Regarding any aluminum railing project, it is imperative to understand the life-safety issue that arises when welding an aluminum railing or sign post. For example, a rail is classified as a life-saving fall guard for any elevation above 31 inches above grade. The aluminum alloys normally used (such as 6061-T6) get their strength from a …
Loss of Capacity Due To Welded Aluminum In Railings – Signs – Structures Read More »
When an anchor is installed into concrete, there is an area surrounding the anchor called a cone of influence in which the anchor is affecting and it is affected by. When two anchors are spaced too closely to one another and/or too closely to an edge, the anchor’s cone of influence reduces or becomes interfered …
Why are spacing, edge distance, and embedment important for concrete anchors? Read More »
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 …
Per the 2015 National Design Specification for Wood Construction (NDS 2015), section 12.1.4.6, the minimum length of lag screw penetration Pmin not including the length of the tapered tip, E, of the lag screw into the main member of single shear connections and the side members of double shear connections shall be 4D where D …
What’s the minimum penetration for lag screws into wood? Read More »
Per AISC-ANSI-360-16, the minimum edge distance for bolts to the edge of a connected part is to follow the below table J3.4 (inches) AISC/ANSI 360-16 is a free publication from AISC/ANSI Visit Our Pre-Engineered Plans & Evaluation Reports
Everything You Need To Know About Door Buck, Why Are They Used and When Do They Need to be Anchored Masonry 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 …
