Shear Wall Holddown loads
Shear Wall Holddown loads
(OP)
As of late I have been increasing my floor diaphragm sheathing thickness with my exterior shear wall sheathing thickness and finally my panel nailing pattern... all of these items will create a stronger home to reduce the high load I am getting for Holddowns... my question is this... what else can I beef up on within the structure to reduce the holddown loads?






RE: Shear Wall Holddown loads
DaveAtkins
RE: Shear Wall Holddown loads
Also, as any structure is sometimes we have interior walls and other times we don't.
I have in the past placed a holddown in a corner of a home and then another 16" inward "with a reduction of course" to get the high loads that the shearwall panel needed.
But the problem is the load I need is very high and even doing that the entire length of the shearwall by the time I get to center of wall my holddown isn’t doing anything.
RE: Shear Wall Holddown loads
Have you tried perforated shear wall designs? How high of a magnitude are you talking about?
RE: Shear Wall Holddown loads
But the house I have has many open areas with not much wall, and I was wondering of other idea's that some have had that are working?
Corner holddown = 14 kips, and into a "superior wall", which I will not even get into that one!
RE: Shear Wall Holddown loads
it only really works if the height is greater than or equal to the width.
csd
RE: Shear Wall Holddown loads
RE: Shear Wall Holddown loads
Adding more shearwalls, or using transfer beams to increase the leverage will decrease the uplift, along with trying to use bearing walls as shear walls to take advantage of the dead load to lower the overturning.
Mike McCann
McCann Engineering
RE: Shear Wall Holddown loads
RE: Shear Wall Holddown loads
RE: Shear Wall Holddown loads
Of course your house may get a foot or so higher.