Horizontal cladding panels: in-plane seismic performance in precast concrete buildings

Belleri, Andrea; Torquati, Mauro; Marini, Alessandra; Riva, Paolo

doi:10.1007/s10518-015-9861-8

Cited by 62 publications

(48 citation statements)

References 22 publications

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“…The problem of cladding‐structure seismic interaction in precast buildings has been discussed in Refs. . Significant research efforts have been also devoted to clarify the role of the roof diaphragm action in the seismic response of precast systems .…”

Section: Introductionmentioning

confidence: 99%

Seismic performance of precast concrete structures with energy dissipating cladding panel connection systems

Lago

Biondini

Toniolo

2018

Structural Concrete

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The cladding‐structure interaction of precast concrete frame systems under seismic action has not been properly addressed in the past, as shown by several failures occurred under recent earthquakes in Southern Europe, which point out the need of a revision of the current design practice and technology. Dissipative systems of connections are proposed to this purpose within a general framework for seismic design of precast structures with cladding panels. The proposed connection systems consist of friction‐based or plasticity‐based devices interposed in between adjacent cladding panels or between the panels and the resisting frame to control the level of transferred forces and limit the displacements of the structure. Monotonic and cyclic experimental tests are carried out on both single connection devices and structural sub‐assemblies of two panels. Furthermore, cyclic and pseudo‐dynamic tests on a full‐scale prototype of precast structure with cladding panels are performed. The influence on the structural response of silicone sealant is also investigated through experimental testing. The effectiveness of the tested dissipative connections of the cladding panels in enhancing the seismic performance of precast structures is demonstrated by means of nonlinear dynamic analyses considering the influence of the roof diaphragm action. Design guidelines are finally provided for both single connectors and panel structural assemblies based on equilibrium and capacity design criteria.

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Section: Introductionmentioning

confidence: 99%

Seismic performance of precast concrete structures with energy dissipating cladding panel connection systems

Lago

Biondini

Toniolo

2018

Structural Concrete

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“…Precast cladding panels are mainly reinforced with steel welded wire mesh, installed on the outside of the building and connected to the main structural elements. The in‐plane interaction between cladding and structural systems is categorized as completely separated cladding , accidentally participating cladding , controlled participating cladding , and fully participating cladding . In regions of high seismicity (NIST GCR 95‐681), connections enabling relative movements between the elements are commonly adopted, ie, completely separated cladding according to Arnold…”

Section: Introductionmentioning

confidence: 99%

“…Displacement compatibility associated with the interaction of the supporting structure was neglected. The relative displacements and rotations between the cladding panels and the supporting structure needed to be accommodated by the connecting system, owing to the lower stiffness of the connection devices compared to the connected RC precast elements: The cladding panel failure assessed after the Emilia earthquake was clearly related to the failure of the mechanical connections, such as anchor channels and C‐shape or L‐shape steel profiles …”

Section: Introductionmentioning

confidence: 99%

“…In recent years, experimental work has been conducted to investigate the performance of cladding‐to‐structure subassemblies, and design recommendations have been derived accordingly, mainly concerning the in‐plane behaviour of such systems. In the case of out‐of‐plane loading, the seismic demand on cladding elements and connections is determined following building code formulae for nonstructural elements (clause 4.3.5 in EN 1998‐1 and clause 13.3 in ASCE 7).…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of out‐of‐plane seismic performance of column‐to‐column precast concrete cladding panels in one‐storey industrial buildings

Belleri

Cornali

Passoni

et al. 2017

Earthq Engng Struct Dyn

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Summary Recent earthquakes in Italy (L'Aquila 2009 and Emilia 2012) highlighted the vulnerability of precast cladding panels, typically associated with a connection system not designed to account for displacement and rotation compatibility between the panels and the supporting structure. Experimental investigations were performed in the past to investigate the in‐plane performance of cladding panels and design recommendations have been made accordingly; however, in the case of out‐of‐plane seismic loads, the load demand is commonly evaluated in the design practice by means of formulations for nonstructural components. This paper summarizes the results obtained from parametric analyses conducted to estimate the out‐of‐plane load demand in column‐to‐column cladding panels typical of one‐storey commercial and industrial buildings. Empirical equations suitable for both new and existing panels are proposed and compared with the design equations given in Eurocode 8 and ASCE 7. The paper also considers the effects of the development of plastic hinges at the column base and of the roof flexibility on the load demand in panel‐to‐column connections. The roof flexibility may generate the torsion of the panels; consequently, an analytical procedure to account for such effects is proposed. Finally, general design recommendations are made.

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“…The cladding system generally consists of external precast panels (Biondini et al, 2013;Magliulo et al, 2015;Belleri et al, 2016) or by masonry infills. The former type is considered herein.…”

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confidence: 99%

The Influence of Overhead Cranes in the Seismic Performance of Industrial Buildings

Belleri

Labò

Marini

et al. 2017

Front. Built Environ.

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This paper investigates the influence of overhead cranes with a hanging mass under earthquake type loading, considering the Emilia 2012 seismic sequence. The structural layout of precast concrete industrial buildings typical of the Italian territory is considered. The equations of motion describing the behavior of the hoist load are derived, and a sensitivity analysis is carried out on simplified 3 degrees of freedom systems by solving the governing differential equations. The influence of various parameters on the roof displacement and on the horizontal load transferred by the hanging mass is addressed. The considered parameters are the relative damping of the hanging mass, the length of the hoist ropes, the earthquake record, the hysteretic type of the plastic hinges at the column base, and the behavior factor of the structural system. The results show that for a horizontal component of the considered seismic sequence the structural displacements are amplified in the case of a behavior factor greater than 2.5. A simplified modeling strategy considering small displacements is also investigated. Such model is suitable for response-spectrum analyses. Finally, a three-dimensional case study is analyzed by means of non-linear time history analyses. The results show the influence of the overhead crane on the local performance of some structural and non-structural elements, such as columns and cladding panels, especially when the assumption of rigid roof diaphragm does not apply.

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Horizontal cladding panels: in-plane seismic performance in precast concrete buildings

Cited by 62 publications

References 22 publications

Seismic performance of precast concrete structures with energy dissipating cladding panel connection systems

Seismic performance of precast concrete structures with energy dissipating cladding panel connection systems

Evaluation of out‐of‐plane seismic performance of column‐to‐column precast concrete cladding panels in one‐storey industrial buildings

The Influence of Overhead Cranes in the Seismic Performance of Industrial Buildings

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