Railway Bridge Geometry Assessment Supported by Cutting-Edge Reality Capture Technologies and 3D As-Designed Models

• Tipo: Artigo em Revista Científica Internacional
• Data: 2023

Autores

Cabral, R (Autor) Outra; Oliveira, R (Autor) Outra; Ribeiro, D (Autor) Outra; Rakoczy, AM (Autor) Outra; Santos, R (Autor) Outra; Azenha, M (Autor) Outra; Correia, J (Autor) FEUP

Revista

Título: Infrastructures

Vol. 6 Nº 6

Página Final: 114

Editora: MDPI

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 0 Citações

Outras Informações

ID Authenticus: P-00Y-VEK

DOI: 10.3390/infrastructures8070114

Abstract (EN): Documentation of structural visual inspections is necessary for its monitoring, maintenance, and decision about its rehabilitation, and structural strengthening. In recent times, close-range photogrammetry (CRP) based on unmanned aerial vehicles (UAVs) and terrestrial laser scanners (TLS) have greatly improved the survey phase. These technologies can be used independently or in combination to provide a 3D as-is image-based model of the railway bridge. In this study, TLS captured the side and bottom sections of the deck, while the CRP-based UAV captured the side and top sections of the deck, and the track. The combination of post-processing techniques enabled the merging of TLS and CRP models, resulting in the creation of an accurate 3D representation of the complete railway bridge deck. Additionally, a 3D as-designed model was developed based on the design plans of the bridge. The as-designed model is compared to the as-is model through a 3D digital registration. The comparison allows the detection of dimensional deviation and surface alignments. The results reveal slight deviations in the structural dimension with a global average value of 9 mm.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 18