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Sir Christopher Wren
Said, "I am going to dine with some men.
If anyone calls,
Say I am designing St Paul's."
A clerihew by Edmund Clerihew Bentley
Houses for sale in London Structural engineering
The walls of the cathedral are particularly thick to avoid
the need for large flying buttresses. The windows are set
into deep recesses in the walls. The upper parts of the cathedral
walls are reinforced with small flying buttresses, which were
houses for sale in London a relatively late design change
to give extra strength. These are concealed behind a large
curtain wall, which was added to keep the building's classical
style intact.
The large dome is composed of three layers. The inner and
outer layers are catenary curves, but the structural integrity
to support the heavy stone houses for sale in London structure
atop the dome is provided by a intermediary layer which is
much steeper and more conical in shape. The dome is restrained
by a wrought iron chain to prevent the base spreading and
cracking.
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