| 目次へ 【梁形基礎_Bcタイプ】 |
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設備耐震_梁形基礎_Bc |
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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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| (1-0.3)[(30+(120-60)/2)*1.9+120*28E-01/2]=20E+01>0.6[(50+80)*1.9+50*28e-01/2]=19E+01 |
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| ●判定
OK |
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2 |
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| ここで、 |
L=設備機器の幅=60[cm] |
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60 |
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Lg=設備機器の重心位置=30[cm] |
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30 |
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hg=設備機器重心高さ=80[cm] |
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80 |
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Lf=基礎長さ=120[cm] |
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120 |
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hf=基礎高さ=50[cm] |
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50 |
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Bf=基礎幅=30cm] |
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30 |
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Kh=設計用水平震度=0.6 |
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0.6 |
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Kv=設計用鉛直震度=0.3 |
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W=設備機器重量=1.9[kN] |
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1.9 |
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Wf0=基礎重量=Wf+Wr |
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=Wf+Wr=1.8+1=2.8[kN] |
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Wf=基礎重量 |
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=hf*Lf*Bf*γ=50*120*30*10E-06=1.8[kN] |
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Wr=ラフコンクリート重量 |
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=hr*(Bfr*Lr-Bf*Lf)*γ=30*(50*140-30*120)*10e-06=1[kN] |
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hr=ラフコンクリート高さ=30[cm] |
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30 |
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Lr=ラフコンクリート長さ=140[cm] |
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120 |
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Br=ラフコンクリート幅=50[cm] |
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50 |
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La=ダボ筋埋込み長さ=10[cm] |
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10 |
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γ=コンクリート比重量=10E-06[kN/cm3] |
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23 |
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