PSI - Issue 29

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Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2019) 000 – 000 vailable online at .sciencedirect.co i i t Structural Integrity Procedia 00 (2019) 000 – 000

www.elsevier.com/locate/procedia .elsevier.co /locate/procedia

ScienceDirect

Procedia Structural Integrity 29 (2020) 48–54

© 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of Marco Tanganelli and Stefania Viti Numerical case study of a monumental masonry church façade subjected to uniform settlement at the base was presented in this paper aiming at testing the numerical procedure. The results were discussed to evaluate the software capability and accuracy in the settlement-induced collapse mechanisms prediction. © 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of Marco Tanganelli and Stefania Viti Keywords: Masonry monumental structures, settlement vulnerability, rigid block limit analysis, collapse mechanism analysis, mathematica l programming. bstract asonry structures belonged to the ultural eritage suffered severe da ages in the last decays due to the action of the settle ent induced ground ove ents. The researchers have been developing nu erical tools for the vulnerability analysis and assessment of asonry structures subjected to settle ents. ontinuous, discrete and rigid block mod els ere proposed in literature. The analysis of both local or global failure modes due to settlement is a still debated topic, involving several questions relate d to the modelling techniques and to the investigation of the parameters which affect the masonry behaviour against foundation movements. In this fra e ork, the paper focuses on a nu erical approach for the settle ent analysis based on the rigid block li it analysis. The Italian ode ( T 2018) also suggests linear kine atic approach for the seis i c-induced collapse echanis s analysis. In such a for ulation, the structure is odelled as a collection of polyhedral rigid blocks assu ing frictional contact interfac es ith infinite co pressive strength and zero tensile strength and neglecting the orta r contribution. riginally for ulated for the in plane and out-of-plane echanis s analysis, the nu erical for ulation as recently i proved in order to analy ze blocky structures subjected to unifor settle ent. u erical case study of a onu ental asonry church façade subjected to unifor settle ent at the base as presented in this paper ai ing at testing the nu erical procedure. The results ere discussed to evaluate the soft are capability and accuracy in the settle ent-induced collapse mechanisms prediction. © 2020 The Authors. Published by Elsevier B.V. This is an open access article under the - - license (http://creativeco ons.org/licenses/by-nc-nd/4.0/) Peer-revie under responsibility of arco Tanganelli and Stefania iti Keywords: asonry onu ental structures, settle ent vulnerability, rigid block li it analysis, collapse echanis analysis, athe atica l progra ing. Art Collections 2020, Safety Issue (ARCO 2020, SAFETY) The prediction of collapse mechanisms for masonry structures affected by ground movements using Rigid Block Limit Analysis R. Gagliardo a , G. Terracciano a , L. Cascini a , F. Portioli a , R. Landolfo a* a Dept. of Structures for Engineering and Architecture, University of Naples “Federico II” via Forno Vecchio 36, 80134 Naples, Italy Abstract Masonry structures belonged to the Cultural Heritage suffered severe damages in the last decays due to the action of the settlement induced ground movements. The researchers have been developing numerical tools for the vulnerability analysis and assessment of masonry structures subjected to settlements. Continuous, discrete and rigid block mod els were proposed in literature. The analysis of both local or global failure modes due to settlement is a still debated topic, involving several questions relate d to the modelling techniques and to the investigation of the parameters which affect the masonry behaviour against foundation movements. In this framework, the paper focuses on a numerical approach for the settlement analysis based on the rigid block limit analysis. The Italian Code (NTC 2018) also suggests linear kinematic approach for the seismi c-induced collapse mechanisms analysis. In such a formulation, the structure is modelled as a collection of polyhedral rigid blocks assuming frictional contact interfac es with infinite compressive strength and zero tensile strength and neglecting the morta r contribution. Originally formulated for the in plane and out-of-plane mechanisms analysis, the numerical formulation was recently improved in order to analy ze blocky structures subjected to uniform settlement. , afet Iss e ( , ) r i ti f ll i f r r tr t r affected by ground movements using Rigid Block Limit Analysis . li r a , . rr i a , . s i i a , . rti li a , . lf a* a ept. of Structures for Engineering and Architecture, niversity of Naples “Federico II” via Forno Vecchio 36, 80134 Naples, Italy rt llecti s

* Corresponding author. Tel.: +39-081-2538052 E-mail address: landolfo@unina.it * Corresponding author. Tel.: +39-081-2538052 E- ail address: landolfo unina.it

2452-3216 © 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of Marco Tanganelli and Stefania Viti 2452-3216 2020 The uthors. Published by Elsevier . . This is an open access article under the - -ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of arco Tanganelli and Stefania iti

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