%0 Journal Article %T Static and Dynamic Behavior of High-strength Lightweight Reinforced Concrete One-way Ribbed Slabs %J International Journal of Engineering %I Materials and Energy Research Center %Z 1025-2495 %A Mohammed, T. A. %A Kadhim, H. M. %D 2022 %\ 04/01/2022 %V 35 %N 4 %P 732-739 %! Static and Dynamic Behavior of High-strength Lightweight Reinforced Concrete One-way Ribbed Slabs %K Steel Fiber %K Ribbed slab %K sugar molasses %K serviceability %K Harmonic loading %R 10.5829/ije.2022.35.04A.13 %X Nowadays, reducing the self-weight of structures and vibration problems is the primary goal for design requirements in most civil constructions. Two-point loading and harmonic loading tests were conducted to examine the strength and serviceability of high-strength reinforced concrete one-way ribbed slabs. Six slabs were cast and tested. The behavior of cracking, deflection, and vibration was investigated. The experimental results showed that using high strength-lightweight concrete (HSLWC) instead of high strength-normal weight concrete (HSNWC) in constructed one-way ribbed slab led to a decrease in the density by 19.31%, the strength by 17.70%, and ultimate deflection by 17.33%. Although the addition of steel fibers to HSLWC led to an increase in the density of concrete its addition enhances the load-deflection relationship and ultimate load for slab specimen which reduced the reduction in strength by 14.49%. Furthermore, ductility index, stiffness, and toughness index for ribbed slab specimens with steel fibers showed better behavior than those without steel fibers. The HSNWC gave a negative impact on the vibration of the one-way ribbed slab at both operation frequencies (25 and 50) Hz, while using HSLWC with and without steel fibers, led to reducing the vibration effect by (30.11and 30.68) % and (15.26 and 20.25) % at 25Hz and 50Hz, respectively. %U https://www.ije.ir/article_142634_0c1418e738281e384e9190187582e1c8.pdf