Numerical investigation of the contribution of the soil-structure interaction effects to the seismic performance and the losses of RC buildings

Requena-Garcia-Cruz, María-Victoria; Romero-Sánchez, Emilio; Morales‐Esteban, Antonio

doi:10.1016/j.dibe.2022.100096

Cited by 9 publications

(8 citation statements)

References 27 publications

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“…Therefore, for complex buildings such as the Mosque-Cathedral of Cordoba, it might not be enough to obtain a detailed seismic assessment. Hence, as a future development of this work, special interest is taken in the study of the dynamic behaviour of the building and in considering the effects of the soil-structure interaction [38,39].…”

Section: Discussionmentioning

confidence: 99%

A Model for the Structural and Seismic Assessment of the Mosque-Cathedral of Cordoba

Requena-Garcia-Cruz,

Romero-Sánchez,

Morales-Esteban

et al. 2023

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

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Monumental heritage buildings were typically built without considering the seismic action. Therefore, they are potentially susceptible to seismic damage. The structural assessment and the vulnerability analysis of historical buildings is a complicated task. It requires a complex study and specialised technical skills. In order to gain some insight and to provide refined results, a model for the structural and the seismic performance of the Abd ´al-Rahman I sector of the Mosque-Cathedral of Cordoba (Spain) has been presented. The Mosque-Cathedral of Cordoba, its monumental core and its surroundings were included in the World Heritage List in 1984. Its structural system is based on parallel arcades and naves. It was started to be built in the 8 th century and it has been enlarged several times. This monumental building is located in a seismic area of the southern Iberian Peninsula, characterised by large/very large earthquakes of long-return periods. In this work, a novel 3D model has been developed based on the finite element (FE) method in the OpenSees framework. The model has been elaborated through the analysis of historical data and in situ verifications. An experimental campaign has been carried out to calibrate the numerical model. Gravitational and horizontal nonlinear static analyses have been performed to determine the structural and the seismic capacity of the structure. The results have shown that the building presents the worst seismic behaviour in the direction perpendicular to the arcades. This study represents a pioneer experiment concerning the structural and seismic analysis of this building.

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Section: Discussionmentioning

confidence: 99%

A Model for the Structural and Seismic Assessment of the Mosque-Cathedral of Cordoba

Requena-Garcia-Cruz,

Romero-Sánchez,

Morales-Esteban

et al. 2023

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

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“…In the case of dynamic analysis, Mode 1 is considered to determine the MCR. The solution of Equation ( 16) using the differential transformation method given in the literature by [43], the MCR value is calculated using Equation (38) for Mode 1.…”

Section: Moment Contribution Ratio For Dynamic Loadmentioning

confidence: 99%

“…Requena-Garcia-Cruz et al [38] investigated the impact of SSI on the seismic vulnerability and losses of a 5-story reinforced concrete (RC) building constructed on soft alluvial strata with shallow foundations. Using nonlinear static analysis (NLSA) and incremental dynamic analysis (IDA) in the OpenSees finite-element framework, the research revealed a significant effect of SSI on the fragility and performance of these structures, with potential worsened damage by up to 38% when considering SSI.…”

Section: Introductionmentioning

confidence: 99%

A Method for Determination of Moment Contribution Ratio under Foundation Rotation in Shear Wall-Frame Systems

Bozdogan,

Keskin

2024

Buildings

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In shear wall-frame systems, the foundation rotation that may occur under the shear walls changes the displacements and interstory drift ratios and changes the internal force distribution. This study investigates the effect of foundation rotations under shear walls on internal force distribution in shear-frame systems. The originality of the study lies in considering parabolic loads and dynamic analysis (first mode), in addition to static uniform or triangular distributed loads, when determining the shear wall moment contribution ratio under the influence of foundation rotation. The shear wall contribution ratio, a key parameter in many earthquake codes, is defined as the ratio of the sum of bending moments taken by the shear walls at the base to the overturning moment. It plays a crucial role in determining the building’s behavior. Depending on this ratio, the load-reduction coefficient is changed. This study investigates the effect of foundation rotation on the moment distribution at the base for three different static load cases and the first mode in the dynamic analysis. The multi-story building is modeled as an equivalent sandwich beam. The moment contribution ratio (MCR) was calculated with the help of analytical solutions of the differential equations written for three different load cases in static conditions, and graphs were created for practical use directly calculating the MCR. In the methodology of the study, the initial step involves the calculation of the equivalent sandwich beam stiffness parameters and the foundational rotational spring. Subsequent to these calculations, the MCR values can be directly obtained with the help of graphs. This approach facilitates the rapid and practical determination of the MCR and can be used in the preliminary sizing phase to eliminate possible errors in the data entry of software that performs detailed analysis. In addition, in the presented study, it has been shown that taking a single mode into account is sufficient when calculating MCR values in dynamic analysis.

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“…The ageing effects of the RC frames, the infills, the irregularities in plans and in height or the presence of smooth rebar were considered in the analyses, as presented in [69]. The soil-structure interaction effects have also been tested [70]. It was found that they can worsen the capacity of the medium-rise buildings up to 10%.…”

Section: Capacity Curves Obtained For the Huelva Region (Spain)mentioning

confidence: 99%

Improving the Earthquake Resilience of Primary Schools in the Border Regions of Neighbouring Countries

Estêvão

Morales‐Esteban

Sá³

et al. 2022

Sustainability

Self Cite

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This work summarises the strategy adopted in the European research project PERSISTAH. It aims to increase the resilience of the population, focusing on the existing primary schools in the Algarve (Portugal) and Huelva (Spain) regions. Software was developed to assess the seismic safety of these schools, considering different earthquake scenarios. Seismic retrofitting measures were studied and numerically tested. Some of them were also implemented in the retrofitting activities of two case study schools (one in each country). It was found that the adopted ground motion prediction equations (GMPEs) considerably affect the results obtained with the software, especially for offshore earthquake scenarios. Furthermore, the results show that the masonry buildings would be the most damaged school typologies for all the scenarios considered. Additionally, a set of guidelines was created to support the school community and the technicians related to the construction industry. The goal of these documents is to increase the seismic resilience of the population. Different activities were carried out to train schoolteachers in seismic safety based on the guidelines produced, obtaining positive feedback from them.

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Numerical investigation of the contribution of the soil-structure interaction effects to the seismic performance and the losses of RC buildings

Cited by 9 publications

References 27 publications

A Model for the Structural and Seismic Assessment of the Mosque-Cathedral of Cordoba

A Model for the Structural and Seismic Assessment of the Mosque-Cathedral of Cordoba

A Method for Determination of Moment Contribution Ratio under Foundation Rotation in Shear Wall-Frame Systems

Improving the Earthquake Resilience of Primary Schools in the Border Regions of Neighbouring Countries

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