHIIII$I&I(I4I6I:IK@KBKDKNKPKRKfKhKlKnKpKtKxKzK|K~KKKKKLL L L"LnLrLtLzLLLLLLLLŸŸŸŸ櫸櫸櫸ŸŸŸjh iUh i6CJKHPJ^Jh iCJH*KHPJ^J!h i6CJKHOJPJQJ^Jjh iCJKHPJU^Jh iCJKHPJ^Jh iCJH*KHPJ^J@JJK~K"LnLLLLLLLLLLLLLL4MMMMM $dN $&dPa$ $|%d  ODr  gdh.LLLLLLLLLLLLLLLLMMMM&M2M4M@MRMbMMMMMMMMýʽʽýh iCJKHPJ^J hh.CJ hh.CJo( h iCJ)hh.hh.B*CJOJPJQJaJph/Thh.CJOJPJQJaJo(jh iUh i / 01h^. 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