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ASCE 7-16 (and 7-22) section 12.9.1.4.2 states that, if the MRSA drift base shear is < Cs*W where Cs is determined in accordance with Eq. 12.8-6 (or 12.8-7 in ASCE 7-22), then the MRSA drifts are scaled up by Cs*W / Vt. There seem to be two interpretations of this provision: (a) scale up to Eq....
The new ductile coupled wall system introduced in ASCE 7-22 uses similar detailing to the Special RC Wall system but also is required to have coupling beams, meeting specific dimensioning and detailing requirements contained in ACI 318 and ASCE 7- Chapter 14. The primary difference between the...
This message was posted by a user wishing to remain anonymous I am writing to request clarification on the differences between Special reinforced concrete shear walls and Reinforced concrete ductile coupled walls, as outlined in ASCE 7-22 Table 12.2-1. While I understand that Ductile coupled...
William- I believe you are misinterpretting the figure and note. Note 3 states that the soffit pressure, ps, is equal to the wall pressure pw, not that the wall pressure is dpeendent on the soffit pressure. The arrows are shown in two different directions because just as with any location on...
Channels do better, pipes and box sections are having a problem of corrosion inside because we can't protect inside by painting. Myself used the channels with inside filled with concrete used as lintels for renovation of a building.
Hello Alex, I can't speak to the Indian codes, but I wonder if part of the reason you're not able to "fully utilize" the section is that stability limit states and flexure-torsion interaction govern the design. In AISC 360 (US code for steel), single angle flexural members must be checked for...
It's Beuro of indian standard IS 800 1984 and IS 800 2007, consider angle equal or unequal legs center of gravity is out side the section, if it's a rectangular section bar center of is at the geometrical center, then if the line of action of the load is coincide with the center of gravity line...
Alex: 1) What code are you referencing? 2) Do you have an example of the type and orientations of your connections? 3) Do you use AISC's Manual of Steel Construction? It does a great job these days of providing connection details especially tubing and pipes. AISC also provides a manual for...
For the design of steel structures what is the provisions in the codes of getting un symmetrical sections fully utilized since lines of action of force and axis of symmetry of the steel structures must be the same for it's.
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