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Posted 18 September 2014
American Concrete Institute (ACI) Fellow Carlos E. Ospina, PhD, PE, will deliver the 2014 Herbert J. Roussel, Jr. lecture at the 24th Annual Louisiana Civil Engineering Conference & Show on 24 September. The lecture is presented in honor of the late Herbert J. Roussel, Jr., who was one of the founding members of the American Society of Civil Engineers (ASCE) Structural Committee of New Orleans Branch and served on the ASCE Executive Committee from 1991 to 2005. Since 2006, a distinguished presenter is selected annually by the Structure Engineering Institute Chapter of New Orleans to deliver this lecture.
Carlos’ lecture, entitled “Serviceability Design of Concrete Structures in Marine Environments,” presents a series of practical considerations for the control of flexural cracking and short-term deflections due to imposed loads on prestressed and reinforced concrete elements. The long-term performance of concrete structures in marine environments depends largely on their behavior under service loads. The serviceability design of these types of structures aims at keeping stresses and deformations in concrete and steel reinforcement within allowable limits. This is done by complying with a series of serviceability limit states with the goal of preserving the functionality and durability of the structure. The genesis of current crack and deflection control design provisions in ACI 318 and AASHTO LRFD standards are presented and their implementation in the serviceability design of concrete marine infrastructure examined.
Carlos serves as office manager and senior project manager with the International Ports and Terminals group in Houston, Texas. He is responsible for the planning, design, and support during construction of marine infrastructure projects, including container wharves and terminals, oil/fuel transfer facilities, bulk handling terminals, and cruise piers. Carlos is also involved with various technical committees, including ASCE/ACI 445, Shear and Torsion; ACI 543, Piles; and ACI 318S, Spanish Translations. He is cochair of ACI 445C, Punching Shear, a member of fib working party on shear in slabs, and associate member of ASCE Committee on seismic design of pile-supported wharves and piers.