【摘要】 结构钢在高温下的蠕变不可忽略,推导高温流变本构方程和蠕变,在考虑应力、温度和时间作用下建立平面结构钢梁单元有限元方程,为钢结构的高温(抗火)分析提供合理的依据。更多还原

【Abstract】 The creep of structure steel ca n not be ignored under high temperature. The rheologic constitutive relationship and the creep-stress equations under high temperature are developed. The finite element equations of plane structure beam is established with stress, temperature and time taken into account, which can provide rational basis for thermal or fire resistance analysis of reinforced steel structures.更多还原