FS102 Building Construction for fire protection

Unit 6 – Wood Frame Construction

FS102: Unit 6 - Wood Frame Construction

Unit 6 Seminar Topics Wood Frame (Type V) Construction

Truss Construction

Heavy Timber (Type IV) Construction


Wood Frame (Type V) Construction Definitions

Building terms are local in origin; different trades use different terms○ Wood-Framed○ Wall-Bearing○ Curtain Walls○ Wooden-Walled Building


Wood Frame (Type V) Construction Types of Wood-Frame Buildings

Log cabinPost and frameBalloon framePlatform framePlank and beamTruss frame


Truss Construction Lightweight Trusses and Other Wooden

MembersFire service has gained more truss

knowledgeContributes to light-weight structuresAllows offsite prefabricationSatisfies many building requirementsLighter in weight that solid constructionProvides long clear spansCan be delivered prefabricated


Truss Construction What is a Truss?

○ A framed structure consisting of a triangle or group of triangles arranged in a single plane

○ Loads applied at intersections of the members will cause direct stresses in the members

○ Loads applied between these points cause flexural stresses


Truss Construction Truss Types

Parallel-Chord TrussesTriangular Trusses

Compression vs. TensionNormal TrussCantilever Truss


Heavy Timber (Type IV) Construction History

Heavy timber construction descendent of true mill construction

Developed in New EnglandBuilding design that eliminated serious faults

of mill construction


Heavy Timber (Type IV) Construction Heavy Timber Building

Requires careful maintenance Deficiencies should be clearly notedRealistic prefire scenarios are required


Heavy Timber (Type IV) Construction Modern Heavy Timber Buildings

Not being built in record numbersA niche for certain types of occupancies Most common use is the modern heavy

timber church


Summary Wood Frame (Type V) Construction

Truss Construction

Heavy Timber (Type IV) Construction


FS102 Building Construction for fire protection

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