dc.contributor.author |
Singh, Shamsher Bahadur |
|
dc.date.accessioned |
2021-12-07T05:27:24Z |
|
dc.date.available |
2021-12-07T05:27:24Z |
|
dc.date.issued |
2004-02 |
|
dc.identifier.uri |
https://www.pci.org/PCI/Publications/PCI_Journal/Issues/2004/January-February/Flexural_Response_of_CFRP_Prestressed_Concrete_Box_Beams_for_Highway_Bridges.aspx |
|
dc.identifier.uri |
http://dspace.bits-pilani.ac.in:8080/xmlui/handle/123456789/3887 |
|
dc.description.abstract |
This paper presents an experimental and analytical investigation of the flexural response of box beams reinforced and prestressed using carbon fiber reinforced polymer (CFRP) tendons. Two one-third scale box beams were prestressed using seven bonded pretensioning tendons and six unbonded post-tensioning tendons. A third beam was prestressed with seven bonded pretensioning tendons and six non-prestressed unbonded posttensioning tendons. Beams were reinforced with carbon fiber composite cable stirrups and tested to failure. A computer program was developed to predict deflection, strain, and post-tensioning forces at various loads. A parametric analysis examined the effects of the level of pretensioning and post-tensioning forces on the overall flexural response. Results showed that the beam prestressed using both pretensioning and unbonded post-tensioning tendons had a 26 percent higher ultimate load capacity and 36 percent lower energy ratio than the beam with non-prestressed unbonded post-tensioning tendons. Levels of initial pretensioning and posttensioning forces significantly affect the flexural response and beam failure mode. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Precast/Prestressed Concrete Institute |
en_US |
dc.subject |
Civil Engineering |
en_US |
dc.subject |
CFRP |
en_US |
dc.subject |
Prestressed Concrete Box |
en_US |
dc.subject |
Highway Bridges |
en_US |
dc.title |
Flexural Response of CFRP Prestressed Highway Bridge Box-Beams |
en_US |
dc.type |
Article |
en_US |