ABOUT THE 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.

International Concrete Abstracts Portal

  


Title: Web-Shear Capacity of Prestressed Composite Inverted Multi-Tee Slabs

Author(s): Sun-Jin Han, Deuckhang Lee, and Kang Su Kim

Publication: Structural Journal

Volume: 118

Issue: 3

Appears on pages(s): 295-304

Keywords: composite member; inverted multi-tee slab; shear design; transformed section

Date: 5/1/2021

Abstract:
Prestressed inverted multi-tee (IMT) slabs have been widely used in recent precast construction as a fast-built composite flooring system. However, there is a critical issue about its vulnerability in shear. To this end, a total of six IMT slabs were tested in this study, where the magnitude of prestress, and presences of shear reinforcement and cast-in-place (CIP) topping concrete were considered as key experimental variables. An analytical method capable of estimating the shear strengths of IMT slabs with topping concrete as a composite prestressed member was suggested by using the transformed section approach combined with the dual potential capacity concept. The proposed model can identify the shear strength and failure mode, and a simplified model was also developed and verified for its better applicability to be easily used in practice.


ALSO AVAILABLE IN:

Electronic Structural Journal



  

Please enter this 5 digit unlock code on the web page.