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Structural Engineering and Mechanics Volume 57, Number 3, February10 2016 , pages 425-439 DOI: https://doi.org/10.12989/sem.2016.57.3.425 |
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Investigation of fresh concrete behavior under vibration using mass-spring model |
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Gultekin Aktas
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| Abstract | ||
| This paper deals with the behavior of fresh concrete that is under vibration using mass-spring model (MSM). To this end, behaviors of two different full scale precast concrete molds were investigated experimentally and theoretically. Experiments were performed under vibration with the use of a computerbased data acquisition system. Transducers were used to measure time-dependent lateral displacements at some points on mold while mold is empty and full of fresh concrete. Analytical modeling of molds used in experiments were prepared by three dimensional finite element method (3D FEM) using software. Modeling of full mold, using MSM, was made to solve the problem of dynamic interaction between fresh concrete and mold. Numerical displacement histories obtained from time history analysis were compared with experimental results. The comparisons show that the measured and computed results are compatible. | ||
| Key Words | ||
| mass spring model (MSM); precast concrete mold; compaction of fresh concrete; vibration; modeling of full scale mold; 3D finite element method; dynamic interaction of fresh concrete-mold | ||
| Address | ||
| Gultekin Aktas: Department of Civil Engineering, Dicle University, 21280 Diyarbakir, Turkey | ||