Project 3.07: Development of general guidelines related to the effects of factors such asthe bridge span range, range of pile length, roadway profile grade,and skew angle range on integral abutment bridges (IABs)

Development of General Guidelines Related to the Effects of Factors Such as the Bridge Span Range, Range of Pile Length, Roadway Profile Grade, and Skew Angle Range on Integral Abutment Bridges (IABs)

Project 3.7

Project Summary

The overall objective of this research is to improve the guidelines for the modeling, design, and construction of integral abutment bridges (IABs). Based on import from the DOTs the following topics were considered for the study: (1) a study of the effect of skew angle and other factors on the distribution of forces between superstructure and substructure; (2) a study of the effect of the roadway profile grade on the substructure; and (3) a study of the constructability of HP piles supported on a site with shallow bedrock. Year 3 The focus of the third year of this ongoing research has been: (a)To verify the findings of the analytical study in Years 1 and 2 of skew IABs. This is being done by means of a parametric study using a full three dimensional finite element model of a sample single span skew IAB, varying parameters such as the skew angle, the ratio of the length to the width of the bridge, and the
stiffness parameters of substructure; (b) To provide enhanced guidelines for the finite-element modeling and the assessment of the impact of modeling techniques on the accuracy of the analysis results for skew and non-skew IABs. Input from the DOTs and from industry will be taken into consideration in the developing of these guidelines.

Principal Investigator

Dr. Susan Faraji


University of Massachusetts Lowell

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Office of the Assistant Secretary for Research and Technology, University Transportation Centers Program, Department of Transportation, University of Massachusetts Lowell, Vermont Agency of Transportation

Implementation of Research Outcomes:

This project is in its initial research phase. Implementation of research outcomes will be reported upon completion of the research outputs.

Impacts and Benefits of Implementation:

This project is in its research phase. Impacts and benefits of the research will be reported after the implementation phase.

Printable Project Information Sheet

March 2019 Semi-Annual Progress Report

June 2019 Bi-Monthly Progress Report

July 2019 Bi-Monthly Progress Report

September 2019 Semi-Annual Progress Report

December 2019 Quarterly Progress Report

March 2020 Quarterly Progress Report

June 2020 Quarterly Progress Report

September 2020 Quarterly Progress Report

December 2020 Quarterly Progress Report

March 2021 Quarterly Progress Report

June 2021 Quarterly Progress Report

September 2021 Quarterly Progress Report

December 2021 Quarterly Progress Report

March 2022 Quarterly Progress Report

June 2022 Quarterly Progress Report

September 2022 Quarterly Progress Report