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C. Chacara¹, F. Cannizzaro², B. Panto³, D. Rapicavoli², P.B. Lourenco⁴ and I. Calio²

¹Pontificia Universidad Católica del Perú, San Miguel, Lima, Peru
²University of Catania, Department Engineering and Architectural, Catania, Italy
³Department of Engineering, Durham University, Durham, UK
⁴University of Minho, Department of Civil Engineering, Azurem, Guimaraes, Portugal

doi:10.4203/ccc.3.9.6

C. Chacara, F. Cannizzaro, B. Panto, D. Rapicavoli, P.B. Lourenco, I. Calio, "Evaluation of the Response of a Masonry Cross Vault Subjected to Vertical Loading using the Discrete Macro-Element Method", in B.H.V. Topping, J. Kruis, (Editors), "Proceedings of the Fourteenth International Conference on Computational Structures Technology", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 3, Paper 9.6, 2022, doi:10.4203/ccc.3.9.6

Keywords: curved structures, fired brick masonry, fiber approach, numerical simulations, nonlinear static analysis, plastic damage.

Abstract

This paper was focused on the application of an innovative modelling approach, known as the Discrete Macro-Element Method (DMEM), for simulating the experimental response of a ribbed masonry cross vault subjected to vertical loading. This numerical approach is based on a simplified mechanical scheme which can simulate the main in-plane and out-of-plane mechanisms of masonry structures. The numerical model of the ribbed masonry cross vault, described by approximately 1250 degrees of freedom, was subjected to an incremental vertical load aiming at simulating the experimental setup. Two different values of cohesion (0.05 MPa and 0.10 MPa) were taken in consideration aiming at assessing the influence of this mechanical property on the nonlinear response of the masonry specimen when subjected to vertical loading. The displacement of three monitored points as well as the vertical reaction of the numerical model were assessed and compared to those obtained experimentally. It was observed that the numerical model presented a slightly higher stiffness than the experimental one; however, it was possible to replicate the maximum vertical capacity of the masonry cross vault. The comparison between numerical and experimental results demonstrated the capabilities of this simplified numerical approach for assessing structural elements with a complex geometry considering a reduced number of degrees of freedom and with an acceptable level of accuracy.

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Front Page Browse CCC CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Conferences ISSN 2753-3239 CCC: 3 PROCEEDINGS OF THE FOURTEENTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL STRUCTURES TECHNOLOGY Edited by: B.H.V. Topping and J. Kruis Paper 9.6 Evaluation of the Response of a Masonry Cross Vault Subjected to Vertical Loading using the Discrete Macro-Element Method C. Chacara¹, F. Cannizzaro², B. Panto³, D. Rapicavoli², P.B. Lourenco⁴ and I. Calio² ¹Pontificia Universidad Católica del Perú, San Miguel, Lima, Peru ²University of Catania, Department Engineering and Architectural, Catania, Italy ³Department of Engineering, Durham University, Durham, UK ⁴University of Minho, Department of Civil Engineering, Azurem, Guimaraes, Portugal doi:10.4203/ccc.3.9.6 Full Bibliographic Reference for this paper C. Chacara, F. Cannizzaro, B. Panto, D. Rapicavoli, P.B. Lourenco, I. Calio, "Evaluation of the Response of a Masonry Cross Vault Subjected to Vertical Loading using the Discrete Macro-Element Method", in B.H.V. Topping, J. Kruis, (Editors), "Proceedings of the Fourteenth International Conference on Computational Structures Technology", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 3, Paper 9.6, 2022, doi:10.4203/ccc.3.9.6 Keywords: curved structures, fired brick masonry, fiber approach, numerical simulations, nonlinear static analysis, plastic damage. Abstract This paper was focused on the application of an innovative modelling approach, known as the Discrete Macro-Element Method (DMEM), for simulating the experimental response of a ribbed masonry cross vault subjected to vertical loading. This numerical approach is based on a simplified mechanical scheme which can simulate the main in-plane and out-of-plane mechanisms of masonry structures. The numerical model of the ribbed masonry cross vault, described by approximately 1250 degrees of freedom, was subjected to an incremental vertical load aiming at simulating the experimental setup. Two different values of cohesion (0.05 MPa and 0.10 MPa) were taken in consideration aiming at assessing the influence of this mechanical property on the nonlinear response of the masonry specimen when subjected to vertical loading. The displacement of three monitored points as well as the vertical reaction of the numerical model were assessed and compared to those obtained experimentally. It was observed that the numerical model presented a slightly higher stiffness than the experimental one; however, it was possible to replicate the maximum vertical capacity of the masonry cross vault. The comparison between numerical and experimental results demonstrated the capabilities of this simplified numerical approach for assessing structural elements with a complex geometry considering a reduced number of degrees of freedom and with an acceptable level of accuracy. download the full-text of this paper (PDF, 9 pages, 586 Kb) go to the previous paper go to the next paper return to the table of contents return to the volume description
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