Product Description
The Simpson Strong-Tie ECCO4 End Column Cap is engineered to deliver strong, reliable column-to-beam connections in end-of-beam applications on top of steel members. Designed without legs, the ECCO4 allows for field-welded attachment directly to steel columns and beams, offering flexibility in the field without sacrificing structural integrity. The seat of the column cap extends beyond one side of the column, providing additional bearing surface area that helps distribute load from the beam and reinforce the connection. Built from heavy-duty uncoated 7-gauge steel and sized for nominal 4x or 3-1/2 in. beam widths, the ECCO4 is a dependable solution for demanding structural applications where earthquake or wind uplift loads are a design consideration.
Key Features
- Uplift loads increased for earthquake or wind loading
- Bolt spacing that meets NDS code requirements to ensure optimal performance
- Diamond holes to provide temporary fastening
- For nominal 4x or 3-1/2 in. beam width
- Cap height of 4 in.
- Made from uncoated 7-gauge steel
- Legless design enables field-welded attachment to steel columns and beams
- Extended seat provides additional bearing surface area beyond one side of the column for improved load distribution
Specifications
- Manufacturer Part Number (MPN): ECCO4
- Member Size: 4x, 3-1/2 in.
- Cap Height: 4 in.
- Gauge: 7-gauge steel
- Finish: Uncoated Steel
- Coating: None
- Installation Fastener: (1) 5/8 in. diameter machine bolt
- Country of Origin: United States
Approved Applications
- End-of-beam column-to-beam connections on top of steel members
- Field-welded attachment to steel columns and beams
- Structural connections requiring increased uplift load resistance for earthquake or wind loading
- Applications requiring NDS code-compliant bolt spacing
- Connections involving nominal 4x or 3-1/2 in. width beams
Installation
- Install with (1) 5/8 in. diameter machine bolt
- Use all specified fasteners
- Bolt holes shall be a minimum of 1/32" to a maximum of 1/16" larger than the bolt diameter (per 2018 NDS, section 12.1.3.2); bolt holes should be drilled from one side all the way through the beam to maintain hole tolerances
- Contact engineered wood manufacturers for connections involving engineered wood products
- Contact us for Configurable Options and Special orders
- For special, custom, or rough-cut lumber sizes, provide dimensions.
- ECCO may be ordered for field welding to pipe or other columns. Weld by designer.
Frequently Asked Questions
Q: What beam size is the ECCO4 designed for?
A: The ECCO4 is designed for nominal 4x or 3-1/2 in. width beams.
Q: What is the cap height of the ECCO4?
A: The ECCO4 has a cap height of 4 in.
Q: What fastener is required to install the ECCO4?
A: Installation requires (1
Frequently Asked Questions
- What beam size is the ECCO4 designed to fit?
- The ECCO4 is designed for nominal 4x or 3-1/2 in. beam widths, with a cap height of 4 in.
- How is the ECCO4 attached to steel columns and beams?
- The ECCO4 features a legless design that enables field-welded attachment directly to steel columns and beams. Once in place, it is installed using one 5/8 in. diameter machine bolt.
- What is the ECCO4 made of, and does it have a protective coating?
- The ECCO4 is made from 7-gauge steel with no coating or finish applied. It is uncoated steel, so users should consider their environment when determining if additional corrosion protection is needed.
- What makes the ECCO4 suitable for earthquake or wind loading applications?
- The ECCO4 is engineered with increased uplift load capacity for earthquake or wind loading conditions. Its bolt spacing meets NDS code requirements for optimal performance, and the extended seat provides additional bearing surface area beyond one side of the column to help distribute load from the beam and reinforce the connection.
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