Experimental and Numerical Validation of a Sustainable and Innovative Construction System
Guido Bregoli1, Paolo Riva2
1 University of Bergamo, Department of Engineering and Applied Sciences
guido.bregoli@unibg.it
2 University of Bergamo, Department of Engineering and Applied Sciences
paolo.riva@unibg.it
Abstract. An innovative construction methodology, which aims at realizing sustainable residential buildings, is proposed and numerically evaluated. In the devised system the seismic-resistant structural elements are small R.C. walls widely spread on the perimeter of the building and all vertical structures (columns and R.C. bearing walls) and secondary elements (infill panels) are made by using shotcrete. Three pseudo-static cyclic tests have been carried out on real scale 2D wall panels to investigate the structural behavior in terms of interaction between primary and secondary elements when subjected to a horizontal external force. In this paper the comparison between numerical and experimental results is presented. Every test has been described with a two-dimensional model using plane stress elements. Monotonic static non linear analysis, performed with “TNO DIANA” FEM code, have been conducted to reproduce the experimental response, taking into account only the material nonlinearities by means of a smeared crack approach, while the geometric ones have been neglected.
Keywords: non-linear FEM analysis, seismic response, shear-walls hysteretic behavior, shotcrete, sustainability.
