彩鋼板屋面光伏檁條計(jì)算

金屬屋面光伏檁條計(jì)算,,,,,,,

1.風(fēng)荷載計(jì)算,,,,,,,

基本風(fēng)壓(w0):,0.4,KN/m2,依規(guī)范GB50009-2001，附表D4，n=50,,,,

計(jì)算表高(H):,15,m,,,,,

地面類型：,B,,"依規(guī)范GB50009-2001,7.2.1，A/B/C/D",,,,

風(fēng)振系數(shù)(βZ):,1,,建議取值1.0,,,,

風(fēng)壓高度變化系數(shù)(μz),1.14,,,,,,

體型系數(shù)(μS1)：,-0.6,,"依規(guī)范GB50009-2001,7.3.1",,,,

風(fēng)荷載標(biāo)準(zhǔn)值wk=βzμzμs1w0,-0.27,KN/m2,按規(guī)范GB50009-20013.2.5,,,,

2.雪荷載計(jì)算,,,,,,,

基本雪壓(S0),0.4,KN/m2,依規(guī)范GB50009-2001，附表D4，n=50,,,,

屋面積雪分布系數(shù)(μr),1.25,,"依規(guī)范GB50009-2001,6.2.1",,,,

雪荷載標(biāo)準(zhǔn)值(SK),0.50,KN/m2,"依規(guī)范GB50009-2001,6.1.1",,,,

3.恒荷載計(jì)算,,,,,,,

恒荷載標(biāo)準(zhǔn)值(GK),0.15,KN/m2,依規(guī)范GB50009-2001，附表D4，n=50,,,,

屋面傾角(a),5,°,參見組件安裝剖面圖2,,,,

4.荷載組合,,,,,,,

組合1：S=1.2·COS(a)·GK+1.4wK+1.4·0.7·COS(a)SK,0.28,KN/m2,,,,,

組合2：S=1.2·COS(a)·GK+1.4·COS(a)·SK+1.4·0.6wK,0.65,KN/m2,,,,,

組合3：S=1.0·COS(a)·GK+1.4wK,-0.23,KN/m2,,,,,

荷載最不利基本組合值:,-0.23,KN/m2,,,,,

組合4：S=GK·cos(a)+wK+0.7·SK·cos(a),0.22,KN/m2,,,,,

組合5：S=GK·cos(a)+SK·cos(a)+0.6wK,0.48,KN/m2,,,,,

組合6：S=GK+wK,-0.12,KN/m2,,,,,

荷載最不利標(biāo)準(zhǔn)組合值：,-0.12,KN/m2,,,,,

5.光伏組件尺寸/檁條跨度/梁截面參數(shù),,,,,,,

彈性模量(E),70000,N/mm2,,,,,

光伏組件長度(D1),982,mm,參見組件安裝剖面圖1,,,,

光伏組件寬度(D2),1634,mm,參見組件安裝剖面圖2,,,,

梁跨度(L),1250,mm,參見組件安裝剖面圖1,,,,

截面選型,40×40,,,,,,

檁條截面慣性矩(I),9.488,cm4,依據(jù)工程選材截面,,,,

檁條抗彎截面模量(W),4.576,cm3,依據(jù)工程選材截面,,,,

檁條材料強(qiáng)度設(shè)計(jì)值(fa),85.5,N/mm2,,,,,

6.檁條強(qiáng)度驗(yàn)算結(jié)果,,,,,,,

跨中集中力P=S·L·D2/2,-0.24,KN,參見檁條計(jì)算模型圖,,,,

最大彎矩Mmax=PL/4,-0.07,KN·m,,,,,

最大應(yīng)力σmax=M/W,-16.26,N/mm2,︱σmax︱<=fa，滿足要求；︱σmax︱>fa，不滿足要求,,,,

滿足要求！??！,,,,,,,

7.檁條變形驗(yàn)算結(jié)果,,,,,,,

跨中集中力P=S·D1·D2/2,-0.10,KN,參見檁條計(jì)算模型圖,,,,

檁條最大變形fmax=PL3/48EI,-0.61,mm,,,,,

滿足要求?。?！,,,,,,,

8.支座反力計(jì)算,,,,,,,

垂直組件方向支座反力RV=S·D1·D2/2,-0.24,KN,,,,,

平行組件方向支座反力RH=(1.2*sin(a)*Gk+1.2*sin(a)*Sk)·D1·D2/2,0.06,KN,參見組件安裝剖面圖2,,,,

,,,,,,,,

9.光伏組件滑移計(jì)算,,,,,,,

螺栓抗拉設(shè)計(jì)值(FK),6.22,KN,,,,,

連接件摩察系數(shù)(μ),0.2,,,,,,

抗滑移摩擦力FKH=μ·FK,0.62,KN,參見組件安裝剖面圖2,,,,

滑移主動力FH=RH,0.06,KN,FH<=FKH，滿足要求；FH>FKH，不滿足要求！,,,,

滿足要求!!!,,,,