Methods & Codes 1
Lecture 13
thirteen
design loads & methods,
structural codes
lecture
ARCHITECTURAL STRUCTURES:
FORM, BEHAVIOR, AND DESIGN
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Structural Codes - Architectural Structures - Lecture Slides, Slides of Structural Design and Architecture
Structural Codes, Occurrence, Choice of Material, Economic Design Method, Analysis Method, Design Methods, Different Approaches, Safety Requirements, Load Types. Its lecture of Architectural Structures. A complete lecture series is in my files.
Typology: Slides
2011/2012
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Methods & Codes 1Lecture 13
thirteen
design loads & methods,
structural codes
lecture
ARCHITECTURAL STRUCTURES:
FORM, BEHAVIOR, AND DESIGN
Methods & Codes 2Lecture 13
Design
- factors out of the designer’s control
- loads
- occurrence
- factors within the designer’s control
- choice of material
- “cost” of failure (F.S., probability, location)
- economic design method
- analysis method
Methods & Codes 4Lecture 13
Load Types
- D = dead load
- L = live load
- Lr = live roof load
- W = wind load
- S = snow load
- E = earthquake load
- R = rainwater load or ice water load
- T = effect of material & temperature
- H = hydraulic loads from soil (F from fluids)
Methods & Codes 5Lecture 13
Dead Loads
- fixed elements
- structure itself
- internal partitions
- hung ceilings
- all internal and external finishes
- HVAC ductwork and equipment
- permanently mounted equipment
- F = mg (GRAVITY)
Methods & Codes 7Lecture 13
Concentrated Loads
Methods & Codes 8Lecture 13
Distributed Loads
- for an area
w A
Methods & Codes 10Lecture 13
Load Locations
- centric
- eccentric
- bending or flexural load
- torsional load
- combined loading
Methods & Codes 11Lecture 13 F2012abn
Load Paths
- tributary
areas
- transfer
Methods & Codes 13Lecture 13
Wind Load
- wind speed
- gusting
- terrain
- windward, leeward, up and down!
- drag
- rocking
- harmonic
- torsion
Methods & Codes 14Lecture 13
Snow Load
- latitude
- solar exposure
- wind speed
- roof slope
Moscow 2006 (BBC News)
Methods & Codes 16Lecture 13 Architectural StructuresARCH 331
Dynamic Response
Methods & Codes 17Lecture 13
Dynamic Response
- period of vibration or
frequency
- wave
- sway/time period
- damping
- reduction in sway
- resonance
- amplification of sway
Methods & Codes 19Lecture 13
Water Load
- rainwater – clogged drains
- ponding
- ice formation
mrfussycontracting.com
Methods & Codes 20Lecture 13
Thermal Load
- stress due to strain
- restrained expansion or contraction
- temperature gradients
- composite construction