CDS - Construction Docs Flashcards
constantly check the development of a detail against
- original purpose
- performance reqs
- desired appearance
structural integrity
- live and dead loads
- wind loads
- seismic loads
- hydrostatic loads
- forces induced by building movement
- loads induced by human use (ex. opening a door - forces induced on the door jamb)
- forces caused by accidental or intentional abuse
- strength properties of a material or assembly to resist compression, tension, shear, torsion, rupture, hardness, impact)
safety
- structural (collapse or failure)
- fire safety (fire resistant, smoke and fumes from burning, failure)
- safety with human contact (ex. sharp edges of a material, wet floors and slippage)
durability and maintainability
- uv resistance
- temperature changes
- corrosion (pollution, water, atmospheric)
- resistance (marking, scratching/abrasion, impact)
designing a detail, keep in mind construction trade sequencing
can construction proceed from one trade to another with minimal overlap
building movement and substrate attachment
one material must provide an appropriate base for the attachment of another; base material must be compatible with the coating or joining material
- rigid - if one material moves, both move together (ex. plaster fixed to lath)
- rigid but adjustable - curtain wall anchored to floor beam
- flexible - movement is allowed (ex. expansion joint)
industry standard building methods developed
- through practice and experience
- by recommendations of trade associations and testing agencies
- from building codes
conforming to standards
- increases the likelihood that the detail will work
2. minimizes potential liability if something goes wrong
deviation from industry standards
- only after precise definition of the performance requirements specified for the building assembly
- after thorough research of the materials and construction being used
- careful analysis of how the construction might actually perform
resistance to moisture and weathering considerations
most difficult area of detailing
- permeability of the material
- durability of the material
- aggravating circumstances
- joints
- capillary action
- outlets
- sealants
thermal resistance
heat transfer needs to be investigated
- heat loss
- heat gain
other properties to consider when detailing
- acoustical
- light reflection
- abrasion resistant
- resistance to termites or other insects
- holding strength of fasteners
- resistance to fading
- mildew resistance
- color
- finish
organization and layout of construction drawings
to lay out information in a sequence that is most logical so that contractors and subs can find what they need without confusion
ways architect can promote coordination during design and contract document production
- periodic meetings
- progress prints
- notify consultants of changes in writing as they occur
- check and coordinate entire set prior to bid
5.
drawings and specifications
- specifications are complementary to the drawings
2. they should work together without duplicating or overlapping information
tolerance
the amount of allowable variance from a given line, dimension, or size
requiring tighter tolerances that what is generally accepted by industry standards requires
- better materials
- more time
- more labor
- higher cost
areas water might be present
- roof
- exterior walls and penetrations
- below-grade walls and slabs
- pools
- areas under and around showers/tubs
- kitchens
- mechanical rooms