Application of steel in refurbishment of earthquake-prone buildings

Lakušić, Stjepan

doi:10.14256/jce.2970.2020

Cited by 5 publications

(4 citation statements)

References 10 publications

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“…That means that sustainable materials and innovative concepts [70][71][72][73] should be used and energy efficiency ensured [74,75]. Various methods are used for strengthening of masonry buildings [76][77][78] and materials such as FRP and TRM will probably be adopted due to their compatibility and reversibility.…”

Section: Discussionmentioning

confidence: 99%

Post-Earthquake Damage Assessment—Case Study of the Educational Building after the Zagreb Earthquake

et al. 2021

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In the wake of recent strong earthquakes in Croatia, there is a need for a detailed and more comprehensive post-earthquake damage assessment. Given that masonry structures are highly vulnerable to horizontal actions caused by earthquakes and a majority of the Croatian building stock is made of masonry, this field is particularly important for Croatia. In this paper, a complete assessment of an educational building in Zagreb Lower Town is reported. An extensive program of visual inspection and geometrical surveys has been planned and performed. Additionally, an in situ shear strength test is presented. After extensive fieldwork, collected data and results were input in 3Muri software for structural modeling. Moreover, a non-linear static (pushover) analysis was performed to individuate the possible failure mechanisms and to compare real-life damage to software results.

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Section: Discussionmentioning

confidence: 99%

Post-Earthquake Damage Assessment—Case Study of the Educational Building after the Zagreb Earthquake

et al. 2021

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“…Some details of the construction work are shown in the following photographs (figures 18, 19, and 20). It can be seen that in some technical solutions, steel was used to achieve seismic resistance due to its numerous advantages in accordance with [15]. Thanks to properly coordinated work of all participants in this renovation project, with combined efforts by the investor, designer and contractor, all works were successfully completed in the winter of 2020.…”

Section: Realisation and Supervision Of Workmentioning

confidence: 99%

Structural renovation of residential building in Zagreb after the 22 March 2020 earthquake

Lakušić¹

2021

JCE

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The phases that must be completed so that a building damaged in earthquake that struck Zagreb on 22 March 2020 can be renovated and strengthened to the required level of seismic resistance are presented in the paper. All phases are therefore presented, starting from the rapid and then detailed inspection, and continuing with preparation of the structural condition assessment report, preparation of renovation design and, finally, ending with realisation of work with expert supervision. A special attention is paid to structural analysis that is conducted using a nonlinear static method based on displacements, the so called pushover analysis, which is considered to be one of the most appropriate methods for seismic analysis of existing masonry structures. All procedures conducted in the scope of this renovation were realised in accordance with legislation that entered into force after the earthquake.

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“…Local: FRP (fiber-reinforced polymers)-based systems [35][36][37], FRCM (fabric-reinforced cementitious matrix)-based systems [38,39], concrete shotcreting [40], reinforcing with steel members and connection retrofitting [41,42]; • Global: capacity increase (new bracing systems, new reinforced shear walls, different additions of shear walls), integrity enhancement (especially for masonry buildings), demand reduction (base isolation, seismic dampers, energy dissipation systems) [43].…”

Section: Introductionmentioning

confidence: 99%

Post-Earthquake Condition Assessment and Seismic Upgrading Strategies for a Heritage-Protected School in Petrinja, Croatia

Salaman¹,

Stepinac

Matorić³

et al. 2022

Buildings

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Following the Zagreb earthquake in March of 2020, a destructive 6.2 magnitude earthquake struck Croatia again in December of 2020. The Sisak-Moslavina county suffered the most severe consequences; many historical and cultural buildings were badly damaged. In the education sector, 109 buildings were damaged. One such building is the case study of this research. The heritage-protected building of the First Primary School in Petrinja is an unreinforced masonry structure, constructed using traditional materials and building techniques. The historical background of the building and the results of the post-earthquake assessment are presented. A numerical calculation of three strengthening methods was performed in 3Muri software: FRCM, FRP, and shotcrete. Non-linear pushover analysis was performed for each model. Finally, the strengthening methods are compared based on the achieved earthquake capacity, cost, and environmental impact.

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Application of steel in refurbishment of earthquake-prone buildings

Cited by 5 publications

References 10 publications

Post-Earthquake Damage Assessment—Case Study of the Educational Building after the Zagreb Earthquake

Post-Earthquake Damage Assessment—Case Study of the Educational Building after the Zagreb Earthquake

Structural renovation of residential building in Zagreb after the 22 March 2020 earthquake

Post-Earthquake Condition Assessment and Seismic Upgrading Strategies for a Heritage-Protected School in Petrinja, Croatia

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