Open AccessVisual Inspection and Determining Bridge Load Rating over the Torrential Rimac River in Lima, Peru
Author(s) -
C Blas,
Francisco Amarillo Fernández,
Erasmo Carrera
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1054/1/012012
Subject(s) - bridge (graph theory) , pier , load factor , culvert , prestressed concrete , civil engineering , bridge scour , service (business) , engineering , forensic engineering , structural engineering , computer science , business , medicine , marketing
Nowadays, the appropriate functioning of road infrastructure is a major concern that governments face. One of the structures most vulnerable to failure are bridges. In Peru, the hydrodynamics of torrential rivers, attributable to its geography, generates the collapse in the bridges by scour. Likewise, the increase in service overloads, compared to design loads (HS20), united with the fact that many bridges have more than 50 years in service, is another common factor that contributes to the bridge failures and should be considered in the evaluation of bridges. Therefore, this research aims to inspect, evaluate the load capacity in the superstructure of the Dueñas bridge using the LRFR methodology and propose improvements in the maintenance process. This bridge is made of prestressed concrete built in the 60’s and over the torrential Rimac river in Lima, Peru. The findings, according to the field visit, indicate the main problems are scour in the intermediate pier and damage in the concrete in the structural elements. Additionally, the rating factor (RF) calculated in the beams do not exceed to unit which implies that they only need structural reinforcement. Finally, improvements were proposed for the prevention of failure in the beams and scour in the substructure.