Protecting Critical Civil Infrastructure Against Impact from Commercial Vehicles – Phase II

Linzell, Daniel G.; Fang, Chen; Alomari, Qusai Abdulkarim; University of Nebraska--Lincoln

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Protecting Critical Civil Infrastructure Against Impact from Commercial Vehicles – Phase II

2021-09-01
By Linzell, Daniel G. ; Fang, Chen ; Alomari, Qusai Abdulkarim

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English

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Creators:

Linzell, Daniel G. ; Fang, Chen ; Alomari, Qusai Abdulkarim

Linzell, Daniel G. ; Fang, Chen ; Alomari, Qusai Abdulkarim Less -
Corporate Creators:

University of Nebraska--Lincoln
Corporate Contributors:

University of Nebraska. Mid-America Transportation Center ; United States. Department of Transportation. University Transportation Centers (UTC) Program ; United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology

University of Nebraska. Mid-America Transportation Center ; United States. Department of Transportation. University Transportation Centers (UTC) Program ; United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology Less -
Subject/TRT Terms:

[+]

Blast Loads Bridge Design Bridge Foundations Commercial Vehicles Concrete Structures Fiberglass Foundation Soils Guidelines Highway Bridges Impact Loads Impact Tests Plastic Coatings Substructures Superstructures Temperature
Publication/ Report Number:

25-1121-0005-004-33
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Final Report July 2019 – September 2021
Corporate Publisher:

University of Nebraska. Mid-America Transportation Center
Abstract:

Pier columns could be under-designed for commercial vehicle impacts and additional events that could occur, such as blast. This research study focused on improving resiliency and robustness of bridge piers and pier columns when subjected to combined vehicle collision and air blast. To achieve this goal, a multi-column highway bridge pier and its supporting foundation was used as the prototypical supporting unit for the analytically focused study. Three-dimensional LS-DYNA numerical models were developed of single circular reinforced concrete (RC) columns and piers along with their supporting spread footings and piles. Collision loads were supplied from a modeled Ford F800 Single-Unit truck. Air blasts of varying magnitude were represented using an LS-DYNA Arbitrary Lagrangian-Eulerian approach. The model was validated against published RC structural element impact and blast tests. Developed models were used to investigate bridge column and pier response to vehicle collision and air blast. Parametric studies were conducted to analyze the effects of specific design parameters on performance and serviceability. Using these results, damage indices were developed by comparing residual axial load capacities of a damaged column to the column’s undamaged ultimate axial capacity. Analysis techniques were also studied and a simple performance-based design procedure proposed. Numerical models that examined the effectiveness with which different retrofit schemes, namely use of an FRP wrap or polyurea coating around the periphery of the columns, improved resistance to air blast and vehicle impact.
Format:

PDF
Funding:

69A3551747107
Collection(s):

University Transportation Centers
Main Document Checksum:

[+]

urn:sha256:e7c8076dbdf7e135f9061a4a490db75c62227bd0b31f0d5a0df72097a668d7d9
Download URL:

https://rosap.ntl.bts.gov/view/dot/74502/dot_74502_DS1.pdf
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No Additional Files

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Protecting Critical Civil Infrastructure Against Impact from Commercial Vehicles – Phase II

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