Issue 50

F. Jafari et alii, Frattura ed Integrità Strutturale, 50 (2019) 209-230; DOI: 10.3221/IGF-ESIS.50.18 209 Finite Element Analysis and ANFIS investigation of seismic behavior of sandwich panels with different concrete material in two story steel building Faezeh Jafari Department of Civil Engineering, Malayer University, Malayer 65719-95863, Iran faeze_jafari666@yahoo.com Baitollah Badarloo Department of Civil Engineering, Qom University of Technology (QUT), Qom 37181-46645, Iran A BSTRACT . This study aimed to apply sandwich panel in a two-story steel building to improve its behavior. Sandwich concrete panels consist of three basic components including wires, insulating layer and concrete cover. This research studied the behavior of sandwich panels by changing the Young's modulus of the concrete with Finite Element Method and evaluated the displacement, acceleration, and panel stresses. According to the results, increasing the Young's modulus of the concrete, the frame seismic behavior was improved. Using sandwich panels instead of conventional brick increased the building resistance against seismic load while decreasing the structure drift and acceleration. Increasing the Young's modulus of the shotcrete layer enhanced the behavior of the seismic panel. In addition, the results showed that the two-story building, which comprised of sandwich panels, had an appropriate performance against the seismic load. Ultimately, ANFIS was used to predict the response of the building under seismic loads. The effects of some variables such as Young's modulus of concrete, variations on the elevation and panel’s number on displacement and acceleration have been presented. K EYWORD . Sandwich Panel; Finite Element Method; Young's Modulus; Seismic Load; ANFIS. Citation: Jafari, F, Badarloo, B, Finite Element Analysis and ANFIS investigation of seismic behavior of sandwich panels with different concrete material in two story steel building, Frattura ed Integrità Strutturale, 50 (2019) 209-230. Received: 18.04.2019 Accepted: 12.08.2019 Published: 01.10.2019 Copyright: © 2019 This is an open access article under the terms of the CC-BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. I NTRODUCTION he system components were sandwich panels comprised of two welded steel meshes on the two sides and an insulating polystyrene layer in the middle, in which the two mesh layers were linked through diagonal wires constructing a spatial mesh. After installation in the execution place, these panels were sprayed with concrete on the sides and finally a united structure of reinforced concrete was produced. Therefore, the issue of spraying concrete T