The typical approach to a spreader bar design looks like this.
Spreader beam design example.
In summary whenever the force must travel along the beam bending stress occurs and that is what we would call a lifting beam.
This spreader beam also has a series of lugs on the bottom to attach to the product.
Design of adjustable spreader lifting beam of standard profile heb series geometry of lifting at the each end of the hollow pipe spreader beam solved using the equations of static equillibrium a strength design design for flexural bending stress selecting the section initially based on this.
In this article we will explore the design of a basic spreader beam and see what design checks are needed to establish the suitability of a spreader beam for particular lifting operation.
This example has an i beam down the center and a series of lugs welded on the top for attaching to the crane.
Spreader beams are universally applied gear which is widely used in various types of lifting operations onshore and offshore.
In this the beam is suspended from a sling connected part way along the beam rather than at the ends.
The forces acting on the children and the swing in this example are very similar to what occurs in a spreader.
As some of you may have guessed in this example the broom is the spreader beam.
Design 1 typical spreader bar design.
Custom applications have one of our engineers custom design a spreader beam for virtually any lift.
Alternatively the combination design previously referred to can be used.
Asme b30 20 bth 1.
There are a number of ways you can utilise our modular spreader beams for example.
It increases the a dimension and the forces in the beam are a combination of bending and.
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Spreader suspended by a sling often has the advantage over a lifting beam.