Inverted king post trusses are made of steel bars and cables used to reduce bending, deformation, and a trusses’ height. In other words, they are a collection of continuous beams (steel or wood) and steel cables that are positioned under the beam, supported by an upright king post. Although slender, they are suited for large spans and have small sections.
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https://www.archdaily.com/905527/how-inverted-king-post-trusses-allow-for-large-elegant-open-spaces Matheus Pereira
https://www.archdaily.com/28912/grid-house-forte-gimenes-marcondes-ferraz-arquitetos Igor Fracalossi