GNGTS 2016 - Atti del 35° Convegno Nazionale

GNGTS 2016 S essione 2.3 443 in Fig. 2 comply with the standard prescriptions, and thus from the results an informed decision may be made a posteriori on favouring the cost or the ductility objective. Conclusions . In this paper, a GA optimization procedure has been proposed for the seismic retrofitting of RC building frames via FRP jackets. Through the proposed approach, it is possible to design the FRP jacket retrofitting taking into account their effect on the overall behaviour of the structure and obtaining effective and efficient solutions. The objectives were chosen as the minimization of the overall cost and maximization of structural ductility, requiring at the same time the satisfaction of code prescriptions about inter-story drift. The procedure was applied to a case study of a RC frame originally not complying with the provisions imposed by EC8. The obtained results highlighted that the considered optimization approach is able to detect the parameters to which the structural response is more sensitive. For the RC frame considered, strengthening the first floor internal columns resulted as the best compromise between ductility increase and minimum cost. References C. Chisari. 2015. Inverse techniques for model identification of masonry structures. University of Trieste: PhD Thesis. C. Chisari, C. Bedon. 2016. Multi-objective optimization of FRP jackets for improving seismic response of reinforced concrete frames. American Journal of Engineering and Applied Sciences, 9 (3): 669-679. M. D������� �� ������ �� ���������� �� �������� �� �������� ����� � ��������� ��������������� ����������� ����� ’Amato, F. Braga, R. Gigliotti, S. Kunnath, M. Laterza. 2012. A numerical general-purpose confinement model for non-linear analysis of R/C members. Computers and Structures, 102-103: 64-75. EN1998-1. 2004. Design of structures for earthquake resistance � ���� �� ������� ������ ������� ������� ��� ����� ��� – Part 1: General rules, seismic actions and rules for buildings. European Standard. J. Zhu, X. Wang, Z. Xu, C. Weng, C. 2011. Experimental study on seismic behaviour of RC frames strengthened with CFRP sheets. Composite Structures, 93(4): 1595������ –1603. Zou, X.K., J.G. Teng, L. De Lorenzis and S.H. Xia, 2007. Optimal performance-based design of FRP jackets for seismic retrofit of reinforced concrete frames. Composi. Part B: Eng., 38: 584-597. Use the data of seismic Risk perception to design educational activities of risk reduction M. Crescimbene, F. La Longa, R. Camassi, N.A. Pino Istituto Nazionale di Geofisica e Vulcanologia, Italy Introduction. In the modern society of risk (Beck, 1986), risk reduction education projects and awareness campaigns play a central and relevant role. The last twenty-five years have witnessed a flourishing of studies, research projects, educational experiments and actions to reduce natural risks. Just remember, for example, International Decade for Natural Disaster Reduction, which basic objective was to decrease the loss of life, property destruction and social and economic disruption caused by natural disasters, such as earthquakes, tsunamis, floods, landslides, volcanic eruptions, droughts, locust infestations, and other disasters of natural origin (https://www.unisdr.org/who-we-are/history) . Our principal experiences in risk reduction activities, gained in over fifteen years, concerned: - �������� �� ����������� ������� ��� ���� ��������� ��������� �� ������� ��� ��������� EDURISK, an educational project for risk reduction addressed to schools and teachers. Explicit objective of EDURISK is to promote risk awareness and the active role of citizens in its reduction; therefore, a goal of social change (AA.VV. , Pessina and Camassi eds, 2012);