Abstract
The flexural and shear behavior of three full-scale pretensioned high-strength concrete (HSC) bridge girders, which were designed to a modified bulb tee (BT) section according to AASHTO specifications, were investigated experimentally to evaluate the applicability of high-strength concrete and a higher percentage of debonding ratio to pretensioned bridge girders. The test results indicated that performance in terms of load-carrying capacities, ductility, and crack patterns was improved by using high-strength concrete compared to predictions of AASHTO specifications. In addition, the prestressed concrete (PSC) specimen, in which higher percentages of debonded strands were used, showed superior load-carrying capacities, stiffness, and ductility compared to the specimen in which the number of partially debonded strands did not exceed 25% of the total number of strands. A parametric study on the relationship between concrete strength, debonding ratio, and maximum girder length was conducted. Cracking angle analysis was carried out and compared with the AASHTO specifications and RESPONSE 2000 program.
| Original language | English |
|---|---|
| Pages (from-to) | 847-853 |
| Number of pages | 7 |
| Journal | Journal of Bridge Engineering |
| Volume | 16 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2011 Nov 1 |
Fingerprint
Keywords
- Expanded debonding ratio
- High-strength Concrete
- Prestressed concrete girder
- Pretensioned
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction
Cite this
Full-scale testing of pretensioned high-strength concrete girders with debonded strands. / Kim, Jae Ki; Shin, Hyun Oh; Shin, Hyun Yang; Yoon, Young Soo.
In: Journal of Bridge Engineering, Vol. 16, No. 6, 01.11.2011, p. 847-853.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Full-scale testing of pretensioned high-strength concrete girders with debonded strands
AU - Kim, Jae Ki
AU - Shin, Hyun Oh
AU - Shin, Hyun Yang
AU - Yoon, Young Soo
PY - 2011/11/1
Y1 - 2011/11/1
N2 - The flexural and shear behavior of three full-scale pretensioned high-strength concrete (HSC) bridge girders, which were designed to a modified bulb tee (BT) section according to AASHTO specifications, were investigated experimentally to evaluate the applicability of high-strength concrete and a higher percentage of debonding ratio to pretensioned bridge girders. The test results indicated that performance in terms of load-carrying capacities, ductility, and crack patterns was improved by using high-strength concrete compared to predictions of AASHTO specifications. In addition, the prestressed concrete (PSC) specimen, in which higher percentages of debonded strands were used, showed superior load-carrying capacities, stiffness, and ductility compared to the specimen in which the number of partially debonded strands did not exceed 25% of the total number of strands. A parametric study on the relationship between concrete strength, debonding ratio, and maximum girder length was conducted. Cracking angle analysis was carried out and compared with the AASHTO specifications and RESPONSE 2000 program.
AB - The flexural and shear behavior of three full-scale pretensioned high-strength concrete (HSC) bridge girders, which were designed to a modified bulb tee (BT) section according to AASHTO specifications, were investigated experimentally to evaluate the applicability of high-strength concrete and a higher percentage of debonding ratio to pretensioned bridge girders. The test results indicated that performance in terms of load-carrying capacities, ductility, and crack patterns was improved by using high-strength concrete compared to predictions of AASHTO specifications. In addition, the prestressed concrete (PSC) specimen, in which higher percentages of debonded strands were used, showed superior load-carrying capacities, stiffness, and ductility compared to the specimen in which the number of partially debonded strands did not exceed 25% of the total number of strands. A parametric study on the relationship between concrete strength, debonding ratio, and maximum girder length was conducted. Cracking angle analysis was carried out and compared with the AASHTO specifications and RESPONSE 2000 program.
KW - Expanded debonding ratio
KW - High-strength Concrete
KW - Prestressed concrete girder
KW - Pretensioned
UR - http://www.scopus.com/inward/record.url?scp=83755183587&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=83755183587&partnerID=8YFLogxK
U2 - 10.1061/(ASCE)BE.1943-5592.0000251
DO - 10.1061/(ASCE)BE.1943-5592.0000251
M3 - Article
AN - SCOPUS:83755183587
VL - 16
SP - 847
EP - 853
JO - Journal of Bridge Engineering
JF - Journal of Bridge Engineering
SN - 1084-0702
IS - 6
ER -