Available in 600mm increments from 2.4m to 13.For quality assurance the Futurebuild range is manufactured with independent audit processes and product certification.Īll Futurebuild LVL products are manufactured using a type ‘A’ bond with less than 0.5mg/L formaldehyde emissions from the final product (equivalent to E0). Characteristic Properties are determined in accordance with AS/NZS 4063.2:2010 and so comply with the provisions of the New Zealand Building Code through clause 2.3 for engineering design in accordance with NZS3603:1993 Timber Structures Standard.įuturebuild LVL is committed to manufacturing innovative engineered building products. Solid Futurebuild LVL products are manufactured in accordance with AS/NZS 4357, Structural Laminated Veneer Lumber. Select the correct table for the supported floor joist condition (simple or. computeIT ®software suite available for specific engineering design LVL 2.0E Floor Beam Quick Reference Tables.Supported by technical support and software from Futurebuild LVL.Residential Span Tables available - refer brochures below.Available Forest Stewardship Council® (FSC®) certified (FSC® C007103) upon request.Manufactured from sustainably-grown NZ plantation pine.Stringent quality control – EWPAA certified.Each piece is branded for ease of identification How to Use an LVL Span Table Calculator: Gather Information: Uniform Load: Determine the expected load per linear foot (e.g.Untreated and H3.1 LOSP treated product available made to order subject to minimum volumes and lead times, Contact us for further information.(the tables permit a bearing length of up to 3.5 inches, but since 1.5 is probably the worst case that you’ll encounter for joist or rafter bearing, it’s a safe value. Readily available and stocked H1.2 treated using a glue line and surface spray treatment to the requirements of NZS 3640 Table 9.1 in Span Tables for Joists and Rafters (Figure 5) gives a required compression value of 237 psi for a span of 16 feet and bearing length of 1.5 inches.Veneers are bonded together using type 'A' (marine) bond, known for long-term durability in structural applications.Straight, true, strong, lightweight and dimensionally stable.hySPAN is not intended to support brickwork or other heavy masonry products. hySPAN is suitable for all structural applications in residential, commercial, industrial and rural buildings subject to design verification. Lateral support of beam compression edge is required at intervals of 24 o/c. 3100F b-2.0E 3 ¹ WEST FRASER LVL ALLOWABLE DESIGN VALUES 1. All 16, 18 and 24 beam depths are to be used in multiple member units only. You'll also need a new column the same size directly below it in the basement. The intermediate bearing post will have 18,000+ pounds on it, so you'll need a PSL or steel column. Prescriptive Design provisions found in 3.3.1.6.1 for sawn lumber floor joists are the same except that for roof live loads and ground snow loads less than or equal to 20 psf and 30 psf, respectively, cantilevers shall not exceed one-eighth of the joist span for lumber joists supporting only a roof with a clear span of 28 feet or less.HySPAN ® laminated veneer lumber (LVL) is easy to work with using traditional building tools and is clearly branded for easy identification and your guarantee of quality. Lateral support of beam is required at bearing locations. The best solution to open this up is to run a 3 ply 11-7/8' LVL full length but with an intermediate support in the middle making two 9.5' spans with 1 beam. If the end of the cantilever supports a non-loadbearing non-shear wall, then the maximum overhang length is limited to one-fourth of the joist span (Figure 3, below).Ĭonsult manufacturer’s recommendations if using I-joists. The cantilevered joist must be located directly over studs unless the top plates are designed to carry the loads. When designed for additional loads, cantilevers are limited to 4 times the depth of the joist (Figure 2, below). For example, the Engineered Design provisions for sawn lumber floor joists in 2.3.1.6 state the maximum overhang length is limited to the depth of the joist if the end of the cantilever supports a load bearing wall or shear wall (Figure 1, below). The designer seeks to find the worst combination of loading that will impose maximum shear, bending, or deflection in the member.Īmerican Wood Council’s 2001 Wood Frame Construction Manual has engineered and prescriptive provisions that may give guidance for typical cantilever cases. Because the system is composed of two pieces: the cantilever span, and the back span, the placement and magnitude of load on these sections singly or combined will cause different stresses to develop in the member. Often the load is not a single uniform distribution over the length of the member, and other additional loads are present, such as point loads at the end of the member. Design of cantilever beams involves many variables including load, cantilever span and interior or back span. An engineer or architect should design cantilever members.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |