Modelling punching shear failure under eccentric
loading by means of nonlinear joint elements
loading by means of nonlinear joint elements
File(s)
Accepted version
Author(s)
Lu, Chunrong
Vollum, robert
Macorini, lorenzo
Type
Conference Paper
Abstract
Flat slabs can fail in either flexure or punching shear. Punching failure is undesirable since it occurs suddenly without warning and can lead to progressive collapse. The paper describes a novel Joint shell Punching Model (JSPM), which models punching shear failure by combining nonlinear joint elements with reinforced concrete (RC) shell elements. The joint shear resistance is determined using the Critical Shear crack Theory as implemented in the next generation of Eurocode 2. The novelty of the approach is that the softening response of the joints is related to the joint shear displacement rather than the relative slab-column rotation as done in the classic JSPM. The method is validated for a series of test specimens from the literature. The proposed method is intended for modelling punching shear failure in whole building models subject to gravity and lateral loading.
Date Issued
2025-06-16
Date Acceptance
2025-05-19
Citation
Concrete structures: extend lifetime, limit impacts, 2025
ISSN
2617-4820
Publisher
fib International
Journal / Book Title
Concrete structures: extend lifetime, limit impacts
Copyright Statement
© 2025 The Author(s) published fib International.
Source
2025 fib International Symposium
Publication Status
Published
Start Date
2025-06-16
Finish Date
2025-06-18
Coverage Spatial
Antibes, France