A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Seismic behavior of buildings in Mexico City during the 2017 Puebla–Morelos earthquake
After the September 19, 1985 earthquake, the September 19, 2017 earthquake (Mw = 7.1) has been the most damaging earthquake which has affected Mexico City. More than 1600 buildings were severely damaged or collapsed or have been demolished. Many of these damaged buildings were constructed according to seismic codes, more than 700 of them were designed according to collapse prevention seismic codes. Although spectral accelerations were near or exceeded those recorded at the SCT site in 1985 within the lakebed zone of former Lake Xochimilco, all spectral accelerations were reasonably below the design spectra for building codes of Mexico City since 1987 in the remaining lakebed regions of lakes Texcoco and Chalco. In this paper, the authors report and discuss the seismic behavior of more than 1600 damaged buildings in Mexico City and the connection of the identified extent of damage with the year of construction and the absence or presence of seismic provisions. Parameters such as building heights, structural irregularities, distinctive plans, tilting, settlements, structural pounding, previous damage, and weakening or deterioration are also discussed within that context. Spectral acceleration ordinates from recorded ground motions are compared with those specified by seismic codes of Mexico City for different times. Damage spectra are used to relate the severity of the damage for selected acceleration records. It is concluded that the observed seismic performance in buildings, including those built according to collapse-prevention seismic codes, was not good enough from engineering, social and economic perspectives. Therefore, earthquake-resistant design for future building codes for Mexico City should evolve towards resilient-based seismic design.
Seismic behavior of buildings in Mexico City during the 2017 Puebla–Morelos earthquake
After the September 19, 1985 earthquake, the September 19, 2017 earthquake (Mw = 7.1) has been the most damaging earthquake which has affected Mexico City. More than 1600 buildings were severely damaged or collapsed or have been demolished. Many of these damaged buildings were constructed according to seismic codes, more than 700 of them were designed according to collapse prevention seismic codes. Although spectral accelerations were near or exceeded those recorded at the SCT site in 1985 within the lakebed zone of former Lake Xochimilco, all spectral accelerations were reasonably below the design spectra for building codes of Mexico City since 1987 in the remaining lakebed regions of lakes Texcoco and Chalco. In this paper, the authors report and discuss the seismic behavior of more than 1600 damaged buildings in Mexico City and the connection of the identified extent of damage with the year of construction and the absence or presence of seismic provisions. Parameters such as building heights, structural irregularities, distinctive plans, tilting, settlements, structural pounding, previous damage, and weakening or deterioration are also discussed within that context. Spectral acceleration ordinates from recorded ground motions are compared with those specified by seismic codes of Mexico City for different times. Damage spectra are used to relate the severity of the damage for selected acceleration records. It is concluded that the observed seismic performance in buildings, including those built according to collapse-prevention seismic codes, was not good enough from engineering, social and economic perspectives. Therefore, earthquake-resistant design for future building codes for Mexico City should evolve towards resilient-based seismic design.
Seismic behavior of buildings in Mexico City during the 2017 Puebla–Morelos earthquake
Asian J Civ Eng
Tena-Colunga, A. (author) / Hernández-Ramírez, H. (author) / Godínez-Domínguez, E. A. (author) / Pérez-Rocha, L. E. (author) / Grande-Vega, A. (author) / Urbina-Californias, L. A. (author)
Asian Journal of Civil Engineering ; 22 ; 649-675
2021-06-01
27 pages
Article (Journal)
Electronic Resource
English
Reconnaissance of the 2017 Puebla, Mexico earthquake
| British Library Online Contents | 2018
Reconnaissance of the 2017 Puebla, Mexico earthquake
| British Library Online Contents | 2018