| Alternative Shear Panel Configurations for Light Wood Construction. Development, Seismic Performance, and Design Guidance |
APR 2002 |
136 pages |
| Authors:
James Wilcoski; Chad Fischer; Tim Allison; Kelly Jo Malach; CONSTRUCTION ENGINEERING RESEARCH LAB (ARMY) CHAMPAIGN IL
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 | Shear panels are used in light wood construction to resist lateral loads resulting from earthquakes or strong winds. These panels are typically made of wooden sheathing nailed to building frame members, but this standard panel design interferes with the installation of sheet insulation. A non- insulated shear panel conducts heat between the building interior and exterior wasting considerable amounts of energy. Several alternative shear panel designs were developed to avoid ... |
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| Seismic Testing of a 1/20 Scale Model of Koyna Dam |
NOV 2001 |
137 pages |
| Authors:
James Wilcoski; Robert L. Hall; James B. Gambill; Enrique E. Matheu; Mostafiz R. Chowdhury; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
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| In 1967, the Koyna mass concrete dam in India was seriously damaged by a magnitude 6.5 earthquake. The event is unique because the Koyna Dam is the only concrete dam to be significantly damaged due to ground shaking, and accelerometers at the site recorded time histories of the entire occurrence. The event provides researchers a classic problem for experimental studies and validating numerical procedures used to predict the seismic response ... |
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| Seismic Evaluation of the Type L and San Luis Obispo Braced Frame FAA airport Traffic Control Towers |
NOV 1998 |
320 pages |
| Authors:
James Wilcoski; Ernest Heymsfield; James Home; George Manning; Matthew Walters; CONSTRUCTION ENGINEERING RESEARCH LAB (ARMY) CHAMPAIGN IL
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| Executive Order (EO) 12941 requires all Federal agencies to develop and submit "seismic upgrade" cost estimates to the Federal Emergency Management Agency no later than 1 December 1998. The U.S. Army Corps of Engineers assisted the Federal Aviation Administration (FAA) in responding to this EO by evaluating the seismic resistance of many of their facilities. This report presents a detailed seismic evaluation of the FAA's Airport Traffic Control Towers in ... |
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| Seismic Mitigation for Equipment at Army Medical Centers Methods Illustrated With Examples from Madigan Army Medical Center |
JAN 98 |
66 pages |
| Authors:
James Wilcoski; CONSTRUCTION ENGINEERING RESEARCH LAB (ARMY) CHAMPAIGN IL
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| Medical centers may be the most critical facilities in the response and recovery phase immediately after a damaging earthquake. This report presents observations and makes recommendations for the protection of equipment, many of which support essential functions. These observations are based on a walk-down inspection of Madigan Army Medical Center conducted in December 1996. Protecting critical equipment include, ensuring an adequate load path, providing adequate anchorage, and accommodating differential movement. ... |
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| The CERL Equipment Fragility and Protection Procedure (CEFAPP): Experimental Definition of Equipment Vulnerability to Transient Support Motions |
MAR 97 |
140 pages |
| Authors:
James Wilcoski; James B. Gambill; Steven J. Smith; CONSTRUCTION ENGINEERING RESEARCH LAB (ARMY) CHAMPAIGN IL
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| The CERL Equipment Fragility and Protection Procedure (CEFAPP) is a new testing protocol that defines the capacity of equipment to withstand seismic and other transient support motion in terms of amplitude versus frequency. The amplitude is the support motion or response spectrum amplitude at which failure occurs. Failure may comprise actual mechanical damage, temporary loss of function, acceleration or strain levels at critical locations, or any other user-defined criteria. The ... |
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| Fragility Testing of a Power Transformer Bushing; Demonstration of CERL Equipment Fragility and Protection Procedure |
FEB 1997 |
55 pages |
| Authors:
James Wilcoski; Steven J. Smith; CONSTRUCTION ENGINEERING RESEARCH LAB (ARMY) CHAMPAIGN IL
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| This report presents a demonstration of the CERL Equipment Fragility and Protection Procedure (CEFAPP) as used in the testing of a large power transformer bushing. CEFAPP defines the capacity of critical equipment by tests conducted on a shake table. Equipment capacity is defined in terms of amplitude of motions with respect to frequency that cause equipment failure. These spectral amplitudes can be defined in terms ... |
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| Vibro-Acoustic Analysis of an Aircraft Maintenance Dock |
AUG 92 |
253 pages |
| Authors:
James Wilcoski; Louis Sutherland; CONSTRUCTION ENGINEERING RESEARCH LAB (ARMY) CHAMPAIGN IL ENGINEERING AND MA TERIALS DIV
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| This report documents an analysis of the effects of high-level acoustic environments on an Aircraft Maintenance Dock (AMD) designed for the U. S. Air Force by the U.S. Army Corps of Engineers. The analysis includes detailed estimation of the maximum sound levels inside the facility, identification of facility components that are potentially sensitive to high-level vibro-acoustic loads, and a summary of design considerations appropriate for this environment. Several critical components ... |
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| A Methodology for the Evaluation of Structural Design Software for DOS- Based Microcomputers |
JUL 92 |
25 pages |
| Authors:
Hojjat Adeli; James Wilcoski; John R. Hayes Jr; CONSTRUCTION ENGINEERING RESEARCH LAB (ARMY) CHAMPAIGN IL ENGINEERING AND MA TERIALS DIV
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| The missions of the U.S. Army Corps of Engineers and installation Directorates of Engineering and Housing require structural design engineers to produce high-quality designs with efficiency and accuracy. Therefore, the Army has an interest in the productivity and quality enhancements offered by structural design computer software. This report presents a methodology for evaluating the performance of commercially available structural design software for DOS-based microcomputers. Careful evaluation of such software is ... |
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| Use and Upgrade of the USACERL Biaxial Shock Test Machine: Workshop Summary |
MAY 91 |
74 pages |
| Authors:
John R. Hayes Jr.; James B. Gambill; James Wilcoski; Pamalee A. Brady; Ghassan Al-Chaar; CONSTRUCTION ENGINEERING RESEARCH LAB (ARMY) CHAMPAIGN IL
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| This report summarizes a workshop at the U.S. Army Construction Engineering Research Laboratory (USACERL) on 26 and 27 July 1990. The workshop was an assembly of Government engineers, and university and private industry researchers. It covered the use and potential upgrade of the USACERL Biaxial Shock Test Machine (BSTM) as well as the use of shake tables in general. Workshop participants discussed the BSTMS's capabilities, its applicability to perform seismic ... |
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| Experimental Polyvinyl Chloride (PVC) Roofing: Field Test Results |
FEB 87 |
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| Authors:
Myer J. Rosenfield; James Wilcoski; CONSTRUCTION ENGINEERING RESEARCH LAB (ARMY) CHAMPAIGN IL
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 | Results are reported for the first 2 years of a 10-year field test on three polyvinyl chloride (PVC) roofing systems. At the time of installation, the roofs were tested for initial properties to provide a basis for comparison with later samples. Test samples of each roof are taken at 6-month intervals and the samples section is patched. Properties evaluated are those considered essential to good roofing performance; they are tested ... |
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