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Trusses - CWC

Trusses Introduction Applications Shapes Spans History Materials Design Procedures Codes and Standards Details Gable Roof Girder and Valley Hip Roof Truss Support Manufacture Quality Control Fire Safety Additional Info Introduction Wood Trusses are widely used in single- and multi-family residential, institutional, agricultural and commercial construction. A truss is a structural frame relying on a triangular arrangement of webs and chords to transfer loads to reaction points. This arrangement gives them high strength- to-weight ratios, which permit longer spans than conventional framing, and offers greater flexibility in floor plan layouts. They can be designed in almost any shape or size, restricted only by manufacturing capabilities, shipping limitations and handling considerations. Light frame wood Trusses are prefabricated by pressing galvanized steel truss plates into wood members that are pre-cut and assembled in a jig.

In Canada truss plates are usually stamped from 16, 18 or 20 gauge (US Standard Gauge) sheet steel of minimum quality as prescribed in the 2001 edition of CSA Standard O86-01, Engineering Design in Wood. Truss plates are proprietary products approved by the Canadian Centre for Materials in Construction (CCMC) each with a unique set of design ...

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Transcription of Trusses - CWC

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Wood Trusses - CWC

cwc.ca

Light trusses are manufac-tured to suit virtually any roof profile. Pitched or flat, they are only limited to the load arrangements and the support locations. Flat Trusses: Flat trusses, also known as parallel chord trusses, are an alternative to conventional wood floor joist systems and are a competitive option to open web steel joist systems.

  Steel, Light

Trusses - CWC

cwc.ca

Trusses • Introduction • Applications • Shapes • Spans • History • Materials • Design Procedures • Codes and Standards • Details • Gable Roof • Girder and Valley

  Design, Trusses

Prescriptive Residential Exterior Wood Deck Span …

cwc.ca

7 canadian wood council residential prescriptive exterior wood deck span guide table 2a - deck joist spans not incised (m) maximum allowable

  Guide, Residential, Deck, Woods, Exterior, Prescriptive, Prescriptive residential exterior wood deck

Fire Separations & Fire resistance Ratings

cwc.ca

protection, using firestop systems. More information on firestop systems can be found in the W Fire Fact Sheet entitled “Fire Stops and Fire locks.” Fire-Resistance Ratings For an assembly or a structural member that is required to have a fire-resistance rating, Subsection 3.1.7. of the N specifies that the fire-resistance rating shall be

  Information, Sheet, Resistance, Fire, Ratings, Separation, Fire separations amp fire resistance ratings

Prescriptive Residential Exterior Wood Deck Span Guide - CWC

cwc.ca

4 DESIGN ASSUMPTIONS Joists and eams Design based on SA O86-14 and N 2015 Live load: 1.9 kPa (40 psf) Dead load: 0.5 kPa (10 psf) Grade: No.2 or better Species: Refer to Table 1 Live load deflection limit: L/360 Wet service condition factors for all Tables (Ksb = 0.84, Ksv = 0.96, KSE = 0.94) Treatment factors for incised lumber Tables (KT = 0.85 for ending and Shear, KT …

  Guide, Residential

Sizes Table 2: Plywood Thicknesses - CWC

cwc.ca

Common panel sizes are listed in Table 3. Panel Sizes 4' x 8', 4' x 9', 4' x 10' Sizes – Wood Ref. Handbook Canadian plywood is manufactured in several sizes and thicknesses as shown in Table 4.2 ( 197). It is most commonly available in sheets 1220mm (4') wide by 2440mm (8') long. It is also available in a metric size of 1200 x 2400mm. Other ...

  Size

Available sizes of glulam - CWC

cwc.ca

Standard sizes have been developed for Canadian glued-laminated timber to allow optimum ... Initial width of glulam stock Finished width of glulam stock mm. in. mm in. 89 3-1/2 80 3 140 5-1/2 130 5 184 7-1/4 175 6-7/8

  Standards, Finished, Size, Timber, Available, Size standards, Glulam, Available sizes of glulam

Oriented Strand Board (OSB) Sizes - CWC

cwc.ca

Oriented Strand Board (OSB) Sizes OSB panels are available in a variety of thicknesses and sizes. They are manufactured in both imperial and metric sizes, and are either square-edged or tongue-and-grooved on the long edges for panels 15 mm (19/32”) or thicker. The most common panel size is 1220 x 2440 mm (4 x 8 ).

  Board, Size, Oriented, Strand, Oriented strand board

Cahier Pratique de Calcul et D'Estimation - CWC

cwc.ca

• Disponibilité de main-d’oeuvre. • Facilité de montage et de manutention des matériaux. • Mise en œuvre plus rapide. • Options de finition. • Formes de bâtiment complexes relativement faciles à réaliser. C ahier pratique de calcul et d’estimation 1 1.0 Introduction GRID-CRA french 5/12/99 11:46 AM Page 1

  Magento, Pratiques, De montage, De pratiques

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TABLES FOR STEEL CONSTRUCTIONS

www.hti.edu.eg

• Pipes and hollow sections: primarily used as truss members in welded trusses. Hollow square and rectangular sections, sometimes used as roof purlins or light beam-columns. • Flat plates used in connections as head plates, gusset plates or it …

  Plate, Rust, Guesst, Gusset plate

The Whitmore Section - AISC

www.aisc.org

than steel gusset plates. They constitute a formidable problem in stress analysis capable of further exploita-tion in the laboratory…” In an attempt to better understand gusset plates, Whitmore conducted a test on a mock-up of a truss joint connection for a 295-ft truss that was constructed at quarter scale (see Figure 1).

  Section, Plate, Rust, Cisa, Guesst, Gusset plate, The whitmore section, Whitmore

5–1. Determine the force in each member of the truss, D E C

faculty.kfupm.edu.sa

•6–5. Assume that each member of the truss is made of steel having a mass per length of 4 kg/m. Set , determine the force in each member, and indicate if the members are in tension or compression.Neglect the weight of the gusset plates and assume each joint is a pin.Solve the problem by assuming

  Plate, Rust, Guesst, Gusset plate

Gusset Plate Stress 7a - ARC Structural

arcstructural.com

distribution in gusset plates. The tests were conducted on 1/8 in. aluminum gusset plates with a yield strength of 39 ksi and a modulus of elasticity of 10,000 ksi. The specimen was a 1/4-scale model of a warren truss joint with double gusset plates. Strain gages were mounted on the gusset plates, and the data was used to plot stress trajectories.

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Truss-framed Construction - Forest Products Laboratory

www.fpl.fs.fed.us

connectors, such as metal truss plates or plywood gusset plates, capable of transmitting bending moment, shear, and axial forces. Advantages offered by the TFS include savings in both construction materials and time. The system establishes consistent 24-inch spacing between frames and prevents a possible mix of ...

  Plate, Rust, Pulsar test, Guesst, Gusset plate

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Truss, Plates, Gusset plates, The Whitmore Section, AISC, Gusset, Truss plates