Simpson Strong-Tie Wood Construction Connectors

Simpson Strong-Tie ® Wood Construction Connectors

How We Determine Allowable Loads

General

Information

Cast-in-place concrete products are tested in accordance with ICC-ES AC398 — Cast-in-Place, Cold-Formed Steel Connectors in Concrete for Light-Frame Construction or AC399 — Cast-in-Place Proprietary Bolts in Concrete for Light-Frame Construction. Threaded fasteners are evaluated per AC233 — Alternate Dowel-Type Threaded Fasteners. Where a test standard is unavailable, testing is conducted per sound engineering principles. Some tests include only portions of a product, such as purlin anchor tests, wherein only the embedded hook is tested, not the nailed or bolted section of the strap, which is calculated. Testing to determine allowable loads in this catalog is not done on connection systems in buildings. Testing is conducted under the supervision of an independent laboratory. For detailed information regarding how Simpson Strong-Tie tests specific products, contact Simpson Strong-Tie.

Allowable loads in this catalog are determined by calculations and test criteria established by industry, such as ICC-ES Acceptance Criteria, IAPMO UES Evaluation Criteria and ASTM test standards. Connectors are typically evaluated in accordance with ICC-ES AC13 — Acceptance Criteria for Joist Hangers and Similar Devices. Evaluation is based on a minimum of three static load tests in wood assemblies. The published allowable load is the lower of the tested ultimate with a safety factor of 3, load at 1⁄8 " deflection or the NDS fastener calculation limits. Holdowns and tension ties are tested in accordance with ICC-ES AC155 — Acceptance Criteria for Hold-Downs (Tie-Downs) Attached to Wood Members. Allowable loads are based on the lower of three static load tests with a safety factor, deflection limits or NDS fastener calculation limits. Static load tests include holdown testing on steel jigs and wood assembly tests.

Load Table Explanation

Allowable Design Loads: The maximum load that a connection is designed to provide. There may be multiple design loads acting in different directions (up, down, lateral, perpendicular, etc.) imposed on a connection. Uplift Down Lateral

Hanger Load Table Explanation, see p. 94.

Model No.: This is the Simpson Strong-Tie product name.

Nails: This shows the fastener quantity and type

required to achieve the table loads.

Allowable Loads

Dimensions (in.)

Code Ref.: See p. 11 for the Code Reference Key Chart, to determine which code reports include this product.

Model No.

Nails (in.)

Code Ref.

F 2

Uncracked Cracked Download F 1

Uplift (160)

Uplift (160)

W L H

(100)

(160) (160)

Wind and Seismic Design Category A&B

EPB44A 3 9/16

3 2 3/8

(8) 0.162 x 3 1/2

1,075

755

2,670 695 795

Wind or Seismic: Some cast-in-place concrete products have different load ratings based on wind or seismic design category.

IBC, FL, LA

EPB44 3 9/16 3 1/4 2 5/16

(8) 0.162 x 3 1/2

995

695

3,465 850 965

EPB46 5 1/2 3 5/16

3 (12) 0.162 x 3 1/2

995

695

3,465 850 965

EPB66 5 1/2 5 1/2

3 (12) 0.162 x 3 1/2

995

695

3,465 850 965

Seismic Design Category C–F

EPB44A 3 9/16

3 2 3/8

(8) 0.162 x 3 1/2

940

660

2,670 695 795

IBC, FL, LA

EPB44 3 9/16 3 1/4 2 5/16

(8) 0.162 x 3 1/2

870

605

3,465 850 965

Product Drawing: Provides a graphic presentation of the product with dimensional information (often cross-referenced to the table).

EPB46 5 1/2 3 5/16

3 (12) 0.162 x 3 1/2

870

605

3,465 850 965

EPB66 5 1/2 5 1/2

3 (12) 0.162 x 3 1/2

870

605

3,465 850 965

Fasteners: Nail dimensions are listed diameter by length. See pp. 21–22 for other nail sizes and information.

C-C-2021 ©2021 SIMPSON STRONG-TIE COMPANY INC.

Dimensions W, L, H: This shows the product dimensions (width, length and height in this case) referenced in the product drawing.

Throughout this catalog a footnote will typically be provided indicating the required nail diameter and length. All installations should be designed only in accordance with the allowable load values set forth in this catalog.

All EPBs 4" min.

6" embed

ment

10