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
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: Precast Seismic Bridge Column Connection Using Ultra- High-Performance Concrete Lap Splice
Author(s): Titchenda Chan, Kevin R. Mackie, and Zachary B. Haber
Publication: Structural Journal
Appears on pages(s): 217-229
Keywords: accelerated bridge construction; bond slip; ductility; highstrength steel; lap splice; shifted plastic hinge
Abstract:In high seismic regions, prefabricated columns have seen limited applications because the connections generally coincide with the plastic hinge (PH) region, where major damage occurs. This paper proposes a simple and damage-tolerant precast column connection for use in medium and high seismic regions that uses ultra-high-performance concrete (UHPC). The connection laps the longitudinal reinforcement from precast column with footing dowel bars using a short splice length, a practical reinforcing bar cover, and no shear reinforcement within the connection region. High-strength bars were used as the footing dowels to shift PH formation above the connection region to prevent footing damage due to inelastic strain penetration, and ensure the target lateral load and displacement ductility capacity. The connection was investigated experimentally by testing two 0.42-scale precast columns (flexural and flexural-shear) under reversed cyclic loading. Responses of the precast columns were compared with two reference cast-in-place (CIP) columns. Results indicate that the proposed connection performed well in shear, developed the column longitudinal bars, shifted PH formation above the UHPC region, and exhibited similar or improved lateral capacity and ductility compared with the CIP columns.
Click here to become an online Journal subscriber
Please enter this 5 digit unlock code on the web page.