Lecture 16 Flashcards
Walls/skin/enclosure must perform the functions:
Design intent
Structure
Thermal resistance
Moisture resistance
5 types of masonry walls
Composite walls Cavity walls Load bearing walls Reinforced walls Unreinforced walls
Composite masonry walls
Outer is brick/stone
Inner is another material
How are the wythes of a composite wall bonded
Horizontal steel reinforcement or tiles
Purpose of aaa org cavity wall
Prevents water from entering the building by creating a hollow space between the insides and outside wythes
I’m a cavity walll what type of steels are used to span the wythes apart
Corrosion resistant or stainless
How does water travel through a masonry cavity wall
Enters the outer wythe and travels out the bottom through weep holes
Weep holes
Where water exits a masonry cavity wall
In a masonry cavity wall, which wythe is a “veneer” and which wythe serves as structure
The interior= structural
The exterior= veneer
Minimum separation of wythes of a cavity wall
2 inches without insulation
In contemporary construction, what walls are not reinforced
The smallest and simplest
What are hybrid masonry systems used for
To span from floor to roof
4 masonry hybrid systems
Wood joist construction
Heavy timber
Steel
Concrete
What is wood joist construction essentially?
Ballon framing with masonry bearing walls
Why does heavy timber construction permit larger floor areas and greater building heights?
Heavy timber is slower to catch fire than light gram
