Enquadramento de Viadutos em Concreto Segundo Parâmetros Estrutural, Funcional e de Durabilidade: Estudo de Caso para Campo Grande, MS.

Abstract

Some of the concrete viaducts built in the city of Campo Grande, MS, are over 40 years old. Over this period, these viaducts have been exposed to environmental conditions, heavy traffic, and extraordinary actions, which may contribute to a reduction in their safety and durability. Given this scenario, this study aimed to identify visible pathological manifestations in the city's four main viaducts, classify the most common anomalies and locations with the highest concentration of pathologies, verify the state of conservation, and classify these viaducts according to structural, functional, and durability parameters in accordance with the specifications of standards NBR 9452 (ABNT, 2023) and DNIT 010/2024-PRO. Visual inspections were carried out on the viaducts, where structural, functional, and durability anomalies were identified and mapped. These viaducts were assigned scores corresponding to their performance condition, ranging from 0 for emergency to 5 for excellent. Of the four viaducts, one received a score of 4 and the others a score of 3 in both methodologies adopted, and these indicate the existence of damage that could lead to some structural deficiencies, but there are still no signs of compromised stability. In addition, common pathological manifestations were identified, which are linked to problems related to complementary elements of the superstructure.