Comparative analysis of the impact of design and detailing provisions for RC moment resisting frames under the first- and second-generation of Eurocode 8

Maranhão, Helder; Varum, Humberto; Melo, José; Correia, António A.

doi:10.1016/j.engstruct.2024.117809

Engineering Structures

2024

DOI: 10.1016/j.engstruct.2024.117809

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Comparative analysis of the impact of design and detailing provisions for RC moment resisting frames under the first- and second-generation of Eurocode 8

Helder Maranhão,

Humberto Varum,

José Melo

et al.

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Cited by 4 publications

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Code-based brittle capacity models for seismic assessment of pre-code RC buildings: comparison and consequences on retrofit

Scala,

De Risi,

Verderame

2024

Bull Earthquake Eng

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The existing Reinforced Concrete (RC) buildings stock is often characterized by a significant seismic vulnerability, due to the absence of capacity design principles, even in regions with high seismic hazard, such as Italy. Approximately 67% of existing RC buildings in Italy have been designed without considering seismic actions (GLD), resulting in very low transverse reinforcement amount in beams and, particularly, in columns. Additionally, beam-column joints typically totally lack stirrups. Consequently, shear failures under seismic actions are very likely for this pre-code building typology, often limiting their seismic capacity. However, the assessment of shear failures in beams/columns or joints varies significantly from code to code worldwide. The main goal of this work is to quantify the impact of different code-based brittle capacity models on the seismic capacity assessment and retrofit, focusing on GLD Italian pre-1970 RC buildings. This comparative analysis is carried out by first considering three current codes, emphasizing their, even significant, differences: European (EN 1998-3-1. 2005), Italian (D.M. 2018), and American (ASCE SEI/41 2017) standards. Then, shear capacity models prescribed by the current drafts of the next generation of Eurocodes are implemented and compared to the current models. The assessment includes: (i) a parametric comparison among models; (ii) the evaluation of case-study buildings capacity in their as-built condition and after shear strengthening interventions. The latter is performed on 3D “bare” models, due to the lack of practical guidance in most codes on modelling masonry infills.

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Code-based brittle capacity models for seismic assessment of pre-code RC buildings: comparison and consequences on retrofit

Scala,

De Risi,

Verderame

2024

Bull Earthquake Eng

View full text Add to dashboard Cite

show abstract

RC wall building structures: Comparison of first and second generation Eurocode 8 seismic design and detailing strategies

Maranhão,

Varum,

Melo

et al. 2024

Engineering Structures

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Exploring behaviour factors and chord rotation in RC MRF structures: Nonlinear analysis based on second generation of Eurocode 8

Maranhão,

Varum,

Melo

2025

Engineering Structures

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Comparative analysis of the impact of design and detailing provisions for RC moment resisting frames under the first- and second-generation of Eurocode 8

Cited by 4 publications

References 4 publications

Code-based brittle capacity models for seismic assessment of pre-code RC buildings: comparison and consequences on retrofit

Code-based brittle capacity models for seismic assessment of pre-code RC buildings: comparison and consequences on retrofit

RC wall building structures: Comparison of first and second generation Eurocode 8 seismic design and detailing strategies

Exploring behaviour factors and chord rotation in RC MRF structures: Nonlinear analysis based on second generation of Eurocode 8

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