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Development Of A Family Of Ultra High Performance Concrete Pi Girders
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Book Synopsis Development of a Family of Ultra-high Performance Concrete Pi-girders by :
Download or read book Development of a Family of Ultra-high Performance Concrete Pi-girders written by and published by . This book was released on 2014 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of a Family of Ultra-high Performance Concrete Pi-girders by : Gang Zhang
Download or read book Development of a Family of Ultra-high Performance Concrete Pi-girders written by Gang Zhang and published by . This book was released on 2013 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultra-high performance concrete (UHPC) is an advanced cementitious composite material which has been developed in recent decades. When compared to more conventional cement-based concrete materials, UHPC tends to exhibit superior properties such as increased durability, strength, and long-term stability. Past research and deployment efforts have demonstrated that the pi-girder concept is viable from the structural design, fabrication, and construction standpoints. This computational investigation focused on developing a series of finite element optimized sections of UHPC pi-girders to effectively utilize the superior mechanical properties of UHPC over longer span lengths. The research was performed using the previously calibrated concrete damage plasticity model to represent the elastic and plastic response of the UHPC in the numerical simulation. The new cross-sections were developed based on the 2nd generation pi-girder that was previously tested in the laboratory. The cross-sectional parameters that were modified include girder depth, bulb width and height, web thickness, and the number of strands in the bulb. The analysis evaluated the local transverse bending capacity of the deck, the global flexural and shear capacity, and the deflection of the girder. Four cross sections with depths between 35 and 47 inches facilitating spans up to 135 feet are presented.
Book Synopsis Structural behavior of a prototype UHPC pi-girder by : Benjamin A. Graybeal
Download or read book Structural behavior of a prototype UHPC pi-girder written by Benjamin A. Graybeal and published by . This book was released on 2009 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document is a technical summary of the unpublished Federal Highway Administration report, Structural Behavior of a Prototype Ultra High Performance Concrete Pi Girder, available only through the National Technical Information Service (NTIS). NTIS Accession No. of the report covered in this TechBrief: PB2009 115495. This TechBrief highlights the results of a research program that evaluated an ultra high performance concrete (UHPC) pi girder cross section prototype developed for use in short and medium span highway bridge applications. UHPC is an advanced cementitious composite material which has been developed in recent decades. When compared to more conventional concrete materials, UHPC tends to exhibit superior properties such as exceptional durability, high compressive strength, usable tensile strength, and long term stability. This experimental investigation focused on the structural behavior of a newly developed highway bridge girder cross section, the pi girder. This girder was developed and optimized to exploit the advanced mechanical and durability properties of UHPC. Structural testing was completed on girders to investigate their flexural response, shear response, transverse flexural response, and lateral load distribution capabilities. Through this work, topics related to the design and fabrication of the pi girder were also addressed.
Book Synopsis Structural behavior of a 2nd generation UHPC pi-girder by : Benjamin A. Graybeal
Download or read book Structural behavior of a 2nd generation UHPC pi-girder written by Benjamin A. Graybeal and published by . This book was released on 2009 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: This TechBrief highlights the results of a research program that evaluated a 2nd generation ultra high performance concrete (UHPC) pi girder cross section developed for use in short- and medium span highway bridge applications. UHPC is an advanced cementitious composite material which has been developed in recent decades. Compared to more conventional concrete materials, UHPC tends to exhibit superior properties such as exceptional durability, high compressive strength, usable tensile strength, and long term stability.
Book Synopsis Model-based Design of a Ultra High Performance Concrete Prototype Highway Bridge Girder by : Melvin Soh
Download or read book Model-based Design of a Ultra High Performance Concrete Prototype Highway Bridge Girder written by Melvin Soh and published by . This book was released on 2003 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Model-based Optimization of Ultra High Performance Concrete Highway Bridge Girders by : Hesson Park
Download or read book Model-based Optimization of Ultra High Performance Concrete Highway Bridge Girders written by Hesson Park and published by . This book was released on 2003 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Finite element analysis of UHPC by :
Download or read book Finite element analysis of UHPC written by and published by . This book was released on 2010 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Focus written by and published by . This book was released on 2010 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Design and Comparative Flexural Analysis of Prestressed Bridge Girders Using High Performance and Locally Developed Ultra-high Performance Concretes by : Mark P. Manning
Download or read book Design and Comparative Flexural Analysis of Prestressed Bridge Girders Using High Performance and Locally Developed Ultra-high Performance Concretes written by Mark P. Manning and published by . This book was released on 2015 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultra-high performance concrete (UHPC) is an innovative material that provides exceptional mechanical and durability properties and differs significantly from conventional concretes. Exhibiting high compressive strengths, improved environmental resistance, and increased tensile strengths and post-cracking capacity from fiber reinforcement, UHPC offers substantial advantages to a variety of structural applications by providing smaller, lighter structural members with increased design life and reduced lifecycle maintenance. Even so, widespread implementation of this unique material has been slow, particularly in the US where standardized design procedures have yet to be developed and/or adopted. Recent research at New Mexico State University (NMSU) has led to the development of unique UHPC mixture proportions. Utilizing constituents typical of precast production and primarily local to New Mexico, as well as high strength steel fiber reinforcement, these mixture proportions exhibit the advance characteristics typical of UHPC. Providing an economic alternative to commercially available products, experimental testing is required prior to implementation in local design to validate the properties and behavior of this specific UHPC when applied to structural members. This research focused on the design, production, and flexural testing of full-scale prestressed UHPC girders. Based on replacement designs of a structurally deficient local bridge superstructure, two full-scale prestressed channel girders were designed using Conspan® superstructure design software according to 2012 American Association of State Highway and Transportation Officals (AASHTO) Load Resistance Factor Design (LRFD) Bridge Design Specifications. One specimen was designed using conventional high performance concrete (HPC) typical of current New Mexico bridge design, and the second section optimized for use of the locally developed UHPC presented in this thesis. The full-scale specimens were fabricated at a local precast plant, using previously developed batching and curing procedures which were continued to be evaluated for efficiency and economy. This procedure aided in familiarizing precasters with the production of UHPC and helps to promote further implementation of UHPC in local production and design. The completed specimens were then tested in longitudinal four-point bending and transverse three-point bending to investigate flexural behavior and performance. Through comparative analyses of the full-scale prestressed specimens, evidence of the advanced characteristics and performance of UHPC versus conventional HPC are provided. Additional comparision of measured properties and behavior versus design values and predictions, recommendations are made for the incorporation of UHPC design provisions in AASHTO LRFD Bridge Design Specifications.
Book Synopsis Application of Ultra-high Performance Concrete to Bridge Girders by : Maher K. Tadros
Download or read book Application of Ultra-high Performance Concrete to Bridge Girders written by Maher K. Tadros and published by . This book was released on 2009 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Instrumentation and Monitoring of High Performance Concrete Prestressed Bridge Girders by : Vellore S. Gopalaratnam
Download or read book Instrumentation and Monitoring of High Performance Concrete Prestressed Bridge Girders written by Vellore S. Gopalaratnam and published by . This book was released on 2001 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High Strength/high Performance Concrete for Precast Prestressed Bridge Girders in Georgia by : Lawrence F. Kahn
Download or read book High Strength/high Performance Concrete for Precast Prestressed Bridge Girders in Georgia written by Lawrence F. Kahn and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ultra-high Performance Concrete for Precast Prestressed Bridge Girders by : Victor Garas
Download or read book Ultra-high Performance Concrete for Precast Prestressed Bridge Girders written by Victor Garas and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Shear and Shear Friction of Ultra-high Performance Concrete Bridge Girders by : Charles Kennan Crane
Download or read book Shear and Shear Friction of Ultra-high Performance Concrete Bridge Girders written by Charles Kennan Crane and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultra-High Performance Concrete (UHPC) is a new class of concrete characterized by no coarse aggregate, steel fiber reinforcement, low w/c, low permeability, compressive strength exceeding 29,000 psi (200 MPa), tensile strength ranging from 1,200 to 2,500 psi (8 to 17 MPa), and very high toughness. These properties make prestressed precast UHPC bridge girders a very attractive replacement material for steel bridge girders, particularly when site demands require a comparable beam depth to steel and a 100+ year life span is desired.
Book Synopsis Development of a high performance substructure system for prestressed concrete girder highway bridges by : Robert Wesley Barnes
Download or read book Development of a high performance substructure system for prestressed concrete girder highway bridges written by Robert Wesley Barnes and published by . This book was released on 1996 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Behavioral Study of Ultra High Performance Concrete Girders by : Sameer Sayed
Download or read book Behavioral Study of Ultra High Performance Concrete Girders written by Sameer Sayed and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ultra High Performance Concrete by : Ekkehard Fehling
Download or read book Ultra High Performance Concrete written by Ekkehard Fehling and published by kassel university press GmbH. This book was released on 2008-01-01 with total page 922 pages. Available in PDF, EPUB and Kindle. Book excerpt: