| 目次へ 【独立基礎_Cbタイプ】 |
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設備耐震_独立基礎_Cb |
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| ●基礎の浮き上がりの検討 |
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| (1-Kv)[(Lg+(Lf-L)/2*W+Lf*Wf/2]>Kh[(hf+hg)*W+hf*Wf/2] |
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| (1-0.5)[(50+(150-100)/2)*1.9+150*85E-01/2]=39E+01>1[(35+90)*1.9+35*8.5/2]=39E+01 |
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1 |
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| ●判定
OK |
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| ここで、 |
L=設備機器のボルトスパン=100[cm] |
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100 |
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Lg=設備機器の重心位置=50[cm] |
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50 |
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hg=設備機器重心高さ=90[cm] |
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90 |
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Lf=基礎長さ=150[cm] |
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150 |
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hf=基礎高さ=35[cm] |
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35 |
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Bf=基礎幅=35cm] |
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35 |
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Kh=設計用水平震度=1 |
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1 |
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Kv=設計用鉛直震度=0.5 |
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W=設備機器重量=1.9[kN] |
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1.9 |
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Wf=基礎重量 |
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=hf*Lf*Bf*γ*z=35*150*35*23E-06*2=8.5[kN] |
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γ=コンクリート比重量=23E-06[kN/cm3] |
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23 |
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z=基礎個数=2 |
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2 |
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| ●断面寸法の制限 |
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| Bf=35≧30[cm] |
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| hf/Bf=1≦1 |
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| ここで、 |
hf=基礎高さ=35[cm] |
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20 |
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Bf=基礎幅=35[cm] |
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