July 9, 2013
Event: ACI Houston Chapter / General Meeting
Topic: High-Performance Fiber-Reinforced Concrete
High-performance fiber-reinforced concrete (HPFRC) has improved mechanical performance (high ductility, confinement, and energy-absorption) and durability, providing an alternative to concrete. Although a significant number of experimental studies have demonstrated superior properties of reinforced HPFRC (R-HPFRC), this novel material is rarely used in practice, mainly because of the higher initial cost. In this study, experimental data on testing of HPFRC materials and components are used to derive and calibrate numerical models. The calibrated numerical models are employed in a life-cycle cost assessment framework to quantify the benefits of using HPFRC in buildings subjected to strong earthquakes. Results indicate that the higher initial cost of the material is compensated for by the reduced lifetime repair cost. The presentation will also discuss other potential uses of HPFRC in conjunction with other advanced materials to improve seismic performance of reinforced concrete structures.
Bora Gencturk received his M.S. and Ph.D. degrees from the University of Illinois at Urbana-Champaign. Currently, he is an assistant professor of Civil and Environmental Engineering at the University of Houston (UH). Before joining UH and during his graduate studies, he has worked for five years at the Mid-America Earthquake (MAE) Center as a researcher on various projects related to structural earthquake engineering. He has participated in two earthquake reconnaissance missions after the Niigata Chuetsu-Oki, Japan (2007) and Maule, Chile (2010) earthquakes. Dr. Gencturk’s technical interests include use of advanced materials for hazard mitigation and sustainable construction, life-cycle analysis of new and existing structures subjected to multiple hazards, development of structural testing methods and vulnerability assessment of structures. Dr. Gencturk is a member of ASCE, ACI, EERI and ASEE. He is currently serving on the ASCE “Experimental Methods in Earthquake Engineering” and the ACI “Earthquake Resistant Bridges-Performance-based Seismic Design” subcommittees.
Event Sponsored by Ductilcrete Slab Systems. Ductilcrete Slab Systems is a design company that along with licensed concrete contractors make up the Ductilcrete Alliance. 13 contractors throughout the US have partnered with Ductilcrete Slab Systems to offer turnkey design build concrete slabs, pavements and toppings that are initially cost competitive with traditional designs. Ductilcrete Slab Systems have done projects in many areas of the country and are capable of performance anywhere in the lower 48.
NOTE: The ACI Houston Chapter Board of Directors has voted to make the General Membership meetings free to Chapter Members only beginning in March, 2013 . Non-members are welcome to reserve a seat and attend but you will be asked to join the chapter at the door. (Affiliate Member: $25 Member: $15 Student Member: $10)