Performance of pristine and retrofitted hybrid steel/fibre reinforced polymer composite shear walls

Abstract

28In this study new types of advanced hybrid shear wall systems using steel/fibre reinforced 29 polymer (FRP) composites are being developed for deployment in the construction of 30 buildings. The hybrid steel/FRP shear walls made from laminates of steel with either carbon 31 FRP (CFRP) or glass FRP (GFRP) materials. In total six medium-scaled shear wall 32 specimens were manufactured. In the first phase of the study three pristine specimens: steel 33 shear wall (SSW-P), hybrid steel /CFRP shear wall (HSCSW-P) and hybrid steel/GFRP 34 shear wall (HSGSW-P) were tested. In the second phase of the project, the specimens 35 tested in phase one were retrofitted and retested; these specimens were identified as SSW-36 R, HSCSW-R and HSGSW-R. The structural repair and strengthening of specimens in the 37 second phase was achieved by replacing the damaged infill plates with new infill plates of the 38 same type, strengthening of the vertical steel frame elements with CFRP laminates and 39

Comparison of the behaviour of steel, pure FRP and hybrid shear walls under cyclic seismic loading in aspect of stiffness degradation and energy absorption

“…HSWs are innovative structural lateral load resisting system and have significant advantages in comparison with steel shear wall systems. These include increased in-plane stiffness and load carrying capacity of the system and more uniform distribution of the tension field resulting in reduction of out-of-plane deformations in the infill plate [14,7].…”

“…Structural elements with carbon FRP (CFRP) and glass FRP (GFRP) are becoming popular in thin walled structures, sandwich panels and shear walls due to the combination of benefits from different materials. Initial research about FRP repair and straightening of damaged SSW and hybrid SW indicates opportunities for fast and effective recovery of the capacity of the damaged shear walls of this type [7].…”

Experimental study on duplex assembled I-shaped steel panel dampers strengthened by CFRP sheets

“…As proposed by Teng et al (2007, 2012), the FRP composites can effectively enhance the seismic resistance of steel structures. Attempts on the steel shear plates were made by Petkune et al (2016, 2018), and the results indicated that the carbon fiber reinforced polymer (CFRP) could significantly improve the deformability and energy absorption of the plates with less loss in the stiffness.…”

Ballistic impact response of steel fiber-metal laminates

“…The response of steel based fiber-metal laminates under various loading conditions is very interesting since steel is a classical construction material and their applications can be numerous. Recently, scientific articles concerning fiber-metal laminates with steel metal layers have been published [1][2][3][4][5][6][7][8][9]. In these articles, various applications are considered: thick walled tubes subjected to axisymmetric internal pressure [9], shear walls for the construction of buildings [6], panels for underwater applications [5] and industrial applications [4].…”

“…Recently, scientific articles concerning fiber-metal laminates with steel metal layers have been published [1][2][3][4][5][6][7][8][9]. In these articles, various applications are considered: thick walled tubes subjected to axisymmetric internal pressure [9], shear walls for the construction of buildings [6], panels for underwater applications [5] and industrial applications [4]. The mechanical evaluation of steel based fiber-metal laminates includes their impact response, fatigue characteristics, creep behavior, hygrothermal conditioning, response to earthquake loading [1][2][3][4][5][6][7][8][9].…”