Extended Strip Model for slabs subjected to load combinations

Lantsoght, E.O.L.; van der Veen, C.; de Boer, A

doi:10.1016/j.engstruct.2017.05.012

Extended Strip Model for slabs subjected to load combinations

Title

Extended Strip Model for slabs subjected to load combinations

Author

Lantsoght, E.O.L. (TU Delft Steel & Composite Structures; Politecnico; Universidad San Francisco de Quito)
van der Veen, C. (TU Delft Steel & Composite Structures)
de Boer, A (Major Projects and Maintenance; Ministry of Infrastructure and the Environment)

Date

2017-08-15

Abstract

The loads that are used for the assessment of existing reinforced concrete slab bridges are the self-weight, superimposed loads, and distributed and concentrated live loads. As such, the shear capacity of reinforced concrete slabs under a combination of distributed and concentrated live loads is a topic of practical relevance. For slabs subjected to a single concentrated load, a plastic model for assessment exists: the Extended Strip Model, developed based on the Strip Model for concentric punching shear. A further adaptation of the model to assess slabs subjected to distributed and concentrated loads is presented in this paper. The proposed model is compared to experiments on slabs subjected to a single concentrated load and a line load. The conclusion of this comparison is that the Extended Strip Model results in a safe estimate of the maximum concentrated load on the slab, and that the method can be used for the assessment of existing bridges subjected to heavy truck loads.

Subject

Assessment
Extended Strip Model
Flexure
Live loads
Plasticity-based model
Punching
Reinforced concrete
Shear
Slab bridges

To reference this document use:

http://resolver.tudelft.nl/uuid:1162ca72-0569-48a1-aeb0-8cd7f901b9b8

DOI

https://doi.org/10.1016/j.engstruct.2017.05.012

Embargo date

2019-05-12

ISSN

0141-0296

Source

Engineering Structures, 145, 60-69