結(jié)構(gòu)防火設(shè)計計算書

結(jié)構(gòu)防火設(shè)計計算書1,設(shè)計依據(jù)《建筑鋼結(jié)構(gòu)防火技術(shù)規(guī)范》GB51249-2017《鋼結(jié)構(gòu)設(shè)計標準》GB50017-20172、設(shè)計參數(shù)結(jié)構(gòu)重要性系數(shù) :1.00火災前室內(nèi)溫度Tg0 :20.00℃火災前構(gòu)件溫度Ts0 :20.00℃鋼材類型 :結(jié)構(gòu)鋼火災升溫曲線類型 :以纖維類物質(zhì)為主時間計算步長 :5.00s3、火災下的溫度工況內(nèi)力表單位：kN、kN.m單元號工況號位置NQ2Q3TM2M34、組合內(nèi)力表4.1荷載組合序號荷載組合名稱1組合1:恒0+活1+溫度12組合2:恒0+活1+風2+溫度13組合3:恒0+活1+風3+溫度14.2組合內(nèi)力單位：kN、kN.m單元號組合號位置NQ2Q3TM2M35、設(shè)計結(jié)果表1）非膨脹型單元號火災持續(xù)時間（h）防火材料厚度（mm）構(gòu)件溫度Ts（℃）臨界溫度Td（臨界溫度法）應(yīng)力比（承載力法）強度2軸穩(wěn)定3軸穩(wěn)定12.5027.00637.00647.85---22.5027.00637.00647.85---32.5027.00637.00647.85---42.5027.00643.00653.63---52.5027.00643.00653.63---62.5027.00643.00653.63---72.5027.00643.00653.63---82.5027.00643.00653.63---92.5027.00643.00653.63---102.5027.00643.00653.63---112.5027.00643.00653.63---122.5027.00643.00653.63---132.5027.00644.00654.27---142.5027.00638.00648.82---152.5027.00638.00648.82---162.5027.00638.00648.82---172.5027.00643.00653.63---182.5027.00643.00653.63---192.5027.00643.00653.63---202.5027.00643.00653.63---212.5027.00643.00653.63---222.5027.00643.00653.63---232.5027.00643.00653.63---242.5027.00643.00653.63---252.5027.00643.00653.63---262.5027.00644.00654.27---272.5027.00635.00647.85---282.5027.00633.00647.85---292.5027.00633.00647.82---302.5027.00643.00653.63---312.5027.00643.00653.63---322.5027.00643.00653.63---332.5027.00643.00653.63---342.5027.00643.00653.63---352.5027.00643.00653.63---362.5027.00643.00653.63---372.5027.00643.00653.63---382.5027.00643.00653.63---392.5027.00644.00654.27---402.5027.00632.00643.22---412.5028.00631.00641.95---422.5028.00630.00641.66---432.5027.00643.00653.63---442.5027.00643.00653.63---452.5027.00643.00653.63---462.5027.00643.00653.63---472.5027.00643.00653.63---482.5027.00643.00653.63---492.5027.00643.00653.63---502.5027.00643.00653.63---512.5027.00643.00653.63---522.5027.00644.00654.27---532.5027.00632.00643.27---542.5028.00631.00642.03---552.5028.00630.00641.77---562.5027.00643.00653.63---572.5027.00643.00653.63---582.5027.00643.00653.63---592.5027.00643.00653.63---602.5027.00643.00653.63---612.5027.00643.00653.63---622.5027.00643.00653.63---632.5027.00643.00653.63---642.5027.00643.00653.63---652.5027.00644.00654.27---662.5027.00635.00647.85---672.5027.00634.00647.85---682.5027.00634.00647.85---692.5027.00643.00653.63---702.5027.00643.00653.63---712.5027.00643.00653.63---722.5027.00643.00653.63---732.5027.00643.00653.63---742.5027.00643.00653.63---752.5027.00643.00653.63---762.5027.00643.00653.63---772.5027.00643.00653.63---782.5027.00644.00654.27---792.5027.00637.00647.12---802.5027.00637.00647.12---812.5027.00637.00647.12---822.5027.00643.00653.63---832.5027.00643.00653.63---842.5027.00643.00653.63---852.5027.00643.00653.63---862.5027.00643.00653.63---872.5027.00643.00653.63---882.5027.00643.00653.63---892.5027.00643.00653.63---902.5027.00643.00653.63---912.5027.00644.00654.27---922.5027.00637.00647.82---932.5027.00637.00647.82---942.5027.00637.00642.91---952.5027.00637.00657.00---962.5027.00637.00647.82---972.5027.00637.00647.82---982.5027.00637.00647.82---992.5028.00617.00622.77---1002.5027.00637.00652.65---1012.5027.00637.00647.82---1022.5027.00637.00647.82---1032.5027.00637.00647.82---1042.5028.00617.00622.72---1052.5027.00637.00648.49---1062.5027.00637.00647.82---1072.5027.00637.00647.82---1082.5027.00637.00647.82---1092.5028.00617.00623.10---1102.5027.00637.00648.78---1112.5027.00637.00647.82---1122.5027.00637.00647.82---1132.5027.00637.00647.82---1142.5028.00617.00622.96---1152.5027.00637.00652.09---1162.5027.00637.00647.82---1172.5027.00637.00647.82---1182.5027.00637.00647.82---1192.5028.00617.00629.18---1202.5027.00637.00657.00---1212.5027.00637.00647.82---1222.5027.00637.00647.82---1232.5027.00637.00647.82---1242.5027.00637.00645.00---1252.5027.00637.00657.00---1262.5027.00637.00647.82---1272.5027.00637.00647.82---1642.5027.00634.00645.18---1652.5027.00638.00648.76---1662.5027.00637.00647.82---1672.5027.00634.00645.21---1682.5027.00637.00647.82---1692.5027.00637.00647.09---1702.5027.00643.00653.63---1712.5027.00643.00653.63---1722.5027.00643.00653.63---1732.5027.00643.00653.63---1742.5027.00643.00653.63---1752.5027.00643.00653.63---