Influence of modelling assumptions in the expected loss evaluation of a precast industrial building

Cornali, Fabrizio; Belleri, Andrea; Marini, Alessandra; Riva, Paolo

doi:10.1016/j.proeng.2017.09.499

Cited by 7 publications

(5 citation statements)

References 13 publications

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“…The use of RC precast systems in Portugal is mostly applied in the construction of industrial facilities and observed an important grow especially during the 70's decade of the last century (Chastre and Lúcio 2012). Until then, the precast industry in was mainly focused on the construction of elements for slabs and cladding panels.…”

Section: Rc Precast Building In Portugalmentioning

confidence: 99%

“…The displacement capacity of the beam-to-column connections was defined as the relative displacement between the top of the columns and the adjacent beams. Limits of 3 cm and 8 cm for the damage limitation and collapse prevention, respectively, were assumed, as suggested by Cornali et al (2017). Since the column and connection limit states act in series, the attainment of a structural limit state is dictated by the one that occurs first.…”

Section: Definition Of Limit Statesmentioning

confidence: 99%

“…Regarding the non-structural components, the performance was evaluated through the control of the relative deformation between the top and bottom connections of the cladding panels, as suggested by Cornali et al (2017). Despite the absence of cladding panels in the numerical models, the damage in the panels was simulated through the measurement of the lateral deformation of the columns.…”

Section: Definition Of Limit Statesmentioning

confidence: 99%

See 2 more Smart Citations

Seismic fragility functions for Portuguese RC precast buildings

Sousa

Batalha

Silva

et al. 2020

Bull Earthquake Eng

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Fragility functions are fundamental for the assessment of seismic safety of structures or the loss assessment of a portfolio of assets. The present paper describes a procedure to derive fragility functions representative of Portuguese reinforced concrete precast buildings. This goal was achieved following an analytical methodology considering the result of hundreds of nonlinear static analyses, whose building models reflect both mechanical and geometrical characteristics of the Portuguese industrial building stock. Considering the specificities of this typology, and in particular the connections between the structural members, a recently developed macro-element was employed, which enables the explicit simulation of friction and dowel mechanisms. The fragility analyses considered both structural and nonstructural limit states, and the findings indicate a poor seismic performance, even under low seismic demand.

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Section: Rc Precast Building In Portugalmentioning

confidence: 99%

Section: Definition Of Limit Statesmentioning

confidence: 99%

Section: Definition Of Limit Statesmentioning

confidence: 99%

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Seismic fragility functions for Portuguese RC precast buildings

Sousa

Batalha

Silva

et al. 2020

Bull Earthquake Eng

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“…For example, in the Emilia earthquake of 20 and 29 May 2012, more than half of the existing precast structures exhibited significant damage. [8][9][10] Even in moderate and short duration earthquake events, PRC structures exhibit high levels of structural damages, as described in Ref. [ 11] after field observations of the 2011 Lorca earthquake.…”

Section: Introductionmentioning

confidence: 92%

Influence of Beam-to-Column Connections in the Seismic Performance of Precast Concrete Industrial Facilities

Rodrigues

Vitorino

Batalha

et al. 2021

Structural Engineering International

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Past earthquakes have brought attention to the poor performance of precast reinforced concrete structures, especially relating to beam-to-column connections. The evaluation of different methodologies for the analysis of beam-to-column connections in industrial buildings is important. In the present work numerical analyses developed allowed the study of the effect that different story heights and connection properties have on frequencies, drifts, seismic coefficients and connection sliding. The results showed that the friction between concrete elements and the consideration of neoprene have a small impact on the drift demands in the columns and the seismic coefficients of the structures analyzed; on the other hand, the effect of steel dowel on the drift demands and seismic coefficients is significant. The comparison of models with different properties and connections allowed a better understanding of the parameters that affect the seismic behavior of precast reinforced concrete buildings the most and provide indications for building more accurate and efficient numerical models.

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“…Yet, the same conclusions cannot be drawn regarding the performance of the cladding panels. Based on the limit state thresholds proposed by Cornali et al [34], namely 1 cm and 4 cm of relative deformation between panel connections, for damage limitation and collapse prevention, it was observed that some damage is expected in the pushover analysis with a modal distribution when the cladding panels are not included in the model. This observation highlights the importance to include the cladding panels in the models to attain a more reliable seismic assessment.…”

Section: Nonlinear Static Analysismentioning

confidence: 99%

Assessment of the Seismic Behavior of a Precast Reinforced Concrete Industrial Building with the Presence of Horizontal Cladding Panels

et al. 2021

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The latest earthquakes in Europe exposed some critical problems in the connections of cladding panels in industrial precast reinforced concrete (PRC) structures. These connections did not perform as desired, causing the panels to fall, leading to significant nonstructural damage that resulted in the loss of human life and significant socio-economic impacts due to the interruption of business. Furthermore, in addition to the behavior of the cladding system itself, it is still not clear to what extent it can influence the overall seismic performance of the main structure. Making use of a simplified macroelement, the present study assesses the seismic performance of commonly employed cladding-to-structure connections, as well as the interaction of cladding panels with industrial PRC buildings. The analyses were carried out considering a PRC building representative of a Portuguese industrial park, studied with and without cladding panels. The seismic behavior of the structure was assessed considering both nonlinear static and dynamic procedures.

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Influence of modelling assumptions in the expected loss evaluation of a precast industrial building

Cited by 7 publications

References 13 publications

Seismic fragility functions for Portuguese RC precast buildings

Seismic fragility functions for Portuguese RC precast buildings

Influence of Beam-to-Column Connections in the Seismic Performance of Precast Concrete Industrial Facilities

Assessment of the Seismic Behavior of a Precast Reinforced Concrete Industrial Building with the Presence of Horizontal Cladding Panels

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