In today’s market, it is imperative to be knowledgeable and have an edge over the competition. ACI members have it…they are engaged, informed, and stay up to date by taking advantage of benefits that ACI membership provides them.
Read more about membership
Become an ACI Member
Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
American Concrete Institute
38800 Country Club Dr.
Farmington Hills, MI
Chat with Us Online Now
Feedback via Email
Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Drift Demands on Reinforced Concrete Structures Subjected to Strong Ground Motions
Author(s): Lucas A. Laughery and Santiago Pujol
Publication: Structural Journal
Appears on pages(s): 103-115
Keywords: drift; drift demand; earthquake simulation; high-strength steel; reinforced concrete
Abstract:Four reinforced concrete portal frames were tested on an earthquake simulator. Columns in two frames had conventional steel longitudinal reinforcement. Columns in the other two frames had smaller-diameter, ultra-high-strength steel longitudinal reinforcement (fy >120 ksi [830 MPa]). Test results suggested that peak drift was driven by the initial period of the frames (based on uncracked sections). To examine this observation in more detail, a database was used to evaluate an equation in which peak drift is expressed in terms of initial period and peak ground velocity (PGV), neither of which are sensitive to reinforcement ratio, yield stress, or displacement history. This database includes results from more than 160 laboratory tests and the measured responses of three buildings to earthquakes. For motions representative of what has been observed in the field and in the ranges considered, this expression provided a reasonable upper-bound estimate of drift for tests in the database.
Click here to become an online Journal subscriber