127 results found
Izzuddin BA, Macorini L, Rinaldin G, 2013, Partitioned Modelling for Nonlinear Dynamic Analysis of Reinforced Concrete Buildings for Earthquake Loading, 14th International Conference on Civil, Structural and Environmental Engineering Computing, Publisher: Civil-Comp Press, ISSN: 1759-3433
This paper proposes a new approach for the seismic assessment of reinforced concrete (RC) building structures subject to earthquake loading, considering detailed nonlinear dynamic analysis. Noting the potentially prohibitive computational demand of conventional nonlinear finite element analysis based on a monolithic treatment, the proposed approach utilises recent development in partitioned modelling for parallel processing employing a novel dual super-element concept. A case study of a realistic RC building subject to seismic ground excitation is presented, where monolithic as well as alternative partitioned models are considered. It is shown that the proposed approach achieves exceptional parallel performance, which can be disproportionately more than the number of used partitions, in addition to other major benefits of scalability and overcoming memory bottlenecks. This confirms the prospects of the proposed approach as an accurate and computationally practical method for the nonlinear dynamic analysis of structures, in general, and the seismic assessment of RC buildings, in particular.
Gardner L, Macorini L, Kucukler M, 2013, The continuous strength method for steel and composite design, PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-STRUCTURES AND BUILDINGS, Vol: 166, Pages: 434-443, ISSN: 0965-0911
Macorini L, Izzuddin BA, 2013, Nonlinear analysis of masonry structures using mesoscale partitioned modelling, Advances in Engineering Software, Vol: 60-61, Pages: 58-69
This paper presents an effective and accurate computational strategy for unreinforced brick masonry structures. Mesoscale descriptions allow a realistic representation of the nonlinear structural behaviour of URM, but can pose prohibitive computational demands for large-scale problems. To overcome this drawback, the computational strategy presented in the paper employs the domain partitioning approach, which is coupled with an accurate mesoscale finite element model. This allows the effective parallelisation of the nonlinear structural analysis simulation, where significant speed-up can be achieved in the nonlinear analysis of large masonry structures. The potential and effectiveness of the proposed computational strategy are shown through numerical examples, where full-scale masonry structures are considered.
Xavier FB, Macorini L, Izzuddin BA, 2013, Enhanced robustness of multi-storey buildings with unreinforced masonry infill, Pages: 265-275
Previous work at Imperial College London by Izzuddin and co-workers led to the development of a multi-level framework for the assessment of building robustness under sudden column loss scenarios, and highlighted the significant potential contribution of unreinforced masonry infill panels towards arresting progressive collapse for such scenarios. The latter work considered the contribution of infill panels using equivalent struts, which are inherently approximate particularly in relation to the modelling of openings and general interaction with the surrounding frame. Recent work by the authors has focussed on the development of a mesoscale modelling approach for unreinforced brick masonry, which has been incorporated within a partitioned modelling framework to provide an accurate and efficient approach for predicting the response of masonry components under extreme loading. This paper employs the detailed mesoscale modelling approach for brick masonry infill panels, with and without openings, making comparisons against the simplified equivalent strut models. The outcomes from the detailed mesoscale models are incorporated within the multilevel robustness assessment framework to provide a more accurate evaluation of the contribution of masonry infill panels to the structural robustness of steel composite buildings under sudden column loss. It is confirmed that this contribution is significantly large to merit the consideration of infill panels in robustness design and assessment practice, subject to quality control during the construction process.
Amadio C, Fragiacomo M, Macorini L, 2012, Evaluation of the deflection of steel-concrete composite beams at serviceability limit state, Journal of Constructional Steel Research, Vol: 73, Pages: 95-104, ISSN: 0143-974X
Gardner L, Macorini L, Kucukler M, 2012, Influence of strain hardening on the behaviour and design of steel and steel-concrete composite structures, 8th European Solid Mechanics Conference (ESMC 2012), 9th-13th July, 2012. (Extended Abstract).
Amado C, Macorini L, Sorgon S, et al., 2011, A novel hybrid system with RC-encased steel joists, European Journal of Environmental and Civil engineering, Vol: 15, Pages: 1433-1463, ISSN: 1964-8189
Izzuddin BA, Macorini L, 2011, Multiscale Modelling of Masonry Structures under Extreme Loading, COMPUTATIONAL PLASTICITY XI - Fundamentals and Applications, Publisher: International Center for Numerical Methods in Engineering (CIMNE), Pages: 210-220
Macorini L, Izzuddin BA, 2011, A non-linear interface element for 3D mesoscale analysis of brick-masonry structures, INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING, Vol: 85, ISSN: 0029-5981
Macorini L, Izzuddin BA, 2011, A non-linear interface element for 3D mesoscale analysis of brick-masonry structures, INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING, Vol: 85, Pages: 1584-1608, ISSN: 0029-5981
Macorini L, Izzuddin BA, 2011, Nonlinear Analysis of Masonry Structures usingMesoscale Partitioned Modelling, Civil-Comp Press
Amadio C, Macorini L, Sorgon S, et al., 2011, A novel hybrid system with RC-encased steel joists, EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING, Vol: 15, ISSN: 1964-8189
Gattesco N, Macorini L, Fragiacomo M, 2010, Moment Redistribution in Continuous Steel-Concrete Composite Beams with Compact Cross Section, Journal of Structural Engineering (United States), Vol: 136, ISSN: 1943-541X
Gattesco N, Macorini L, Clemente I, et al., 2010, Shear resistance of spandrels in brick masonry buildings, 8th International Masonry Conference, Pages: 2119-2130
Macorini L, Izzuddin BA, 2010, 3D mesoscale modelling for nonlinear analysis of brick-masonry, 8th International Masonry Conference, Pages: 297-306
Gattesco N, Macorini L, 2009, Novel engineering techniques to improve the in-plane stiffness of wooden floors, 1st International Conference on Protection of Historical Buildings (PROHITECH 09), Publisher: CRC PRESS-TAYLOR & FRANCIS GROUP, Pages: 307-+
Amadio C, Bella M, Macorini L, 2009, Seismic upgrade of existing semi-continuous steel frames: A comparison between the use of concentric steel braces and viscoelastic dissipative systems, 6th International Conference on Behaviour of Steel Structures in Seismic Areas, Publisher: CRC PRESS-TAYLOR & FRANCIS GROUP, Pages: 527-533
Amadio C, Bella M, Bertoni V, et al., 2009, Results of a probabilistic analysis on the seismic performance of PR steel-concrete composite frames, 6th International Conference on Behaviour of Steel Structures in Seismic Areas, Publisher: CRC PRESS-TAYLOR & FRANCIS GROUP, Pages: 217-+
Macorini L, Izzuddin BA, 2009, An Interface Model for Multi-scale Nonlinear Analysis of Masonry Structure, 12th International Conference on Civil, Structural and Environmental Engineering Computing
Macorini L, Izzuddin BA, 2009, An Interface Model for Multi-Scale Nonlinear Analysis of Masonry Structures, 12th International Conference on Civil, Structural and Environmental Engineering Computing
Amadio C, Clemente I, Macorini L, et al., 2008, Seismic behaviour of hybrid systems made of PR composite frames coupled with dissipative bracings, EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS, Vol: 37, ISSN: 0098-8847
Amadio C, Macorini L, Patrono F, et al., 2008, A hybrid RC-encased steel joist system, International FIB Symposium, Publisher: CRC PRESS-TAYLOR & FRANCIS GROUP, Pages: 253-253
Gattesco N, Macorini L, 2008, High reversibility technique for in-plane stiffening of wooden floors, 6th International Conference on Structural Analysis of Historical Construction, Publisher: CRC PRESS-TAYLOR & FRANCIS GROUP, Pages: 1035-+
Amadio C, Bisetto M, Macorini L, 2008, Seismic performance of steel frames coupled with visco-elastic bracings, 14th World Conference on Earthquake Engineering
Gattesco N, Clemente I, Macorini L, et al., 2008, Experimental investigation on the behaviour of spandrels in ancient masonry buildings, 14th World Conference on Earthquake Engineering
Amadio C, Clemente I, Macorini L, et al., 2007, Seismic behaviour of composite frames coupled with viscoelastic dissipative bracings, Pages: 363-368
The paper investigates the dynamic behaviour of partially restrained steel-concrete composite frames coupled with viscoelastic dissipative bracings. A number of time-history analyses have been carried out on a one-storey frame coupled with a viscoelastic dissipative bracing using an advanced numerical model. The purpose of the analyses is to identify the influence of the type of beam-to-column connection and property of viscoelastic bracing on the performance of the hybrid system. The outcomes of the analyses show that the viscoelastic bracing can be used as an effective dissipation system, where the plastic hysteresis of the joints provides a significant contribution to the overall structural performance under destructive earthquakes.
Fragiacomo, Amadio, Macorini, 2007, Short- and long-term performance of the "Tecnaria" stud connector for timber-concrete composite beams, Materials and Structures, ISSN: 1359-5997
Macorini L, Fragiacomo M, Amadio C, et al., 2006, Long-term analysis of steel-concrete composite beams: FE modelling for effective width evaluation, ENGINEERING STRUCTURES, Vol: 28, Pages: 1110-1121, ISSN: 0141-0296
Macorini, Fragiacomo, Amadio, et al., 2006, Long-term analysis of steel-concrete composite beams: FE modelling for effective width evaluation, Engineering Structures, ISSN: 0141-0296
Amadio C, Clemente I, Macorini L, et al., 2006, Seismic analysis of partially restrained composite frames coupled with dissipative bracings, 5th International Conference on Behaviour of Steel Structures in Seismic Areas, Publisher: TAYLOR & FRANCIS LTD, Pages: 565-571
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