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Author: joseph main
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1. Robustness Assessment of RC Frame Buildings under Column Loss Scenarios
Published: 4/3/2014
Authors: Yihai Bao, Joseph A Main, Hai Sang Lew, Fahim Sadek
Abstract: A computational assessment of the robustness of reinforced concrete (RC) building structures under column loss scenarios is presented. A reduced-order modeling approach is presented for three-dimensional RC framing systems, including the floor slab, ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915189

2. Robustness of Precast Concrete Frames: Experimental and Computational Studies
Published: 4/3/2014
Authors: Joseph A Main, Yihai Bao, Hai Sang Lew, Fahim Sadek
Abstract: This paper describes both full-scale testing and detailed finite-element modeling of a precast concrete moment-frame assembly extracted from the perimeter moment frame of a 10-story prototype building. The assembly comprises two beam spans and three ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915219

3. Modeling of moment connections for structural fire analyses
Published: 3/25/2014
Authors: Mina Samir Seif, Therese P McAllister, Joseph A Main, William E Luecke
Abstract: Performance-based methodologies to evaluate the fire performance of structures are needed to move beyond the prescriptive procedures presently in use, which cannot be used to determine actual structural performance in fire. Analytical methods are nee ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915309

4. Composite Floor Systems under Column Loss: Collapse Resistance and Tie Force Requirements
Published: 2/4/2014
Author: Joseph A Main
Abstract: This paper presents a computational assessment of the performance of steel gravity framing systems with single-plate shear connections and composite floor slabs under column loss scenarios. The computational assessment uses a reduced modeling approac ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912975

5. A Simple Method to Enhance Catenary Action Development in Beams of RC Frame Structures
Published: 12/1/2013
Authors: Yihai Bao, Hai Sang Lew, Fahim Sadek, Joseph A Main
Abstract: A simple debonding technique is proposed to reduce or eliminate strain localization in reinforcing bars in the region of wide flexural cracks in RC beams, and as a result enhance the resistance of RC buildings to disproportionate collapse. In this st ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914051

6. Structural Design for Disaster Resilience
Published: 10/28/2013
Authors: Fahim Sadek, Joseph A Main, John L Gross, Therese P McAllister
Abstract: This paper presents a brief overview of research at the National Institute of Standards and Technology (NIST) on disaster resilience of buildings, infrastructure, and communities, including component programs and projects. NIST‰s efforts aim at deve ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914256

7. Modeling and Analysis of Single-Plate Shear Connections Under Column Loss
Published: 5/8/2013
Authors: Joseph A Main, Fahim Sadek
Abstract: This paper presents a computational assessment of the behavior of single-plate shear (,shear tabŠ) connections in gravity frames under column loss scenarios. Two-span beam assemblies are considered under pushdown loading of the unsupported center col ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912425

8. Robustness of Prototype Steel Frame Buildings against Column Loss: Assessment and Comparisons
Published: 5/2/2013
Authors: Joseph A Main, Judy Liu
Abstract: This paper considers the robustness of prototype 10-story steel moment-frame and braced-frame buildings. Reduced modeling approaches are presented for steel moment-frame and braced-frame buildings with composite floor slabs, and these approaches are ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913183

9. Performance of Steel Shear Tab Connections at Elevated Temperatures
Published: 4/16/2013
Authors: Mina Samir Seif, Joseph A Main, Therese P McAllister
Abstract: At the present time, there is a lack of understanding of the performance of structures as complete systems under extreme loading conditions such as realistic, uncontrolled fires. Current specifications for the design of steel structures in the U.S. d ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913531

10. Robustness of Steel Gravity Frame Systems with Single-Plate Shear Connections
Series: Technical Note (NIST TN)
Report Number: 1749
Published: 2/27/2013
Authors: Joseph A Main, Fahim Sadek
Abstract: This report presents a computational assessment of the performance of steel gravity framing systems with single-plate shear (,shear tabŠ) connections and composite floor slabs under column loss scenarios. The computational assessment uses a reduced m ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911309



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