Development of Non-Fracture Critical Steel Box Straddle Caps [Project Summary Report]

Helwig, Todd; Zecchin, Esteban; Williams, Emma; Liang, Chen; Engelhardt, Michael; Williamson, Eric; Hebdon, Matthew

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Development of Non-Fracture Critical Steel Box Straddle Caps [Project Summary Report]

2023-05-31
By Helwig, Todd ; Zecchin, Esteban ; Williams, Emma

File Language:

English

Details

Creators:

Helwig, Todd ; Zecchin, Esteban ; Williams, Emma ; Liang, Chen ; Engelhardt, Michael ; Williamson, Eric ; Hebdon, Matthew
Corporate Creators:

University of Texas at Austin. Center for Transportation Research
Corporate Contributors:

Texas Department of Transportation. Research and Technology Implementation Office ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:
Publication/ Report Number:

0-7012
Resource Type:

Brief
Geographical Coverage:

Texas;United States
Edition:

Project Summary Report
Corporate Publisher:

University of Texas at Austin. Center for Transportation Research
Abstract:

The research study included full-scale experimental testing and parametric finite element (FE) analyses, which resulted in a proposed methodology to estimate the flexural resistance of steel box caps following a potential fracture event. The work was conducted at the Ferguson Structural Engineering Laboratory at The University of Texas at Austin. The following major tasks were completed on this project: 1. Four full-scale specimens were tested to fracture by introducing an initial defect and cooling the steel to lower-shelf temperatures to induce brittle behavior: i. Baseline Specimen: a conventional all-welded box girder with no internal redundancy ii. Specimen A: an all-welded section with added post-tensioning bars anchored at component iii. Specimens B1 and B2: specimens with the bottom flange plate bolted to the rest of the section through flange connection plates, providing cross-boundary separation between these components.
Format:

PDF
Download URL:

https://rosap.ntl.bts.gov/view/dot/79617/dot_79617_DS1.pdf
File Type:

[PDF - 245.67 KB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:867e2ba38e4b02eeb558ce28e1907114d78251d09fcb24719d725c8cab6b9a89c12e0e95a61842b5f13caffafa710f67b217c7122cf53f0f77e14f512c167a04

File Language:

English

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