Post-installed anchors provide structural reinforcement, strengthening, and repair remedies to a variety of applications. With options such as chemical, mechanical, temporary, and permanent anchors, these powerful solutions offer resistance and corrosion protection, withstand extreme temperatures, allow for rapid job completion, and can stabilize and strengthen unreinforced masonry.

In response to a request from Structural Engineer, a number of manufacturers provided the following information about their products. Some companies declined to participate by failing to return the questionnaire by our deadline. We apologize for inadvertent omissions. To be added to our contact list, please e-mail Jennifer Goupil, P.E., at jgoupil@zweigwhite.com.

The Cintec Anchor System is a versatile method of structural reinforcement that is tailored to meet the specific strengthening and repair requirements of individual projects. Cintec anchors are used in historical buildings, masonry bridges, monuments, high rise buildings, retaining walls, and harbor walls, with applications such as railroad piers, blast window retention, terra cotta repairs, vertical wall reinforcement, brick, and granite tie-back. Cintec anchors can stabilize and strengthen an unreinforced masonry structure without the need of external and internal steel bracing.
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Hayward Baker, a member of the international Keller Group, provides ground and rock anchors for temporary or permanent support of excavations, for permanent resistance of hydrostatic uplift forces on bottom slabs, and for resistance of wind-induced uplift forces. Hayward Baker also provides a full range of geotechnical construction services.
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As the 2003 and 2006 International Building Codes are adopted across America, engineers will be required to design post-installed anchors using the strength design method according ACI 318 Appendix D. According to Hilti, the company is the first and only manufacturer to offer multiple mechanical and chemical anchors compliant with IBC 2003 and 2006 tested in accordance with ICC-ES AC193 and AC308 for cracked concrete and seismic applications. With more than 800 highly trained Hilti account managers, 60 field engineers throughout North America, and PROFIS anchor design software (free download online), engineers and contractors can expect the best from Hilti in post-installed anchors.
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Powers Fasteners is a global company specializing in manufacturing and marketing quality fastening products for concrete, masonry, steel, and wood. In the near future, the company will offer several concrete anchoring platforms, which meet stringent anchoring criteria of the new building code. These products will provide practical solutions for cracked concrete anchoring. According to the company, it will expand its already proven Trak-It system to include the C4 tool, revolutionizing the gas fastening market with larger diameter fastenings and broader applications.
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Simpson Strong-Tie Anchor System’s Titen HD screw anchor is a high-strength anchorage solution for concrete and masonry. The Titen HD is ideal for structural applications, even at minimum-edge distances and reduced spacing. Threads along the length of the anchor undercut the concrete and efficiently transfer the load to the base material. The patented thread design requires less installation torque, allowing for quick and easy installation using standard drill bits. The Titen HD installs in one eighth of the time compared to traditional expansion anchors, and is available in 3/8- to 3/4-inch diameters.
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Williams Form Engineering mechanical anchors are often used when a post-installed prestressed anchor is needed to resist heavy or vibratory loading. Each anchor is prestressed (proof-loaded) typically to a two-to-one safety factor based on the anchor’s ultimate tensile strength. In addition, many of Williams’ mechanical anchors can be cement-grouted to provide corrosion protection and also to help lock in the prestress load. According to the company, its mechanical anchors have been used for foundation repair, structural supports, bridge applications, and countless other situations that demand a high degree of structural safety.
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