Ercolino, M. ORCID: 0000-0001-8678-0631, Magliulo, G. and Manfredi, G. (2016) The lesson learnt after Emilia-Romagna earthquakes on precast RC structures: a case-study. In: ICONHIC 2016. ICONHIC, Chania, Greece.

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Abstract

During Emilia-Romagna earthquakes (Northern Italy) on May 2012 a huge number of existing precast RC one-story buildings was severely damaged. Most of these structures were reinforced concrete one-story buildings, hosting industrial and commercial activities. The presented paper aims at simulating the structural behavior of an existing precast RC building, damaged during the Emilia-Romagna earthquakes. The direct inspection showed that the most serious damage was related to the connection systems: relative displacements between the beams and the columns; significant dislocations between the roof elements and the beams and some cases of loss of support of the roof elements. Moreover, large rotations were also recorded at the base of the columns. The presented study defines a reliable modeling approach and the dynamic analyses demonstrate the capability of the proposed model in simulating the real response of the structure. The results confirm that the most of the damage was caused by the second seismic event and the numerical evidences agree with the real recorded damage. The numerical outcomes demonstrate the significant influence of the vertical action on the connections behavior/failure.

Item Type:	Conference Proceedings
Title of Proceedings:	ICONHIC 2016
Additional Information:	Presented at the "1st International Conference on Natural Hazards & Infrastructure", 28-30 June, 2016, Chania, Greece.
Uncontrolled Keywords:	Precast structures, Friction connection, Vertical earthquake, Dynamic analysis
Subjects:	T Technology > TH Building construction
Faculty / School / Research Centre / Research Group:	Faculty of Engineering & Science Faculty of Engineering & Science > School of Engineering (ENG)
Last Modified:	22 Oct 2020 16:07
URI:	http://gala.gre.ac.uk/id/eprint/15633

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