Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/12348
Title: Self-stressed steel fiber reinforced concrete as negative moment connection for strengthening of multi-span simply-supported girder bridges
Authors: Wang, WW
Dai, JG 
Keywords: Moment connection
Multi-span
Self-stress
Serviceability
Simply-supported bridge girders
Steel fiber reinforced concrete
Issue Date: 2013
Publisher: Multi-Science
Source: Advances in structural engineering, 2013, v. 16, no. 6, p. 1113-1128 How to cite?
Journal: Advances in structural engineering 
Abstract: A self-stressed steel fiber reinforced concrete (SS-SFRC) moment connection is proposed to strengthen multi-span simply-supported T-section reinforced concrete (RC) girders. In the proposed moment connection technique, old concrete needs to be removed from adjacent girder ends and negative moment reinforcement is placed into cast-in-place SS-SFRC to develop continuity over the interior support. Two series of tests consisting of 15 girder specimens were conducted to investigate the reliability of the proposed SS-SFRC moment connection. An analytical model is presented to predict the load-carrying capacity of the resulting continuous composite girders. Test results show that SS-SFRC is excellent in preventing concrete cracking at the interior support. Both the load-carrying capacity and the serviceability of the strengthened girders are significantly improved. The analytical model is demonstrated to predict the load-carrying capacity of the resulting continuous composited girders with an acceptable degree of accuracy.
URI: http://hdl.handle.net/10397/12348
ISSN: 1369-4332
EISSN: 2048-4011
DOI: 10.1260/1369-4332.16.6.1113
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