Hi -
I have a question about the allowable story drift in ASCE 7 Table 12.12-1. Footnote c has the following:
There shall be no drift limit for single-story structures with interior walls, partitions, ceilings, and exterior wall systems [highlight #FCE94F]that have been designed
to...
I'm rethinking how I am breaking the diaphragms up...
I found this thread today:
thread507-462591
It gave me the idea of taking out the strut force between the two walls on either side of the center roof and distributing it to the two perpendicular walls (as was discussed in the thread I...
I now have a better idea of how the roof will be framed. Below is a plan view of the house – the thick red lines are possible shearwall locations, the yellow dashed lines are where trusses are located that I plan to use as drag struts.
As I noted previously, the roof in the front of the...
Okay, I think I'll start with that. I may have some more questions once I get further into the analysis. Thanks for your input so far, I really appreciate it!
Thanks for your reply BAretired. Does the sketch below depict what you're describing?
One issue - the shearwall on the right side (labeled SW3 in the image I attached in my initial post) has a window in the center and the side segments have aspect ratios of 3.6:1, so I can't use it as a...
I have a question on a 1-story wood frame house that has a center section that is vertically and horizontally offset from the adjoining sides. Please see the attached figure (the image on the left is an isometric view of the house, the center image is a plan view of the roofs and shearwalls, and...
I think I agree - Ch 28, part 2 should not be used. Thanks for your opinion, I appreciate it. I may have further questions once I start calculating the loads (I mostly use part 2, so I need to brush up on the other method).
Wind often controls here.... I would like to just calculate the pressures assuming a regular shaped building, but the paragraph I quoted from Malone's book made me question whether I should do that. I'll look into using the directional procedure if it's easier to setup a spreadsheet for that...
Thanks Simba13 - I bought the Kindle version of that book a few days ago, it's a great book. In section 2.3 it has the following regarding the calculation of wind loads:
2.3 Load Distribution into a Diaphragm
IBC Section 1609.1.1 allows the determination of wind loads to be in accordance with...
I am working on a 1 story house with a roof that is vertically offset at the center (please see the attached image). As you can see in the plan view, there are also some horizontal offsets.
For the wind loading, I would prefer to use the envelope procedure, part 2 of ASCE Chapter 28 since that...
Hi Mike - I don't think the client will want to go to the expense of bringing their entire house up to code...
Is there a good source for construction details for adding on to a home and keeping it structurally separate from the existing building? I can analyze the new addition for wind and...
Hi All - Thanks for your replies and suggestions, I appreciate it. I will probably have addition questions once I make a site visit in a couple of weeks.
