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Accession Number
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PB2011-100864
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Title
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Finite Element Analysis of Ultra-High Performance Concrete: Modeling Structural Performance of an AASHTO Type II Girder and a 2nd Generation Pi-Girder.
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Publication Date
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Oct 2010
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Media Count
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198p
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Personal Author
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B. A. Graybeal L. Chen
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Abstract
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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. This computational investigation focused on modeling the behaviors of existing UHPC structural components including a prestressed UHPC AASHTO Type II girder and a prestressed UHPC 2nd generation pi-girder. Both a concrete smeared cracking model and a concrete damaged plasticity model were tailored to model UHPC within a commercially available finite element analysis package. The concrete damaged plasticity model using three types of tension stiffening definitions can replicate both linear and nonlinear structural responses of both girders reasonably well. A set of UHPC constitutive properties were developed that facilitate the model replication of the local and global responses observed in the series of physical tests. The finite element analysis modeling techniques developed herein are intended to be applicable to other UHPC structural components.
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Keywords
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ABAQUS
Bridge design
Concrete damaged plasticity
Concrete smeared cracking
Durability
Dynamic structrual response
Federal Highway Administration(FHA)
Fiber-reinforced concrete
Finite Element Analysis(FEA)
Finite Element Method(FEM)
Flexural response
Flexural strength
Girders
High performance concrete
Highway bridges
Lateral pressure
Precast concrete
Prestressed concrete
Transverse flexural response
UHPC(Ultra-high performance concrete)
Ultra-high performance concrete
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Source Agency
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Federal Highway Administration
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NTIS Subject Category
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50C - Construction Equipment, Materials, & Supplies
89G - Construction Materials, Components, & Equipment
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Corporate Author
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Federal Highway Administration, McLean, VA. Office of Infrastructure Research and Development.
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Document Type
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Technical report
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Title Note
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Final Rept., 2008-2010.
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NTIS Issue Number
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1103
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Contract Number
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N/A
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