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The weld access hole or rat hole is a structural engineering technique in which a part of the web of an I-beam or T-beam is cut out at the end or ends of the beam. The hole in the web allows a welder to weld the flange to another part of the structure with a continuous weld the full width on both top and bottom sides of the flange.
The weld time in this process is between 1 and 6 milliseconds. Capacitor discharge stud welding with the latest equipment can create a weld without burn-through showing on the opposite side of very thin metals. CD stud welding is often used for smaller diameter studs and pins, as well as on non-standard materials and for accuracy.
Engineers that rely heavily in the AISC manual for steel construction and AWS D1.1 for guidance have found out that the word “adhesive” appears only three times in the 604-page long AWS D1.1/D1.1M:2015 Structural Welding Code – Steel and only as part of the title of a reference standard (AWS A3.0, Standard Welding Terms and Definitions ...
Tapcon screws are a popular anchor that stands for self tapping (self threading) concrete screw. Larger diameter screws are referred to as LDT's. This type of fastener requires a pre-drilled hole—using a Tapcon drillbit—and are then screwed into the hole using a standard hex or phillips bit. These screws are often blue, white, or stainless ...
A robust robotic arc welding fixture is a part-holding tool used to constrain components for welding in an automated system. [15] Welding fixtures locate parts using these clamps to secure important aspects of the subcomponent, such as holes, slots, or datum surfaces. Careful considerations must be made when designing welding fixtures.
Waffle slab - Walking excavator - Wall - Wall chaser - Wall footing - Wall plan - Wall stud - Water–cement ratio - Water heating - Water level - Waterproofing - Wattle and daub - Wearing course - Weathering steel - Weatherization - Weld access hole - Welded wire mesh - Welder - Welding - Welding power supply - Wheel tractor-scraper - White ...
Lally column – is a round thin-walled structural steel column oriented vertically to provide support to beams or timbers stretching over long spans. The steel shell of a Lally column is filled with concrete. Lightening holes – Limit load (physics) – Limit state design – Linear elasticity – Lintel – Live load – Load bearing ...
Another option is a tripartite weld where the lug on the anode cable is made of steel with a tapered hole in it. The tapered end of the stud welds through the hole onto the pipeline, welding to both the lug and the pipe and providing a fully welded connection between the anode cable and pipeline.