SPS Repair

Blast testing of CMU wall reinforced with Hardwire® SRP


Blast Resistance

Structural Preservation Systems enhances the blast and ballistics resistance and mitigation for concrete, masonry, steel and timber structural elements. Upgrading existing structures depends on the required increase in blast resistance, risk levels and blast loads. Existing conditions, cost and constructability are evaluated to determine the best solution for each application.

Our innovative solutions have been successfully used to increase the resistance, stiffness and/or mass of structural elements.

To achieve an optimal upgrade solution, two main strengthening techniques are used – conventional and advanced systems. Conventional systems include methods such as section enlargement and supplemental steel framing. Advanced methods include the use of carbon FRP and Hardwire® SRP composite systems externally bonded to structural elements.

Solutions:
  • Shielding of the Structure
  • Strengthening of Existing Structural Elements
  • Creating Alternative Load Paths to Prevent Progressive Collapse
  • Debris Control
 
Techniques:
  • FRP Composites
  • SRP Composites
  • Section Enlargement
  • External / Internal Post-Tensioning

Featured Articles

Blast Mitigation of Concrete Structures
The Construction Specifier, March 2006
Although recent concerns about terrorism have generated a wider knowledge of the consequences of bombing, the majority of public, federal, and corporate buildings still has minimal blast-resistance capacities and may not be able to survive the destructive effects of such attacks.
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Technology Imparts Blast Resistance Wire-to-Wire
Concrete Products, September, 2004
A proprietary innovation in blast-resistance is based on a familiar technology. Steel-belted radial tires incorporate the same wire metallurgy as Hardwire, a family of high-tensile-steel reinforcement products said by the manufacturer to have been successfully implemented as blast-resistance and blast-mitigation retrofit solutions on a variety of structures and infrastructure components.
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Structures Needing Strength Get a Stiff Belt from Hardwire
Engineering News-Record, Aug 30/Sept 6, 2004 Issue
Some call it "steel-belted duct tape." Inspired by a rebar cage, an inventor in 2000 began tinkering in his garage with ultrahigh-strength twisted steel wires, attempting to replicate the structure in miniature. The material, called Hardwire, comes in various configurations, but all resemble duct tape in being thin and shipped on a spool.
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Hardwire Steel-Belted Reinforcement Product Provides New Solution for Blast-Resistance Need
Business Wire, August 17, 2004
Hardwire, LLC has announced that their proprietary high-tensile steel reinforcement products -- based on steel-belted technology commonly found in tires -- have been successfully implemented as solutions for structures and other infrastructure components seeking blast-resistance and blast-mitigation retrofit.
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