Abstract
This paper describes the in-plane shear behavior of insulated concrete sandwich wall panels (CSWP) reinforced with corrugated glass fiber-reinforced polymer (GFRP) shear connector. The study included testing 8 insulated CSWP specimens with different types of insulation and corrugated shear connector. All specimens were loaded in direct shear. The test variables were embedment depth of shear connector and removal of adhesive stress between insulation and concrete. Test results indicated that the reinforcement of corrugated GFRP shear connector significantly increased in-plane shear strength. And dispersion reinforcement will be more effective in the case of expanded polystyrene (EPS) insulation. Meanwhile, reinforcement at a degree close to 45° will be more effective in the case of extruded polystyrene with surface treatment (XPSS) insulation. Increase of embedment depth of shear connectors was able to restrain pull-out phenomenon of shear connectors. And removal of adhesive force of insulation tended to decrease in-plane shear strength.
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