Finite Element Modelling of GFRP Dowel Bars Embedded in Slabs on Ground Resting on Simulated Soil Subbase

Muhammad Kalimur Rahman*, Mohammed Fasil, Mesfer M. Al-Zahrani

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Dowels are the most commonly used load transfer devices at joints in ground-supported slabs such as pavements and slabs-on-ground, to ensure a smooth ride across the joints and to minimize damage to concrete due to vehicular impact loads. Durability issues arising from corrosion and the consequent development of dowel looseness due to loss of material are some of the prevailing concerns when steel dowels are used. The past decade has seen rising popularity in the application of the corrosion-free glass fiber-reinforced polymer (GFRP) dowels at joints owing to its high tensile strength and ease of handling, and smooth exterior surface which negates the use of a bond-breaker mechanism. This paper presents the results of experimental and numerical works conducted to investigate the application of smaller diameter GFRP dowels at joints embedded in slabs-on-ground subjected to smaller infrequent loads. Based on the experimental results from four specimens of dimensions 1500 × 750 × 200 mm3 resting on an extruded polystyrene subbase simulating dense sand, with various types of dowels (GFRP 14 mm, GFRP 16 mm, GFRP 38 mm, and stainless-steel 12 mm), numerical models were developed and validated. Numerical parametric investigations were conducted to study the effect of parameters such as dowel spacing, concrete strength, slab width, slab thickness, modulus of elasticity of subbase material, and location of loading.

Original languageEnglish
Title of host publicationBuilding for the Future
Subtitle of host publicationDurable, Sustainable, Resilient - Proceedings of the Symposium 2023 - Volume 1
EditorsAlper Ilki, Derya Çavunt, Yavuz Selim Çavunt
PublisherSpringer Science and Business Media Deutschland GmbH
Pages946-956
Number of pages11
ISBN (Print)9783031325182
DOIs
StatePublished - 2023
EventInternational Symposium of the International Federation for Structural Concrete, fib Symposium 2023 - Istanbul, Turkey
Duration: 5 Jun 20237 Jun 2023

Publication series

NameLecture Notes in Civil Engineering
Volume349 LNCE
ISSN (Print)2366-2557
ISSN (Electronic)2366-2565

Conference

ConferenceInternational Symposium of the International Federation for Structural Concrete, fib Symposium 2023
Country/TerritoryTurkey
CityIstanbul
Period5/06/237/06/23

Bibliographical note

Publisher Copyright:
© 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.

Keywords

  • Dowels
  • Glass Fiber-Reinforced Polymer
  • Load Transfer Efficiency
  • Numerical Simulation

ASJC Scopus subject areas

  • Civil and Structural Engineering

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