XTRACT_Fall2012 Manual
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Transcript of XTRACT_Fall2012 Manual
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XTRACT Cross Sectional Analysis of Structural Components
Tutorial CIE 525 Concrete Structures
September 11, 2012
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About the XTRACT Software
Created by Dr. Charles Chadwell at UC Berkeley
Original name: UCFyber
Acquired by Imbsen Software Systems in 2001
Renamed to: XTRACT
XTRACT is a general cross-sectional analysis software for analysis of any section shape and material subjected to any force-based loading
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Moment-Curvature Analysis of a Beam Section Using XTRACT
15
22
1.5 concrete cover
#5 ties spaced @ 4 on center
#9 main reinforcing bars
n4
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1. Create New Project
2. Cross Section and Beam Core Details
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3. Geometry
4. Materials
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Typical values for the crushing and spalling strain for unconfined concrete are 0.003 and 0.006, respectively (ACI 318-11 R10.2.3).
Failure Strain If analyzing a section where cover spalling is not to control the termination of the analysis, enter a large number in this text field (e.g. 1.0 - strain of 100%). If analyzing a cross section where computation should terminate when the cover spalls, enter the crushing or spalling strain in this text field.
Unconfined Concrete Model for Concrete Cover
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Mander Confined Concrete Model for Beam Core
Note: Typically, to go beyond a 0.02 strain for confined concrete, the details and construction quality need to be carefully controlled.
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Longitudinal Steel (Parabolic Strain Hardening Steel Model)
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5. Create Section
Unconfined Concrete Cover Model
Confined Core Model
Shape Boundaries
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6. Copying and Modifying the Section
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7. Loading and Analysis
XTRACT analysis types: -Moment Curvature, Axial -Force-Moment Interaction -Capacity Orbit (moment-moment interaction)
Moment Curvature Analysis
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7. Analysis (Rebar Strain Hardening Model)
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7. Analysis (Elasto-Plastic Rebar Model)
Add:
a.) MATERIALS Bilinear Steel Model
b.) New Section from Template