Proof Load Test on Bridges and Viaducts: A Bibliography Analysis

Abstract

This article aims at the study of proof load tests on bridges and viaducts, presenting the definitions and methods related to this test, in addition to describing the first load tests ever performed in Brazil. It evaluates the procedures of the Brazilian standards (NBR 9607:2013), comparing with the international regulations. The following topics present the importance and the way in which the load test is carried out, showing the risks of this test. Finally, this article explains the relevance of instrumentation and describes the most commonly used equipment: extensometer, inductive displacement transducer, deflectometer, clinometer, topography instruments, single-cell cell for measuring stationary forces and hydrostatic leveling system with pressure cell.

Rebuilding Bailey Bridge to Bridge With Bascule Span – A Case Study

“…The proof load test on bridges is one of the key issues before the bridge is operational in use (Chahud et al, 2018;Faber et al, 2000;Filar et al, 2017;Innocenzi et al, 2022). The static proof load test of the bridge included: measurements of vertical displacements -deflections of the span bridge structure, measurements of deformation/stress increments in the chords of lattice girders, and measurements of settlement of supports.…”