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Author: john gross

Displaying records 41 to 50 of 52 records.
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41. Modification of Existing Welded Steel Moment Frame Connections for Seismic Resistance
Published: 5/1/2001
Authors: John L Gross, M D Engelhardt, C M Uang, K Kasai, N Iwankiw
Abstract: The Congressional emergency appropriation resulting from the January 17, 1994, Northridge earthquake provided the Building and Fire Research Laboratory (BFRL) at the National Institute of Standards and Technology (NIST) an opportunity to expand its a ...

42. Slab Effects in SMRF Retrofit Connection Tests
Published: 3/1/2001
Authors: S A Civjan, M D Engelhardt, John L Gross
Abstract: A series of six full-scale subassemblages were tested to investigate dogbone and haunch retrofits for pre-Northridge steel moment connections. Tests included matched pairs of specimens, one bare steel and one including composite slab. Data were colle ...

43. Implications for Earthquake Risk Reduction in the United States From the Kocaeli, Turkey, Earthquake of August 17, 1999
Published: 8/1/2000
Authors: John L Gross, Long Thanh Phan
Abstract: The moment magnitude (MW) 7.4 Kocaeli, Turkey, earthquake struck the Kocaeli province of northwestern Turkey on Tuesday, August 17, 1999 at 3:02 a.m. local time and caused extensive damage to buildings (an estimated 250,000 building units suffered fr ...

44. Retrofit of Pre-Northridge Moment-Resisting Connections
Published: 4/1/2000
Authors: S A Civjan, M D Engelhardt, John L Gross
Abstract: An experimental program was undertaken to evaluate methods to retrofit existing steel moment connections for improved seismic performance. Six full-scale subassemblages were tested under cyclic loading. Typical pre-Northridge connections were retrofi ...

45. Cyclic Testing of Steel Moment Frame Connections Rehabilitated with RBS or Welded Haunch
Published: 1/1/2000
Authors: C M Uang, Q -S Yu, S Noel, John L Gross
Abstract: The effectiveness of using the reduced beam section (RBS) and welded haunch for seismic rehabilitation of pre-Northridge steel moment connections was investigated through cyclic testing of six full-scale specimens-three of them incorporated lightweig ...

46. Seismic Rehabilitation Design of Steel Moment Connection with Welded Haunch
Published: 1/1/2000
Authors: Q -S Yu, C M Uang, John L Gross
Abstract: This paper describes a design procedure for the seismic rehabilitation of pre-Northridge steel moment connections using a welded haunch. Experimental results from cyclic testing of full-scale specimens demonstrated that welding a triangular haunch be ...

47. Connection Model for the Seismic Analysis of Welded Steel Moment Frames.
Published: 5/1/1998
Author: John L Gross
Abstract: An analytical approach is described for performing seismic evaluation of welded steel moment frame buildings constructed prior to the 1994 Northridge earthquake. The approach is based on an analytical model that captures the possibility of connection ...

48. Design Guidelines for the Seismic Modification of Welded Steel Moment Frame Buildings
Published: 5/1/1998
Author: John L Gross
Abstract: Prompted by the widespread damage to welded beam-to-column connections as a result of the 1994 Northridge earthquake, the National Institute of Standards and Technology (NIST) initiated a study to determine the efficacy of various techniques for the ...

49. Applications of the NIST ROBOCRANE.
Published: 1/1/1994
Authors: Roger V Bostelman, James S. Albus, Adam S Jacoff, John L Gross, N Pagalakis
Abstract: The Robot Systems Division of the National Institute of Standards and Technology (NIST) has recently been experimenting with a variety of applications for the NIST ROBOCRANE. The ROBOCRANE design utilizes the basic idea of the Stewart Platform parall ...

50. Investigation of L'Ambiance Plaza Building Collapse in Bridgeport, Connecticut (NBS IR 87-3640)
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 87-3640
Published: 9/30/1987
Authors: C G. Culver, C. F. Scribner, R D Marshall, Felix Y. Yokel, John L Gross, Charles William Clay Yancey, E. M. Hendrickson
Abstract: Results from an investigation to determine the cause of the collapse of the L'Ambiance Plaza building on April 23, 1987 are presented. The building was being constructed using the lift-slab method: collapse occurred during construction. The invest ...

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