Conference Proceedings

* denotes student advisee.

C148. Bozorgmehr Nia*, S., and Shafei, B. (2024) Mechanical performance of 3D-printed concrete made with various fiber alternatives, American Concrete Institute (ACI) Spring Convention, March 24-28, New Orleans, LA [Abstract].

C147. Pepera*, R., Bozorgmehr Nia*, S., and Shafei, B. (2024) Moving toward sustainable
ultra-high performance concrete, American Concrete Institute (ACI) Spring Convention, March 24-28, New Orleans, LA [Abstract].

C146. Vakili*, A. and Shafei, B. (2024) Ultra-high performance concrete for repair and restoration of bridge structures: Materials and structural insights, American Concrete Institute (ACI) Spring Convention, March 24-28, New Orleans, LA [Abstract].

C145. Azad*, S. and Shafei, B. (2024) Short- and long-term performance of concrete bridge decks reinforced with steel and glass fiber-reinforced polymer rebars, American Concrete Institute (ACI) Spring Convention, March 24-28, New Orleans, LA [Abstract].

C144. Nawaz*, S.R., Qureshi*, M.H., Vakili*, A., Kioumarsi, M., and Shafei, B. (2024) Lateral load performance of ultra-high performance concrete shear walls, American Concrete Institute (ACI) Spring Convention, March 24-28, New Orleans, LA [Abstract].

C143. Zewelde*, Y.G., Odeh*, I., Kioumarsi, M., and Shafei, B. (2024) Automated damage detection models to improve the condition assessment and inspection of bridge substructures, American Concrete Institute (ACI) Spring Convention, March 24-28, New Orleans, LA [Abstract].

C142. Pepera*, R., Bozorgmehr Nia*, S., and Shafei, B. (2024) Assessment of hybrid fiber-rebar reinforcement under environmental stressors, American Concrete Institute (ACI) Spring Convention, March 24-28, New Orleans, LA [Abstract].

C141. Bozorgmehr Nia*, S., and Shafei, B. (2024) Non-proprietary ultra-high performance concrete incorporating portland limestone cement and waste glass powder, American Concrete Institute (ACI) Spring Convention, March 24-28, New Orleans, LA [Abstract].

C140. Farahzadi*, L., Kioumarsi, M., and Shafei, B. (2023) Life cycle assessment of concrete mixes for global warming mitigation and carbon footprint reduction, Global Cleaner Production Conference, November 9-12, Shanghai, China [Full Length].

C139. Daneshvar, D., Preinstorfer, P., Deix, K., Shafei, B., and Robisson, A. (2023) Characterization of restrained shrinkage in sloped ultra-high performance concrete-normal concrete composites using a distributed fiber optic sensing system, American Concrete Institute (ACI) Fall Convention, October 29-November 2, Boston, MA [Abstract].

C138. Segundo*, M., Odeh*, I., and Shafei, B. (2023) Reconstruction of structural elements based on digital twins concept, Academic Program for Excellence for Engineers (APEX-E) Conference, August 3, Ames, IA [Abstract].

C137. Azad*, S. and Shafei, B. (2023) Evaluation of glass fiber-reinforced polymer (GFRP) as bridge deck reinforcement alternative, 11^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, April 13, Ames, IA [Abstract] [Best Poster Award].

C136. Bozorgmehr Nia*, S. and Shafei, B. (2023) Effect of nano-silica on the microstructure development of ultra-high performance concrete with a sustainable development approach, 11^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, April 13, Ames, IA [Abstract].

C135. Dokhaei*, B., Shafei, B., and Alipour, A. (2023) Wind tunnel tests on large scale aeroelastic model based on Commonwealth Advisory Aeronautical Research Council Coordinators building, 11^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, April 13, Ames, IA [Abstract].

C134. Vakili*, A. and Shafei, B. (2023) Repair of corroded steel girders with ultra-high performance concrete, 11^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, April 13, Ames, IA [Abstract] [Best Poster Award].

C133. Nyland*, A., Wivast*, J., Shafei, B., Kioumarsi, M. (2023) Performance characteristics of ultra-high performance concrete made with limestone cement and waste glass, 11^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, April 13, Ames, IA [Abstract].

C132. Lindersson*, E., Askari*, M., Shafei, B., Kioumarsi, M. (2023) Practices for restoring reinforced concrete bridges subjected to deterioration: Study of bridges in Norway, 11^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, April 13, Ames, IA [Abstract].

C131. Bozorgmehr Nia*, S. and Shafei, B. (2023) Feasibility of using nano-silica in self-consolidating concrete as an eco-friendly approach, 11^th Annual Graduate and Professional Research Conference, April 12, Ames, IA [Abstract].

C130. Dokhaei*, B., Shafei, B., and Alipour, A. (2023) Experimental investigation on wind-induced vibration of a large-scale aeroelastic model, 11^th Annual Graduate and Professional Research Conference, April 12, Ames, IA [Abstract].

C129. Vakili*, A. and Shafei, B. (2023) Numerical investigation of corroded steel girder ends repaired with ultra-high performance concrete, 11^th Annual Graduate and Professional Research Conference, April 12, Ames, IA [Abstract].

C128. Azad*, S. and Shafei, B. (2023) Structural performance of bridge decks reinforced with glass fiber-reinforced polymer, 11^th Annual Graduate and Professional Research Conference, April 12, Ames, IA [Abstract].

C127. Nyland*, A., Wivast*, J., Shafei, B., Kioumarsi, M. (2023) Alternative binder materials for sustainable ultra-high performance concrete mixtures, 11^th Annual Graduate and Professional Research Conference, April 12, Ames, IA [Abstract].

C126. Lindersson*, E., Askari*, M., Shafei, B., Kioumarsi, M. (2023) Strengthening and repair methodologies for deteriorated reinforced concrete bridges – The Norwegian bridge industry’s perspective, American Concrete Institute (ACI) Convention, April 2-6, San Francisco, CA [Abstract].

C125. Kazemian*, M. and Shafei, B. (2022) Natural zeolite for internal curing of ultra-high performance concrete, Iowa Better Concrete Conference, November 6-8, Ames, IA [Abstract].

C124. Bozorgmehr Nia*, S. and Shafei, B. (2022) Improving the performance of concrete: Use of micro silica, nano silica or both?, Iowa Better Concrete Conference, November 6-8, Ames, IA [Abstract] [Best Poster Award].

C123. Raza, S., Julien, M., Shafei, B., Saiidi, M.S., Motavalli, M., and Shahverdi, M. (2022) Seismic retrofitting of bridge piers using pre-stressed Fe-SMA rebars, 6^th International Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures, September 6-8, Shanghai, China [Full Length].

C122. Shi*, W. and Shafei, B. (2022) Design of shrinkage-compensating cement concretes resistant to chloride penetration, 6^th International Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures, September 6-8, Shanghai, China [Full Length].

C121. Santana*, M., Azad*, S., and Shafei, B. (2022) Accelerated corrosion test of structural steel angles, APEX-E Student Research Showcase and Poster Presentation, August 4, Ames, IA [Abstract].

C120. Daneshvar, D., Deix, K., Robisson, A., and Shafei, B. (2022) Investigation of drying shrinkage effects on sloped concrete-concrete composites, Computational Modelling of Concrete and Concrete Structures (Euro-C) Conference, May 23-26, Vienna, Austria [Full Length]. 

C119. Karim*, R. and Shafei, B. (2021) Development of ABC UTC non-proprietary UHPC using Iowa materials, Accelerated Bridge Construction Conference, December 8-10, Miami, FL [Abstract]. 

C118. Saini*, D. and Shafei, B. (2021) A novel design procedure for CFRP-strengthened concrete-filled steel tubes to resist lateral impact loads, 10^th International Conference on FRP Composites in Civil Engineering, December 8-10, Istanbul, Turkey [Abstract].

C117. Kazemian*, M. and Shafei, B. (2021) Exploring the benefits of supplementary cementitious materials for ultra-high performance concrete, Iowa Better Concrete Conference, November 9-10, Ames, IA [Abstract].

C116. Saini*, D. and Shafei, B. (2021) Vulnerability assessment of structural insulated panels subjected to windborne debris impact, 6^th American Association for Wind Engineering Workshop, May 12-14, Clemson, SC [Extended Abstract].

C115. Hareendran, S. P., Alipour, A., Shafei, B., and Sarkar, P. (2021) Performance-based wind design of tall buildings considering the nonlinearity in building response, 6^th American Association for Wind Engineering Workshop, May 12-14, Clemson, SC [Extended Abstract].

C114. Karim*, R., and Shafei, B. (2020) Innovations in design and configuration of link slabs for jointless bridges, 9^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, March 5, Ames, IA [Abstract].

C113. Kulkarni*, A., Shafei, B., Freeseman, K., and Phares, B. (2020) Quantification of excessive rotations in exterior girders during casting bridge decks, 9^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, March 5, Ames, IA [Abstract].

C112. Rogers*, Q., Shi*, W., and Shafei, B. (2020) Full-scale investigation of the repair of pre-stressed beam ends, 9^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, March 5, Ames, IA [Abstract].

C111. Oppong*, K., Saini*, D., and Shafei, B. (2020) Performance assessment of scoured bridges subjected to barge collision, 9^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, March 5, Ames, IA [Abstract].

C110. Eikamp*, J. and Shafei, B. (2020) Investigation of early-age shrinkage cracking in fiber-reinforced concrete and shrinkage-compensating cement concrete, 9^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, March 5, Ames, IA [Abstract]. 

C109. Duffy*, C. and Shafei, B. (2020) Tied approach slab Failure: Field investigations and numerical simulations, 9^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, March 5, Ames, IA [Abstract]. 

C108. Shi*, W., Najimi*, M., and Shafei, B. (2019) Investigation of chloride penetration in shrinkage-compensating cement concrete, Mid-Continent Transportation Research Symposium, August 21-22, Ames, IA [Abstract].

C107. Saini*, D. and Shafei, B. (2019) Performance assessment of multi-column piers subjected to vehicle collision, Mid-Continent Transportation Research Symposium, August 21-22, Ames, IA [Abstract].

C106. Kulkarni*, A., Shafei, B., Freeseman, K., and Phares, B. (2019) Investigation of exterior girder rotation during bridge deck construction, Mid-Continent Transportation Research Symposium, August 21-22, Ames, IA [Abstract].

C105. Shurbert-Hetzel*, C. and Shafei, B. (2019) Structural behavior of frame piers under temperature and shrinkage effects, Mid-Continent Transportation Research Symposium, August 21-22, Ames, IA [Abstract].

C104. Oppong*, K., Saini*, D., and Shafei, B. (2019) Investigation of over-height vehicle collision into bridge superstructures, Mid-Continent Transportation Research Symposium, August 21-22, Ames, IA [Abstract].

C103. Veigas*, G., Najimi*, M., and Shafei, B. (2019) Mitigation of early-age cracking of high-performance concrete, Mid-Continent Transportation Research Symposium, August 21-22, Ames, IA [Abstract].

C102. Rogers*, Q., Shi*, W., and Shafei, B. (2019) Innovative strategies for the repair of pre-stressed beam ends, Mid-Continent Transportation Research Symposium, August 21-22, Ames, IA [Abstract].

C101. Hayashi*, J., Ko*, I., Rogers*, Q, Shi*, W., and Shafei, B. (2019) Involvement in the laboratory testing for the beam end repair project, Academic Program for Excellence for Engineers (APEX-E) Conference, August 8, Ames, IA [Abstract].

C100. Gepson*, P., O’Brien*, M., DeJong*, A., and Shafei, B. (2019) Investigation of bonding mechanisms in non-conventional concrete and reinforcement materials, University Honors Poster Presentation, Iowa State University, May 1, Ames, IA [Abstract].

C99. Shurbert-Hetzel*, C. and Shafei, B. (2019) Dynamic message sign support structures under extreme winds, 8^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, January 24, Ames, IA [Abstract] [Best Poster Award]. 

C98. DeJong*, A., Shafei, B., and Hosteng, T. (2019) Innovations in integral abutment connection details for accelerated bridge construction, 8^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, January 24, Ames, IA [Abstract].

C97. Kulkarni*, A., Shafei, B., Freeseman, K., and Phares, B. (2019) Investigation of exterior girder rotation during deck construction, 8^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, January 24, Ames, IA [Abstract].

C96. Shi*, W., Shafei, B., and Phares, B. (2019) Study of main mechanical properties of ASTM A1010 steel, 8^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, January 24, Ames, IA [Abstract].

C95. Karim*, R., Najimi*, M., and Shafei, B. (2019) Investigation of chloride penetration into ultra-high performance concrete, 8^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, January 24, Ames, IA [Abstract].

C94. Rogers*, Q. and Shafei, B. (2019) Repairing steel structures using cold gas dynamic spray, 8^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, January 24, Ames, IA [Abstract].

C93. Oppong*, K., Saini*, D., and Shafei, B. (2019) Impact forces from over-height vehicles, 8^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, January 24, Ames, IA [Abstract].

C92. Krapf*, D., Hajilar*, S., Shafei, B., and Phares, B. (2019) Increasing bridge end service life: Superior semi-integral abutment performance and drainage, 8^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, January 24, Ames, IA [Abstract].

C91. Saini*, D. and Shafei, B. (2019) Performance of concrete-filled steel tube bridge columns subjected to vehicle collision, 8^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, January 24, Ames, IA [Abstract] [Best Poster Award].

C90. Karim*, R., Najimi*, M., and Shafei, B. (2019) Development of non-proprietary ultra-high performance concrete: Assessment of transport properties, Transportation Research Board Annual Meeting, January 13-17, Washington, DC [Full Length].

C89. Oppong*, K., Saini*, D., and Shafei, B. (2019) Impact forces from over-height tractor-semitrailer collision with bridge superstructures, Transportation Research Board Annual Meeting, January 13-17, Washington, DC [Full Length].

C88. Shi*, W., Shafei, B., and Phares, B. (2019) Laboratory investigation of structural performance of A1010 steel for bridge applications, Transportation Research Board Annual Meeting, January 13-17, Washington, DC [Full Length].

C87. Shi*, W., Najimi*, M., and Shafei, B. (2018) Investigation of chloride permeability in shrinkage-compensating cement concretes, Iowa Better Concrete Conference, November 7-8, Ames, IA [Abstract] [Best Poster Award].

C86. Karim*, R., Najimi*, M., and Shafei, B. (2018) Non-proprietary ultra-high performance concrete with local materials, Iowa Better Concrete Conference, November 7-8, Ames, IA [Abstract].

C85. Veigas*, M.G., Najimi*, M., and Shafei, B. (2018) Mechanical, fresh, and thermal properties of PCM-embedded concrete panels, Iowa Better Concrete Conference, November 7-8, Ames, IA [Abstract] [Best Poster Award].

C84. Najimi*, M. and Shafei, B. (2018) Development of energy-efficient concrete materials through innovative encapsulation strategies for phase change materials, American Concrete Institute’s Fall Convention, October 14-18, Las Vegas, NV [Abstract].

C83. Rogers*, Q., Hajilar*, S., and Shafei, B. (2018) Use of cold gas dynamic spray for repair of steel structures, Innovations in Transportation Conference, October 9-10, Ames, IA [Abstract].

C82. Saini*, D. and Shafei, B. (2018) Vulnerability of metal roof decking systems subjected to windborne debris impact, 5^th American Association for Wind Engineering Workshop, August 12-14, Miami, FL [Full Length].

C81. Saini*, D. and Shafei, B. (2018) Vulnerability assessment of concrete filled steel tube columns under multiple extreme events: corrosion and vehicular impact, ASCE SEI Structures Congress, April 19-21, Fort Worth, TX [Full Length].

C80. Najimi*, M., Ghafoori, N., and Shafei, B. (2018) Fresh and strength properties of alkali-activated natural pozzolan/slag mortars, Transportation Research Board Annual Meeting, January 7-11, Washington, DC [Full Length].

C79. Dopko*, M., Najimi*, M., Shafei, B., Wang, X., Taylor, P., and Phares, B. (2018) Flexural performance evaluation of fiber reinforced concrete incorporating multiple macro-synthetic fibers, Transportation Research Board Annual Meeting, January 7-11, Washington, DC [Full Length].

C78. Dopko*, M., Najimi*, M., Shafei, B., Wang, X., Taylor, P., and Phares, B. (2018) Assessment of strength and restrained shrinkage behaviors on micro-carbon fiber reinforced concrete with binary chemical admixtures, Transportation Research Board Annual Meeting, January 7-11, Washington, DC [Full Length].

C77. Saini*, D. and Shafei, B. (2018) Numerical investigation of CFRP-composite-strengthened RC bridge pier against vehicle collision, Transportation Research Board Annual Meeting, January 7-11, Washington, DC [Full Length].

C76. Khatami*, D., Hajilar*, S., and Shafei, B. (2018) Condition assessment of reinforced concrete structures in harsh environments: A cellular automaton framework, Transportation Research Board Annual Meeting, January 7-11, Washington, DC [Full Length].

C75. Kulkarni*, A. and Shafei, B. (2018) Impact of extreme events on transportation infrastructure in Iowa: A Bayesian network approach, Transportation Research Board Annual Meeting, January 7-11, Washington, DC [Full Length].

C74. Dopko*, M., Shafei, B., Taylor, P., and Phares, B. (2017) Comparison of multiple concrete fiber types and volumes for cast-in-place ABC link slabs, National Accelerated Bridge Construction Conference, December 7-8, Miami, FL [Abstract].

C73. Khatami*, D. and Shafei, B. (2017) Bridging the gap between theory and practice toward an enhanced bridge management system, 7^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, November 29, Ames, IA [Abstract].

C72. Saini*, D. and Shafei, B. (2017) Structural response assessment of CFRP strengthened reinforced concrete bridge piers subjected to vehicular impact, 7^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, November 29, Ames, IA [Abstract] [Best Poster Award].

C71. Shi*, W., Shafei, B., and Phares, B. (2017) Laboratory and numerical investigation of reinforced longitudinal joints in bridges with adjacent box beams, 7^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, November 29, Ames, IA [Abstract].

C70. Dopko*, M., Shafei, B., Taylor, P., and Phares, B. (2017) Accelerated bridge construction link slabs: Fiber reinforced concrete material tailoring, 7^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, November 29, Ames, IA [Abstract].

C69. Kulkarni*, A. and Shafei, B. (2017) Estimation of forces in cross frames of horizontally curved girder bridges, 7^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, November 29, Ames, IA [Abstract].

C68. Oppong*, K. and Shafei, B. (2017) Effect of scour on bridge pier and abutments during barge collision, 7^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, November 29, Ames, IA [Abstract].

C67. Shi*, W., Najimi*, M., Shafei, B., and Phares, B. (2017) Evaluation of concrete mixes with type K cement, Iowa Better Concrete Conference, November 8-9, Ames, IA [Abstract].

C66. Hajilar*, S. and Shafei, B. (2017) Diffusion of chloride ions and water molecules at basal surfaces of monosulfoaluminate: A molecular dynamics study, Iowa Better Concrete Conference, November 8-9, Ames, IA [Abstract] [Best Poster Award].

C65. Oppong*, K., Nandibhatla*, J., Shafei, B., Sritharan, S., and Phares, B. (2017) K-UHPC field and laboratory tests, Iowa Better Concrete Conference, November 8-9, Ames, IA [Abstract].

C64. Dopko*, M., Najimi*, M., Shafei, B., Taylor, P., and Phares, B. (2017) Performance of fiber reinforced concrete incorporating multiple macro-synthetic fibers, Iowa Better Concrete Conference, November 8-9, Ames, IA [Abstract].

C63. Shafei, B., Phares, B., Dopko*, M., and Hajilar*, S. (2017) Design and configuration of jointless bridges for ABC applications, Western Bridge Engineers’ Seminar, September 6-8, Portland, OR [Abstract].

C62. Hajilar*, S. and Shafei, B. (2017) Molecular dynamics simulations of diffusion of chloride ions in nano-pores of hydrated cement paste, Nano@IAState, July 27, Ames, IA [Abstract].

C61. Saini*, D. and Shafei, B. (2017) Calibration of barge models for reliable prediction of impact force on bridge piers, ASCE SEI Structures Congress, April 6-8, Denver, CO [Full Length].

C60. Saini*, D. and Shafei, B. (2017) Performance evaluation of concrete filled steel tube bridge piers under vehicle impact, Transportation Research Board Annual Meeting, January 8-12, Washington, DC [Full Length].

C59. Khatami*, D. and Shafei, B. (2017) Climate change impact on management of deteriorating bridges: A case study of U.S. Midwest region, Transportation Research Board Annual Meeting, January 8-12, Washington, DC [Full Length].

C58. Arabi*, S., Shafei, B., and Phares, B. (2017) Vulnerability assessment of sign support structures during transportation, Transportation Research Board Annual Meeting, January 8-12, Washington, DC [Full Length].

C57. Hajilar*, S., Dopko*, M., Shafei, B., Phares, B., and Bierwagen, D. (2017) Feasibility assessment of use of link slabs in a case study bridge in Iowa, Transportation Research Board Annual Meeting, January 8-12, Washington, DC [Full Length].  

C56. Khatami*, D. and Shafei, B. (2016) Impact of climate change on deterioration of reinforced concrete structures, 6^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, November 30, Ames, IA [Abstract].

C55. Saini*, D. and Shafei, B. (2016) Concrete filled steel tube columns under multiple hazards: Corrosion and vehicular impact, 6^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, November 30, Ames, IA [Abstract].

C54. Arabi*, S., Shafei, B., and Phares, B. (2016) Vulnerability assessment of sign support structures during transportation, 6^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, November 30, Ames, IA [Abstract] [People’s Choice Award].

C53. Hajilar*, S. and Shafei, B. (2016) Atomistic insights to diffusion of chloride ions and water molecules at interfaces of ettringite, 6^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, November 30, Ames, IA [Abstract] [Best Poster Award].

C52. Shi*, W., Shafei, B., and Phares, B. (2016) Investigation of structural behavior of longitudinal joints in bridges with adjacent box beams under thermal loads, 6^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, November 30, Ames, IA [Abstract].

C51. Dopko*, M., Hajilar*, S., Shafei, B., and Phares, B. (2016) Structural behavior of bridges with link slabs under various loading conditions, 6^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, November 30, Ames, IA [Abstract].

C50. Nandibhatla*, J., Sritharan, S., and Shafei, B. (2016) Evaluation of long-term durability properties of Korean UHPC, First International Interactive Symposium on UHPC, July 18-20, Des Moines, IA [Abstract].

C49. Khatami*, D. and Shafei, B. (2016) Investigation of climate change effects on transportation asset management, 11^th National Conference on Transportation Asset Management, July 10-12, Minneapolis, MN [Abstract].

C48. Shi*, W., Shafei, B., and Phares, B. (2016) Evaluation of shear key materials for box-beam bridge connections, 3^rd Graduate and Professional Research Conference, April 12, Ames, IA [Abstract] [Best Oral Presentation].

C47. Saini*, D. and Shafei, B. (2016) Investigation of concrete material models developed for high-velocity impact simulations, 3^rd Graduate and Professional Research Conference, April 12, Ames, IA [Abstract].

C46. Khatami*, D. and Shafei, B. (2016) Enhanced bridge management systems: Incorporation of gradual and sudden deterioration mechanisms, 3^rd Graduate and Professional Research Conference, April 12, Ames, IA [Abstract].

C45. Hajilar*, S. and Shafei, B. (2016) Assessment of physical and chemical origin of mechanical failure mechanisms of Al-rich species of hydrated cement paste, 3^rd Graduate and Professional Research Conference, April 12, Ames, IA [Abstract].

C44. Khatami*, D. and Shafei, B. (2016) Optimized maintenance policies for deteriorating structures, ASCE Geotechnical and Structural Engineering Congress, February 14-17, Phoenix, AZ [Full Length].

C43. Khatami*, D., Shafei, B., and Smadi, O. (2016) Management of bridges under aging mechanisms and extreme events: A Risk-Based Approach, Transportation Research Board Annual Meeting, January 10-14, Washington, DC [Full Length].

C42. Khatami*, D. and Shafei, B. (2015) Risk-based management of bridges under combined effects of aging mechanisms and extreme events, 5^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, December 3, Ames, IA [Abstract].

C41. Saini, D.*, Ribbans, D., and Shafei, B. (2015) Structural vulnerability assessment of bridge piers in the event of barge collision, 5^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, December 3, Ames, IA [Abstract].

C40. Arabi*, S., Shafei, B., and Phares, B. (2015) Vulnerability assessment of dynamic message sign support structures under extreme environmental conditions, 5^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, December 3, Ames, IA [Abstract].

C39. Hajilar*, S. and Shafei, B. (2015) Nano-scale investigation of failure mechanisms in Al-rich species of hydrated cement paste subjected to extreme deformations, 5^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, December 3, Ames, IA [Abstract] [Best Poster Award].

C38. Shi*, W., Shafei, B., and Phares, B. (2015) Investigation of concrete mix materials for adjacent box beam joints, 5^th Annual CCEE Graduate Student Council Research Showcase and Poster Competition, December 3, Ames, IA [Abstract].

C37. Khatami*, D., Shafei, B., and Anderson, C. (2015) Development of computational models to investigate climate change effects on long-term performance of aging structures, Midcontinent Transportation Research Symposium, August 19-20, Ames, IA [Abstract].

C36. Khatami*, D., Shafei, B., Bektas, B., and Smadi, O. (2015) Optimized decision making strategies for deteriorating civil infrastructure components, Midcontinent Transportation Research Symposium, August 19-20, Ames, IA [Abstract].

C35. Hajilar*, S. and Shafei, B. (2015) Large atomistic deformation of calcium aluminate trisulfate hydrates: A molecular dynamics investigation, Midwest Thermodynamics and Statistical Mechanics Conference, May 28-29, Ames, IA [Abstract].

C34. Hajilar*, S. and Shafei, B. (2015) Molecular dynamics simulation of elastic properties of ordered C-S-H gel: Case study of tobermorite and jennite, 5^th International Symposium on Nanotechnology in Construction, May 24-26, Chicago, IL [Full Length].

C33. Khatami*, D. and Shafei, B. (2015) Impact of climate change on deterioration of reinforced concrete highway bridges, ASCE SEI Structures Congress, April 23-25, Portland, OR [Full Length].

C32. Alipour, A. and Shafei, B. (2015) Multi-scale seismic resilience assessment of aging infrastructure systems, ASCE SEI Structures Congress, April 23-25, Portland, OR [Full Length].

C31. Alipour, A. and Shafei, B. (2015) A multi-hazard reliability-based methodology for seismic design of bridges in flood-prone regions, ASCE SEI Structures Congress, April 23-25, Portland, OR [Full Length].

C30. Hajilar*, S. and Shafei, B. (2015) Atomistic deformation mechanisms of chemically complex hydrated oxides under tensile loads: Case study of tobermorite and jennite, 2^nd Graduate and Professional Research Conference, April 2, Ames, IA [Abstract].

C29. Khatami*, D. and Shafei, B. (2015) A statistical approach for management of civil infrastructure components under climate change effect, 2^nd Graduate and Professional Research Conference, April 2, Ames, IA [Abstract].

C28. Boakye*, J., Muench*, E., and Shafei, B. (2015) Vulnerability assessment of highly skewed bridges under seismic excitations, Transportation Research Board Annual Meeting, January 11-15, Washington, DC [Full Length].

C27. Khatami*, D. and Shafei, B. (2015) Stochastic assessment of human judgment factor in condition-based maintenance strategies for civil infrastructure, Transportation Research Board Annual Meeting, January 11-15, Washington, DC [Full Length].

C26. Shafei, B. and Alipour, A. (2014) Development of life-time seismic fragility curves for aging bridges, 2^nd European Conference on Earthquake Engineering and Seismology, August 25-29, Istanbul, Turkey [Full Length].

C25. Shafei, B. (2014) Evaluation of deteriorating reinforced concrete superstructures: A Stochastic Computational Framework, 7^th Computational Stochastic Mechanics Conference, June 15-18, Santorini, Greece [Abstract].

C24. Boakye*, J. and Shafei, B. (2014) Vulnerability assessment of skewed bridges under earthquake loads, ASCE SEI Structures Congress, April 3-5, Boston, MA [Abstract].  

C23. Berthaume*, A. and Shafei, B. (2014) Effects of climate change on deterioration of reinforced concrete highway bridges, ASCE SEI Structures Congress, April 3-5, Boston, MA [Abstract]. 

C22. Shafei, B. and Alipour, A. (2014) Life-time risk assessment of reinforced concrete highway bridges under deterioration processes, ASCE SEI Structures Congress, April 3-5, Boston, MA [Full Length].

C21. Shafei, B. and Alipour, A. (2013) A holistic probability-based approach to assess the corrosion process in reinforced concrete structures, 2^nd Conference on Monitoring, Assessment, and Rehabilitation of Civil Structures, September 9-11, Istanbul, Turkey [Full Length].

C20. Alipour, A. and Shafei, B. (2013). Failure estimation of highway bridges under combined effects of uncorrelated extreme events, 7^th National Seismic Conference on Bridges and Highways, May 20-22, Oakland, CA [Abstract].

C19. Shafei, B. (2013) Probabilistic evaluation of structural degradation in reinforced concrete structures under deterioration processes, ASCE Engineering Mechanics Institute Conference, August 4-7, Evanston, IL [Abstract].

C18. Shafei, B. and Alipour, A. (2013) Assessment of extent of capacity loss in deteriorated highway bridges, ASCE SEI Structures Congress, May 2-4, Pittsburgh, PA [Full Length].

C17. Alipour, A. and Shafei, B. (2012) Performance assessment of highway bridges under earthquake and scour effects, 15^th World Conference on Earthquake Engineering, September 24-28, Lisbon, Portugal [Full Length].

C16. Shafei, B. and Alipour, A. (2012) Vulnerability assessment of deteriorated bridges under seismic events, 15^th World Conference on Earthquake Engineering, September 24-28, Lisbon, Portugal [Full Length].

C15. Alipour, A., Shafei, B., and Shinozuka, M. (2011) Probabilistic estimation of seismic fragility parameters for deteriorated reinforced concrete bridges, 11^th International Conference on Applications of Statistics and Probability in Civil Engineering, August 1-4, Zurich, Switzerland [Full Length]. 

C14. Shafei, B. and Shinozuka, M. (2011) A novel vulnerability index for design of RC bridges subjected to seismic hazards and environmental stressors, International Bridge Conference, June 5-8, Pittsburgh, PA [Full Length] [James D. Cooper Best Paper Award].

C13. Shafei, B. and Shinozuka, M. (2011) Seismic performance prediction of highway bridges: Role of structural health monitoring, EERI Annual Meeting, Theme: “Earthquakes without Borders”, February 9-12, San Diego, CA [Abstract].

C12. Alipour, A., Shafei, B., and Shinozuka, M. (2010) Deterministic and probabilistic evaluation of time to corrosion initiation of bridges located in coastal areas, 5^th International Conference on Bridge Maintenance, Safety and Management, July 11-15, Philadelphia, PA [Full Length].

C11. Alipour, A., Shafei, B., and Shinozuka, M. (2010) Failure estimation of highway bridges under combined effects of scouring and earthquake, 5^th International Conference on Bridge Maintenance, Safety and Management, July 11-15, Philadelphia, PA [Full Length].

C10. Alipour, A., Shafei, B., and Shinozuka, M. (2010) Life cycle cost analysis of highway bridges in chloride contaminated environments, ASCE SEI Structures Congress, May 12-14, Orlando, FL [Full Length].

C9. Alipour, A., Shafei, B., and Shinozuka, M. (2010) Evaluation of uncertainties associated with design of highway bridges considering simultaneous effects of scouring and earthquake, ASCE SEI Structures Congress, May 12-14, Orlando, FL [Full Length].

C8. Shafei, B. and Zareian, F. (2009) Seismic response evaluation of drift-and displacement-sensitive nonstructural building components, 7^th NSF/NEES Annual Meeting, June 22-25, Honolulu, HI [Full Length].

C7. Shafei, B. and Zareian, F. (2009) Role of ground motion selection method in collapse capacity assessment of structures, ASCE SEI Structures Congress, April 29-May 2, Austin, TX [Full Length].

C6. Shafei, B. and Zareian, F. (2009) Development of loading protocols for drift-sensitive nonstructural building components, ASCE SEI Structures Congress, April 29-May 2, Austin, TX [Full Length].

C5. Shafei, B. and Zareian, F. (2009) Effects of ground motion characteristics on collapse capacity prediction of structural systems, EERI-WSSPC Annual Meeting, Theme: “Earthquake Risk Reduction”, February 11-14, Salt Lake City, UT [Abstract].

C4. Shafei, B. and Zareian, F. (2008) Development of quasi-static loading protocols for displacement-sensitive nonstructural building components, 14^th World Conference on Earthquake Engineering, October 12-17, Beijing, China [Full Length].

C3. Shafei, B., Mirghaderi, S.R., Motavalli, M., and Lestuzzi, P. (2008) Seismic evaluation and upgrading of typical steel buildings, 14^th World Conference on Earthquake Engineering, October 12-17, Beijing, China [Full Length]. 

C2. Shafei, B., Lestuzzi, P., Motavalli, M., and Mirghaderi, S.R. (2006) Existing steel buildings: state of the practice; Part 2: Engineered practices, 13^th European Conference on Earthquake Engineering and Seismology, September 3-8, Geneva, Switzerland [Full Length].

C1. Shafei, B., Lestuzzi, P., Motavalli, M., and Mirghaderi, S.R. (2006) Existing steel buildings: state of the practice; Part 1: Non-engineered practices”, 13^th European Conference on Earthquake Engineering and Seismology, September 3-8, Geneva, Switzerland [Full Length].

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