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Home > Publications > International Concrete Abstracts Portal
Showing 1-5 of 85 Abstracts search results
Document:
CI4608Weilacher
Date:
August 1, 2024
Author(s):
Robert M. Weilacher, Jesse Fortner, and Todd Hamby
Publication:
Concrete International
Volume:
46
Issue:
8
Abstract:
The FORTH Atlanta social club and hotel was designed with a concrete structural diagrid on the outside of the building. The columns were to be placed outboard of the slab edge, the corners at the top and bottom needed to “fold” inward to emphasize the three-dimensional form of the structure, and the flying beam at the roof perimeter was designed to cap off the diagrid.
CI4607Reigstad
July 1, 2024
Gordon H. Reigstad, Jason G. Reigstad, and Jared M. Reigstad
7
The PS=Ø system allows engineers to design post-tensioned (PT) and reinforced concrete members with more restraint releases and without the construction schedule delays of traditional pour strips. With or without temporary PT stressing strips, PS=Ø couplers can be used as restraint relief details in slab-to-slab, slab-to-wall, and beam-to-beam joints.
CI4606Q&A
June 3, 2024
6
This month's Q&A focuses on requirements for checking flatness of suspended slabs. It discusses the time limit for measuring floor flatness after finishing, compliance requirements for the manual straightedge method, minimum number of samples, and sample distribution, as well as possible remedies for noncompliance.
CI4506Q&A
June 1, 2023
Pericles C. Stivaros
45
We are in the process of designing shoring and reshoring schedules for the construction of a high-rise flat-plate type reinforced concrete building on a tight schedule. Does ACI have guidelines and/or recommendations for construction procedures that can help us meet the fast-track project requirements?
SP357_05
April 1, 2023
Simone Ravasini, Francesca Vecchi, Beatrice Belletti, and Nicolo Bonati
Symposium Papers
357
During an extreme event occurring on a reinforced concrete structure, characterized by the loss of a load-bearing element, the remaining resisting members may develop alternate load paths to resist gravity loads. However, it is recognized that reinforced concrete flat slabs are prone to punching shear failure. This issue is particularly relevant for existing reinforced concrete structures where creep, shrinkage, and corrosion effects due to environmental conditions play a fundamental role before the occurrence of the extreme event. In this paper, nonlinear pushdown and dynamic analyses were performed on an existing continuous reinforced concrete flat slab to investigate the structural response in the case of an interior column loss. Firstly, the flexural and membrane action resisting contributions were in-deeply analyzed. Secondly, the crucial effects of creep, shrinkage and corrosion on the dynamic response and punching shear resistance of the system were critically evaluated. Finally, useful insights for the structural robustness assessment of existing RC structures subjected to material deterioration were provided.
DOI:
10.14359/51738761
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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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