Abstract
During the Puebla earthquake on September 19, 2017, about 200 steel buildings were subjected to a severe shake in the State of Mexico, Puebla, Morelos, and Mexico City. Although null or minor structural damage was reported, design and assembly opportunity areas in some beam–column moment joints were identified during the post-seismic inspections. With this in mind, six beam–column connections, widely employed in steel frame structures by the local practice, were experimentally tested through natural-scale. A damage concentration with not enough ductile response for high-ductility steel structures was reported. Welding parameters and fabrications details are emphasized to improve the response for new structures, and a rehabilitation suggestion for existing structures is discussed. This research is part of a study that aims to establish the vulnerability of steel structures in Mexico.
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Analytical models, earthquake ground motions, and results are available upon request to the corresponding author.
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Acknowledgements
The master fellowship granted to the second author by the National Science and Technology Council of Mexico (Conacyt) is gratefully acknowledged. Also, the authors wish to acknowledge Marcos Chávez-Cano, Carlos Moss, Gabriel Guerra, and the Staff of the Materials and Structures Laboratory of the Engineering Institute, UNAM.
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Consejo Nacional de Ciencia y Tecnología (CONACYT) for the master fellowship granted to the second author.
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Beam–column connections were experimentally tested through natural-scale. A damage concentration with not enough ductile response for high-ductility steel structures was reported. The study aims to establish the vulnerability of existing steel structures. Test results were compared with ASCE 41 predictions.
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Tapia-Hernández, E., Santiago-Flores, A. & Guerrero-Bobadilla, H. Performance of seismic steel beam–column moment joints. Bull Earthquake Eng 20, 6741–6761 (2022). https://doi.org/10.1007/s10518-022-01456-2
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DOI: https://doi.org/10.1007/s10518-022-01456-2