Anchorage

Loss of Capacity Due To Welded Aluminum In Railings – Signs – Structures

Welded Aluminum Railings: Structural Risks, Code Requirements, and Design Considerations Welded aluminum railings are commonly used in residential, commercial, and outdoor applications due to their durability, corrosion resistance, and clean architectural appearance. However, from an engineering standpoint, welding aluminum—especially heat-treated alloys such as 6061-T6 or 6063-T6—introduces critical structural considerations that must be properly addressed to …

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Edge Distance

Why are spacing, edge distance, and embedment important for concrete anchors?

Why are spacing, edge distance, and embedment important for concrete anchors?​ Anchors transfer loads into concrete, making them vital for safe design. Their strength depends not only on the anchor itself but on how it interacts with the concrete. Three factors are key: spacing, edge distance, and embedment depth. If these are not respected, the …

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Metal Fasteners UNC vs Spaced Thread

Overview Metal fastening is designed per the requirements of the American Institute of Steel Construction (AISC): Specification for Structural Steel Buildings in conjunction with the American Architectural Manufacturers Association (AAMA): TIR-A9-14 Design Guide for Metal Cladding Fasteners. Types The two most common types of fastener threads used in construction are Unified Coarse Thread (UNC) more …

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Minimum Edge Distance Requirements for Bolts & Screws in Metal (Steel & Aluminum)​

Minimum Edge Distance Requirements for Bolts & Screws in Metal (Steel & Aluminum) Proper edge distance is critical to avoid tear-out, maintain bearing strength, and ensure fastener installation tolerances in metal members. Insufficient edge distance can lead to deformation or cracking near the edge of the metal, especially when larger fasteners or tight spacing are …

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What is a window or door buck

What Is A Window Or Door Buck? Openings in buildings are frequently not exact and are referred to as rough openings for that reason. When window products are placed into openings, they often need to be shimmed into place to properly fit the opening.  Sometimes, windows come with a ‘fin’ that requires a buck to …

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