چکیده مقاله
The Texas Department of Transportation uses vehicular barriers at the edges of highway bridge decks A recent TxDOT research study, conducted at the University of Texas at Austin, was intended to develop designs for retrofit barriers, connected to bridge decks using post installed mechanical anchors, which could be used to replace highway barriers damaged by vehicular collisions In the research study described here, two retrofit barrier designs were developed: one an intermittent barrier with through anchors, and the other a continuous barrier with undercut anchors The undercut anchor design involved groups of inclinedanchors, whose capacity was governed by concrete breakout, and for which current design provisions were not directly applicable The barries were tested under quasi static and impact loading The current US anchor design provisions of ACI 318 05 Appendix D can safely be used to predict the capacity of such barriers
کلیدواژهها
نویسندگان
Farhang Farrokhi
Assistant Professor, Civil Engineering Department, University of Zanjan , Zanjan, Iran
مهدی شهیدی
Student, Civil Engineering Department, University of Zanjan , Zanjan, Iran
شیوه ارجاع
Farrokhi, Farhang and shahidi, mehdi,1391,PERFORMANCE OF RETROFIT HIGHWAY BARRIERS WITH MECHANICAL ANCHOR,9th International Congress on Civil Engineering,Isfahan
ارائهشده در
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