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P r o d u c t D e s c r i p t i o n
Index
Introduction -Product
Description
Page 2
-Reinforcement Bar Coupler
-Coupler Splicing Sytem
-Feature
Page 3-4
Bartek “P” Parallel
direct rolling system
Page 5
Threading Types Page 7-8
Special Coupler
Types
Page 6
Standard readymade
systems &
Accessories
Page 9
Couplers Method of
Statement
Page 10-12
Bartek “P” Method of
Statement
Page 13
Hydraulic Press
Method of Statement
Page 12-15
All BARTEK SYSTEMS Couplers are produced
according to ISO9001
Rebar couplers can simplify the design and
construction of reinforced concrete and reduce
the amount of reinforcement required by
avoiding overlaps, this in turn could reduce
congestion within the concrete and avoid all its
related disadvantages.
BARTEK SYSTEMS Standard Couplers are
produced from Carbon Steel which have tensile
strength more than 600 MPa; for higher requirement of tensile strength BARTEK
SYSTEMS Super Couplers can be customized to
800 to 900 Mpa according to any project special
requirements.
Bartek systems is suitable for mechanical splices
with reinforcing bars made according to
DIN488:86, BS4449:1997, ASTM A615.
Bartek coupler complies with the following bldg.
codes & standards:
The Deutches Institüt für Normug in its standard
DIN 1045 (2001)
The British standards Institution, in its standard
BS 8110-1: 1997, section 3, chapter 3.12.8.
The Association Francaise de Normalisation
(AFNOR), in its standard NF A 35-020 (1999).
The American Concrete Institute (A.C.I.), in its
standard ACI 318 (Chapter 12: Development and
splices of reinforcement)
The International conference of Building Officials
(I.C.B.O.), in its Uniform Building Code (UBC),
Section 1912.
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Bartek coupler splicing system is designed for the
connection of steel rebars without torque wrench.
Fast and simple installation to promote productivity and
safety of the connection.
The Bartek coupler spliced connection has a higher
breaking load capacity than the steel rebar: Bar Break
System.
Bar break couplers are recommended in areas with seismic activities. The couplers are available in the
diameters of 12mm to 50mm.
The high strength of the coupler connection is being achieved by cold forging. The upsetted bar end
has a larger core diameter than the bar to ensure that the joint is stronger than the bar itself. Parallel
metric threads are cut on the enlarged ends.
Full strength joint allowing full ductile elongation of
reinforcing bars.
Manual assembly. No torque wrench required.
No risk of cross threading quality control is just by
visual inspection.
Reduce congestion of bars.
Speed up construction time.
BARTEK SYSTEMS ® COUPLER SPLICING SYSTEM
Lapped joints are dependent
upon the concrete for load
transfer. For this reason, any
degradation in the integrity of
the concrete could
significantly affect the
performance of the joint. The
strength of a mechanical
splice is dependent on the
concrete in which is located.
R e i n f o r c e m e n t B a r C o u p l e r
STEEL REBAR CONGESTION IN
CONCRETE WITH COUPLERS STEEL REBAR CONGESTION IN
CONCRETE WITHOUT COUPLERS
FE A TU RE S
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BARTEK SYSTEMS ® COUPLER DIMENSIONS
- Other sizes are available upon request
Product Codes
Bar Dia. (mm)
Coupler External Dia.
(mm)
Coupler Internal Dia.
(mm)
Coupler Length (mm)
Thread Size
(mm)
Thread Pitch (mm)
CCBK12160M 12 20.0 11.9 30.0 M14 2.0
CCBK16200M 16 26.0 17.4 40.0 M20 2.5
CCBK20240M 20 32.0 20.9 48.0 M24 3.0
CCBK25300M 25 40.0 26.3 60.0 M30 3.5
CCBK28330M 28 44.5 29.3 66.0 M33 3.5
CCBK32360M 32 50.0 31.8 72.0 M36 4.0
CCBK36420M 36 56.0 34.8 80.0 M39 4.0
CCBK40450M 40 62.0 40.3 90.0 M45 4.0
Table 1.0
BARTEK SYSTEMS ® COUPLER SPLICING SYSTEM
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Bartek “P” coupler splicing system is designed for the connection of the steel rebars with the torque
wrench.
The threading process is simple and requires one machine only.
The system provides safe and simple installation which promotes the productivity at site.
Bartek “P” coupler spliced connection offers a breaking load capacity at the least equal to that of the
used steel rebar.
The couplers are available from Ø12mm – Ø40mm.
Bartek “P” Parallel direct rolling system
Steel Bar
Diameter
(mm)
16
18
20
22
25
28
32
36
40
Outer
Diameter
of Coupler
(mm)
25
28
30
32
38
42
48
54
59
Length of
Coupler
(mm)
45
50
55
60
65
70
80
90
95
Size of
Thread
M16
x 2.5
M18.3
x 2.5
M20.5
x 2.5
M22.5
x 2.5
M25.5
x 3.0
M28.5
x 3.0
M32.5
x 3.0
M36.5
x 3.0
M40.5
x 3.0
Table 1.1
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High tensile strength as per German standard (DIN 1045), British standard (BS 8110)
Easy and fast application
Safe connection which offers breaking load capacity equal to that of the used steel rebar
Offers a solution to the steel congestion at the connection point, which facilitates concrete
pouring.
Large Rebar Small Rebar
Reducer
Adding length with nuts
Adding Length without nuts
Bartek Systems ® “H” Hydraulic Pressed Couplers
ADVANTAGES:
Standard Parameter for BARTEK “H” Hydraulic Pressed Couplers
Anchor Plate Linking
Bar Terminator
Weldable Couplers
Bartek Systems Special ® Coupler Types
Table 1.2
Steel Bar
Diameter
(mm)
16
18
20
22
25
28
32
36
40
Outer
Diameter
of
Coupler
(mm)
25
28
30
32
38
42
48
54
59
Length of
Coupler
(mm)
45
50
55
60
65
70
80
90
95
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Bartek Systems ® Threading - Types
This is used where the continuation bar can be
rotated. The end of the bars are upset and threaded
for half length of the coupler.
(1)
(2)
(3)
This is used where it is not possible to rotate the
continuation bar. Therefore the thread of the
continuation bar is extended to full coupler length.
Screw the coupler to the rear of the thread on the
continuation bar.
(1)
(2)
(3)
Position the continuation bar with the coupler against
the end of the first bar.
Rotate the coupler from the continuation bar to
engage against the rear of the tread on the opposing
bar and lock tight.
Bartek Systems ® Type-A
Bartek Systems ® Type-B
Screw the coupler to the rear of the thread on the
fixed bar and lock tight. The bar end should be
central within the coupler.
Remove the plastic cap from the coupler. Position
and rotate the continuation bar in the coupler.
Tighten the joint using wrench on the continuation bar.
After tightening there should be more than 2-4mm of the
thread exposed, depending on the diameter of the
rebar.
t
t
2t
2t
2t
t
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(4)
Using wrench, rotate the continuation bar to lock the two bar
ends against each other. After tightening, the length of
exposed thread should not be more than half of the coupler
length plus 2-4mm depending on the diameter of the rebar.
This type has an additional locknut and is used where the
continuation bar cannot be rotated. The continuation bar is
threaded for full coupler length plus the length of the
locknut.
(1)
Screw the locknut followed by the coupler to the rear of the
thread on the continuation bar.
Position the continuation bar with the coupler against the end
of the first bar.
(2)
(3)
Rotate the coupler from the continuation bar to engage
against the rear of the thread on the opposing bar and lock
tight.
Rotate the locknut along the continuation bar.
(4)
(5)
Hold the rebar in its required orientation and with a
wrench tighten the locknut against the coupler.
Bartek Systems ® Type-C
2t
2 ⅔t
t
⅔t
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Coupler – threaded steel coupler system is a
natural extension to our rebendable Stabox
rebar connection system for rebars 12mm
The rebar connection system with the 100%
load transmission – suitable for both static
and dynamic load.
Secure protection of the bars by thread
protection caps.
The use of coupler box ensures precise
location of the reinforcement bars and
protection and protects the couplers.
Simple and easy assembly of the splicing
joints.
Added splicing joint strength through the
interlocked connection between the two
concrete pourings.
2nd concrete pour -additional bar
1st concrete pour Bar
1st concrete pour 2nd concrete pour
Bar+ socket incl. coupler cap
Rebar Connection System
Standard Readymade Systems & Accessories
2nd Bar thread protection cap
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BARTEK SYSTEMS ® COUPLERS
M e t h o d o f S t a t e m e n t
II. The concentricity between the end and the steel
bar <0.3~1;
III. Out of roundness of ends, circumference <1/3;
unfilled corner 3*1.5;
IV. Loss of end (middle, root), circumference <1/3;
unfilled corner 5*1;
V. The axial crack in the end is allowable, no more
than 3 strips.
VI. No transverse crack is allowed.
Table 1.3
COLD FORGED BAR
THREADED FORGED BAR
Steel Bar
Diameter
(mm)
16
18
20
22
25
28
32
36
40
Outer
Diameter
of Coupler
(mm)
25
28
30
32
38
42
48
54
59
Length of
Coupler
(mm)
45
50
55
60
65
70
80
90
95
The procedure consists of three steps:
STEP-1 FORGING
The bars to be joined are cut to the required size
All machines to be prepared for operation & the supervisor must ensure that all safety
measures are implemented
The surface of the edge must be vertical to the axial line of the steel bar therefore it could be
ground flat & straight by disc cutter.
Remove any flexure & inspect the bar for any defect or burr.
Insert the end of the bar into the cold forging machine, the machine to be operated as per
the instruction in the Bartek machine manuals, (The operator has to read and understand the
instructions & troubleshooting guide before starting the operation, the same is applicable
prior to the operation of the threading machine)
Inspection of the forged end has to be carried out as per the following proceedures:
1. The size of the ends should be checked against the following table.
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STEP-2 THREADING
The forged steel bar is now ready for threading by clamping the forged side of the bar in the
gripping mechanism of the threading machine.
By operating the machine, the cutting head will cut the thread into the end of the forged steel
bar.
Release the threaded bar from the gripping mechanism.
Inspection according to the following.
Steel Bar
Diameter
(mm)
12
14
16
18
20
22
25
28
32
36
40
Size
(m)
14 x
2
16 x
2
20 x
2.5
22 x
2.5
24 x
3
27 x
3
30 x
3.5
33 x
3.5
36 x
4
39 x
4
45 x
4
Length
(mm)
14
16
20
22
24
27
30
33
36
39
45
Teeth
Height
(H)
1.083
1.083
1.353
1.353
1.624
1.624
1.895
1.895
2.165
2.165
2.165
The concentricity between the end of rebar <0.3 of half finished product.
The out of roundness of end <1/3, unfilled corner <3x1.5 of half finished product.
Loss of end <1/3, loss of middle <5x1 of half finished product.
The bias between rebar end thread axes and rebar end axes is less than 0.5mm
The length of thread end of rebar is half of the relative size of rebar coupler.
The thread if rebar end can be used to connect with the relative siz of coupler, try whether
it can pass through smoothly, tight or loose.
Crosswise fissure or striation of the thread end of rebar can be accepted <0.015d+0.1,
maximum 0.4mm. The crosswise fissure or striation is not allowed more than three;
On the thread end of rebar, it is allowed that there is lack of teeth.
a. The circle of the end face can allowed lack of teeth.
b. The diameter of thread head allowed less of ≥0.15Hx2
c. The circumference of thread head <1/5 length ,1/2 length of thread head <0.25H
Ø
Dia
.
Length +2
-2
Table 1.4
M e t h o d o f S t a t e m e n t
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STEP-3 ASSEMBLY
A coupler needs to be fixed by hand fro one side till-half length of the coupler on the
designated threaded bar & protected with the coupler cap.
The other threaded rebar to be protected by rebar cap.
Later the protective caps can be removed from both sides & other bar can be as well
connected by hand.
1st concrete pour (steel bar 1) 2nd concrete pour (steel bar 2)
M e t h o d o f S t a t e m e n t
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BARTEK “P” COUPLERS
STEP-1 : PREPARATION
Select the type of the threading (Left or Right);
Prepare the machine by installing positive or negative idler wheel rest accordingly, the
supervisor must ensure that all safety measures are implemented.
The bars to be joined are cut to the required size.
The surface of the edge must be vertical to the axial line of the steel bar therefore it could be
ground flat & straight by disc cutter.
Remove any flexure & inspect the bar for any defect or burr.
Install the end of the bar & clamp it on the machine. (The operator has to read and
understand the instructions and troubleshooting guide before starting the operation)
Switch on the machine to start the rib peeling process.
Our Rib Peeling / Direct Roll Threading System can carry out two consecutive process at
once:
i. Produce a smooth surface at the rebar end.
ii. Thereafter, the machine will automatically roll thread the smooth end surface of the
rebar.
Once finished, the machine will stop & retract the threaded rebar ready to be joined later
with coupler.
The operator can now release the clamp to extract the bar.
to the steel bar axial line.
STEP-2 : ASSEMBLY
The threaded rebar is now ready for joining; a coupler needs to be initially fixed by hand
from one side of the connection till half-length of the coupler on the designated threaded
bar.
The one side of the connection is ready for use.
To achieve a full spliced connection using Bartek “P” couplers a torque wrench shall be
used:
i. The torque wrench to be adjusted to the required torque.
ii. Turn the threaded bar into the coupler until hand-locked. For verification draw a line
on the bar at the coupler location to verify the number of turns required to lock it by
wrench later.
iii. Tighten with the torque wrench & count the turns until you hear the click sound of the
torque wrench.
iv. Use the same number of turns + 15% as a guide for the same coupler size to be used.
(For example: one & half turns are usually required for Bartek “P” 32mm couplers.)
Ø
Dia
.
Length +2
-2
M e t h o d o f S t a t e m e n t
1st concrete pour (steel bar 1) 2nd concrete pour (steel bar 2)
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This splicing method is recommended for the connection of the existing non-threaded rebars with
other rebars; threading is not necessary.
STEP-1 :
Prepare the existing rebars, the surface of the edge must be vertical to the axial line of the
steel bar therefore it could be ground flat & straight by disc cutter.
Remove any flexure & inspect the bar for any defect or burr.
The machine to be prepared & operated as per the instruction in the Bartek “H” machine
manual, (The operator has to read and understand the instruction & troubleshooting guide
before starting the operation):
i. Check pressure gauge to ensure proper function.
ii. By means of chalk & ruler, mark the press line where the sleeve will be fixed.
Install on the upper (the new) rebar half section of the sleeve.
With the specific mold fixed on the hydraulic press, apply three consecutive presses on the
half section of the sleeve, now the sleeve is fixed on the side of the new rebar.
Join the new rebar with the open sleeve side to connect it with the existing rebar.
Apply again three presses with the hydraulic on the other side of the sleeve to ensure full
splice.
HYDRAULIC PRESSED COUPLERS
M e t h o d o f S t a t e m e n t
(steel bar 1)
PRESSED
PRESSED
BARTEK COUPLER No. 2 :
(steel bar 1) (steel bar 2)
BARTEK COUPLER (TO
BE PRESSED)
(steel bar 2)
No. 1 :
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(steel bar 2)
No. 3 :
(steel bar 1)
PRESSED
PRESSED
BARTEK COUPLER
BATCH No. CODE
SIZE OF THE COUPLER
BARTEK COUPLER TYPES
Bartek “No Marking” standard Bartek Coupler
Bartek “S” Super Coupler
Bartek “P” Rib Peeling Coupler
Bartek “H” Hydraulic Coupler
How to check and identify your Bartek Coupler
For Middle East INQUIRIES:
BARTEK SYSTEMS FZC
P.O.Box: 121260 Sharjah, U.A.E.
Tel : +971 6 552 8744
INGPRO GMBH Sterngasse 3 ;1010 Vienna – Austria TEL: +43 15320180-203 FAX: +43 15320180-603 e-mail: [email protected]
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