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Section 4: Useful Information

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General Formulas

General Formulas. (click in image to see full-size image) Anchor: #i998732

Figure 1-4. General Formulas.

Online users can click 1-4 to view this illustration in PDF.

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Tables of English Decimal Values

Anchor: #i1012357Table 1-1: Decimals of a foot for each 1/16 of an inch

Inch

0"

1"

2"

3"

4"

5"

6"

7"

8"

9"

10"

11"

0"

.0000

.0833

.1667

.2500

.3333

.4167

.5000

.5833

.6667

.7500

.8333

.9167

1/16"

.0052

.0885

.1719

.2552

.3385

.4219

.5052

.5885

.6719

.7552

.8385

.9219

1/8"

.0104

.0938

.1771

.2604

.3438

.4271

.5104

.5938

.6771

.7604

.8438

.9271

3/16"

.0156

.0990

.1823

.2656

.3490

.4323

.5156

.5990

.6823

.7656

.8490

.9323

1/4"

.0208

.1042

.1875

.2708

.3542

.4375

.5208

.6042

.6875

.7708

.8542

.9375

5/16"

.0260

.1094

.1927

.2760

.3594

.4427

.5260

.6094

.6927

.7760

.8594

.9427

3/8"

.0313

.1146

.1979

.2813

.3646

.4479

.5313

.6146

.6979

.7813

.8646

.9479

7/16"

.0365

.1198

.2031

.2865

.3698

.4531

.5365

.6198

.7031

.7865

.8698

.9531

1/2"

.0417

.1250

.2083

.2917

.3750

.4583

.5417

.6250

.7083

.7917

.8750

.9583

9/16"

.0469

.1302

.2135

.2969

.3802

.4635

.5469

.6302

.7135

.7969

.8802

.9635

5/8"

.0521

.1354

.2188

.3021

.3854

.4688

.5521

.6354

.7188

.8021

.8854

.9688

11/16"

.0573

.1406

.2240

.3073

.3906

.4740

.5573

.6406

.7240

.8073

.8904

.9740

3/4"

.0625

.1458

.2292

.3125

.3958

.4792

.5625

.6458

.7292

.8125

.8958

.9792

13/16"

.0677

.1510

.2344

.3177

.4010

.4844

.5677

.6510

.7344

.8177

.9010

.9844

7/8"

.0729

.1563

.2396

.3229

.4063

.4896

.5729

.6563

.7396

.8229

.9063

.9896

15/16"

.0781

.1615

.2448

.3281

.4115

.4948

.5781

.6615

.7748

.8281

.9115

.9948


Anchor: #i1029661Table 1-2: Decimals of an inch for each 1/16 of an inch

Fraction

Decimal

Fraction

Decimal

Fraction

Decimal

Fraction

Decimal

1/16”

.0625”

5/16”

.3125”

9/16”

.5625”

13/16”

.8125”

1/8”

.1250”

3/8”

.3750”

5/8”

.6250”

7/8”

.8750”

3/16”

.1875”

.1875”

.4375”

11/16”

.6875”

15/16”

.9375”

1/4”

.2500”

.2500”

.5000”

3/4”

.7500”

1”

1.000”


Anchor: #i1012599Table 1-3: Detailing Tolerances

Detail

Shown to Nearest

All framing and forming dimensions for steel and concrete components

0.001 ft. or

1/16 in.

Locations of columns, shafts, and piling

(Use 3" increments unless spacing depends on preset conditions)

0.001 ft.

Reinforcing steel dimensions

(Use nearest 1/2" or 1" where practical. Show to nearest 1" in Bar Table.)

1/4 in.

Reinforcing steel spacing

1/4 in.

Stations

0.01 ft.

Elevations

Layouts

0.01 ft.

Elevations

Everywhere else

0.001 ft.

Angles

1 sec.

Column H heights

1 ft.

Drilled shaft and pile lengths

1 ft.


Anchor: #i1012647Table 1-4: Material Weights

Material

Lbs / CF

Concrete, reinforced, stone

150

Concrete, plain, stone

144

Concrete, plain, slag