SOLUTION OF CONCRETE HUMIDITY DIFFUSION PARAMETERS BASED ON PARTICLE SWARM OPTIMIZATION

Based on the relative humidity data measured in laboratory test, combining with humidity field three-dimensional finite element method and particle swarm optimization algorithm to the inversion the characteristic parameter of concrete humidity diffusion, this paper carry out the back analysis of parameters of concrete moisture diffusion. From the result, the calculation value are nearly consistent with the measured data, and the maximum error between them is about 3.5%, that's to say, simulation results with inversion parameters meets accuracy requirements, and the calculation results can guide construction. Otherwise, we can also know that as one kind of optimization methods, the particle swarm optimization is simple and high efficiency.