05 21 00.pdf
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This is a technical specification document for steel joist framing work at Tinker Air Force Base, Oklahoma, issued in April 2019 as Section 05 21 00 of the TAFB Technical Specifications.
The specification establishes requirements for the design, fabrication, delivery, and installation of steel joists and joist girders. Steel joists and joist girders must conform to Steel Joist Institute (SJI) Load Tables and be designed to support specified loads with live-load deflection not exceeding L/240 for roof joists and L/360 for floor joists. Joist designations must follow SJI standard designations (K, KCS, LH, and DLH series), though substitutions with equal or greater structural properties are permitted. Composite steel joists are permitted if conforming to SJI Composite Joists specifications. All steel products must contain an average recycled content of at least 25 percent. Joists and joist girders must be fabricated with bridging, bearing plates, and ceiling extensions as required by SJI Load Tables. Shop painting is required using SSPC Paint 15 primer applied per SSPC PA 1, except for joists receiving sprayed-on fireproofing. All work must comply with 29 CFR 1926 and 29 CFR 1926.757 safety regulations, AWS D1.1/D1.1M welding code, and ASTM A36/A36M steel specifications. The contractor must submit shop drawings, design calculations, welder qualifications, and certification of compliance prior to construction. During erection, joists must be installed per placement plans with concurrent bridging installation, and visual inspections must verify proper spacing, bearing, bridging anchoring, alignment, and welding performed by AWS certified inspectors.
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Ti nker AFB, OK TAFB Techni cal Spr ci f i cat i ons 2019
SECTI ON 05 21 00
STEEL JOI ST FRAMI NG
PART 1 GENERAL
1. 1 REFERENCES
The publ i cat i ons l i s t ed bel ow f or m a par t of t hi s speci f i cat i on t o t he ext ent r ef er enced. The publ i cat i ons ar e r ef er r ed t o wi t hi n t he t ext by t he basi c desi gnat i on onl y.
AMERI CAN WELDI NG SOCI ETY ( AWS)
AWS D1. 1/ D1. 1M ( 2015; Er r at a 2015) St r uct ur al Wel di ng Code - St eel
ASTM I NTERNATI ONAL ( ASTM)
ASTM A36/ A36M ( 2014) St andar d Speci f i cat i on f or Car bon St r uct ur al St eel
I NTERNATI ONAL CODE COUNCI L ( I CC)
I CC I BC ( 2012) I nt er nat i onal Bui l di ng Code
SOCI ETY FOR PROTECTI VE COATI NGS ( SSPC)
SSPC PA 1 ( 2000; E 2004) Shop, Fi el d, and Mai nt enance Pai nt i ng of St eel
SSPC Pai nt 15 ( 1999; E 2004) St eel Joi st Shop Pr i mer
SSPC SP 2 ( 1982; E 2000; E 2004) Hand Tool Cl eani ng
STEEL JOI ST I NSTI TUTE ( SJI )
SJI COMPOSI TE JOI STS ( 2007; Suppl ement 1 2010) St andar d Speci f i cat i ons f or Composi t e St eel Joi st Catalog
SJI LOAD TABLES ( 2005; Er r at a 1 2006; Er r at a 2 2007;
Er r at a 3 2007) 42nd Edi t i on Cat al og of St andar d Speci f i cat i ons Load Tabl es and Wei ght Tabl es f or St eel Joi st s and Joi st Girders
SJI MANUAL ( 2009) 80 Year s of Open Web St eel Joi st Construction
U. S. NATI ONAL ARCHI VES AND RECORDS ADMI NI STRATI ON ( NARA)
29 CFR 1926 Saf et y and Heal t h Regul at i ons f or Construction
29 CFR 1926. 757 St eel Er ect i on; Open Web St eel Joi st s
Apr i l 2019 Page 1 SECTI ON 05 21 00
1. 2 SUBMITTALS
Gover nment appr oval i s r equi r ed f or submi t t al s wi t h a " G" desi gnat i on;
submi t t al s not havi ng a " G" desi gnat i on ar e f or Cont r act or Qual i t y Cont r ol appr oval . Submi t t he f ol l owi ng i n accor dance wi t h Sect i on 01 33 00
SUBMI TTAL PROCEDURES:
SD- 01 Pr econst r uct i on Submi t t al s
Wel der Qual i f i cat i on
SD- 02 Shop Dr awi ngs
St eel Joi st Fr ami ng; G
SD- 05 Desi gn Dat a
Desi gn Cal cul at i ons; G
SD- 06 Test Repor t s
Er ect i on I nspect i on Wel di ng I nspect i ons
SD- 07 Cer t i f i cat es
Cer t i f i cat i on of Compl i ance
SD- 11 Cl oseout Submi t t al s
Recycl ed Cont ent of St eel Pr oduct s; S
1. 3 QUALI TY ASSURANCE
Per f or m al l wor k i n compl i ance wi t h t he r equi r ement s set f or t h i n
29 CFR 1926.
1. 3. 1 Dr awi ng Requi r ement s
Submi t dr awi ngs of st eel j oi st f r ami ng i ncl udi ng f abr i cat i on, speci f i cat i ons f or shop pai nt i ng, and i dent i f i cat i on mar ki ngs of j oi st s and j oi st gi r der s. Show j oi st t ype and si ze, l ayout i n pl an, al l appl i cabl e l oads, def l ect i on cr i t er i a, and er ect i on det ai l s i ncl udi ng met hods of anchor i ng, f r ami ng at openi ngs, t ype, s i ze, and l ocat i on and connect i ons f or and spaci ng of br i dgi ng, r equi r ement s f or f i el d wel di ng, and det ai l s of accessor i es as appl i cabl e.
1. 3. 2 Cer t i f i cat i on of Compl i ance
Pr i or t o const r uct i on commencement , submi t cer t i f i cat i on f or wel der qual i f i cat i on, i n compl i ance wi t h AWS D1. 1/ D1. 1M, wel di ng oper at i on, and t acker , st at i ng t he t ype of wel di ng and posi t i ons qual i f i ed f or , t he code and pr ocedur e qual i f i ed under , dat e qual i f i ed, and t he f i r m and i ndi v i dual cer t i f y i ng t he qual i f i cat i on t est s. Submi t cer t i f i cat i on of compl i ance f or t he f ol l owi ng:
a. SJI MANUAL
Apr i l 2019 Page 2 SECTI ON 05 21 00
b. St eel Joi st I nst i t ut e Member Fabr i cat or
c. 29 CFR 1926
d. 29 CFR 1926. 757
e. St at ement f r om st eel j oi st manuf act ur er , t hat wor k was per f or med i n accor dance wi t h appr oved const r uct i on document s and wi t h SJI st andar d speci f i cat i ons, i n accor dance wi t h I CC I BC Sect i on 1704. 2. 5. 2.
1. 4 DELI VERY, STORAGE, AND HANDLI NG
Handl e, t r anspor t , and st or e j oi st s and j oi st gi r der s i n a manner t o pr event damage af f ect i ng t hei r st r uct ur al i nt egr i t y. Ver i f y pi ece count of al l j oi st pr oduct s upon del i ver y and i nspect al l j oi st s pr oduct s f or damage. Repor t any damage t o t he j oi st suppl i er . St or e al l i t ems of f t he gr ound i n a wel l dr ai ned l ocat i on pr ot ect ed f r om t he weat her and easi l y accessi bl e f or i nspect i on and handl i ng. St or e j oi st s wi t h t op chor d down and wi t h j oi st s i n a ver t i cal posi t i on. St or e deep j oi st s hor i zont al l y i f t hey wer e shi pped on t hei r s i des.
PART 2 PRODUCTS
2. 1 SYSTEM DESCRI PTI ON
Desi gnat e st eel j oi st s and j oi st gi r der s on t he dr awi ngs i n accor dance wi t h t he st andar d desi gnat i ons of t he St eel Joi st I nst i t ut e. Joi st s of ot her st andar d desi gnat i ons or j oi st s wi t h pr oper t i es ot her t han t hose shown may be subst i t ut ed f or t he j oi st s desi gnat ed pr ovi ded t he st r uct ur al pr oper t i es ar e equal t o or gr eat er t han t hose of t he j oi st s shown and pr ovi ded al l ot her speci f i ed r equi r ement s ar e met .
2. 2 STEEL JOI STS AND JOI ST GI RDERS
Pr ovi de st eel j oi st s and j oi st gi r der s conf or mi ng t o SJI LOAD TABLES.
Desi gn j oi st s desi gnat ed K, KCS, LH and DLH t o suppor t t he l oads gi ven i n t he appl i cabl e st andar d l oad t abl es of SJI LOAD TABLES. Submi t desi gn cal cul at i ons f or j oi st gi r der s, speci al st eel j oi st s, net upl i f t l oads, non- SJI st andar d det ai l s, and f i el d spl i ces. I ncl ude cover l et t er s i gned and seal ed by t he j oi st manuf act ur er ' s r egi st er ed desi gn pr of essi onal .
2. 2. 1 St eel Joi st Camber
Camber j oi st s as i ndi cat ed.
2. 2. 2 Speci al St eel Joi st s
Pr ovi de speci al j oi st s and connect i ons capabl e of wi t hst andi ng t he desi gn l oads i ndi cat ed wi t h a l i ve- l oad def l ect i on l ess t han L/ 240 f or r oof j oi st s and L/ 360 f or f l oor j oi st s.
2. 2. 3 St eel Joi st Subst i t ut es and Out r i gger s
Pr ovi de j oi st subst i t ut es and out r i gger s conf or mi ng t o SJI LOAD TABLES wi t h st eel angl e or channel member s.
2. 2. 4 Composi t e St eel Joi st s
Pr ovi de composi t e st eel j oi st s conf or mi ng t o SJI COMPOSI TE JOI STS.
Apr i l 2019 Page 3 SECTI ON 05 21 00
2. 2. 5 Joi st Gi r der s
Pr ovi de j oi st gi r der s capabl e of wi t hst andi ng t he desi gn l oads i ndi cat ed wi t h a l i ve- l oad def l ect i on l ess t han L/ 240 f or r oof gi r der s and L/ 360 f or f l oor gi r der s. Wher e j oi st gi r der s ar e par t of t he l at er al l oad r esi st i ng syst em, desi gn gi r der f or t he end moment s i ndi cat ed f or wi nd and sei smi c.
Camber j oi st gi r der sas i ndi cat ed.
2. 3 RECYCLED CONTENT
Pr ovi de pr oduct s wi t h an aver age r ecycl ed cont ent of st eel pr oduct s of post consumer r ecycl ed cont ent pl us one hal f of pr econsumer r ecycl ed cont ent not l ess t han 25per cent .
2. 4 ACCESSORI ES AND FI TTI NGS
2. 4. 1 Bridging
Pr ovi de br i dgi ng of mat er i al , s i ze, and t ype r equi r ed by SJI LOAD TABLES f or t ype of j oi st , chor d s i ze, spaci ng and span. Fur ni sh addi t i onal er ect i on br i dgi ng i f r equi r ed f or st abi l i t y .
2. 4. 2 Bear i ng Pl at es
Fabr i cat e st eel bear i ng pl at s f r om ASTM A36/ A36M st eel of s i ze and t hi ckness i ndi cat ed.
2. 4. 3 Cei l i ng Ext ensi ons
Fur ni sh cei l i ng ext ensi ons, ei t her bot t om- chor d el ement s or a separ at e ext ensi on uni t of enough st r engt h t o suppor t cei l i ng const r uct i on. Ext end ends t o wi t hi n 1/ 2 i nch of f i ni shed wal l sur f ace unl ess ot her wi se indicated.
2. 5 SHOP PAI NTI NG
SSPC Pai nt 15. Shop pr i me j oi st s, except as modi f i ed her ei n, i n accor dance wi t h SSPC PA 1. Cl ean j oi st s i n accor dance wi t h SSPC SP 2 bef or e pr i mi ng. Do not pr i me j oi st s t o r ecei ve spr ayed- on f i r epr oof i ng.
I f f l ash r ust i ng occur s, r e- c l ean t he sur f ace pr i or t o appl i cat i on of pr i mer . For j oi st s and j oi st gi r der s whi ch r equi r e f i ni sh pai nt i ng under Sect i on 09 90 00 PAI NTS AND COATI NGS, t he pr i mer pai nt must be compat i bl e wi t h t he f i ni sh pai nt .
PART 3 EXECUTI ON
3. 1 ERECTION
I nst al l j oi st s and j oi st gi r der s i n conf or mance wi t h SJI LOAD TABLES f or t he j oi st ser i es i ndi cat ed, and t he r equi r ement s of 29 CFR 1926 and 29 CFR 1926. 757. Handl e and set j oi st s and j oi st gi r der s avoi di ng damage t o t he member s. Pl ace t he " t ag end" of j oi st s as shown on t he j oi st s pl acement pl ans. Ensur e t hat squar e- end j oi st s ar e er ect ed r i ght s i de
up. Pl ace j oi st s on j oi st gi r der s i n accor dance wi t h t he j oi st pl acement pl an, not i ng t hat i n many i nst ances j oi st may not need t o be pl aced at a j oi st gi r der panel poi nt . Di st r i but e t empor ar y l oads so t hat j oi st capaci t y i s not exceeded. Remove damaged j oi st s and j oi st gi r der s f r om
Apr i l 2019 Page 4 SECTI ON 05 21 00 t he si t e, except when f i el d r epai r i s appr oved and such r epai r s ar e sat i sf act or i l y made i n accor dance wi t h t he manuf act ur er ' s r ecommendat i ons. Do not r epai r , f i el d modi f y, or al t er any j oi st s or j oi st gi r der wi t hout speci f i c wr i t t en i nst r uct i ons f r om t he Desi gner of Recor d and/ or j oi st manuf act ur er .
I nst al l and connect br i dgi ng concur r ent l y wi t h j oi st er ect i on, bef or e const r uct i on l oads ar e appl i ed. Do not appl y l oads t o br i dgi ng. Anchor ends of br i dgi ng l i nes at t op and bot t om chor ds i f t er mi nat i ng at wal l s or beams. Do not cut away ver t i cal l eg of br i dgi ng wher e br i dgi ng makes an el evat i on t r ansi t i on; wel d a separ at e pi ece of br i dgi ng at t he t r ansi t i on. Per f or m al l wel di ng i n accor dance wi t h AWS D1. 1/ D1. 1M.
3. 2 BEARI NG PLATES
Pr ovi de bear i ng pl at es t o accept f ul l bear i ng af t er t he suppor t i ng member s have been pl umbed and pr oper l y posi t i oned, but pr i or t o pl aci ng super i mposed l oads. The ar ea under t he pl at e must be damp- packed sol i dl y wi t h beddi ng mor t ar , except wher e nonshr i nk gr out i s i ndi cat ed on t he dr awi ngs. Pr ovi de beddi ng mor t ar and gr out as speci f i ed i n Sect i on
03 30 00 CAST- I N- PLACE CONCRETE.
3. 3 PAINTING
3. 3. 1 Touch- Up Pai nt i ng
Af t er er ect i on of j oi st s and j oi st gi r der s, t ouch- up connect i ons and ar eas of abr aded shop coat wi t h pai nt of t he same t ype used f or t he shop coat .
3. 3. 2 Fi el d Pai nt i ng
Pai nt j oi st s and j oi st gi r der s r equi r i ng a f i ni sh coat i n conf or mance wi t h t he r equi r ement s of Sect i on 09 90 00 PAI NTS AND COATI NGS.
3. 4 VI SUAL I NSPECTI ONS
Per f or m t he f ol l owi ng vi sual i nspect i ons:
a. Ver i f y t hat al l j oi st s ar e spaced pr oper l y.
b. Ver i f y t hat t her e i s suf f i c i ent j oi st bear i ng on st eel beams, concr et e, and masonr y.
c. Ver i f y al l br i dgi ng l i nes ar e pr oper l y spaced and anchor ed.
d. Ver i f y t hat damage has not occur r ed t o t he j oi st s and j oi st gi r der dur i ng er ect i on.
e. Ver i f y t he j oi st s ar e al i gned ver t i cal l y and t her e i s no l at er al sweep i n t he j oi st s.
f . Wher e concent r at ed l oads ar e pr esent on t he j oi st s ver i f y t hat t hey ar e l ocat ed i n accor dance wi t h t he j oi st s pl acement pl an.
g. Ver i f y wel di ng of br i dgi ng and j oi st seat s i n accor dance wi t h AWS D1. 1/ D1. 1M, Sect i on 6. Per f or m er ect i on i nspect i on and f i el d wel di ng i nspect i ons wi t h AWS cer t i f i ed wel di ng i nspect or s.
h. Ver i f y pr oper bol t i ng of di agonal br i dgi ng and j oi st seat s wher e t he
Apr i l 2019 Page 5 SECTI ON 05 21 00 bol t s ar e snug- t i ght .
- - End of Sect i on - -
Apr i l 2019 Page 6 SECTI ON 05 21 00
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