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| Mechanical Splicing |
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NANYA Mechanical Splices from NANYA BUILDTECH are a parallel
splicing system that assures a positive locking connection, providing
continuity and structural integrity to reinforced concrete construction.
NANYA spliced bars behave as continuous lengths of reinforcing steel
bars by providing “full strength” in tension, compression and stress
reversal applications. |
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Continuous reinforcement can be
achieved either through the use of one
continuous length of rebar or through
mechanical butt splicing.
Mechanical butt splices are mechanical
connections between two pieces of
reinforcing steel that enable the bars to
behave in a manner similar to
continuous lengths of reinforcing steel
bars. Mechanical splices join rebar
end-to-end, providing many of the
advantages of a continuous piece of
rebar.
Mechanical butt splices are more
reliable than lap splices because they
do not depend on concrete for load
transfer. Further, mechanical butt
splices are stronger than lap Splices
Mechanical butt splices provide
superior strength during load transfer.
Superior cyclic performance and
greater structural integrity during
manmade, seismic or other natural
events are other advantages of
mechanical butt splices.
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NANYA mechanical couplers
perform like a continuous
length of rebar regardless of
concrete condition. |
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| Lap Splicing |
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From the design perspective,
mechanical butt splices can be relied
upon to improve steel-to-concrete
ratios. When using laps, working with
small diameter reinforcing bars may
require the use of larger column
dimensions to accommodate a greater
quantity of bars. Using mechanical butt
splices allows the option of using
larger diameter rebar in a smaller
column, while minimizing congestion.
Efforts to evaluate the comparative
costs of using lap splicing and
mechanical butt splicing in concrete
construction show that the reputation of
butt splices for adding substantial cost
to a construction budget is unfounded |
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