>> P.207
この細長比に応ずる座屈係数ωは補強材の厚さが4㎜未満の場合は表6-5から、4㎜以上のときは表6-6よりωを求める。ωが求まれば、式よりその断面を検定する。lki:座屈長さ(㎝):断面二次半径(㎝)ilλ=kまず補強材を仮定して細長比σcωNA:最大圧縮応力(MPa)〔kgf/㎝2〕:座屈係数:軸圧縮力(N)〔kgf〕:補強材の断面積(㎜2)〔㎝2〕lk6-13-2.鉄補強材の座屈鉄補強材の座屈計算は次式より求める。N=σcωNA≦157〔1600〕(MPa〔)kgf/㎝2〕第6章第6章表6-5座屈係数ω(厚さ4㎜未満)の表λ0123456789λ0～20304050607080901001101201301401501601701801902002102202302402501.001.031.051.091.131.181.251.341.461.772.102.472.863.283.734.224.735.275.836.437.067.728.409.121.001.031.051.091.131.201.261.351.491.802.142.502.903.333.784.264.785.325.896.497.127.788.471.001.031.051.091.141.201.271.361.521.832.172.542.943.373.834.314.835.385.956.557.197.858.541.001.031.061.101.141.201.281.371.551.862.212.582.983.413.884.374.885.436.016.627.257.928.611.001.051.081.111.161.231.311.421.672.002.352.743.153.604.074.575.105.666.256.877.528.198.901.001.041.071.111.161.221.301.411.641.962.322.703.113.554.024.525.055.606.196.807.458.128.831.001.041.071.111.151.221.291.401.611.932.282.663.073.503.974.474.995.556.136.747.388.058.751.001.041.071.101.151.211.291.381.581.902.242.623.023.463.924.424.945.496.076.687.327.998.686-401.001.051.081.121.171.241.321.431.702.032.392.783.193.644.124.625.155.726.316.937.588.268.971.001.051.081.121.181.241.331.451.732.072.432.823.243.694.174.675.215.786.376.997.658.339.040～2030405060708090100110120130140150160170180190200210220230240250
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