Skip to main content

Cavity walls: metal wall ties

The facing and backing wythes of cavity walls are bonded with metal wall ties or horizontal joint reinforcement. Most adjustable loop ties have a drip that falls in the cavity to prevent the migration of water to the inner wythe. Why are drips not recommended for rectangular ties?

AnswerThe bend of the drip would reduce the capacity of a rectangular tie to transfer lateral load.

ARE 4.0 exam prep: BDCS

Comments

Try These Too!

Wood stairs

In wood stair construction, what is the difference between a carriage and a stringer?! Answer A carriage is the principle support for the treads and risers, whereas the stringer is the finish member (face) that treads and risers terminate against. ARE 4.0 exam prep: BDCS

Bolted connections

What is the minimum spacing of bolts specified by AISC? and preferred spacing? A. 1 1/4 times the diameter of the bolt; 2 times preferred B. 1 3/4 times the diameter of the bolt; 2 1/4 times preferred C. 2 1/3 times the diameter of the bolt; 2 2/3 times preferred D. 2 2/3 times the diameter of the bolt; 3 times preferred E. 3 times the diameter of the bolt; 3.25 times preferred

Brick bonds

What distinguishes the English Bond pattern from the Dutch Bond pattern in this image? Answer In the English Bond, stretchers are aligned; In the Dutch (cross), stretchers move by a half each course (not aligned). ARE 4.0 exam prep: BDCS