Prestressed concrete bridge tested to failure: the Alveo Vecchio viaduct case study

Author:

Tonelli D.ORCID,Rossi F.,Brighenti F.,Verzobio A.,Bonelli A.,Zonta D.

Abstract

AbstractThe number of bridges approaching or exceeding their initial design life has been increasing dramatically. Meanwhile, bridges are withstanding an ever-increasing traffic volume, both in number and weight of vehicles. Analytical and numerical models can predict bridges’ response to traffic loads and their ultimate capacity with low uncertainties; however, such uncertainties increase as bridges age due to deterioration mechanisms. Non-destructive tests of material specimens and full-scale load tests allow for updating structural models and predicting bridges’ responses with higher accuracy. On-site load tests with different load levels provide different information on the bridge behaviour (e.g., elastic response, first-crack load, and ultimate capacity), which impact the model updating differently. This paper compares the observed response of the Alveo Vecchio viaduct, a prestressed concrete (PC) bridge subjected to a controlled load test up to its failure, with its predicted response provided by four structural models. The observed response is measured by an extensive structural health monitoring system, while the structural models are developed with different levels of refinement and uncertainty in the input parameters. This study gives an insight into the ultimate load-carrying capacity of existing PC bridges and their behaviour during a whole load test to failure. The results show that the load-carry capacity of the Alveo Vecchio viaduct is almost four times higher than the design load; likely, many other Italian highway bridges with similar structural characteristics have a similar capacity.

Funder

Ministero dell’Istruzione, dell’Università e della Ricerca

Fondazione Cassa Di Risparmio Di Trento E Rovereto

Consorzio ReLUIS

Autostrade per l’Italia SpA

Università degli Studi di Trento

Publisher

Springer Science and Business Media LLC

Subject

Safety, Risk, Reliability and Quality,Civil and Structural Engineering

Reference45 articles.

1. ASCE American Society of Civil Engineers (2021) Report card for America’s infrastructure, 2021. [Online]. https://infrastructurereportcard.org/. Accessed 2021

2. Ministry of Land, Infrastructure, Transport and Tourism of Japan (2019) White paper on land, infrastructure, transport, and tourism in Japan in 2019. [Online]. https://www.mlit.go.jp/en/statistics/white-paper-mlit-2019.html. Accessed 2021

3. Ministry of Land, Infrastructure, Transport and Tourism of Japan (2020) Summary of white paper on land, infrastructure, transport, and tourism in Japan in 2020. [Online]. https://www.mlit.go.jp/en/statistics/white-paper-mlit-index.html. Consultato il giorno 2021

4. AASHTO LRFD bridge design specifications, 8th edition (2017) Washington, D.C.: American Association of State Highway and Transportation Officials

5. European Committee for Standardization (2005) EN 1992-2 Eurocode 2—design of concrete structures—concrete bridges—design and detailing rules. CEN, Brussels

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3