Studies / Reports – NCPP Bridge Preservation Partnerships

A Programmatic Approach to Long-Term Bridge Preventive Maintenance

2017-04-04

| Categories: Bridge Design/Const., Bridge Pres. Apps., New Technology, News, Studies / Reports, Treatments

State transportation agencies use cost-effective preventive maintenance (PM) programs to preserve existing roadway systems, slow down their deterioration, and improve their functional condition. Currently, the Kentucky Transportation Cabinet’s (KYTC’s) bridge inventory includes approximately 10,000 structures, and by 2018, most of these structures will have been in use for at least 50 years. Because there is insufficient funding available to…

American Society of Civil Engineers — Report on America’s Infrastructure

2017-03-24

| Categories: Bridge Design/Const., Bridge Pres. Apps., Data/Statistics, General News, Journals/Publications, Legislative / Political, New Technology, News, Pavement Design/Const., Pavement Pres. Apps., Studies / Reports

The American Society of Civil Engineers has given America’s Infrastructure an overall score of D+ in its 2017 Report. Roads and bridges were given scores of D and C+ respectively. Read the Full Report

Bridge Design Effort and Cost Estimation Models – Phase I

2017-01-17

| Categories: Bridge Design/Const., Bridge Pres. Apps., General News, New Technology, News, Studies / Reports

The Institute for Transportation at Iowa State University has released a report that introduces a model that aims to more accurately estimate design and cost efforts for bridges. Read the Report

Development of Guidelines for Transportation of Long Prestressed Concrete Girders

2017-01-17

| Categories: Bridge Design/Const., Bridge Pres. Apps., General News, New Technology, News, Studies / Reports

The Louisiana Department of Transportation and Development has released a report that investigates the behavior of two long prestressed concrete girders during lifting and transportation from the precast yard to the bridge site, with a particular focus on cracking concerns during transport. Read the Report

Evaluation of Shear Connectors in Composite Bridges

2017-01-16

| Categories: Bridge Design/Const., Bridge Pres. Apps., News, Studies / Reports

The New Zealand Transport Agency has released a report that reviews international experiments for shear connectors and the development of design equations in different national standards of composite bridges. Read the Report

Post-Extreme Event Damage Assessment and Response for Highway Bridges

2017-01-13

| Categories: Bridge Design/Const., Bridge Pres. Apps., General News, Journals/Publications, New Technology, News, Studies / Reports

TRB’s National Cooperative Highway Research Program (NCHRP) Synthesis 497: Post-Extreme Event Damage Assessment and Response for Highway Bridges reviews the procedures that state departments of transportation and two local authorities, New York City and Los Angeles County, use to assess the damage in bridges in response to extreme events and conduct emergency response activities. Extreme events include those…

Bridge Assessment for High Productivity Freight Vehicle Access: Guidelines on Processes and Procedures

2016-12-14

| Categories: Bridge Design/Const., Bridge Pres. Apps., General News, New Technology, News, Studies / Reports

Austroads has released a report that outlines a process for assessing road bridge capacity for High Productivity Freight Vehicle access to the road network. The report is available for no fee after logging onto the site. Read the Report

Underwater Noise Reduction of Marine Pile Driving Using a Double Pile: Vashon Ferry Terminal Test

2016-12-14

| Categories: Bridge Design/Const., Bridge Pres. Apps., General News, New Technology, News, Studies / Reports

The Washington State Department of Transportation has released a report that analyzes the underwater sound levels of marine pile driving when using a double-walled pile. Read the Report

Corrosion of Post-Tensioned Tendons with Deficient Grout

2016-12-01

| Categories: Bridge Design/Const., Bridge Pres. Apps., New Technology, News, Studies / Reports

The Florida Department of Transportation has released a report that identifies criteria of deficient grout properties that may cause active corrosion of strand in post-tensioned tendons. Read the Report

Final Report Bridge Design System Analysis and Modernization

2016-11-03

| Categories: Bridge Design/Const., Bridge Pres. Apps., New Technology, News, Studies / Reports

The Michigan Department of Transportation has released a report that documents, analyzes and proposes modernization options for the Bridge Design System. Read the Report

Updating HEC-18 Pier Scour Equations for Noncohesive Soils

2016-11-03

| Categories: Bridge Design/Const., Bridge Pres. Apps., Journals/Publications, New Technology, News, Studies / Reports

The U.S. Federal Highway Administration has released a report that determines if the coarse bed materials equation could be used for conditions beyond those under which it is currently limited. Read the Report

Economic Impact of Multi-Span, Prestressed Concrete Girder Bridges Designed as Simple Span versus Continuous Span

2016-10-26

| Categories: Bridge Design/Const., Bridge Pres. Apps., General News, New Technology, News, Studies / Reports

The Institute for Transportation at Iowa State University has released a report that compares the economic impact of designing pre-tensioned prestressed concrete beam bridges utilizing the continuity developed in the bridge deck versus the Iowa Department of Transportation’s method of utilizing standardized spans treated as simply supported. Read the Report

Investigation of Shear Distribution Factors in Prestressed Concrete Girder Bridges

2016-10-26

| Categories: Bridge Design/Const., Bridge Pres. Apps., General News, New Technology, News, Studies / Reports

The Minnesota Department of Transportation has released a report that investigates the accuracy of existing shear distribution factors, which are used to estimate bridge system live load effects on individual girders, and provide recommendations on shear distribution to be used in Minnesota. Read the Report

Effective Implementation of Ground Penetrating Radar for Condition Assessment and Monitoring: Phase 2

2016-10-21

| Categories: Bridge Design/Const., Bridge Pres. Apps., General News, New Technology, News, Studies / Reports

The Maryland Department of Transportation has released a summary document that describes the application of Ground Penetrating Radar research for assessing the condition of bridge decks. Read the Summary Document

Portland Cement Concrete Pavement Thickness Variation Versus Observed Pavement Distress

2016-10-21

| Categories: Bridge Design/Const., Bridge Pres. Apps., New Technology, News, Studies / Reports

The Minnesota Department of Transportation has released a report that analyzes thickness data and existing distresses for three highway projects in Minnesota. Read the Report

Using Building Information Modeling to Track and Assess the Structural Condition of Bridges

2016-10-04

| Categories: Bridge Design/Const., Bridge Pres. Apps., General News, New Technology, News, Studies / Reports

The Upper Great Plains Transportation Institute at North Dakota University has released a report that presents a new method to determine the damage location information of a bridge. Read the Report

Long-Term Bridge Performance Committee Letter Report: July 5, 2016

2016-09-13

| Categories: Bridge Design/Const., Bridge Pres. Apps., General News, New Technology, News, Studies / Reports

On July 5, 2016, TRB’s Long-Term Bridge Performance (LTBP) Committee sent its seventh letter report to Gregory Nadeau, administrator of the U.S. Federal Highway Administration (FHWA). The committee provides advice and assistance on the conduct of the LTBP program, which is designed to collect research-quality data on a large representative sample of in-service U.S. highway bridges and to…

Investigation of Premature Strip Seal Joint Failures and Recommendations for Assuring Proper Strip Seal Joint Installation: Bridge 5/104W

2016-09-08

| Categories: Bridge Design/Const., Bridge Pres. Apps., New Technology, News, Studies / Reports, Treatments

The Washington State Department of Transportation has released a summary of an investigation that was performed to identify the causes of premature failures of strip seal expansion joints that were installed on a bridge in Washington State. Read the Investigation Summary

Optimizing the Use of the Thermal Integrity System for Evaluating Auger-Cast Piles

2016-08-23

| Categories: Bridge Design/Const., Bridge Pres. Apps., General News, New Technology, News, Studies / Reports

The Florida Department of Transportation has released a report that evaluates various instrumentation plans and introduces alternative analysis methods specific to auger-cast piles. Read the Report

Implementation of the 2013 AASHTO Manual for Bridge Element Inspection

2016-08-23

| Categories: Bridge Design/Const., Bridge Pres. Apps., General News, Journals/Publications, Legislative / Political, New Technology, News, Studies / Reports

The Florida Department of Transportation has released a report that revises the existing methodology for computing the bridge health index (BHI). Read the Report

Development and Evaluation of a Dual Purpose Bridge Health Monitoring and Weigh-In-Motion System for a Steel Girder Bridge – Phase II

2016-08-10

| Categories: Bridge Design/Const., Bridge Pres. Apps., New Technology, News, Studies / Reports

The Connecticut Department of Transportation has released a report that explains a permanent dual purpose bridge weigh-in-motion and health monitoring system over an extended period of time. Read the Report

Dual Purpose Bridge Health Monitoring and Weigh-in-motion (BWIM) Phase I

2016-08-04

| Categories: Bridge Design/Const., Bridge Pres. Apps., General News, New Technology, News, Studies / Reports

The Connecticut Department of Transportation has released a report that establishes a single monitoring system comprised of sensors, data acquisition, and processing capabilities that can carry out long-term health monitoring of a highway bridge and bridge-weigh-in-motion system. Read the Report

Effectiveness of Exterior Beam Rotation Prevention Systems for Bridge Deck Construction

2016-07-28

| Categories: Bridge Design/Const., Bridge Pres. Apps., General News, New Technology, News, Studies / Reports

The Illinois Center for Transportation at the University of Illinois has released a report that evaluates current bracing systems by using field instrumentation, finite element analysis, and the Torsional Analysis Exterior Girders program—a program used by bridge designers to design bracing systems to prevent exterior girder rotation. Read the Report

Integral Abutment Bridges Under Thermal Loading: Numerical Simulations and Parametric Study

2016-07-20

| Categories: Bridge Design/Const., Bridge Pres. Apps., New Technology, News, Studies / Reports

The Illinois Center for Transportation at the University of Illinois has released a report that presents numerical simulations evaluating the behavior of Integral abutment bridges with composite steel I-girders subjected to temperature changes consistent with seasonal fluctuations. Read the Report

Bridge Decks: Mitigation of Cracking and Increased Durability

2016-07-15

| Categories: Bridge Design/Const., Bridge Pres. Apps., General News, New Technology, News, Studies / Reports

The Illinois Center for Transportation at the University of Illinois has released a report that explains the application of pre-soaked lightweight aggregates as a curing agent in concrete to reduce cracking due to drying shrinkage. Read the Report

Bridge Decks: Mitigation of Cracking and Increased Durability

2016-07-15

| Categories: Bridge Design/Const., Bridge Pres. Apps., New Technology, News, Studies / Reports

The Illinois Center for Transportation at the University of Illinois has released a report that explains the application of pre-soaked lightweight aggregates as a curing agent in concrete to reduce cracking due to drying shrinkage. Read the Report

Calibration of Region Specific Gates Pile Driving Formula for Load and Resistance Factor Design

2016-07-15

| Categories: Bridge Design/Const., Bridge Pres. Apps., General News, New Technology, News, Studies / Reports

The Louisiana Department of Transportation and Development has released a report that proposes new bridge pile driving formulas for pile capacity verification by using pile driving blow counts obtained at either end-of-initial driving or at the beginning-of-restrike. Read the Report

Precision Monitoring of Bridge Deck Curvature Change During Replacement

2016-07-12

| Categories: Bridge Design/Const., Bridge Pres. Apps., New Technology, News, Studies / Reports

The Maryland State Highway Administration has released a report that focuses on development and deployment of a system for monitoring vertical displacement in bridge decks and bridge spans with high precision wireless inclinometer sensors. Read the Report

Bidirectional-Ductile End Diaphragms for Seismic Performance and Substructure Protection

2016-07-06

| Categories: Bridge Design/Const., Bridge Pres. Apps., General News, Journals/Publications, New Technology, News, Studies / Reports

TRB’s Innovations Deserving Exploratory Analysis (IDEA) Highway Project 172: Bidirectional-Ductile End Diaphragms for Seismic Performance and Substructure Protection explores the applications of ductile diaphragms for use as a seismic-resistance solution for short and medium span steel bridges in all seismic regions. The research focused on applications for new bridge design, but the information could be applied to existing…

Investigation of the Impact of Dual-Lane Axle Spacing on Lateral Load Distribution

2016-06-30

| Categories: Bridge Design/Const., Bridge Pres. Apps., General News, New Technology, News, Studies / Reports

The Institute for Transportation at Iowa State University has released a report that investigates impacts of wheel-line spacing of dual-lane loads on the lateral load distribution on bridges by using finite element models. Read the Report

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