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为了研究火灾下多高层建筑组合楼板中的温度场，根据传热学的基本原理，用有限差分法，对火灾下组合楼板温度场的计算方法进行了研究，并编制了计算程序。同时，通过对标准升温条件下影响组合楼板温度场的一些参数进行分析，推导了简化公式。
In order to study the temperature field in multi-story high-rise buildings under fire, according to the basic principles of heat transfer, finite difference method was used to study the calculation method of temperature field of fired composite floor and the calculation program was compiled. At the same time, the simplified formulas were deduced by analyzing some parameters that affect the temperature field of the composite slab under the standard temperature rising conditions.