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 …

Feb 1, 2013 · The proper Global deflection limit to use also has to do with what is on the roof as a roofing material - this looks like a rafter/beam situation is why I mention it. If the roof is tile, deflection …

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 …

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 …

May 5, 2021 · The load is transferred to the beams in proportion to their flexural stiffness, so the total deflection is the same as a single beam with the sum of the two beams stiffness values.

Feb 16, 2022 · Hi, Consider the case of a cantilever frame as seen in the attached picture. When you consider the roof beam as an individual beam with one end fixed, I consider the vertical deflection …

Mar 28, 2003 · I have a 2 story office building with a precast concrete panel band around the entire bldg at the second floor. Above and below is storefront. What would be a good vertical deflection criteria …

Aug 27, 2008 · Standards normally dictate allowable ring deflection. AS 2566.1 allows 7.5% for PVC-U & PVC-O. But deflection is but one criteria.

Jul 18, 2007 · The deflection in the model is over 10 inches, which I'm assuming is the cause of the high bending stresses. However, I have heard that braces are typically pretensioned to eliminate sag (and …

Oct 8, 2021 · The slope deflection method would not be my choice, but it is a perfectly sound method. Since the structure and the loading are symmetrical, consider half the structure (from point 1 to 3). …