Actuation concepts for adaptive high-rise structures subjected to static wind loading
•Adaptive high-rise structures enable structural material savings.•The primary control objective should be deformation control.•The actuation concept can be derived from the passive load-bearing behavior.•The derivation can be done using actuation influence matrices.•Certain structural topologies en...
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Veröffentlicht in: | Engineering structures 2022-09, Vol.267, p.114670, Article 114670 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | •Adaptive high-rise structures enable structural material savings.•The primary control objective should be deformation control.•The actuation concept can be derived from the passive load-bearing behavior.•The derivation can be done using actuation influence matrices.•Certain structural topologies enable a stress-free deformation control.
High-rise structures can efficiently provide living space in urban areas with high density population since they require a comparatively smaller footprint than low-rise structures. This aspect is important particularly considering world population growth and urbanization trends. However, the structural mass required for high-rise structures increases nonlinearly as the structure becomes taller and more slender to the extent that resource and emission efficiency decrease compared to low-rise structures. In the context of climate change and impending resource scarcity, new material and emission efficient building technologies must be developed. One such approach are adaptive load-bearing structures, i.e., structures that can adapt and optimize their load-bearing behaviour under changing loading conditions. This paper studies the adaptability of two idealised high-rise structures to static lateral loads by means of actuation influence matrices. The high-rise structures are assembled from basic bracing modules of a truss and frame. A reduction of deformations is proposed as primary control objective and two actuation concepts are derived from the passive load-bearing behaviour of the high-rises. The actuation concept for truss structures achieves a stress-free deformation control. |
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ISSN: | 0141-0296 1873-7323 |
DOI: | 10.1016/j.engstruct.2022.114670 |