West
Keck Telescope
On 15 October 2006, a large earthquake damaged both telescopes at Keck Observatory causing them to miss weeks of observation. SGH analyzed the Keck telescopes for seismic performance.
Idaho Falls, ID
Idaho National Laboratory, Integrated Waste Treatment Unit (IWTU)
Scope/Solutions
The Idaho Cleanup Project involved installation of an Integrated Waste Treatment Unit (IWTU) that implemented a prototype technology. The IWTU processes radioactive acidic sodium-bearing waste and converts it into a solid carbonate product. As engineer of record, SGH designed two of the primary buildings to accommodate the system and supported completion of the project on an expedited schedule.
The IWTU facility includes a 40,000 sq ft steel braced-frame structure that houses off-gas, mechanical, and processing areas, and also supports a 20-ton bridge crane. A high-hazard reinforced concrete structure with thick walls supported on an extended mat slab sits below the crane and contains process and packaging cells (PPC) and a loading vault. A transfer bell crane travels between the PPC and a separate cask loading area. For this project, SGH completed the following:
- Analyzed and designed the following:
- PPC facility in accordance with DOE-STD-1020-02 for Performance Category 3 (PC-3) requirements for seismic soil-structure interaction behavior and nonseismic dead, live, and temperature loadings
- Foundation and structure of the steel building for enhanced code requirements to prevent collapse onto the PPC
- Runway for the 20-ton bridge crane
- Foundation and framing for the transfer bell crane
- Reviewed the structural design of the bridge crane for compliance with ASME NOG-1 codes
- Specified geotechnical requirements and reviewed geotechnical reports
- Performed structure-soil-structure interaction analysis to generate design input and in-structure response spectra
- Support to develop concrete mix design and testing plan
- Provided construction support and administration services
- Presented and defended the project to the Defense Nuclear Facility Safety Board (DNFSB), the DOE
- Environmental Management headquarters, an owner-established Blue Ribbon Panel, and peer reviewers
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Project Summary
2010
Completion Date
Solutions
New Construction
Services
Structures | Advanced Analysis
Markets
Science & Defense
Client(s)
Thor Treatment Technologies, LLC | CH2M-WG Idaho, LLC
Specialized Capabilities
Building Design | Seismic Engineering | Nuclear
Key team members
Additional Projects
West
Moffett Federal Airfield Hangar 1
Constructed by the U. S. Navy in 1933 to support its lighter-than-air aviation program, Moffett Federal Airfield was transferred to NASA after being decommissioned in 1994. SGH provided building enclosure and materials science services for the project.