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Displaying records 21 to 30 of 75 records.
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21. 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 ...

22. 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 ...

23. 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 ...

24. 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 ...

25. 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 ...

26. 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 ...

27. 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 ...

28. 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 ...

29. 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 ...

30. Experimental Testing of Roof to Wall Connections in Wood Frame Houses
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6938
Published: 4/1/2003
Authors: Michael A Riley, Fahim Sadek
Abstract: The majority of residential construction in the United States is wood-frame construction. These buildings perform well under gravity loads, but considerable damage has been observed in such structures after significant earthquakes and major hurrican ...

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