Tuesday, June 2, 2009

Lapping reinforcement in concrete

All forms of steel reinforcement must be lapped in accordance with AS 2870 requirements. The overlaps should be held together with tie wire.
Trench mesh laps; Where trench maps are joined end to end, they need to be overlapped by at least 500 mm. Where they overlap at T or L intersections the overlap should be the width of the trench mesh

Reinforcing bar lap; Reinforcing bar laps need to be overlapped by at least 500 mm


Square mesh lap; Square mesh lap has to be overlapped by at least 225 mm

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  7. This blog post provides a clear and thorough explanation of lapping reinforcement in concrete. I appreciate the breakdown of how lapping is used to maintain structural continuity in concrete, particularly in cases where reinforcing bars are necessary for stability. Your explanations on the importance of bar length and proper overlapping techniques really highlight the significance of this practice in ensuring safety and durability in construction.

    I'm curious, as I work in gutter installation, if you see any common issues when adding or replacing gutters on concrete buildings where reinforced concrete plays a role in structural integrity? For instance, are there specific considerations with concrete lapping that could impact how gutters are mounted, especially with certain anchoring methods? I'd love to hear your perspective on that intersection between reinforcement techniques and exterior installations like gutters.

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