Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Investigating punching shear in slabs with unbalanced moments and openings
https://orcid.org/0000-0001-6769-640X
https://orcid.org/0000-0001-9417-9010
https://orcid.org/0000-0001-8613-9799
Highlights Nine full-scale tests conducted on interior slab-column connections with openings and unbalanced moments. Discussion on the impact of number and location of openings. Discussion on the impact of unbalanced moment orientation concerning the opening's location. Overview of design approaches that clarify the specifications of slab-column connections with openings.
Abstract The impact of openings and moment transfer on punching shear resistance was investigated by conducting tests on nine interior slab-column connections measuring 2,400 mm square and 150 mm thick. The connections were subjected to different unbalanced moment orientations with eccentricities of 250 mm and 500 mm, and without shear reinforcement. The openings, located on the faces of the rectangular supports, had widths of either 200 mm × 200 mm or 200 mm × 300 mm. The study analysed ultimate loads, vertical displacements, flexural reinforcement strains, and concrete strains. The experimental punching strength was compared to theoretical predictions according to ACI 318:19, fib MC 2010:13, for different levels of approximation and the 2nd generation of Eurocode 2 prEN 1992-1-1:21. Observations are provided regarding the code’s calculation for slabs with openings.
Investigating punching shear in slabs with unbalanced moments and openings
https://orcid.org/0000-0001-6769-640X
https://orcid.org/0000-0001-9417-9010
https://orcid.org/0000-0001-8613-9799
Highlights Nine full-scale tests conducted on interior slab-column connections with openings and unbalanced moments. Discussion on the impact of number and location of openings. Discussion on the impact of unbalanced moment orientation concerning the opening's location. Overview of design approaches that clarify the specifications of slab-column connections with openings.
Abstract The impact of openings and moment transfer on punching shear resistance was investigated by conducting tests on nine interior slab-column connections measuring 2,400 mm square and 150 mm thick. The connections were subjected to different unbalanced moment orientations with eccentricities of 250 mm and 500 mm, and without shear reinforcement. The openings, located on the faces of the rectangular supports, had widths of either 200 mm × 200 mm or 200 mm × 300 mm. The study analysed ultimate loads, vertical displacements, flexural reinforcement strains, and concrete strains. The experimental punching strength was compared to theoretical predictions according to ACI 318:19, fib MC 2010:13, for different levels of approximation and the 2nd generation of Eurocode 2 prEN 1992-1-1:21. Observations are provided regarding the code’s calculation for slabs with openings.
Investigating punching shear in slabs with unbalanced moments and openings
https://orcid.org/0000-0001-6769-640X
https://orcid.org/0000-0001-9417-9010
https://orcid.org/0000-0001-8613-9799
Highlights Nine full-scale tests conducted on interior slab-column connections with openings and unbalanced moments. Discussion on the impact of number and location of openings. Discussion on the impact of unbalanced moment orientation concerning the opening's location. Overview of design approaches that clarify the specifications of slab-column connections with openings.
Abstract The impact of openings and moment transfer on punching shear resistance was investigated by conducting tests on nine interior slab-column connections measuring 2,400 mm square and 150 mm thick. The connections were subjected to different unbalanced moment orientations with eccentricities of 250 mm and 500 mm, and without shear reinforcement. The openings, located on the faces of the rectangular supports, had widths of either 200 mm × 200 mm or 200 mm × 300 mm. The study analysed ultimate loads, vertical displacements, flexural reinforcement strains, and concrete strains. The experimental punching strength was compared to theoretical predictions according to ACI 318:19, fib MC 2010:13, for different levels of approximation and the 2nd generation of Eurocode 2 prEN 1992-1-1:21. Observations are provided regarding the code’s calculation for slabs with openings.
Investigating punching shear in slabs with unbalanced moments and openings
Santos, Júlia B. (Autor:in) / Souza, Raphael M. (Autor:in) / Melo, Guilherme S. (Autor:in) / Gomes, Ronaldo B. (Autor:in)
Engineering Structures ; 299
28.10.2023
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Tests on the punching resistance of flat slabs with unbalanced moments
| Elsevier | 2019
| DOAJ | 2024