Experimental and Analytical Seismic Assessment of Bents in Conventional Multi-Column Bridges

سال انتشار: 1395
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 534

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شناسه ملی سند علمی:

CCIVIL01_121

تاریخ نمایه سازی: 21 شهریور 1395

چکیده مقاله:

Recent earthquakes have shown that most bridges, which are usually designed using the latest version of seismic bridge codes, suffer different damages during the earthquake. Therefore, it can be expected that the designed concrete bridges based on the past design codes show inappropriate seismic performance under earthquake. Reinforced concrete bridges with non-integrated multi-column bents are one of the common types of the bridges in Iran. These bridges designed and built in accordance with old standard specifications have several defects in detailing which do not satisfy the provisions of the current seismic codes. So, it seems necessary to assess the seismic behavior of these common bridges. Experimental and analytical assessment of the behavior of bridge bents under seismic loading is the main goal of this study. To this end, a 25% scaled four-column bent is built which is consistent with the existing conventional bent represented bridges before 1990 in Iran. This specimen was tested under gravity and cyclic reversed loading for assessment the behavior of the bents. The results show that, unlike the specifications philosophy, the bent is damaged extensively out of plastic hinges region and capbeam joints controlled the seismic behavior of bent.

نویسندگان

Asad-Allah Abbasloo

MSc Graduate, School of Civil Engineering, University of Tehran

Mohammad Khanmohammadi

Associate Professor, School of Civil Engineering, University of Tehran

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  • Rehabilitation and Retrofit of Existing Buildings", American Society of Civil ...
  • Design Criteria", Version 1.7, April Seismicه [6] California Department of ...
  • Retrofit of Circular bridge columms for Enhanced Seismicه [7] Chai, ...
  • AASHTO. (2012). AASHTO LRFD bridge design specifications, Washington, DC. ...
  • AASHTO. (2009). Guide specifications for LRFD seismic bridge design, Washington, ...
  • ATC-24, 1992. "Guidelines for Cyclic Seismic Testing of Components of ...
  • Bahrani, M.K., , Vasseghi, A, Esmaeily, A., and Soltani, M. ...
  • Chen, G., Anderson, N., Luna, R., Stephenson, R.. EL-Engebawy, M., ...
  • Eberhard M. O., Marsh, L., (1997). "Lateral-Load Response of two ...
  • Ehsani, M.R., and Wight, J.K. (1990). "Confinemet Steel Requirements for ...
  • Federal Highway Administratio. (FHWA2006). :Seismic Retrofitting Manual for Highway Structures ...
  • FEMA 356 (2000). "Pre-Standard and Commentary for the Seismic Rehabilitation ...
  • Gergely, I., Pantelides, C.P., and Reaveley, L.D. (2000). "Shear strengthening ...
  • Gergely, I., Pantelides, C.P., Nuismer, R.J., and Reaveley, L.D. (1998). ...
  • Hazards Assessment and Mitigation: a Pilot Study in the New ...
  • نمایش کامل مراجع