SHORT-TERM THERMAL CREEP MODEL OF CONCRETE BASED ON EXPERIMENTS
The influences of stress level,load-lasting time,temperature and concrete strength on the short-term thermal creep of concrete are investigated based on experiments.It is shown that the short-term thermal creep of concrete is a linear function of the stress level,a power function of the load-lasting time,a parabolic function of the temperature and affected by the concrete strength.The influences of the concrete strength and the temperature are obviously coupled.A calculation model for the short-term thermal creep of concrete is proposed based on the experimental results.It can be used to analyze the mechanical performance of concrete structures subjected to high temperature.