Modeling Progressive Collapse by Plastic Analysis Andrew Coughlin Ashutosh Srivastava Graduate Research Assistant Graduate Research Assistant The Pennsylvania State University The Pennsylvania State University Progressive Collapse Resistance Competition (PCRC) ASCE Structures Congress April 25, 2008 Vancouver, BC
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Modeling Progressive Collapse by Plastic Analysis Andrew CoughlinAshutosh SrivastavaGraduate Research AssistantThe Pennsylvania State University Progressive.
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Modeling Progressive Collapse by Plastic Analysis
Andrew Coughlin Ashutosh SrivastavaGraduate Research Assistant Graduate Research AssistantThe Pennsylvania State University The Pennsylvania State University
Progressive Collapse Resistance Competition (PCRC)ASCE Structures CongressApril 25, 2008Vancouver, BC
Motivation
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Problem
Dynamic Testing
Static Testing
Approach
Cross Section Fiber Analysis
XTRACTTM
Nonlinear Pushover Analysis
CAPPTM
Screenshots from XTRACTTM and CAPPTM, a collaborative effort between Imbsen and Associates and Charles Chadwell, Ph.D., P.E.
Outline Assumptions
Cross Sectional Fiber Analysis
Nonlinear Pushover Analysis
Results
Discussion
Assumptions
Similitude: 1/8 scale model 1/8th all lengths 1/64th all forces Same stress
Plastic hinge length d/2 Axial deflections not considered Fixed support conditions
Outline Assumptions
Cross Sectional Fiber Analysis
Nonlinear Pushover Analysis
Results
Discussion
Cross Sectional Fiber Analysis
Material Models
Mander, J.B., Priestley, M. J. N., "Observed Stress-Strain Behavior of Confined Concrete", Journal of Structural Engineering, ASCE, Vol. 114, No. 8, August 1988, pp. 1827-1849