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: Seismic Shear Strengthening Method for Existing R/C Short Columns
Author(s): K. Yoshimura, K. Kikcuri, and M. Kuroki
Publication: Special Publication
Appears on pages(s): 1065-1080
Keywords: earthquake-resistant structures; plates (structural members); reinforced concrete; reinforcing steels; repair; shear strength; tests; short columns; Structural Research
Abstract:There are quite a large number of existing reinforced concrete (RC) short columns which are expected to fail in brittle shear failure mode during severe earthquakes. To develop an effective seismic shear strengthening method for improving the earthquake behavior of these reinforced concrete short columns, experimental studies are conducted by using six different 1/3-scale beam-column subassemblage specimens with a short column. Three short columns of these specimens are strengthened by steel plates, while another three are without any steel plate strengthening. All the specimens are tested under a constant gravity load and alternately repeated lateral forces. Test results demonstrate that, if the short column is strengthened by a welded steel square tube, then brittle shear failure does not occur and the column can develop its ultimate flexural moment capacity. It is also shown by additional tests that the proposed strengthening method using steel plates is applicable to repair and rehabilitate the damaged short columns that failed in the brittle shear mode. Finally, an application example of the proposed strengthening method to the actual existing short columns is presented.
Click here to become an online Journal subscriber