ENGINEERED
Bar Systems
www.dextragroup.com
Vision To be a global leader in engineering, manufacturing and delivery of high value added quality products and services for the construction industry.
Mission To achieve customer recognition and stakeholder satisfaction by committing to the highest level of performance with integrity, creativity and a passion for results.
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| DEXTRA | E n g i n e e r e d B a r S y s t e m s |
Tension bars for the suspension of the BITEC’s roof structure (exhibition center expansion project), Bangkok, Thailand
About us Established since 1983, Dextra Manufacturing is a leading manufacturer and distributor of engineered construction products
Dextra has developed for the past fifteen years a comprehensive range of high-performance bar systems made of steel and composite materials suitable for a variety of applications in ground anchoring, concrete tensioning and roof and faรงade support. The combination of our in-house engineering expertise and design capability with modern manufacturing facilities has
Engineering & BIM support
allowed us to participate in the supply of very large construction projects such as Suvarnabhumi Airport in Bangkok (2,000 tons of tension bars) or Boubiyan Seaport (6,000 Tons of Tie rods and accessories). Thanks to our ISO and ASME quality certifications, we are able to control and maintain a high level of quality in all our bar components and systems and guarantee full compliance with the project specifications and customer satisfaction from design stage to delivery and installation.
Content Our expertise
4-5
Marine tie Rods
6-9
Architectural bar systems Carbon steel tension bars Stainless steel tension bars Compression struts
10-15 12 14 15
Post tensioning bars Smooth systems Shear key systems Fully threaded systems Worldwide references
16-17 18 18 20
Production
22-23
Quality
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| W o r l d w i d e R e f e r e n c e s | | P o s t Te n s i o n i n g B a r s | | A r c h i t e c t u r a l B a r S y s t e m s | | M a r i n e T i e R o d s | | O u r E x p e r t i s e | | A b o u t U s |
for the building and civil industries.
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| DEXTRA | E n g i n e e r e d B a r S y s t e m s |
Our expertise
Dextra can guide you step-by-step in selecting the most appropriate and cost effective
Identification of need
solution for your project. Our guidance is based on 30 years of experience in managing large-scale & complex projects.
SYSTEM OPTIMIZATION AND CUSTOMIZATION Dextra has developed over the years a comprehensive standard range of components that allows a quick adjustment and customization of our products for a truly optimized
Design & Engineering
project solution. Our team will support in the selection and drawing of your systems. For designers, Dextra offers on www.dextragroup.com a full technical documentation as well as design/drafting software components to understand in detail how to work with our systems and create flawless 2D drawings and 3D assemblies.
TOTAL CONTROL OVER MANUFACTURING Dextra operates its own manufacturing and testing facilities at our factory in Bangkok. Our installations are supported by solid ISO-certified quality assurance processes.
Manufacturing & Quality
All suppliers are also regularly audited by our team of engineers in order to ensure quality compliance and drive continuous improvement. Inspections prior to delivery are arranged in our own factory, or in partner laboratories when required.
PACKING & SHIPPING We pride ourselves on providing only the best packing solution for all our goods to ensure safe shipping and flawless deliveries. We guarantee that you will receive your
Packing and Logistics
goods in excellent conditions with each component individually marked to allow easy and quick identification and save time upon installation. When time is an issue, Dextra can offer acceleration schemes to expedite our solutions in order to prevent site delays.
ON-SITE SERVICE & SUPPORT We know that product delivery is only one more step in your project. Dextra international
Installation & Testing
experts can provide assistance during installation phase as required.
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DETERMINATION OF THE RIGHT SOLUTION
Wheatstone LNG Terminal, Australia
Marine tie rods
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| DEXTRA | E n g i n e e r e d B a r S y s t e m s |
About our range
Typical applications
Tie Rods are used in port and harbour construction to anchor waterfront structures.. Dextra’s unique range covers various steel grades from 355 to 700 N/mm2 in yield strength, and thread diameters from M42 to M162. Several articulated joints such as swivel plates, captive nuts and ball cage systems can be used to accommodate the project requirements. Our anchorages are compatible with any sheet piles profile, combi walls or concrete diaphragm walls.
• Harbours • Wharves
For projects using sheet piles, Dextra can also design and prefabricate waling beam systems with waling bolts to provide a complete anchoring system which will ensure full compatibility and consistency with our tie rods systems.
Product features • • • •
•
Available in steel grades 355, 500, 700 N/mm². Thread diameter range M42 to M162. Rolled threads for better performance. Minimum Elongation ›› Gr 355 18-22% ›› Gr 500 17% ›› Gr 700 15% Impact strength: ›› Gr 355, 500: 27 J at -20°C ›› Gr 700: 27 J at 0°C
• Jetties • River embankments
Product benefits Various articulation solutions with captive nut, swivel nut, ball cage, T-plate, angle seating, and/or pad-eye ends.
• Ductile design. • Quick installation. • Full range of accessories and corrosion protection •
options available to answer all your project requirements. Post-tensioning applicable.
Corrosion protection / surface finish Various alternatives are available to enhance corrosion protection, such as bituminous tape, epoxy coating, sacrificial thickness depending on the project design and requirements.
Tie rod system
Sheet pile wall (by others)
Tie rod anchorage
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| W o r l d w i d e R e f e r e n c e s | | P o s t Te n s i o n i n g B a r s | | A r c h i t e c t u r a l B a r S y s t e m s | | M a r i n e T i e R o d s | | O u r E x p e r t i s e | | A b o u t U s |
Port Autonome de Pointe Noire, Republic of Congo
SLNG Terminal, Singapore
Tie Rods load table Grade 355/510 Thread size
Nominal bar diameter
Linear weight
mm
mm
kg/m
Grade 500/660
Grade 700/900
Yield load*
Ultimate load*
Tension capacity as per EC3**
Yield load*
Ultimate load*
Tension capacity as per EC3**
Yield load*
Ultimate load*
Tension capacity as per EC3*
kN
kN
kN
kN
kN
kN
kN
kN
kN
M42
40
9.86
398
572
412
560
740
533
785
1,009
726
M45
43
11.40
464
666
480
653
862
621
914
1,175
846
M48
45
12.48
523
751
541
737
972
700
1,031
1,326
955
M52
49
14.80
624
897
645
879
1,160
835
1,230
1,582
1,139
M56
53
17.32
721
1,035
745
1,015
1,340
965
1,421
1,827
1,315
M60
57
20.03
839
1,205
867
1,181
1,559
1,122
1,653
2,126
1,531
M64
61
22.94
950
1,365
983
1,338
1,766
1,272
1,873
2,408
1,734
M68
65
26.04
1,085
1,558
1,122
1,528
2,017
1,452
2,139
2,750
1,980
M72
69
29.35
1,228
1,764
1,270
1,730
2,283
1,644
2,422
3,114
2,242
M78
75
34.67
1,460
2,098
1,511
2,057
2,715
1,955
2,880
3,702
2,666
M83
80
39.45
1,669
2,398
1,726
2,351
3,103
2,234
3,291
4,231
3,047
M88
85
44.54
1,892
2,718
1,957
2,664
3,517
2,532
3,730
4,796
3,453
M93
90
49.93
2,128
3,058
2,202
2,998
3,957
2,849
4,197
5,396
3,885
M98
95
55.63
2,379
3,418
2,461
3,351
4,423
3,184
4,691
6,031
4,342
M103
100
61.64
2,643
3,798
2,734
3,723
4,915
3,539
5,213
6,702
4,825
M108
105
67.96
2,922
4,198
3,022
4,115
5,432
3,911
5,762
7,408
5,334
M113
110
74.59
3,214
4,618
3,325
4,527
5,976
4,303
6,338
8,149
5,867
M118
115
81.52
3,521
5,058
3,642
4,959
6,546
4,713
6,942
8,926
6,426
M123
120
88.76
3,841
5,518
3,973
5,410
7,141
5,141
7,574
9,738
7,011
M128
125
96.32
4,175
5,998
4,319
5,881
7,762
5,589
8,233
10,585
7,621
M133
130
104.18
4,523
6,498
4,679
6,371
8,410
6,055
8,919
11,468
8,257
M143
140
120.82
5,261
7,559
5,442
7,411
9,782
7,043
10,375
13,339
9,604
M153
150
138.69
6,055
8,699
6,264
8,529
11,258
8,106
11,940
15,352
11,053
M162
160
157.80
6,818
9,794
7,052
9,602
12,675
9,126
13,443
17,284
12,445
* Yield loads and ultimate loads are unfactored. ** Loads as per EN 1993-5 (Eurocode 3) considering kt factor =0.9 (as permitted when rotation is possible at anchorages), γMo,= 1, γM2=1.25 and γMt,ser = 1.1
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| DEXTRA | E n g i n e e r e d B a r S y s t e m s |
System presentation
T-Plate + Pad Eye
Plate & Nut + Hinge coupler
King pile
Angle seating
Anchor plate + Pad Eye
Coupler
Concrete block
Turnbuckle
Splicing plate
Combi-Wall
Swivel plate and nut
Circular pile Ball Cage Waling bolt
Waling beam
Sheet pile wall
Above combination of accessories for presentation purpose only.
Concrete wall
Steel wall
Type of walls and compatibility
Wall element
Captive Nut
Ball Cage
Plate & Nut
Anchor Plate
T-Plate
Swivel plate
Swivel Angle Seating
Additional accessory on bar end
-
-
+ Hinge Coupler
+ Pad Eye
+ Pad Eye
+ Swivel Nut
+ Swivel Nut
Rotation capability
± 5°
± 10°
± 90°
± 90°
± 90°
± 7°
Any angle +-7°
Directions
all
all
vertical
vertical
vertical
all
all
X
X
X
X
Sheet Pile + Waling beam HZ Pile (King Pile)
X
Circular Pile / Combi-Wall
X
X
X
X
Concrete Capping Beam
X
X
X
X
Diaphragm Wall
X
X
Concrete Block
X
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Captive Nut
Architectural bar systems
10 | DEXTRA | E n g i n e e r e d B a r S y s t e m s |
Futsal Arena,Bangkok, Thailand
Tension bars are typically acting as bracing or suspenders and provide the benefits of high strength, length adjustment and post-tensioning capability. Being most of the time visible and selected for large architectural structures, they need to be strong but also aesthetic. Compression struts complement the Dextra range of roof supporting systems when structural members are required to take compression loads. Featuring a wide range of sizes and accessories in various steel grades and in both carbon and stainless steel with various finishes, Dextra tension bars and compression struts meet the engineering and design requirements of consultants and architects alike.
Typical applications ●
Roof support systems
●
Canopies roof support systems
●
Truss bracing systems
●
Hanging floors
●
Road and pedestrian bridges
●
Temporary stays and braces
CAD & BIM Architectural bar structures are often complex and multidimensional. Design of realistic structures is key to assess how your project will look like and be installed. Dextra supports designers with automated drawing components for AutoCAD (2D) and Trimble Tekla Structure (3D). www.dextragroup.com
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| W o r l d w i d e R e f e r e n c e s | | P o s t Te n s i o n i n g B a r s | | A r c h i t e c t u r a l B a r S y s t e m s | | M a r i n e T i e R o d s | | O u r E x p e r t i s e | | A b o u t U s |
About our range
Carbon steel tension bars Central Salaya department store, Nakhon Pathom, Thailand
About our carbon steel range
Design references BS EN 1993 (Eurocode 3)
• Available in high-grade steel, allowing the use of smaller bar diameters to achieve the same tension capacity, which in turn makes site installation both quicker and easier. In situ length adjustment can be achieved by rotation of the bar into the forks and/or at each turnbuckle along the tendon. Turnbuckles also allow for the application of a preload, making for example self-weight sagging corrections easier.
• •
Product features
Surface finish
• • • •
Carbon Steel Tension Bars can either be delivered epoxy painted or galvanized. If required, they can also be delivered non-painted (plain black steel surface).
•
Available in steel grades 355, 460, 500 & 700 N/mm² Thread diameter range M16 to M162. Rolled threads for better performance. Minimum Elongation* ›› Gr 355 18-22 (varies upon bar diameter) ›› Gr 460 17% ›› Gr 500 17% ›› Gr 700 15% Impact strength: ›› Gr 355, 460, 500: 27 J at -20°C ›› Gr 700: 27 J at 0°C * elongation at failure as per ISO 6892 , i.e on gauge length 5.56 √So
Fork
Coupler and lock covers
Accessories Forks and Spades
A pair of Fork and Spade form an articulation joint. Forks and spades are connected to gusset plates.
Couplers
Couplers are used to connect standard length bars to achieve a longer required length.
Turnbuckles
Turnbuckles are used to connect and adjust the bar to achieve the required length and remove sagging.
Cross Turnbuckles
Cross-turnbuckles allow two tendons to cross each other in the same plan.
Lock covers
Lock covers are used to cover the exposed thread of the bar.
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Turnbuckle and lock covers
Spade
Carbon steel systems load table
Bar Thread size*
Nominal Bar Diameter**
Linear weight
Grade 460/610
Grade 500/660
Yield Load***
Ultimate Load***
Tension capacity as per EC3****
Yield Load***
Ultimate Load***
Tension capacity as per EC3****
Yield Load***
Grade 700/800
Ultimate Load***
Tension capacity as per EC3****
Yield Load***
Ultimate Load***
Tension capacity as per EC3****
mm
mm
kg/m
kN
kN
kN
kN
kN
kN
kN
kN
kN
kN
kN
kN
M16
15
1.4
56
80
58
72
96
69
78
103
74
110
125
90
M18
17
1.8
68
98
71
89
117
85
96
127
91
135
154
111
M20
19
2.2
87
125
90
113
149
108
122
162
116
171
196
141
M24
23
3.3
125
180
129
162
215
155
176
233
168
247
282
203
M27
26
4.2
163
234
169
211
280
202
230
303
218
322
368
265
M30
28
4.8
199
286
206
258
342
246
280
370
266
392
448
323
M33
31
5.9
246
354
255
319
423
305
347
458
330
485
555
399
M36
34
7.1
290
417
300
376
498
359
408
539
388
572
653
470
M39
37
8.4
346
498
358
449
595
429
488
644
464
683
781
562
M42
40
9.9
398
572
412
516
684
492
560
740
533
785
897
646
M45
43
11.4
464
666
480
601
797
574
653
862
621
914
1,045
752
M48
45
12.5
523
751
541
678
899
647
737
972
700
1,031
1,179
849
M52
49
14.8
624
897
645
809
1,072
772
879
1,160
835
1,230
1,406
1,013
M56
53
17.3
721
1,035
745
934
1,238
892
1,015
1,340
965
1,421
1,624
1,169
M60
57
20.0
839
1,205
867
1,087
1,441
1,037
1,181
1,559
1,122
1,653
1,890
1,361
M64
61
22.9
950
1,365
983
1,231
1,632
1,175
1,338
1,766
1,272
1,873
2,141
1,541
M68
65
26.0
1,085
1,558
1,122
1,405
1,864
1,342
1,528
2,017
1,452
2,139
2,444
1,760
M72
69
29.3
1,228
1,764
1,270
1,591
2,110
1,520
1,730
2,283
1,644
2,422
2,768
1,993
M78
75
34.7
1,460
2,098
1,511
1,892
2,509
1,807
2,057
2,715
1,955
2,880
3,291
2,369
M83
80
39.5
1,669
2,398
1,726
2,163
2,868
2,065
2,351
3,103
2,234
3,291
3,761
2,708
M88
85
44.5
1,892
2,718
1,957
2,451
3,251
2,340
2,664
3,517
2,532
3,730
4,263
3,069
M93
90
49.9
2,128
3,058
2,202
2,758
3,657
2,633
2,998
3,957
2,849
4,197
4,796
3,453
M98
95
55.6
2,379
3,418
2,461
3,083
4,088
2,943
3,351
4,423
3,184
4,691
5,361
3,860
M103
100
61.6
2,643
3,798
2,734
3,425
4,542
3,270
3,723
4,915
3,539
5,213
5,957
4,289
M108
105
68.0
2,922
4,198
3,022
3,786
5,021
3,615
4,115
5,432
3,911
5,762
6,585
4,741
M113
110
74.6
3,214
4,618
3,325
4,165
5,523
3,977
4,527
5,976
4,303
6,338
7,244
5,215
M118
115
81.5
3,521
5,058
3,642
4,562
6,050
4,356
4,959
6,546
4,713
6,942
7,934
5,712
M123
120
88.8
3,841
5,518
3,973
4,977
6,600
4,752
5,410
7,141
5,141
7,574
8,656
6,232
M128
125
96.3
4,175
5,998
4,319
5,410
7,174
5,165
5,881
7,762
5,589
8,233
9,409
6,774
M133
130
104.2
4,523
6,498
4,679
5,861
7,773
5,596
6,371
8,410
6,055
8,919
10,193
7,339
M143
140
120.8
5,261
7,559
5,442
6,818
9,041
6,509
7,411
9,782
7,043
10,375
11,857
8,537
M153
150
138.7
6,055
8,699
6,264
7,846
10,405
7,492
8,529
11,258
8,106
11,940
13,646
9,825
M162
160
157.8
6,818
9,794
7,052
8,834
11,715
8,435
9,602
12,675
9,126
13,443
15,364
11,062
* ** *** ****
Other bar thread size available for larger order quantities. Nominal bar diameter may vary for small order quantities. Unfactored load. As per BS EN 1993-1 (Eurocode 3)
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Grade 355/510
Stainless steel tension bars
Stainless steel system load table
Design references BS EN 1993 (Eurocode 3)
SS Grade S460 Bar Thread size
Nominal Bar Diameter*
Linear weight
(mm)
(mm)
M16
Yield Load**
Ultimate Load**
Tension capacity as per EC3***
(kg/m)
(kN)
(kN)
(kN)
15
1.4
72
102
73
M18
17
1.8
89
125
90
M20
19
2.2
113
159
115
M24
23
3.3
162
229
165
M27
26
4.2
211
299
215
M30
28
4.8
258
364
257
M33
31
5.9
319
451
316
M36
34
7.1
376
531
380
M39
37
8.4
449
634
450
M42
40
9.9
516
729
525
M45
43
11.4
601
849
607
M48
45
12.5
678
958
665
M52
49
14.8
809
1,143
789
M56
53
17.3
934
1,320
923
M60
57
20
1,087
1,535
1,067
M64
61
22.9
1,231
1,739
1,222
M68
65
26
1,405
1,986
1,388
M72
69
29.3
1,591
2,249
1,564
M78
75
34.7
1,892
2,674
1,847
M83
80
39.5
2,163
3,056
2,102
M88
85
44.5
2,451
3,464
2,373
M93
90
49.9
2,758
3,897
2,660
M98
95
55.6
3,083
4,356
2,964
M103
100
61.6
3,425
4,840
3,284
M108
105
68
3,786
5,350
3,621
*Nominal bar diameter may vary for small order quantities ** Unfactored load *** As per BS EN 1993-1 (Eurocode 3) 14 | DEXTRA | E n g i n e e r e d B a r S y s t e m s |
About our stainless steel range When the requirements for aesthetics or corrosion protection are particularly high, stainless steel tension bars are the perfect solution.
Product features • • • • •
Available in stainless steel grade S460. Thread diameter range M16 to M108. Rolled threads. Minimum Elongation: 25%. Impact strength: 100 kV (J) at 20°C.
Surface finish Two surface finishes are available: satin finish and mirror finish. If not specified Dextra will consider Satin finish.
Satin finish
Mirror finish
Compression struts
Typical applications
Design references
• Roof support systems. • Truss bracing systems.
BS EN 1993 (Eurocode 3)
Product features • Struts are available in two alternative designs: • Architectural • • • •
•
(with long neck and smoother lines). • Non-architectural. Carbon steel tube (Circular Hollow Section) range from 42mm to 356mm. Thread diameter range from M16 to M113. Length adjustment of the assembly possible at each fork end. Minimum Elongation. ›› Gr 355 21% ›› Gr 460 21% Impact strength 27 J at -20°C.
Non-Architectural strut
Architectural strut
Surface finish Compression struts can either be delivered painted or galvanized. If required, they can also be delivered nonpainted (plain black steel surface).
Model selection CHS (circular hollow section) compression struts range from M16 to M113 and are available in grade 355 and 460. The total compression capacity is limited by the resitance to buckling (which depends on the size of the CHS and pin-to-pin length). Please refer to the technical datasheet available on dextragroup.com for more information about strut selection. For larger load or span custom length can be accomodated.
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Midfield Terminal at Abu Dhabi International Airport, UAE
Hyderabad Metro, India
Post tensioning bar systems
Jahra Road, Kuwait 16 | DEXTRA | E n g i n e e r e d B a r S y s t e m s |
About our range
Design references
Post-Tensioning bars are used for permanent works such as connecting various segments of bridge structures, shear keys for seismic resistance at the connection of segments or girders and piers, and reinforcement of piers that are subject to horizontal pre-stressing forces.
• •
AASHTO Eurocode 2
They are also used for temporary works such as anchoring of temporary steel frame supports, lifting bars for segment launching trusses, and stitching bridge segments. These bars need to have sufficient strength properties to carry the heavy loads of structures and pre-loading to balance the external loads structures are subjected to at a later stage.
Typical applications ● ● ● ● ● ● ● ● ● ●
Post-tensioning of concrete structures. Temporary bracing / Temporary post-tensioning. Heavy lifting. Seismic restrainer system. Hold down for steel structure, wind turbine. Structural steel frame ties. Bridge segment connections. Bridge segment continuity tendons. Pre-stressed concrete. Pile-testing.
Fully threaded bar system
The services of a fully dedicated design team are available to provide engineering support to our customers.
Smooth bar system
Our post-tensioning range features both fully-threaded bars and smooth bars, with a full range of accessories.
Corrosion protection Various corrosion protection are available depending on whether tendon is temporary permanent, bounded, unbounded, with or without free length. Protection is usually achieved with a combination of heat shrink, grease, paint and/ or grout. The smooth bars for shear key applications are normally supplied in a HDPE tube injected with grease and specialy designed accessories. | w w w. d e x t r a g r o u p . c o m | DEXTRA | 1 7
| W o r l d w i d e R e f e r e n c e s | | P o s t Te n s i o n i n g B a r s | | A r c h i t e c t u r a l B a r S y s t e m s | | M a r i n e T i e R o d s | | O u r E x p e r t i s e | | A b o u t U s |
Jahra road, Kuwait
Smooth bar range
Special application: Shear key & Hold down bars application
Product features • Diameter range from 28 mm to 100 mm. • Three steel grades available.
• •
• Shear key and hold down bars are a special application of PT
›› Gr 835/1030 ›› Gr 930/1080 ›› Gr 1050/1200 Rolled threads (obtained with cold plastic deformation of the metal between two dies) optimized for fatigue performance. Thread profile is ISO metric thread according to ISO 262 - NFE 03014 and 03053.
smooth bar systems where assembly acts as a permanent seismic restrainer for the connection of elevated metro/roads precast segments.
• Shear key bar systems and hold down bar systems are available with their full range of accessories for grade 1050/1200 and come in two diameters: 37 mm (thread M39) and 43 mm (thread M45).
Shear Key Bar
Hold down bar
Product benefits • • • •
High impact resistance. Smaller pitch allows finer adjustment and brings less draw-in loss. Full range of accessories for specific applications. High fatigue performance.
Load table Thread Size
Critical Cross Section Area
Nominal diameter
Linear weight
(mm2)
(mm)
(kg/m)
Grade 835/1030 Yield load (kN)
Ultimate load (kN)
Grade 930/1080 Yield load (kN)
Ultimate load (kN)
Grade 1050/1200 Yield load (kN)
Ultimate load (kN)
M30
561
28
4.83
468
578
522
606
589
673
M33
694
31
5.92
579
715
645
750
729
833
M36
817
34
7.13
682
842
760
882
858
980
M39
976
37
8.44
815
1,005
908
1,054
1,025
1,171
M42
1,121
40
9.86
936
1,155
1,043
1,211
1,177
1,345
M45
1,307
43
11.40
1,091
1,346
1,216
1,412
1,372
1,568
M48
1,474
45
12.48
1,230
1,518
1,371
1,592
1,548
1,769
M52
1,758
49
14.80
1,468
1,811
1,635
1,899
1,846
2,110
M56
2,031
53
17.32
1,695
2,092
1,889
2,193
2,133
2,437
M60
2,363
57
20.03
1,972
2,434
2,198
2,552
2,481
2,836
M64
2,676
61
22.94
2,234
2,756
2,489
2,890
2,810
3,211
M68
3,056
65
26.04
2,551
3,148
2,842
3,300
3,209
3,667
M72
3,460
69
29.35
2,889
3,564
3,218
3,737
3,633
4,152
M78
4,114
75
34.67
3,435
4,237
3,826
4,443
4,320
4,937
M83
4,702
80
39.45
3,926
4,843
4,373
5,078
4,937
5,642
M88
5,329
85
44.54
4,450
5,489
4,956
5,755
5,595
6,395
M93
5,996
90
49.93
5,006
6,176
5,576
6,476
6,296
7,195
M98
6,702
95
55.63
5,596
6,903
6,233
7,238
7,037
8,042
M103
7,447
100
61.64
6,218
7,670
6,926
8,043
7,819
8,936
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Dextra smooth bar systems in action For the new coastal elevated highway Nouvelle Route du Littoral in La RĂŠunion Island, Dextra bar systems (threaded bars, nuts and plates) were used in order to provide lifting points in the base of bridge piles. Each of the M64 bar set was tensioned prior to lifting to perform at loads up to 200 tons. More than 1,500 bar systems Grade 930/1080 were used for this project.
System accessories Corrosion protection accessories Starter steel tube (welded to plate)
Cap
Nuts
Protecting sleeve
Heat-shrink / tape
Cap
HDPE sleeve to protect bar
Bearing plates
Coupler system
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Picture Jahra Road
Fully threaded range
Product features • Diameter range from 25 mm to 50 mm. • Three steel grades available: • 830/1030. • 930/1080. • 1080/1230 N/mm2. • Continuous hot rolled thread.
Product benefits • • • • • • •
Re-usable. Cuttable at site. Continuous thread makes connection possible at any point. Large pitch especially suitable for fast installation and temporary applications. Re-tensioning possible without any damage. Full range of accessories, including corrosion protection accessories, also supplied by Dextra. High grades 1080/1230 available.
Fully threaded systems load table Nominal Diameter
Crosssection area
Linear weight
Grade 830/1030
Grade 930/1080
(mm)
(mm²)
(kg/m)
Yield load (kN)
Ultimate load (kN)
Yield load (kN)
Ultimate load (kN)
Yield load (kN)
Ultimate load (kN)
25
491
4.10
407
506
457
530
530
604
32
804
6.65
667
828
748
869
869
989
36
1,018
8.41
845
1,049
947
1,099
1,099
1,252
40
1,257
10.34
1,043
1,294
1,169
1,357
1,357
1,546
50
1,964
16.28
1,630
2,022
1,826
2,121
-
-
Note 1: Yield loads and ultimate loads are unfactored. Note 2: Diameter 63.5 available upon request and subject to minimum order quantities
20 | DEXTRA | E n g i n e e r e d B a r S y s t e m s |
Grade 1080/1230
Note 3: Grade 555 and Grade 785 available upon request and subject to minimum order quantity.
For the Jahra Road project in Kuwait, Dextra supplied reusable fully-threaded bar systems in diameters 36mm & 50mm, grade 930/1080. The high-grade bars were used for the heavy lifting of precast girders, temporary support of the concrete structures, and temporary bracing of supporting structure.
System accessories
Corrosion protection system
Heat-shrink / tape
Starter steel tube (welded to plate)
Protecting sleeve Available to cover nuts (end caps) or intermediary systems like nut + coupler as shown here.
Nuts
Bearing plates
HDPE sleeve to protect bar
Coupler system
Spherical hex nut plate Spherical hex nut
Flat hex nut
Flat plate
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Dextra fully threaded bar systems in action
01
Worldwide references
02
01
Midfield Terminal roof support Abu Dhabi International Airport Abu Dhabi, UAE, 2013-2016 Compression Struts Systems Stainless steel tension bar systems
22 | DEXTRA | E n g i n e e r e d B a r S y s t e m s |
02
03
Terminal roofing and faรงades Suvarnabhumi International Airport Bangkok, Thailand, 2001 - 2005 Tension bar systems
03
Mandovi Cable Stay Bridge Goa, India, 2016 Fully Threaded PT bar systems for lifting / bracing / temporary post-tensioning
Quay structure Sète Terminal H Sète, France, 2015-2016 Marine Tie Rod systems
04
05
Quay structure Jeddah South Thermal Plant Jeddah, Saudi Arabia, 2013 Marine Tie Rod systems
06
Viaduct precast segment lifting Route du Littoral Réunion Island, 2015-2016 Smooth PT bar systems
05 | W o r l d w i d e R e f e r e n c e s | | P o s t Te n s i o n i n g B a r s | | A r c h i t e c t u r a l B a r S y s t e m s | | M a r i n e T i e R o d s | | O u r E x p e r t i s e | | A b o u t U s |
04
06
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Hong Kong
Guangzhou Bangkok
Dubai São Paulo
Panama
Mumbai
Paris
LosAngeles Angeles Los
Commercial presence in more than 55 countries.
HONG KONG Dextra Pacific Ltd. Tel: (852) 2845 7766 / 2511 8236 Fax: (852) 2586 1656 / 2519 0852 E-mail: dplbuilding@dextragroup.com
CHINA Dextra Building Products (Guangdong) Co., Ltd.
Tel: (86) 20 2261 9901 Fax: (86) 20 2261 9902 E-mail: china@dextragroup.com
EUROPE Dextra Europe SARL. Tel: (33) 1 45 53 70 82 Fax: (33) 1 47 04 28 97 E-mail: europe@dextragroup.com
MIDDLE EAST Dextra Middle-East FZE Tel: (971) 4886 5620 Fax: (971) 4886 5621 E-mail: middleeast@dextragroup.com
INDIA Dextra India Pvt. Ltd. Tel: (91) 22 2839 2694 Fax: (91) 22 2839 2674 E-mail: india@dextragroup.com
www.dextragroup.com
NORTH AMERICA Dextra America Inc. Tel: (1) 805 915 4734 / 818 261 5166 E-mail: america@dextragroup.com
LATIN AMERICA Dextra Latam Tel: (507) 6454 8100 / 831 1442 E-mail: latam@dextragroup.com
SOUTH AMERICA Dextra do Brasil Tel: (55) 11 5505 2475 / 11 5505 2477 E-mail: brasil@dextragroup.com
Engineered Bar Systems range brochure - February 2017 - PS+VDH
HEADQUARTERS THAILAND Dextra Manufacturing Co., Ltd. Tel: (66) 2 021 3800 Fax: (66) 2 328 0374 E-mail: thailand@dextragroup.com