Concrete Anchors
Concrete Anchors mount in concrete structures via studs cast into the pour or installed after. They differ from beam clamps by being permanent or semi-permanent and by requiring special drilling equipment. Types: cast-in (installed during the pour) and post-installed (drilled and fixed later) with mechanical or chemical bolts.
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About this category
Choosing the correct concrete-anchor type determines its fall-arrest load capacity. Cast-in anchors install during the concrete pour via a template holding a steel stud at a calculated length and diameter. This is the strongest type because the stud is integrated with the concrete and supported by reinforcement. Post-installed anchors install after the pour via mechanical expansion anchors that expand inside the hole under mechanical pressure, or chemical anchors that use epoxy or strong adhesive to bond the stud to the hole. Chemical anchors qualified for cracked concrete can outperform mechanical ones in some applications, but they need a cure time set by the manufacturer for the product and temperature before loading. A pull-out test is required before first use to confirm load capacity. Required strength follows the applicable standard or the engineered system design. Applications: concrete building roofs, work platforms at power stations, concrete tank maintenance anchors, and tall parking structures. A substantive difference from beam clamps: concrete anchors are permanent and require a structural study, while beam clamps are portable. Specifications follow ANSI Z359.18, EN 795, and ACI 318 for concrete installation.
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Choosing the correct concrete-anchor type determines its fall-arrest load capacity. Cast-in anchors install during the concrete pour via a template holding a steel stud at a calculated length and diameter. This is the strongest type because the stud is integrated with the concrete and supported by reinforcement. Post-installed anchors install after the pour via mechanical expansion anchors that expand inside the hole under mechanical pressure, or chemical anchors that use epoxy or strong adhesive to bond the stud to the hole. Chemical anchors qualified for cracked concrete can outperform mechanical ones in some applications, but they need a cure time set by the manufacturer for the product and temperature before loading. A pull-out test is required before first use to confirm load capacity. Required strength follows the applicable standard or the engineered system design. Applications: concrete building roofs, work platforms at power stations, concrete tank maintenance anchors, and tall parking structures. A substantive difference from beam clamps: concrete anchors are permanent and require a structural study, while beam clamps are portable. Specifications follow ANSI Z359.18, EN 795, and ACI 318 for concrete installation.
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