SAMPLE FOUNDATION DETAIL OF A STEEL TELECOMMUNICATION TOWER WITH 3 LEGS

Foundation for a Greenfield Telecommunication Tower

Normally in telecommunication tower construction, there are different types of towers design & built in the world depending on the height, location, weight of antennas or some other factors. Normally the towers ranging from 6m to 80m or more. The smaller towers like 6m - 12m basically design as poles (cylindrical sections/ tubes with a foundation) which erected on roof tops of buildings or other possible locations mainly in urban areas. And 12m - 30m smaller towers which also erected on top of roof of buildings. 30m and above are normally constructed as Greenfield towers, except other than in special cases.

Greenfield or tall telecommunication tower in steel can be either self supporting or guyed mast types. In Guyed mast towers, the stability of the tower is ensured by the cable guides provided. And in the self supporting type towers, the stability is maintained by the foundation and the tower itself.

Normally the self supporting tall steel towers consists of either 3 or 4 legs based on the manufacture & design.

Normally a template will be using for the base concreting. This template is to ensure the correct dimensions in between the stump columns and the correct positioning of the anchored bolts ready to receive the legs of the tower.

The design of the foundation will be vary with the landscape of the location, and the height, loading, etc. of the tower. In addition to footings and column stumps, there can be tie beam in between depend on the terrain and soil condition of the location.

A Sample design/ detail of a 3 legged telecommunication tower is given below.

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Another sample set of detail drawings are shown below.

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