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Shear Behavior of Lightweight High-Performance Concrete Girders

Project Information

Project ID: 
FHWA-PROJ-06-0024
Project Status: 
Active
Start Date: 
Sunday, October 1, 2006
End Date: 
Thursday, December 31, 2015
FHWA Program: 
Infrastructure
FHWA Subprogram: 
Pavement and Materials
FHWA Activity: 
Ultra-High Performance Concrete (UHPC)
FHWA Topics: 
Research/Technologies--FHWA Research and Technology; Research/Technologies--Turner-Fairbank Highway Research Center (TFHRC); Roads and Bridges--Design; Roads and Bridges--Structures
FHWA Discipline: 
Design, Structures
TRB Subject Area: 
Bridges and other structures, Materials, Research

Contact Information

First Name: 
Benjamin
Last Name: 
Graybeal
Telephone: 
(202) 493-3122
Team: 
Bridge Engineering Team
Office:
Office of Infrastructure Research and Development
Office Code: 
HRDI-40

Project Details

Project Description: 

Recently, more emphasis has been placed on the use of lightweight or specified density concrete as a solution for several bridge applications. The properties of these materials result in applications that have lighter transportation loads, require smaller construction equipment, result in extended span ranges and reduced inertia forces. The American Association of State Highway and Transportation Officials specifications for designing with these materials have not been significantly updated since the 1960s. This work, along with the work of National Cooperative Highway Research Program Project 18-15, intends to update the specifications appropriately for the modern version of these materials.

Goals

This project will develop recommended specification revisions for shear design of lightweight high-performance concrete beams and girders in the American Association of State Highway and Transportation Officials (AASHTO) Load and Resistance Factor Design (LRFD) Bridge Design Specifications.

Deliverables

Deliverable Name: 
Lightweight Concrete: Shear Performance
Deliverable Type: 
Techbrief
Deliverable Description: 
Executive summary of results from research project, along with recommended revisions to the American Association of State Highway and Transportation Officials (AASHTO) Load and Resistance Factor Design (LRFD) Bridge Design Specification.