Tailored Steel Plate Strengthening Systems

Steel plate is a simple, effective solution for protection. STRUCTURAL TECHNOLOGIES helps select the proper grade, physical properties, as well as assist in the development of the proper details and fabrication.

Tailored Steel Plate Strengthening Systems

Steel plate is a simple, effective solution for protection. STRUCTURAL TECHNOLOGIES helps select the proper grade, physical properties, as well as assist in the development of the proper details and fabrication.

Tstrata Steel Plate™

Steel Plate Column WrappingTstrata Steel Plate solutions are custom designed and fabricated to meet a variety of stiffness and strength increase requirements from blast protection to forced entry mitigation. Feasibility analysis, design assistance, cost development as well as fabrication and procurement of Tstrata Steel Plate are all part of the range of the technical support and services available through STRUCTURAL TECHNOLOGIES.


Force Protection Applications:

Steel plating and steel Jacketing of structural members can be utilized to improve blast and progressive collapse resistance of structures by:

  • Increasing flexural and shear capacity of columns, beams and slabs
  • Increasing axial capacity of columns
  • Improving a structural member’s ability to resist failure caused by blast
  • Increasing resistance to slab uplift
  • Preventing progressive collapse caused by either column failure and/or slab uplift
  • Prevent spalling of concrete due to blast effects
  • Improving a member’s ductility and energy dissipation capability
Other Advantages Include:
  • Ease of integration with existing structure
  • Minimal space requirement
  • Minimal floor space loss
  • High effectiveness
  • Applicable in conjunction with other STRUCTURAL TECHNOLOGIES solutions such as DUCON® or V-Wrap™ FRP
Tstrata Steel Plate Options™

Typical steel plate applications cover a wide range of sizes and shapes. Plate grade, thickness and type of steel are highly dependent on the particular application. Physical properties such as strength, abrasion resistance, corrosion resistance, energy absorption and constructability (forming, welding etc.) vary based on the grade and quality and design of the steel plate solution.

Specialized Engineering Support Services

Assessment of Blast LoadsSTRUCTURAL TECHNOLOGIES in-house team of force protection experts and application engineers work hand-in-hand with owners, engineers of record, blast consultants and general contractors to develop the best solutions from a wide range of products. By partnering with design professionals we assist in solution development by providing:

    • Determination of blast loads and pressures
    • Analysis of blast capacity and performance determinants
    • Blast mitigation conceptualization and option development
    • Detailed high-fidelity analysis and design of mitigation options
    • Structural design of blast mitigation solutions

    Assessment of Structural Capacity for Blast


    Each product in STRUCTURAL TECHNOLOGIES force protection line can be custom engineered by our application engineering group to adjust to your specific project needs. Often multiple product solutions are combined and modified to optimize both performance and value.

    Collaboration with our in-house contracting services that understand constructability, schedule and construction costs ensure all elements of the project are taken into account in developing the highest value solution.

    Force Protection Engineering Team Leader
    Tarek Alkhrdaji, PhD, P.E.

    Tarek Alkhrdaji, PhD, PE

    Tarek Alkhrdaji, PhD, PE, is Vice President of Engineering with Structural Technologies, Hanover MD. He received his Masters and Ph.D. degrees at the Missouri University of Science and Technology. Dr. Alkhrdaji has experience in structural repair and strengthening and full scale load testing of concrete structures. He has been involved in more than 400 projects involving structural repair and strengthening and was involved in numerous repair and strengthening projects that received awards from The American Concrete Institute (ACI), the Post-Tensioning Institute (PTI), and the International Concrete Repair Institute (ICRI). Dr. Alkhrdaji also has experience in design, planning and execution of full-scale load testing of structures for strength evaluation and performance verifications. such as ACI, ASCE, AWWA, SEA, PTI, and ICRI. Dr. Alkhrdaji is currently an active member of He is also an active member of ACI Committee 437 (Strength Evaluation of Existing Concrete Structures), ACI Committee 562 (Concrete Repair Code), a member of ASCE (American Society of Civil Engineers), ICRI (International Concrete Repair Institute) and AWWA (American Water Works Association).

    Dr. Alkhrdaji has written more than 40 papers and articles on structural strengthening of structures including buildings, bridges, silos, tanks and concrete pipes. He has made many technical presentations at major industry events, professional organizations seminars and conferences and was the past Chair of ACI Subcommittee 440F (FRP Repair & Strengthening).



    STRUCTURAL TECHNOLOGIES' licensed engineering services are provided by Structural Technologies StrongPoint, LLC - A Structural Group Company, or through other licensed engineers.

    Installation Support

    Force Protection Column

    STRUCTURAL TECHNOLOGIES provides construction phase support services to ensure that the force protection systems are installed properly and will carry out their intended functions. We coordinate with builders to provide project-specific oversight, quality assurance and quality control.

    Turnkey Investigate – Design – Build Solutions

    When paired with Structural Group's specialty contracting companies—we provide our clients with a full range of force protection design support, construction, and maintenance services from a single source of accountability. Together, we seamlessly deliver customized, cost-effective, and long-lasting solutions for structural challenges.




    STRUCTURAL TECHNOLOGIES — A Structural Group Company

    With member companies dating back to 1902, Structural Group is firmly committed to its ongoing mission of making new and existing structures stronger and last longer. Through its member companies, Structural Group delivers turnkey solutions that integrate technology, engineering, and construction. Structural Group provides state-of-the-art products and engineering support services through STRUCTURAL TECHNOLOGIES and specialty contracting services through STRUCTURAL and PULLMAN

    Learn more about Structural Group and its member companies.