Scipediacontent: Scipediacontent moved page Draft Content 664391870 to Ivorra et al 2021a

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Scipediacontent moved page Draft Content 664391870 to Ivorra et al 2021a

Scipediacontent: Created page with "== Abstract == This paper shows the experimental and numerical analysis developed on a brick masonry wall of 3x2.5x0.2 m to understand the changes on its dynamic behaviour w..."

2021-11-30T13:21:47Z

Created page with "== Abstract == This paper shows the experimental and numerical analysis developed on a brick masonry wall of 3x2.5x0.2 m to understand the changes on its dynamic behaviour w..."

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== Abstract ==

This paper shows the experimental and numerical analysis developed on a brick
masonry wall of 3x2.5x0.2 m to understand the changes on its dynamic behaviour with different
stiffness situations: (i) original, (ii) loaded with different load levels, (iii) damaged by
horizontal in plane loads, (iv) retrofitted with Textile Reinforced Mortars (TRM) and (v)
retrofitted and damaged by horizontal in plane loads. This analysis has been developed at the
Civil Engineering Lab at the University of Alicante. On this masonry wall a matrix of 8
seismic accelerometers have been installed to evaluate, in plane and out of plane, changes
in the main frequencies, modal damping ratios and modal shapes. By the use of Operational
Modal Analysis techniques the results shows that the changes on the stiffness have
important influence on the main frequencies and in the modal damping ratios. Very low
influence have been detected on the modal shapes due to the low level of external vibrations
generated during the tests. Due to the low level of vibrations inside the lab,the classical application of ambient vibrations for OMA has been not possible and an external white noise force has been introduced on the top the wall by the use of a shaker to generate a general level
of vibrations on the specimen.

== Full document ==
<pdf>Media:Draft_Content_664391870p1149.pdf</pdf>
== References ==

[1] Magenes, G., Calvi, G.M. In-plane seismic response of brick masonry walls, Earthq. Eng. Struct. Dyn. 26 (1996) 1091–1112.

[2] Bhattacharya, S., Nayak, S., Dutta, S.C. A critical review of retrofitting methods for unreinforced masonry structures, Int. J. Disaster Risk Reduct. 7 (2014) 51–67. doi:10.1016/j.ijdrr.2013.12.004.

[3] Triantafillou, T.C., Strengthening of masonry structures using epoxy-bonded FRP laminates, J. Compos. Constr. 2 (1998) 96–104. doi:10.1061/(ASCE)1090- 0268(1998)2:2(96).

[4] Bilotta, A., Ceroni, F., Lignola, G.P., Prota, A., Use of DIC technique for investigating the behavior of FRCM materials for strengthening masonry elements, Compos. Part B Eng. 129 (2017) 251–270. doi:10.1016/j.compositesb.2017.05.075.

[5] Bru, D., Baeza, F. J., Varona, B., Garcia-Barba, J., Ivorra, S., Static and dynamic properties of retrofitted timber beams using glass fiber reinforced polymers, Materials and Structures 49(1-2) 181-191. doi: 10.1617/s11527-014-0487-0.

[6] Kouris L.A.S., Triantafillou T.C. (2018). State-of-the-art on strengthening of masonry structures with textile reinforced mortar (TRM). Construction and Building Materials 188:1221-1233. doi: 10.1016/j.conbuildmat.2018.08.039.Idelsohn, S.R. and Oñate, E. Finite element and finite volumes. Two good friends. Int. J. Num. Meth. Engng (1994) 37:3323-3341.

[7] Salvador Ivorra, David Bru, Javier Baeza, Benjamín Torres, Dora Foti. Numerical model of TRM reinforced masonry walls under lateral in plane loads. 12th International Conference on Earthquake Resistant Engineering Structures ERES 2019. 5th June 2019, Seville, Spain.

[8] Juan I. Gisbert, David Bru, Antonio González, Salvador Ivorra. Masonry Micromodels Using high order 3D elements CINPAR 2018. XIV International Conference on Building Pathology and Constructions Repair. Florencia (Italy), 2018.

[9] David Bru, Salvador Ivorra, Manuel Buitrago, Elisa Bertolesi, OMA identification on a scaled masonry building pre and post reinforced with TRM. 8th International Operational Modal Analysis Conference. Copenhagen May 2019.

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Scipediacontent: Scipediacontent moved page Draft Content 664391870 to Ivorra et al 2021a

Scipediacontent: Created page with "== Abstract == This paper shows the experimental and numerical analysis developed on a brick masonry wall of 3x2.5x0.2 m to understand the changes on its dynamic behaviour w..."