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Maximum Midspan Acceleration of Steel Fiber-Reinforced Concrete Beams Under Impact Loading
https://orcid.org/http://orcid.org/0000-0001-9331-0910
Vehicle collisions and terrorist attacks often subject buildings and infrastructures to severe impact loading scenarios, posing significant threats to their structural integrity. Steel fibers have emerged as an effective reinforcement solution for such structures, offering a notable enhancement in post-cracking tensile capacity for cement-based materials. This study aims to explore the impact loading response of steel fiber-reinforced concrete (SFRC) beams, specifically focusing on the maximum midspan acceleration. Drop Weight Impact tests were conducted utilizing two accelerometers positioned at the midspan of the specimens to record acceleration history. The experimental investigation evaluates the effects of varying masses and heights of the impactor, as well as span lengths, on the maximum midspan acceleration. Results reveal a notable increase in maximum midspan acceleration with higher impactor heights and masses, as well as longer span lengths. Conversely, a decrease in maximum midspan acceleration is observed with a higher modulus of elasticity of SFRC.
Maximum Midspan Acceleration of Steel Fiber-Reinforced Concrete Beams Under Impact Loading
https://orcid.org/http://orcid.org/0000-0001-9331-0910
Vehicle collisions and terrorist attacks often subject buildings and infrastructures to severe impact loading scenarios, posing significant threats to their structural integrity. Steel fibers have emerged as an effective reinforcement solution for such structures, offering a notable enhancement in post-cracking tensile capacity for cement-based materials. This study aims to explore the impact loading response of steel fiber-reinforced concrete (SFRC) beams, specifically focusing on the maximum midspan acceleration. Drop Weight Impact tests were conducted utilizing two accelerometers positioned at the midspan of the specimens to record acceleration history. The experimental investigation evaluates the effects of varying masses and heights of the impactor, as well as span lengths, on the maximum midspan acceleration. Results reveal a notable increase in maximum midspan acceleration with higher impactor heights and masses, as well as longer span lengths. Conversely, a decrease in maximum midspan acceleration is observed with a higher modulus of elasticity of SFRC.
Maximum Midspan Acceleration of Steel Fiber-Reinforced Concrete Beams Under Impact Loading
https://orcid.org/http://orcid.org/0000-0001-9331-0910
Vehicle collisions and terrorist attacks often subject buildings and infrastructures to severe impact loading scenarios, posing significant threats to their structural integrity. Steel fibers have emerged as an effective reinforcement solution for such structures, offering a notable enhancement in post-cracking tensile capacity for cement-based materials. This study aims to explore the impact loading response of steel fiber-reinforced concrete (SFRC) beams, specifically focusing on the maximum midspan acceleration. Drop Weight Impact tests were conducted utilizing two accelerometers positioned at the midspan of the specimens to record acceleration history. The experimental investigation evaluates the effects of varying masses and heights of the impactor, as well as span lengths, on the maximum midspan acceleration. Results reveal a notable increase in maximum midspan acceleration with higher impactor heights and masses, as well as longer span lengths. Conversely, a decrease in maximum midspan acceleration is observed with a higher modulus of elasticity of SFRC.
Maximum Midspan Acceleration of Steel Fiber-Reinforced Concrete Beams Under Impact Loading
Lecture Notes in Civil Engineering
Barros, Joaquim A. O. (Herausgeber:in) / Cunha, Vítor M. C. F. (Herausgeber:in) / Sousa, Hélder S. (Herausgeber:in) / Matos, José C. (Herausgeber:in) / Sena-Cruz, José M. (Herausgeber:in) / Bakhshi, Mohammad (Autor:in) / Valente, Isabel B. (Autor:in) / Ramezansefat, Honeyeh (Autor:in) / Barros, Joaquim António Oliveira (Autor:in)
FIB International Conference on Concrete Sustainability ; 2024 ; Guimarães, Portugal
4th fib International Conference on Concrete Sustainability (ICCS2024) ; Kapitel: 61 ; 506-514
29.12.2024
9 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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