Computationally Informed Methodologies for Capturing the Effect of Intervening Structures During Truck Impact Events: Phase II [Technical Summary]

Salahat, Fahed H.; Jones, Christopher A.; Rasheed, Hayder A.

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Computationally Informed Methodologies for Capturing the Effect of Intervening Structures During Truck Impact Events: Phase II [Technical Summary]

2026-05-01
By Salahat, Fahed H. ; Jones, Christopher A. ; Rasheed, Hayder A.

File Language:

English

Details

Creators:

Salahat, Fahed H. ; Jones, Christopher A. ; Rasheed, Hayder A.
Corporate Creators:

Kansas State University Transportation Center
Corporate Contributors:

Kansas. Department of Transportation. Bureau of Materials and Research
Subject/TRT Terms:

Bridge Piers Bridges Design Finite Element Method Impact Loads Load And Resistance Factor Design Reinforced Concrete Specifications Trucks
Publication/ Report Number:

K-TRAN: KSU-21-7
Resource Type:

Brief
Geographical Coverage:

United States ; Kansas
Edition:

Technical Summary
Corporate Publisher:

Kansas. Department of Transportation. Bureau of Materials and Research
Abstract:

The primary objective of this research was to assess the performance of sub-standard RC barriers as protection for bridge piers against VCF and quantify their reduction of the equivalent static force (ESF) that piers must resist according to AASHTO specifications. This report describes current procedures to determine the transverse static capacity of RC barriers and proposes alternative, accurate methodologies. A matrix of crash scenarios is simulated in dynamic explicit analysis using the finite element software LS-DYNA to comprehensively encapsulate the behavior of sub-standard RC barriers. The investigated parameters include energy dissipation, velocity reduction, contact force absorption, and lateral displacement. This research also utilized a simulation matrix on a bridge pier that failed to withstand the ESF under the required AASHTO’s extreme load event behind a sub-standard barrier. A series of dynamic impact force time histories was used to extract the ESF and compare the resulting ESF to the AASHTO-required force, leading to a proposed reduction in the ESF due to the presence of sub-standard RC barriers.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:db8b4db835431871f9d72530ecb84561d626d3d6f7f5bef3a576822f7c63a7c14852251d199e75b032e466604c3326b252df527b9019a4e72a86ea2e84d409f2
Download URL:

https://rosap.ntl.bts.gov/view/dot/91808/dot_91808_DS1.pdf
File Type:

[PDF - 310.58 KB ]

File Language:

English

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