Applications of fiber optics in physical protection

The purpose of this NUREG is to provide technical information useful for the development of fiber-optic communications and intrusion detection subsystems relevant to physical protection. There are major sections on fiber-optic technology and applications. Other topics include fiber-optic system components and systems engineering. This document also contains a glossary, a list of standards and specifications, and a list of fiber-optic equipment vendors

Carolina Crossroads phase 1 - Colonial Life Blvd. Richland and Lexington Counties, South Carolina a design-build project

SCDOT proposes to construct a new exit ramp to US 378 from I-26 eastbound and associated interstate widening in Lexington County and a full access interchange at Colonial Life Boulevard at I-126 in Richland County. This will include construction of new bridges and related roadway approaches. The purpose of the project is to provide traffic access to and from I-26 and I-126 to Colonial Life Blvd., allowing for closure of the existing on and off ramps that access I-26 from Bush River Road. The purpose of this Request for Proposals (RFP) is to select a Proposer to perform the Project services described in this RFP

Request for proposals final with addendum 5 : Carolina Crossroads Phase 1 – Colonial Life Blvd. at I-126 Interchange design - build project project ID P039718 Richland and Lexington clounties Sept. 1, 2020

The purpose of this Request for Proposals (RFP) is to select a Proposer to construct a new exit ramp to US 378 from I-26 eastbound and associated interstate widening in Lexington County and a full access interchange at Colonial Life Boulevard at I-126 in Richland County

Request for proposals final with addendum 6 : Carolina Crossroads phase 2 - Broad River Rd. at I-20 Interchange design-build project Project ID P039719 Richland County December 3, 2020

The purpose of this Request for Proposals (RFP) is to select a Proposer to perform the Project services and to design and construct the Project, as further described in this RFP

Remote Continuous Evaluation of a Bridge Constructed Using High-Performance Steel, 2006

Of the approximately 25,000 bridges in Iowa, 28% are classified as structurally deficient, functionally obsolete, or both. The state of Iowa thus follows the national trend of an aging infrastructure in dire need of repair or replacement with a relatively limited funding base. Therefore, there is a need to develop new materials with properties that may lead to longer life spans and reduced life-cycle costs. In addition, new methods for determining the condition of structures are needed to monitor the structures effectively and identify when the useful life of the structure has expired or other maintenance is needed. High-performance steel (HPS) has emerged as a material with enhanced weldability, weathering capabilities, and fracture toughness compared to conventional structural steels. In 2004, the Iowa Department of Transportation opened Iowa's first HPS girder bridge, the East 12th Street Bridge over I-235 in Des Moines, Iowa. The objective of this project was to evaluate HPS as a viable option for use in Iowa bridges with a continuous structural health monitoring (SHM) system. The scope of the project included documenting the construction of the East 12th Street Bridge and concurrently developing a remote, continuous SHM system using fiber-optic sensing technology to evaluate the structural performance of the bridge. The SHM system included bridge evaluation parameters, similar to design parameters used by bridge engineers, for evaluating the structure. Through the successful completion of this project, a baseline of bridge performance was established that can be used for continued long-term monitoring of the structure. In general, the structural performance of the HPS bridge exceeded the design parameters and is performing well. Although some problems were encountered with the SHM system, the system functions well and recommendations for improving the system have been made

Lightning Protection System for Space Shuttle

The suitability and cost effectiveness of using a lightning mast for the shuttle service and access tower (SSAT) similar to the type used for the Apollo Soyuz Test Project (ASTP) mobile launcher (ML) was evaluated. Topics covered include: (1) ASTP launch damage to mast, mast supports, grounded overhead wires, and the instrumentation system; (2) modifications required to permit reusing the ASTP mast on the SSAT; (3) comparative costing factors per launch over a 10 year period in repetitive maintenance and refurbishment of the existing and modified masts, mast supports, grounded overhead wires, and ground instrumentation required to sustain mechanical and electrical integrity of the masts; (4) effects of blast testing samples of the ASTP ML type mast (corrosion and electrical flashover); (5) comparison of damages from ASTP launch and from blast testing