扣件抗滑移驗(yàn)算兩側(cè)立桿最大受力N=max[R1,R3]=max[1.433,1.433]=1.433kN≤0.85×8=6.8kNP1=2.388kN,P2=28.293kN,P3=2.389kN立桿穩(wěn)定性驗(yàn)算中立桿最大受力Nw=max[P1+N邊1,P2,P3+N邊2]+γ0×1.3×每米立桿自重×(H-梁高)+Mw/lb=max[2.388+1.1×[1.3×(0.5+(24+1.1)×0.18)+1.5×0.9×3]×(0.9+0.6-0.6/2)/2×0.9,28.293,2.389+1.1×[1.3×(0.5+(24+1.1)×0.18)+1.5×0.9×3]×(0.9+1.2-0.6-0.6/2)/2×0.9]+1.1×1.3×0.15×(5.35-1)+0.054/1.2=29.271kNf=Nw/(φA)+Mw/W=29270.841/(0.482×424)+0.054×106/4490=155.253N/mm2≤[f]/γR=300/1=300N/mm2在最新的驗(yàn)算中考慮支撐架豎向斜支撐需要參考軸力設(shè)計(jì)值,要是立桿穩(wěn)定性驗(yàn)算中Nw=max? ?為軸向力值那么 P1,P2,P3分別是什么?...閱讀全文
豆豆399 2023-10-31 920 1