煙道加強肋計算,,,,,,,,

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零件尺寸,mmxmm,8000x7000x6,,,,,,

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內撐形式,w(寬)=,8000,支撐數,0,計算寬W=,8,8,m

,d(高)=,7000,支撐數,0,計算高D=,7,7,m

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設計壓力KPa,8.79,9.7,,,,,,

基本風壓,0,0.6,,,,,,

雪載荷,0,-0.35,,,,,,

積灰高度mm,300,300,,,,,,

壁板厚度,6,6,,,,,,

保溫厚度mm,200,200,,,,,,

[]t,66,119,,,,,,

Et,160,196,,,,,,

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壓力方向,通道壁板,q0介質設計壓力Kpa,q1壁板重量載荷KN/m,q2保溫重量載荷,q3積灰載荷,風、雪載荷,壁板設計壓力,組合荷載

正（向上）,頂板,8.79,-0.75,-0.39,0,0,7.65,6.69

負（向下）,,-8.79,-0.75,-0.39,0,0,-9.93,-8.97

正（向外）,側板,8.79,0,0,0,0,8.79,10.23

負（向內）,,-8.79,0,0,0,0,-8.79,-10.23

正（向上）,底板,8.79,0.75,0.39,3,0,12.93,11.97

負（向下）,,-8.79,0,0,0,0,-8.79,-7.83

風荷載計算,,,,,,,,

壓力方向,通道壁板,q4雪載荷,q5基本風壓,Us,Uz,風載荷,,

正（向上）,頂板,0,0,0.7,1.2,0,0,

負（向下）,,0,0,0,1.2,0,0,

正（向外）,側板,0,0,0.5,1.1,0,0,

負（向內）,,0,0,-0.8,1.1,0,0,

正（向上）,底板,0,0,0.7,1,0,0,

負（向下）,,0,0,0,1,0,0,

加固肋間距（強度條件）,,,,,,,,

,頂板,側板,底板,,Smax=44.72xδx([σ]t/Σq)1/2+50,,,

壁板厚度,6,6,6,δ(mm),,,,

設計溫度下鋼板的許用應力,66,66,66,[σ]t(Mpa),,,,

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壁板設計壓力,9.93,8.79,12.93,Σq(Kpa),,,,

加固肋間距,742,785,656,Smax(mm),,,,

加固肋間距（剛度條件）,,,,,,,,

,頂板,側板,底板,,Smax=54.8xδx（E/Σq)1/3+50,,,

壁板厚度,6,6,6,δ(mm),,,,

設計溫度下鋼材的彈性模量,160,160,160,E(KN/mm2),,,,

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壁板設計壓力,9.93,8.79,12.93,Σq(Kpa),,,,

加固肋間距,880,915,811,Smax(mm),,,,

加固肋間距（振動條件）,,,,,,,,

,頂板,側板,底板,,Smax=116xδ1/2xE1/4+50,,,

壁板厚度,6,6,6,δ(mm),,,,

設計溫度下鋼材的彈性模量,160,160,160,E(KN/mm2),,,,

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壁板設計壓力,9.93,8.79,12.93,Σq(Kpa),,,,

加固肋間距,1061,1061,1061,Smax(mm),,,,

加固肋間距求小(單位m),,,,,,,,

,頂板,側板,底板,,取較小值（S）,,,

設計類型,二類,二類,二類,,,,,

控制S0,741.7519448,785.2424533,656.2137052,,,,,

控制小數點后3位,742,785,656,,656,,,

加固肋選擇（強度條件）,,,,,,,,

設計溫度下鋼板的許用應力,66,66,66,[σ]t(Mpa),固接Zmin=L*L*Σqdl*S/([σ]t*3464*3464),,,

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加固肋間距,656,656,656,S（mm）,,,,

組合設計荷載,8.97,10.23,11.97,Σq(Kpa),,,,

跨度,8000,7000,8000,Lmax(mm),,,,

最小斷面系數,475,415,634,Zmin(cm3),,,,50?

加固肋選擇（剛度條件）,,,,,,,,

設計溫度下鋼材的彈性模量,160,160,160,E(KN/mm2),固接Imin=L*L**L**Σq*S/(E*1566*1566*1566),,,

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加固肋間距,656,656,656,S（mm）,,,,

壁板設計壓力,9.93,8.79,12.93,Σq(Kpa),,,,

跨度,8000,7000,8000,Lmax(mm),,,,

斷面慣性矩,5428,3219,7068,Imin(cm4)?,,,,50?

加固肋選擇（振動條件）,,,,,,,,

G(kg/m),20.28,20.28,20.28,,,,,

頻率控制長度m,7.80,6.84,8.33,,,,,

加固肋選擇（負壓道體失穩）,,,,,,,,

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結論,,,,,,,,

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,最小截面系數Wmin=,,415,cm3,,540,250X175,

,最大截面慣性矩Imax=,,7068,cm4,,8651,,

,頻率控制長度Lmin=,,6.84,m,查表T3.5,,,

,負壓不