Lundi, 17 Janvier, 2022 - 15:30
The ultimate objective of this project was to determine the structural performance of the dynamic message sign (DMS) bonded with chemical adhesive in terms of ultimate strength and fatigue strength. To achieve this objective, this project first investigated the effects of various parameters (i.e., conditioning humidity and conditioning temperature) on tensile,...
Mardi, 23 Novembre, 2021 - 20:30
These Professional Practice Guidelines were developed by Engineers and Geoscientists British Columbia to guide professional practice related to seismic assessment and seismic design of Dikes in British Columbia (BC). This document provides guidance on professional practice to Engineering Professionals who perform seismic assessment and seismic design of...
Lundi, 14 Juin, 2021 - 15:45
The roughness experienced at bridge approaches and departures, generally termed the bump at the end of the bridge (BEB), has been identified as one of the most prominent issues in the transportation industry. The BEB is usually detected qualitatively based on road user feedback, with maintenance strategies subsequently implemented to improve ride quality. The...
Lundi, 12 Avril, 2021 - 18:15
Bridge load rating assesses the safe live load carrying capacity of an existing or newly designed structure. In addition to load rating with previously defined standard load rating vehicles, the Federal Highway Administration issued additional guidance to states related to rating requirements for all the bridges with respect to specialized hauling vehicles and...
Lundi, 22 Mars, 2021 - 15:00
A study was undertaken to investigate the source of the Ohio DOT culvert outlet protection design methodology and to compare this method with other State DOTs and FHWA methodologies. The original source of the Ohio DOT methodology was long thought to be a study conducted by The University of Cincinnati (Laushey, 1966). However, a meaningful...
Lundi, 22 Mars, 2021 - 15:00
Application of exterior coatings and membrane waterproofing on precast reinforced concrete box culverts, three-sided flat-topped culverts, and precast reinforced concrete arch and round sections is required by Ohio Department of Transportation (ODOT). Sealing and waterproofing limit the intrusion of ground water through the top of the joint and it protects the...
Lundi, 1 Mars, 2021 - 15:45
This report presents a wave method to be used for the structural identification and damage detection of structural components in bridges, e.g., bridge piers. This method has proven to be promising when applied to real structures and large amplitude responses in buildings (e.g., mid-rise and high-rise buildings). This study is the first application of the method...
Lundi, 1 Février, 2021 - 16:00
This report provides recommendations for integrating both nondestructive evaluation (NDE) data and field data from structural health monitoring (SHM) to obtain load ratings that reliably represent a bridge's load-carrying performance. Modern NDE techniques, which provide accurate location and characterization of deteriorations, enable more reliable...
Lundi, 1 Février, 2021 - 15:45
Many Minnesota bridges have older barriers or parapets that met the design code at the time of construction in the 1950s. Many of these bridge barriers no longer meet current strength and performance requirements of NCHRP Report 350 or the Manual for Assessing Safety Hardware (MASH). As the Minnesota Department of Transportation (MnDOT) begins to rehabilitate...
Lundi, 14 Décembre, 2020 - 16:15
The Kentucky Transportation Cabinet (KYTC) maintains over two hundred steel bridges constructed with types of steel which are unknown. Kentucky Transportation Center (KTC) researchers have developed a procedure for determining steel tensile properties (0.2% yield strength and ultimate tensile strength) which can be used to help identify unknown steels. The...
Lundi, 7 Décembre, 2020 - 18:30
The Kentucky Transportation Cabinet (KYTC) maintains over two hundred steel bridges constructed with types of steel which are unknown. Kentucky Transportation Center (KTC) researchers have developed a procedure for determining steel tensile properties (0.2% yield strength and ultimate tensile strength) which can be used to help identify unknown steels. The...
Lundi, 20 Juillet, 2020 - 13:45
Dynamic Messaging Signs (DMS) and Rural Intersection Conflict Warning Signs (RICWS) are roadside signs that feature much larger and heavier signs than are typically placed on their respective support systems. The excess weight and size of these signs, in conjunction with their breakaway support systems, introduces vibration problems not seen in the past. The...
