Steel Beam Bolted Splice Detail: A Comprehensive Guide

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Using steel beams in construction projects is a common practice in the modern world. Steel beams offer a variety of advantages, including ease of installation and strength to weight ratio. Steel beams are often used in constructions that require longer spans than wood or other materials can provide. Steel beams are also sometimes spliced together to extend their length. In this article we will discuss bolted splice details for steel beams and how to properly go about implementing them.

What Is a Bolted Splice Detail?

A bolted splice detail is a method of joining two steel beams together to extend the length of the beam. This is done by bolting the two beams together with steel plates and bolts. The two beams are connected at the ends with one or two steel plates and bolts. This allows for the beams to be joined together while still maintaining the strength of the original beam.

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What Are the Benefits of Using a Bolted Splice Detail?

Using a bolted splice detail offers a number of advantages when compared to other methods of joining steel beams. Bolted splices are easy to install and can be completed quickly. The process is also relatively inexpensive when compared to welding or other methods. Additionally, bolting offers a strong connection that is resistant to fatigue and corrosion. Bolted splices also allow for easier maintenance and repair since the bolts can be easily tightened or replaced if needed.

What Are the Drawbacks of a Bolted Splice Detail?

While there are a number of advantages to using a bolted splice detail, there are also a few drawbacks. The primary drawback is that bolted splices are not as strong as welded connections. Additionally, there is the potential for bolts to loosen over time which could reduce the strength of the joint. Lastly, bolts can corrode over time and need to be replaced periodically.

How to Properly Install a Bolted Splice Detail

When installing a bolted splice detail, it is important to follow all of the manufacturer’s instructions. The first step is to ensure that the two beams are properly aligned and that the bolts are the correct size for the beam. It is also important to use the proper grade of bolts and to ensure that the bolts are tightened to the manufacturer’s specifications. Once the bolts are tightened, it is important to check the joints regularly to ensure that they remain secure.


Steel beam bolted splice details are a great way to extend the length of steel beams in construction projects. They are easy to install, relatively inexpensive, and offer a strong connection that is resistant to fatigue and corrosion. However, it is important to ensure that the bolts are of the correct grade and are tightened to the manufacturer’s specifications. Regular inspection and maintenance of the bolts is also recommended to ensure that the joint remains secure.