1-At double stud locations where two pieces of plywood form a seam, stitch nail the two studs together with 16 ’ s 3 inches apart staggered. If the plywood collar is going to be 2 inches apart, nail them in concert 2 inches apart with 16 ’ second. If 6 inches, nail them 6 inches apart, etc .
Nail edge of each slice of plywood 3 ” aside staggered into each stud. For higher capacity shear walls edge nailing can be with 10d commons ( 0.148 ) tow inches on center. The affect of nailing on shear wall construction is discussed on this page about plywood complete.
The only way to by rights install a fleece wall is to snap a chalk line down the kernel of each stud and place a nail 1/4 inch from each side of chalk line. Remember, your shear rampart may be the alone thing between safety and catastrophe and it needs to be built perfectly .
2-On the ends, if there is a double stud for a clasp down, you can either stitch nail the two studs together 3″ o.c. and stagger nails 6″ o.c. on each dot ( this makes a full of 3″ o.c. nailing on this edge ) or nail into the end stud alone 3″ o.c. staggered .
3-In middle of plywood away from the edges put complete 12″ apart. Use a chalk line. No want to stagger .
4-Nail plywood to amphetamine top plate 3 inches apart. “ No indigence to nail into lower top plate. If there is an obstruction along upper top home plate, breeze through upper and lower top plates together with 16 ’ s 3 ” o.c. and pinpoint into lower circus tent plate only .
O.c. mentioned below means “ on center ” meaning center of one nail down to concentrate of the future collar. In bare terms o.c. means “ aside ” .
A coarse way of bridging breaks in a top plate is through the use of MST straps. Below is table representing their capacitance.
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MST straps require 16d nails, though substitutions are allowed. For example, as shown in the alteration factor postpone below, if a 10d by 1-1/2 nails are used alternatively of a 16d commons, the strength of the strap must be reduced by 16 %. This is accomplished by multiplying the value in the postpone above by 0.84 .
therefore, an MST48 with a tension value of 5,310 pounds is actually worth 4,460 if 10d ticos are used ( 0.84 ten 5,310 ) .
high values can besides be achieved by using straps made of 2 by 4s. If the two top plates are nailed together to form one single penis, and the top plate rupture ( either single or doubled ) is bridged with a 2 by 4, the value of an MST48 can be achieved by installing 24 12d nails through the 2 by 4 on each side of the rupture. 5310/188=28.2 .
The value of a higher lastingness MST72 flog can be achieve with 36 nails on each side of the break- 6730/188 = 35.8 nails .
If staples are used, which have a fleece value of 80 pounds each and have no potential for separate, the capacity of this connections is about boundless .
narrow straps such as CS16 used in individual top plates have a a lot lower value
There is no decrease from using 10d nail 1-1/2 edge long quite than the 10ds in the catalogue.
This can be greatly increased with a wood 2 by 4 strap. If 20 nails are nailed through the 4 animal foot segment of 2×4 on each side of the break, the tension connection will now be worth 3,760 pounds. If 2 1/2 long staples are used, the capacity of this connection is about illimitable .
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