Murphy LVL Installation Guide

Transcription

1 Murphy LVL Installation Guie

2 Murphy Company For over 100 years, Murphy Company has manufacture woo proucts for iscerning customers who eman quality. From green an ry softwoo veneer (White City, OR an Elma, WA), to softwoo plywoo (Rogue River, OR), Harwoo Plywoo (Eugene, OR), or Engineere Douglas-fir LVL (Sutherlin, OR), we unerstan our customers nees an provie solutions for emaning market conitions. Controlling the entire process, from log to finishe prouct, allows us to customize your prouct at a competitive price. Douglas fir LVL Proviing the superior performance an urability of engineere woo, Murphy Company LVL is perfectly suite to spans bearing heavy loas an multi-span applications. Common problems associate with lumber sizes like ecrease imensional stability an uniformity o not apply to our LVL, which utilizes ultrasonically teste an grae Douglas fir veneer. Engineere for Quality Checking is minimize because Murphy Company LVL is cure in a controlle process in which water-proof ahesives boost stability an reuce warps an twists. All proucts are machine-rippe to generate uniform size an rigi, flat surfaces with inherently superior nail-holing characteristics. We are confient that our proucts will provie our customers with consistent high performance when hanle an installe in accorance with our installation instructions. Teste for strength anngineere for quality, Murphy Company LVL represents our ongoing commitment to unsurpasse performance an service. Murphy Company LVL is thir-party teste by the APA (The Engineere Woo Association), a leaing inustry quality assurance organization. General notes for this prouct guie: 1. All tables assume ry conitions. Calculations are base on NDS an IBC an ICC-ESR# Lateral support of the compression ege of all beams must be provie at 24 on center. 3. Application tables inclue live loa reuctions applie in accorance with 2012 IBC. 4. Tables apply to Dea, Floor Live, Roof Live an Snow loas. Lateral loas must be consiere by the builing esigner. 5. This esign manual is intene to be use for preliminary esign purposes; a complete structural analysis shoul be performe by a esign professional. 6. Beams that are 13/4 x 16 an eeper require multiple plies. Murphy Company LVL Installation Guie - PG. 2

3 LVL Installation Connection Details Beam-to-Beam Connection Bearing on Woo Column Bearing for Door or Winow Heaer Install hanger per manufacturer's instructions. Hanger must istribute loa to each ply of the assembly. Contact Murphy Company technical support with questions. Beam Pocket in Masonry Wall Install column cap per manufacturer's instructions; verify cap an column capacity. Bearing on Exterior Wall Strap per builing coe if top plate is not continuous over heaer. Soli Blocking at Post Verify plate bearing capacity. En grain LVL blocking; secure blocking to rimjoist Protect LVL from moisture with a vapor barrier an airspace. LVL shoul not irectly contact concrete. LVL shoul not irectly contact concrete. Verify plate bearing capacity. Provie a continuous loa path to concrete. Minimum Nail Spacing for nails installe parallel to the glueline Nail Size Single Row Multiple Rows 1 8 Common (2 1 / 2") 3" 4" 10 Common (3") 4" 5" 12 Common (3 1 / 4") 4" 5" 16 Common (3 1 / 2") 5" 6" 2 1. Offset multiple rows 1 / 2" an stagger nails on equal-equal layout 2. Minimum nail spacing may be reuce to 5" for 1 3 / 4" wie members 3. Nail penetration shall not excee 2 1 / 2" for 10 an 12 nor 2" for 16 Murphy Company LVL Installation Guie - PG. 3

4 LVL Installation Multiple Piece Assembly & Sie Loa Capacity When assembling more than one LVL ply into a single loa-bearing beam, follow the appropriate guielines: Detail A Detail B Detail C Detail D 3 1 / 2" wie 2-ply beams 5 1 / 4" wie 3-ply beams 7" wie 4-ply beam 7" wie 4-ply beam Detail E 7" wie 2-ply beam Simpson SDS 1 / 4" x 6" screws (or equal) 3 1 / 2" 3 1 / 2" Uniform Sie-loa Capacity (plf) Connection 2 Rows of 10 3 Rows of Nails 10 2 Rows of 1 / 2" ia. 2 Rows of 1 / 2" ia. Detail Box Nails at 12" oc Box Nails at 12" oc Bolts at 24" oc Bolts at 12"oc A B C D Refer to Simpson Strong-Tie catalog for SDS capacities E Notes: 1. Design values base on 2005 NDS an PR-L283 APA an ICC-ES ESR-2913 Prouct Report. 2. Dry conitions of use. 3. Design values may be increase for loa uration; see 2006 NDS. 4. Verify loa capacity of framing member in aition to connection esign. 5. Use minimum two rows of fasteners for up to 11 7 / 8" LVL beam epth an minimum three rows of fasteners for 14" to 18" LVL beam epths. For 20" to 24" LVL beam epths, contact Murphy Company. Connection of Multiple Pieces for Top-loae Beams Top-loae beam Top-loae beam 2 1 /2" 2 1 /2" 2 1 /2" 12" o.c. 2 1 /2" 12" o.c. Minimum of 2 rows of 16 (3 1 / 2") nails at 12" o.c. for 9 1 / 2" through 11 7 / 8" beams. Minimum of 3 rows of 16 (3 1 / 2") nails at 12" o.c. for 14" through 24" beams. Murphy Company LVL Installation Guie - PG. 4

5 LVL Installation Notching Details Shear Design Equations for Notche an Tapere LVL Beams Slope Bearing En Compression sie Slope En Cut for Roof Drainage 1/3 of the span e > 0.6 f v = 3V 2b When e < : f v = 3V 2b - -e e When e > : f v = 3V 2b Compression-sie Notch Tension-sie Notch 1/3 of the span > max. e When e < : f v = 2b - When e > : f v = 3V 2b 3V - e > max. f v = 3V 2b 2 f v = shear stress (psi) V = shear force at notch (lbf) b = with of beam (in.) = epth of beam (in.) = effective epth as shown (in.) e = length of notch as shown (in.) Murphy Company LVL Installation Guie - PG. 5

6 LVL Installation Permissible Hole Locations for LVL Beams Uner Uniform Loas Uniform loa (plf) 1/3 1/3 1/3 Minimum horizontal spacing = 2 x iameter of the largest hole 1/3 span 1/3 span 1/3 span = Zones where hoiaontal holes are permitte for passage of wires, conuit, etc. 1. For beam epth of 3 1 / 2", 5 1 / 2" an 7 1 / 4", the maximum hole iameter is 3 / 4", 1 1 / 8" an 1 1 / 2", respectively. For eeper beams, the maximum iameter is 2". 2. The maximum number of holes for each span is limite to Holes shoul not be cut in cantilevers. Notes: Murphy Company LVL Installation Guie - PG. 6

7 General Information Clear Sealer All Murphy Company LVL is fully seale with a factory applie inustry-leaing premium grae sealer. The sealer repels water absorption an improves urability uring typical istribution yar an jobsite storage conitions. FSC Certification Murphy Company has achieve Forestry Stewarship Council Chain of Custoy Certification. This certification ensures that Murphy s customers have a verifiable connection between their companies an certifie manufacturers who ahere to the requirements of the FSC certification program. Murphy Company LVL proucts are available with this chain of custoy certification. Builers who utilize proucts manufacture from forests certifie by FSC, with an intact chain of custoy, can qualify for points in the US Green Builing Council s LEED system, a thir-party certification program an benchmark for the esign, construction, an operation of high-performance green builings. Sizing Software To better assist engineers, esigners, an specifiers, we ve partnere with Calculate Structure Designs, an inustry leaer in software evelopment. istruct is a state of the art layout, esign, an structural analysis enterprise solution that combines layout/rafting, single member esign, reporting, an an increible real time 3D experience while supporting a selection of proucts, incluing I-joists, LVL, lumber, walls, rimboar, hangers, etc. Hanling an Storage Guielines LVL shoul be protecte from the weather an store lying flat. Prouct must not be store in contact with the groun. Store LVL in wrappe bunles, provie air circulation an support bunles with 2x4 stickers. Protect from the weather on the job site both before an after installation. LVL is intene for use in covere, ry conitions only. Except as escribe in this prouct guie, LVL shoul not be cut, rille or notche. Do not install wet or visually amage prouct. Once a factory seale LVL prouct is cut, a coat of water repellent sealer shoul be applie to the freshly cut en to prevent moisture from entering the cut en. Murphy Company LVL Installation Guie - PG. 7

8 rev 5/17 Technical Support While supplying a superior prouct, Murphy Company is eicate to proviing an unpreceente level of support for our customers. Phone support, bulletins, a broa library of technical materials, an other relevant information are available. Our highly traine technical services staff, le by inustry veterans, combine with extensive knowlege an state-of-the-art tools, assist with esign or construction questions an provie full support for our esign software. Engineere Woo 412 West Central Ave. OFFICE Sutherlin, OR FAX