Bolt spacing and edge distances.xls

The minimum and maximum fastener spacing, end distances, and edge distances for steel plates are typically determined based on industry standards and design codes. The specific values may vary depending on the application, material specifications, and loading conditions. Here are some general guidelines to consider:

1. Minimum Fastener Spacing: The minimum fastener spacing ensures sufficient load transfer and avoids overstressing of the plate. It is typically specified to prevent tearing or failure of the plate between fasteners. The minimum spacing is often determined based on the diameter or width of the fastener and can be found in design codes or engineering handbooks. For example, a common rule of thumb is to have a minimum spacing of three times the fastener diameter.

2. Maximum Fastener Spacing: The maximum fastener spacing is determined based on the applied load and the plate's resistance to deformation. Larger spacing can result in higher plate deformation and reduced load transfer capacity. The maximum spacing is typically specified to ensure adequate structural performance and is also influenced by industry standards and design codes.

3. End Distance: The end distance refers to the distance between the edge of the plate and the first row of fasteners. The end distance is important to avoid plate edge tearing or failure due to stress concentration. The minimum end distance is typically specified to prevent such failure modes and can be found in design codes or engineering guidelines. It is often recommended to have a minimum end distance of at least 1.5 times the plate thickness.

4. Edge Distance: The edge distance is the distance between the fastener's centerline and the nearest edge of the plate. Adequate edge distance is necessary to prevent plate edge tearing or failure due to stress concentration. The minimum edge distance is determined based on industry standards and design codes and can be found in relevant resources. Typically, a minimum edge distance of three times the fastener diameter or two times the fastener's outermost thread is recommended.

It is important to consult the appropriate design codes, standards, or engineering resources specific to your application to obtain accurate and up-to-date values for minimum and maximum fastener spacing, end distances, and edge distances for steel plates. These values may vary depending on factors such as plate thickness, fastener type, material properties, and load conditions.

Calculation Reference
Steel Designers Manual