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Effect of the Axial Load Ratio on the Lateral Load Performance of GFRP-Reinforced Squat Walls
Squat walls with a ratio of height-to-length of less than two are important structural components in many commercial buildings and safety-related nuclear structures. Given their low aspect ratio, squat walls have shorter fundamental periods (of order of 0.20–0.50 s.) than high-rise ones. Therefore, for any ground shaking of a given duration, they would have a higher potential damage. Recently, the seismic design of structures has been evolved towards a performance-based approach, where the need for robust structural systems with higher damage tolerance and reduced permanent deformations is paramount. The previous research on mid-rise and squat shear walls reinforced with glass fiber-reinforced polymer (GFRP) bars has demonstrated their ability to achieve a high lateral drift ratio with no strength degradation and minimal residual deformations. The current study examines the effect of the axial load ratio on the lateral load response of two GFRP-reinforced squat walls with an aspect ratio of 1.14. The test results indicated that the axial load has a significant effect on the cracking pattern, failure mode, and lateral load-displacement hysteretic response of the GFRP-reinforced squat walls.
Effect of the Axial Load Ratio on the Lateral Load Performance of GFRP-Reinforced Squat Walls
Squat walls with a ratio of height-to-length of less than two are important structural components in many commercial buildings and safety-related nuclear structures. Given their low aspect ratio, squat walls have shorter fundamental periods (of order of 0.20–0.50 s.) than high-rise ones. Therefore, for any ground shaking of a given duration, they would have a higher potential damage. Recently, the seismic design of structures has been evolved towards a performance-based approach, where the need for robust structural systems with higher damage tolerance and reduced permanent deformations is paramount. The previous research on mid-rise and squat shear walls reinforced with glass fiber-reinforced polymer (GFRP) bars has demonstrated their ability to achieve a high lateral drift ratio with no strength degradation and minimal residual deformations. The current study examines the effect of the axial load ratio on the lateral load response of two GFRP-reinforced squat walls with an aspect ratio of 1.14. The test results indicated that the axial load has a significant effect on the cracking pattern, failure mode, and lateral load-displacement hysteretic response of the GFRP-reinforced squat walls.
Effect of the Axial Load Ratio on the Lateral Load Performance of GFRP-Reinforced Squat Walls
Lecture Notes in Civil Engineering
Benmokrane, Brahim (editor) / Mohamed, Khaled (editor) / Farghaly, Ahmed (editor) / Mohamed, Hamdy (editor) / Shabana, Islam (author) / Farghaly, Ahmed (author) / Benmokrane, Brahim (author)
8th International Conference on Advanced Composite Materials in Bridges and Structures ; Chapter: 19 ; 163-170
2022-09-27
8 pages
Article/Chapter (Book)
Electronic Resource
English
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