>> P.258
7-41(2)角ダクトの板厚、補強目安40℃の場合は実厚の1.15倍、60℃の場合は実厚の1.4倍とする。20℃における塩ビ製角ダクトの板厚および補強の目安表を下表に示した。角ダクトの補強間隔と板厚目安表(その1)(mm)形状圧力Pa短辺の長さmm実厚板厚実厚板厚実厚板厚実厚板厚実厚板厚実厚板厚実厚板厚実厚板厚実厚板厚実厚板厚実厚板厚実厚板厚5001.922.232.432.532.732.933.033.343.643.944.154.35b/a6002.332.632.833.143.343.543.744.044.354.654.955.26∥7002.733.033.343.643.844.044.354.755.055.465.766.061.08003.143.443.844.154.454.654.955.365.866.286.586.989003.543.944.254.654.955.265.566.066.586.987.487.8810003.944.354.755.165.465.866.186.787.287.788.2108.6105002.332.632.933.143.343.543.744.154.454.755.055.26b/a6002.833.143.443.744.044.254.454.955.365.666.066.38∥7003.343.744.044.354.654.955.265.766.186.586.987.381.58003.744.254.655.055.365.665.966.587.087.587.988.4109004.254.755.265.666.066.386.787.387.988.4108.9109.41010004.755.265.766.286.687.087.488.1108.8109.4109.91010.5125002.432.733.033.243.543.743.944.254.654.955.265.56b/a6002.933.343.643.944.254.454.655.165.565.966.286.68∥7003.443.844.254.554.855.165.465.966.486.987.387.782.08003.944.454.855.265.565.966.286.887.387.888.3108.8109004.454.955.465.866.286.687.087.688.2108.8109.3109.81010004.955.566.066.586.987.387.788.5109.2109.81010.41210.9125002.532.733.033.243.543.743.944.354.654.955.265.56b/a6002.933.343.643.944.254.454.755.165.565.966.286.68∥7003.443.844.254.554.955.265.466.066.486.987.387.78∞8003.944.454.855.265.665.966.286.887.387.988.3108.8109004.454.955.465.866.286.687.087.788.3108.8109.4109.91010004.955.566.066.586.987.487.888.5109.2109.81010.41211.012800600400160020001800140050070090012001000角ダクトの補強間隔と板厚目安表(その2)圧力Pa(mm)実厚板厚1.62400×20002.3400×200032.9400×100033.34400×10004.0400×10004実厚板厚2.2500×100033.1500×100043.8500×50044.4500×50055.4500×5006実厚板厚2.73600×10003.9600×50043.7600×50044.35600×5005.3600×5006実厚板厚3.24800×8003.4800×50044.2800×50054.85800×5005.9800×4006実厚板厚3.441000×6003.81000×50044.61000×50055.361000×5005.41000×4006実厚板厚3.21200×60043.91200×50044.71200×50055.51200×50065.41200×4006実厚板厚3.341500×6003.91500×50044.81500×50055.561500×5005.41500×4006実厚板厚3.343.944.855.565.46長辺長さmm5001000150020003000300400300×2000300×2000300×2000500600800100012001500補強間隔補強補強間隔補強補強間隔補強補強間隔補強間隔補強間隔補強間隔補強間隔補強補強補強補強補強300×2000300×2000L40×40×5L40×40×5L40×40×5L40×40×5L40×40×5L50×50×6L50×50×6L50×50×6L50×50×6L50×50×6L50×50×6L50×50×6L50×50×6L50×50×6L50×50×6L50×50×6L50×50×6L50×50×6L50×50×6L50×50×6L60×60×7L60×60×7L60×60×7L60×60×7L60×60×7L60×60×7L60×60×7L60×60×7L60×60×7L60×60×7L60×60×7L60×60×7L60×60×7L60×60×7L60×60×7L75×75×9L75×75×9L75×75×9L75×75×9L75×75×9
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