Building Constructions 6.
Lecture XII.
ROOF STRUCTURES OF INDUSTRIALIZED
BUILDING SYSTEM
BME Department of Building Constructions
2016.
Gergely Dobszay Ph.D
ROOF STRUCTURES OF INDUSTRIALIZED
BUILDING SYSTEMS
mass production productivity, typing, pre fabrication
e.g. gang-nail trussed rafters
application: space, acoustical, thermal insulation requirements
SLAB SYSTEM roofs (solid, sloped slabs)
- monolithic r.c. inclined slab
- semi pre fabricated beam supported systems
- plank slabs
BME Department of Building Constructions
2016.
Gergely Dobszay Ph.D
Traditional pitched roof
• stability, mechanical strength
• fire protection?
• noise and vibration protection?
• safety and barrier free solutions
• life and wealth protection?
• energy saving and heat protection?
• health and environment protection
• sustainable consumption of natural
resources
•slow and complicated construction
process
BME Department of Building Constructions
2016.
Gergely Dobszay Ph.D
Walling structures : Roof supported by crosswise walls
Crosswise wall
e.g. Purlin type roof
Crosswise wall
dimensioning
with roof slab
Crosswise wall
„trapezoid r.c. slab”
BME Department of Building Constructions
2016.
Gergely Dobszay Ph.D
Intermediate purlins supported by crosswise walls
Supported collar beam
BME Department of Building Constructions
2016.
Gergely Dobszay Ph.D
Roof slab supported by crosswise walls
Lightweight structure on sloped surface
(continuity, sound insulation, heat gain
protection?)
BME Department of Building Constructions
2016.
Gergely Dobszay Ph.D
„Trapezoid” r.c. slab (monolithic or beam supported)
BME Department of Building Constructions
2016.
Gergely Dobszay Ph.D
20, 30 cm
5,80 m-ig
YTONG reinforced foam concrete roof plank
Complex, multifunctional element
Productive, fire resistant, indoor climate,
Simple roof shape, thermal insulation,
Small weight, reconstruction, listed buildings
BME Department of Building Constructions
2016.
Gergely Dobszay Ph.D
BME Department of Building Constructions
2016.
Gergely Dobszay Ph.D
Joints filled by concrete
- extra thermal insulation
BME Department of Building Constructions
2016.
Gergely Dobszay Ph.D
Longwise walling system
Trapezoid rc slab with brace beams
Window allocation
BME Department of Building Constructions
2016.
Gergely Dobszay Ph.D
SKELETON FRAMES
loads
Geometrical arrangements
screen
screen
BME Department of Building Constructions
2016.
Gergely Dobszay Ph.D
Dimension tolerance
r.c. fascia
Place of rib
BME Department of Building Constructions
2016.
Gergely Dobszay Ph.D
ROOF LAYERS OF
LIGHT WEIGHT ROOF
ROOF LAYERS OF SOLID ROOF SLAB
Vapor
permeable
uunder layer foil
BME Department of Building Constructions
2016.
Gergely Dobszay Ph.D
Trapezoid r.c. slab – window at roof plane
BME Department of Building Constructions
2016.
Gergely Dobszay Ph.D
Trapezoid r.c. slab – vertical roof window
BME Department of Building Constructions
2016.
Gergely Dobszay Ph.D