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You searched on: Author: hai lew

Displaying records 31 to 40 of 54 records.
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31. Assessment of Structural Systems Evaluation Methods Based on Local Seismic Demands
Published: 12/1/2002
Authors: Hai Sang Lew, S K. Kunnath
Abstract: This paper examines the effectiveness of nonlinear static procedures for seismic response analysis of buildings. Nonlinear static procedures are recommended in FEMA 273 (Guidelines for Seismic Rehabilitation of Buildings) for assessing the seismic p ...

32. Global Response Modification Factors vs. Member Ductility-Based Modifiers
Published: 7/1/2002
Authors: S K. Kunnath, Hai Sang Lew, D Friis
Abstract: Most building structures today are designed using the response modification factors (R-factors) given in the code for different types of structural systems. This paper examines whether ductility-based modifiers for structural members (m-factors), re ...

33. Manual for Seismic and Windstorm Evaluation of Existing Concrete Buildings for Dominican Republic (NIST IR 6867)
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6867
Published: 4/1/2002
Authors: Hai Sang Lew, Emil Simiu, John L Gross
Abstract: This manual is prepared for seismic and winds hazards evaluation of reinforced concrete buildings in the Dominican Republic. The evaluation procedures presented in this manual can be applied to any ordinary cast-in-place concrete buildings, but are ...

34. Standards of Seismic Safety for Existing Federally Owned and Leased Buildings
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6762
Published: 1/1/2002
Authors: Stephen A Cauffman, Hai Sang Lew
Abstract: The seismic safety evaluation and mitigation standards, Standards for Seismic Safety for Existing Federally Owned and Leased Buildings, were developed for use by the Federal Government by the Interagency Committee on Seismic Safety in Construction (I ...

35. Summary of NIST/GSA Workshop on Application of Seismic Rehabilitation Technologies to Mitigate Blast-Induced Progressive Collapse, September 10, 2001, Oakland, CA
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6831
Published: 12/1/2001
Authors: Nicholas J. Carino, Hai Sang Lew
Abstract: On September 10, 2001 an informal workshop was held in Oakland, California to discuss the applicability of seismic rehabilitation technologies to enhance the resistance of buildings to progressive collapse in the event of loss of primary load-carryin ...

36. The Maturity Method: From Theory to Application
Published: 5/1/2001
Authors: Nicholas J. Carino, Hai Sang Lew
Abstract: The maturity method is a technique to account for the combined effects of time and temperature on the strength development of concrete. The method provides a relatively simple approach for making reliable estimates of in-place strength during constru ...

37. Strength Evaluation of Connectors for Intermodal Containers
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6557
Published: 8/1/2000
Authors: Hai Sang Lew, Fahim Sadek, E D Anderson
Abstract: Intermodal containers are used widely in marine cargo handling. In order to facilitate unloading of empty containers from ship to shore, two containers are lifted frequently in tandem. This operation is referred to as vertical tandem lifting. In ...

38. Supporting Document for Rehabilitation Cost Estimates of FEMA Existing Buildings
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6315
Published: 3/1/1999
Author: Hai Sang Lew
Abstract: This report presents the results of seismic evaluation and cost estimates carried out by the National Institute of Standards and Technology (NIST) for rehabilitation of existing buildings owned by the Federal Emergency Management Agency (FEMA). The s ...

39. Evaluation of Seismic Performance Parameters
Published: 6/1/1997
Author: Hai Sang Lew
Abstract: Recent earthquakes have shown that buildings designed for life safety could sustain severe damage to structural and nonstructural elements and building contents. In the U.S. several groups have proposed performance-based seismic design approaches to ...

40. January 17, 1995 Hyogoken-Nanbu (Kobe) Earthquake: Performance of Structures, Lifelines, and Fire Protection Systems (NIST SP 901)
Series: Special Publication (NIST SP)
Report Number: 901
Published: 7/1/1996
Authors: R M Chung, D B Ballantyne, E Comeau, T L Holzer, Daniel M. Madrzykowski, A J Schiff, William C Stone, J Wilcoski, R. D. Borcherdt, J D Cooper, Hai Sang Lew, Jack P. Moehle, L H Sheng, A W. Taylor, I Bucker, John R Hayes, E V Leyendecker, T O'Rourke, M P Singh, M Whitney
Abstract: The January 17, 1995 Hyogoken-Nanbu earthquake of magnitude 7.2 in JMA scale (Mw = 6.9), which struck Kobe, Japan and its surrounding area was the most severe earthquake to affect that region this century. The earthquake resulted in more than 6,000 d ...

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