螺旋楼梯计算表格

螺旋楼梯计算,,,,,,,,,,,,

工程名称：,,"B-11#,B-18#楼",,,,楼梯编号：,,一层～二层段,,,,说明：本表格属于共享文件，不提供计算结果正确性与适应性的任何保证，所以您对使用本表格引起的任何后果承担全部责任。

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几何参数,层高h(m),水平转角β(度),,楼梯实际宽度b'(m),,楼梯宽度中心线的辐射半径r(m),,,,楼梯计算宽度b(m),,

,3.4,156,,1.2,,2.08,,,,1.2,,

,,,,,,,,,,,,,

,踏步数u,楼梯板厚度t(mm),,ψ(弧度),ω(弧度),a(m),r1(m),r2(m),R(m),β(弧度),γ(弧度),

,18,250,,0.54,0.160,0.189,1.480,2.680,2.14,2.72,1.78,

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混凝土及荷载参数,混凝土强度等级C,,25,ft(N/mm2),1.27,fc(N/mm2),11.9,,,,,

,活荷载(kN/m2),,2,,活载分项系数,,1.4,,,,,

,面层及粉刷载(kN/m2),,1.95,,恒载分项系数,,1.2,,,,,

,,,,,,,,,,,,,

,一个踏步范围内踏步及底板产生的荷载标准值G,,,,3.82,,,,,,,

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,楼梯线荷载设计值p,,,,23.48,,,,,,,

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内力计算,,H,44.35,,M,90.24,,,,,,

θ/β,θ,径向弯矩Mr(kN.m),,法向弯矩Mn(kN.m),,扭矩T(kN.m),径向剪力Vr(kN),,法向剪力Vn(kN),,轴力N(kN),

0.00,0.00,0.00,,-77.37,,-46.45,-9.22,,36.25,,72.37,

0.10,0.27,20.90,,-70.77,,-43.22,-20.55,,26.63,,61.83,

0.15,0.41,29.18,,-65.21,,-39.94,-25.69,,22.40,,55.62,

0.20,0.54,36.12,,-58.36,,-35.78,-30.36,,18.51,,48.82,

0.25,0.68,41.80,,-50.38,,-30.88,-34.47,,14.92,,41.52,

0.30,0.82,46.32,,-41.45,,-25.39,-37.94,,11.61,,33.77,

0.35,0.95,49.75,,-31.76,,-19.44,-40.70,,8.51,,25.65,

0.40,1.09,52.14,,-21.49,,-13.14,-42.72,,5.58,,17.26,

0.45,1.23,53.56,,-10.84,,-6.63,-43.94,,2.76,,8.68,

0.50,1.36,54.03,,0.00,,0.00,-44.35,,0.00,,0.00,

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截面设计,,,,,,,,,,,,

a.跨中截面,(θ/β=0.5),,,,,,,,,,,

Mr=,54.03,Vr=,-44.35,|Vr|<,0.25fctb0=,870.2,,true,,,,

αs=,0.238,,γs=,0.862,,As=,950,(mm2),,,,

,,,,,,,,,,,,,

b.下支座截面,(θ/β=0),,,,,,,,,,,

Mr=,0.00,Mn=,-77.37,T=,-46.45,Vr=,-9.22,Vn=,36.25,N=,72.37,

,截面尺寸验算:,,,,,,,,,,,

,Wt=,3.49E+07,mm3,,,,,,,,,

,SQRT((Vn/bt0)^2+(Vr/tb0+T/0.8Wt)^2)=,,,,,,,,,,,

,,,0.14,<,0.25fc=,2.98,,可不进行抗剪抗扭承载力验算,,,,

,,,,<,0.7ft=,0.89,,抗剪抗扭按构造配筋,,,,

,0.07fcbt0=,,219.9,>,|Vn|=,36.25,,,,,,

,Asv=,305,(mm2),**抗剪扭构造配箍，箍筋间距150mm,,,,,,,,

,Ast=,762,(mm2),**抗剪扭构造纵筋,,,,,,,,

,,,,,,,,,,,第１页,

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c.θ/β=0.1截面,,,,,,,,,,,,

Mr=,20.90,Mn=,-70.77,T=,-43.22,Vr=,-20.55,Vn=,26.63,N=,61.83,

,截面尺寸验算:,,,,,,,,,,,

,Wt=,3.49E+07,mm3,,,,,,,,,

,SQRT((Vn/bt0)^2+(Vr/tb0+T/0.8Wt)^2)=,,,,,,,,,,,

,,,0.12,<,0.25fc=,2.98,,可不进行抗剪抗扭承载力验算,,,,

,,,,<,0.7ft=,0.89,,抗剪抗扭按构造配筋,,,,

,0.07fcbt0=,,219.9,>,|Vn|=,26.63,,,,,,

,Asv=,305,(mm2),**抗剪扭构造配箍，箍筋间距150mm,,,,,,,,

,Ast=,762,(mm2),**抗剪扭构造纵筋,,,,,,,,

,由N、Mr要求的偏心受拉纵筋截面面积:,,,,,,,,,,,

,,eor=Mr/N=,338,(mm),,,,,,,,

,,Asr'=Asr=,470,(mm2),,,,,,,,

,由Mn所要求的纵筋面积:,,,,,,,,,,,

,,αs=,0.0174,,γs=,0.991,,,,,,

,,Asn=,203,(mm2),,,,,,,,

d.θ/β=0.15截面,,,,,,,,,,,,

Mr=,29.18,Mn=,-65.21,T=,-39.94,Vr=,-25.69,Vn=,22.40,N=,55.62,

,截面尺寸验算:,,,,,,,,,,,

,Wt=,3.49E+07,mm3,,,,,,,,,

,SQRT((Vn/bt0)^2+(Vr/tb0+T/0.8Wt)^2)=,,,,,,,,,,,

,,,0.12,<,0.25fc=,2.98,,可不进行抗剪抗扭承载力验算,,,,

,,,,<,0.7ft=,0.89,,抗剪抗扭按构造配筋,,,,

,0.07fcbt0=,,219.9,>,|Vn|=,22.40,,,,,,

,Asv=,305,(mm2),**抗剪扭构造配箍，箍筋间距150mm,,,,,,,,

,Ast=,762,(mm2),**抗剪扭构造纵筋,,,,,,,,

,由N、Mr要求的偏心受拉纵筋截面面积:,,,,,,,,,,,

,,eor=Mr/N=,525,(mm),,,,,,,,

,,Asr'=Asr=,605,(mm2),,,,,,,,

,由Mn所要求的纵筋面积:,,,,,,,,,,,

,,αs=,0.0160,,γs=,0.992,,,,,,

,,Asn=,187,(mm2),,,,,,,,

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e.θ/β=0.2截面,,,,,,,,,,,,

Mr=,36.12,Mn=,-58.36,T=,-35.78,Vr=,-30.36,Vn=,18.51,N=,48.82,

,截面尺寸验算:,,,,,,,,,,,

,Wt=,3.49E+07,mm3,,,,,,,,,

,SQRT((Vn/bt0)^2+(Vr/tb0+T/0.8Wt)^2)=,,,,,,,,,,,

,,,0.13,<,0.25fc=,2.98,,可不进行抗剪抗扭承载力验算,,,,

,,,,<,0.7ft=,0.89,,抗剪抗扭按构造配筋,,,,

,0.07fcbt0=,,219.9,>,|Vn|=,18.51,,,,,,

,Asv=,305,(mm2),**抗剪扭构造配箍，箍筋间距150mm,,,,,,,,

,Ast=,762,(mm2),**抗剪扭构造纵筋,,,,,,,,

,由N、Mr要求的偏心受拉纵筋截面面积:,,,,,,,,,,,

,,eor=Mr/N=,740,(mm),,,,,,,,

,,Asr'=Asr=,715,(mm2),,,,,,,,

,由Mn所要求的纵筋面积:,,,,,,,,,,,

,,αs=,0.0143,,γs=,0.993,,,,,,

,,Asn=,167,(mm2),,,,,,,,

f.θ/β=0.25截面,,,,,,,,,,,,

Mr=,41.80,Mn=,-50.38,T=,-30.88,Vr=,-34.47,Vn=,14.92,N=,41.52,

,截面尺寸验算:,,,,,,,,,,,

,Wt=,3.49E+07,mm3,,,,,,,,,

,SQRT((Vn/bt0)^2+(Vr/tb0+T/0.8Wt)^2)=,,,,,,,,,,,

,,,0.13,<,0.25fc=,2.98,,可不进行抗剪抗扭承载力验算,,,,

,,,,<,0.7ft=,0.89,,抗剪抗扭按构造配筋,,,,

,0.07fcbt0=,,219.9,>,|Vn|=,14.92,,,,,,

,Asv=,305,(mm2),**抗剪扭构造配箍，箍筋间距150mm,,,,,,,,

,Ast=,762,(mm2),**抗剪扭构造纵筋,,,,,,,第2页,

,由N、Mr要求的偏心受拉纵筋截面面积:,,,,,,,,,,,

,,eor=Mr/N=,1007,(mm),,,,,,,,

,,Asr'=Asr=,803,(mm2),,,,,,,,

,由Mn所要求的纵筋面积:,,,,,,,,,,,

,,αs=,0.0124,,γs=,0.994,,,,,,

,,Asn=,144,(mm2),,,,,,,,

g.θ/β=0.3截面,,,,,,,,,,,,

Mr=,46.32,Mn=,-41.45,T=,-25.39,Vr=,-37.94,Vn=,11.61,N=,33.77,

,截面尺寸验算:,,,,,,,,,,,

,Wt=,3.49E+07,mm3,,,,,,,,,

,SQRT((Vn/bt0)^2+(Vr/tb0+T/0.8Wt)^2)=,,,,,,,,,,,

,,,0.14,<,0.25fc=,2.98,,可不进行抗剪抗扭承载力验算,,,,

,,,,<,0.7ft=,0.89,,抗剪抗扭按构造配筋,,,,

,0.07fcbt0=,,219.9,>,|Vn|=,11.61,,,,,,

,Asv=,305,(mm2),**抗剪扭构造配箍，箍筋间距150mm,,,,,,,,

,Ast=,762,(mm2),**抗剪扭构造纵筋,,,,,,,,

,由N、Mr要求的偏心受拉纵筋截面面积:,,,,,,,,,,,

,,eor=Mr/N=,1372,(mm),,,,,,,,

,,Asr'=Asr=,869,(mm2),,,,,,,,

,由Mn所要求的纵筋面积:,,,,,,,,,,,

,,αs=,0.0102,,γs=,0.995,,,,,,

,,Asn=,119,(mm2),,,,,,,,

h.θ/β=0.35截面,,,,,,,,,,,,

Mr=,49.75,Mn=,-31.76,T=,-19.44,Vr=,-40.70,Vn=,8.51,N=,25.65,

,截面尺寸验算:,,,,,,,,,,,

,Wt=,3.49E+07,mm3,,,,,,,,,

,SQRT((Vn/bt0)^2+(Vr/tb0+T/0.8Wt)^2)=,,,,,,,,,,,

,,,0.14,<,0.25fc=,2.98,,可不进行抗剪抗扭承载力验算,,,,

,,,,<,0.7ft=,0.89,,抗剪抗扭按构造配筋,,,,

,0.07fcbt0=,,219.9,>,|Vn|=,8.51,,,,,,

,Asv=,305,(mm2),**抗剪扭构造配箍，箍筋间距150mm,,,,,,,,

,Ast=,762,(mm2),**抗剪扭构造纵筋,,,,,,,,

,由N、Mr要求的偏心受拉纵筋截面面积:,,,,,,,,,,,

,,eor=Mr/N=,1939,(mm),,,,,,,,

,,Asr'=Asr=,915,(mm2),,,,,,,,

,由Mn所要求的纵筋面积:,,,,,,,,,,,

,,αs=,0.0078,,γs=,0.996,,,,,,

,,Asn=,91,(mm2),,,,,,,,

i.θ/β=0.4截面,,,,,,,,,,,,

Mr=,52.14,Mn=,-21.49,T=,-13.14,Vr=,-42.72,Vn=,5.58,N=,17.26,

,截面尺寸验算:,,,,,,,,,,,

,Wt=,3.49E+07,mm3,,,,,,,,,

,SQRT((Vn/bt0)^2+(Vr/tb0+T/0.8Wt)^2)=,,,,,,,,,,,

,,,0.15,<,0.25fc=,2.98,,可不进行抗剪抗扭承载力验算,,,,

,,,,<,0.7ft=,0.89,,抗剪抗扭按构造配筋,,,,

,0.07fcbt0=,,219.9,>,|Vn|=,5.58,,,,,,

,Asv=,305,(mm2),**抗剪扭构造配箍，箍筋间距150mm,,,,,,,,

,Ast=,762,(mm2),**抗剪扭构造纵筋,,,,,,,,

,由N、Mr要求的偏心受拉纵筋截面面积:,,,,,,,,,,,

,,eor=Mr/N=,3021,(mm),,,,,,,,

,,Asr'=Asr=,944,(mm2),,,,,,,,

,由Mn所要求的纵筋面积:,,,,,,,,,,,

,,αs=,0.0053,,γs=,0.997,,,,,,

,,Asn=,61,(mm2),,,,,,,,

,,,,,,,,,,,第3页,

,,,,,,,,,,,,,

j.θ/β=0.45截面,,,,,,,,,,,,

Mr=,53.56,Mn=,-10.84,T=,-6.63,Vr=,-43.94,Vn=,2.76,N=,8.68,

,截面尺寸验算:,,,,,,,,,,,

,Wt=,3.49E+07,mm3,,,,,,,,,

,SQRT((Vn/bt0)^2+(Vr/tb0+T/0.8Wt)^2)=,,,,,,,,,,,

,,,0.15,<,0.25fc=,2.98,,可不进行抗剪抗扭承载力验算,,,,

,,,,<,0.7ft=,0.89,,抗剪