Research on the mechanical behavior of GFRP reinforced glulam beam-column glued-in rod joints
In order to solve the problems of insufficient ductility and energy dissipation capac-ity of pure glulam joints with glued-in rods,a reinforced beam-column joint with glass fiber reinforced polymer(GFRP)was proposed to make the steel rods play an effective role and improve the mechanical performance of the joints.Abaqus software was used to analyze the influence of the bonding methods and the number of layers of fiber cloth on the mechanical properties of the reinforced joints.After establishing a reasonable bonding scheme,the fail-ure mode and hysteretic behavior of the reinforced and unreinforced glulam beam-column joints under low cyclic loading were compared and analyzed by means of experiment and nu-merical simulation.The results show that the GFRP have obvious strengthening effect on the joints,and the ductility and energy dissipation capacity of the joints are effectively im-proved.However,it is necessary to reasonably control the number of GFRP layers to avoid waste in the case of ensuring that the bearing capacity of the joint reaches the expected goal.
glulam structurebeam-column glued-in rods jointGFRP reinforcedquasi-static testfinite element analysis
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