STRUCTURAL DESIGN FOR ARCHITECTURE

Structural Design for Architecture

Fig. 3.2 Cross-section and details of Bage's Mill, Shrewsbury, England, 1796. This is a very early example of an iron-

frame industrial building. The floors consisted of brick jack-arches, topped by a non-structural filling, supported on a

skeleton framework of cast iron beams and columns. No walls were required in the interior. Columns were not provided

50 in the perimeter walls which were therefore of loadbearing masonry. [Illustration. Mitchell's History of Building]

Iron roof frames

Fireproof floors

Normal

column

Window

Special

column

machinery

shaft

columnsIron for

Special

column

for

machinery

shaft

Smallest

section

near top

and bottom

of column

Maximum at

ground floor

150mm/6 inches

Iron

column

Iron

tie-rod

Iron

beam

Swelling

at middle

of column

Brick

jack-arches

Iron

-column 2.6m

(8.5ft) high

Column

swells out

at middle

Floor,

Detail of

typical column

beam and

jack-arches

Typical column

100mm (4 inches)

across at

top and bottom

Floor.

Tie-rod Column top

for columnSocket

Skewback

Skewback Tie-rod for columnSocket

•Wall

SIDE VIEW

won

TOP VIEW

•Tapering flange

.Skewback

100 mm

5 inches

jack-archBrick

Floor

surface

10 metres

Iron

column

for columnSocket

Tie-rod

CUT-AWAY VIEW

showing iron frameand fireproof floor

Tapering

flange

Skewback

Fireproof

ceiling

Brick

wall

SECTION

BEAM SECTION

beamIron

5

5

0 5 10 15 20 25 30 feet

1 0

0

0

Underside

of iron

beam

COLUMN

SECTIONS

OF SOLID

CAST IRON