Skeleton frames

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Advanced Construction Technology
By Professor Chris Gorse , Joseph Kangwa & Ian Dickinson – licensed under the Creative Commons
Attribution – Non-Commercial – Share Alike License
http://creativecommons.org/licenses/by-nc-sa/2.5/
Skeleton frames: Assembling
Chris Gorse, Joseph Kangwa and Ian Dickinson
These slides should be read in conjunction with Emmitt, S. and Gorse,
C. (2010) Barry’s Advanced Construction of Buildings. Oxford, Blackwell
Publishing
Multi-story skeleton frame
Skeleton frames
• The following drawing shows a three
dimensional view of a steel frame
Actual frame
The completed building
precast stairs are provide a fast and
safe installation into the steel frame
Lining the building up
• The building will twist slightly as it is erected.
Before casting any concrete any movement in
the structure needs to be corrected. Winches
are used to pull the building back in line.
As the building is erected it will need to be
pulled into line.
Bracing
• Triangulation and solid infill walls are used to
hold the structure rigid and resist horizontal
loads such as wind.
Wind bracing
Roof bracing and composite floor provide
lateral resistance against wind loads
Fixing the frame together
• Roof beam to
column
connection
• Beam to
column
connection
Column to column – spliced and
bolted connection
Universal column
Column prefabricated with end plate
All holes for bolts are accurately
predrilled off site
Splice plate bolted to both top and
bottom column
End plates welded to the end of each
column and bolted together
Splice fixing ready to receive next
column
Column to column splice fixing
Column base and holding down bolts
Steel wedge holds the
base in the correct
line (position)
Base plate welded to column (plate minimum
12mm thick)
Steel packing shims fix column at correct
level
Temporary bund wall (sand)
None shrinkable grout fills void left below
plate (liquid grout poured into voids)
Void formed by cardboard or polystyrene
cones, which allows +/- 20mm horizontal
tolerance is filled with grout
Large washer fixed to bolt to prevent pull
out
Holding down bolts cast in concrete
Holding down bolt in temporary frame which
would be cast into a concrete base
Beam connection using end plates
welded to the beam
Universal column
Beam prefabricated with end plate
welded to the beam.
End plate
Holes for bolts predrilled in column and
beam end plate ensuring accurate fixing
Beam to column connection
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