Adaptable Systems for Strengthening

Tstrata Enlargement Systems™ bond additional reinforced concrete to existing structures and may be customized for any application. These systems are ideal for situations that require improved strength and stiffness.

Adaptable Systems for Strengthening

Tstrata Enlargement Systems™ bond additional reinforced concrete to existing structures and may be customized for any application. These systems are ideal for situations that require improved strength and stiffness.

Adaptable Systems for Strengthening

Tstrata Enlargement Systems™ bond additional reinforced concrete to existing structures and may be customized for any application. These systems are ideal for situations that require improved strength and stiffness.

Tstrata Enlargement Systems™

STRUCTURAL TECHNOLOGIES' Tstrata Enlargement Systems bond additional reinforced concrete to existing structures. Our systems are used to increase or restore load-carrying capacity to a variety of structures. Customized for every application, enlargement and overlay systems are ideal for situations that require improved strength and stiffness.

Tstrata Enlargement designs include both mild steel or post-tensioned steel to reinforce member enlargements. STRUCTURAL TECHNOLOGIES' designs ensure that structural enlargements act monolithically (fully bonded) with the existing structure.

A number of traditional and advanced design approaches, technologies and techniques have been developed by STRUCTURAL TECHNOLOGIES to optimize the performance and the transfer of forces between an existing section and new concrete enlargement.

Advantages:
  • Ability to significantly add additional capacity to existing members
  • Controls deflection
  • Easy integration with existing structure
  • Uniform appearance and repair schemes that blend well with the existing structure
  • Increasing axial capacity of columns
  • High levels of fire resistance
Design elements include:
  • Pressurized form technology that forces new concrete into the pores of the existing concrete surfaces, enhancing the bond between the two materials. Form pressurization also consolidates the repair material and provides full encapsulation of reinforcement. This enhanced bond ensures that the enlargement works in conjunction with the original member to form a single composite that will perform to the designed structural capacity
  • Methods to steel dowel and profile existing members in preparation for enlargement
  • Custom concrete material specification and placement techniques
  • Extensive steel reinforcement
Specialized Engineering Services for Structural Strengthening

STRUCTURAL TECHNOLOGIES’ Strengthening Team provides highly specialized engineering and technical support services. Our team integrates with owners, engineers and builders to evaluate multiple strengthening options in order to produce the best, most comprehensive solution.

 
Strengthening 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).

 

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

Installation Support

Punching Shear Strengthening

STRUCTURAL TECHNOLOGIES provides construction phase support services to ensure that the strengthening 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 strengthening 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.