Nail Laminated Timber

Transcription

1 Nail Laminated Timber NAIL LAMINATED TIMBER, NLT, is a mass timber panel system and is used for floor, wall, and roof structure structural options. It is a good alternative to concrete slabs and steel decking in commercial and residential buildings. In addition to the structural strength, the NLT panel systems offer cosmetic value to the structural materials. Mass timber panels can also be used as the wall enclosure material for elevator and stair shafts. NLT is manufactured by stacking 2x4, 2x6, 2x8, 2x10, 2x12 or 2x14 dimensional lumber on edge and connecting them together with nails, screws or other fasteners. Plywood sheathing and or concrete top coatings are often added to the top side of the panel for strength or subsequent finishing. NLT components can be butt jointed, however, Finger Jointed (FJ) Lumber produces a more structurally sound product

2 WHY NLT? PREFABRICATION: Panels are fabricated in a controlled environment ensuring the following criteria is adhered to: STRUCTURE: Adherence to all design specifications and quality standards. Electrical and Water line penetrations can be easily integrated into the panels during fabrication. The NLT panels can be produced in high volumes at reduced cycle times. In most cases, factory applied final finishes, can be accommodated. NLT Panels are significantly lighter than their steel and or concrete counterparts. The net impact of this is the reduction in footing and foundation volume, resulting in lower costs. Panels can be fabricated in thicknesses ranging from 4 inches to as much as 14 inches. Lengths can be as long as 60 feet using Mid-Columbia s Finger Jointed (FJ) technology. Panel width is limited to the width of the transportation methodology (10 max is typical). SITE: Panelization allows for a significant reduction in erection time. The panels are moved into place and connected to the previously erected support structure. Timber panels are easily modified on site if necessary. COSTS: In most applications, Mass timber buildings are now competitive with steel and concrete on a $/FT 2 basis. Significant labor savings, when compared to on-site NLT fabrication. SUSTAINABILITY: LEED FSC and regional material credits are available

3 TYPICAL APPLICATIONS: ROOF AND FLOOR PANELS: Roof and Floor panels are manufactured by placing selected dimensional lumber on edge and then connecting the pieces together with nails or other approved connectors. FLAT SOFFIT PANELS: Soffit panels are fabricated in a similar fashion to that used to produce the Roof and Floor units. Due to their inherent durability, they can be used both indoors and outdoors. WALL PANELS: NLT Wall Panels are fabricated in the same manner as floor and roof panels. Indoor wall panels can be finished in various configurations depending on the end use. STRUCTURAL BEARING WALLS: NLT panels can be used as structural bearing or shear walls. Due to the panel configuration, they meet are fire rating of 2 hours for elevator shafts and stair wells. The prefabricated panels provide the user with a cost effective alternative to concrete and steel fabrication. UTILITIES/SERVICE INCORPORATION: Utility runs for, electrical and plumbing systems, can be integrated into the panels. The required routes, are pre-fabricated into the panels and are subsequently filled in with cover boards following installation

4 PERFORMANCE CHARACTERISTICS: FIRE PROTECTION: Due to the mass of the NLT panels, most all fire codes can be met. Classified as heavy timber, NLT is able to achieve fire resistance ratings of up to 2 hours. ACOUSTIC PERFORMANCE: The use of wood does not meet some sound requirements. As such, enhanced sound alternatives are often needed for floor panels. Concrete toppings and or acoustical mats are often used to ensure requirements are met. COMPLIANCE: NLT is sanctioned by building codes in both Canada and the USA. NLT qualifies as Heavy Timber as long as it conforms to nailing specifications and the depth is at least 2 1/2" for a roof and 3 1/2" for a floor SURFACE TREATMENTS: NLT panels are compatible with a wide variety of surface finishes

5 TYPICAL PANEL PROPERTIES: Panel Dimensions Fabrication Tolerances Moisture Content Fire Performance Penetrations/Openings Length Width Panel Thicknesses Up to 60 Feet Up to 10 Feet in any increment + 4 inch width and length, + 1/8 inch thickness 18%, + 2% (at time of manufacturer) 4, 6, 6, 8, 10, 12, 14 Classed as Heavy Timber, can achieve as high as 2 hour FRP Up to 1 rectangle or diameter without additional reinforcement, larger possible with screw reinforcement VISUAL CHARACTERISTICS: Surface Quality Species Architectural Appearance Non-visible Douglas Fir, Select Structural, #1, #2 Douglas Fir, Select Structural, #1, #2 Appearance Wane Not permitted Up to 0.25 Permitted Knots Ingrown knots permissible, broken-off edge knots and fallingout knots up to 1/2" permissible. Ingrown, up to 3/4" diameter permissible, broken-off edge knots and falling-out knots up to 1" permissible. Douglas Fir, Select Structural, #1, #2 In accordance with strength grading Checking Small checking permitted Small checking permitted Some permitted Resin Pockets Shorter than 1" Shorter than 2" Permitted Pitch Streaks Not permitted Some permitted Permitted Shake Permitted if not visible Permitted if not visible Permitted Discoloration No Stain permitted Minimal Stain permitted Permitted Sporadic up to 18" Pith Permitted Permitted permitted Compression Wood Permitted if sporadic Permitted Permitted Decay Not permitted Not permitted Not permitted Sapwood Permitted Permitted Permitted Surfacing Quality No chipping permitted Some chipping permitted Chipping permitted

6 Mid-Columbia Nail Laminated Timber Floor Spans Application: Lumber species: Floor Single span, Uniformly Distributed Loads Douglas Fir NLT Thickness, in Structural Floor Live Load, psf Nominal Actual Lumber Grade /16 Select Structural No No /16 Select Structural No No /3/16 Select Structural No No /16 Select Structural No No /16 Select Structural No No DESIGN CRITERIA: Strength - Floor Live load (C D=1) of 30, 40, 50, 60, 75, 80, 100 and 125 lbs. per sq. ft., plus 2 floor topping of normal weight concrete with 20 lbs. per sq. ft. dead load. Deflection - Limited in span in inches divided by 360 for Floor Live Load only. C M=1, C t=1, C r=1.15 FABRICATION: Nail Laminated Timber is fabricated to comply with the requirements of 2015 International Building Code Section NOTE: The tabulated allowable spans in feet and inches are computed using standard engineering procedures (2015 NDS allowable stress design) for single span with uniformly distributed loads. These spans are governed by the lumber design values for strength or stiffness of F b, F v or MOE. **All NLT Span Tables Engineered/Certified by the WWPA, Portland, Oregon

7 Mid-Columbia Nail Laminated Timber Floor Spans Application: Floor Two Equal Spans Continuous, Uniformly Distributed Loads on both Spans Lumber species: Douglas Fir DESIGN CRITERIA: NLT Thickness, in Structural Floor Live Load, psf Nominal Actual Lumber Grade /16 Select Structural No No /16 Select Structural No No /3/16 Select Structural No No /16 Select Structural No No /16 Select Structural No No Strength - Floor Live load (C D=1) of 30, 40, 50, 60, 75, 80, 100 and 125 lbs. per sq. ft., plus 2 floor topping of normal weight concrete with 20 lbs. per sq. ft. dead load. Deflection - Limited in span in inches divided by 360 for Floor Live Load only. C M=1, C t=1, C r=1.15 FABRICATION: Nail Laminated Timber is fabricated to comply with the requirements of 2015 International Building Code Section NOTE: The tabulated allowable spans in feet and inches are computed using standard engineering procedures (2015 NDS allowable stress design) for single span with uniformly distributed loads. These spans are governed by the lumber design values for strength or stiffness of F b, F v or MOE

8 Mid-Columbia Nail Laminated Timber Floor Spans Application: Lumber species: Floor with 2 Concrete Topping Single span, Uniformly Distributed Douglas Fir NLT Thickness, in Structural Floor Live Load, psf Nominal Actual Lumber Grade /16 Select Structural No No /16 Select Structural No No /3/16 Select Structural No No /16 Select Structural No No /16 Select Structural No No DESIGN CRITERIA: Strength - Floor Live load (C D=1) of 30, 40, 50, 60, 75, 80, 100 and 125 lbs. per sq. ft., plus 2 floor topping of normal weight concrete with 20 lbs. per sq. ft. dead load. Deflection - Limited in span in inches divided by 360 for Floor Live Load only. C M=1, C t=1, C r=1.15 FABRICATION: Nail Laminated Timber is fabricated to comply with the requirements of 2015 International Building Code Section NOTE: The tabulated allowable spans in feet and inches are computed using standard engineering procedures (2015 NDS allowable stress design) for single span with uniformly distributed loads. These spans are governed by the lumber design values for strength or stiffness of F b, F v or MOE

9 Mid-Columbia Nail Laminated Timber Floor Spans Application: Floor with 2 Concrete Topping Two Equal Spans, Uniformly Distributed Loads on Both Spans Lumber species: Douglas Fir NLT Thickness, in Structural Floor Live Load, psf Nominal Actual Lumber Grade /16 Select Structural No No /16 Select Structural No No /3/16 Select Structural No No /16 Select Structural No No /16 Select Structural No No DESIGN CRITERIA: Strength - Floor Live load (C D=1) of 30, 40, 50, 60, 75, 80, 100 and 125 lbs. per sq. ft., plus 2 floor topping of normal weight concrete with 20 lbs. per sq. ft. dead load. Deflection - Limited in span in inches divided by 360 for Floor Live Load only. C M=1, C t=1, C r=1.15 FABRICATION: Nail Laminated Timber is fabricated to comply with the requirements of 2015 International Building Code Section NOTE: The tabulated allowable spans in feet and inches are computed using standard engineering procedures (2015 NDS allowable stress design) for single span with uniformly distributed loads. These spans are governed by the lumber design values for strength or stiffness of F b, F v or MOE

10 Mid-Columbia Nail Laminated Timber Roof Spans Application: Lumber species: Roof Single Span, Uniformly Distributed Loads Douglas Fir Roof Live Structural Roof Snow Load, psf Load, psf Lumber Grade Nominal Actual /16 Select Structural No No /16 Select Structural No No /3/16 Select Structural No No /16 Select Structural No No /16 Select Structural No No DESIGN CRITERIA: Strength - Roof Live load (C D=1.25) of 20 and Roof Snow Load (C D=1.15) of 20, 25, 30, 40, 60 and 100 lbs. per sq. ft., plus 10 lbs. per sq. ft. dead load. Deflection - Limited in span in inches divided by 240 for Floor Live Load only. C M=1, C t=1, C r=1.15 FABRICATION: Nail Laminated Timber is fabricated to comply with the requirements of 2015 International Building Code Section NOTE: The tabulated allowable spans in feet and inches are computed using standard engineering procedures (2015 NDS allowable stress design) for simply supported single span with uniformly distributed loads. These spans are governed by the lumber design values for strength or stiffness of F b, F v or MOE

11 Mid-Columbia Nail Laminated Timber Roof Spans Application: Roof Two Equal Spans Continuous, Uniformly Distributed Loads on Both Spans Lumber species: Douglas Fir Roof Live Structural Roof Snow Load, psf Load, psf Lumber Grade Nominal Actual /16 Select Structural No No /16 Select Structural No No /3/16 Select Structural No No /16 Select Structural No No /16 Select Structural No No DESIGN CRITERIA: Strength - Roof Live load (C D=1.25) of 20 and Roof Snow Load (C D=1.15) of 20, 25, 30, 40, 60 and 100 lbs. per sq. ft., plus 10 lbs. per sq. ft. dead load. Deflection - Limited in span in inches divided by 240 for Floor Live Load only. C M=1, C t=1, C r=1.15 FABRICATION: Nail Laminated Timber is fabricated to comply with the requirements of 2015 International Building Code Section NOTE: The tabulated allowable spans in feet and inches are computed using standard engineering procedures (2015 NDS allowable stress design) for simply supported single span with uniformly distributed loads. These spans are governed by the lumber design values for strength or stiffness of F b, F v or MOE

12 710 C STREET CULVER, OREGON RANDY KING, CHIEF EXECUTIVE OFFICER RANDY@MID-COLUMBIALUMBER.COM MICHAEL FOGGIA DIRECTOR OF SALES, MARKETING AND BUSINESS DEVELOPMENT MIKE@MID-COLUMBIALUMBER.COM CHRISTY HOLLENBACK SALES & PURCHASING MANAGER CHRISTY@MID-COLUMBIALUMBER.COM LONGER STRONGER STRAIGHTER