Computational Technology Resources - CCP

L. Leonetti, A. Bilotta, G. Garcea, "Efficient Shakedown Analysis of Reinforced Concrete Three-Dimensional Frames subject to a Large Number of Loads", in , (Editors), "Proceedings of the Twelfth International Conference on Computational Structures Technology", Civil-Comp Press, Stirlingshire, UK, Paper 236, 2014. doi:10.4203/ccp.106.236

Keywords: shakedown analysis, direct methods, three-dimensional frames..

Summary

Using the static theorem and an algorithm based on dual decomposition, a formulation for the shakedown analysis of three-dimensional frames is proposed. An efficient treatment of the load combinations and an accurate and simple definition of the crosssection yield function are proposed to increase effectiveness and to make shakedown analysis an affordable design tools. In particular, considering only flexural plastic mechanisms, the section yield function is obtained by approximating the true values obtained by exploiting the support function concept, by means of a Minkowski sums of ellipsoids. The return mapping process, coming from the dual decomposition, is solved at the element level by means of an algorithm based again on the dual decomposition. It enables the problem to be decomposed at the ellipsoid level and to use a simple and inexpensive radial return mapping process for its solution. A series of numerical tests are presented to show both the accuracy and the effectiveness of the proposed formulation.

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 £65 +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: 106 PROCEEDINGS OF THE TWELFTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL STRUCTURES TECHNOLOGY Edited by: Paper 236 Efficient Shakedown Analysis of Reinforced Concrete Three-Dimensional Frames subject to a Large Number of Loads L. Leonetti, A. Bilotta and G. Garcea Dipartimento di Informatica, Modellistica, Elettronica e Sistemistica, University of Calabria, Rende, Italy doi:10.4203/ccp.106.236 purchase the full-text of this paper Full Bibliographic Reference for this paper L. Leonetti, A. Bilotta, G. Garcea, "Efficient Shakedown Analysis of Reinforced Concrete Three-Dimensional Frames subject to a Large Number of Loads", in , (Editors), "Proceedings of the Twelfth International Conference on Computational Structures Technology", Civil-Comp Press, Stirlingshire, UK, Paper 236, 2014. doi:10.4203/ccp.106.236 Keywords: shakedown analysis, direct methods, three-dimensional frames.. Summary Using the static theorem and an algorithm based on dual decomposition, a formulation for the shakedown analysis of three-dimensional frames is proposed. An efficient treatment of the load combinations and an accurate and simple definition of the crosssection yield function are proposed to increase effectiveness and to make shakedown analysis an affordable design tools. In particular, considering only flexural plastic mechanisms, the section yield function is obtained by approximating the true values obtained by exploiting the support function concept, by means of a Minkowski sums of ellipsoids. The return mapping process, coming from the dual decomposition, is solved at the element level by means of an algorithm based again on the dual decomposition. It enables the problem to be decomposed at the ellipsoid level and to use a simple and inexpensive radial return mapping process for its solution. A series of numerical tests are presented to show both the accuracy and the effectiveness of the proposed formulation. 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 £65 +P&P)
Back to top	©Civil-Comp Limited 2023 - terms & conditions