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Author: hai lew
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41. Investigation of Construction Failure at Harbour Cay Condominium, Cocoa Beach, Florida (NBS BSS 145)
Series: Building Science Series
Report Number: 145
Published: 8/30/1982
Authors: Hai Sang Lew, Nicholas J. Carino, S. G. Fattal, M. E.
Abstract: The investigation of the collapse of a five-story reinforced concrete flat-plate structure under construction at Cocoa Beach, Florida is presented in this report. The investigation included onsite inspection, laboratory tests and anlytical studies. ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908924

42. Analysis of Construction Conditions Affecting the Structural Response of the Cooling Tower at Willow Island, West Virginia (NBS IR 80-2010)
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 80-2010
Published: 7/30/1980
Authors: Hai Sang Lew, S. G. Fattal
Abstract: The initial investigation of the Willow Island cooling tower collapse (NBS IR 78-1578)established that the most probable cause of the collapse was the imposition of construction loads on the tower before the concrete had gained adequate strength. Th ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908937

43. Investigation of Construction Failure of Reinforced Concrete Cooling Tower at Willow Island, West Virginia (NBS IR 78-1578)
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 78-1578
Published: 11/30/1979
Authors: Hai Sang Lew, S. G. Fattal, J R Shaver, T. A. Reinhold, B. J. Hunt
Abstract: The collapse of the natural-draft hyperbolic concrete cooling tower unit no. 2 at the Pleasants Power Station at Willow Island, West Virginia has been investigated. This investigation included onsite inspections, laboratory tests of construction ass ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908824

44. Analysis Procedures for Progressive Collaspe of Buildings
Series: Special Publication (NIST SP)
Report Number: 1025
Published: Date unknown
Author: Hai Sang Lew
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860578

45. 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 H 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

46. Macromodel-Based Simulation of Progressive Collapse: RC Frame Structures
Published: Date unknown
Authors: Yihai Bao, Sashi Kunnath, Sherif El-Tawil, Hai Sang Lew
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860717

47. Macromodel-Based Simulation of Progressive Collapse: Steel Frame Structures
Published: Date unknown
Authors: K Khandelwal, Sherif El-Tawil, Sashi Kunnath, Fahim H Sadek, Hai Sang Lew
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860718

48. Robustness of Composite Floor Systems With Shear Connections: Modeling, Simulation, and Evaluation
Published: Date unknown
Authors: Fahim H Sadek, Sherif El-Tawil, Hai Sang Lew
Abstract: This paper presents an analytical assessment of the robustness of concrete deck-steel beam composite floor systems with shear connectors under the assumption that an interior column has been removed. The study provides an insight into the behavior a ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860714

49. Seismic Capacity Requirements for Low-Rise Reinforced Concrete Buildings
Published: Date unknown
Authors: W. G. Lee, Hai Sang Lew
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860562