Building damages during the September 19, 2017 earthquake in Mexico City and seismic retrofitting of existing first soft-story buildings

Jara, José; Hernandez, Ernesto; Olmos, B.A.; Martínez, Guillermo

doi:10.1016/j.engstruct.2019.109977

Cited by 30 publications

(10 citation statements)

References 25 publications

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“…Another recent intense earthquakes in Mexico , with high magnitude (8.2 Mw) caused significant damages in housing which especially affected the soft-story buildings that are subject to strong motions (JARA et al, 2020). It caused damage of 600 buildings and more than 1000 buildings classified in different risk levels.…”

Section: Geologic Setting Of Mexicomentioning

confidence: 99%

Análise qualitativa de anomalias geofísicas e sismicidade no México: um mapeamento integrado por GMT

Lemenkova

2022

Bol. Geogr.

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Dados geofísicos de fontes abertas são amplamente usados como suporte de análise integrada em estudos geológicos regionais em áreas sismicamente ativas, como o México. Alta sismicidade com terremotos repetitivos ocorre em áreas das zonas de subducção formadas durante a evolução tectônica e se correlaciona com campos anômalos geofísicos. Este artigo investiga a correspondência entre o cenário geofísico, topográfico e sísmico do México usando o conjunto de ferramentas de script Generic Mapping Tools (GMT) para processamento de dados. A abordagem para mapeamento automatizado usando o GMT e scripts de shell é apresentada como um método cartográfico avançado com o objetivo de obter insights sobre a geologia e a geofísica do México. Os dados foram obtidos de conjuntos de dados de alta resolução de código aberto: GEBCO, EGM-2008, gravidade derivada de satélite, anomalia magnética EMAG2 e banco de dados sísmico IRIS. A correspondência entre os dados geológicos e geofísicos do México foi verificada através da comparação entre os mapas temáticos, distribuição regional de anomalias gravitacionais e localizações de terremotos. Sete novos mapas são realizados em dados geológicos, geofísicos, topográficos e sísmicos. O mapeamento sísmico é apresentado para o período de 2007-2021 demonstrando eventos com magnitude de 1,5 a 7,2. O impacto dos processos tectônicos que formaram a trincheira da América Central e o cinturão vulcânico transmexicano ativo na alta sismicidade regional com terremotos intensos é explorado. O estudo concluiu que o GMT é uma ferramenta eficaz para mapeamento e análise cartográfica de alta qualidade. Os dados IRIS podem ser usados para análises geológicas do México.

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Section: Geologic Setting Of Mexicomentioning

confidence: 99%

Análise qualitativa de anomalias geofísicas e sismicidade no México: um mapeamento integrado por GMT

Lemenkova

2022

Bol. Geogr.

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“…A transfer story has several types, for example, transfer beam (girder) [1], transfer slab (plate) [2][3][4][5][6][7], or transfer box [8], among which the transfer slab structure is quite popular due to being free from the limitation of the forms of the upper and lower structures and the flexible axes distribution of upper and lower stories. Due to the space requirement of subway station, the height of frame structure differs greatly from the first floor to the second floor, resulting in structural stiffness mutation and the formation of soft-story [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27]. Buildings with soft-story had a significantly higher proportion of serious damage than other conventional types of buildings after the earthquake in Hyogo-ken Nambu (1995) as well as in Mexico City (1985) [7].…”

Section: Introductionmentioning

confidence: 99%

“…Buildings with soft-story had a significantly higher proportion of serious damage than other conventional types of buildings after the earthquake in Hyogo-ken Nambu (1995) as well as in Mexico City (1985) [7]. The internal force of the vertical anti-lateral component of the structure is transferred downward by the horizontal conversion component, and the structure displays obvious vertical irregularity [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27]. The plate-column joints of this structure have complex forces under seismic loads; therefore, some scholars have carried out studies on such structures from the perspective of the joints [4][5][6][28][29][30][31][32][33][34][35][36].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Frame-Supported Shear Wall Structure of High-Rise Buildings with Transfer Slab in Metro Depot

Xia

Liu³

et al. 2022

Buildings

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Taking the frame-supported shear wall structure of a 102.1 m high metro depot as the test object, the structure has obvious vertical irregularity, and a quasi-static test was carried out on the structural model with the scale of 1/5. The damage development and strain of the structure were observed by applying displacement loads under different seismic actions, and the experimental phenomena and measured data were analyzed. The results show that the safety performance of the structure meets the seismic requirements of the MCE (Maximum considered earthquake) condition. Under the action of load, a reasonable damage mechanism is formed in which the components above the transfer story crack first and those below the transfer story crack later, which is in line with the design concept of “the performance objective of the bottom frame structure is higher than that of the upper shear wall structure”. The transfer plate is mainly subjected to shear deformation, the possible shear failure of the transfer plate should be avoided by reasonable design. Due to the large height difference between the first floor and the second floor, the structure may be adversely affected, so it is necessary to make the yielding floor appear in the bottom strengthening part above the transfer story. Under the SLE (Service level earthquake) and DBE (Design based earthquake) conditions, the bottom frame of the structure is mainly subjected to elastic deformation. Under the MCE (Maximum considered earthquake) condition, the bottom frame of the structure causes a lot of damage, increases energy consumption and decreases stiffness, which further proves that “the performance goal of the bottom frame structure is higher than that of the upper shear wall structure”.

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“…In the recent years all over the world an elevated number of seismic events was seen, especially in the southern subregion of Europe [1]- [4]. These events caused important damages to the architectural heritage and lead to the need of in-depth investigation on the quality of materials and buildings.…”

Section: Introductionmentioning

confidence: 99%

“Scaglia Rossa” Experimental Campaign and Model Updating for Numerical Damage Evaluation

Salachoris¹,

Magagnini²,

Clementi³

2021

Proceedings of the 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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This paper outlines the characterization of masonry walls composed of "Scaglia Rossa", a typical stone of the Apennine area between the Umbria and Marche Regions in Central Italy. The study focuses the assessment of the mechanical behavior by means of an experimental campaign carried out in the laboratory of the Polytechnic University of Marche, where the samples of "Scaglia Rossa" masonry, obtained from the controlled demolition of three school buildings, were reconstructed with the same techniques of the 1950s-'60s, and then tested in order to identify both the constituent materials, stone and mortar, and the composite masonry. The experimental tests were prior to a numerical analysis implemented by the adoption of a nonlinear model capturing the cracking behavior. The main mechanical parameters were then calibrated by means of an optimization algorithm of Levenberg-Marquardt, considering a continuous approach in macro-modelling techniques and obtaining resistance parameters not deriving directly from the experimental tests. The comparison between the results obtained from the Levenberg -Marquardt algorithm by changing the parameters of the damage model based on data given by the experimental campaign allowed to confirm the validity of the approach used.

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Building damages during the September 19, 2017 earthquake in Mexico City and seismic retrofitting of existing first soft-story buildings

Cited by 30 publications

References 25 publications

Análise qualitativa de anomalias geofísicas e sismicidade no México: um mapeamento integrado por GMT

Análise qualitativa de anomalias geofísicas e sismicidade no México: um mapeamento integrado por GMT

Experimental Study of Frame-Supported Shear Wall Structure of High-Rise Buildings with Transfer Slab in Metro Depot

“Scaglia Rossa” Experimental Campaign and Model Updating for Numerical Damage Evaluation

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