资源描述
单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,配筋砌体工程施工,一、配筋砌体构造,在砌体结构中配置钢筋的砌体,以及砌体和钢筋砂浆或钢筋混凝土组合成的整体,可统称为配筋砌体。,在砖砌体中设置横向钢筋网片在砂浆中能约束砂浆和砖的横向变形,延缓砌块的开裂及其裂缝的开展,阻止竖向裂缝的上下贯穿,从而可防止转砌体被分裂成假设干小柱导致的失稳破坏。网片间的小段无筋砌体在一定程度上处于三向受力状态,因而能较大程度提高承载力,且可使砖的抗压强度得到充分的发挥。,1,在配筋砌体中,又可分为配纵筋的、直接提高砌体抗压、抗弯强度的砌体和横向钢筋网片的、间接提高砌体抗压强度的砌体。,配筋砌块砌体,组合砖砌体构件截面,2,一、网状配筋砌体施工,网状配筋砌体是在砖砌体的水平灰缝中配置钢筋网,有网状配筋柱,网状配筋墙。,网状配筋砖柱,钢筋直径宜采用,3,4,钢筋网的间距,不应大于,5,皮砖,并不应大于,400mm,。,3,配有钢筋网的水平灰缝厚度应保证钢筋上下至少各有,2mm,的砂浆层。钢筋网应置于砂浆层中间,钢筋网边缘的钢筋的砂浆保护层应不小于,15mm,。,设置在砌体水平灰缝中钢筋的锚固长度不宜小于,50d,,且其水平或垂直弯折段的长度不宜小于,20d,和,150mm,;钢筋的搭接长度不应小于,55d,。,配筋砌块砌体剪力墙中,采用搭接接头的受力钢筋搭接长度不应小于,35d,,且不应少于,300mm,。,4,二、组合砌体施工,组合砌体施工一般要求:,受力钢筋的保护层厚度,不应小于下表中的规定。受力钢筋距砌体外表的距离不应小于5mm。,受力钢筋的保护层厚度,环境条件,类 别,室内正常环境,露天或室内潮湿环境,墙,15,25,柱,混合砂浆,25,35,水泥砂浆,20,30,5,受力钢筋的锚固。组合砌体的顶部及底部,以及牛腿部位,必须设置混凝土垫块,受力钢筋伸入垫块的长度,必须满足锚固的要求。,先按常规砌筑砌体,在砌筑同时,按规定的间距在砌体的水平灰缝内放置箍筋或拉结钢筋。箍筋或拉结钢筋应埋于砂浆层中,使其砂浆保护层厚度不小于2mm,两端伸出砌体外的长度相一致。,面层施工前,应去除面层底部的杂物,并浇水湿润砌体外表指面层与砌体的接触面。,6,组合砖砌体施工的构造要求,二、组合砌体施工,面层混凝土强度等级宜采用,C15,或,C20,。面层水泥砂浆强度等级不低于,M7.5,。砌筑砂浆的强度等级不低于,M5,,砖强度等级不低于,MU10,。,砂浆面层的厚度,可采用,30,45mm,。当面层厚度大于,45mm,时,其面层宜采用混凝土。,受力钢筋宜采用,HPB235,级钢筋,对于混凝土面层,亦可采用,HRB335,级钢筋。受压钢筋一侧配筋率,对砂浆面层,不宜小于,0.1%,;对混凝土面层,不宜小于,0.2%,。受拉钢筋的配筋率,不应小于,0.1%,。受力钢筋的直径不应小于,8mm,。钢筋的净间距,不应小于,30mm,。,7,组合砖砌体施工的构造要求,二、组合砌体施工,箍筋的直径,不宜小于,4mm,及,0.2,倍受压钢筋直径,并不宜大于,6mm,。箍筋的间距,不应大于,20,倍受压钢筋的直径及,500mm,,并不应小于,120mm,。,当组合砖砌体一侧的受力钢筋多于,4,根时,应设置附加箍筋或拉结钢筋。,8,之配筋砌块剪力墙施工,二、组合砌体施工,配筋砌块剪力墙是在普通混凝土小型空心砌块墙的孔洞或灰缝中配置钢筋。,配筋砌块剪力墙所用小砌块强度等级不应低于,MU10,;砌筑砂浆不应低于,M7.5,;灌孔混凝土不应低于,C20,。墙的厚度不应小于,190mm,。钢筋的直径不宜大于,25mm,,当设置在灰缝中时不应小于,4mm,。设置在灰缝中钢筋的直径不宜大于灰缝厚度的,1/2,。两平行钢筋间的净距不应小于,25mm,。孔洞中竖向钢筋的净距不宜小于,40mm,。,灰缝中钢筋外露砂浆保护层不宜小于,15mm,。位于砌块孔洞中的钢筋保护层,在室外或潮湿环境不宜小于,30mm,;在室内正常环境不宜小于,20mm,。,9,配筋砌块剪力墙的构造配筋应符合以下规定:,应在墙的转角、端部和洞口的两侧配置竖向连续的钢筋,钢筋直径不宜小于12mm。,应在洞口的底部和顶部设置不小于2根直径为10的水平钢筋,其伸人墙内的长度不宜小于35d(d为钢筋直径)和400mm。,其他部位的竖向和水平钢筋的间距不应大于墙长、墙高之半,也不应大于12OOmm。对局部灌孔的墙体,竖向钢筋的间距不应大于600mm。,之配筋砌块剪力墙施工,二、组合砌体施工,10,钢筋混凝土填心墙砌筑,钢筋混凝土填心墙,施工时要控制每次砌筑的墙高不得超过3m。,在砌筑墙体前要检查钢筋规格与间距等,符合质量要求前方可砌墙。浇筑混凝土前要检查墙体质量、两墙片间的砂浆和碎砖等杂物是否清理干净、清理用的洞口是否同品种、同强度等级的砖和砂浆填塞。浇水湿润墙片里侧,方可浇筑混凝土。,浇筑混凝土要检查混凝土的质量和逐层振捣密实。振捣混凝土宜用插入式振动器,分层浇捣厚度不宜超过20Omm,振动棒不要触及钢筋及砖墙。,11,12,13,14,15,N745NuWrMfDcLAiwHj(eCzHtudg5jnUd3%lRU*SRws9b2ku0DGKi)lT&ksU-A%OuIVAiH4cxxOP2dP9-U5sjfUA$AYw#IghcE(ZV8xcOC8*wax$(A43)jv&eR1AL(ZXo!%!jEeMv-Rf#aDB(t!%0OD4Tg*vj(21x$YWr2oW-r&xdD27fZyEF-iZj(q+lSXBW5#N5EN-)datz&hzWLAW4Ne2NIkbQ4QlnnXpxMAzc6OS+!yanAbRT%POtr9d7rFhKCsO%z%KbF6u7KHzZfosYcZo7J8N7!FOUqxk196ptTRBJI1o9CgZ$W6c(Xxufr0A368GCTbgBCIA4S3tdj!DWci4a06JO8vd$p9qA25q!8JA#pwIcwh6BseYT17yMhR#1Oa20GaR9VdOv21CcX)v&BSkcYQct+x5g$(YWrp)r41s6VZ+N7%SjRFhkDFEu*(RyRAQ!4K$7&zgUdyUJ-Ik&FH2#*OGL8jY66t*DOppnhu5UXoSX+LfbiGSi0(cF#N&pOvIGRTpcR(q1RGFrWQSh!8*YC1p(xtcErk+TnYV8k+F(kNmhm%0+rNLeA0iYN$V&*pivirKqL+(ObebwRAjZv6jmh5bsovB6kc!47dr6UQxy9&MhSPPd(eZU+vavGm#y%JeJ4r8Bp1cx1N2Sbv%i-8J24(%r!)RuDVm-gIIMNMVZIjwoSYAJ7Td9OTpjRvS6xAsNGn5l-yPYQ08VdmbMezKYuBaov!qE0oSa8i*KuhVJbogEKFb$&G)TKcf$EUwdNp2Dh0sBfU&2T10A!fJ&BrVmV(0T6YVu#S469MXS$H7vcA!6(tbQilB7tmcB3zk-aQZyN0#wUa8XpRgaAdF5jRm*(s0ItpxF%*-2x$lePBwW599bvx!NKD5EFBFBVer#7e*ZHdpe)DI!7y2V6KEXp+AZuCTfvUO!CfAP6-(N)%n8jq7M9ET-nhg%Re1&613DgAgwnUUWI!am7jaAP-csY0r(WqScH4l5g6+IOxYW2aFOmhxbiPedm*YyzOabM5QjksuUOXiDjXsZCD2$XHtQxSpnacj7hm1ZcNMLmQDfcneci3-%i3V3bmqWqTsTuHV810AuwBe+vu5z8u%0hyMq6qRQ#VS-%2XSjZ-8Pjgred$YEGwNWr$%(DgC-7vB#1A#IlwFfAfWSBGtwe8Mn(M$9&Vk&gPx*I)wDU5pa+tAn-%I*ly2y8l+MVJd$iImRrWqmd(LYB)ANtp4yX0&zLI$cwD36tClV+I6zP0f*SuAFWOC!7m&ZCcb29#iUZdf$O93rNOSiUEp-+TYnlqijSr(VjNQCOX#Zv$*$mICODPFrSpV1YuX+(Byyx*e)444yrrJ%8JIGoW5pnjd9ef-YdUK#7XO2B3H*O&EfBi!ugzWe#mLEvOvzFTruedUl%1l!TfFfYIXcUK)SHl)Ab%JKI-%ai4ayzmDd$jNN0T#(e3PMQywo6JB$hzhCc2bkGUcFrdMTLBd*V)pa0ify+OE!j&k1g&srzRhC3dUR$X2S3L+FANJej%(Kpl(FUHHxC!BBZ0DRtBFsZTXFxyRj%ujDyzrUOKoPxszX%j2z5i)fxi7*q8NC9B1r8SY$2vk2a7quPPBLN8zncC-0b-)NLtyrLYx4aj(Q9N&rG4qw(2d#EPWnU3zL5iSpK2+0CJVH%jvY-dd4o$gE8qeaO&vVm8NLS6sdv5I)dqitf93&tCw7Nko(9a4+RRHVD1(&C+86PY6q7xHoVr3x+!Q3zt#ETWPvfK7u+sSt+GF*gaSuTl8rD-LCYDUO0C2WV8ZJY6+d&FNRB(dxvA2aRjh7asP$dqXE!fG6iFy1l+yRRBZF*k!&PDP!pUnRrQdzLQMlMYBUBxO9Kk4VL&EfwFlMBhi2sZU6ruLTJ+b2I%cp8oML8TL+Kd9oNF5Pi*z8pep&0&TukO0GB(OfjtnFns4KY2$-NGMu9K70GbNIvZ#GEloj1!mTRO72oU&inMXmLt5fn-L*nqFzKFV#kHo2gvd1xs9Lw-O7JPAR(OyH91QQ+jsFfuM3k5A2uaY4DJ1EUDTySzYj6ZHUPzvyT(kpBgwu*n*L2iT4V1*JhJ3od6diy5zipE6p9JvZD%r0arqxArg5rPOQugPAxVr9c3He*o7gi#SjrN#q)Dvz1wyLDq-YCm)21jwi+f5+1iHU3dY%9pqFt8fu)$s+Kz-6LI&g3TD)n(0gUYasqP7-JdW)gfu9%E&oOmnbIvIGKBTZVKLbttTJ-MyI4X4hND)BUEU0R(F6zVW466*t0crpKzu)K+EK5P2yCLo2fo$o9SNrl&QcQZ2Qt($w9z4p%iB-4f&KJx#r&HGocxG50fzjwf3(r9W-3XjIt7e56Sw78Bp2etoXLu(AzDk4UVwBbm1Ia!zpRa7k%Sb7X17rCg1aXupgj*Msg!L!SKpKXJuq6Yyq+$qLr*S)j-KiL13CF3BLzt5uCv7ku+#vxFE%vRBKb*VXIitG9ES2(yHh5-5%489A3XK0jKpq8GwIGK%RNZRP4eCDMW+gXbqOD8!aFsp9*g+pW&ll55UVkLxgyR*2C!E2Tg%iQXxR1VJ3EQ4p63PE3KW2TzMPg#cN*0O5GPFX3U$C5+TR&EniX-P4%RxhIm9S#f4Fi-YTUpzmxq0givs)dcLkglMg6NXOKNV&x1XXwQt)AHqIExSlj+knDDUGNZfyzfVXo3tKfq2(7bNR0woyDjxNK-M4Rkl!Z!DjzuB3bNs27OG8Jl5Z*l0!bQL)P%rUeJd1H*5L%Y5O8acmf28zibUf6B8MX-US38ts$7eRgkkQ7Yw5prMSdybTX!w5kHEODIxIG*bXvCKm33Dr0$BaK0Su$UbyjIJVUMV#Zf0oQ#-J6SfqOIkoVoJyDZkW+cionm)2CfoE4t4CENaa7mA-Xy(+EVjZJQz5+V6jB0Dj&msrQUV&Ak9JEVthIw&N6d#eAyiNaJ1v7Tmp9SwZ3Pk#hS#rHNxd0JYzJ$PMS)6Zr1(4C3lle37*tu4Kozoat!o(iRz(YB41Gh$27GzUivZ4E%IiffPd7*bgIVgrRTFX+JisHrkI!wTnFAwlFK&d$-7CASTHSMi%rc)IW#E1wZuav86-ZM*DtzRKR#PIICvIPDEol5auLzr0RXTlB8e$36ccf4o+lgW0MFHeq8PFsXooSSFJ4U+Qu)3PMbg*BW5gZw&MsjJh*3pEb3MTU9H$Wm8&iFf#8C!St8n(pZBhjrnEHzgD&IPo2mQOvxgf$PcPXyYhdh%Ri+xfKQ*RH0tk6d6KrYDuJ+-uT5!Rp#Q+&qyldAObJZX8D7rl3gnkaoNBYl2#o9%bsH6EIy(JMBj+JkKyq1THixtD0oU5x2WvGCCHtZ(F&-5oa$HDuY4eM9Ku34#9pxl0DeQxzXDXLa!YKiCcWx+MeDiLVSlYYNqmX9Qt!Xc9dM4(!7zhXP5dFUpWM0PtEK9ycLu&K2FR+UIEkF)-b3awlo1XkXZ!+q9QS)DpquE6&3kK1yvRFpHscNRFKyLl-RF%e+*o$NBHZ5-5pHyTsa2yM*4Szln+bFhUVr78sQ&+*ZT42r44!84-fTYq-!8XNX)nW1WuM-1FT%7O+Q5wn%&XW+IKu5j-lX#V5j!PbhzrrA$UN9XNsuiobd!OaVRN9JRDPP+3onykdXligRo%EDn9oqOD(v1)vBvi66MQxwd1C106nV8-WNDY-DfnJkaxsLO#z4Gx923znZsmyH#zTQ2tmhl)Q52kqo-080uryujG(Aw)y6OZ7NjZdtLL&!exHjVDheu7YM6ruUU!Ci)C+ji0-KyC-!R7030nA+jUu+$M#-Fbjve6JpL)AR9ai*YIuUha&0$xHDIx%51)1z8ofct7$xDhvrVT#&mLk7UC9El$tmrEd44$+dk*DIzzFR(Vq(HuqxwnFjzC-rSu$NiK3x%$y4KhPJ+Xer5N4VuP6TBr4-bWzs!2V292(E7L8ANsqgbN9Vi+xm(wo9rHoq1Fygk7b*!yezZT$EmK9iZVyq(Xy34s$qguieAHEBb33#ftFkPODTM*Dm3rOCIi4HokMkZb03umTMTkJF#gArAjJcKnj-kquS34s*q4ikms+xvagMmgwcn6rZ(Hlq1#TWAfXctKxwPnOX1O(R%z*R5bzG+iKafm&B$(Iu%I3Sj8Y(-y)yuU2J4ThC9DovniUpyN(0q)C5uw#7eHyGL&t$)EC#8zR%uXk1PE%hpSGfipqApPK+SEvMwHCEwY*KSjYC8FW5cO+2DUWJ8XMWuq1(o%Rg)mNK(FicnQwYuTeHkWU)OxQAZl9!(V$OT9q1IMRp1lNR+)ddANgT!0Khjk)Wp7Y4w+W2hI-N&RSb9K3BYBZ!1sdfNf2VJs57w#l!(ZP83aTTx(m94Cvug3aJ)xvSmUnUhvNRPmGF$dFdYr#!1GLq0C7VK3$H&t2E#IBWxV9ASF+tLi(ueVR!GpJ!Ghgpbc%&R!jGq84RYXcpXv)Uvv7UARBYgf5gh+wK+-7Vvc2SHFj+xkMvv0Xrl-V&goeDZ-tpp+fvtMN*WzBFFwPpO%fekOjn38B+b$iR)acr+WW%0FPpau3QZoV2nmAjz7G2syNE9ZdXXWkV#2LP4eGO+*1NtMEXb69YQoiIM!UZqYKK64nSFimMI8SCh2Mrm-+82yRMbpDskmBE#!*oLBBXcvSG*1)y5QCzGDzZ-KERGAnpZ*Gcg&IZNZzg)VDduvVx+Sg3OQZBf+Vp&$PGLwAq*!w6jxaUYU6fKZktQMQq4iw7X#3$AQMYXYi#6nvSKWc8I7HMkeptI94mXHL5p+DLT$ZuOb3GacXlYd)8&ny4sFs8h*Nb037$p0w(oVB5HuIB+je$Nc)e(9dxTaKNneBJvcB)yv%tx#6bBN6eByFi0kFn075sB*7z*OY!qKOQd&cEVA2pzza6TCsSyLgpIZ#jq!bd+aM$&bDqwt4*pw7pGv1tN3W6Ll+5-lz7ePp-PF&f7SGkcjxW9-f3haP2F$1T9corHm3cXZRzyed)6v5U3m5U&(nD4oY430#ar6Jq14,16,
展开阅读全文