Full-scaled experiment on flexural behavior of pre-tensioned prestressed bulb T-beam
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Bibliographic Details
| Author(s): |
Bowen Feng
(Chang’an University, Xi’an, China)
Yongjian Liu (Chang’an University, Xi’an, China) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Resilient technologies for sustainable infrastructure, Christchurch, New Zealand, 3-5 February 2021 | ||||
| Published in: | IABSE Congress Christchurch 2020 | ||||
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| Page(s): | 172-179 | ||||
| Total no. of pages: | 8 | ||||
| DOI: | 10.2749/christchurch.2021.0172 | ||||
| Abstract: |
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. |
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| Keywords: |
flexural behavior bulb T-beam Full-scaled test Friction loss Specification comparison
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