horizontal span
[/ˌhɒrɪˈzɒntəl spæn/]
nounpl: horizontal spans
vão horizontal
1. The distance or length measured horizontally between two points, supports, or structural elements
The bridge's horizontal span exceeds 500 meters.
O vão horizontal da ponte ultrapassa 500 metros.
2. In architecture and engineering, the unsupported distance of a beam, arch, or structural member extending horizontally
The architect calculated the maximum horizontal span for the roof beam.
O arquiteto calculou o vão horizontal máximo para a viga do telhado.
3. The width or lateral extent of a structure or object measured from side to side
The horizontal span of the building facade is 80 feet.
O vão horizontal da fachada do edifício é de 80 pés.
This is primarily a technical and architectural term used across English and Portuguese-speaking countries. In Brazil, it is commonly employed in construction blueprints, engineering specifications, and architectural discussions. The term reflects the importance of structural design in modern construction and is standardized in both ABNT (Brazilian standards) and European technical documentation.
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