Firstly the target of performance-based fire safety design is set up then the actual time-temperature curve of structural elements can be calculated through utility temperature elevation empirical formula in large space fire .

首先，确定性能化抗火设计目标，利用高大空间建筑火灾下的 空气升温实用公式计算得到结构构件的实际 升温 曲线。

Steam standard time-temperature curve

蒸气标准 时间 - 温度 曲线

Based on the ISO time-temperature curve reinforcement cover reinforcement and concrete strength grade load level and thickness of slabs are discussed for the fire resistance .

并以标准 升温为 条件，探讨了不同的钢筋保护层厚度、钢筋及混凝土强度等级、荷载水平、板厚等因素，对钢筋混凝土简支板抗火性能的影响。

Based on the ISO time-temperature curve the behaviors of the unbonded prestressed concrete continuous slab ( UPCCS ) under fire are investigated .

在实现按照ISO标准 升温 曲线升温的前提下，研究了无粘结预应力混凝土连续板在火灾作用下的火灾行为。