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Title |
Verification of Reinforcing Arrangement Error in Precast Concrete Shear Walls Using BIM and Presentation of Flexural Ductility Model
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DOI |
https://doi.org/10.11112/jksmi.2024.28.3.27 |
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Keywords |
BIM; 프리캐스트 콘크리트 전단벽; 제작오차; 휨 연성 BIM; Precast concrete shear wall; Manufacturing error; Flexural ductility |
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Abstract |
This study established a BIM procedure considering manufacturing errors in the production process, and evaluated the flexural ductility of precast all-lightweight aggregate concrete special shear walls (PLASWs) with spliced sleeve technique. In the production process, the concrete cover thickness of PALSW was on average 1.28 times greater than the cross-sectional details of the specimen modeled with Revit BIM program. In particular, the bending inner radius of the hoop and inner-cross tie were greater than the designed details. Consequently, the confinement effect of core concrete reduced from 64% to 54% due to the manufacturing errors in the transverse reinforcing bars, resulting in a decrease in the ductility of PALSW by approximately 4.91%. Considering these findings, the BIM of PLASW with spliced sleeve technique should compliment the bending inner radius of the transverse reinforcing bars, and the defined brittleness increase coefficient reflecting the decreased core concrete confining pressure in the stress-strain relationship of confined concrete should be evaluated as 1.8.
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