Overview on the prestress loss evaluation in concrete beams
Journal
Bridge Maintenance, Safety, Management, Life-Cycle Sustainability and Innovations - Proceedings of the 10th International Conference on Bridge Maintenaince, Safety and Management, IABMAS 2020
Pages
117-122
Date Issued
2021
Author(s)
Abstract
In the last few decades, prestressing techniques have been used to build very important structures, infrastructures, and bridges. Since the serviceability and the safety of prestressed concrete members rely on the effective state of prestressing, development of tools and dynamic procedures capable of estimating the effective prestress loss have been widely carried on. Amongst other techniques, static identification using second-order deflections has proved to be an accurate and reliable method to evaluate prestress loss. This paper represents an overview of some important research works on prestress loss evaluation in concrete beams presented in the literature. The attention is focused mainly on static procedures, and a comparison with dynamic procedures is elaborated. Comments and recommendations will be made at proper places, while concluding remarks including future research directions will be presented at the end of the paper. ? 2021 Taylor & Francis Group, London
Subjects
Bridges
Concrete beams and girders
Life cycle
Prestressed beams and girders
Prestressing
Concrete beam
Concrete members
Effective prestress
Future research directions
Prestress loss
Reliable methods
Second orders
Static identifications
Prestressed concrete
SDGs
Type
conference paper