Expansion shell anchors for use in solid base materials · top of the anchor — helping you see more clearly when proper ... anchor design – sets with 40% fewer hammer hits •

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Simpson Strong-Tie® Anchoring and Fastening Systems for Concrete and Masonry

Drop-In Internally Threaded Anchor (DIAB)

Expansion shell anchors for use in solid base materialsSimpson Strong-Tie introduces a new, redesigned Drop-In Anchor

(DIAB) that provides easier installation into base materials.

Improved geometry in the preassembled expansion plug improves

setting capability so the anchor installs with 40% fewer hammer

strikes than previous versions. These displacement-controlled

expansion anchors are easily set by driving the plug toward the

bottom of the anchor using either the hand- or power-setting

tools. DIAB anchors feature a positive-set marking indicator at the

top of the anchor — helping you see more clearly when proper

installation has taken place.

Use a Simpson Strong-Tie fixed-depth stop bit to take the

guesswork out of drilling to the correct depth. The fluted design of

the tip draws debris away from the hole during drilling, allowing for

a cleaner installation.

Key features

• New design offers easier installation then previous drop-in

anchor design – sets with 40% fewer hammer hits

• Positive-set marking system indicates when anchor is

properly set

• Lipped drop-in version available for flush installation

• Hand- and power-setting tools available for fast, easy and

economical installation

• Fixed-depth stop bit helps you drill to the correct depth

every time

Material: Carbon steel

Coating: Zinc plated

Drop-In Lipped Drop-In

Positive set indicator.

Anchor being set with hand setting tool.

Anchor being set with SDS setting tool.

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Drop-In Anchor

Rod Size (in.)

Model No.

Drill Bit Dia. (in.)

Bolt Threads (per in.)

Body Length

(in.)

Thread Length

(in.)

Quantity

Box Carton

4 DIAB25 8 20 1 8 100 500

8 DIAB37 2 16 1 9⁄16 8 50 250

2 DIAB50 8 13 2 4 50 200

8 DIAB62 8 11 2 2 1 25 100

4 DIAB75 1 10 3 8 1 4 20 80

Drop-In Anchor Hand Setting Tool

Model No. For Use With Box Quantity

DIABST25 DIAB25, DIABL25 10



DIABST62 DIAB62 5

DIABST75 DIAB75 5

1. Setting tools sold separately, Tools may be ordered by the piece.

Lipped Drop-In Anchor

Rod Size (in.)

Model No.



Body Length

(in.)

Thread Length

(in.)

Quantity

Box Carton

4 DIABL25 8 20 1 8 100 500

8 DIABL37 2 16 1 9⁄16 8 50 250

2 DIABL50 8 13 2 4 50 200

Power Setting Tool

Hand Setting Tool

Fixed-Depth Drill Bit

Drop-In

Lipped Drop-In

Drop-In Anchor Power Setting Tool

Model No. For Use With Box Quantity

DIABST25-SDS DIAB25, DIABL25 10



Fixed-Depth Drill Bits

Model No Drill Bit Diameter (in.) Drill Depth (In.) For Use With

MDPL037DIA 8 1 1⁄16 DIAB25, DIABL25



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DIAB SDS Installation

Caution: Oversized holes will reduce the anchors load capacity

1. Drill a hole in the base material using the appropriate diameter

carbide drill bit or fixed depth drill bit as specified in the table.

Drill the hole to the specified embedment. For fixed depth bits

drill the hole until the shoulder of the bit contacts the surface of

the base material. Then blow the hole clean of dust and debris

using compressed air. Overhead installations need not be blown

clean.

2. Insert the anchor into the hole. Tap with hammer until flush

against the surface.

3. Attach SDS Drop-In setting tool a drill. Drive expander plug

towards the bottom of the anchor using only hammer mode

until the shoulder of the setting tool makes contact with the top

of the anchor. When properly set 4 indentations will be visible

on the top of the anchor indicating full expansion.

4. Insert bolt or threaded rod. Minimum thread engagement

should be equal to the nominal diameter of the threaded insert.

DIAB Manual Installation

Caution: Oversized holes will reduce the anchors load capacity


carbide drill bit or fixed depth bit as specified in the table. Drill

the hole to the specified embedment. For fixed depth bits drill

the hole until the shoulder of the bit contacts the surface of

the base material. Then blow the hole clean of dust and debris


clean.

2. Insert the anchor into the hole. Tap with hammer until flush

against the surface.

3. Using the designated Drop-In setting tool, drive expander plug

towards the bottom of the anchor until the shoulder of the

setting tool makes contact with the top of the anchor. When

properly set 4 indentations will be visible on the top of the

anchor indicating full expansion.

4. Insert bolt or threaded rod. Minimum thread engagement

should be equal to the nominal diameter of the threaded insert.

!√!

!√!

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Drop-In (DIAB) Design Information — Concrete

DIAB Allowable Tension and Shear Loads in Normal-Weight Concrete

ModelNo.

Rod Size in.

(mm)

Drill Bit Dia. In.

EmbedDepth

In.(mm)

Critical Edge Dist.

In.(mm)

Critical Spacing

In.(mm)

f'c ≥ 2,500 psi (17.2 MPa) f'c ≥ 4,000 psi (27.6 MPa)

Tension Load Shear Load Tension Load Shear Load

Ultimate lb. (kN)

Allowablelb. (kN)

Ultimate lb. (kN)

Allowablelb. (kN)

Ultimate lb. (kN)

Allowablelb. (kN)

Ultimate lb. (kN)

Allowablelb. (kN)

DIAB25

DIABL254

(6.4)8

1 (25)

3 (76)

4 (102)

1,565 (7.0)

390 (1.7)

1,840 (8.2)

460 (2.0)

1,965 (8.7)

490 (2.2)

1,840 (8.2)

460 (2.0)

DIAB37

DIABL378

(9.5)2

1 9/16 (40)

4 2 (114)

6 (152)

2,950 (13.1)

740 (3.3)

4,775 (21.2)

1,195 (5.3)

3,910 (17.4)

980 (4.4)

4,775 (21.2)

1,195 (5.3)

DIAB50

DIABL502

(12.7)8

2 (51)

6 (152)

8 (203)

5,190 (23.1)

1,300 (5.8)

6,760 (30.1)

1,690 (7.5)

6,515 (29.0)

1,630 (7.3)

6,760 (30.1)

1,690 (7.5)

DIAB62 8

(15.9)8

2 2 (64)

7 2 (191)

10 (254)

7,010 (31.2)

1,755 (7.8)

12,190 (54.2)

3,050 (13.6)

9,060 (40.3)

2,265 (10.1)

12,190 (54.2)

3,050 (13.6)

DIAB75 4

(19.1)1

3 8 (79)

9 (229)

12 2 (318)

9,485 (42.2)

2,370 (10.5)

15,960 (71.0)

3,990 (17.7)

11,660 (51.9)

2,915 (13.0)

15,960 (71.0)

3,990 (17.7)

1. The allowable loads listed are based on a safety factor of 4.0.

2. Refer to allowable load-adjustment factors for edge distance and spacing on page 228.

3. Allowable loads may be linearly interpolated between concrete strength listed.

4. The minimum concrete thickness is 1 2 times the embedment depth.

5. Allowable loads may not be increased for short-term loading due to wind or seismic forces.

DIAB Allowable Tension and Shear Loads in Soffit of Sand-Lightweight Concrete over Metal Deck

ModelNo.

Rod Size in.

(mm)

Drill Bit Dia. In.

EmbedDepth

In.(mm)

Critical End Dist.6

In.(mm)

Critical Spacing

In.(mm)

f'c ≥ 3,000. psi (20.7 MPa)

Tension Load Shear Load

Ultimate lb. (kN)

Allowablelb. (kN)

Ultimate lb. (kN)

Allowablelb. (kN)

DIAB37

DIABL378

(9.5)2

1 9/16 (40)

4 2 (114)

6 (152)

2,895 (12.9)

725 (3.2)

3,530 (15.7)

885 (3.9)

DIAB50

DIABL502

(12.7)8

2 (51)

6 (152)

8 (203)

4,100 (18.2)

1,025 (4.6)

4,685 (20.8)

1,170 (5.2)




4. Anchors were installed in the center of the bottom flute of the steel deck.

5. Metal deck must be minimum 20-gauge thick with minimum yield strength of 33 ksi.

6. Critical end distance is defined as the distance from end of the slab in the direction of the flute.

Lightweight Concrete over Metal Deck

UpperFlute

3" Min.20 GaugeSteel Deck

Drop-inAnchor

Min. 41⁄2"

71⁄2"41⁄2"

61⁄4"6 4"

4 2" 7 2"

3"

Min. 4 2"

Upper Flute

Drop-In Anchor

Min. 20-gauge steel deck

*IBC

*IBC

* See page 12 for an explanation of the load table icons.

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Edge Distance Tension (fc) Edge Distance Shear (fc)EdgeDist.cact(in.)

Size 4 8 2 8 4 EdgeDist.cact(in.)

Size 4 8 2 8 4

ccr 3 4 2 6 7 2 9 ccr 3 4 2 6 7 2 9cmin 1 4 2 8 3 2 4 8 5 4 cmin 1 4 2 8 3 2 4 8 5 4fcmin 0.77 0.77 0.77 0.77 0.77 fcmin 0.54 0.54 0.64 0.64 0.64

1 4 0.77 1 4 0.542 0.82 2 0.63

2 2 0.91 2 2 0.822 8 0.93 0.77 2 8 0.86 0.543 1.00 0.82 3 1.00 0.63

3 2 0.88 0.77 3 2 0.75 0.644 0.94 0.82 4 0.88 0.71

4 8 0.98 0.85 0.77 4 8 0.97 0.77 0.644 2 1.00 0.86 0.78 4 2 1.00 0.78 0.655 0.91 0.82 5 0.86 0.71

5 4 0.93 0.83 0.77 5 4 0.89 0.74 0.645 2 0.95 0.85 0.79 5 2 0.93 0.77 0.666 1.00 0.89 0.82 6 1.00 0.83 0.71

6 2 0.93 0.85 6 2 0.88 0.767 0.96 0.88 7 0.94 0.81

7 2 1.00 0.91 7 2 1.00 0.868 0.94 8 0.90

8 2 0.97 8 2 0.959 1.00 9 1.00

1. cact = actual edge distance at which anchor is installed (inches).

2. ccr = critical edge distance for 100% load (inches).

3. cmin = minimum edge distance for reduced load (inches).

4. fc = adjustment factor for allowable load at actual edge distance.

5. fccr = adjustment factor for allowable load at critical edge distance. fccr is always = 1.00.

6. fcmin = adjustment factor for allowable load at minimum edge distance.

7. fc = fcmin + [(1 – fcmin) (cact – cmin) / (ccr – cmin)].








Spacing Tension (fs) Spacing Shear (fs)

Spacingsact(in.)

Size 4 8 2 8 4 Spacingsact(in.)

Size 4 8 2 8 4

scr 4 6 8 10 12 2 scr 4 6 8 10 12 2smin 1 2 2 4 3 3 4 4 4 smin 1 2 2 4 3 3 4 4 4fsmin 0.72 0.72 0.80 0.80 0.80 fsmin 1.00 1.00 1.00 1.00 1.00

1 2 0.72 1 2 1.002 0.78 2 1.00

2 4 0.80 0.72 2 4 1.00 1.002 2 0.83 0.74 2 2 1.00 1.003 0.89 0.78 0.80 3 1.00 1.00 1.00

3 2 0.94 0.81 0.82 3 2 1.00 1.00 1.003 4 0.97 0.83 0.83 0.80 3 4 1.00 1.00 1.00 1.004 1.00 0.85 0.84 0.81 4 1.00 1.00 1.00 1.00

4 2 0.89 0.86 0.82 4 2 1.00 1.00 1.004 4 0.91 0.87 0.83 0.80 4 4 1.00 1.00 1.00 1.005 0.93 0.88 0.84 0.81 5 1.00 1.00 1.00 1.00

5 2 0.96 0.90 0.86 0.82 5 2 1.00 1.00 1.00 1.006 1.00 0.92 0.87 0.83 6 1.00 1.00 1.00 1.00

6 2 0.94 0.89 0.85 6 2 1.00 1.00 1.007 0.96 0.90 0.86 7 1.00 1.00 1.00

7 2 0.98 0.92 0.87 7 2 1.00 1.00 1.008 1.00 0.94 0.88 8 1.00 1.00 1.00

8 2 0.95 0.90 8 2 1.00 1.009 0.97 0.91 9 1.00 1.00

9 2 0.98 0.92 9 2 1.00 1.0010 1.00 0.94 10 1.00 1.00

10 2 0.95 10 2 1.0011 0.96 11 1.00

11 2 0.97 11 2 1.0012 0.99 12 1.00

12 2 1.00 12 2 1.00

1. sact = actual spacing distance at which anchor is installed (inches).

2. scr = critical spacing distance for 100% load (inches).

3. smin = minimum spacing distance for reduced load (inches).

4. fs = adjustment factor for allowable load at actual spacing distance.

5. fscr = adjustment factor for allowable load at critical spacing distance. fscr is always = 1.00.

6. fsmin = adjustment factor for allowable load at minimum spacing distance.

7. fs = fsmin + [(1 – fsmin) (sact – smin) / (scr – smin)].

1. sact = actual spacing distance at which anchor is installed (inches).







Drop-In (DIAB) Design Information — Concrete

How to use these charts:1. The following tables are for reduced edge distance and spacing.

2. Locate the anchor size to be used for either a tension and/or a shear load application.

3. Locate the edge distance (cact) or spacing (sact) at which the anchor is to be installed.

4. The load adjustment factor (fc or fs) is the intersection of the row and column.

5. Multiply the allowable load by the applicable load adjustment factor.

6. Reduction factors for multiple edges or spacing are multiplied together.

Allowable Load-Adjustment Factors for Drop-In Anchor (DIAB) in Normal-Weight Concrete and Sand-Lightweight Concrete over Metal Deck: Edge Distance and Spacing, Tension and Shear Loads

IBC*

IBC*

IBC*

IBC*


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Drop-In Internally Threaded Anchor (DIA)

Drop-in anchors are internally threaded drop-in expansion anchors

for use in flush-mount applications in solid base materials. Available

in stainless steel (DIA), short (DIAS) or coil-thread (DIAC) versions.

Minimum thread engagement should be equal to the nominal

diameter of the threaded insert.

Features

• Lipped edge (DIAS) eliminates need for precisely drilled hole depth

• Available in coil-thread version for ½" and ¾" coil-threaded rod

• Short length (DIAS) enables shallow embedment to help avoid

drilling into rebar or pre-stressed/post-tensioned cables

• Short Drop-In anchors include a setting tool compatible with the

anchor to ensure consistent installation

Material: Carbon and stainless steel

Coating: Carbon steel; zinc plated

Codes: Drop-in: DOT; Factory Mutual 3017082; Underwriters

Laboratories File Ex3605. Meets requirements of Federal

Specifications A-A-55614, Type I.

Short drop-in: Factory Mutual 3017082 and Underwriters

Laboratories File Ex3605.

Caution: The load tables list values based upon results from the most recent testing and may not reflect those in current code reports. Where code jurisdictions apply, consult the current reports for applicable load values.

Installation


carbide drill bit as specified in the table. Drill the hole to the specified

embedment depth plus 8" for flush mounting. Blow the hole clean


clean.

2. Insert designated anchor into hole. Tap with hammer until flush

against surface.

3. Using the designated drop-in setting tool, drive expander plug

toward the bottom of the anchor until shoulder of setting tool makes

contact with the top of the anchor.

4. Minimum thread engagement should be equal to the nominal

diameter of the threaded insert.

Caution: Oversized holes will make it difficult to set the anchor and will reduce the anchor's load capacity.

Drop-In

Stainless

Steel

Coil-Thread

Drop-In

Short

Drop-In

1/8" min.

Installation Sequence

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Drop-In Anchor Product Data – Stainless Steel

Rod Size (in.)

Type 303 /304 Stainless Model No.

Type 316 Stainless Model No.



Body Length

(in.)

Thread Length

(in.)

Quantity

Box Carton

4 DIA25SS DIA256SS 8 20 1 8 100 500

8 DIA37SS DIA376SS 2 16 1 9⁄16 8 50 250

2 DIA50SS DIA506SS 8 13 2 4 50 200

8 DIA62SS — 8 11 2 2 1 25 100

4 DIA75SS — 1 10 3 8 1 4 20 80

Drop-In Internally Threaded Anchor (DIA)

Short Drop-In Anchor Product Data

Rod Size (in.)

Model No.

Drill Bit Diameter

(in.)


Body Length

(in.)

Thread Length

(in.)

Quantity

Box Carton

8 DIA37S 1 2 16 4 4 100 500

2 DIA50S 1 8 13 1 5⁄16 50 200

1. A dedicated setting tool is included with each box of DIA37S and DIA50S.

Coil-Thread Drop-In Anchor Product Data

Rod Size (in.)

Carbon Steel

Model No.

Drill Bit Diameter

(in.)


Body Length

(in.)

Thread Length

(in.)

Quantity

Box Ctn.

2 DIA50C18 6 2 4 50 200

4 DIA75C1 1 5 3 8 1 4 20 80

1. DIA50C and DIA75C accept 2" and 4" coil-thread rod, respectively.

Drop-In Anchor Setting Tool Product Data

Model No.

For Use With

Box Qty.

DIAST25 DIA25SS, DIA256SS 10

DIAST37 DIA37SS, DIA376SS 10

DIAST50 DIA50SS, DIA506SS, DIA50C 10

DIAST62 DIA62SS 5

DIAST75 DIA75SS, DIA75C 5

1. Setting tools sold separately except for DIA37S and DIA50S.

2. Setting tools for use with carbon and stainless-steel drop-in anchors.

3. Setting tools may be ordered by the piece.

Drop-In Anchor (DIA) Power Setting Tool

Model No.

For Use With

Box Qty.

DIAST37S-SDS DIA37S 10

DIAST50S-SDS DIA50S 10

Also sold by the piece

Drop-In Anchor Setting Tool

Stop Bit

Drop-In Anchor Stop Bit

Model No.Drill Bit Diameter

(in.)Drop-In Anchor (in.) Drill Depth (in.)

MDPL037DIA 8 4 1 1⁄16

MDPL050DIA 2 8 13⁄16

MDPL062DIA 2 2 1 11⁄16

MDPL050DIAS 8 8 1 1⁄16

MDPL062DIAS 8 2 2 1⁄16

Power Setting Tool

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Drop-In (DIA) Design Information — Concrete

Material Specifications

Anchor Component

Component Material

Zinc Plated Carbon Steel

Type 303 /304 Stainless Steel

Type 316 Stainless Steel

Anchor Body

Meets minimum 70,000 psi tensile

AISI 303. Meets chemical requirements

of ASTM A582Type 316

Expander Plug

Meets minimum 50,000 psi tensile

AISI 303 Type 316

Thread UNC/Coil-thread UNC UNC

Note: DIA37S, DIA50C and DIA75C are not available in stainless steel.

Allowable Tension Loads for Drop-In (Stainless Steel) and Coil-Thread Drop-In (Carbon Steel) Anchors in Normal-Weight Concrete

Rod Size in.

(mm)


Embed. Depth

in. (mm)

Critical Edge Dist. in.

(mm)

Critical Spacing

in. (mm)

Tension Load

f'c ≥ 2,000 psi (13.8 MPa) Concrete



Ultimate lb. (kN)

Std. Dev. lb. (kN)

Allowable lb. (kN)

Allowable lb. (kN)

Ultimate lb. (kN)

Std. Dev. lb. (kN)

Allowable lb. (kN)

4 (6.4)

81

(25)3

(76)4

(102)1,400 (6.2)

201 (0.9)

350 (1.6)

405 (1.8)

1,840 (8.2)

451 (2.0)

460 (2.0)

8 (9.5)

21 9/16 (40)

4 2 (114)

6 (152)

2,400 (10.7)

251 (1.1)

600 (2.7)

795 (3.5)

3,960 (17.6)

367 (1.6)

990 (4.4)

2 (12.7)

82

(51)6

(152)8

(203)3,320 (14.8)

372 (1.7)

830 (3.7)

1,178 (5.2)

6,100 (27.1)

422 (1.9)

1,525 (6.8)

8 (15.9)

82 2 (64)

7 2 (191)

10 (254)

5,040 (22.4)

689 (3.1)

1,260 (5.6)

1,715 (7.6)

8,680 (38.6)

971 (4.3)

2,170 (9.7)

4 (19.1)

13 8 (79)

9 (229)

12 2 (318)

8,160 (36.3)

961 (4.3)

2,040 (9.1)

2,365 (10.5)

10,760 (47.9)

1,696 (7.5)

2,690 (12.0)



3. Allowable loads may be linearly interpolated between concrete strengths listed.


Allowable Shear Loads for Drop-In (Stainless Steel) and Coil-Thread Drop-In (Carbon Steel) Anchors in Normal-Weight Concrete

Rod Size in.

(mm)

Drill Bit Dia. in.

Embed. Depth

in. (mm)

Critical Edge Dist. in.

(mm)

Critical Spacing

in. (mm)

Shear Load




Ultimate lb. (kN)

Std. Dev. lb. (kN)

Allowable lb. (kN)

Allowable lb. (kN)

Allowable lb. (kN)

4 (6.4)

81

(25)3 2 (89)

4 (102)

1,960 (8.7)

178 (0.8)

490 (2.2)

490 (2.2)

490 (2.2)

8 (9.5)

21 9/16 (40)

5 4 (133)

6 (152)

3,240 (14.4)

351 (1.6)

810 (3.6)

925 (4.1)

1,040 (4.6)

2 (12.7)

82

(51)7

(178)8

(203)7,000 (31.1)

562 (2.5)

1,750 (7.8)

1,750 (7.8)

1,750 (7.8)

8 (15.9)

82 2 (64)

8 4 (222)

10 (254)

11,080 (49.3)

923 (4.1)

2,770 (12.3)

2,770 (12.3)

2,770 (12.3)

4 (19.1)

13 8 (79)

10 2 (267)

12 2 (318)

13,800 (61.4)

1,781 (7.9)

3,450 (15.3)

3,725 (16.6)

4,000 (17.8)



3. Allowable loads may be linearly interpolated between concrete strengths listed.



*IBC

*IBC

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Allowable Tension and Shear Loads for 8" and 2" Short Drop-In Anchor in Sand-Lightweight Concrete Fill over Metal Deck

ModelNo.

RodSize(in.)

Drill BitDia.(in.)

Emb.Depth(in.)

TensionCritical

EndDistance

(in.)

ShearCritical

EndDistance

(in.)

Critical Spacing

(in.)

Install through the Lower Flute or Upper Flute of Metal Deck, f'c ≥ 3,000 psi Concrete (20.7 MPa)


Ultimate(lb.)

Allowable(lb.)

Ultimate(lb.)

Allowable(lb.)

DIA37S 8 2 4 6 7 8 1,344 335 1,649 410

DIA50S 2 8 1 8 9 8 10 8 1,711 430 2,070 515



3. Refer to allowable load-adjustment factors for edge distances and spacing on page 235.

4. Anchors were installed with a 1" offset from the centerline of the flute.

Upper

flute

3" Min.20 gaugesteel deck

Min. 41⁄2"

71⁄2"41⁄2"

61⁄4"

Drop-in anchor 1" offset – see footnote #4

on bottom table

Lightweight Concrete over Metal Deck

6 4"

3"

4 2" 7 2"

Min. 4 2"

Upper Flute

Min. 20-gauge

steel deck

Drop-in anchor 1" offset — see footnote #4

on table

*IBC

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Allowable Tension and Shear Loads for 8" and 2" Short Drop-In Anchor in Normal-Weight Concrete

Model No.

RodSize(in.)

Drill BitDia.(in.)

Emb.Depth(in.)

TensionCriticalEdge

Distance(in.)

ShearCriticalEdge

Distance(in.)

Critical Spacing

(in.)

Normal-Weight Concrete, f'c ≥ 2500 psi Normal-Weight Concrete, f'c ≥ 4,000 psi

Tension Load Shear Load Tension Load Shear Load

Ultimate(lb.)

Allowable(lb.)

Ultimate(lb.)

Allowable(lb.)

Ultimate(lb.)

Allowable(lb.)

Ultimate(lb.)

Allowable(lb.)

DIA37S 8 2 4 4 2 5 4 3 1,500 375 2,274 570 2,170 540 3,482 870

DIA50S 2 8 1 6 7 4 2,039 510 3,224 805 3,420 855 5,173 1,295




4. Allowable loads may be linearly interpolated between concrete strengths.


Allowable Tension and Shear Loads for 8" and 2" Short Drop-In Anchor in Hollow-Core Concrete Panel

ModelNo.

RodSize(in.)

Drill BitDia.(in.)

Emb.Depth(in.)

TensionCriticalEdge

Distance(in.)

ShearCriticalEdge

Distance(in.)

Critical Spacing

(in.)

Hollow Core Concrete Panel, f'c ≥ 4,000 psi


Ultimate(lb.)

Allowable(lb.)

Ultimate(lb.)

Allowable(lb.)

DIA37S 8 2 4 4 2 5 4 3 1,860 465 3,308 825

DIA50S 2 8 1 6 7 4 2,650 660 4,950 1,235




4. Allowable loads may be linearly interpolated between concrete strengths.

Hollow-Core Concrete Panel

(Anchor can be installed below web or hollow core)

*IBC

*IBC


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Allowable Load-Adjustment Factors for Drop-In (Stainless Steel), Coil Thread (Carbon Steel) and Short Drop-In Anchors in Normal-Weight Concrete: Edge Distance and Spacing, Tension and Shear Loads

How to use these charts:

1. The following tables are for reduced edge distance and spacing.

2. Locate the anchor size to be used for either a tension and/or shear

load application.

3. Locate the edge distance (cact) or spacing (sact) at which the anchor

is to be installed.

4. The load adjustment factor (fc or fs) is the intersection of the row

and column.


6. Reduction factors for multiple edges or spacing are

multiplied together.

Edge Distance Tension (fc)

Edge Dist. cact (in.)

Size 4 8 2 8 4

ccr 3 4 2 6 7 2 9

cmin 1 4 2 8 3 2 4 8 5 4

fcmin 0.65 0.65 0.65 0.65 0.65

1 4 0.652 0.72

2 2 0.862 8 0.90 0.653 1.00 0.72

3 2 0.81 0.654 0.91 0.72

4 8 0.98 0.77 0.654 2 1.00 0.79 0.665 0.86 0.72

5 4 0.90 0.75 0.655 2 0.93 0.78 0.676 1.00 0.83 0.72

6 2 0.89 0.777 0.94 0.81

7 2 1.00 0.868 0.91

8 2 0.959 1.00

See notes below.

Spacing Tension and Shear (fs)

sact (in.)

Size 4 8 9 8 2 10 2 8 4

E 1 4 1 2 1 2 2 2 3 8

Scr 4 3 6 4 8 10 12 2

Smin 2 1 2 3 2 4 5 6 4

fsmin 0.50 0.50 0.50 0.50 0.50 0.50 0.50

1 2 0.50

2 0.50 0.67 0.50

2 2 0.63 0.83 0.63

3 0.75 1.00 0.50 0.75

3 2 0.88 0.58 0.88

4 1.00 0.67 1.00 0.50

4 2 0.75 0.56

5 0.83 0.63 0.50

5 2 0.92 0.69 0.55

6 1.00 0.75 0.60

6 4 0.78 0.63 0.50

7 0.88 0.70 0.56

8 1.00 0.80 0.64

9 0.90 0.72

10 1.00 0.80

11 0.88

12 0.96

12 2 1.00

1. E = Embedment depth (inches).

2. sact = actual spacing distance at which anchors are installed (inches).







9. 8" short drop-in (DIA37S).

10. ½" short Drop-in (DIA50S)

Edge Distance Shear (fc)


Size 4 8 2 8 4

ccr 3 2 5 4 7 8 4 10 2

cmin 1 4 2 8 3 2 4 8 5 4

fcmin 0.45 0.45 0.45 0.45 0.45

1 4 0.45

2 0.532 2 0.692 8 0.73 0.453 0.84 0.53

3 2 1.00 0.63 0.454 0.74 0.53

4 8 0.82 0.59 0.454 2 0.84 0.61 0.475 0.95 0.69 0.53

5 4 1.00 0.73 0.56 0.455 2 0.76 0.59 0.486 0.84 0.65 0.53

6 2 0.92 0.72 0.587 1.00 0.78 0.63

7 2 0.84 0.698 0.91 0.74

8 2 0.97 0.798 4 1.00 0.829 0.84

9 2 0.9010 0.95

10 2 1.00





5. fccr= adjustment factor for allowable load at critical edge distance. fccr is always = 1.00.



*IBC

*IBC

*IBC

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Allowable Load-Adjustment Factors for Short Drop-in Anchors in Sand-Lightweight Concrete over Metal Deck: Edge Distance and Spacing, Tension and Shear Loads

How to use these charts:

1. The following tables are for reduced edge distance and spacing.

2. Locate the anchor size to be used for either a tension and/or shear load

application.

3. Locate the edge distance (cact) or spacing (sact) at which the anchor

is to be installed.

4. The load adjustment factor (fc or fs) is the intersection of the

row and column.


6. Reduction factors for multiple edges or spacing are multiplied

together.

Edge Distance Tension (fc)


Size 8 2

ccr 6 8

cmin 3 2 4 4

fcmin 0.65 0.65

3 2 0.65

4 0.72

4 2 0.79

4 4 0.83 0.65

5 0.86 0.68

5 2 0.93 0.73

6 1.00 0.78

6 2 0.84

7 0.89

7 2 0.95

8 1.00

See notes below.

Spacing Tension and Shear (fs)

sact (in.)

Size 8 2

scr 8 10 8

smin 4 5 4

fsmin 0.50 0.50

4 0.50

4 2 0.56

5 0.63

5 4 0.66 0.50

6 0.75 0.57

6 2 0.81 0.62

7 0.88 0.66

7 2 0.94 0.71

8 1.00 0.76

8 2 0.80

9 0.85

9 2 0.90

10 0.94

10 8 1.00

1. sact = actual spacing distance at which anchors are installed (inches).







Edge Distance Shear (fc)


Size 8 2

ccr 7 9 8

cmin 3 2 4 4

fcmin 0.45 0.45

3 2 0.45

4 0.53

4 2 0.61

4 4 0.65 0.45

5 0.69 0.48

5 2 0.76 0.54

6 0.84 0.60

6 2 0.92 0.66

7 1.00 0.72

7 2 0.78

8 0.84

8 2 0.90

9 0.96

9 8 1.00








*IBC

*IBC

*IBC

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