Effects of Barriers on Load Distribution in a Concrete Slab-Span Bridge

Kendall A. Hill; Benjamin Z. Dymond; Brock D. Hedegaard; Lauren E. Linderman

Effects of Barriers on Load Distribution in a Concrete Slab-Span Bridge

Kendall A. Hill, Benjamin Z. Dymond, Brock D. Hedegaard, Lauren E. Linderman

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Characterization of load distribution is useful for determining the load rating of bridges, and results in the literature have shown that the structure type and presence of secondary elements both impact this distribution. The focus of this study was to determine how the load distribution in a concrete slab-span bridge was affected by the presence of concrete barriers through finite element modeling and a truck live load test. There are minimal studies reported in the literature that quantify this phenomenon in slab-span bridges. A three-dimensional solid-element finite element model was used to determine the distribution when load was placed near and away from a barrier. Truck testing utilized strain gauges and displacement transducers to characterize the effects of a barrier on load distribution. Results indicated that the barrier had an impact on load distribution in concrete slab-span bridges. This impact could be quantified to determine the live load demand more accurately for use in load rating a concrete slab-span bridge.

Original language	English (US)
Title of host publication	Live Load Distribution on Concrete Bridges
Subtitle of host publication	Design, Evaluation, Construction, Innovation 2021
Editors	Nur Yazdani, Benjamin Z. Dymond
Publisher	American Concrete Institute
Pages	78-93
Number of pages	16
ISBN (Electronic)	9781641951777
State	Published - May 31 2022
Event	Live Load Distribution on Concrete Bridges: Design, Evaluation, Construction, Innovation 2021 - ACI Fall Concrete Convention 2021 - Virtual, Online Duration: Oct 17 2021 → Oct 21 2021

Publication series

Name	American Concrete Institute, ACI Special Publication
Volume	SP-352
ISSN (Print)	0193-2527

Conference

Conference	Live Load Distribution on Concrete Bridges: Design, Evaluation, Construction, Innovation 2021 - ACI Fall Concrete Convention 2021
City	Virtual, Online
Period	10/17/21 → 10/21/21

Bibliographical note

Funding Information:
The authors acknowledge the support of the Minnesota Department of Transportation. The opinions expressed herein represent those of the authors and not necessarily those of the sponsors.

Publisher Copyright:
© 2022 American Concrete Institute. All rights reserved.

Keywords

barrier
bridge
finite element model
instrumentation
load distribution
load rating
reinforced concrete
slab-span
truck test

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Hill, K. A., Dymond, B. Z., Hedegaard, B. D., & Linderman, L. E. (2022). Effects of Barriers on Load Distribution in a Concrete Slab-Span Bridge. In N. Yazdani, & B. Z. Dymond (Eds.), Live Load Distribution on Concrete Bridges: Design, Evaluation, Construction, Innovation 2021 (pp. 78-93). (American Concrete Institute, ACI Special Publication; Vol. SP-352). American Concrete Institute.

Effects of Barriers on Load Distribution in a Concrete Slab-Span Bridge. / Hill, Kendall A.; Dymond, Benjamin Z.; Hedegaard, Brock D. et al.
Live Load Distribution on Concrete Bridges: Design, Evaluation, Construction, Innovation 2021. ed. / Nur Yazdani; Benjamin Z. Dymond. American Concrete Institute, 2022. p. 78-93 (American Concrete Institute, ACI Special Publication; Vol. SP-352).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Hill, KA, Dymond, BZ, Hedegaard, BD & Linderman, LE 2022, Effects of Barriers on Load Distribution in a Concrete Slab-Span Bridge. in N Yazdani & BZ Dymond (eds), Live Load Distribution on Concrete Bridges: Design, Evaluation, Construction, Innovation 2021. American Concrete Institute, ACI Special Publication, vol. SP-352, American Concrete Institute, pp. 78-93, Live Load Distribution on Concrete Bridges: Design, Evaluation, Construction, Innovation 2021 - ACI Fall Concrete Convention 2021, Virtual, Online, 10/17/21.

Hill, Kendall A. ; Dymond, Benjamin Z. ; Hedegaard, Brock D. et al. / Effects of Barriers on Load Distribution in a Concrete Slab-Span Bridge. Live Load Distribution on Concrete Bridges: Design, Evaluation, Construction, Innovation 2021. editor / Nur Yazdani ; Benjamin Z. Dymond. American Concrete Institute, 2022. pp. 78-93 (American Concrete Institute, ACI Special Publication).

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Effects of Barriers on Load Distribution in a Concrete Slab-Span Bridge

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