Brief History About The Development Of

Large Span Structures

Use of long span structures has today become an integral part of the building

and construction industry. While much information is available about the

benefits and uses offered by these structures, not much is known about their

origin and growth. Contrary to the popular belief that large span structures

were developed in the second half of the 20th century, their development was

initiated, shortly after the technological advancement in the later part of the

19th century.

With the advent of the railways in this era, the need to construct long span

enclosures was felt more than ever. Thankfully the technology of cast iron

structures at this time was advanced enough to make the construction of such

structure possible. With the passage of time, cast iron was replaced by

wrought iron, which in turn came to be replaced by steel and this in turn

enabled the building of longer and larger structures.

Some prominent structures that featured large span construction in the later

years of the 19th century include, Britain’s Crystal Palace, Paddington Station

and St. Pancras Station. These buildings were a perfect example of the new age

architectural engineering. Besides being lightweight and functional, they were

also extremely cost effective and expressed simplicity of design and precision

of structure.

In the earlier years of 20th century, the advances in airplane technology,

spelled the need for economically constructed large span sheds that also

offered large volume. These sheds were used for housing huge delicate

dirigibles and aircrafts. With the increase in the volume of air-traffic, the

quality and size of these sheds was further enhanced. Later, in keeping with

the wartime requirements, the construction of economical, easy to construct

and low profile hangers picked up pace.

The use of long span structures broadened constantly during the entire 20th

century. This was primarily due to the growing demand for flexible column

free spaces in both industrial sectors in structures designed for entertainment

and leisure. From production line assembly units for automobile industry, to

stadium roofing and even auditoriums and malls, the presence of these

structures is visible everywhere. Over the year constant modifications have

been made in these structures to meet the changing needs of the construction

industry and efficient, economically viable and aesthetically appealing

structures that last really long.