Civil Engineering

Permanent URI for this collectionhttp://197.211.34.35:4000/handle/123456789/148

Civil Engineering

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Subject: search.filters.subject.Bending

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    Reliability studies on reinforced concrete beam subjected to bending forces with natural stone as coarse aggregate
    (Springer, 2021-10-10) Daniel Ndakuta Kolo; James Isiwu Aguwa; Theophilus Yisa Tsado; Mohammed Abdullahi; YUSUF, Abdulazeez; Sikiru Folahan Oritola
    This paper presents the results of structural reliability analysis of a structural element (beam) in building using First-order reliability method (FORM) to ascertain the level of safety. The natural stone (NS) which is the by-product of Precambrian deposits of the Bida trough was used as coarse aggregate: unwashed and washed aggregates were used. A total of 80 concrete cubes of 150 mm × 150 mm × 150 mm were cast and used for this study, sensitivity analysis was conducted by varying the span, depth, effective depth, area of shear reinforcement and dead load of the beam in bending. The result of the sensitiv ity analysis revealed that the beam utilising unwashed and washed NS are both structurally safe at a span of 3000 mm with probabilities of failure of 9.20 × 10–5 and 2.06 × 10–8 and both safe at a depth of 600 mm with probabilities of failure of 4.19 × 10–4 and 2.602 × 10–4, respectively, in bending.
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    Structural Reliability Studies on Pulverized Glass Powder Concrete Subjected to Bending Forces with Natural Aggregate
    (Ethiopian International Journal of Engineering and Technology (EIJET), 2024-02-01) Kolo, D. N.; Aguwa, J. I.; Hadi, A. M.; Shehu, M.; Ashraf, M.L.M.
    The shortage of housing and basic infrastructure in Nigeria is increasing with a continuous rise in the price of construction materials. Cement is a major component in concrete production. Its production, however, is accompanied by huge carbon dioxide emissions. This research presents the results of structural reliability analysis conducted on reinforced concrete beam produced with pulverized glass powder as partial replacement for cement with Natural aggregate (NA) as coarse aggregate by subjecting it to bending forces. First order reliability method (FORM) was employed to determine the level of safety of the beam. The result of the sensitivity analysis showed that the pulverized glass powder beam with NA as coarse aggregate is structurally safe at a span of 3000 mm and depth of 600 mm with probabilities of failure of 1.00 × 10-3 and 1.04 × 10-3 respectively.