Experimental Study of Interior Glass Fiber-Reinforced Polymer-Reinforced Concrete Slab-Column Connections under Lateral Cyclic Load

Interpretable Machine Learning Models for Punching Shear Strength Estimation of FRP Reinforced Concrete Slabs

“…To ensure the accuracy of predicted results, a database with adequate samples is required for model training. In this paper, 121 groups of experimental results [6][7][8][9][10]12,[31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49] of FRP reinforced concrete slabs under punching shear tests were collected, and made it into a database. In the data set, 80% of the data was used as a training set (10% of this was used as validation set), and remaining 20% were used as test set.…”

Post-Earthquake Fire Punching Shear Behavior of GFRP-Reinforced Slab-Column Connections

“…Tis characteristics appeal for its use as an alternative construction material [2]. In contrary, GFRP rebars have lower elastic stifness, resulting in a lower punching shear capacity of GFRP-RC slab-column connections as compared to corresponding steel rebar counter parts with the same steel reinforcement ratio [2], and despite this, GFRP rebars have been shown to resist seismic loads in slab-column connections [3].…”

“…Recent studies [4][5][6] investigated the punching shear behavior of interior FRP-RC slab-column connections with various forms of FRP shear reinforcement under monotonic load. Similarly, few researchers [3,[7][8][9] studied the efectiveness and contribution of GFRP stirrups as shear reinforcement in two-way slabs under lateral cyclic load. Teir fndings revealed that the use of GFRP stirrups resulted in a more fexible punching shear failure mechanism.…”

“…Numerous studies [1][2][3][4][5][6][7][8][9] investigated the punching shear behavior of GFRP-reinforcedslab-column connections at ambient temperatures, and there is perceived void in the article on post-earthquake fre punching shear behavior of GFRP-reinforcedslab-column connections. Secondary fre loading followed by an earthquake action poses a major threat to structural integrity of a member and needs in detail study as a structural member's singular response for only fre, and only earthquake is diferent as compared to combined post-earthquake fre scenario [10].…”

“…Te present research work flls in perceived void in the article by studying post-earthquake fre punching shear behavior of GFRP-reinforcedslab-column connections. Two experimental data reported in recent articles [3,11] were used for validation and verifcation of developed 3D FE models using the ANSYS nonlinear fnite element software program. Further, parametric studies were performed on infuential variables such as post-earthquake fre exposure duration, concrete grade, slab thickness, fre exposed surface, and column aspect ratio to get insight into the punching shear behavior of GFRP-reinforcedslab-column connections subjected to post-earthquake fre loading.…”