ansys雨蓬鋼結(jié)構(gòu)計(jì)算書

PAGEPAGE17雨蓬結(jié)構(gòu)計(jì)算(一)、荷載計(jì)算1、標(biāo)高為5m處荷載計(jì)算(1).風(fēng)荷載計(jì)算:W0:作用在雨蓬上的基本風(fēng)壓值：0.55kN/m^2Wk:作用在雨蓬上的風(fēng)荷載標(biāo)準(zhǔn)值(kN/m^2)W:作用在雨蓬上的風(fēng)荷載設(shè)計(jì)值(kN/m^2)βgz:6m高處陣風(fēng)系數(shù)(按B類區(qū)計(jì)算),由GB50009-2001表7.5.1得1.88μz:6m高處風(fēng)壓高度變化系數(shù)(按B類區(qū)計(jì)算),由GB50009-2001表7.2.1得1.00μs:風(fēng)荷載體型系數(shù),取為-2γw:風(fēng)荷載作用分項(xiàng)系數(shù):1.4Wk=βgz×μz×μs×W0(GB50009-2001)=1.88×1.00×2.0×0.55=2.07kN/m^2W=γW×Wk=1.4×2.07=2.9kN/m^2(2).玻璃自重:采用8+1.14PVB+8mm夾膠鋼化玻璃GAK:雨蓬玻璃的平均自重標(biāo)準(zhǔn)值(kN/m^2)GA:雨蓬玻璃的平均自重設(shè)計(jì)值(kN/m^2)γG:自重荷載作用分項(xiàng)系數(shù):1.35GAK=25.6×(8+8)/1000=0.41kN/m^2GA=γG×GAK=1.35×0.41=0.55kN/m^2(3).結(jié)構(gòu)自重(含不銹鋼爪件):GBK=0.15kPaGA=γG×GAK=1.35×0.15=0.20kN/m^2(4).雪荷載計(jì)算:Sk:作用在幕墻上的雪荷載標(biāo)準(zhǔn)值,上海取為0.2(kN/m2)S:作用在幕墻上的雪荷載設(shè)計(jì)值(kN/m2)S0:基本雪壓,按《建筑結(jié)構(gòu)荷載規(guī)范》GB50009-2001，取為0.40γS:雪荷載作用分項(xiàng)系數(shù):1.4μr:屋面積雪分布系數(shù),按GB50009-2001，取1.0Sk=μr×S0(GB50009-20016.1.1)=1.0×0.20=0.20kN/m^2S=γS×Sk=1.4×0.20=0.28kN/m^2(5).活荷載計(jì)算:q活k:作用在雨蓬上的活荷載標(biāo)準(zhǔn)值：0.500kN/m^2q活:作用在雨蓬上的活荷載設(shè)計(jì)值(kN/m^2)γ活:活荷載作用分項(xiàng)系數(shù):1.4q活=γ活×q活k:=1.4×0.50=0.70kN/m^2(5).荷載組合:計(jì)算鋼結(jié)構(gòu)時(shí)工況一：重力+1×活荷載標(biāo)準(zhǔn)值qk設(shè)計(jì)值q0.41+0..15+11×0.5500.55+0..2+1××0.700=1.066kN//m^2=1.455kN//m^2工況二：重力+1×雪荷載標(biāo)準(zhǔn)值qk設(shè)計(jì)值q0.15+0..41+1××0.200.2+0.555+1××0.288=0.766kN//m^2=1.033kN//m^2工況三：風(fēng)力-重力標(biāo)準(zhǔn)值qk設(shè)計(jì)值q2.07-0.41-0..152.9-00.41-0..15=1.511kN//m^2=2.344kN//m^2經(jīng)比較，工況一和工況三更為不利，校核這兩種工況下的結(jié)構(gòu)受力情況。(二)、雨蓬鋼梁計(jì)算為保守起見(jiàn)，雨蓬拉桿不考慮承壓，雨蓬梁按懸臂梁模型進(jìn)行計(jì)算。計(jì)算模型如下圖所示：由施工圖可知，鋼梁懸挑長(zhǎng)度L＝3050mm，鋼梁間距a＝1158mm=1.158m鋼梁截面特性(Q235B鋼材)，鋼梁彈性模量E＝206000N/mm2(三)、計(jì)算結(jié)果1.結(jié)構(gòu)變形fmax＝19.959mm依據(jù)規(guī)范，鋼梁允許撓度為[f]＝2L/250＝2x3050/250＝24.4mmfmax/[f]＝19.959/24.4＝0.82<1可見(jiàn)，鋼梁撓度滿足設(shè)計(jì)要求。2.鋼梁強(qiáng)度校核計(jì)算可知，鋼梁最大應(yīng)力σ＝120.894MPa鋼梁設(shè)計(jì)強(qiáng)度[σ]=215MPa因此鋼梁強(qiáng)度滿足設(shè)計(jì)要求。3.鋼管強(qiáng)度校核計(jì)算可知，鋼梁最大應(yīng)力σ＝68.96MPa鋼梁設(shè)計(jì)強(qiáng)度[σ]=215MPa因此鋼梁強(qiáng)度滿足設(shè)計(jì)要求。4.節(jié)點(diǎn)編號(hào)圖5.支座反力列表單位：NPRINTFZREACTIONSOLUTIONSPERNODE*****POST1TOTALREACTIONSOLUTIONLISTING*****LOADSTEP=0SUBSTEP=1TIME=1.0000LOADCASE=0THEFOLLOWINGX,Y,ZSOLUTIONSAREINGLOBALCOORDINATESNODEFZ10-72598.1446458.196401.351-19008.1118--725998.1226--82677.71448169226.155264011.31778464558.1882--190008.1886169226.TOTALVALUUESVALUE-5519099.6.關(guān)鍵點(diǎn)列表LISTAALLSSELECCTEDKEYPPOINTTS.DSYYS=0NOO.X,Y,,ZLOOCATIIONTHHXY,TTHYZ,,THZXXANGGLES14426233.09-341196.88100.00000000.000000.000000..0000024426233.09-353394.99900.00000000.000000.000000..0000034426233.09-328894.99900.00000000.000000.000000..0000043359733.09-324496.00933000..0000.000000.000000..0000054426233.09-324496.00900.00000000.000000.000000..0000064426233.09-324496.00933000..0000.000000.000000..0000074426233.09-318885.00900.00000000.000000.000000..0000094416144.76-324496.00900.00000000.000000.000000..000001104416144.76-318885.00900.00000000.000000.000000..000001114416144.76-328894.99900.00000000.000000.000000..000001134416144.76-341196.88100.00000000.000000.000000..000001154416144.76-353394.99900.00000000.000000.000000..000001174404566.43-353394.99900.00000000.000000.000000..000001194404566.43-341196.88100.00000000.000000.000000..000002214404566.43-328894.99900.00000000.000000.000000..000002234404566.43-324496.00900.00000000.000000.000000..000002253394399.09-324496.00900.00000000.000000.000000..000002273381399.76-353394.99900.00000000.000000.000000..000002283369811.43-353394.99900.00000000.000000.000000..000003303392988.09-353394.99900.00000000.000000.000000..00000NOO.X,YY,ZLLOCATTIONTTHXY,,THYZZ,THZZXANNGLESS3373392988.09-341196.88100.00000000.000000.000000..000003393381399.76-341196.88100.00000000.000000.000000..000004413369811.43-341196.88100.00000000.000000.000000..000004433359733.09-341196.88100.00000000.000000.000000..000005533392988.09-328894.99900.00000000.000000.000000..000005553381399.76-328894.99900.00000000.000000.000000..000005573369811.43-328894.99900.00000000.000000.000000..000005593359733.09-328894.99900.00000000.000000.000000..000006613369811.43-324496.00900.00000000.000000.000000..000006623359733.09-324496.00900.00000000.000000.000000..000006633381399.76-324496.00900.00000000.000000.000000..000006663392988.09-326696.88100.00000000.000000.000000..000007793381399.76-318885.00900.00000000.000000.000000..000008823369811.43-318885.00900.00000000.000000.000000..000008893359733.09-353394.99900.00000000.000000.000000..000009973359733.09-318885.00900.00000000.000000.000000..000009993391577.09-324496.00900.00000000.000000.000000..0000010024404566.43-318885.00900.00000000.000000.000000..000007.單元列表LISTAALLSSELECCTEDELEMMENTSS.((LISTTNODDES)ELEEMMAATTYYPREELESSYSEECNODDES3331240135536003341240136637003351240137738003361240138831005531240155557005541240157758005551240158859005561240159956005571240135561005581240161162005591240162263006601240163360006611240122640066212401644650066312401655660066412401666310066512201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