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Full-scaled experiment on flexural behavior of pre-tensioned prestressed bulb T-beam

 Full-scaled experiment on flexural behavior of pre-tensioned prestressed bulb T-beam
Auteur(s): ,
Présenté pendant IABSE Congress: Resilient technologies for sustainable infrastructure, Christchurch, New Zealand, 3-5 February 2021, publié dans , pp. 172-179
DOI: 10.2749/christchurch.2021.0172
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In order to study the flexural behavior of bulb T-beam, a full-scaled specimen was test until failure. The prestress friction loss, load-displacement relationship, crack distribution and failure mo...
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Détails bibliographiques

Auteur(s): (Chang’an University, Xi’an, China)
(Chang’an University, Xi’an, China)
Médium: papier de conférence
Langue(s): anglais
Conférence: IABSE Congress: Resilient technologies for sustainable infrastructure, Christchurch, New Zealand, 3-5 February 2021
Publié dans:
Page(s): 172-179 Nombre total de pages (du PDF): 8
Page(s): 172-179
Nombre total de pages (du PDF): 8
DOI: 10.2749/christchurch.2021.0172
Abstrait:

In order to study the flexural behavior of bulb T-beam, a full-scaled specimen was test until failure. The prestress friction loss, load-displacement relationship, crack distribution and failure mode of the specimen were measured. It showed that obvious friction existed between plate-type bend device using 16Mn and steel strand and the frictional coefficient equals 0.25. The failure mode of the test beam conformed to the design criterion of balanced-reinforced beam. Additionally, the test results were compared to the results calculated by guidelines including JTJ 3362-2018, GB 50010- 2010, ACI 318m-14 and Eurocode 2. It showed that all the guidelines could accurately predict the cracking moment, but overestimate the ultimate flexural capacity. Eurocode 2 and JTG 3362-2018 could accurately determine the deformation and crack width, respectively.