How shall bracing be joined in scaffolding?

The joining of bracing in scaffolding is crucial for ensuring stability and safety. The recommended method of 'lapping or splicing' braces provides a secure connection that can withstand the forces exerted on the scaffold structure. When braces are lapped or spliced, they can distribute loads more evenly and are less likely to fail under pressure. This technique helps ensure the integrity of the entire scaffolding system and prevents potential accidents caused by weak or improper connections.

Using only a single weld would not provide the same level of strength, as it might lead to a point of failure should that weld be compromised. Likewise, relying solely on screws does not allow for the same interlocking strength that lapping or splicing provides. The suggestion of using duct tape is inappropriate, as it does not offer the necessary strength and stability required for scaffolding, leading to unsafe conditions. Therefore, lapping or splicing is the most effective and safe approach to join bracing in scaffolding systems.