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Displaying records 21 to 30 of 76 records.
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21. Database-Assisted Estimates of Ultimate Capacities of Low-Rise Building Frames Under Wind Loads
Published: 1/1/2001
Authors: S Jang, L L Lu, Fahim Sadek, Emil Simiu
Abstract: This paper is a derivative of G2001-1392, Database-Assisted Wind Load Capacity Estimates for Low-Rise Steel Frames, by Jang, S., et al., intended for publication in the Journal of Structural Engineering.The original paper's abstract was:A comparative ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860357

22. Database-Assisted Wind Load Capacity Estimates for Low-Rise Steel Frames
Published: 12/1/2002
Authors: S Jang, L L Lu, Fahim Sadek, Emil Simiu
Abstract: A comparative study is presented of the estimated wind load capacities of low-rise steel building frames based on loading patterns (magnitude and distribution) established from aerodynamic databases on the one hand, and on patterns specified in the A ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860331

23. Design Procedures for Structures with Supplemental Dampers
Published: 4/1/2001
Authors: Fahim Sadek, Michael A Riley
Abstract: Passive energy dissipation devices are used to reduce the damage from earthquakes by absorbing a portion of the earthquake-induced energy in structures. Wide acceptance of these devices in structures will depend on the availability of simplified met ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860299

24. Development of 3D Models of Steel Moment-Frame Buildings for Assessment of Robustness and Progressive Collapse Vulnerability
Published: 4/30/2009
Authors: Joseph A Main, Fahim Sadek
Abstract: Several prototype steel moment-frame buildings have been designed for the purpose of assessing their reserve capacity and vulnerability to progressive collapse. Designs were developed for both seismic and non-seismic regions. This paper summarizes th ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901462

25. Development of Database-Assisted Design for Wind Loads: Current and Future Research
Published: Date unknown
Authors: Emil Simiu, Fahim Sadek, S M Diniz, Michael A Riley, S Jang, L W Lu
Abstract: Following Irminger s 1894 aerodynamic tests, Flachsbart s pioneering boundary-layer wind tunnel experiments in 1932, and University of Western Ontario (UWO) 1970 s tests, considerable progress has been achieved in low-rise building design for wind. O ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860471

26. Discussion of Definition of Wind Profiles in ASCE 7 by Yin Zhou and Ahsan Kareem
Published: 11/1/2003
Authors: Emil Simiu, Fahim Sadek, Michael A Riley
Abstract: The discussion presents a critique of a paper published in the Journal of Structural Engineering, Aug. 2002, pp. 1082-1086. The main points of the discussion are: (1) the ASCE Standard definition of wind profiles is inconsistent with the ASCE definit ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860459

27. Distribution of Earthquake Input Energy in Structures
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6903
Published: 1/1/2003
Authors: P Khashaee, B Mohraz, Fahim Sadek, Hai Sang Lew, John L Gross
Abstract: In developing an energy-based design approach and assessing the damage potential of structures, one must know the distribution of earthquake input energy among energy components: kinetic, elastic strain, hysteretic, and damping. This report examines ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860444

28. Draft Report on the Collapse of the Dallas Cowboys Indoor Practice Facility, May 2, 2009 (NIST IR 7636) ***DRAFT for Public Comments (for final version, see NIST IR 7661)***
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7636
Published: 10/6/2009
Authors: John L Gross, Joseph A Main, Long Thanh Phan, Fahim Sadek, Stephen A Cauffman, David P. Jorgensen
Abstract: This report summarizes the National Institute of Standards and Technology (NIST) study of the collapse of the Dallas Cowboys indoor practice facility that occurred on the afternoon of May 2, 2009, during a severe thunderstorm. The indoor practice fa ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903920

29. Energy-Based Design Approach for Seismic Design: Energy Spectra
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6599
Published: Date unknown
Authors: P Khashaee, B Mohraz, Fahim Sadek, Hai Sang Lew, John L Gross
Abstract: Among the approaches that the Structural Engineers Association of California has recommended for performance based seismic design is the energy approach. In this approach, the earthquake input energy transmitted to the structure is estimated from gr ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860314

30. Equivalent Number of Loading Cycles for the Seismic Testing of Passive Energy Dissipation Devices
Published: 7/1/2002
Authors: Fahim Sadek, Michael A Riley
Abstract: Prototype testing of passive energy dissipation devices is required to verify their response characteristics and demonstrate their capacity to withstand the design loads. These tests usually consist of loading the devices with a defined number of cy ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860447



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