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HomeMy WebLinkAboutPermit File BLD-2020-0357 1609 R Avenue (3) ESICC EVALUATION SERVICE Most Widely Accepted and Trusted ICC-ES Evaluation Report ESR-2504 Reissued May 2019 Revised October 2019 This report is subject to renewal May 2020. www.icc-es.orq I (800) 423-6587 I (562) 699-0543 A Subsidiary of the International Code Council° DIVISION: 06 00 00—WOOD, PLASTICS AND The attributes of the wood trusses have been verified as COMPOSITES conforming to the provisions of (i) CALGreen Sections Section: 06 17 00—Shop-Fabricated Structural Wood A4.404.3 for efficient framing techniques; (ii) ICC 700-2015 Section 608.1(b), 11.608.1(b) and 12.1(A).608.1(b) for REPORT HOLDER: resource-efficient materials; and (iii) ICC 700-2012 Section 608.1(2), 11.608.1(2) and 12.1(A).608.1 for resource- SWEET'S JOISTS, INC. efficient materials. Note that decisions on compliance for those areas rest with the user of this report. The user is ADDITIONAL LISTEE: advised of the project-specific provisions that may be contingent upon meeting specific conditions, and the WEB JOIST NORTHWEST CORP. verification of those conditions is outside the scope of this report. These codes or standards often provide EVALUATION SUBJECT: supplemental information as guidance. WEB JOISTT"' TRUSSES 3.1.1 Version 1 Truss: Eight Version 1 trusses are recognized: WJSS, WJ21, WJ24, WJ27, WJ28 WJ21W, 1.0 EVALUATION SCOPE WJ24W and WJ28W. The chords are 1 t/2-by-31/2-inch (38 by 89 mm) or 11/2-by-5112-inch (38 by 140 mm) 1.1 Compliance with the following codes: solid-sawn lumber.The webs are either steel tubing or steel • 2018,2015, and 2012 International Building Code°(IBC) angles. • 2018, 2015, and 2012 International Residential Code° 3.1.2 Version 2 Truss: One Version 2 truss is recognized: (IRC) WJ-L6. The chords are 21/2-by-31/2-inch (63.5 by 89 mm) LAM-CHORD. The webs are either steel tubing or steel Properties evaluated: angles. • Structural 3.2 Materials: • Fire resistance 3.2.1 Chords: Chords consist of either solid-sawn lumber 1.2 Evaluation to the following green code(s) and/or or LAM-CHORD.The chords have glued finger joints,which standards: are manufactured and tested daily in accordance with the manufacturer's quality control manual, to form continuous • 2016 California Green Building Standards Code chord members. Chords have routs in the wide face to (CALGreen),Title 24, Part 11 accept web members, and the routs comply with tolerance • 2015, and 2012 ICC 700 National Green Building limits specified in the manufacturer's quality control manual. StandardTM (ICC 700-2015, ICC 700-2012 and ICC 3.2.1.1 Solid-sawn Lumber: Lumber grade is either 700-2008) machine-stress-rated (MSR)or Select Structural. The MSR Attributes verified: lumber species is either Douglas fir—larch, hem-fir,■ See Section 3.1 spruce- pine-fir, Englemann spruce—lodgepole pine, or lodgepole pine.Lumber grades comply with the grading rules specified 2.0 USES in Tables 4A and 4C of the American Wood Council (AWC) The Web Joist trusses described in this report are used as National Design Specification (NDS) Supplement and the structural framing members in floor and roof assemblies. manufacturer's quality control manual.The wood species of the Select Structural lumber is Douglas fir—larch. 3.0 DESCRIPTION 3.2.1.2 LAM-CHORD: LAM-CHORD is a manufactured 3.1 General: laminated lumber complying with ANSI A 190.1, and each The Web Joist trusses are Warren-style, pin-connected piece of ripped LAM-CHORD material conforms with visual trusses that have either parallel, tapered, or pitched-chord grading rules specified in the manufacturer's quality control members. The trusses have wood chords, steel webs, and manual. Lumber species is either Douglas fir or hem-fir. steel pin web-to-chord connectors. There are two versions 3.2.2 Webs: The steel tubing truss webs are formed from of the trusses: Version 1 Truss and Version 2 Truss. See welded,galvanized, round steel tubing conforming to ASTM Table 1 and Figure 1 for a description of truss components. A500, Grade C,with minimum yield and tensile strengths as ICC-ES Evaluation Reports are not to be construed as representing aesthetics or any other attributes not specifically addressed,nor are they to be construed 71 as an endorsement of the subject of the report or a recommendation for its use.There is no warranty by ICC Evaluation Service,LLC,express or implied,as mi�� ANS� to any finding or other matter in this report,or as to any product covered by the report. CODE FaDTio uH'AL Copyright©2019 ICC Evaluation Service,LLC. All rights reserved. Page 1 of 7 ESR-2504 I Most Widely Accepted and Trusted Page 2 of 7 specified in the manufacturer's quality control manual. The 4.3 One-hour Fire-resistance-rated Roof and Floor- tubing is galvanized with a minimum G60 galvanization ceiling Assemblies: coating weight in accordance with ASTM A787. The steel Web Joist trusses used in one-hour fire-resistance-rated angle truss webs are cold-formed from galvanized steel coil roof and floor-ceiling assemblies must be installed in conforming to ASTM A653 SS Grade 33, with a minimum accordance with Section 4.2.2.4 of ESR-1338, or 2018, G60 galvanization coating weight and minimum yield and 2015 and 2012 IBC Table 721.1(3) Item No. 21-1.1. tensile strengths as specified in the manufacturer's quality control manual. 5.0 CONDITIONS OF USE 3.2.3 Pin Connectors: The pins are 31/2-or 51/2-inch-long The Web Joist trusses described in this report comply with, (89 mm or 140 mm), solid steel pins, having either or are suitable alternatives to what is specified in, those 3/8- 1/2 5/8 or 3/4-inch (9.5, 12.7, 15.9 or 19.1 mm) codes listed in Section 1.0 of this report, subject to the diameters.The 3/8-and 1/2-inch-diameter(9.5 and 12.7 mm) following conditions: pins are ASTM A449 steel with heat treatment; the 5/8-and 5.1 Installation complies with this report, the 3/4-inch-diameter(15.9 and 19.1 mm) pins are ASTM A307 manufacturer's published installation instructions and steel. the applicable code. In the event of conflicts between 3.2.4 Bearing Clips: Steel bearing clips are No. 13 gage the manufacturer's published installation instructions [0.089-inch-thick (2.3 mm)], cold-formed ASTM A1011, SS and this report,this report governs. designation, Grade 40; or ASTM A653, SS designation, 5.2 Structural design information for the use of the trusses Grade 40. must be indicated on the construction documents 4.0 DESIGN AND INSTALLATION submitted with the permit application.The construction documents and the design configurations must be 4.1 Installation: consistent with this report, and must be prepared by a Installation of the Web Joist trusses described in this report registered design professional where required by the must comply with the applicable code requirements, this statutes of the jurisdiction in which the project is to be report and the manufacturer's published installation constructed. instructions. The manufacturer's published installation 5.3 Cutting of the chords of the trusses is not permitted. instructions must be available at the jobsite at all times 5.4 Evaluation of the trusses is limited to interior dry use during installation. conditions. Dry conditions of use are those conditions 4.2 Design: of use represented by moisture content that is less than 4.2.1 General: The trusses must be designed using 19 percent in the sawn lumber truss chords. accepted truss design principles and this report. 5.5 The trusses are manufactured by Web Joist Northwest 4.2.2 Chord Members: Table 2 provides section Corp. in Chehalis,Washington, under a quality-control properties and Table 3 provides allowable unit stresses for program with inspections by ICC-ES and PFS the truss chord members. Corporation (AA-652). 4.2.3 Web Members: Table 5 provides allowable tension 6.0 EVIDENCE SUBMITTED and compression loads for truss web members. Data in accordance with the ICC-ES Acceptance Criteria for 4.2.4 Pin Connectors: Table 4 provides allowable loads Pin-connected Open-web Trusses with Wood Chords and for pin connectors bearing on wood. The allowable load for Tubular or Angular Steel Webs(AC306), dated April 2019. the resultant of parallel and perpendicular pin loading on the 7.0 IDENTIFICATION chord member must be determined using Equation 12.3-11 7.1 Each Web Joist truss bears a stamped identification in Section 12.3.4 of the 2018 and 2015 NDS(Equation 11.3- label with the product name (Web Joist Truss), 11 in Section 11.3.4 of the 2012 NDS). manufacturer's name (Web Joist Northwest Corp.), 4.2.5 Bearing Assembly: Table 6 provides allowable manufacturer's city and state, the evaluation report reactions at supports with bearing clips. See Figure 2. number (ESR-2504), and the name of the inspection agency (PFS Corporation). In addition, the chords of 4.2.6 Duration of Load: Allowable unit stress of chord the trusses are labeled with the applicable lumber members may be adjusted for duration of load in grade stamp. accordance with Section 2.3.2 of the NDS. Allowable parallel-to-grain wood bearing loads on pins (Table 4) may 7.2 The report holder's contact information is the following: be adjusted for duration of load in accordance with Section SWEETS JOISTS, INC. 2.3.2 of the NDS, up to a maximum load duration factor,CD, 118 BOROVEC ROAD of 1.60. No other design values for the web joist trusses are CHEHALIS,WASHINGTON 98532-8714 to be increased for duration of load. (360)748-1173 4.2.7 Repetitive Member Use:When trusses comply with www.webioist.com code-defined repetitive member use according to Section Bruce(awebioist.com 4.3.9 of the NDS,the allowable parallel-to-grain tension and 7.3 The Additional Listee's contact information is the compression stresses noted in Table 3 may be increased 7 following: percent for MSR and LAM-CHORD lumber chords. WEB JOIST NORTHWEST CORP. 4.2.8 Deflection: Deflection of a uniformly loaded truss is 118 BOROVEC ROAD approximated with the classic, uniformly loaded, simple- CHEHALIS,WASHINGTON 98532 span beam-deflection formula. The moment of inertia of the (360)748-1173 truss consists of only the top and bottom chord members, without considering reduced areas from pins or routs. BGR-2504 | Most Widely Accepted and Trusted Page 3of7 TABLE 1—COMPONswTSop WEB JOIST VERSION 1 AND VERSION uTRUSSES Version Version Component 1Tmss uTmss Wioa WJ21 WJ24 WJe7 WJzo WJ21W WJ24W WJomw WJ'L6 _ oo|.Str. oF 1.5"x3o^ vsa — — — — — — — — MSRu1O0f-1.8E1.o"x3.o^ YES vB YES — — — — — — MSR24O0f-2.OE 1.5^x3.5^ -- -- YES YES YES -- -- -- --- Chords Manu7onf-o.cE1z'xn.s" -' -' -' vso -' -' -' -' -' maRuaoof-u.oE1.o"xo.o^ — — — — YES — — — — MSR21O0f-1.8E1a^xas^ — — — — — YES YES — — Manu4onf-ooE 1.5^x5a^ — — — — — — YES vso — MaRuaoof-u.oE1.o"xo.o^ — — — — — — — vsa --- LAM-CHORD 2a^x3.5^ — — — — — — — — YES � � `�^oiom� & - Diameter vsa vso v�a vsa YES - -- -- --- Pins `/8^Diameter xn,6^Long -' -' -' -' -' YES YES YES -' , ^oiameterx31/2"Long — — — — — — — — YES , YES YES YES YES YES — — — — vv^oiam��,xo6^uong — — — — — vEa YEa vsa — �^oiamc�rxn,��ong _ _ _ _ _ _ — — YES `�^oiam��,xo,6^uong 1.000"o.o. 1eGa. YES YES YES YES YES YES YES YES YES 1.000"o.o.'1oGa. YES YES YES YES YES YES YES YES YES 1.000"oo. 16Ga. YES YES YES YES YES YES YES YES — 1.ouo^o.o. 14Ga. vsa vsa YES vsa YES YES YES vsa -- 1.1cn^o.o.'1sGa. YES YES YES YES YES YES YES YES --- Webs 1.125^oo. 13Ge. vsa YES YES YES YES YES YES vso --- (Tubing) 1.250^O.o. 19Ga. — — — — — — — — YES 1.250^o.o. 18aa. — — — — — — — — ,Ea 1.250^oo. 16Ge. — — — — — — — — YES 1.250^o.o. 14Ga. — — — — — — — — YES 1.500^o.o. 1eaa. — — — — — — — — YES 1.500^oo. 14Ge. — — — — — — — — YES 1.500^o.o. 13Ga. — — — — — — — — YES Webs 0.75" xo.75" xo.10" Yes YES YES YES YES YES YES YES — (2-Ang/es) 1.125"x 1.125"x0.10" — — — — — — — — YES Bearing Angle Clip(A ) vB YES vB YES YES YES ,B YES --- Clips Angle Clip(A2) — — — — — — — — vB For m: 1 in.~uo.4mm. VVEB JOIST TI Wood & steel open web trusses Fearing CU|m III Top ChoFd / /' .7 � � C, y ^ Webs Rout u o u o o � / �- PioioHnHolo �MSR DoVum Chord W/ ESR-2504 I Most Widely Accepted and Trusted Page 4 of 7 TABLE 2-CHORD SECTION PROPERTIES' Chord Pin Rout Areas Section Version Size Dia. Width (inches2) Modulus (inches) (inches) (inches) Tension Compression (inches3) Ver. 1 Depth= 1.5 no pin no rout 5.25 5.25 1.31 2x4 by 0.375 0.219 3.69 4.92 1.21 Width=3.5 0.625 0.375 2.73 4.69 1.09 Ver. 1 Depth= 1.5 no pin no rout 8.25 8.25 2.06 2x6 by 0.375 0.219 5.94 7.92 1.95 Width=5.5 0.625 0.375 4.48 7.69 1.78 Ver.2 Depth=2.5 no pin no rout 8.75 8.75 3.65 3x4 by 0.500 0.313 6.38 7.97 3.29 Width=3.5 0.750 0.438 5.36 7.66 3.10 For SI: 1 in=25.4 mm, 1 in2=645.16 mm2, 1 in3=16387 mm3. 1The section modulus is about the neutral axis of the chord member and is used for combined stress analysis of the chord member when chord supports uniform load between panel points. TABLE 3-ALLOWABLE CHORD UNIT STRESS IN POUNDS PER SQUARE INCH' Version Lumber Grade2 Tension Compression Extreme Fiber Modulus of Parallel to Parallel to In Bending Elasticity Grain(Ft) Grain(F0) (Fb) (E x 106) Sel.Str.DF3 1,5004 1,9554 2,1754'5 1.90 MSR 2100f-1.8E3 1,575 1,875 2,1005 1.80 Ver. 1 MSR 2400f-2.0E 1,925 1,975 2,4005 2.00 MSR 2700f-2.2E 2,150 2,100 2,7005 2.20 MSR 2850f-2.3E 2,300 2,150 2,8505 2.30 Ver.2 LAM-CHORD 2,050 1,975 2,4006 2.10 For SI: 1 psi=6.895 kPa. 'Other allowable working stresses for solid sawn chords are provided in Tables 4A and 4C of the NDS. 2Lumber grades are indicated by grade stamps on the chord members. 3The Select Structural Douglas fir-Larch and MSR 2100f-1.8E chord grades are available only for 2x4 chords. 'The Ft.F0 and Fb values given for 2x4 Select Structural Douglas fir-Larch chord members have already been adjusted by the Size Factor, CF. 5Fb may be increased 10 percent for flatwise use. 6Fb may be increased 10 percent for laminating factor. TABLE 4-ALLOWABLE WOOD BEARING LOADS ON PINS IN POUNDS1'2,3,4 Angle of Load to Version 1 Truss5 Version 2 Truss6 Grain of Chord 3/6"Pin 5/6"Pin 1/2"Pin 3/4 Pin Parallel 1,320 2,540 2,545 3,665 Perpendicular 800 900 1,445 1,730 For SI: 1 in=25.4 mm, 1 lbf=4.448 N. 'Parallel:Adjustments for duration of load per Section 2.3.2 of NDS are applicable,up to a maximum load duration factor,CD,of 1.60. 2Perpendicular:Adjustments for duration of load are not applicable. 3The pins are subjected to loads both parallel and perpendicular to the length of the chord. The allowable load for the resultant of these two forces acting on the pin may be determined from the Hankinson formula based on the controls in this section. 'The minimum end distance between the pin and end of the chord shall be 1.75 inches for Version 1 truss and 2.25 inches for Version 2 truss for a pin force acting away from the end of the chord and 6 inches for a pin force acting toward the end of the chord. 5Values are for Douglas fir-larch(DF-L),hem-fir(HF),southern pine(SP),spruce-pine-fir(SPF),Englemann spruce/lodgepole pine (ES/LP),or lodgepole pine(LP). 'Values are for hem-fir and may be increased 10 percent for Douglas fir-larch. ESR-2504 I Most Widely Accepted and Trusted Page 5 of 7 TABLE 5—ALLOWABLE WEB MEMBER LOADS IN POUNDS" Diameter(inches) Design Wall Load Version 1 Truss Version 2 Truss -Gauge No. Thickness Condition WJSS,WJ21,WJ24,WJ27, WJ-L6 WJ28,WJ21W,WJ24W and WJ28W (Ga.color or No.) (inches) 3/8"Pin 5/8"Pin 1/2"Pin 3/4"Pin 1.000-19 0.040 Tension 1,437 1,348 1,917 (Blue or None) Compression 1,437@<-36.5" 1,791@<-31.6" 1,831@<-30.2" 1.000-18 0.047 Tension 1,721 1,713 2,295 (Black or8) Compression 1,721@<-35.6" 2,457@<-25.6" 2,295@<-27.8" 1.000-16 0.063 Tension 2,466 (Red or 6) Compression 2,748@<-30.1" 1.000-14 0 082 Tension 3,226 (Green or 4) Compression 5,185@<-15.7" 1.125-16 0.063 Tension 2,350 (Red or 6) Compression 3,995@s25.2" 1.125-13 0.094 Tension 3,771 (Yellow or 3) Compression 6,452@<_19.5" 2 Angles 0.100 Tension 3,512 0.75"x0.75" Compression 1,220@<-20.0" 1.250-19 0.040 Tension 1,917 2,129 (Blue or None) Compression 1,917@<-44.2" 2,487@<-35.2" 1.250-18 0.047 Tension 2,295 2,431 (Black or 8) Compression 2,295@<-43.2" _2,478@<40.7" 1.250-16 0.063 Tension 3,206 3,471 (Red or 6) Compression 3,206@<-40.9" 4,719@<-25.4" 1.250-14 0 082 Tension 4,786 (Green or 4) Compression 6,208@<-23.5" 1.500-16 0.063 Tension 4,479 (Red or 6) Compression 4,480@<43.5" 1.500-14 0 082 Tension 5,830 (Green or 4) Compression 6,195@<-39.5" 1.500-13 0.094 Tension 6,683 (Yellow or 3) Compression 7,742@<-34.4" 2 Angles 0.100 Tension 5,856 1.125"x1.125" Compression 2,826@<-20.0" For SI: 1 in=25.4 mm,1 lbf=4.448 N. 1The allowable loads are axial loads only. 2For compression members with pin-to-pin lengths greater than shown,the allowable axial load must be reduced for slenderness effects(KL/r)by calculation in accordance with Section E of the AISI S100-16[Section C4 of the AISI S100-12],using a specified minimum yield strength,F,,,of 46 ksi. ESR-2504 I Most Widely Accepted and Trusted Page 6 of 7 TABLE 6-ALLOWABLE REACTIONS(Ibf)''2'3,4,5 For Top Chord Bearings Dist. SS DF-L or MSR 2100f-1.8E MSR 2400f-2.0E MSR 2850f-2.3E b Dist.a(in.) Dist.a(in.) Dist.a(in.) Version (In.) 2.50" 3.00" 3.5"+ 2.50" 3.00" 3.5"+ 2.50" 3.00" 3.5"+ 1 Truss 0.50" 2,500 2,700 2,700 2,700 2,700 2,900 3,013 3,082 3,243 2x4 0.75" 2,100 2,100 2,600 2,200 2,500 2,900 2,463 2,708 3,042 1.00" 1,800 1,800 1,900 2,000 2,000 2,000 2,362 2,362 2,386 1.25" 1,600 1,700 1,700 1,900 1,900 1,900 2,112 2,112 2,112 Dist. MSR 2100f-1.8E MSR 2400f-2.0E MSR 2850f-2.3E b Dist.a(in.) Dist.a(in.) Dist.a(in.) Version (In.) 2.50" 3.00" 3.5"+ 2.50" 3.00" 3.5"+ 2.50" 3.00" 3.5"+ 1 - Truss 0.50" 2,500 2,700 2,700 3,002 3,212 3,212 3,969 3,969 4,171 2x6 0.75" 2,100 2,100 2,600 2,827 2,827 3,143 3,086 3,186 3,186 1.00" 1,800 1,800 1,900 2,132 2,393 2,393 2,800 2,948 3,048 1.25" 1,600 1,700 1,700 1,992 1,992 1,992 2,652 2,758 2,758 Dist. LAM-CHORD For Bottom Chord Bearings b Dist.a(in.) If bearing pin is off support wood(has eccentricity),use values Version (In.) for Top Chord Bearing above. 2 3.50" 4.25" 5.0"+ Truss 3x4 0.75" 3,180 3,615 4,280 If bearing pin is on support wood(no eccentricity),use values 1.00" 3,070 3,215 3,810 from Footnote 3 below. 1.25" 2,670 3,050 3,215 1.50" 2,450 2,655 2,900 U For SI: 1 in=25.4 mm,1 lbf=4.448 N 'Distance a:The distance from the centerline of the pin in the bearing assembly to the end of the chord. 2Distance b:The distance from the centerline of the pin in the bearing assembly to the nearest edge of the bearing surface. 'The reaction,R,resulting from applied loads,must not exceed the values from above table;the bearing capacities of the supporting wood member,Feb,and chord material,R.,are determined,respectively,by using the following equations: Rs=Fc-peril X Abearing X Cb(lbf) Re=Fo-perp X Abearing(lbf) Where: B=Bearing length(in)=Distance from inside face of bearing support to end of chord. W=Width of chord(in)=3'%inches for 2x4 and 3x4 chord or 5'%inches for 2x6 chord. Fc-perp=Reference compressive design value perpendicular to grain in NDS for either supporting wood species or chord material species(psi).Fc_pem must not be increased by a duration of load factor,Co. Abearing=Bearing area(in2)=BxW. Cb=Bearing area factor in accordance with Section 3.10.4 of NDS. 4Re is not applicable when the supporting member is not a wood member. 'The maximum allowable reactions tabulated may not be increased for duration of loading(Co). ESR-2504 I Most Widely Accepted and Trusted Page 7 of 7 t Pin 13 Cc. Bearing NOTE. a Angles A red line is applied to the bottom III face of the chord at the maximumE11 — distance the bearing pin con beoff the bearing surface " to 1*i"determined by reaction). This redline must not be visible when trusses are installed. 5" OM iiik3 "or 2-16d Nails Through r 5yi" Pre—Drilled Holes. O,ii 1 j ii + 1 ii O it 1 II 1 ii ii 1 II II II 1 %" Brg. Pin OM Min. b = ? " Max. b per Note t Pin TO Tearing Bottom Bearinc VERSION 1 TRUSS L Pin 13 Ga. Bearing NOTE. a" Angles A red line is applied to the bottom face of the chord at the maximumE5114 distance the bearing pin con be • • 1 1 off the bearing surface �%" to 1 " determined by reaction). This red line must not be visible when trusses are installed. 7" 1' 2-20d Nails Through " Pre—Drilled Holes. I II II I II II ; II I 1 1 11 11 ; 11 + 1 I 0 1 II II 1 II I 1 1 1 miwa- 4'4." Brg. Pin II 11 I Min. b = %4" Max. b per Note 1 Pin ToD Bearinc Bottom Bearinc VERSION 2 TRUSS For SI: 1 in=25.4 mm. FIGURE 2—BEARING DETAILS FOR TRUSSES