Computational Technology Resources - CCP

M.B. Mehrabani¹, X. Zhou², H.-P. Chen¹ and Z. Xiao³

¹School of Engineering, University of Greenwich, United Kingdom
²Department of Mechanical, Aerospace and Civil Engineering, Brunel University, United Kingdom
³School of Civil & Architectural Engineering, Henan University of Technology, Zhengzhou, China

doi:10.4203/ccp.108.196

purchase the full-text of this paper

M.B. Mehrabani, X. Zhou, H.-P. Chen, Z. Xiao, "A Finite Element Model for Simulation of the Structural Behaviour of Steel Fibre Reinforced Concrete Ground Slabs", in J. Kruis, Y. Tsompanakis, B.H.V. Topping, (Editors), "Proceedings of the Fifteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 196, 2015. doi:10.4203/ccp.108.196

Keywords: steel fibres, elasto-plasticity, smeared-crack model, fracture energy, finite element, concrete ground slab, fiber-reinforced concrete, fibers, fracture, ANSYS.

Summary

Steel fibres have been used since 1970s in concrete structures specifically in slabs resting on the ground. The previous analysis methods for the ultimate behaviour of steel fibre reinforced concrete (SFRC) ground slabs are not accurate enough for designers to avoid conservative designs due to the underestimated or overestimated results. This paper presents the newly generalised and simplified finite element analysis methods for SFRC slabs with a high agreement between experimental and numerical results. In order to validate the numerical model, a significant number of full-scale tests of fibre-reinforced concrete ground slab results have been tested. Analytical methods and design formulae have been recommended in literature, including code of practice and design guidance. Based on the observation, the agreement between the experimental and simulation results is more than 96%, which shows a 15-25% improvement in comparison with the previous suggested models. In numerical simulations, a smeared-crack model is used for reproducing the concrete cracking behaviour under loading. To study the soil-structure interaction, the non-linear soil behaviour is simulated by tensionless elastic supports. Then, the ultimate load capacity and crack propagation pattern can be obtained from finite element numerical analyses. The results show that the numerical predictions obtained from finite element analyses agree well with the full-scale experimental data available.

purchase the full-text of this paper (price £20)

go to the previous paper
go to the next paper
return to the table of contents
return to the book description
purchase this book (price £75 +P&P)

	Computational & Technology Resources an online resource for computational, engineering & technology publications
	not logged in - login
Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 108 PROCEEDINGS OF THE FIFTEENTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING Edited by: J. Kruis, Y. Tsompanakis and B.H.V. Topping Paper 196 A Finite Element Model for Simulation of the Structural Behaviour of Steel Fibre Reinforced Concrete Ground Slabs M.B. Mehrabani¹, X. Zhou², H.-P. Chen¹ and Z. Xiao³ ¹School of Engineering, University of Greenwich, United Kingdom ²Department of Mechanical, Aerospace and Civil Engineering, Brunel University, United Kingdom ³School of Civil & Architectural Engineering, Henan University of Technology, Zhengzhou, China doi:10.4203/ccp.108.196 purchase the full-text of this paper Full Bibliographic Reference for this paper M.B. Mehrabani, X. Zhou, H.-P. Chen, Z. Xiao, "A Finite Element Model for Simulation of the Structural Behaviour of Steel Fibre Reinforced Concrete Ground Slabs", in J. Kruis, Y. Tsompanakis, B.H.V. Topping, (Editors), "Proceedings of the Fifteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 196, 2015. doi:10.4203/ccp.108.196 Keywords: steel fibres, elasto-plasticity, smeared-crack model, fracture energy, finite element, concrete ground slab, fiber-reinforced concrete, fibers, fracture, ANSYS. Summary Steel fibres have been used since 1970s in concrete structures specifically in slabs resting on the ground. The previous analysis methods for the ultimate behaviour of steel fibre reinforced concrete (SFRC) ground slabs are not accurate enough for designers to avoid conservative designs due to the underestimated or overestimated results. This paper presents the newly generalised and simplified finite element analysis methods for SFRC slabs with a high agreement between experimental and numerical results. In order to validate the numerical model, a significant number of full-scale tests of fibre-reinforced concrete ground slab results have been tested. Analytical methods and design formulae have been recommended in literature, including code of practice and design guidance. Based on the observation, the agreement between the experimental and simulation results is more than 96%, which shows a 15-25% improvement in comparison with the previous suggested models. In numerical simulations, a smeared-crack model is used for reproducing the concrete cracking behaviour under loading. To study the soil-structure interaction, the non-linear soil behaviour is simulated by tensionless elastic supports. Then, the ultimate load capacity and crack propagation pattern can be obtained from finite element numerical analyses. The results show that the numerical predictions obtained from finite element analyses agree well with the full-scale experimental data available. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £75 +P&P)
Back to top	©Civil-Comp Limited 2023 - terms & conditions