Structural Behavior of BubbleDeck Slab under Uniformly Distributed Load

In structural construction fields, reducing the overall self-weight of the structure is considered a primary objective and substantial challenge in the civil engineering field, particularly in earthquake-affected buildings and tall buildings. Different techniques were implemented to attain this goal; one of them is setting voids in a specific position through the structure, just like a voided slab or BubbleDeck slab. The main objective of this research is to study the structural behavior of BubbleDeck reinforced concrete slabs under the effect of static uniformly distributed load. The experimental program involved testing five fixed-end supported two-way solid and BubbleDeck slabs of dimensions ۲۵۰۰í—۲۵۰۰í—۲۰۰ mm. The considered parameters included the bubble's diameter ۱۰۰ and ۱۲۰ mm and the concrete volume reduction ۱۵ and ۱۸ %. The other parameters, which are concrete compressive strength and detail of the steel reinforcement, were identical for all the tested specimens to be for the compressive strength and (∅ ۱۰ @۱۶۴ mm) for the steel reinforcement. The outcomes indicated that the ultimate load capacity for a BubbleDeck slab decreased by ۱۵.۹۳ and ۱۱.۵ % compared to the solid slab in case of concrete volume reductions ۱۸ and ۱۵ %, respectively. On the other hand, an advanced behavior, including the ultimate deflection, the absorbed energy, and the ductility factor, was achieved; the increments in these parameters were ۳۹, ۵.۳, and ۱۴.۹۴ %, respectively. Doi: ۱۰.۲۸۹۹۱/cej-۲۰۲۱-۰۳۰۹۱۶۵۵ Full Text: PDFIn structural construction fields, reducing the overall self-weight of the structure is considered a primary objective and substantial challenge in the civil engineering field, particularly in earthquake-affected buildings and tall buildings. Different techniques were implemented to attain this goal; one of them is setting voids in a specific position through the structure, just like a voided slab or BubbleDeck slab. The main objective of this research is to study the structural behavior of BubbleDeck reinforced concrete slabs under the effect of static uniformly distributed load. The experimental program involved testing five fixed-end supported two-way solid and BubbleDeck slabs of dimensions ۲۵۰۰í—۲۵۰۰í—۲۰۰ mm. The considered parameters included the bubble's diameter ۱۰۰ and ۱۲۰ mm and the concrete volume reduction ۱۵ and ۱۸ %. The other parameters, which are concrete compressive strength and detail of the steel reinforcement, were identical for all the tested specimens to be for the compressive strength and (∅ ۱۰ @۱۶۴ mm) for the steel reinforcement. The outcomes indicated that the ultimate load capacity for a BubbleDeck slab decreased by ۱۵.۹۳ and ۱۱.۵ % compared to the solid slab in case of concrete volume reductions ۱۸ and ۱۵ %, respectively. On the other hand, an advanced behavior, including the ultimate deflection, the absorbed energy, and the ductility factor, was achieved; the increments in these parameters were ۳۹, ۵.۳, and ۱۴.۹۴ %, respectively. Doi: ۱۰.۲۸۹۹۱/cej-۲۰۲۱-۰۳۰۹۱۶۵۵ Full Text: PDF