Title :
Numerical Simulation of the Construction for Concrete Crane Beam on Rock Wall and the Thermal Parameters Inversion
Author :
Qiang Sheng ; Chen Shou-kai ; Guo Lei ; Xie Zhi-qiang
Author_Institution :
State Key Lab. of Water Resources & Hydropower Eng. Sci., Wuhan Univ., Wuhan, China
Abstract :
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.
Keywords :
beams (structures); concrete; genetic algorithms; structural engineering; temperature; walls; concrete crane beam construction; genetic algorithm; rock wall; thermal parameter inversion; thermal stress field; Concrete; Conductivity; Cranes; Structural beams; Temperature; Temperature measurement; Temperature sensors;
Conference_Titel :
Information Engineering and Computer Science (ICIECS), 2010 2nd International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-7939-9
Electronic_ISBN :
2156-7379
DOI :
10.1109/ICIECS.2010.5677825