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CumInCAD is a Cumulative Index about publications in Computer Aided Architectural Design
supported by the sibling associations ACADIA, CAADRIA, eCAADe, SIGraDi, ASCAAD and CAAD futures

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_id	sigradi2024_293
id	sigradi2024_293
authors	Medeiros de Souza, Ludmilla and Tavares da Silva, Felipe
year	2024
title	Automatic Generation of Reinforced Concrete Structures Formwork Using a Parametric Model
source	Herrera, Pablo C., Gómez, Paula, Estevez, Alberto T., Torreblanca-Díaz, David A. Biodigital Intelligent Systems - Proceedings of the XXVIII Conference of the Iberoamerican Society of Digital Graphics (SIGraDi 2024) - ISBN 978-9915-9635-2-5, iBAG-UIC Barcelona, Spain, 13-15 November 2024, pp. 1849–1858
summary	Although there are currently means to automate formwork design for reinforced concrete structures, it is common to use manual methods or just electronic spreadsheets. This work aims to demonstrate the implementation of a parametric and generative model for timber formwork. A parametric geometric model was developed for a three-dimensional structure of rigid reinforced concrete frames with beams, columns, and solid slabs, with automatic formwork sizing based on ABNT NBR 15696 (2009) and ABNT NBR 7190 (2022). As a result, a geometric model is generated, where the thicknesses are visualized instantly in the CAD system window and updated according to changes in the input data. The parametric model that generates the components of timber formwork can significantly help optimize the structure in the design process. After sizing, the proposed parametric algorithm can be used to find an optimized solution with a reduced formwork rate per built area (m2/m2).
keywords	Reinforced concrete formwork, Construction waste, Parametric modeling, Automatic design
series	SIGraDi
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last changed	2025/07/21 11:50

_id	acadia19_470
id	acadia19_470
authors	Meyboom, AnnaLisa; Correa, David; Krieg, Oliver David
year	2019
title	Stressed Skin Wood Surface Structure
doi	https://doi.org/10.52842/conf.acadia.2019.470
source	ACADIA 19:UBIQUITY AND AUTONOMY [Proceedings of the 39th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-0-578-59179-7] (The University of Texas at Austin School of Architecture, Austin, Texas 21-26 October, 2019) pp. 470-477
summary	Innovation in parametric design and robotic fabrication is in reciprocal relationship with the investigation of new structural types that facilitated by this technology. The stressed skin structure has historically been used to create lightweight curved structures, mainly in engineering applications such as naval vessels, aircraft, and space shuttles. Stressed skin structures were first referred to by Fairbairn in 1849. In England, the first use of the structure was in the Mosquito night bomber of World War II. In the United States, stressed skin structures were used at the same time, when the Wright Patterson Air Force Base designed and fabricated the Vultee BT-15 fuselage using fiberglass-reinforced polyester as the face material and both glass-fabric honeycomb and balsa wood core. With the renewed interest in wood as a structural building material, due to its sustainable characteristics, new potentials for the use of stressed skin structures made from wood on building scales are emerging. The authors present a material informed system that is characterized by its adaptability to freeform curvature on exterior surfaces. A stressed skin system can employ thinner materials that can be bent in their elastic bending range and then fixed into place, leading to the ability to be architecturally malleable, structurally highly efficient, as well as easily buildable. The interstitial space can also be used for services. Advanced digital fabrication and robotic manufacturing methods further enhance this capability by enabling precisely fabricated tolerances and embedded assembly instructions; these are essential to fabricate complex, multi-component forms. Through a prototypical installation, the authors demonstrate and discuss the technology of the stressed skin structure in wood considering current digital design and fabrication technologies.
series	ACADIA
type	normal paper
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last changed	2022/06/07 07:58

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