The role of friction in the seismic risk mitigation of freestanding art objects

Monaco, Michela; Guadagnuolo, Mariateresa; Gesualdo, Antonio

doi:10.1007/s11069-014-1076-9

Cited by 41 publications

(28 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…More specifically, it appears to be a serious candidate to analyse the buckling and post-buckling response of periodic beams infinitely long such as the railway track under thermal load (Pucillo (2016)) or to analyse the dynamic isolation of fragile goods in tall buildings (i.e. art objects, see Monaco et al (2014); Gesualdo et al (2014Gesualdo et al ( , 2017a. Its range of validity is bounded by the hypothesis of linear elasticity.…”

Section: Resultsmentioning

confidence: 99%

A direct technique for the homogenization of periodic beam-like structures by transfer matrix eigen-analysis

Gesualdo

Iannuzzo

Penta

2018

Lat. Am. j. solids struct.

Self Cite

View full text Add to dashboard Cite

To homogenize lattice beam-like structures, a direct approach based on the matrix eigen-and principal vectors of the state transfer matrix is proposed and discussed. The Timoshenko couple-stress beam is the equivalent continuum medium adopted in the homogenization process. The girders unit cell transmits two kinds of bending moments: the first is generated by the couple of the axial forces acting on the section nodes, the other one is due to the moments directly applied at the node sections by the adjacent cells. This latter moment is modelled as the resultant of couple-stress. The main advantage of the method consists in to operate directly on the sub-partitions of the unit cell stiffness matrix. Closed form solutions for the transmission principal vectors of the Pratt and X-braced girders are also attained and employed to calculate the stiffnesses of the related equivalent beams. Unit cells having more complex geometries are analysed numerically. As a result, the principal vector problem is always reduced to the inversion of a well-conditioned (3 3)  matrix employing the direct approach. Hence, no ill-conditioning problems, affecting all the known transfer methods, are present in the proposed method. Finally, comparing the predictions of the homogenized models with the finite element (f.e.) results of a series of girder, a validation of the homogenization method is performed.

show abstract

Section: Resultsmentioning

confidence: 99%

A direct technique for the homogenization of periodic beam-like structures by transfer matrix eigen-analysis

Gesualdo

Iannuzzo

Penta

2018

Lat. Am. j. solids struct.

Self Cite

View full text Add to dashboard Cite

show abstract

“…A dynamic test through the shaking table has been planned in order to check the effects of the friction coefficient on the dynamic response of the checked systems (samples over standing planes). Previous experimental campaigns [14] pointed out interesting relationships between the friction coefficient and the type of dynamic response (rest, sliding and rocking), as much as the fundamental frequency of the system, and the amplification in the acceleration.…”

Section: Dynamic Testmentioning

confidence: 99%

Dynamic Analysis of Artifacts: Experimental Tests for the Validation of Numerical Models

Tanganelli¹,

Coli²,

Cimellaro³

et al. 2019

Proceedings of the 7th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

View full text Add to dashboard Cite

The protection of art goods is an important issue of the seismic engineering. Artifacts are often made by fragile and ancient material, and they can easily present irregular shapes and high slenderness. In these years many contributions have been devoted to their analysis, based on numerical models having different complexity and computational effort. The Finite Element Models represent the most common and versatile approach for the representation of artifacts. Nevertheless, their reliability depends on the numerical assumptions made for the analysis, which requires a wide number of information regarding the dynamic behavior of the artifacts, such as the friction between the analyzed object and its support, the effective damping, the inelastic involvement of material, etc. In this work an experimental campaign has been started aimed at determining the main factors which affect the dynamic representation of artifacts through FEM analysis and simplified models. A large number of experimental tests, both static and dynamic, have been performed, by adopting both real and reduced scale objects.

show abstract

“…The main numerical approaches for the seismic analysis of marble sculptures consist of the rigid block and the Finite Element Method (FEM) procedures. The rigid block analysis has been introduced in the 60s [17], andthanks to its simplicity -is widely used even nowadays [18][19][20][21][22], even though it can provide information regarding only the motion of the system. The adoption of FEM to artifacts is a recent achievement [23][24][25] allowed by the digital scanner 3D technology and by the increased computational effectiveness of computing devices.…”

Section: The Numerical Analysesmentioning

confidence: 99%

Resimus: A Research Project on the Seismic Vulnerability of Museums’ Collections

Viti¹,

Tanganelli²

2019

Proceedings of the 7th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

View full text Add to dashboard Cite

The art goods represent a priceless asset of the cultural and artistic identity of communities. Nevertheless, the seismic performance of museums' content is only rarely checked, despite the several losses occurred in the last earthquakes (Emilia Region 2012, Aquila 2009, Central Italy 2016). As a consequence, risk mitigation and management have been paying an increasing attention to artistic and cultural goods. Such artifacts, despite presenting an intrinsic vulnerability-due to their irregular shape, slenderness, fragility-rarely are adequately protected from earthquakes. The research project "RESIMUS" has developed in this scenario, and it focuses on the seismic vulnerability of the collections exposed in the Museum of Bargello in Florence. A special attention is paid to the role played by the staging on the seismic performance of the artifacts. The Museum of Bargello represents a privileged case-study, both for the importance and the value of its collections and for their staging variety. The staging adopted in the Museum, indeed, presents different types, materials, ages and dynamic properties, representing a special example of site-specific outfitting. The research project has involved different scientists and disciplines, providing results which concern the laserscanner survey of the objects, their classification according to the main mechanisms of collapse, the site-specific seismic input and the finite element modeling of some case-studies.

show abstract

The role of friction in the seismic risk mitigation of freestanding art objects

Cited by 41 publications

References 24 publications

A direct technique for the homogenization of periodic beam-like structures by transfer matrix eigen-analysis

A direct technique for the homogenization of periodic beam-like structures by transfer matrix eigen-analysis

Dynamic Analysis of Artifacts: Experimental Tests for the Validation of Numerical Models

Resimus: A Research Project on the Seismic Vulnerability of Museums’ Collections

Contact Info

Product

Resources

About