| 目次へ 【べた基礎_Acタイプ】 |
|
|
|
|
|
|
|
設備耐震_べた基礎_Ac |
|
|
| ●基礎の浮き上がりの検討 |
|
|
|
|
|
|
|
|
|
|
| (1-Kv)[(Lg+(Lf-L)/2*W+Lf*Wf0/2]>Kh[(hf+hg)*W+hf*Wf0/2] |
|
|
|
|
|
|
|
| (1-0.3)[(20+(80-60)/2)*1.9+80*58E-01/2]=20E+01>0.6[(30+95)*1.9+30*58e-01/2]=19E+01 |
|
|
|
|
| 判定 OK |
|
|
|
|
|
|
|
|
|
1 |
|
|
| ここで、 |
L=設備機器の幅=60[cm] |
|
|
|
|
|
|
|
|
60 |
|
Lg=設備機器の重心位置=20[cm] |
|
|
|
|
|
20 |
|
hg=設備機器重心高さ=95[cm] |
|
|
|
|
95 |
|
Lf=基礎長さ=80[cm] |
|
|
|
|
|
80 |
|
hf=基礎高さ=30[cm] |
|
|
|
|
|
30 |
|
Lw=基礎幅=60cm] |
|
|
|
|
|
60 |
|
Kh=設計用水平震度=0.6 |
|
|
|
|
0.6 |
|
Kv=設計用鉛直震度=0.3 |
|
|
|
|
|
|
W=設備機器重量=1.9[kN] |
|
|
|
|
1.9 |
|
Wf0=基礎重量=Wf+Wr |
|
|
|
|
|
|
=Wf+Wr=3.3+2.5=5.8[kN] |
|
|
|
|
|
|
Wf=基礎重量 |
|
|
|
|
|
|
|
=hf*Lf*Lw*γ=30*80*60*23E-06=3.3[kN] |
|
|
|
|
|
Wr=ラフコンクリート重量 |
|
|
|
|
|
|
|
|
|
|
=hr*(Lwr*Lr-Lw*Lf)*γ=15*(120*100-60*80)*23e-06=2.5[kN] |
|
|
|
|
|
|
|
hr=ラフコンクリート高さ=15[cm] |
|
|
|
|
|
|
|
|
15 |
|
Lr=ラフコンクリート長さ=100[cm] |
|
|
|
|
|
|
|
|
100 |
|
Lwr=ラフコンクリート幅=120[cm] |
|
|
|
|
|
|
|
|
120 |
|
γ=コンクリート比重量=23E-06[kN/cm3] |
|
|
|
|
|
|
|
23 |
|
|
|
|
|
|
|
|
|
|
|
|
|
