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.
ACI World Headquarters
38800 Country Club Dr.
Farmington Hills, MI
ACI Middle East Regional Office
Second Floor, Office # 02.01/07
The Offices 02 Building, One Central
Dubai World Trade Center Complex
Phone: +971.4.516.3208 & 3209
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: Seismic Design of Bridges to Relate Ductility and Sway
Author(s): Ergin Atimtay
Publication: Special Publication
Appears on pages(s): 1243-1256
Keywords: abutments; bridges (structures); ductility; structural analysis; earthquake-resistant structures; moment-curvature relationship; piers; structural design; superstructures; Design
Abstract:A design method has been proposed that considers the interaction of the superstructure with the abutments. The superstructure sways freely under moderate intensity ground shaking. At this stage, the piers are considered to be taxed at 70 percent of their capacity. Under the design earthquake, the piers hinge and bang against the abutments. The soil passive resistance behind the abutment back wall is mobilized, which is considered as elastic springs in the computer model. The sway of the superstructure is carefully monitored to limit the displacement of the abutment to avoid stability problems. The maximum resistance of the soil behind the backwall is also limited. Since the maximum longitudinal sway is known, the demand on ductility of the pier is quantified by plastic analysis. This demand is checked against the realistic thrust-moment-curvature relationship of the pier. Iterations may be performed to satisfy the constraints and achieve acceptable results.
Click here to become an online Journal subscriber
Please enter this 5 digit unlock code on the web page.