June 2016

Joining trusses

By |2022-09-15T12:38:23+02:00June 15th, 2016|Notes, O Level Science Notes, Ordinary Level Notes|

Gang nails on a wooden truss.

Gang nails on a wooden truss. Image credit naildesignart.biz ZIMSEC O Level Combined Science Notes:Joining trusses
  • In the real world various techniques are used to join trusses in ways that prevent joints from becoming points of weakness
  • Steel trusses are usually joined by welding […]

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Experiment: Comparing roof truss structures

By |2022-09-15T12:38:25+02:00June 13th, 2016|Notes, O Level Science Notes, Ordinary Level Notes|

A bridge made of ice cream sticks. Image credit pinterest.com

A bridge made of ice cream sticks. Image credit pinterest.com ZIMSEC O Level Combined Science Notes:Experiment: Comparing roof truss structures

Aim:  To determine which structure is best for roof trusses/bridge girders

Materials:  Poplar wood /ice cream sticks/grass straws, stikistuff/drawing pins/glue, tin of sand, […]

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Uses of Trusses

By |2022-09-15T12:38:25+02:00June 13th, 2016|Notes, O Level Science Notes, Ordinary Level Notes|

A girder bridge made of trusses. Image credit luetke-modellbahn.de

A girder bridge made of trusses. Image credit luetke-modellbahn.de ZIMSEC O Level Combined Science Notes: Uses of Trusses
  • Trusses are used extensively in large civil structures
  • One their uses is to make girder bridges
  • These bridges are designed in such a way […]

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