CHAPTER 4 Flashcards
0
Q
Bracing is signaled by
A
Stars Plates Channel sections Spreaders Straps tying the front wall to the side wall
1
Q
Braced walls are a basic sign that the wall is in
A
Distress
2
Q
Wall may be tied
A
Across the building or tied to floor beams
3
Q
Braced wall facts
A
- Braces of unprotected structural steel, or worse, of steel cable will fail at fire temperatures
- Braces are NOT always an indication of instability
- Some buildings have walls which are tied to floors to make the structure more rigid. Generally these can be identified by Spreaders, usually stars in a regular pattern
4
Q
Steel Tension Cables or Rods with Reinforcing Plates (Stars) found in Mill Loft Buildings have certain characteristics
A
- These reinforcing plates, commonly in the shape of a Star, can be seen on exterior walls of the building
- They were installed during construction by design (indicated by a uniform pattern)
- They were also put into Post Construction (irregular pattern) when floor framing cannot relied upon to tie-in the opposing walls due to age and deterioration
- Steele Tension Cables or Rods can fail at 800 Degrees