Scipediacontent: Scipediacontent moved page Draft Content 751443795 to M.P. Ciocci 2021a

2021-11-30T11:52:31Z

Scipediacontent moved page Draft Content 751443795 to M.P. Ciocci 2021a

Scipediacontent: Created page with "== Abstract == The seismic behaviour of unreinforced masonry (URM) structures is generally governed by a complex interaction between the out-of-plane and i..."

2021-11-30T11:52:27Z

Created page with "== Abstract == The seismic behaviour of unreinforced masonry (URM) structures is generally governed by a complex interaction between the out-of-plane and i..."

New page

== Abstract ==

The seismic behaviour of unreinforced masonry (URM) structures is generally
governed by a complex interaction between the out-of-plane and in-plane responses of the
walls, depending on the in-plane stiffness of floor/roof diaphragms and the efficiency of wall-
to-floor/roof connections. The presence of timber diaphragms, which are typically characterised by low in-plane stiffness and poor connection to the masonry walls, adds challenges to the numerical modelling and analysis, as well as to the structural assessment of URM structures under seismic actions. This work aims at investigating the applicability of refined FE modelling using macro-modelling approach and mass-proportional pushover analysis for simulating the response of URM structures with flexible diaphragms, comparing the results with experimental data obtained from incremental dynamic testing.
A full-scale two-storey prototype building with timber diaphragms, which was tested in
shaking table at the European Centre for Training and Research in Earthquake Engineering
(EUCENTRE), in Italy, was considered to perform this study. A refined finite element (FE)
model was developed in DIANA software, considering the wall-to-diaphragm (WTD)
connections. While the strength values of masonry were adopted according to axial and
diagonal compression tests, the modulus of elasticity was calibrated after simulating in-plane
cyclic shear tests of masonry piers, which were part of the same experimental program at EUCENTRE. Recommendations from international guidelines were used to derive the assumed
material properties for diaphragms and wall-to-diaphragm connections. Mass-proportional
pushover analysis was performed and a comparison between numerical and experimental
results is presented to investigate the assumptions, advantages and limitations of the presented
numerical modelling and analysis approach.

== Full document ==
<pdf>Media:Draft_Content_751443795p1164.pdf</pdf>
== References ==

[1] Lourenço, P.B., Mendes, N., Ramos, L.F. and Oliveira, D.V. Analysis of masonry structures without box behavior. Int J Archit Herit (2011) 5:369-382. https://doi.org/10.1080/15583058.2010.528824.

[2] NTC 2018. Norme Tecniche per le Costruzioni. Decreto Ministeriale 17/1/2018 (2018).

[3] NZSEE 2017. The existing Assessment of Existing Buildings. Part C8: Unreinforced Masonry Buildings (2017).

[4] ASCE/SEI 41-13. Seismic Evaluation and Retrofit of Existing Buildings (2014).

[5] Brignola, A., Pampanin, S., Podestà, S. Evaluation and control of the in-plane stiffness of timber floors for the performance-based retrofit of URM buildings. Bull New Zeal Soc Earthq Eng (2009). https://doi.org/10.5459/bnzsee.42.3.204-221.

[6] Magenes, G., Penna, A., Senaldi, I., Galasco, A. Shaking Table Test of a Strengthened Full-Scale Stone Masonry Building with Flexible Diaphragms. Int J Archit Herit (2014) 8:349–375. https://doi.org/10.1080/15583058.2013.826299.

[7] Senaldi, I., Magenes, G., Penna, A., Galasco, A., Rota, M. The Effect of Stiffened Floor and Roof Diaphragms on the Experimental Seismic Response of a Full-Scale Unreinforced Stone Masonry Building. J Earthq Eng (2014) 18:407–43. https://doi.org/10.1080/13632469.2013.876946.

[8] Magenes, G., Penna, A., Galasco, A. A full-scale shaking table test on a two-storey stone masonry building. In: Proceedings of the 14th European Conference Earthquake Engineering (2010).

[9] Senaldi, I. The influence of floor and roof diaphragms on the seismic response of existing masonry buildings. PhD Thesis, School of Advanced Studies IUSS Pavia, Italy (2012).

[10] Magenes, G., Penna, A., Galasco, A., Da Paré, M. In-plane cyclic shear tests of undressed double-leaf stone masonry panels. In: Proceedings of the 8th International Masonry Conference (2010).

[11] DIANA FEA BV. Diana User’s Manual, Release 10.3. DIANA FEA BV 2019. https://doi.org/10.1080/15421400600788682.

[12] Magenes, G., Penna, A., Galasco, A., Rota, M. Experimental characterisation of stone masonry mechanical properties. In: Proceedings of the 8th International Masonry Conference (2010).

[13] EN 338:2016. Structural timber - Strength classes. European Committee for Standardization, Brussels, Belgium.

[14] Kouris, L.A.S., Penna, A., Magenes, G. Dynamic Modification and Damage Propagation of a Two-Storey Full-Scale Masonry Building. Adv. Civ. Eng (2019). https://doi.org/10.1155/2019/2396452.

[15] Schreppers, G.M., Garofalo, A., Messali, F., Rots, J. DIANA Validation report for Masonry modelling (2017).

[16] Vaculik, J.. Unreinforced masonry walls subjected to out-of-plane seismic actions. PhD Thesis, University of Adelaide, Australia (2012).

← Older revision	Revision as of 11:52, 30 November 2021
(No difference)

M.P. Ciocci 2021a - Revision history

Scipediacontent: Scipediacontent moved page Draft Content 751443795 to M.P. Ciocci 2021a

Scipediacontent: Created page with "== Abstract == The seismic behaviour of unreinforced masonry (URM) structures is generally governed by a complex interaction between the out-of-plane and i..."