Title:
Plastic Model for Asymmetrically Loaded Reinforced Concrete Slabs
Author(s):
Eva O. L. Lantsoght, Cor van der Veen, and Ane de Boer
Publication:
Symposium Paper
Volume:
321
Issue:
Appears on pages(s):
1.1-1.20
Keywords:
asymmetrically loaded slabs; extended strip model; flexure; one-way slabs; plasticity; punching; reinforced concrete slabs; shear; symmetrically loaded slabs.
DOI:
10.14359/51701188
Date:
9/29/2017
Abstract:
Most methods for the design and analysis of reinforced concrete slabs for punching are based on experiments
on slab-column connections, reflecting the situation in building slabs. Slab-column connections with unbalanced
moments have also been studied in the past. Experiments indicate that the accuracy of models for asymmetrically
loaded slabs is lower than for symmetrically loaded slabs. In this paper, the difference in accuracy between test
predictions for symmetrically and asymmetrically loaded slabs is tackled. A plastic model, the Extended Strip Model,
is proposed. The results of maximum loads according to this model are compared to experimental results of
symmetrically and asymmetrically loaded slabs. The comparison between the proposed Extended Strip Model and the
experimental results shows that the model has a consistent performance for both symmetrically and asymmetrically
loaded slabs. Moreover, the model has as an advantage that it combines the failure modes of flexure, shear and
punching. The proposed model can be used for the analysis of slabs. In particular, it can be used for the assessment of
existing slab bridges subjected to concentrated live loads.