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Buckling of the longitudinal rebar is one of the main forms of plastic hinge failure in reinforced concrete (RC) columns after an earthquake. This rebar buckling significantly impacts the seismic bearing capacity and energy dissipation capacity. To restrain the development of longitudinal rebar buckling behavior and delay the degradation of lateral strength in RC columns, this paper developed a new...
The temperature data of a post-tensioned continuous concrete box-girder bridge have been monitored for five years. Based on the measured data, the temperature in the different positions of the concrete box girder was systemically analyzed to extract the effective temperature. A method for predicting the extremum value of the effective temperature of concrete box-girder was proposed by use of the extrema...
Many bridge inspection results shows that serious concrete spalling has occurred in the field-cast bridge deck after the bridge was put into use for couples of years. Some of them even perforated and influence the normal operation of the bridge. Some bridge decks continue to deteriorate after repairment. The paper does some research on damage mechanism and evaluation for field-cast bridge decks.
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