A proposal for an alternative structural modular solution

Ali Dalalbashi

doi:10.1016/j.jobe.2024.108709

2024-05-01

PRE

Ali Dalalbashi *

Jorge Pinto

Cristina Reis

Fernando Tavares Pimenta

Nuno Oliveira Ferreira

Nelson Bento Pereira

DOI：10.1016/j.jobe.2024.108709

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摘要

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Modular construction has gained significant attention as an innovative building method in recent years due to its numerous advantages over traditional construction. However, achieving simple yet high-performance modular structures presents unique challenges for structural performance, fabrication, and overall construction. To address these challenges, this paper proposes an innovative approach called the MICADO method, which uses a steel frame-supported modular system and prefabricated panels for exterior walls. This study aims to evaluate the structural performance of the MICADO method under seismic loads and different parametric studies, including plan shape, number of stories, roof systems, and openings. A nonlinear pushover analysis was conducted, and the results indicate that the MICADO method produces acceptable performance, high ductility, and an adequate safety margin against failure under seismic loads. Additionally, a linear analysis was used to evaluate the element resistance and structural stability, and the results show that plan shapes significantly affect structural performance due to load distribution. Moreover, the results indicate that location and number of openings significantly affect structural behavior due to the use of columns with higher stiffness. The study concludes that the proposed structural solution method is suitable for buildings with a maximum of two stories, measuring 12 m in length and 7 m in width.

Keyword:

Modular construction

Modular steel building (MSB)

Seismic load

Steel structures

Industrialized construction

Modular insulated concrete core-advanced and

optimized panelized production system (MI-CADO)