Your encyclopedia of terms used in the industrial flooring industry.

Bursting Shear

Summary

Bursting Shear - is a mode of failure at a joint where the shear capacity of the concrete around the joint’s load transfer mechanism is exceeded.

Technical Information

Bursting Shear

Bursting shear failure occurs when the load transfer mechanism across a joint (usually a dowel) bursts out of the concrete it is set in, meaning that it will no longer transfer loads across the joint.

When load transfer is lost, the panels can move vertically in relation to each other, leaving the higher arris exposed to damage from MHE and rendering the floor un-serviceable.

This mode of failure is not particularly common however the chance of it happening is increased by improper compaction of the concrete around the dowel.

Related Definitions

Spalling , Isolation Joints , Sawn Restrained Movement Joints , Aggregate Interlock , Honeycombing

Resources

BS EN 1992-2
The Concrete Society: Technical Report 34; 6.5.3.

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The CoGri Group, a leading international specialist in concrete flooring, with offices on every continent throughout the world

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