3D Modeling Using a Terrestial Laser Scanner On the Citarum Baru Dayeuhkolot Bridge
Rizal Fadilah (a), Thariq Abdul Jalil (a), Yackob Astor (a), Yulia Widyaningsih (a*)

a) Department of Civil Engineering, Bandung State of Polytechnic
Jalan Geger Kalong Hilir Ds Ciwaruga, Kec. Parongpong, Kab. Bandung Barat
*yulia.widyaningsih[at]polban.ac.id

Abstract

Bridge inventory data collection is essential due to the growing number of bridges- one type of data that must be gathered is building documentation, which may help develop conservation or reconstruction. Bridge documentation is required to examine the current state of the bridge. Utilizing a Terrestrial Laser Scanner (TLS) to identify the geometry of the bridge is a single approach to documenting a bridge. Additionally, as a bridge ages, its performance declines, and its requirement for repair, maintenance, and replacement increases, leading to the need to conduct excellent maintenance management by regularly inspecting the bridge. Until this day, there have always been obstacles with the bridge inspection procedure, such as difficult access, long periods, or the lack of inspection aids. As a result, using advanced, contemporary instruments to aid in bridge inspections is vital. Survey technology, such as three-dimensional (3D) laser scanning technology, is one tool that can be utilized for bridge inspection. It is predicted that damage analysis inaccessible through conventional examination will be made easier by applying TLS. The 3D point cloud model from data processing can be combined with the point clouds to create a solid model. Research on the New Citarum Dayeuhkolot Bridge, located on Dayeuhkolot Street No. 366 - 348, Dayeuhkolot District, Bandung Regency, West Java, was conducted as part of this study. Multiple steps are involved in producing a 3D model with TLS, including data collection, registration, filtering, and mesh point clouds process. The dimensions of the current bridge are precisely calculated using the output of the 3D model. Using dimensions from manual measurements, which had the maximum comparative difference value of 1.39%, the 3D TLS model^s outputs were dimensionally validated in the final modeling stage.

Keywords: Terrestial Laser Scanning (TLS)- Bridge Inspection- 3D Modeling

Topic: Artificial Intelligence (AI)