Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/6750
Title: Dynamic assessment of shear connection conditions in slab-girder bridges by Kullback-Leibler distance
Authors: Zhu, XQ
Hao, H
Uy, B
Xia, Y 
Mirza, O
Keywords: Connection model
Damage detection
Vibration
Slab-girder bridges
Kullback-Leibler measure
Issue Date: May-2012
Publisher: Multi-Science
Source: Advances in structural engineering, May 2012, v. 15, no. 5, p. 771-780 How to cite?
Journal: Advances in structural engineering 
Abstract: Shear connectors are widely used in composite bridges that provide composite action. Their damage will reduce the load-carrying capacity of the structure. In this study, a novel method based on Kullback-Leibler distance (KLD) was developed to assess the integrity of the shear connectors. A bridge model was constructed in the laboratory and some removable anchors were specially designed and fabricated to link the beams and slab that were cast separately. Each anchor consists of a threaded bar that penetrates through the soffit of the beam and ties up into an embedded nut cap to simulate a shear connector in the real bridges. Different damage scenarios were introduced by pulling out some connectors. Vibration tests were carried out in each damage scenario. Various damage detection methods have been applied and results show that the method was able to detect all the assumed damage scenarios successfully and consistently.
URI: http://hdl.handle.net/10397/6750
ISSN: 1369-4332
EISSN: 2048-4011
DOI: 10.1260/1369-4332.15.5.771
Rights: © Multi-Science Publishing
Posted with permission of the publisher.
Appears in Collections:Journal/Magazine Article

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