LINTEL REINFORCEMENT FOR OPENINGS IN WALL1

Vertical Loads in Pounds per Lineal Foot of Lintel2

Minimum Reinforcing is 1 #5 Rebar Top and Bottom of the Lintel for Spans up to 8'-0"3

Reinforcing is 2 #6 or 3 #5 for Spans 14'-0" and greater.

 

Depth = 12"

Depth = 16"

Depth = 20"

Depth = 24"

Depth = 32"

SPAN

With S.R.4

Without S.R.4

With S.R.4

Without S.R.4

With S.R.4

Without S.R.4

With S.R.4

Without S.R.4

With S.R.4

Without S.R.4

5'3

2745.00

280.00

3925.00

475.00

5000.00

890.00
Shear Reinforcing

#3@8

-----

#3@8

-----

#3@12

-----

6'3

1890.00

215.00

2710.00

350.00

3530.00

620.00

5000.00

925.00
Shear Reinforcing

#3@8

-----

#3@8

-----

#3@12

-----

#3@11

-----

7'3

1375.00

175.00

1980.00

280.00

2580.00

475.00

5000.00

675.00

5000.00

1360.00
Shear Reinforcing

#3@8

-----

#3@8

-----

#3@12

-----

#3@12

-----

#3@16

-----

8'3

1040.00

150.00

1505.00

230.00

1965.00

385.00

4820.00

530.00

5000.00

970.00
Shear Reinforcing

#3@8

-----

#3@8

-----

#3@12

-----

#3@10

-----

#3@16

-----

9'

1550.00

130.00

2280.00

200.00

3080.00

325.00

3810.00

435.00

5000.00

755.00
Shear Reinforcing

#3@8

-----

#3@8

-----

#3@9

-----

#3@10

-----

#3@16

-----

10'

1200*

115.00

1850.00

170.00

2,495

280.00

3085.00

370.00

4265.00

620.00
Shear Reinforcing

#3@8

-----

#3@9

-----

#3@10

-----

#3@12

-----

#3@16

-----

11'

905*

100.00

1530.00

155.00

2060.00

245.00

2550.00

325.00

3525.00

525.00
Shear Reinforcing

#3@8

-----

#3@10

-----

#3@12

-----

#3@12

-----

#3@16

-----

12'

695*

90.00

1280.00

140.00

1730.00

230.00

2140.00

285.00

2960.00

450.00
Shear Reinforcing

#3@8

-----

#3@12

-----

#3@12

-----

#3@12

-----

#3@16

-----

13'

550*

85.00

1090.00

125.00

1475.00

195.00

1825.00

255.00

2525.00

400.00
Shear Reinforcing

#3@8

-----

#3@12

-----

#3@14

-----

#3@14

-----

#3@18

-----

14'5

595*

75.00

1275.00

115.00

1755.00

180.00

2185.00

230.00

3040.00

355.00
Shear Reinforcing

#3@8

-----

#3@10

-----

#3@10

-----

#3@10

-----

#3@12

-----

15'5

485*

70.00

1050*

105.00

1530.00

165.00

1905.00

210.00

2650.00

325.00
Shear Reinforcing

#3@8

-----

#3@10

-----

#3@10

-----

#3@10

-----

#3@12

-----

16'5

400*

65.00

860*

95.00

1345.00

150.00

1670.00

195.00

2325.00

295.00
Shear Reinforcing

#3@8

-----

#3@10

-----

#3@10

-----

#3@10

-----

#3@12

-----

 

* Limited by long term deflection of l/240, 1997 UBC Table 16-D.

Concrete= 3,000 psi, Rebar = 60,000 psi, Table based on one end continuous and one end simply supported; loads are superimposed loads onto the lintel. Loads for Grade 40 reinforcing approximately 2/3 of tabulated loads not controlled by deflection.

Vertical Loads applied along center of lintel and top of lintel supported against lateral buckling. Lateral loads not included.

Minimum 2 #5 rebar required each side of all openings, extended 24" beyond opening,1997 UBC 1914.3.7. and ACI 318 Sect. 14.3.7. 2 sets of 2 #5 required over openings more than 8' and lintels greater than 20" deep.

S.R. = Shear Reinforcing. Shear reinforcing to be bars placed at a 45 degree angle from the top of the lintel at the ends angling downward toward the center of the opening. Spacing for loads other than tabluated may be linearly interpolated between the load for no S.R. and maximum load up to a maximum spacing of 80% of the lintel depth.

Reinforcing 2 #6 or 3 #5 for spans over 14' . 

 

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