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Ti nker AFB, OK TAFB Techni cal Spr ci f i cat i ons 2019

SECTI ON 05 12 00

STRUCTURAL STEEL

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 ASSOCI ATI ON OF STATE HI GHWAY AND TRANSPORTATI ON OFFI CI ALS

(AASHTO)

AASHTO HB- 17 ( 2002; Er r at a 2003; Er r at a 2005, 17t h Edi t i on) St andar d Speci f i cat i ons f or Hi ghway Br i dges

AMERI CAN I NSTI TUTE OF STEEL CONSTRUCTI ON ( AI SC)

AI SC 303 ( 2010) Code of St andar d Pr act i ce f or St eel Bui l di ngs and Br i dges

AI SC 325 ( 2011) St eel Const r uct i on Manual

AI SC 326 ( 2009) Det ai l i ng f or St eel Const r uct i on

AI SC 341 ( 2010) Sei smi c Pr ovi s i ons f or St r uct ur al St eel Bui l di ngs

AI SC 360 ( 2010) Speci f i cat i on f or St r uct ur al St eel Buildings

AI SC DESI GN GUI DE 10 ( 1997) Er ect i on Br aci ng of Low- Ri se St r uct ur al St eel Bui l di ngs

AMERI CAN WELDI NG SOCI ETY ( AWS)

AWS A2. 4 ( 2012) St andar d Symbol s f or Wel di ng, Br azi ng and Nondest r uct i ve Exami nat i on

AWS D1. 1/ D1. 1M ( 2015; Er r at a 2015) St r uct ur al Wel di ng Code - St eel

AWS D1. 8/ D1. 8M ( 2009) St r uct ur al Wel di ng Code—Sei smi c Supplement

ASME I NTERNATI ONAL ( ASME)

ASME B46. 1 ( 2009) Sur f ace Text ur e, Sur f ace Roughness, Wavi ness and Lay

ASTM I NTERNATI ONAL ( ASTM)

ASTM A108 ( 2013) St andar d Speci f i cat i on f or St eel Bar , Car bon and Al l oy, Col d- Fi ni shed

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ASTM A123/ A123M ( 2013) St andar d Speci f i cat i on f or Zi nc ( Hot - Di p Gal vani zed) Coat i ngs on I r on and St eel Pr oduct s

ASTM A143/ A143M ( 2007; R 2014) St andar d Pr act i ce f or Saf eguar di ng Agai nst Embr i t t l ement of Hot - Di p Gal vani zed St r uct ur al St eel Pr oduct s and Pr ocedur e f or Det ect i ng Embrittlement

ASTM A193/ A193M ( 2015a) St andar d Speci f i cat i on f or Al l oy- St eel and St ai nl ess St eel Bol t i ng Mat er i al s f or Hi gh- Temper at ur e Ser vi ce and Ot her Speci al Pur pose Appl i cat i ons

ASTM A276/ A276M ( 2016) St andar d Speci f i cat i on f or St ai nl ess St eel Bar s and Shapes

ASTM A29/ A29M ( 2013) St andar d Speci f i cat i on f or Gener al Requi r ement s f or St eel Bar s, Car bon and Al l oy, Hot - Wr ought

ASTM A307 ( 2014) St andar d Speci f i cat i on f or Car bon St eel Bol t s and St uds, 60 000 PSI Tensi l e Strength

ASTM A325 ( 2014) St andar d Speci f i cat i on f or St r uct ur al Bol t s, St eel , Heat Tr eat ed, 120/ 105 ksi Mi ni mum Tensi l e St r engt h

ASTM A36/ A36M ( 2014) St andar d Speci f i cat i on f or Car bon St r uct ur al St eel

ASTM A490 ( 2014a) St andar d Speci f i cat i on f or St r uct ur al Bol t s, Al l oy St eel , Heat Tr eat ed, 150 ksi Mi ni mum Tensi l e St r engt h

ASTM A500/ A500M ( 2013) St andar d Speci f i cat i on f or Col d- For med Wel ded and Seaml ess Car bon St eel St r uct ur al Tubi ng i n Rounds and Shapes

ASTM A53/ A53M ( 2012) St andar d Speci f i cat i on f or Pi pe, St eel , Bl ack and Hot - Di pped, Zi nc- Coat ed, Wel ded and Seaml ess

ASTM A563 ( 2015) St andar d Speci f i cat i on f or Car bon and Al l oy St eel Nut s

ASTM A563M ( 2007; R 2013) St andar d Speci f i cat i on f or Car bon and Al l oy St eel Nut s ( Met r i c)

ASTM A6/ A6M ( 2014) St andar d Speci f i cat i on f or Gener al Requi r ement s f or Rol l ed St r uct ur al St eel Bar s, Pl at es, Shapes, and Sheet Pi l i ng

ASTM A668/ A668M ( 2015) St andar d Speci f i cat i on f or St eel For gi ngs, Car bon and Al l oy, f or Gener al

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I ndust r i al Use

ASTM A780/ A780M ( 2009; R 2015) St andar d Pr act i ce f or Repai r of Damaged and Uncoat ed Ar eas of Hot - Di p Gal vani zed Coat i ngs

ASTM A992/ A992M ( 2011) St andar d Speci f i cat i on f or St r uct ur al St eel Shapes

ASTM B695 ( 2004; R 2009) St andar d Speci f i cat i on f or Coat i ngs of Zi nc Mechani cal l y Deposi t ed on I r on and St eel

ASTM C1107/ C1107M ( 2014a) St andar d Speci f i cat i on f or Packaged Dr y, Hydr aul i c- Cement Gr out (Nonshrink)

ASTM C827/ C827M ( 2010) Change i n Hei ght at Ear l y Ages of Cyl i ndr i cal Speci mens f r om Cement i t i ous Mixtures

ASTM F1554 ( 2015) St andar d Speci f i cat i on f or Anchor Bol t s, St eel , 36, 55, and 105- ksi Yi el d Strength

ASTM F1852 ( 2014) St andar d Speci f i cat i on f or " Twi st Of f " Type Tensi on Cont r ol St r uct ur al Bol t / Nut / Washer Assembl i es, St eel , Heat Tr eat ed, 120/ 105 ksi Mi ni mum Tensi l e Strength

ASTM F2329 ( 2013) Zi nc Coat i ng, Hot - Di p, Requi r ement s f or Appl i cat i on t o Car bon and Al l oy St eel Bol t s, Scr ews, Washer s, Nut s, and Speci al Thr eaded Fast ener s

ASTM F436 ( 2011) Har dened St eel Washer s

ASTM F844 ( 2007a; R 2013) Washer s, St eel , Pl ai n ( Fl at ) , Unhar dened f or Gener al Use

ASTM F959 ( 2013) Compr essi bl e- Washer - Type Di r ect Tensi on I ndi cat or s f or Use wi t h St r uct ur al Fasteners

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 20 ( 2002; E 2004) Zi nc- Ri ch Pr i mer s ( Type I , I nor gani c, and Type I I , Or gani c)

SSPC Pai nt 29 ( 2002; E 2004) Zi nc Dust Sacr i f i c i al Pr i mer , Per f or mance- Based

SSPC SP 3 ( 1982; E 2004) Power Tool Cl eani ng

SSPC SP 6/ NACE No. 3 ( 2007) Commer ci al Bl ast Cl eani ng

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U. S. DEPARTMENT OF DEFENSE ( DOD)

UFC 3- 301- 01 ( 2013; wi t h Change 1) St r uct ur al Engineering

UFC 3- 310- 04 ( 2013) Sei smi c Desi gn f or Bui l di ngs

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

Er ect i on Dr awi ngs; G

SD- 02 Shop Dr awi ngs

Fabr i cat i on Dr awi ngs I ncl udi ng Descr i pt i on of Connect i ons; G

SD- 03 Pr oduct Dat a

Shop Pr i mer

Wel di ng El ect r odes and Rods

Di r ect Tensi on I ndi cat or Washer s

Non- Shr i nk Gr out

Tensi on Cont r ol Bol t s

SD- 06 Test Repor t s

Cl ass B Coat i ng

Bol t s, Nut s, and Washer s

Wel d I nspect i on Repor t s

Di r ect Tensi on I ndi cat or Washer I nspect i on Repor t s

Bol t Test i ng Repor t s

Embr i t t l ement Test Repor t s

SD- 07 Cer t i f i cat es

Steel

Bol t s, Nut s, and Washer s

Galvanizing

Pi ns and Rol l er s

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AI SC Fabr i cat i on Pl ant Qual i t y Cer t i f i cat i on

AI SC Er ect or Qual i t y Cer t i f i cat i on

Wel di ng Pr ocedur es and Qual i f i cat i ons

Wel di ng El ect r odes and Rods

1. 3 AI SC QUALI TY CERTI FI CATI ON

Wor k must be f abr i cat ed i n an AI SC Cer t i f i ed Fabr i cat i on Pl ant , Cat egor y St d. Submi t AI SC f abr i cat i on pl ant qual i t y cer t i f i cat i on.

Wor k must be er ect ed by an AI SC Cer t i f i ed Er ect or , Cat egor y CSE. Submi t AI SC er ect or qual i t y cer t i f i cat i on.

1. 4 SEI SMI C PROVI SI ONS

The st r uct ur al st eel syst em must be pr ovi ded i n accor dance wi t h AI SC 341, Chapt er J as amended by UFC 3- 310- 04.

1. 5 QUALI TY ASSURANCE

1. 5. 1 Pr econst r uct i on Submi t t al s

1. 5. 1. 1 Er ect i on Dr awi ngs

Submi t f or r ecor d pur poses. I ndi cat e t he sequence of er ect i on, t empor ar y shor i ng and br aci ng. The er ect i on dr awi ngs must conf or m t o AI SC 303.

Er ect i on dr awi ngs must be r evi ewed, st amped and seal ed by a r egi st er ed pr of essi onal engi neer .

1. 5. 2 Fabr i cat i on Dr awi ng Requi r ement s

Submi t f abr i cat i on dr awi ngs f or appr oval pr i or t o f abr i cat i on. Pr epar e i n accor dance wi t h AI SC 326 and AI SC 325. Fabr i cat i on dr awi ngs must not be r epr oduct i ons of cont r act dr awi ngs. I ncl ude compl et e i nf or mat i on f or t he f abr i cat i on and er ect i on of t he st r uct ur e' s component s, i ncl udi ng t he l ocat i on, t ype, and si ze of bol t s, wel ds, member s i zes and l engt hs, connect i on det ai l s, bl ocks, copes, and cut s. Use AWS A2. 4 st andar d wel di ng symbol s. Shor i ng and t empor ar y br aci ng must be desi gned and seal ed by a r egi st er ed pr of essi onal engi neer and submi t t ed f or r ecor d pur poses, wi t h cal cul at i ons, as par t of t he dr awi ngs. Any devi at i ons f r om t he det ai l s shown on t he cont r act dr awi ngs must be cl ear l y hi ghl i ght ed on t he f abr i cat i on dr awi ngs. Expl ai n t he r easons f or any devi at i ons f r om t he cont r act dr awi ngs.

1. 5. 3 Certifications

1. 5. 3. 1 Wel di ng Pr ocedur es and Qual i f i cat i ons

Pr i or t o wel di ng, submi t cer t i f i cat i on f or each wel der 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. I f t he qual i f i cat i on dat e of t he wel di ng oper at or i s mor e t han one- year ol d, t he wel di ng oper at or ' s qual i f i cat i on cer t i f i cat e must be accompani ed by a cur r ent cer t i f i cat e by t he wel der at t est i ng t o t he f act t hat he has been engaged i n wel di ng si nce t he dat e of cer t i f i cat i on, wi t h no br eak i n wel di ng ser vi ce gr eat er t han 6 mont hs.

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Conf or m t o al l r equi r ement s speci f i ed i n AWS D1. 1/ D1. 1M and AWS D1. 8/ D1. 8M.

PART 2 PRODUCTS

2. 1 SYSTEM DESCRI PTI ON

Pr ovi de t he st r uct ur al st eel syst em, i ncl udi ng shop pr i mer or gal vani z i ng, compl et e and r eady f or use. St r uct ur al st eel syst ems i ncl udi ng desi gn, mat er i al s, i nst al l at i on, wor kmanshi p, f abr i cat i on, assembl y, er ect i on, i nspect i on, qual i t y cont r ol , and t est i ng must be pr ovi ded i n accor dance with AI SC 360, AI SC 341, UFC 3- 301- 01 and UFC 3- 310- 04 except as modi f i ed i n t hi s cont r act .

2. 2 STEEL

2. 2. 1 St r uct ur al St eel

Wi de f l ange and WT shapes, ASTM A992/ A992M. Angl es, Channel s and Pl at es, ASTM A36/ A36M.

2. 2. 2 St r uct ur al St eel Tubi ng

ASTM A500/ A500M, Gr ade C.

2. 2. 3 St eel Pi pe

ASTM A53/ A53M, Type E or S, Gr ade B, wei ght c l ass STD ( St andar d) .

2. 3 BOLTS, NUTS, AND WASHERS

Submi t t he cer t i f i ed manuf act ur er ' s mi l l r epor t s whi ch c l ear l y show t he appl i cabl e ASTM mechani cal and chemi cal r equi r ement s t oget her wi t h t he act ual t est r esul t s f or t he suppl i ed f ast ener s.

2. 3. 1 Common Gr ade Bol t s

2. 3. 1. 1 Bolts

ASTM A307, Gr ade A. The bol t heads and t he nut s of t he suppl i ed f ast ener s must be mar ked wi t h t he manuf act ur er ' s i dent i f i cat i on mar k, t he st r engt h gr ade and t ype speci f i ed by ASTM speci f i cat i ons.

2. 3. 1. 2 Nuts

ASTM A563M, Gr ade A, heavy hex st y l e.

2. 3. 1. 3 Sel f - Locki ng Nut s

Pr ovi de nut s wi t h a l ocki ng pi n set i n t he nut . The l ocki ng pi n must s l i de al ong t he bol t t hr eads, and by r ever si ng t he di r ect i on of t he l ocki ng pi n, t he nut must be r emoved wi t hout damagi ng t he nut or bol t .

Pr ovi de st ai nl ess st eel l ocki ng pi ns.

2. 3. 1. 4 Washers

ASTM F844.

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2. 3. 2 Hi gh- St r engt h Bol t s

2. 3. 2. 1 Bolts

ASTM A325, Type 1 ASTM A490, Type 1 or 2.

2. 3. 2. 2 Nuts

ASTM A563, Gr ade and St yl e as speci f i ed i n t he appl i cabl e ASTM bol t standard.

2. 3. 2. 3 Di r ect Tensi on I ndi cat or Washer s

ASTM F959.

2. 3. 2. 4 Washers

ASTM F436, pl ai n car bon st eel .

2. 3. 3 Tensi on Cont r ol Bol t s

ASTM F1852, Type 1, heavy- hex head assembl i es consi st i ng of st eel st r uct ur al bol t s wi t h spl i ned ends, heavy- hex car bon st eel nut s, and har dened car bon st eel washer s. Assembl y f i ni sh must be pl ai n.

2. 3. 4 Foundat i on Anchor age

2. 3. 4. 1 Anchor Rods

ASTM F1554 Gr 36 , Cl ass 1A .

2. 3. 4. 2 Anchor Nut s

ASTM A563, Gr ade A, hex st y l e.

2. 3. 4. 3 Anchor Washer s

ASTM F844.

2. 3. 4. 4 Anchor Pl at e Washer s

ASTM A36/ A36M

2. 4 STRUCTURAL STEEL ACCESSORI ES

2. 4. 1 Wel di ng El ect r odes and Rods

AWS D1. 1/ D1. 1M and AWS D1. 8/ D1. 8M.

2. 4. 2 Non- Shr i nk Gr out

ASTM C1107/ C1107M, wi t h no ASTM C827/ C827M shr i nkage.

2. 4. 3 Wel ded Shear St ud Connect or s

ASTM A29/ A29M, Type B. AWS D1. 1/ D1. 1M.

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2. 4. 4 Pi ns and Rol l er s

ASTM A668/ A668M, Cl ass C, D, F, or G; ASTM A108, Gr ades 1016 t o 1030.

Pr ovi de as speci f i ed i n AASHTO HB- 17, Di v i s i on I I , Sect i ons 10. 26 and

10. 27, except pr ovi de pi ns i n l engt hs t o ext end a mi ni mum of 0. 25 i nch beyond t he out si de f aces of t he connect ed par t s.

2. 5 GALVANIZING

ASTM F2329 f or t hr eaded par t s or ASTM A123/ A123M f or st r uct ur al st eel member s, as appl i cabl e, unl ess speci f i ed ot her wi se gal vani ze af t er f abr i cat i on wher e pr act i cabl e.

2. 6 FABRICATION

Fabr i cat i on must be i n accor dance wi t h t he appl i cabl e pr ovi s i ons of AI SC 325. Fabr i cat i on and assembl y must be done i n t he shop t o t he gr eat est ext ent possi bl e. Punch, subpunch and r eam, or dr i l l bol t and pi n hol es per pendi cul ar t o t he sur f ace of t he member .

Compr essi on j oi nt s dependi ng on cont act bear i ng must have a sur f ace r oughness not i n excess of 500 mi cr o i nch as det er mi ned by ASME B46. 1, and ends must be squar e wi t hi n t he t ol er ances f or mi l l ed ends speci f i ed i n

ASTM A6/ A6M.

Shop spl i ces of member s bet ween f i el d spl i ces wi l l be per mi t t ed onl y wher e i ndi cat ed on t he Cont r act Dr awi ngs. Spl i ces not i ndi cat ed r equi r e t he appr oval of t he Cont r act i ng Of f i cer .

Do not spl i ce t r uss t op and bot t om chor ds except as appr oved by t he Cont r act i ng Of f i cer . Chor d spl i ces must occur at panel j oi nt s at appr oxi mat el y t he t hi r d poi nt of t he span. The cent er of gr avi t y l i nes of t r uss member s must i nt er sect at panel poi nt s unl ess ot her wi se appr oved by t he Cont r act i ng Of f i cer . When t he cent er of gr avi t y l i nes do not i nt er sect at a panel poi nt , pr ovi s i ons must be made f or t he st r esses due t o eccent r i c i t y. Camber of t r usses must be 1/ 8 i nch i n 10 f eet unl ess ot her wi se i ndi cat ed.

2. 6. 1 Markings

Pr i or t o er ect i on, member s must be i dent i f i ed by a pai nt ed er ect i on mar k.

Connect i ng par t s assembl ed i n t he shop f or r eami ng hol es i n f i el d connect i ons must be mat ch mar ked wi t h scr at ch and not ch mar ks. Do not l ocat e er ect i on mar ki ngs on ar eas t o be wel ded. Do not l ocat e mat ch mar ki ngs i n ar eas t hat wi l l decr ease member st r engt h or cause st r ess concent r at i ons. Af f i x embossed t ags t o hot - di pped gal vani zed member s.

2. 6. 2 Shop Pr i mer

SSPC Pai nt 20 or SSPC Pai nt 29, ( z i nc r i ch pr i mer ) . Shop pr i me st r uct ur al st eel , except as modi f i ed her ei n, i n accor dance wi t h SSPC PA 1. Do not pr i me st eel sur f aces embedded i n concr et e, gal vani zed sur f aces, sur f aces t o r ecei ve spr ayed- on f i r epr oof i ng, sur f aces t o r ecei ve epoxy coat i ngs, sur f aces desi gned as par t of a composi t e st eel concr et e sect i on, or sur f aces wi t hi n 0. 5 i nch of t he t oe of t he wel ds pr i or t o wel di ng ( except sur f aces on whi ch met al decki ng i s t o be wel ded) . 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 . Appl y pr i mer t o a mi ni mum dr y f i l m t hi ckness of 2. 0 mi l .

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Sl i p cr i t i cal sur f aces must be pr i med wi t h a Cl ass B coat i ng i n accor dance with AI SC 325. Submi t t est r epor t f or Cl ass B coat i ng.

Pr i or t o assembl y, pr i me sur f aces whi ch wi l l be conceal ed or i naccessi bl e af t er assembl y. Do not appl y pr i mer i n f oggy or r ai ny weat her ; when t he ambi ent t emper at ur e i s bel ow 45 degr ees F or over 95 degr ees F; or when t he pr i mer may be exposed t o t emper at ur es bel ow 40 degr ees F wi t hi n 48 hour s af t er appl i cat i on, unl ess appr oved ot her wi se by t he Cont r act i ng Of f i cer . Repai r damaged pr i med sur f aces wi t h an addi t i onal coat of pr i mer .

2. 6. 2. 1 Cleaning

SSPC SP 6/ NACE No. 3, except st eel exposed i n spaces above cei l i ngs, at t i c spaces, f ur r ed spaces, and chases t hat wi l l be hi dden t o v i ew i n f i ni shed const r uct i on may be cl eaned t o SSPC SP 3 when r ecommended by t he shop pr i mer manuf act ur er . Mai nt ai n st eel sur f aces f r ee f r om r ust , di r t , oi l , gr ease, and ot her cont ami nant s t hr ough f i nal assembl y.

2. 6. 3 Fi r epr oof i ng and Epoxy Coat ed Sur f aces

Sur f aces t o r ecei ve spr ayed- on f i r epr oof i ng or epoxy coat i ngs must be cl eaned and pr epar ed i n accor dance wi t h t he manuf act ur er ' s r ecommendat i ons, and as speci f i ed i n Sect i on 07 81 00 SPRAY- APPLI ED

FIREPROOFING.

2. 6. 4 Sur f ace Fi ni shes

ASME B46. 1 maxi mum sur f ace r oughness of 125 f or pi n, pi nhol es, and sl i di ng bear i ngs, unl ess i ndi cat ed ot her wi se.

2. 7 DRAI NAGE HOLES

Adequat e dr ai nage hol es must be dr i l l ed t o el i mi nat e wat er t r aps. Hol e di amet er must be 1/ 2 i nch and l ocat i on must be i ndi cat ed on t he det ai l dr awi ngs. Hol e s i ze and l ocat i on must not af f ect t he st r uct ur al i nt egr i t y.

PART 3 EXECUTI ON

3. 1 ERECTION

a. Er ect i on of st r uct ur al st eel , except as i ndi cat ed i n i t em b. bel ow, must be i n accor dance wi t h t he appl i cabl e pr ovi s i ons of AI SC 325.

b. For l ow- r i se st r uct ur al st eel bui l di ngs ( 60 f eet t al l or l ess and a maxi mum of 2 st or i es) , t he st r uct ur e must be er ect ed i n accor dance with AI SC DESI GN GUI DE 10.

Af t er f i nal posi t i oni ng of st eel member s, pr ovi de f ul l bear i ng under base pl at es and bear i ng pl at es usi ng nonshr i nk gr out . Pl ace nonshr i nk gr out i n accor dance wi t h t he manuf act ur er ' s i nst r uct i ons.

3. 1. 1 STORAGE

Mat er i al must be st or ed out of cont act wi t h t he gr ound i n such manner and l ocat i on as wi l l mi ni mi ze det er i or at i on.

3. 2 CONNECTIONS

Except as modi f i ed i n t hi s sect i on, connect i ons not det ai l ed must be

Apr i l 2019 Page 9 SECTI ON 05 12 00 desi gned i n accor dance wi t h AI SC 360. Bui l d connect i ons i nt o exi st i ng wor k. Do not t i ght en anchor bol t s set i n concr et e wi t h i mpact t or que wr enches. Hol es must not be cut or enl ar ged by bur ni ng. Bol t s, nut s, and washer s must be cl ean of di r t and r ust , and l ubr i cat ed i mmedi at el y pr i or t o i nst al l at i on.

3. 2. 1 Common Gr ade Bol t s

ASTM A307 bol t s must be t i ght ened t o a " snug t i ght " f i t . " Snug t i ght " i s t he t i ght ness t hat exi st s when pl i es i n a j oi nt ar e i n f i r m cont act . I f f i r m cont act of j oi nt pl i es cannot be obt ai ned wi t h a f ew i mpact s of an i mpact wr ench, or t he f ul l ef f or t of a man usi ng a spud wr ench, cont act t he Cont r act i ng Of f i cer f or f ur t her i nst r uct i ons.

3. 2. 2 Hi gh- St r engt h Bol t s

Pr ovi de di r ect t ensi on i ndi cat or washer s i n al l ASTM A325 and ASTM A490 bol t ed connect i ons. Bol t s must be i nst al l ed i n connect i on hol es and i ni t i al l y br ought t o a snug t i ght f i t . Af t er t he i ni t i al t i ght eni ng pr ocedur e, bol t s must t hen be f ul l y t ensi oned, pr ogr essi ng f r om t he most r i gi d par t of a connect i on t o t he f r ee edges.

3. 2. 2. 1 I nst al l at i on of Di r ect Tensi on I ndi cat or Washer s ( DTI W)

Wher e possi bl e, t he DTI W must be i nst al l ed under t he bol t head and t he nut must be t i ght ened. I f t he DTI W i s i nst al l ed adj acent t o t he t ur ned el ement , pr ovi de a f l at washer bet ween t he DTI W and nut when t he nut i s t ur ned f or t i ght eni ng, and bet ween t he DTI W and bol t head when t he bol t head i s t ur ned f or t i ght eni ng. I n addi t i on t o t he LI W, pr ovi de f l at washer s under bot h t he bol t head and nut when ASTM A490 bol t s ar e used.

3. 2. 3 Tensi on Cont r ol Bol t s

Bol t s must be i nst al l ed i n connect i on hol es and i ni t i al l y br ought t o a snug t i ght f i t . Af t er t he i ni t i al t i ght eni ng pr ocedur e, bol t s must t hen be f ul l y t ensi oned, pr ogr essi ng f r om t he most r i gi d par t of a connect i on t o t he f r ee edges.

3. 3 GAS CUTTI NG

Use of gas- cut t i ng t or ch i n t he f i el d f or cor r ect i ng f abr i cat i on er r or s wi l l not be per mi t t ed on any maj or member i n t he st r uct ur al f r ami ng. Use of a gas cut t i ng t or ch wi l l be per mi t t ed on mi nor member s not under st r ess onl y af t er appr oval has been obt ai ned f r om t he Cont r act i ng Of f i cer .

3. 4 WELDING

Wel di ng must be i n accor dance wi t h AWS D1. 1/ D1. 1M. Gr i nd exposed wel ds smoot h as i ndi cat ed. Pr ovi de AWS D1. 1/ D1. 1M qual i f i ed wel der s, wel di ng oper at or s, and t acker s.

Devel op and submi t t he Wel di ng Pr ocedur e Speci f i cat i ons ( WPS) f or al l wel di ng, i ncl udi ng wel di ng done usi ng pr equal i f i ed pr ocedur es.

Pr equal i f i ed pr ocedur es may be submi t t ed f or i nf or mat i on onl y; however , pr ocedur es t hat ar e not pr equal i f i ed must be submi t t ed f or appr oval .

3. 4. 1 Removal of Tempor ar y Wel ds, Run- Of f Pl at es, and Backi ng St r i ps

Remove onl y f r om f i ni shed ar eas. Remove backi ng st r i ps f r om bot t om f l ange

Apr i l 2019 Page 10 SECTI ON 05 12 00 of moment connect i ons, backgouge t he r oot pass t o sound wel d met al and r ei nf or ce wi t h a 5/ 16 i nch f i l l et wel d mi ni mum.

3. 5 SHOP PRI MER REPAI R

Repai r shop pr i mer i n accor dance wi t h t he pai nt manuf act ur er ' s r ecommendat i on f or sur f aces damaged by handl i ng, t r anspor t i ng, cut t i ng, wel di ng, or bol t i ng.

3. 5. 1 Fi el d Pr i mi ng

St eel exposed t o t he weat her , or l ocat ed i n bui l di ng ar eas wi t hout HVAC f or cont r ol of r el at i ve humi di t y must be f i el d pr i med. Af t er er ect i on, t he f i el d bol t heads and nut s, f i el d wel ds, and any abr asi ons i n t he shop coat must be cl eaned and pr i med wi t h pai nt of t he same qual i t y as t hat used f or t he shop coat .

3. 6 GALVANI ZI NG REPAI R

Repai r damage t o gal vani zed coat i ngs usi ng ASTM A780/ A780M zi nc r i ch pai nt f or gal vani z i ng damaged by handl i ng, t r anspor t i ng, cut t i ng, wel di ng, or bol t i ng. Do not heat sur f aces t o whi ch r epai r pai nt has been appl i ed.

3. 7 FI ELD QUALI TY CONTROL

Per f or m f i el d t est s, and pr ovi de l abor , equi pment , and i nci dent al s r equi r ed f or t est i ng. The Cont r act i ng Of f i cer must be not i f i ed i n wr i t i ng of def ect i ve wel ds, bol t s, nut s, and washer s wi t hi n 7 wor ki ng days of t he dat e of t he i nspect i on.

3. 7. 1 Welds

3. 7. 1. 1 Vi sual I nspect i on

AWS D1. 1/ D1. 1M. Fur ni sh t he ser vi ces of AWS- cer t i f i ed wel di ng i nspect or s f or f abr i cat i on and er ect i on i nspect i on and t est i ng and ver i f i cat i on inspections.

I nspect pr oper pr epar at i on, s i ze, gagi ng l ocat i on, and accept abi l i t y of wel ds; i dent i f i cat i on mar ki ng; oper at i on and cur r ent char act er i st i cs of wel di ng set s i n use.

3. 7. 1. 2 Nondest r uct i ve Test i ng

Nondest r uct i ve t est i ng must be i n accor dance wi t h AWS D1. 1/ D1. 1M. Test l ocat i ons must be as i ndi cat ed. I f mor e t han 20 per cent of wel ds made by a wel der cont ai n def ect s i dent i f i ed by t est i ng, t hen al l wel ds made by t hat wel der must be t est ed by ul t r asoni c t est i ng, as appr oved by t he Cont r act i ng Of f i cer . When al l wel ds made by an i ndi v i dual wel der ar e r equi r ed t o be t est ed, magnet i c par t i c l e t est i ng must be used onl y i n ar eas i naccessi bl e t o ul t r asoni c t est i ng. Ret est def ect i ve ar eas af t er r epai r . Submi t wel d i nspect i on r epor t s.

Test i ng f r equency: Pr ovi de t he f ol l owi ng t ypes and number of t est s:

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Test Type Number of Test s

Ultrasonic

Magnet i c Par t i c l e 4

Dye Penet r ant

3. 7. 2 Di r ect Tensi on I ndi cat or Washer s

3. 7. 2. 1 Di r ect Tensi on I ndi cat or Washer Compr essi on

Di r ect t ensi on i ndi cat or washer s must be t est ed i n pl ace t o ver i f y t hat t hey have been compr essed suf f i c i ent l y t o pr ovi de t he 0. 015 i nch gap when t he di r ect t ensi on i ndi cat or washer i s pl aced under t he bol t head and t he nut i s t i ght ened, and t o pr ovi de t he 0. 005 i nch gap when t he di r ect t ensi on i ndi cat or washer i s pl aced under t he t ur ned el ement , as r equi r ed by ASTM F959. Submi t di r ect t ensi on i ndi cat or washer i nspect i on r epor t s.

3. 7. 3 Hi gh- St r engt h Bol t s

3. 7. 3. 1 Test i ng Bol t , Nut , and Washer Assembl i es

Test a mi ni mum of 3 bol t , nut , and washer assembl i es f r om each mi l l cer t i f i cat e bat ch i n a t ensi on measur i ng devi ce at t he j ob s i t e pr i or t o t he begi nni ng of bol t i ng st ar t - up. Demonst r at e t hat t he bol t s and nut s, when used t oget her , can devel op t ensi on not l ess t han t he pr ovi s i ons speci f i ed i n AI SC 360, dependi ng on bol t s i ze and gr ade. The bol t t ensi on must be devel oped by t i ght eni ng t he nut . A r epr esent at i ve of t he manuf act ur er or suppl i er must be pr esent t o ensur e t hat t he f ast ener s ar e pr oper l y used, and t o demonst r at e t hat t he f ast ener assembl i es suppl i ed sat i sf y t he speci f i ed r equi r ement s. Submi t bol t t est i ng r epor t s.

3. 7. 3. 2 Inspection

I nspect i on pr ocedur es must be i n accor dance wi t h AI SC 360. Conf i r m and r epor t t o t he Cont r act i ng Of f i cer t hat t he mat er i al s meet t he pr oj ect speci f i cat i on and t hat t hey ar e pr oper l y st or ed. Conf i r m t hat t he f ayi ng sur f aces have been pr oper l y pr epar ed bef or e t he connect i ons ar e assembl ed. Obser ve t he speci f i ed j ob s i t e t est i ng and cal i br at i on, and conf i r m t hat t he pr ocedur e t o be used pr ovi des t he r equi r ed t ensi on.

Moni t or t he wor k t o ensur e t he t est i ng pr ocedur es ar e r out i nel y f ol l owed on j oi nt s t hat ar e speci f i ed t o be f ul l y t ensi oned.

I nspect cal i br at i on of t or que wr enches f or hi gh- st r engt h bol t s.

3. 7. 3. 3 Testing

The Gover nment has t he opt i on t o per f or m nondest r uct i ve t est s on 5 per cent of t he i nst al l ed bol t s t o ver i f y compl i ance wi t h pr e- l oad bol t t ensi on r equi r ement s. Pr ovi de t he r equi r ed access f or t he Gover nment t o per f or m t he t est s. The nondest r uct i ve t est i ng wi l l be done i n- pl ace usi ng an ul t r asoni c measur i ng devi ce or any ot her devi ce capabl e of det er mi ni ng i n- pl ace pr e- l oad bol t t ensi on. The t est l ocat i ons must be sel ect ed by t he Cont r act i ng Of f i cer . I f mor e t han 10 per cent of t he bol t s t est ed cont ai n def ect s i dent i f i ed by t est i ng, t hen al l bol t s used f r om t he bat ch f r om whi ch t he t est ed bol t s wer e t aken, must be t est ed at t he Cont r act or ' s

Apr i l 2019 Page 12 SECTI ON 05 12 00 expense. Ret est new bol t s af t er i nst al l at i on at t he Cont r act or ' s expense.

3. 7. 4 Test i ng f or Embr i t t l ement

ASTM A143/ A143M f or st eel pr oduct s hot - di p gal vani zed af t er f abr i cat i on.

Submi t embr i t t l ement t est r epor t s.

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