Analysis of Masonry Infill Panels Retrofitted with FRP Sheets in R/C Frames

Subject Areas : Structural Engineering

Hosein  Parastesh ¹ (Associate Professor of Civil Engineering Department of Civil Engineering, University of Science and Culture, Tehran, Iran)
Murat  Saatcioglu ² (Professor, Dept. of Civil Engineering, University of Ottawa, Ottawa, Canada. E-mail: [e-mail])

Received: 2017-05-25 Accepted : 2017-07-16 Published : 2017-09-29

Keywords: Finite element model, Retrofit, nonlinear analysis, seismic loading, Reinforced Concrete, Masonry infill, FRP sheet,

Abstract :

Masonry infill walls are often used as non-structural elements. According to the past structural failure, ignorance of interaction between infill walls and enclosed frame may lead to the different seismic response for non-ductile building frames. The main contribution of this paper is to analytically investigate the behavior of reinforced concrete with masonry infill panels as participating structural. In doing so, a finite element model based on an equivalent strut method is conducted to represent the behavior of masonry panels. The strut model is calibrated using the results of the companion experimental program, which examined the cyclic behavior of infill panels with and without FRP sheets. Accordingly, a nonlinear spring element and a shell element are used to simulate the behavior of masonry strut elements and FRP sheets, respectively. The nonlinear static analysis (Push over analysis) is accomplished using SAP2000 [1] structural analysis software for a 10-story building with FRP sheets subjec

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