葫芦垡村旧村改造工程5#楼 冬期施工方案
1.5.3、计算T=0oC时的t 1. 墙（钢模+2层防火被） K=
3.62
?3.45 kJ/(m·h·k)
0.0040.030.04???20.80.06??k?M1.8?3.24?8????1.558 Vce?Cc??c0.013?0.96?2400Vce?Qce?mce0.013?330?300?????1.59 Vce?Cc??c???k?M0.013?0.96?2400?1.8?3.24?8??T3?Tm,a???12?6?1.59?4.41
T??e??Vcet??e?Vcet?Tm,a?4.41?2.72?1.558?0.013?t?1.59?2.72?0.013?t?6?12oC
计算得t=62h
Tm??1??(?e?Vcet?e??Vcet???)?Tm,aVce??14.414.41(?1.59?2.72?0.013?62??2.72?1.558?0.013?54??1.59)?6?37oC0.0131.5581.558D?(Tm?15)?t?(37?15)?60?10?3?3.12
f?ae?178?2.72bD0.1120.0312?4.36MPa
结论：出罐温度，保温材料厚度能够保证按预计时间拆除。 2. 顶板（塑料布+2层防火被） K=
3.62
?3.24 kJ/(m·h·k)
0.0120.030.04???20.170.06??k?M1.8?3.24?10????1.947 Vce?Cc??c0.013?0.96?2400Vce?Qce?mce0.013?330?300?????1.45 Vce?Cc??c???k?M0.013?0.96?2400?1.8?3.24?10??T3?Tm,a???12?6?1.45?4.55
T??e??Vcet??e?Vcet?Tm,a?4.55?2.72?1.947?0.013?t?1.45?2.72?0.013?t?6?12oC
计算得t=65h
Tm??1??(?e?Vcet?e??Vcet???)?Tm,aVce??14.554.55(?1.45?2.72?0.013?65??2.72?1.947?0.013?65??1.45)?6?34.5oC0.0131.9471.947D?(Tm?15)?t?(34.5?15)?60?10?3?4.3
f?ae?178?2.72bD0.1120.043?4.6MPa
结论：出罐温度，保温材料厚度能够保证按预计时间拆除。
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