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Types of Superstructure


David Walker

on 28 April 2014

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Transcript of Types of Superstructure

Types of Superstructure

What is a superstructure ?
Learning Outcomes
Identify the purpose and function of a superstructure
Evaluation of techniques used
Steel Frame
(Commercial construction)
Types of superstructure
Timber Frame
Mixing process
Use an electric or petrol/diesel mixer on level ground.
Gauge the materials and fill the mixer with half the water required.
Add half the amount of cement and sand.
Allow to mix and then add remaining cement and sand.
Add more water and allow two minutes to mix.
How would you mix mortar by hand?
Mixing mortar
Mortar is used in bricklaying for bedding and jointing the bricks when building a wall.
What materials are used to produce mortar?
Mortar materials are kept dry before adding water. Why?
What are the advantages of mixing by machine?
Bonding is the different patterns formed when lapping bricks.
Half brick lap is the most common type of bond.
Bonding gives more strength to a wall and also distributes heavy loads.
What problems might you have with walls without bonding?
Wall ties – these tie the internal and external walls together, giving stability.
Lintels – bridge any openings in walls and support brickwork above.
Wall ties and lintels
Blockwork – covered with plasterboard. Low thermal and sound insulation.
Metal stud partition – similar to timber but using metal.
Timber stud partition – quick to erect. Clad in plasterboard and insulation can be used.

When might these walls be used?
Internal walls
The most common type of wall is cavity walling.
Two walls built parallel to each other with a gap in between.
The outer leaf prevents rain and wind penetrating.
The cavity is usually filled with insulation.
Cavity walls
Timber Frame in Construction
Achieve long spans
Quick to construct
Prefabricated off site
Minimises labour requirements
Advantages of Steel Frame Construction
Commercial Low rise (Steel Frame)
Public use
Health care
All have impact on design considerations !
Function of the building
Prefabricated timber frame
Pod and modular prefabricated rooms (Wet rooms)
Concrete precast sectional structures
Off site manufacturing (Factory Controlled)
Modern Methods In Construction
Timer Frame Construction
Example external wall section
Timber frame construction
Easy to erect
Minimises wet trades
Domestic low Rise Construction

Today’s buildings use combinations of traditional and modern techniques and materials in their construction,
These are influenced by the functional requirements of building elements and by legislation.
External Wall section
Traditional (Brick and Block)
Modern Methods
Mind Map the common systems used how the type of function impacts the buildings design / construction
Use full links
Timber Frame
How quick can timber frame be built?

Approved document L covers timber frame construction
Incorporating RSJ
Research task - What other types brickwork bond are in construction
Brick Bonds
Maximum strength
lateral stability
Acceptable appearance
Research - the properties of mortar & and answer the questions
In groups of 2 list the procedure for installing a timber frame partition
Key Term
What is a critical dimension ?
The future of construction

Resiential / commercial build
Full transcript