Performance of reinforced concrete-filled steel tubular (RCFST) members subjected to transverse impact loading

As an optimization that starts from a randomly selected structure generally does not guarantee reasonable optimality, the use of a systemic approach, named the ground structure, is widely accepted in steel-made truss and frame structural design. However, in the case of reinforced concrete (RC) structural optimization, because of the orthogonal orientation of structural members, randomly chosen or architect-sketched framing is used. Such a one-time fixed layout trend, in addition to its lack of a systemic approach, does not necessarily guarantee optimality. In this study, an approach for generating a candidate ground structure to be used for cost or weight minimization of 3D RC building structures with included slabs is developed. A multiobjective function at the floor optimization stage and a single objective function at the frame optimization stage are considered. A particle swarm optimization (PSO) method is employed for selecting the optimal ground structure. This method enables generating a simple, yet potential, real-world representation of topologically preoptimized ground structure while both structural and main architectural requirements are considered. This is supported by a case study for different floor domain sizes.

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Topologically preoptimized ground structure (TPOGS) for the optimization of 3D RC buildings

Alemu

Habte

Lahmer

et al. 2023

Asian J Civ Eng

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Influence of curing system on static and dynamic mechanical properties of fly ash concrete

Chen

et al. 2023

Construction and Building Materials

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Loading performance of reinforced and recycled aggregate concrete-filled circular steel tube short column with different steel ratios

Xiamuxi,

Aosimanjiang,

Yang

2023

Construction and Building Materials

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Performance of reinforced concrete-filled steel tubular (RCFST) members subjected to transverse impact loading

Cited by 23 publications

References 46 publications

Topologically preoptimized ground structure (TPOGS) for the optimization of 3D RC buildings

Topologically preoptimized ground structure (TPOGS) for the optimization of 3D RC buildings

Influence of curing system on static and dynamic mechanical properties of fly ash concrete

Loading performance of reinforced and recycled aggregate concrete-filled circular steel tube short column with different steel ratios

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