Nonlinear dynamic analysis for multi-storey RC structures with hybrid base isolation systems in presence of bi-directional ground motions

Cancellara, Donato; Angelis, Fabio De

doi:10.1016/j.compstruct.2016.07.030

Cited by 48 publications

(19 citation statements)

References 4 publications

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“…This is also demonstrated by the latest achievements in this field, regarding systems incorporating viscous [17][18][19][20][21][22][23][24][25][26][27], metallic yielding [28][29][30] …”

Section: Supplemental Damping-based Retrofit Hypothesismentioning

confidence: 97%

Existing prefab R/C industrial buildings: Seismic assessment and supplemental damping-based retrofit

Sorace

Terenzi

2017

Soil Dynamics and Earthquake Engineering

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“…This is also demonstrated by the latest achievements in this field, regarding systems incorporating viscous [17][18][19][20][21][22][23][24][25][26][27], metallic yielding [28][29][30] …”

Section: Supplemental Damping-based Retrofit Hypothesismentioning

confidence: 97%

Existing prefab R/C industrial buildings: Seismic assessment and supplemental damping-based retrofit

Sorace

Terenzi

2017

Soil Dynamics and Earthquake Engineering

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“…This is based on the addition of base-isolation devices. However, their implementation is mainly recommended in multi-storey buildings and it is very complex [10]. Therefore, in this paper, they have not been considered since the Huelva’s schools are of one to two storeys.…”

Section: Introductionmentioning

confidence: 99%

An index-based method for evaluating seismic retrofitting techniques. Application to a reinforced concrete primary school in Huelva

et al. 2019

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A project named PERSISTAH ( Projetos de Escolas Resilientes aos SISmos no Território do Algarve e de Huelva , in Portuguese) is being developed. It aims to cooperatively assess and improve the seismic vulnerability of primary schools in the Algarve (Portugal) and Huelva (Spain). A large number of schools have to be analysed. In order to determine which seismic retrofitting technique is optimal, an index-based method is presented in this paper. It considers three parameters: first, the efficiency of the seismic retrofitting technique in relation to the structural improvement obtained; second, the cost of the implementation of the retrofitting technique; and third, the architectural impact. It should be mentioned that a specific measurement for each solution according to its geometry has been performed. Also, coefficients to consider the singularities of each analysis and the importance of the parameters (number of buildings, typology, available funds, etc.) in the study are considered. The most representative primary school of Huelva has been chosen to test the index-based method. The most suitable retrofitting techniques for this type of buildings have been tested. The retrofitting technique which most increased the seismic performance has been the addition of X and V bracings within the building’s bays. Furthermore, the analyses have revealed that adding the retrofitting elements in the most vulnerable direction of the building provides a high efficiency. The results have also shown that implementing techniques of lower architectural impact gives acceptable results. The analysis of the mean damage level index has shown that the building would experiment a severe damage. All the retrofitting techniques applied have reduced it, at least, up to moderate damage. Finally, it should be noted that the position of the retrofitting elements is also paramount for providing an optimal retrofitting.

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“…These characteristics make the Algarve-Huelva's schools considerably vulnerable to earthquakes. In the case of Huelva, several typologies of buildings have been identified: linear (77 buildings), compact (88), intersecting (50), juxtaposition (4), sports (10) and prism (16) [1]. They share the same characteristics regarding the structural elements and the bays' dimensions, the number of storeys and their height as well as the distribution in plan.…”

Section: Introductionmentioning

confidence: 99%

An Index-Based Method for Evaluating Seismic Retrofitting Techniques. Application to a Reinforced Concrete Primary School in Huelva

Requena-Garcia-Cruz¹,

Morales‐Esteban²,

Neyra³

et al. 2020

Earth and Its Atmosphere

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A project named PERSISTAH (Projetos de Escolas Resilientes aos SISmos no Territó rio do Algarve e de Huelva, in Portuguese) is being developed. It aims to cooperatively assess and improve the seismic vulnerability of primary schools in the Algarve (Portugal) and Huelva (Spain). A large number of schools have to be analysed. In order to determine which seismic retrofitting technique is optimal, an index-based method is presented in this paper. It considers three parameters: first, the efficiency of the seismic retrofitting technique in relation to the structural improvement obtained; second, the cost of the implementation of the retrofitting technique; and third, the architectural impact. It should be mentioned that a specific measurement for each solution according to its geometry has been performed. Also, coefficients to consider the singularities of each analysis and the importance of the parameters (number of buildings, typology, available funds, etc.) in the study are considered. The most representative primary school of Huelva has been chosen to test the indexbased method. The most suitable retrofitting techniques for this type of buildings have been tested. The retrofitting technique which most increased the seismic performance has been the addition of X and V bracings within the building's bays. Furthermore, the analyses have revealed that adding the retrofitting elements in the most vulnerable direction of the building provides a high efficiency. The results have also shown that implementing techniques of lower architectural impact gives acceptable results. The analysis of the mean damage level index has shown that the building would experiment a severe damage. All the retrofitting techniques applied have reduced it, at least, up to moderate damage. Finally, it should be noted that the position of the retrofitting elements is also paramount for providing an optimal retrofitting.

show abstract

Nonlinear dynamic analysis for multi-storey RC structures with hybrid base isolation systems in presence of bi-directional ground motions

Cited by 48 publications

References 4 publications

Existing prefab R/C industrial buildings: Seismic assessment and supplemental damping-based retrofit

Existing prefab R/C industrial buildings: Seismic assessment and supplemental damping-based retrofit

An index-based method for evaluating seismic retrofitting techniques. Application to a reinforced concrete primary school in Huelva

An Index-Based Method for Evaluating Seismic Retrofitting Techniques. Application to a Reinforced Concrete Primary School in Huelva

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