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MCEER Bulletin, Volume 21, Number 2, Summer 2007

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Volume 21, Number 2, Summer 2007

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MCEER-NCREE Collaborative Research on Accelerated Bridge Construction

precast segmental post-tensioned concrete bridge column

Precast segmental post-tensioned concrete bridge column prior to testing

On October 17, 2006, as part of collaborative research between MCEER and Taiwan’s National Center for Research on Earthquake Engineering (NCREE), a large-scale precast segmental post-tensioned concrete bridge column was tested at NCREE to examine its seismic performance. The specimen consisted of a foundation, four precast column segments with hollow cross sections and a precast cap beam with a total height of 5.7 m (18.7 ft). In the following four months, six more specimens were assembled and tested.

This collaborative research is part of the Accelerated Bridge Construction (ABC) project funded by the Federal Highway Administration (FHWA) to MCEER on the U.S. side and Taiwan’s National Science Foundation (NSF) to NCREE on the Taiwan side. It aims at developing precast segmental post-tensioned concrete bridge columns for use in seismic regions to accelerate bridge construction and minimize traffic disruption. The initial phase of the research involved testing of the critical segment joint of the columns. The second phase of the research included testing of seven large-scale precast segmental columns with cyclic and pseudo-dynamic loading.

Drs Chang and Lee in the lab

Kuo-Chun Chang (left) and George C. Lee (right) in front of the specimen

The research was led by George C. Lee (University at Buffalo) on the U.S. side and Kuo-Chun Chang (National Taiwan University) on the Taiwan side. Other key participants included post-doctoral research associate Yu-Chen Ou (University at Buffalo), assistant researcher Ping-Hsiung Wang and graduate student Mu-Sen Tsai (National Taiwan University).

Kuo-Chun Chang is Professor and Chairman of the Department of Civil Engineering of the National Taiwan University. He is also in charge of Bridge Research at the NCREE. He received his M.S. and Ph.D. degrees from the University
at Buffalo.