1 - eng coord Flashcards
Pros and cons of cast in place concrete
Pros:
1. strong compression
2. adaptable 9many forms)
3. lots of finishes and textures
4. rel low cost
5. fire resistant
6. thin assemblies
7. span can be increased with thickness/ reinforcement
cons:
1. weak in tension
2. very heavy
3. Labour intensive
4. good weather for pouring
Pros and cons of masonry as a structural system
pros:
1. modular
2. fast erection
3. fire resistive
4. adaptive
5. good acoustic properties
cons:
1. short spans
2. proper detailing is time consuming (weep holes, expansion joints etc)
3. reinforcing required
4. skilled trades essential
5. thicker assemblies
6. not great insulator
Pros snd cons of Steel as a structural system
pros:
1. fast construction
2. weight to volume/ light dead load
3. strongest low cost material
4. very adaptable
5. long spans with relatively light material
cons:
1. difficult to work on site
2. galvanized when exposed to elements
3. requires fire protection
4. most efficient with regular grid
5. needs lateral support (shear, bracing, rigid framing)
Pros and cons of wood structural system
pro:
1. most economical
2. easy to construct / trades
3. flexible and lightweight
4. dimensional lumber and engineered systems available
5. no weather limitations
con:
1. thick floor assembly
2. combustible
3. spans/ ht limited
4. needs many trades
5. susceptible to rot decay insect damage
Structural info to be decided at DD
- typical framing layouts
- max depth of members
- size/ location of openings
- fire rating issues
- any special equipment
mech info to be decided at DD
- central vs individual heating/ cooling
- type/size of equipment
- size/location of major ducts
- confirm size/location of utility room
- any special features (noise dampers etc)
elec info to be decided at DD
- anticipated load
- incoming services
- location of elec closet/ risers/ comm rooms
- embedding conduits
- fixtures, data systems etc
what is needed from consultants at CD
- detailed calcs
- plans/ details/ diagrams etc
- spec sections
- final construction cost estimate
list permanent dead loads:
- uniform
- concentrated
- distributed
6 static loads
- live
- dead
- ground pressure
- hydrostatic pressure
- ground pressure
- impact
heating/ cooling loads
heating load = heat lost
cooling load = heat gain