Deflection | Eng-Tips
Oct 21, 2009 · Deflection criteria are put in place for a variety of reasons, including aesthetics, limiting cracks, mitigation of creep, and to force sections to be more resistant to "dynamic" deflection such as …
Building Allow. Drift (Deflection) vs. C&C Allow. Drift ... - Eng-Tips
Apr 16, 2012 · Are you looking at wind deflection or seismic? 0.02H is for seismic and your window wall would be damaged (but shouldn't fall off the building) in a seismic event. Most general maximum …
Deflection Limits | Eng-Tips
Aug 3, 2001 · Dougantholz - It seems that deflection limits are up to the engineer who is designing, and not to exceed the limits set forth in code (l/240, l/360, l/600, etc.). Lets just say an l/360 delf. limit for …
Differential Deflection of Crane Runway Beams | Eng-Tips
Jul 29, 2014 · Hello all, I was hoping someone can shed some light on the topic of differential deflection of a crane runway beam for me. I have a situation where the runway beam on one side of the …
Post Tension Slab on Grade Deflection Criteria Question
Jun 25, 2019 · I am curious if someone could explain to me why with PT slabs on grade the deflection limits for "Prefab Roof Trusses spanning the full length or width of the foundation" are limited to …
Deflection during machining causing out-of-tolerance parts?
Jun 2, 2006 · My company purchases machined cast iron housings that hold bearings and shafts. Like an automotive transmission, we rely on a pair of dowel pins to align the two halves accurately. I …
NYC Building Code Deflection Criteria for Steel Structural Member
Nov 16, 2008 · NYC building code states "for steel structural members, the dead load shall be taken as zero." What is the exact reasoning behind this exception? Is this still applicable to composite slab?
Deflection. Absolute or Relative? | Eng-Tips
Oct 4, 2019 · It depends what the goal of the deflection limit is. For most deflection limits in structures, the end goal is either user comfort or preventing issues with non-structural elements and finishes. In …
How to strengthen I beam deflection | Eng-Tips
Apr 7, 2015 · If I were to add Angel iron to the inside of the beam over the web (like a square tube), would this strengthen the lateral deflection? it would be cheaper, and easier to manage the assembly.
Deflection of stud walls at ends (where wind pressure is higher)
Nov 19, 2013 · The deflection is limited so that the stucco will not crack. Because of the increased wind pressure at the ends of walls, when we get above 9' tall walls we almost always use 12" spacing or …