Numerical Simulation of the Construction for Concrete Crane Beam on Rock Wall and the Thermal Parameters Inversion

In order to reflect the true temperature field and stress field of concrete crane beam, it is necessary to simulate the construction course. Some of the parameters in numerical simulation have to be obtained by site measuring temperature and inversion. According to the characteristics of concrete temperature field, the basic accelerating genetic algorithm is improved. The improved accelerating genetic algorithm has the merits of high precision and fast calculation. On the base of measured data from a prototype experiment for concrete crane beam on rock wall, some important concrete thermal parameters are inversed by numerical simulation and the improved accelerating genetic algorithm. The calculation temperature and measured value are very close. It shows the method is efficiency. By this way, the later poured beam concrete temperature is controlled well and the beams appear no crack in recent one year. The successful application shows that the back analysis and simulation of concrete temperature field can reflect the factual performance of concrete and give important direction to engineering construction.