CONCRETE LINTEL · 2019-07-09 · on lintel: 6" block weight = 32 psf (Hollow) 12" block weight =...

12
CONCRETE LINTEL SPECIFICATION GUIDE Manufacturing quality lintels since 1956.

Transcript of CONCRETE LINTEL · 2019-07-09 · on lintel: 6" block weight = 32 psf (Hollow) 12" block weight =...

Page 1: CONCRETE LINTEL · 2019-07-09 · on lintel: 6" block weight = 32 psf (Hollow) 12" block weight = 50 psf (Hollow) Equivalent load of apex area = .33 WL Effective span "L" of lintel

CONCRETE LINTEL SPECIFICATION GUIDE

Manufacturing quality lintels since 1956.

Page 2: CONCRETE LINTEL · 2019-07-09 · on lintel: 6" block weight = 32 psf (Hollow) 12" block weight = 50 psf (Hollow) Equivalent load of apex area = .33 WL Effective span "L" of lintel

#3#3

#4#4

#5

#3

#4

#3

#3

SIZING OVERVIEWSOLID LINTEL

Rebar is grade 60 steel ASTM 615All units meet 4-inch minimum bearing lengthConcrete compressive strength is 3,000 PSIMinimum fire rating is 1 1/2 hours

Rebar placement:Clearance from bottom: 1 1/2"

Clearance from top: 1 1/2"

Special rebar schedules available upon request.

Lintel Length30" to 68"

Lintel Length72" to 88"

Lintel Length90" to 96"

Lintel Length102" to 144"

Lintel Length30" to 64"

Lintel Length72” to 88”

Lintel Length90” to 96”

Lintel Length104” to 144”

Lintel Length40" to 64"

Lintel Length72" to 88"

Lintel Length96"

Lintel Length108" to 144"

6" x 8" SOLID LINTELS

4" x 8" SOLID LINTELS

8" x 8" SOLID LINTELS

#3

#3

#3#3

#3#3 #3#3

#3

#5

#3

#4

#3

#3

#3

#3#3

#5#5

- 2 -

Page 3: CONCRETE LINTEL · 2019-07-09 · on lintel: 6" block weight = 32 psf (Hollow) 12" block weight = 50 psf (Hollow) Equivalent load of apex area = .33 WL Effective span "L" of lintel

Rebar is grade 60 steel ASTM 615All units meet 4-inch minimum bearing length5,000 PSI concrete mix designMinimum fire rating is 1 1/2 hours

Rebar placement:Clearance from bottom: 1 1/2"

Clearance from top: 1 1/2"

6" x 8" U-LINTELS 8" x 8" U-LINTELS

10" x 8" U-LINTELS 12" x 8" U-LINTELS

• U-lintels are available in lengths from 36" to 144".

• All four widths are stocked in these lengths: 48", 56", 72", 88", 96", 144"

• All other lengths available by special request.

• #3 and #5 rebar placed as shown.

#3 rebar

#5 rebar

#3 rebar

#5 rebar

#3 rebar

#5 rebar

#3 rebar

#5 rebar

Notch to allow for seismic reinforcing.

5 1/2” long horizontal notch for seismic reinforcing.

SIZING OVERVIEWU-LINTEL

5 1/2” long horizontal notch for seismic reinforcing.

5 1/2” long horizontal notch for seismic reinforcing.

5 1/2” long horizontal notch for seismic reinforcing.

- 3 -

Page 4: CONCRETE LINTEL · 2019-07-09 · on lintel: 6" block weight = 32 psf (Hollow) 12" block weight = 50 psf (Hollow) Equivalent load of apex area = .33 WL Effective span "L" of lintel

Load TablesSOLID LINTELS

U-LINTELS6" x 8"8" x 8"

10" x 8"12" x 8"

4" x 8"6" x 8"8" x 8"

- 4 -

Page 5: CONCRETE LINTEL · 2019-07-09 · on lintel: 6" block weight = 32 psf (Hollow) 12" block weight = 50 psf (Hollow) Equivalent load of apex area = .33 WL Effective span "L" of lintel

900

North

Har

tley

Stre

et, Y

ork,

PA

1740

4 |

717.

792.

4700

| w

ww.

york

build

ing.

com

SOLI

D L

INTE

LS -

4" x

8"

Top

Botto

m

2. N

omin

al lin

tel le

ngth

(inch

es)

3236

4042

4448

5456

6064

6672

7880

8488

9096

102

104

108

112

114

120

128

132

136

144

3. M

ason

ry o

peni

ng L

1 (in

ches

)16

2024

2628

3238

4044

4850

5862

6468

7274

8086

8892

9698

104

112

116

120

128

4. E

ffect

ive s

pan

L 2 (in

ches

)24

2832

3436

4046

4852

5658

6470

7276

8082

8894

9610

010

410

611

212

012

412

813

65.

Max

imum

allo

wab

le lo

ad U

nfac

tore

d(lb

s/ft.

)11

4598

286

180

876

368

759

757

252

849

047

442

939

238

236

134

333

531

229

228

627

526

425

924

522

922

121

420

2

Dead

Loa

d(lb

s/ft.

)81

770

161

557

754

549

042

640

837

735

033

830

628

027

325

824

523

922

320

820

419

618

818

517

516

415

815

314

4

Live

Loa

d(lb

s/ft.

)67

357

750

647

544

940

435

133

631

028

827

925

223

022

521

220

219

718

317

216

816

215

515

214

413

513

012

611

96.

Max

imum

ben

ding

m

omen

t cap

acity

M1

(ft.-l

bs.)

2898

2898

2898

2898

2898

2898

2898

2898

2898

2898

2898

2898

4900

4900

4900

4900

4900

4900

4900

4900

4900

4900

4900

4900

4900

4900

4900

4900

4X8

SOLI

D L

INTE

LS

3,00

0 ps

i (D

ry m

ix)

Se

lf W

eigh

t 28#

/ft

Des

ign

Dat

af x

= 3,

000

psi (

min

imum

)f y

= 60

,000

psi

(per

AST

M-A

615)

Aver

age

wei

ght p

er li

neal

foot

of b

eam

- 33

lbs

Seis

mic

Cap

abilit

yDe

sign

form

ulas

as

per A

CI 3

18-1

2M

n= M

omen

t gov

erne

d by

ulti

mat

e st

reng

th =

0.9

(A2)(

f 2)(d

-a/2

) V n

= Sh

ear g

over

ned

by u

ltim

ate

stre

ngth

Mn=

1/8

Wn (

L 2)2

V n=

1/2

WnL

2

max

= M

axim

um a

llow

able

def

lect

ion

= L 2

/360

≤0.3

"U

L Fi

re R

atin

gs 1

-1/2

hou

r

Typi

cal S

ectio

n:W

idth

(W) =

3.6

25"

Hei

ght (

H) =

7.6

25"

Eff.

Dept

h (d

) = H

-1-1

/2" 1

/2" b

ar d

ia.

As a

min

imum

, the

lint

els

carry

the

apex

are

a ab

ove

the

span

. An

exam

ple

of th

e un

iform

equ

ival

ent a

pex

load

cal

cula

tion

follo

ws.

Hol

low

mas

onry

blo

ck w

eigh

ts fo

r det

erm

inin

g un

iform

equ

ival

ent a

pex

load

on

linte

l: 8"

blo

ck w

eigh

t = 3

5 ps

f (H

ollo

w)

12" b

lock

wei

ght =

50

psf (

Hol

low

)

Equi

vale

nt lo

ad o

f ape

x ar

ea =

.33

WL

Effe

ctiv

e sp

an "L

" of l

inte

l (ce

nter

line

of b

earin

g to

cen

terli

ne o

f bea

ring)

.W

eigh

t of m

ason

ry b

lock

"W" P

SFEX

AMPL

EEq

uiva

lent

ape

x lo

ad fo

r 4"X

8" L

inte

l with

effe

ctiv

e sp

an o

f 48"

Apex

Loa

d =

(.33)

(W) (

L) =

.33

(35p

sf/2

) (48

"/12

) = 2

3#FT

Cap

acity

of 4

X8 li

ntel

with

effe

ctiv

e sp

an o

f 48"

(from

load

tabl

e fo

r liv

e lo

ads)

= 5

72#/

FT

Th

eref

ore,

the

linte

l has

sig

nific

ant e

xces

s ca

paci

ty, i

f

supe

rimpo

sed

load

is lo

cate

d w

ithin

ape

x ar

ea, t

hen

refe

r to

the

load

tabl

es to

ens

ure

suffi

cien

t cap

acity

.

1. R

einfo

rcem

ent

rods

(A1)

Not r

equi

red

(1) #

3(1

) #5

(1) #

4(1

) #3

BON

D BE

AM(S

EE S

ECTI

ON

)

SEIS

MIC

REIN

FORC

ING

45°

EFFE

CTIV

E SP

AN (L

2)

MAS

ONRY

OPE

NIN

G (L

1)

H

SEIS

MIC

REI

NFO

RCEM

ENT

H=1/

2

EFFE

CTIV

E SP

ACE

APEX

AR

EA

SUPE

RIM

POSE

D LO

ADS

ABOV

E AP

EX

(

NOT

CARR

IED

BY L

INTE

L)As

a m

inim

um, t

he lin

tels

carry

the

apex

are

a ab

ove

the

span

. An

exam

ple

of th

e un

iform

equ

ivalen

t ape

x lo

ad

calcu

latio

n fo

llow

s.Ho

llow

mas

onry

blo

ck w

eight

s fo

r det

erm

inin

g un

iform

eq

uiva

lent a

pex

load

on

linte

l: 8"

blo

ck w

eight

= 3

5 ps

f (H

ollo

w)

12" b

lock

weig

ht =

50

psf (

Hollo

w)

Equi

valen

t loa

d of

ape

x ar

ea =

.33

WL

Effec

tive

span

"L" o

f lin

tel (c

ente

rline

of b

earin

g to

cen

ter-

line

of b

earin

g).

Weig

ht o

f mas

onry

blo

ck "W

" PSF

EXAM

PLE

Equi

valen

t ape

x lo

ad fo

r 4"X

8" L

inte

l with

effe

ctive

spa

n of

48"

Apex

Loa

d =

(.33)

(W) (

L) =

.33

(35p

sf/2

) (48

"/12)

= 2

3#FT

Capa

city

of 4

X8 lin

tel w

ith e

ffect

ive s

pan

of 4

8”(fr

om lo

ad ta

ble

for l

ive lo

ads)

= 5

72#/

FTTh

eref

ore,

the

linte

l has

sig

nific

ant e

xces

s ca

pacit

y, if

supe

rimpo

sed

load

is lo

cate

d w

ithin

ape

x ar

ea, t

hen

refe

r to

the

load

tabl

es to

ens

ure

suffic

ient c

apac

ity.

Des

ign

Dat

afx

= 3

,000

psi

(min

imum

)fy

= 6

0,00

0 ps

i (per

AST

M-A

615)

Aver

age

weig

ht p

er lin

eal f

oot o

f bea

m -

33

lbs

Seism

ic Ca

pabi

lityDe

sign

form

ulas

as

per A

CI 3

18-1

2M

n= M

omen

t gov

erne

d by

ultim

ate

stre

ngth

= 0

.9 (A

2)(f2

)(d-a

/2) V

n= S

hear

go

vern

ed b

y ul

timat

e st

reng

thM

n= 1

/8 W

n (L

2)2

Vn=

1/2

WnL

2m

ax =

Max

imum

allo

wab

le de

flect

ion

= L2

UL F

ire R

atin

gs 1

-1/2

hou

r

Typi

cal S

ectio

n:W

idth

(W) =

3.6

25"

Heig

ht (H

) = 7

.625

"Eff

. Dep

th (d

) = H

-1-1

/2" 1

/2" b

ar d

ia.G

rout

ed S

elf W

eight

= 3

3#/ft

- 5 -

Page 6: CONCRETE LINTEL · 2019-07-09 · on lintel: 6" block weight = 32 psf (Hollow) 12" block weight = 50 psf (Hollow) Equivalent load of apex area = .33 WL Effective span "L" of lintel

Top

Botto

m(2

) #4

2. N

omin

al lin

tel le

ngth

(inch

es)

3240

4856

6472

8088

9610

411

212

012

813

614

4

3. M

ason

ry o

peni

ng L

1 (in

ches

)16

2432

4048

5864

7280

8896

104

112

120

128

4. E

ffect

ive s

pan

L 2 (in

ches

)24

3240

4856

6472

8088

9610

411

212

012

813

65.

Max

imum

allo

wab

le lo

ad U

nfac

tore

d(lb

s/ft.

)17

1712

8810

3085

873

664

457

251

546

842

939

636

834

332

230

3

Dead

Loa

d(lb

s/ft.

)12

2692

073

561

352

646

040

836

833

430

628

326

324

523

021

6

Live

Loa

d(lb

s/ft.

)10

1075

760

550

443

337

933

630

327

525

223

321

620

218

917

86.

Max

imum

ben

ding

m

omen

t cap

acity

M1

(ft.-l

bs.)

5660

5660

5660

5660

5660

5660

5660

5660

5660

7744

7744

7744

7744

7744

7744

Desig

n Da

taf x

= 3,

000

psi (m

inim

um)

f y =

60,0

00 p

si (p

er A

STM

-A61

5)Av

erag

e w

eight

per

linea

l foo

t of b

eam

- 50

lbs

Seism

ic Ca

pabi

lityDe

sign

form

ulas

as

per A

CI 3

18-1

2M

n= M

omen

t gov

erne

d by

ultim

ate

stre

ngth

= 0

.9 (A

2)(f 2)

(d-

a/2)

Vn=

She

ar g

over

ned

by u

ltimat

e st

reng

thM

n= 1

/8 W

n (L 2

)2

V n=

1/2

WnL

2

max

= M

axim

um a

llow

able

defle

ctio

n =

L 2/3

60≤0

.3"

UL F

ire R

atin

gs 1

-1/2

hou

r

Typi

cal S

ectio

n:W

idth

(W) =

5.6

25"

Heig

ht (H

) = 7

.625

"Ef

f. De

pth

(d) =

H-1

-1/2

" 1/2

" bar

dia.

As a

min

imum

, the

linte

ls ca

rry th

e ap

ex a

rea

abov

e th

e sp

an. A

n ex

ampl

e of

th

e un

iform

equ

ivalen

t ape

x lo

ad c

alcul

atio

n fo

llow

s.

Hollo

w m

ason

ry b

lock

weig

hts

for d

eter

min

ing

unifo

rm e

quiva

lent a

pex

load

on

linte

l:6"

blo

ck w

eight

= 3

2 ps

f (Ho

llow

)12

" blo

ck w

eight

= 5

0 ps

f (Ho

llow

)

Equi

valen

t loa

d of

ape

x ar

ea =

.33

WL

Effe

ctive

spa

n "L

" of l

inte

l (cen

terlin

e of

bea

ring

to c

ente

rline

of b

earin

g).

Weig

ht o

f mas

onry

blo

ck "W

" PSF

EXAM

PLE

Equi

valen

t ape

x lo

ad fo

r 6"X

8" L

inte

l with

effe

ctive

spa

n of

48"

Apex

Loa

d =

(.33)

(W) (

L) =

.33

(32p

sf/2

) (48

"/12)

= 4

3#FT

C

apac

ity o

f 6X8

linte

l with

effe

ctive

spa

n of

48"

(fr

om lo

ad ta

ble

for l

ive lo

ads)

= 8

58#/

FT

Th

eref

ore,

the

linte

l has

sig

nific

ant e

xces

s ca

pacit

y, if

supe

rimpo

sed

load

is lo

cate

d w

ithin

ape

x ar

ea, t

hen

refe

r to

the

load

tabl

es to

ens

ure

suffic

ient c

apac

ity.

1. R

einfo

rcem

ent

rods

(A1)

6x8

SOLI

D L

INTE

LS

3,00

0 ps

i (D

ry m

ix)

Self

Wei

ght 4

2#/ft

(1) #

5No

t req

uire

d(1

) #3

(1) #

3

900

North

Har

tley

Stre

et, Y

ork,

PA

1740

4 |

717.

792.

4700

| w

ww.

york

build

ing.

com

SOLI

D L

INTE

LS -

6" x

8"

BON

D BE

AM(S

EE S

ECTI

ON

)

SEIS

MIC

REIN

FORC

ING

45°

EFFE

CTIV

E SP

AN (L

2)

MAS

ONRY

OPE

NIN

G (L

1)

H

SEIS

MIC

REI

NFO

RCEM

ENT

H=1/

2

EFFE

CTIV

E SP

ACE

APEX

AR

EA

SUPE

RIM

POSE

D LO

ADS

ABOV

E AP

EX

(

NOT

CARR

IED

BY L

INTE

L)

Des

ign

Dat

afx

= 3

,000

psi

(min

imum

)fy

= 6

0,00

0 ps

i (per

AST

M-A

615)

Aver

age

weig

ht p

er lin

eal f

oot o

f bea

m -

50

lbs

Seism

ic Ca

pabi

lityDe

sign

form

ulas

as

per A

CI 3

18-1

2M

n= M

omen

t gov

erne

d by

ultim

ate

stre

ngth

= 0

.9 (A

2)(f2

)(d-a

/2)

Vn=

Shea

r gov

erne

d by

ultim

ate

stre

ngth

Mn=

1/8

Wn

(L2)

2Vn

= 1/

2 W

nL2

max

= M

axim

um a

llow

able

defle

ctio

n =

L2/3

60≤0

.3"

UL F

ire R

atin

gs 1

-1/2

hou

r

Typi

cal S

ectio

n:W

idth

(W) =

5.6

25"

Heig

ht (H

) = 7

.625

"Eff

. Dep

th (d

) = H

-1-1

/2" 1

/2" b

ar d

ia.

As a

min

imum

, the

linte

ls ca

rry th

e ap

ex a

rea

abov

e th

e sp

an. A

n ex

ampl

e of

the

unifo

rm e

quiva

lent a

pex

load

calc

ulat

ion

follo

ws.

Hollo

w m

ason

ry b

lock

weig

hts

for d

eter

min

ing

unifo

rm

equi

valen

t ape

x lo

ad o

n lin

tel:

6" b

lock

weig

ht =

32

psf (

Hollo

w)

12" b

lock

weig

ht =

50

psf (

Hollo

w)

Equi

valen

t loa

d of

ape

x ar

ea =

.33

WL

Effec

tive

span

"L" o

f lin

tel (c

ente

rline

of b

earin

g to

cen

terlin

e of

bea

ring)

.W

eight

of m

ason

ry b

lock

"W" P

SF

EXAM

PLE

Equi

valen

t ape

x lo

ad fo

r 6"X

8" L

inte

l with

effe

ctive

spa

n of

48

"Ap

ex L

oad

= (.3

3) (W

) (L)

= .3

3 (3

2psf

/2) (

48"/1

2) =

43#

FTCa

pacit

y of

6X8

linte

l with

effe

ctive

spa

n of

48"

(from

load

tabl

e fo

r live

load

s) =

858

#/FT

Ther

efor

e, th

e lin

tel h

as s

igni

fican

t exc

ess

capa

city,

ifsu

perim

pose

d lo

ad is

loca

ted

with

in a

pex

area

, the

nre

fer t

o th

e lo

ad ta

bles

to e

nsur

e su

fficien

t cap

acity

.

- 6 -

Page 7: CONCRETE LINTEL · 2019-07-09 · on lintel: 6" block weight = 32 psf (Hollow) 12" block weight = 50 psf (Hollow) Equivalent load of apex area = .33 WL Effective span "L" of lintel

Top

Botto

m(2

)#4

2.No

min

al lin

tel le

ngth

(inch

es)

4048

5664

7280

8896

104

112

120

128

136

144

3.M

ason

ry o

peni

ng L

1 (in

ches

)24

3240

4858

6472

8088

9610

411

212

012

8

4.Ef

fect

ive s

pan

L 2 (in

ches

)32

4048

5664

7280

8896

104

112

120

128

136

5.M

axim

um a

llow

able

load

Unf

acto

red

(lbs/

ft.)

1722

1374

1144

980

858

764

686

624

572

528

490

458

428

404

Dead

Loa

d(lb

s/ft.

)12

3098

181

770

061

354

649

044

540

837

735

032

730

528

8

Live

Loa

d(lb

s/ft.

)10

1380

867

357

650

544

940

336

733

631

028

826

925

223

76.

Max

imum

ben

ding

mom

ent c

apac

ity M

1(ft

.-lbs

.)28

9828

9828

9828

9828

9849

0049

0049

0049

0049

0049

0049

0049

0049

00

Desig

n Da

taf x

= 3,

000

psi (m

inim

um)

f y =

60,0

00 p

si (p

er A

STM

-A61

5)Av

erag

e w

eight

per

linea

l foo

t of b

eam

- 65

lbs

Seism

ic Ca

pabi

lityDe

sign

form

ulas

as

per A

CI 3

18-1

2M

n= M

omen

t gov

erne

d by

ultim

ate

stre

ngth

= 0

.9 (A

2)(f 2)

(d-

a/2)

Vn=

She

ar g

over

ned

by u

ltimat

e st

reng

thM

n= 1

/8 W

n (L 2

)2

V n=

1/2

WnL

2

max

= M

axim

um a

llow

able

defle

ctio

n =

L 2/3

60≤0

.3"

UL F

ire R

atin

gs 1

-1/2

hou

r

Typi

cal S

ectio

n:W

idth

(W) =

7.6

25"

Heig

ht (H

) = 7

.625

"Ef

f. De

pth

(d) =

H-1

-1/2

" 1/2

" bar

dia.

As a

min

imum

, the

linte

ls ca

rry th

e ap

ex a

rea

abov

e th

e sp

an. A

n ex

ampl

e of

th

e un

iform

equ

ivalen

t ape

x lo

ad c

alcul

atio

n fo

llow

s.

Hollo

w m

ason

ry b

lock

weig

hts

for d

eter

min

ing

unifo

rm e

quiva

lent a

pex

load

on

linte

l:8"

blo

ck w

eight

= 3

5 ps

f (Ho

llow

)12

" blo

ck w

eight

= 5

0 ps

f (Ho

llow

)

Equi

valen

t loa

d of

ape

x ar

ea =

.33

WL

Effe

ctive

spa

n "L

" of l

inte

l (cen

terlin

e of

bea

ring

to c

ente

rline

of b

earin

g).

Weig

ht o

f mas

onry

blo

ck "W

" PSF

EXAM

PLE

Equi

valen

t ape

x lo

ad fo

r 8"X

8" L

inte

l with

effe

ctive

spa

n of

48"

Apex

Loa

d =

(.33)

(W) (

L) =

.33

(35p

sf) (

48"/1

2) =

46#

FT

Cap

acity

of 8

X8 lin

tel w

ith e

ffect

ive s

pan

of 4

8"

(from

load

tabl

e fo

r live

load

s) =

114

4#/F

T

Ther

efor

e, th

e lin

tel h

as s

igni

fican

t exc

ess

capa

city,

if

su

perim

pose

d lo

ad is

loca

ted

with

in a

pex

area

, the

n

re

fer t

o th

e lo

ad ta

bles

to e

nsur

e su

fficien

t cap

acity

.

8x8

SOLI

D L

INTE

LS

3,00

0 ps

i (D

ry m

ix)

Self

Wei

ght 5

6#/ft

(2)#

3(2

)#3

(2)#

51.

Rein

forc

emen

tro

ds (A

1)(2

)#3

(2)2) #

3

900

North

Har

tley

Stre

et, Y

ork,

PA

1740

4 |

717.

792.

4700

| w

ww.

york

build

ing.

com

SOLI

D L

INTE

LS -

8" x

8" BO

ND

BEAM

(SEE

SEC

TIO

N)

SEIS

MIC

REIN

FORC

ING

45°

EFFE

CTIV

E SP

AN (L

2)

MAS

ONRY

OPE

NIN

G (L

1)

H

SEIS

MIC

REI

NFO

RCEM

ENT

H=1/

2

EFFE

CTIV

E SP

ACE

APEX

AR

EA

SUPE

RIM

POSE

D LO

ADS

ABOV

E AP

EX

(

NOT

CARR

IED

BY L

INTE

L)D

esig

n D

ata

fx =

3,0

00 p

si (m

inim

um)

fy =

60,

000

psi (p

er A

STM

-A61

5)Av

erag

e w

eight

per

LF

of b

eam

- 65

lbs

Seism

ic Ca

pabi

lityDe

sign

form

ulas

as

per A

CI 3

18-1

2M

n= M

omen

t gov

erne

d by

ultim

ate

stre

ngth

= 0

.9 (A

2)(f2

)(da/

2) V

n= S

hear

gov

erne

d by

ultim

ate

stre

ngth

Mn=

1/8

Wn

(L2)

2Vn

= 1/

2 W

nL2

max

= M

axim

um a

llow

able

defle

ctio

n =

L2/3

60≤0

.3"

UL F

ire R

atin

gs 1

-1/2

hou

r

Typi

cal S

ectio

n:W

idth

(W) =

7.6

25"

Heig

ht (H

) = 7

.625

"Eff

. Dep

th (d

) = H

-1-1

/2" 1

/2" b

ar d

ia.

As a

min

imum

, the

linte

ls ca

rry th

e ap

ex a

rea

abov

e th

e sp

an.

An e

xam

ple

ofbt

he u

nifo

rm e

quiva

lent a

pex

load

calc

ulat

ion

follo

ws.

Hollo

w m

ason

ry b

lock

weig

hts

for d

eter

min

ing

unifo

rm e

quiva

-len

t ape

x lo

ad o

n lin

tel:

8" b

lock

weig

ht =

35

psf (

Hollo

w)

12" b

lock

weig

ht =

50

psf (

Hollo

w)

Equi

valen

t loa

d of

ape

x ar

ea =

.33

WL

Effec

tive

span

"L" o

f lin

tel (c

ente

rline

of b

earin

g to

cen

terlin

e of

be

arin

g).

Weig

ht o

f mas

onry

blo

ck "W

" PSF

EXAM

PLE

Equi

valen

t ape

x lo

ad fo

r 8"X

8" L

inte

l with

effe

ctive

spa

n of

48"

Apex

Loa

d =

(.33)

(W) (

L) =

.33

(35p

sf) (

48"/1

2) =

46#

FTCa

pacit

y of

8X8

linte

l with

effe

ctive

spa

n of

48"

(from

load

tabl

e fo

r live

load

s) =

114

4#/F

TTh

eref

ore,

the

linte

l has

sig

nific

ant e

xces

s ca

pacit

y, if

supe

rimpo

sed

load

is lo

cate

d w

ithin

ape

x ar

ea, t

hen

refe

r to

the

load

tabl

es to

ens

ure

suffic

ient c

apac

ity.

- 7 -

Page 8: CONCRETE LINTEL · 2019-07-09 · on lintel: 6" block weight = 32 psf (Hollow) 12" block weight = 50 psf (Hollow) Equivalent load of apex area = .33 WL Effective span "L" of lintel

Top

Botto

m

2. N

omin

al lin

tel le

ngth

(inch

es)

3240

4854

5660

6466

7278

8084

8890

9610

210

410

811

211

412

012

813

213

614 4

3. M

ason

ry o

peni

ng L

1 (in

ches

)16

2432

3840

4448

5058

6264

6872

7480

8688

9296

9810

411

211

612

012 8

4. E

ffect

ive s

pan

L 2 (in

ches

)24

3240

4648

5256

5864

7072

7680

8288

9496

100

104

106

112

120

124

128

13 65.

Max

imum

allo

wab

le lo

ad U

nfac

tore

d(lb

s/ft.

)22

1716

6313

3011

5711

0810

2395

091

783

176

073

970

066

565

060

556

655

453

251

150

247

544

342

941

639 1

Dead

Loa

d(lb

s/ft.

)15

8311

8795

082

679

173

067

965

559

354

452

850

047

546

443

240

439

538

036

535

833

931

630

629

727 9

Live

Loa

d(lb

s/ft.

)13

0497

878

268

065

160

155

953

948

944

742

841

138

538

235

633

432

531

330

029

527

926

025

224

523 0

6. M

axim

um b

endi

ng

mom

ent c

apac

ity M

1(ft

.-lbs

.)58

9658

9658

9658

9658

9658

9658

9658

9610

434

1043

410

434

1043

410

434

1043

410

434

1043

410

434

1043

410

434

1043

410

434

1563

215

632

1563

215

632

D esig

n Da

taf x

= 5,

000

psi (m

inim

um)

f y =

60,0

00 p

si (p

er A

STM

-A61

5)Av

erag

e w

eight

per

linea

l foo

t of b

eam

- 50

lbs

(Gro

uted

Sol

id)

Seism

ic Ca

pabi

lityDe

sign

form

ulas

as

per A

CI 3

18-1

2M

n= M

omen

t gov

erne

d by

ultim

ate

stre

ngth

= 0

.9 (A

2)(f 2)

(d-

a/2)

Vn=

She

ar g

over

ned

by u

ltimat

e st

reng

thM

n= 1

/8 W

n (L 2

)2

V n=

1/2

WnL

2

max

= M

axim

um a

llow

able

defle

ctio

n =

L 2/3

60≤0

.3" (

9ft L

inte

l) UL

Fire

Rat

ings

1-1

/2 h

our

Typi

cal S

ectio

n:W

idth

(W) =

5-5

/8"

Heig

ht (H

) = 7

.625

"Ef

f. De

pth

(d) =

H-1

-1/2

" 1/2

" bar

dia.

As a

min

imum

, the

linte

ls ca

rry th

e ap

ex a

rea

abov

e th

e sp

an. A

n ex

ampl

e of

the

unifo

rm e

quiva

lent a

pex

load

calc

ulat

ion

follo

ws.

Hollo

w m

ason

ry b

lock

weig

hts

for d

eter

min

ing

unifo

rm e

quiva

lent a

pex

load

on

linte

l: 6"

blo

ck w

eight

= 3

0 ps

f (Ho

llow

)12

" blo

ck w

eight

= 5

0 ps

f (Ho

llow

)

Equi

valen

t loa

d of

ape

x ar

ea =

.33

WL

Effe

ctive

spa

n "L

" of l

inte

l (cen

terlin

e of

bea

ring

to c

ente

rline

of b

earin

g).

Weig

ht o

f mas

onry

blo

ck "W

" PSF

EXAM

PLE

Equi

valen

t ape

x lo

ad fo

r 6"X

8" L

inte

l with

effe

ctive

spa

n of

48"

Apex

Loa

d =

(.33)

(W) (

L) =

.33

(35p

sf/2

) (48

"/12)

= 2

0#FT

C

apac

ity o

f 6X8

linte

l with

effe

ctive

spa

n of

48"

(fr

om lo

ad ta

ble

for l

ive lo

ads)

= 2

916#

/FT

Th

eref

ore,

the

linte

l has

sig

nific

ant e

xces

s ca

pacit

y, if

supe

rimpo

sed

load

is lo

cate

d w

ithin

ape

x ar

ea, t

hen

refe

r to

the

load

tabl

es to

ens

ure

suffic

ient c

apac

ity.

6x8

"U"

LIN

TELS

5,

000

psi P

REC

AST

BO

ND

BEA

M L

INTE

LSSe

lf W

eigh

t 34#

/ft1.

Rein

forc

emen

t ro

ds (A

1)(2

) #3

(2) #

3(2

) #3

(2) #

5

900

North

Har

tley

Stre

et, Y

ork,

PA

1740

4 |

717.

792.

4700

| w

ww.

york

build

ing.

com

U- L

INTE

LS -

6" x

8"

BON

D BE

AM(S

EE S

ECTI

ON

)

SEIS

MIC

REIN

FORC

ING

45°

EFFE

CTIV

E SP

AN (L

2)

MAS

ONRY

OPE

NIN

G (L

1)

H

SEIS

MIC

REI

NFO

RCEM

ENT

H=1/

2

EFFE

CTIV

E SP

ACE

APEX

AR

EA

SUPE

RIM

POSE

D LO

ADS

ABOV

E AP

EX

(

NOT

CARR

IED

BY L

INTE

L)

- 8 -

Page 9: CONCRETE LINTEL · 2019-07-09 · on lintel: 6" block weight = 32 psf (Hollow) 12" block weight = 50 psf (Hollow) Equivalent load of apex area = .33 WL Effective span "L" of lintel

Top

Botto

m

2. N

omin

al lin

tel le

ngth

(inch

es)

3236

4042

4448

5456

6064

6672

7880

8488

9096

102

104

108

112

114

120

128

132

136

144

3. M

ason

ry o

peni

ng L

1 (in

ches

)16

2024

2628

3238

4044

4850

5862

6468

7274

8086

8892

9698

104

112

116

120

128

4. E

ffect

ive s

pan

L 2 (in

ches

)24

2832

3436

4048

4852

5658

6470

7276

8082

8894

9610

010

410

611

212

012

412

813

65.

Max

imum

all

owab

le lo

ad

Unfa

ctor

ed(lb

s/ft.

)29

5725

3422

1720

8719

7117

4415

4414

7813

6712

6712

2311

0910

1498

593

488

786

580

675

573

971

068

266

963

459

157

255

452

2

Dead

Loa

d(lb

s/ft.

)21

1218

1015

8314

9014

0812

4511

0210

5597

690

587

479

272

470

366

763

461

857

653

952

850

748

747

845

342

240

839

637

3

Live

Loa

d(lb

s/ft.

)17

3914

9013

0412

2711

5910

2490

886

980

474

571

965

259

657

954

952

250

947

444

443

541

740

139

337

334

733

632

630

76.

Max

imum

ben

ding

m

omen

t cap

acity

M1

(ft.-l

bs.)

5896

5896

5896

5896

5896

5896

5896

5896

5896

5896

5896

1043

410

434

1043

410

434

1043

410

434

1043

410

434

1043

410

434

1043

410

434

1043

415

632

1563

215

632

1563

2

D esig

n Da

taf x

= 5,

000

psi (m

inim

um)

f y =

60,0

00 p

si (p

er A

STM

-A61

5)Av

erag

e w

eight

per

linea

l foo

t of b

eam

- 65

lbs

(Gro

uted

So

lid) S

eism

ic Ca

pabi

lityDe

sign

form

ulas

as

per A

CI 3

18-1

2M

n= M

omen

t gov

erne

d by

ultim

ate

stre

ngth

= 0

.9 (A

2)(f 2)

(d-

a/2)

Vn=

She

ar g

over

ned

by u

ltimat

e st

reng

thM

n= 1

/8 W

n (L 2

)2

V n=

1/2

WnL

2

max

= M

axim

um a

llow

able

defle

ctio

n =

L 2/3

60≤0

.3" (

9ft L

inte

l) UL

Fire

Rat

ings

1-1

/2 h

our

T ypi

cal S

ectio

n:W

idth

(W) =

7-5

/8"

Heig

ht (H

) = 7

.625

"Ef

f. De

pth

(d) =

H-1

-1/2

" 1/2

" bar

dia.

As a

min

imum

, the

linte

ls ca

rry th

e ap

ex a

rea

abov

e th

e sp

an. A

n ex

ampl

e of

the

unifo

rm e

quiva

lent a

pex

load

calc

ulat

ion

follo

ws.

Hollo

w m

ason

ry b

lock

weig

hts

for d

eter

min

ing

unifo

rm e

quiva

lent a

pex

load

on

linte

l: 8"

blo

ck w

eight

= 3

5 ps

f (Ho

llow

)12

" blo

ck w

eight

= 5

0 ps

f (Ho

llow

)

Equi

valen

t loa

d of

ape

x ar

ea =

.33

WL

Effe

ctive

spa

n "L

" of l

inte

l (cen

terlin

e of

bea

ring

to c

ente

rline

of b

earin

g).

Weig

ht o

f mas

onry

blo

ck "W

" PSF

EXAM

PLE

Equi

valen

t ape

x lo

ad fo

r 8"X

8" L

inte

l with

effe

ctive

spa

n of

48"

Apex

Loa

d =

(.33)

(W) (

L) =

.33

(35p

sf) (

48"/1

2) =

46#

FT

Cap

acity

of 8

X8 lin

tel w

ith e

ffect

ive s

pan

of 4

8"

(from

load

tabl

e fo

r live

load

s) =

298

8#/F

T

Ther

efor

e, th

e lin

tel h

as s

igni

fican

t exc

ess

capa

city,

if

su

perim

pose

d lo

ad is

loca

ted

with

in a

pex

area

, the

n

re

fer t

o th

e lo

ad ta

bles

to e

nsur

e su

fficien

t cap

acity

.

1. R

einf

orce

men

t ro

ds (A

1)

8x8

"U"

LIN

TELS

5,

000

psi P

REC

AST

BO

ND

BEA

M L

INTE

LSSe

lf W

eigh

t 39#

/ft(2

) #3

(2) #

3(2

) #3

(2) #

5

900

North

Har

tley

Stre

et, Y

ork,

PA

1740

4 |

717.

792.

4700

| w

ww.

york

build

ing.

com

U- L

INTE

LS -

8" x

8"

BON

D BE

AM(S

EE S

ECTI

ON

)

SEIS

MIC

REIN

FORC

ING

45°

EFFE

CTIV

E SP

AN (L

2)

MAS

ONRY

OPE

NIN

G (L

1)

H

SEIS

MIC

REI

NFO

RCEM

ENT

H=1/

2

EFFE

CTIV

E SP

ACE

APEX

AR

EA

SUPE

RIM

POSE

D LO

ADS

ABOV

E AP

EX

(

NOT

CARR

IED

BY L

INTE

L)

- 9 -

Page 10: CONCRETE LINTEL · 2019-07-09 · on lintel: 6" block weight = 32 psf (Hollow) 12" block weight = 50 psf (Hollow) Equivalent load of apex area = .33 WL Effective span "L" of lintel

Top

Botto

m

2. N

omin

al lin

tel le

ngth

(inch

es)

3240

4854

5660

6466

7278

8084

8890

9610

210

410

811

211

412

012

813

213

614

4

3. M

ason

ry o

peni

ng L

1 (in

ches

)16

2432

3840

4448

5058

6264

6872

7480

8688

9296

9810

411

211

612

012

8

4. E

ffect

ive s

pan

L 2 (in

ches

)24

3240

4648

5256

5864

7072

7680

8288

9496

100

104

106

112

120

124

128

136

5. M

axim

um a

llow

able

load

Unf

acto

red

(lbs/

ft.)

3760

2820

2256

1961

1880

1735

1611

1555

1410

1289

1253

1187

1128

1100

1025

960

940

902

868

851

805

752

727

705

663

Fact

ored

Dea

dLo

ad (1

.4)

(lbs/

ft.)

2685

2014

1611

1440

1342

1239

1150

1110

1007

921

895

848

805

785

732

685

671

644

620

608

575

537

519

504

474

Fact

ored

Live

Load

(1.7

)(lb

s/ft.

)22

1216

5913

2711

5411

0610

2094

791

482

975

873

769

866

464

760

356

555

353

051

050

047

344

742

241

539

06.

Max

imum

ben

ding

m

omen

t cap

acity

M1

(ft.-l

bs.)

1568

015

680

1568

015

680

1568

015

680

1568

015

680

1568

015

680

1568

015

680

1568

015

680

1568

015

680

1568

015

680

1568

015

680

1568

015

680

1568

015

680

1568

0

10x8

"U

" LI

NTE

LS

5,00

0 ps

i PR

ECAS

T B

ON

D B

EAM

LIN

TELS

Self

Wei

ght 5

5#/ft

1. R

einfo

rcem

ent

rods

(A1)

(2) #

3(2

) #5

D esig

n Da

taf x

= 5,

000

psi (m

inim

um)

f y =

60,0

00 p

si (p

er A

STM

-A61

5)Av

erag

e se

lf w

eight

per

linea

l foo

t of b

eam

- 83

lbs

(Gro

uted

So

lid) S

eism

ic Ca

pabi

lityDe

sign

form

ulas

as

per A

CI 3

18-1

2M

n= M

omen

t gov

erne

d by

ultim

ate

stre

ngth

= 0

.9 (A

2)(f 2)

(d-a

/2)

V n=

Shea

r gov

erne

d by

ultim

ate

stre

ngth

Mn=

1/8

Wn (

L 2)2

V n=

1/2

WnL

2

max

= M

axim

um a

llow

able

defle

ctio

n =

L 2/3

60≤0

.3"

UL F

ire R

atin

gs 1

-1/2

hou

r

Typi

cal S

ectio

n:W

idth

(W) =

9-5

/8"

Heig

ht (H

) = 7

.625

"Ef

f. De

pth

(d) =

H-1

-1/2

" 1/2

" bar

dia.

As a

min

imum

, the

linte

ls ca

rry th

e ap

ex a

rea

abov

e th

e sp

an. A

n ex

ampl

e of

the

unifo

rm e

quiva

lent a

pex

load

calc

ulat

ion

follo

ws.

Hollo

w m

ason

ry b

lock

weig

hts

for d

eter

min

ing

unifo

rm e

quiva

lent a

pex

load

on

linte

l: 6"

blo

ck w

eight

= 3

0 ps

f (Ho

llow

)12

" blo

ck w

eight

= 5

0 ps

f (Ho

llow

)

Equi

valen

t loa

d of

ape

x ar

ea =

.33

WL

Effe

ctive

spa

n "L

" of l

inte

l (cen

terlin

e of

bea

ring

to c

ente

rline

of b

earin

g).

Weig

ht o

f mas

onry

blo

ck "W

" PSF

EXAM

PLE

Equi

valen

t ape

x lo

ad fo

r 10"

X8" L

inte

l with

effe

ctive

spa

n of

48"

Apex

Loa

d =

(.33)

(W) (

L) =

.33

(60p

sf) (

48"/1

2) =

80#

FT

Cap

acity

of 1

0X8

linte

l with

effe

ctive

spa

n of

48"

(fr

om lo

ad ta

ble

for l

ive lo

ads)

= 1

106#

/FT

Th

eref

ore,

the

linte

l has

sig

nific

ant e

xces

s ca

pacit

y, if

supe

rimpo

sed

load

is lo

cate

d w

ithin

ape

x ar

ea, t

hen

refe

r to

the

load

tabl

es to

ens

ure

suffic

ient c

apac

ity.

900

North

Har

tley

Stre

et, Y

ork,

PA

1740

4 |

717.

792.

4700

| w

ww.

york

build

ing.

com

U- L

INTE

LS -

10" x

8"

45°

EFFE

CTIV

E SP

AN (L

2)

MAS

ONRY

OPE

NIN

G (L

1)

H

SEIS

MIC

REI

NFO

RCEM

ENT

H=1/

2

EFFE

CTIV

E SP

ACE

APEX

AR

EA

SUPE

RIM

POSE

D LO

ADS

ABOV

E AP

EX

(

NOT

CARR

IED

BY L

INTE

L)

BON

D BE

AM(S

EE S

ECTI

ON

)

SEIS

MIC

REIN

FORC

ING

- 10 -

Page 11: CONCRETE LINTEL · 2019-07-09 · on lintel: 6" block weight = 32 psf (Hollow) 12" block weight = 50 psf (Hollow) Equivalent load of apex area = .33 WL Effective span "L" of lintel

Top

Botto

m

2. N

omin

al lin

tel le

ngth

(inch

es)

3240

4854

5660

6466

7278

8084

8890

9610

210

410

811

211

412

012

813

213

614

4

3. M

ason

ry o

peni

ng L

1 (in

ches

)16

2432

3840

4448

5058

6264

6872

7480

8688

9296

9810

411

211

612

012

8

4. E

ffect

ive s

pan

L 2 (in

ches

)24

3240

4648

5256

5864

7072

7680

8288

9496

100

104

106

112

120

124

128

136

5. M

axim

um a

llow

able

load

Unf

acto

red

(lbs/

ft.)

4435

3326

2661

2314

2217

2047

1900

1835

1663

1520

1478

1400

1330

1298

1209

1132

1108

1064

1023

1004

950

887

858

831

782

Fact

ored

Dea

dLo

ad (1

.4)

(lbs/

ft.)

3167

2375

1900

1652

1583

1462

1357

1311

1188

1086

1056

1000

950

927

863

808

791

760

730

717

678

633

613

593

558

Fact

ored

Live

Load

(1.7

)(lb

s/ft.

)26

0819

5615

6513

6113

0412

0411

1710

7997

889

486

982

378

276

371

166

565

262

660

259

055

952

250

548

946

06.

Max

imum

ben

ding

m

omen

t cap

acity

M1

(ft.-l

bs.)

1600

016

000

1600

016

000

1600

016

000

1600

016

000

1600

016

000

1600

016

000

1600

016

000

1600

016

000

1600

016

000

1600

016

000

1600

016

000

1600

016

000

1600

0

As a

min

imum

, the

linte

ls ca

rry th

e ap

ex a

rea

abov

e th

e sp

an. A

n ex

ampl

e of

the

unifo

rm e

quiva

lent a

pex

load

calc

ulat

ion

follo

ws.

Hollo

w m

ason

ry b

lock

weig

hts

for d

eter

min

ing

unifo

rm e

quiva

lent a

pex

load

on

linte

l: 6"

blo

ck w

eight

= 3

0 ps

f (Ho

llow

)12

" blo

ck w

eight

= 5

0 ps

f (Ho

llow

)

Equi

valen

t loa

d of

ape

x ar

ea =

.33

WL

Effe

ctive

spa

n "L

" of l

inte

l (cen

terlin

e of

bea

ring

to c

ente

rline

of b

earin

g).

Weig

ht o

f mas

onry

blo

ck "W

" PSF

EXAM

PLE

Equi

valen

t ape

x lo

ad fo

r 12"

X8" L

inte

l with

effe

ctive

spa

n of

48"

Apex

Loa

d =

(.33)

(W) (

L) =

.33

(60p

sf) (

48"/1

2) =

80#

FT

Cap

acity

of 1

2X8

linte

l with

effe

ctive

spa

n of

48"

(fr

om lo

ad ta

ble

for l

ive lo

ads)

= 3

330#

/FT

Th

eref

ore,

the

linte

l has

sig

nific

ant e

xces

s ca

pacit

y, if

supe

rimpo

sed

load

is lo

cate

d w

ithin

ape

x ar

ea, t

hen

refe

r to

the

load

tabl

es to

ens

ure

suffic

ient c

apac

ity.

(2) #

3(2

) #5

12x8

"U

" LI

NTE

LS

5,00

0 ps

i PR

ECAS

T B

ON

D B

EAM

LIN

TELS

Self

Wei

ght 7

0#/ft

Desig

n Da

taf x

= 5,

000

psi (m

inim

um)

f y =

60,0

00 p

si (p

er A

STM

-A61

5)Av

erag

e se

lf w

eight

per

linea

l foo

t of b

eam

- 10

0 lb

s (G

rout

ed

Solid

) Seis

mic

Capa

bility

Desig

n fo

rmul

as a

s pe

r ACI

318

-12

Mn=

Mom

ent g

over

ned

by u

ltimat

e st

reng

th =

0.9

(A2)(

f 2)(d

-a/2

) V n

= Sh

ear g

over

ned

by u

ltimat

e st

reng

thM

n= 1

/8 W

n (L 2

)2

V n=

1/2

WnL

2

max

= M

axim

um a

llow

able

defle

ctio

n =

L 2/3

60≤0

.3"

UL F

ire R

atin

gs 1

-1/2

hou

r

Typi

cal S

ectio

n:W

idth

(W) =

11-

5/8"

Heig

ht (H

) = 7

.625

"Ef

f. De

pth

(d) =

H-1

-1/2

" 1/2

" bar

dia.

1. R

einfo

rcem

ent

rods

(A1)

900

North

Har

tley

Stre

et, Y

ork,

PA

1740

4 |

717.

792.

4700

| w

ww.

york

build

ing.

com

U- L

INTE

LS -

12" x

8"

BON

D BE

AM(S

EE S

ECTI

ON

)

SEIS

MIC

REIN

FORC

ING

45°

EFFE

CTIV

E SP

AN (L

2)

MAS

ONRY

OPE

NIN

G (L

1)

H

SEIS

MIC

REI

NFO

RCEM

ENT

H=1/

2

EFFE

CTIV

E SP

ACE

APEX

AR

EA

SUPE

RIM

POSE

D LO

ADS

ABOV

E AP

EX

(

NOT

CARR

IED

BY L

INTE

L)

- 11 -

Page 12: CONCRETE LINTEL · 2019-07-09 · on lintel: 6" block weight = 32 psf (Hollow) 12" block weight = 50 psf (Hollow) Equivalent load of apex area = .33 WL Effective span "L" of lintel

900 North Hartley Street

York, PA 17404

717.792.4700

www.yorkbuilding.com

© 2019 York Building Products. All rights reserved. 010319-200-POS