A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Eccentric punching strength of continuous flat slabs—Analysis of different experimental setups
This paper analyses the performance of the experimental setups to assess the punching strength of slab‐column connections in continuous flat slabs under vertical and horizontal loading. In the last years, several experimental campaigns have been performed to investigate the punching strength of slab‐column connections, but most of the experimental tests concerned isolated slab‐column connections. Among the few setups aimed at reproducing the eccentric punching failure in continuous flat slabs, the setup developed at the NOVA School of Science and Technology in Lisbon is considered in this paper. The performance of the Lisbon setup is assessed through nonlinear finite element analyses, calibrated on experimental data, by comparison with numerical results of a theoretical continuous setup. Then, the performance of the isolated setups, used in many researches and at the base of some international codes, is also evaluated through the same finite element model. Numerical analyses highlight that the setup developed in Lisbon could provide reliable ultimate rotations of continuous flat slab connections, but it underestimates the punching strength. Despite isolated setups lead to similar results when compared with the Lisbon setup, the latter seems to provide a better representation of a continuous slab‐column connection. The numerical analyses presented in this paper have been performed assuming monotonic lateral loading.
Eccentric punching strength of continuous flat slabs—Analysis of different experimental setups
This paper analyses the performance of the experimental setups to assess the punching strength of slab‐column connections in continuous flat slabs under vertical and horizontal loading. In the last years, several experimental campaigns have been performed to investigate the punching strength of slab‐column connections, but most of the experimental tests concerned isolated slab‐column connections. Among the few setups aimed at reproducing the eccentric punching failure in continuous flat slabs, the setup developed at the NOVA School of Science and Technology in Lisbon is considered in this paper. The performance of the Lisbon setup is assessed through nonlinear finite element analyses, calibrated on experimental data, by comparison with numerical results of a theoretical continuous setup. Then, the performance of the isolated setups, used in many researches and at the base of some international codes, is also evaluated through the same finite element model. Numerical analyses highlight that the setup developed in Lisbon could provide reliable ultimate rotations of continuous flat slab connections, but it underestimates the punching strength. Despite isolated setups lead to similar results when compared with the Lisbon setup, the latter seems to provide a better representation of a continuous slab‐column connection. The numerical analyses presented in this paper have been performed assuming monotonic lateral loading.
Eccentric punching strength of continuous flat slabs—Analysis of different experimental setups
Secci, Lorenzo (author) / Lapi, Massimo (author) / Teoni, Emanuele (author) / Pinho Ramos, Antonio (author) / Orlando, Maurizio (author)
Structural Concrete ; 22 ; 1183-1204
2021-04-01
22 pages
Article (Journal)
Electronic Resource
English
Flat Slabs in Eccentric Punching Shear: Experimental Database and Code Analysis
| DOAJ | 2022
Eccentric Punching on Edge Waffle Slabs
| TIBKAT | 2021
Eccentric Punching on Edge Waffle Slabs
| Springer Verlag | 2021
SFRC flat slabs punching behaviour - Experimental research
| British Library Online Contents | 2014