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: Analytical Study of Torsional Moment Induced by Shifting of Shear Center of RC Cross Sections
Author(s): H. Nakamura, Y. Yamamoto, A. Itoh, and T. Tanabe
Publication: Special Publication
Appears on pages(s): 177-188
Keywords: asymmetric-resistant mechanism; biaxial loading; fiber technique; induced torsional moment; shear center; shear flow
Abstract:For members with symmetric cross-sections, the geometric centroid and shear center are coincident. Thus, if lateral load is applied through the geometric centroid, a torsional moment is not induced. However, a RC cross sections typically develop an asymmetric resistance mechanisms, resulting in progressive movement of the shear center away from the geometric centroid as nonlinearity increases and the section responds to bi-axial loading. In this study, the mechanism causing shifting of the shear center for RC cross sections was investigated using frame elements with a fiber-type discretization of the member cross-section. Then, the effects of the torsional moment induced by the shifting of the shear center were discussed, and it was shown that the effect in not negligible in practical design.
Click here to become an online Journal subscriber