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Home > Publications > International Concrete Abstracts Portal
Showing 1-5 of 4035 Abstracts search results
Document:
CI4705Attiogbe
Date:
May 1, 2025
Author(s):
Warren Green, David McDonald, John Kwong, and Christopher Lim
Publication:
Concrete International
Volume:
47
Issue:
5
Abstract:
The combined effects of structural loads and environmental exposure determine the performance of structures or structural components. Durability planning is a process of achieving durability through appropriate design, construction, and maintenance. As the authors demonstrate through case studies of projects completed in Australia, the central objective is to select the most cost-effective combination of materials to achieve the required design life.
CI4705ConcreteQA
This month’s Q&A discusses minimum requirements for performing, implementing, and documenting service life predictions on new construction projects per ACI CODE-365-24. It outlines the service life prediction process and provides information on the role and responsibilities of a service life engineer.
CI4705NewOfficers
The ACI Officers and Board of Direction Members for 2025-2026 were announced, including ACI President Maria Juenger, ACI Vice President Matthew R. Sherman, and four new Directors elected by the ACI membership. These designations took effect at the conclusion of the Spring 2025 ACI Board of Direction meeting.
CI4705NexInsights
NEx: An ACI Center of Excellence for Nonmetallic Building Materials held a full-day technical workshop on “Design of GFRP-Reinforced Slabs-on-Ground and Paving” at the ACI Concrete Convention in Toronto, ON, Canada, on March 31, 2025. In addition, NEx hosted an exclusive lunch for members, speakers, and industry leaders to connect.
SP365_01
March 1, 2025
Graeme J. Milligan, Maria Anna Polak and Cory Zurell
Symposium Papers
365
Due to the low lateral stiffness of slabs supported on columns alone reinforced concrete flat plates are typically combined with other structural elements, such as shearwalls. In these structures, the slab-column connections are designed to carry gravity loads only, and the shearwalls, which also carry gravity loads, are required to resist the lateral forces. Therefore, the slab-wall connections (SWCs) are essential for the adequate performance of both the gravity and lateral force resisting systems. However, the majority of punching shear research and design provisions have been focused on slab-column connections, even though punching failures around slab-wall connections have been observed experimentally. Empirical testing of slab-wall connections is difficult due to the required specimen size. This paper investigates the punching shear behaviour of interior slab-wall connections subjected to concentric vertical loading, and combined concentric vertical loading and uniaxial unbalanced moment using a plasticity-based nonlinear finite element model (FEM) in Abaqus. The FEM, developed to study the impact of column aspect ratio on punching shear, was calibrated considering seven isolated slab-column specimens. The analysis of isolated slab-wall connections demonstrates that punching failures can occur before one-way shear failures, although the connection capacity is much higher than the expected loads in most structures. Punching shear design methods for interior slab-wall connections subjected to gravity load only, developed from finite element analysis results, are developed and presented in the paper.
DOI:
10.14359/51746680
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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.
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