GEOBRACE 254 - RMD Kwikform...Technical Data Sheets Metric Specification European Technical Office...
Transcript of GEOBRACE 254 - RMD Kwikform...Technical Data Sheets Metric Specification European Technical Office...
European Data Sheet 1
© The information contained within these data sheets remain the property of RMD Kwikform and is not to be altered or reproduced without permission.
RMD Kwikform reserves the right to change any specification without giving prior notice.
Date: 19/12/2019 Issue : GB03
GEOBRACE 254 TRENCH LINING SYSTEM
Technical Data Sheets Metric Specification
European Technical Office Brickyard Road, Aldridge, Walsall WS9 8BW, UK.
Telephone: +44 1922 743743
Email: [email protected] Website: www.rmdkwikform.com
EN1090
EN14653
European Data Sheet 2
© The information contained within these data sheets remain the property of RMD Kwikform and is not to be altered or reproduced without permission.
RMD Kwikform reserves the right to change any specification without giving prior notice.
Date: 19/12/2019 Issue : GB03
GEOBRACE 254 TRENCH LINING SYSTEM
Contents Ref Description Page
Contents Contents 2 Introduction 3
1.0 Components and Load Capacities GBX25405 GeoBrace 254 Extension 500mm 4
GBX25410 GeoBrace 254 Extension 1000mm 4
GBX25415 GeoBrace 254 Extension 1500mm 4
GBX25420 GeoBrace 254 Extension 2000mm 4
GBX25430 GeoBrace 254 Extension 3000mm 4
GBX25440 GeoBrace 254 Extension 4000mm 4
GBX25460 GeoBrace 254 Extension 6000mm 4
GBX25480 GeoBrace 254 Extension 8000mm 4
GeoBrace 254 Extensions - Section properties 5
GBX25400 GeoBrace 254 Ram Unit 400kN 6
GBX25506 GeoBrace Ram Unit Lock Off Plate 25mm 7
GBX25507 GeoBrace Ram Unit Lock Off Bar 7
GBX55008 GeoBrace 550 Ram Unit Lock Off Hook 7
GeoBrace Ram Unit Lock Off Assembly 8
GBX25401 GeoBrace 254 Pin 59x335mm o/a 8
BVU70001 8mm R-Clip BZP 8
MSX10051 Megashor M20 Skirt Nut 8
GBX25403 GeoBrace 254 Megashor Connector 9
GBX01000 GeoBrace Forged Steel Shear Stop 670kN 10
GBX25404 GeoBrace 254 Inclined Prop Connector 11
GBX25501 GeoBrace 254 Support/Uplift Bracket 1 12
GBX25502 GeoBrace 254 Support/Uplift Bracket 2 12
GBX25500 GeoBrace 254 Retention Angle 13
GBX25403 GeoBrace 254 Uplift Bracket 3 14
Support & uplift Brackets Bolted to Concrete Structures 15
Support & Uplift Brackets Welded to Steel Sheet Piles 16
GBX25491 GeoBrace-DAMB Adapter 1 17
GBX25492 GeoBrace-DAMB Adapter 2 17
GBX25493 GeoBrace-DAMB Adapter 3 18
GBX25494 GeoBrace-DAMB Adapter 4 18
VAU10019 4 Leg Chains 3mtr - SWL 6.7TON 10mm 19
VAU10020 4 Leg Chains 5mtr - SWL 6.7TON 10mm 19
VAU10012 RChain - 4.7T Shackle-Shackle 2500/13 19
VAU10013 RChain - 4.7T Shackle-Hook 2500/13 19
VAU10002 Double Acting Bucket Pump 19
VAU10005 1/4” Hose M/F ISO B 3.0m - 350 Bar 19
VAU10006 1/4” Hose M/F ISO B 6.0m - 350 Bar 19
Graph 254/1 - Allowable Working Loads - Simply Supported Beams (Sheet to Sheet) 20
Graph 254/2 - Allowable Working Loads - Simply Supported Beams (Pin to Pin) 21
Graph 254/3 - Working Load Envelope - Combined Axial / Bending / Shear 22
Graph 254/4 - Interaction at Supports - Combined Axial / Bending / Prop Load 23
Graph 254/5 - Interaction at Supports - Combined Axial / Bending / Shear 23
Table 1 - Component Makeup for a GeoBrace 254 Assembly with Ram Unit 24
Contact Details: International Offices 25
CONTENTS
European Data Sheet 3
© The information contained within these data sheets remain the property of RMD Kwikform and is not to be altered or reproduced without permission.
RMD Kwikform reserves the right to change any specification without giving prior notice.
Date: 19/12/2019 Issue : GB03
GEOBRACE 254 TRENCH LINING SYSTEM
INTRODUCTION
Introduction Comprising of 8 different lengths of leg extension & a hydraulic ram unit which simply pin together at the joints, the
RMD Kwikform GeoBrace 254 system is used typically with trench sheets or sheet piles to create small to medium
cofferdams and for the construction of manholes, chambers & tanks. The unique twin pin arrangement at the joints
between components provides full moment capacity at any position along the span as well as an integral shear stop for
knee brace props.
Suspended from the trench sheets with restraining chains or supported on brackets, the GeoBrace 254 bracing frames
are able to clear span up to 12.5m in both directions and are fully compatible with the larger GeoBrace 390 and 550
units and the smaller Double Acting Manhole Brace range enabling different sizes of brace to meet at the corners of
rectangular excavations.
Design to EN Standards
The RMD Kwikform GeoBrace 254 system has been designed in accordance with EN14653. To facilitate a simplified
scheme design using established permissible load methods, load performance data in this document is displayed as
an ‘Allowable Working Load’. Should Limit State Design be required, the Design Resistance may be obtained by
multiplying the Allowable working load by 1.5.
European Data Sheet 4
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RMD Kwikform reserves the right to change any specification without giving prior notice.
Date: 19/12/2019 Issue : GB03
GEOBRACE 254 TRENCH LINING SYSTEM
COMPONENTS
Code Description Weight
GBX25405 GeoBrace 254 Extension 500mm 209 kg
GBX25410 GeoBrace 254 Extension 1000mm 262 kg
GBX25415 GeoBrace 254 Extension 1500mm 322 kg
GBX25420 GeoBrace 254 Extension 2000mm 376 kg
GBX25430 GeoBrace 254 Extension 3000mm 489 kg
GBX25440 GeoBrace 254 Extension 4000mm 602 kg
GBX25460 GeoBrace 254 Extension 6000mm 829 kg
GBX25480 GeoBrace 254 Extension 8000mm 1055 kg
GeoBrace 254 Extensions
Used in conjunction with the GeoBrace 254 Ram Unit to support trench sheets or piles in small to medium sized
excavations.
Allowable Bending Moment with no co-existent axial load = 405kNm
Allowable Bending Moment at joint with no co-existent axial load = 405kNm
500mm Extension
1000mm Extension 1500mm Extension
168
308
60 Ø holes
Pin to Pin Dimension Varies (listed in product description) 105 105
267
Plan Lifting point
Elevation
259
Section
295
295
259
(longer lengths similar)
267
308
Integral shear stop C Pin L C Pin L
4 knuckle end 3 knuckle end
European Data Sheet 5
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RMD Kwikform reserves the right to change any specification without giving prior notice.
Date: 19/12/2019 Issue : GB03
GEOBRACE 254 TRENCH LINING SYSTEM
COMPONENTS
GeoBrace 254 Extensions - Section Properties
Lifting Point Stiffener Hole Details
60 Ø lifting point rated for a maximum lift of 95kN
81
Centerline
of GeoBrace
133.5 133.5
500mm Extension
1500mm Extension
2000mm Extension
4000mm, 6000mm & 8000mm Extensions
GeoBrace Lifting Point Stiffener Positions
360 780 ctrs
360 360 1280 ctrs
Section Properties
Area: Gross 137 cm²
Flange Thickness 20.5 mm
Web Thickness 13.0mm
Steel Grade S450 JO
I xx 17500 cm4
I yy 15900 cm4
R xx 11.3 cm
R yy 6.57 cm
Z xx 1310 cm³
Z yy 457 cm³
EI xx 36800 kNm²
EI yy 33400 kNm²
V max xx 600 kN
M max xx 405 kNm
M max xx joint >405 kNm (UC Limits)
M max yy 190 kNm
M max yy joint >190 kNm (UC Limits)
Y Y
X
X
1000mm Extension
500 500
360
3000mm Extension
360 360 1140 ctrs 1140 ctrs
360 360 1140 ctrs 1140 ctrs 1000 ctrs (repeats)
500
European Data Sheet 6
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RMD Kwikform reserves the right to change any specification without giving prior notice.
Date: 19/12/2019 Issue : GB03
GEOBRACE 254 TRENCH LINING SYSTEM
COMPONENTS
GeoBrace 254 Ram Unit 400kN (GBX25400) weight 798kg
Used in conjunction with GeoBrace 390 Extensions to affect fine
length adjustment, pre-loading and load release.
The Ram Unit consists of 2 fabricated steel box sections (an
inner and an outer) with integral lifting & suspension points. The
inner section hydraulically extends by 900mm.
Allowable BM at the overlap fully extended 405kNm
Varies - 2000mm to 2900mm Pin to Pin
168
C Pin L
308
276
260
326
380
60 Ø holes Plan
Elevation
105 105
Corner Joint Connection Intermediate Joint Connection
2 No. GeoBrace 254 Pin 59x335mm
& 8mm R-Clip BZP
(GBX25401 + BVU70001)
1 No. GeoBrace 254 Pin 59x335mm
& 8mm R-Clip BZP
(GBX25401 + BVU70001)
C Pin L
For angles above 180° move pin position to other hole
*
Allowable Axial Load 400kN
European Data Sheet 7
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RMD Kwikform reserves the right to change any specification without giving prior notice.
Date: 19/12/2019 Issue : GB03
GEOBRACE 254 TRENCH LINING SYSTEM
COMPONENTS
GeoBrace 254 Ram Unit Lock Off Plate 25mm (GBX25506) weight 57.1kg
GeoBrace 254 Ram Unit Lock Off Bar (GBX25507) weight 1.36kg
Used in pairs at the rear of the Ram Casing inner and enabling connection of Rapid
Bar Ties and nuts to support and restrain the Lock Off Plate 25mm (GBX25506).
GeoBrace 550 Ram Unit Lock Off Hook (GBX55008) weight 1.12kg
Load tested and certified lifting accessories used in pairs engaged with the holes
along the edge of the Packing Plate to enable connection with lifting slings.
(Secured in place with 5mm R-Clips).
Rated for a maximum Safe Working Load of 180kg
9 No. Ø21 Holes at 100mm ctrs
Section
100
Elevation
300
240
1000
25
100 8mmx30mm chamfer both ends
Elevation Section
2 No. female tapped threads to
suit 15mm Rapid Bar Tie
240 27.5 27.5 295
25
25
122
210
Ø6 Hole
Ø60 Hole
Ø20 Bar
Elevation
Used to pack between the two sections of the GeoBrace 254 Ram Casing where
hydraulic load lock-off is required. Cut the plate accurately to length to suit
measured in-situ Ram Unit extension.
Place the chamfered end of the plate against the cast end plate of the Ram Unit to
avoid fouling of the projecting weld in this location. Both ends of the original plate are
chamfered enabling two shorter packing plates to be cut from one original.
The squareness and flatness of the cut-to-length in both axes must be
controlled within a 1mm tolerance to ensure correct bearing of the cut end
on the end of the Ram Casing.
European Data Sheet 8
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RMD Kwikform reserves the right to change any specification without giving prior notice.
Date: 19/12/2019 Issue : GB03
GEOBRACE 254 TRENCH LINING SYSTEM
GeoBrace 254 Pin 59x335mm o/a (GBX25401) weight 7.1kg
Megashor M20 Skirt Nut (MSX10051) weight 0.08kg
Used when connecting the 254 Brace Megashor Connector to a Megashor
Screw jack to centralise the prop accurately on the GeoBrace 254 web.
8mm R-Clip BZP (BVU70001) weight 0.14kg
Used in conjunction with GeoBrace 254 Pins.
65
13 Ø hole 25
335
59
329
COMPONENTS
GeoBrace Ram Unit Lock Off Assembly
Used with the GeoBrace 254 Ram Unit in applications where a mechanical axial load lock-off is required enabling the
hydraulic cylinder to be de-pressurised.
Code Description Weight
GBX25506 GeoBrace 390 Ram Unit Lock Off Plate 30mm 96.7 kg
GBX25507 GeoBrace 550 Ram Unit Lock Off Bar 3.20 kg
GBX55008 GeoBrace 550 Ram Unit Lock Off Hook 1.12 kg
BTX10150 Rapid Tie Bar 15mm x 1500mm 2.12 kg
BTX10001 Knock On Wing Nut 0.32 kg
GeoBrace 254 Lock-off Bar x 2 placed as near to the ends of the Lock-off Plate as possible
4 No. Rapid Bar tie 15mm x 375mm long (cut from 1500mm long bar) and 4 No. Rapid Bar Tie Knock on Wing Nuts.
Ensure that the ties are engaged through the full thickness of the Lock off Bars
Grade 8.8 pin used in conjunction with 8mm R-Clips for connecting GeoBrace 254
Extensions and Ram Units end to end.
The allowable shear load in a GeoBrace 254 joint made with one or two pins which
is limited by the web of the plate girder = 600kN
The allowable shear across the 8 shear planes of the pin joint in line with the axis
of the GeoBrace 254 = 2410kN
Place plate chamfer here so that the plate seats correctly without fouling weld between Ram Unit inner and knuckle end
European Data Sheet 9
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RMD Kwikform reserves the right to change any specification without giving prior notice.
Date: 19/12/2019 Issue : GB03
GEOBRACE 254 TRENCH LINING SYSTEM
15
55
50
COMPONENTS
GeoBrace 254 Megashor Connector (GBX25403) weight 20.4kg
Used to connect Megashor or Tubeshor 320 props to GeoBrace 254 Extensions. Can
also be used to connect inclined Megashor or Tubeshor 320 props to Geobrace 254
Extensions where the vertical component of the inclined prop load does not exceed
75kN - see bottom of sheet 11 for similar detail.
400
400
300
200
200
67
4 No. 22 Ø CSK holes
Section
Ensure that the welded clamp is placed at the top for horizontal props and at the bottom for raking props.
Axis of
Megashor Knee Brace Connection to Beam
4 No. M20x60 CSK Bolts gr8.8 BZP & M20 Hex Nuts gr8 BZP
Assemble components so that the Megashor Push Pull Prop Pivot contacts the integral Geobrace 254 shear stop
Tubeshor 320 Connection to Beam
Ensure that the Megashor Push Pull Prop Pivot is placed such that the M42 Bolt is vertical to avoid eccentric loading of the GeoBrace 254 web
M42x200 Bolt gr8.8 BZP & M42 Hex Nut gr8 BZP
Maximum load that can be transferred to an integral shear stop
1200kN
Elevation
European Data Sheet 10
© The information contained within these data sheets remain the property of RMD Kwikform and is not to be altered or reproduced without permission.
RMD Kwikform reserves the right to change any specification without giving prior notice.
Date: 19/12/2019 Issue : GB03
GEOBRACE 254 TRENCH LINING SYSTEM
COMPONENTS
GeoBrace Forged Steel Shear Stop 670kN (GBX01000) weight 5.60kg
Used individually to transfer shear generated from ‘knee brace’ props into GeoBrace
254 Extensions.
Maximum allowable shear through each plate 670kN.
Shear Stop Detail
Plan Side Elevation End Elevation
166
120
50
120 166
Weld Dimensions
for faces marked ‘B’
14
Weld Dimensions
for face marked ‘A’
A B
B B
A
B
B
B
15 18
Note: Weld sizes can be pro-rated according to actual load applied.
European Data Sheet 11
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RMD Kwikform reserves the right to change any specification without giving prior notice.
Date: 19/12/2019 Issue : GB03
GEOBRACE 254 TRENCH LINING SYSTEM
A heavier duty unit used to connect inclined Megashor or Tubeshor 320 props to
GeoBrace 254 Extensions where the vertical component of the inclined prop load
does not exceed 75kN. . May also be used to connect horizontal Megashor or
Tubeshor 320 props and knee braces.
75
25
Section
COMPONENTS
490
GeoBrace 254 Inclined Prop Connector (GBX25404) weight 37.8kg
100 100 50 14
5 10
0 10
0
490
300
8 No. 22 Ø CSK holes
Once loosened, clamps can be rotated through 90° to facilitate connection to GeoBrace 254 Extensions
Axis of
GeoBrace
Elevation
Note: Where uplift loads are transferred between the 254 Megashor Connector and welded or bolted Uplift Brackets by the GeoBrace flange as shown, carry out combined load checks on the GeoBrace flange.
Inclined Tubeshor 320 Connection to Beam
M42x200 Bolt gr8.8 BZP & M42 Hex Nut gr8 BZP
7 No. M20x60 CSK Bolts gr8.8 BZP & M20 Hex Nuts gr8 BZP
Assemble components so that the M42 bolt is below the level of the Geobrace 254 centreline to minimise eccentric loading
European Data Sheet 12
© The information contained within these data sheets remain the property of RMD Kwikform and is not to be altered or reproduced without permission.
RMD Kwikform reserves the right to change any specification without giving prior notice.
Date: 19/12/2019 Issue : GB03
GEOBRACE 254 TRENCH LINING SYSTEM
COMPONENTS
GeoBrace 254 Support /Uplift Brackets
Versatile reversible self colour units used either to support the underside of the
GeoBrace 254 Extensions and Ram Unit during use or inverted above the Inclined
Prop Connector Plates to resist the uplift forces induced by a raking prop. Can either
be welded to Sheet Piles or bolted to Concrete Capping Beams or D-Walls.
GeoBrace 254 Support/Uplift Bracket 1 is for general support use whereas Bracket 2
is used locally to provide a heavy duty support where a Tubeshor prop is supported
by the GeoBrace 254 Extensions.
For allowable working loads, bolt and weld connection details refer to sheets
15 & 16.
Code Description Weight
GBX25501 GeoBrace 254 Support/Uplift Bracket 1 12.9 kg
GBX25502 GeoBrace 254 Support/Uplift Bracket 2 18.2 kg
Weld Face Details
Bolt Face Details
Bracket 2
Elevation on Bracket 2
350
350
76
200
26
185
60
115
100
4 No. 26 Ø holes
2 No. 17.5 Ø CSK holes
2 No. 17.5 Ø CSK holes
60
100
185
Weld Face Details
Bolt Face Details
Bracket 1
Elevation on Bracket 1
350
350
60
230
26
135
60
80
100
4 No. 18 Ø holes
2 No. 17.5 Ø CSK holes
2 No. 17.5 Ø CSK holes
60
100
135
Orange text
European Data Sheet 13
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RMD Kwikform reserves the right to change any specification without giving prior notice.
Date: 19/12/2019 Issue : GB03
GEOBRACE 254 TRENCH LINING SYSTEM
COMPONENTS
Option 1
M16x50 Bolts gr8.8 BZP
& M16 Hex nuts gr8
289
Option 2 Option 3
M16x50 CSK Bolts gr8.8
BZP & M16 Hex nuts gr8 350
Option 4
GeoBrace Retention Angles bolted to top plate of
GeoBrace 254 Support/Uplift Bracket.
GeoBrace Retention Angles bolted to underside of
top plate of GeoBrace 254 Support/Uplift Bracket.
GeoBrace 254 Retention Angle (GBX25500) weight 0.58kg Used to prevent the GeoBrace Extensions and Ram Unit from falling from the GeoBrace 254
Support/Uplift Brackets bolted to a concrete surface, the GeoBrace 254 Retention Angle can
be fixed in two different orientations to accommodate additional packing between the
GeoBrace and Sheet Piles where sheet driving tolerance dictates (see options 2 and 4 below).
60
60
8
8
Section
33 34 33
20 60
35 12
17.5 Ø holes 20
Plan
European Data Sheet 14
© The information contained within these data sheets remain the property of RMD Kwikform and is not to be altered or reproduced without permission.
RMD Kwikform reserves the right to change any specification without giving prior notice.
Date: 19/12/2019 Issue : GB03
GEOBRACE 254 TRENCH LINING SYSTEM
COMPONENTS
GeoBrace 254 Uplift Bracket 3 (GBX25503) weight 34.0kg
Used above GeoBrace 254 Inclined Prop Connector Plates to resist larger uplift
forces induced by a raking prop. Can either be welded to Sheet Piles or bolted to
Concrete Capping Beams or D-Walls.
For allowable working loads, bolt and weld connection details refer to sheets
15 & 16.
Bolt Face Details
Elevation
350
80 Ø lifting point
500
75
100
185
6 No. 26 Ø holes
170
170
Orange text
115
15
European Data Sheet 15
© The information contained within these data sheets remain the property of RMD Kwikform and is not to be altered or reproduced without permission.
RMD Kwikform reserves the right to change any specification without giving prior notice.
Date: 19/12/2019 Issue : GB03
GEOBRACE 254 TRENCH LINING SYSTEM
COMPONENTS
Support & Uplift Brackets Bolted to Concrete Structures
Support/Uplift Bracket 1 2 3
AWL (kN) 40 50 90
Number of grade 8.8 ATR anchors 4 4 6
ATR diameter and thread M16 M24 M24
Embedment Depth (mm) 250 250 300
Anchor design calculations have been carried out using the full bracket allowable working load and grade 8.8 all-thread
rod (ATR) fixed into 50N/mm2 cube strength un-cracked concrete using Hilti HIT-HY 200-A Injection Mortar in
accordance with the manufacturer's recommendations.
Un-reinforced concrete has been assumed and no account has been taken of edge or end distances. It is also
assumed that appropriate strength grout is placed between the bracket and the prepared concrete surface.
The design, supply and correct installation of the anchors and grout for the applied loads are the responsibility of the
Customer.
Support/Uplift Brackets 1 & 2 (Support Application)
255
Load anywhere
in this area
Support/Uplift Brackets 1 & 2 (Uplift Application)
255
Load anywhere in this area
Uplift Brackets 3 & 4
255
Load anywhere in this area
European Data Sheet 16
© The information contained within these data sheets remain the property of RMD Kwikform and is not to be altered or reproduced without permission.
RMD Kwikform reserves the right to change any specification without giving prior notice.
Date: 19/12/2019 Issue : GB03
GEOBRACE 254 TRENCH LINING SYSTEM
COMPONENTS
Support & Uplift Brackets Welded to Steel Sheet Piles
Sheet Steel
Grade
Fillet Weld
Number
Bracket 1 2 3
AWL 60 75 125
S235
1 Throat 6.8 9.9 19.1
Leg 9.6 14.0 27.0
2 Throat 3.0 3.0 4.3
Leg 4.2 4.2 6.1
3 Throat None None 7.7
Leg None None 10.9
S275
1 Throat 6.0 8.3 17.0
Leg 8.5 11.7 24.0
2 Throat 3.0 3.0 3.8
Leg 4.2 4.2 5.4
3 Throat None None 6.5
Leg None None 9.2
S355
1 Throat 5.6 7.4 15.8
Leg 7.9 10.5 22.3
2 Throat 3.0 3.0 3.6
Leg 4.2 4.2 5.1
3 Throat None None 5.2
Leg None None 7.4
1
2 2
3
Support/Uplift Brackets 1 & 2 (Support Application)
255
Load anywhere in this area
1
2 2
3
Support/Uplift Brackets 1 & 2 (Uplift Application)
255
Load anywhere in this area
Uplift Bracket 3
255
Load anywhere in this area
2 2
3
1
Weld Dimensions
Leg
Weld sizes may be pro-rated according to applied load/AWL for the bracket however we recommend a minimum site
weld throat dimension of 3mm. It is the Customer’s responsibility to adjust the weld size in-situ to suit steel thickness,
site conditions and welding methods. The sheet pile shall be at least equal in thickness to the weld throat dimension.
It is the Customer's responsibility to ensure that the sheet piles are not locally overstressed by bracket forces or weld
connections and to weld the clutches between sheets or add shear plates as needed to prevent the ejection of
individual sheets by uplift forces.
European Data Sheet 17
© The information contained within these data sheets remain the property of RMD Kwikform and is not to be altered or reproduced without permission.
RMD Kwikform reserves the right to change any specification without giving prior notice.
Date: 19/12/2019 Issue : GB03
GEOBRACE 254 TRENCH LINING SYSTEM
Used to connect a Double Acting Manhole Brace Leg A, B or C to the end of a
GeoBrace 254 Extension or GeoBrace 254 Ram Unit 400kN.
COMPONENTS
GeoBrace-DAMB Adapter 1 (GBX25491) weight 30.0kg
200
422
148 16
8
120
306
GeoBrace-DAMB Adapter 2 (GBX25492) weight 36.1kg
120
210
63.5 Ø holes
42 Ø hole
Side View End View
30 20
205
427
148
168
150
306
170
210
63.5 Ø holes
42 Ø hole
Side View End View
20 20 20
GeoBrace 254 Pin 59x335mm & 8mm R-Clip BZP x 2 (GBX25401 + BVU70001)
Manhole Brace Tee Pin 40mm & R-Clip x 100mm (HFU10000 + VAU10043)
Manhole Brace Tee Pin 40mm & R-Clip x 100mm (HFU10000 + VAU10043)
GeoBrace 254 Pin 59x335mm & 8mm R-Clip BZP x 2 (GBX25401 + BVU70001)
Used to connect a Double Acting Manhole Brace Leg A, B or C to the end of a
GeoBrace 254 Extension or GeoBrace 254 Ram Unit 400kN.
European Data Sheet 18
© The information contained within these data sheets remain the property of RMD Kwikform and is not to be altered or reproduced without permission.
RMD Kwikform reserves the right to change any specification without giving prior notice.
Date: 19/12/2019 Issue : GB03
GEOBRACE 254 TRENCH LINING SYSTEM
COMPONENTS
GeoBrace-DAMB Adapter 3 (GBX25493) weight 33.4kg
GeoBrace-DAMB Adapter 4 (GBX25494) weight 39.3kg
210
432
150 16
8
150
306
150
210
63.5 Ø holes
42 Ø hole
Side View End View
30 20
207
429
150
168
180
306
200
210
63.5 Ø holes
42 Ø hole
Side View End View
20 20 20
Used to connect a Double Acting Manhole Brace Leg D, E or F to the end of a
GeoBrace 254 Extension or GeoBrace 254 Ram Unit 400kN.
GeoBrace 254 Pin 59x335mm & 8mm R-Clip BZP x 2 (GBX25401 + BVU70001)
Manhole Brace Tee Pin 40mm & R-Clip x 100mm (HFU10000 + VAU10043)
Used to connect a Double Acting Manhole Brace Leg D, E or F to the end of a
GeoBrace 254 Extension or GeoBrace 254 Ram Unit 400kN.
GeoBrace 254 Pin 59x335mm & 8mm R-Clip BZP x 2 (GBX25401 + BVU70001)
Manhole Brace Tee Pin 40mm & R-Clip x 100mm (HFU10000 + VAU10043)
European Data Sheet 19
© The information contained within these data sheets remain the property of RMD Kwikform and is not to be altered or reproduced without permission.
RMD Kwikform reserves the right to change any specification without giving prior notice.
Date: 19/12/2019 Issue : GB03
GEOBRACE 254 TRENCH LINING SYSTEM
COMPONENTS
4 Leg Lifting Chains
Used for lifting complete 254 Brace frame assemblies or when unloading individual leg assembles. SWL 6.7 tonnes
Code Description Weight
VAU10019 4 Leg Chains 3mtr - SWL 6.7TON 10mm 30.0 kg
VAU10020 4 Leg Chains 5mtr - SWL 6.7TON 10mm 60.0 kg
HD Restraint Chains - Blue (SWL - 4.7t)
Code Description Weight
VAU10012 RChain - 4.7T Shackle-Shackle 2500/13 9.2 kg
VAU10013 RChain - 4.7T Shackle-Hook 2500/13 10.6 kg
Double Acting Bucket Pump (VAU10002) weight 18.0kg
A double acting hydraulic pump used to extend or retract each of the 254 Brace leg assemblies in turn.
Note: The pump is normally supplied with shoring fluid within the tank. Supplementary
shoring fluid is available in litre bottles for use with the pump. Mixing instructions for the
ratio of shoring fluid to water will be dependent on temperature conditions and are
specified on the shoring fluid packaging.
Hydraulic Hoses For Use With Double Acting Bucket Pump
Code Description Weight
VAU18001 Shoring Fluid Concentrate - 1 Litre 1.20 kg
Code Description Weight
VAU10005 1/4" Hose M/F ISO B, 3.0m - 350bar 0.8 kg
VAU10006 1/4" Hose M/F ISO B, 6.0m - 350bar 1.6 kg
VAU10007 1/4” 3-Way Bridle Hose Set 6.0m - 350bar 4.0 kg
It is the Customer’s responsibility to provide longer and higher load capacity lifting chains if large assemblies of equipment are to be moved.
European Data Sheet 20
© The information contained within these data sheets remain the property of RMD Kwikform and is not to be altered or reproduced without permission.
RMD Kwikform reserves the right to change any specification without giving prior notice.
Date: 19/12/2019 Issue : GB03
GEOBRACE 254 TRENCH LINING SYSTEM
DESIGN DATA
Allowable Working Loads - Simply Supported Beams (Sheet to Sheet)
0
Allo
wab
le U
DL
(kN
/m)
Span of GeoBrace 254 Beam - Sheet to Sheet (m)
8
Mid
span
Ela
stic
Def
lect
ion
(mm
)
0
200
400
Axial Loads / kN
Graph 254/1
20
40
60
80
100
120
140
160
180
0
40
60
80
100
120
140
160
180
10 12 7 13 9 11
20
6 5
European Data Sheet 21
© The information contained within these data sheets remain the property of RMD Kwikform and is not to be altered or reproduced without permission.
RMD Kwikform reserves the right to change any specification without giving prior notice.
Date: 19/12/2019 Issue : GB03
GEOBRACE 254 TRENCH LINING SYSTEM
DESIGN DATA
Allowable Working Loads - Simply Supported Beams (Pin to Pin)
0
Allo
wab
le U
DL
(kN
/m)
Span of GeoBrace 254 Beam - Pin to Pin (m)
7 8 9 10 11 12
Mid
span
Ela
stic
Def
lect
ion
(mm
)
0
Graph 254/2
20
40
60
80
100
120
140
160
180
60
80
100
120
140
160
180
0
200
400
Axial Loads / kN
40
20
6 5 4
200
220
200
220
European Data Sheet 22
© The information contained within these data sheets remain the property of RMD Kwikform and is not to be altered or reproduced without permission.
RMD Kwikform reserves the right to change any specification without giving prior notice.
Date: 19/12/2019 Issue : GB03
GEOBRACE 254 TRENCH LINING SYSTEM
DESIGN DATA
0
500
0 50 100 150 200 250
100
Bending Moment (kNm)
She
ar F
orce
(kN
)
Graph 254/3
400
300
200
300 350 400 450
Design of Continuous Beams with or Without Knee Braces
It is not possible to produce graphs covering the design of these applications as
there are too many variables; carry out analysis on a case by case basis. Care is
needed to correctly consider axial compression arising as a result of connection with
braces joining at the excavation corners (A) and knee brace props joining the 254
Brace at angles (B). Compression loads are carried by the GeoBrace flanges and
joint pins remote from the supported wall. Critical points for consideration occur at
point B and where props intersect the GeoBrace 254 (C). In these locations hogging
bending moments also result in compression loads in the inner flanges which are
additive to induced axial loads. In the mid-span (D), sagging bending moments
place the inner flanges in tension which are reduced by the magnitude of any
induced axial load. Deflection in the mid-span will also move the line of induced axial
load towards the neutral axis of the GeoBrace section. For large excavations where
supported perimeter walls have adequate in-plane stiffness, such as in D-wall or
secant pile construction, it may be possible to shed axial loads from the GeoBrace
254 sections into the supported walls near the corners of the excavation by the use
of substantial shear stubs welded to the wall-side flange of the GeoBrace which
project and are grouted into purpose designed pockets cut into the perimeter wall.
This allows fuller use of the allowable GeoBrace section bending moment in areas
of hogging moment towards the central part of the excavation.
Working Load Envelope - Combined Axial / Bending / Shear
A
B
C
D
Knee Brace
Cross Prop
Mid Span
Supported Wall
0 500
1000
1500
A
xial
Loa
ds /
kN
European Data Sheet 23
© The information contained within these data sheets remain the property of RMD Kwikform and is not to be altered or reproduced without permission.
RMD Kwikform reserves the right to change any specification without giving prior notice.
Date: 19/12/2019 Issue : GB03
GEOBRACE 254 TRENCH LINING SYSTEM
0 200 400 600 800 1000 1200
DESIGN DATA
Interaction at Supports - Combined Axial / Bending / Prop Load Graph 254/4
Interaction at Supports - Combined Axial / Bending / Shear Graph 254/5
0 100 50 150 200 250
400
300
200
100
0
Ben
ding
Mom
ent (
kNm
)
Shear Force (kN)
Prop Load (kN)
400
300
200
100
0
Zone A values have been limited due to the partial lateral and rotational restraint of the plate girder compression flange
in accordance with BS5975 table K1 and for values of shear that do not exceed 55% of the prop load.
Separate calculations are required to access Zone B values in which detailed consideration is given to the lateral and
rotational restraint of the girder compression flange in order to reduce the effective length of the plate girder web.
Zone A Zone B
Zone A Zone B
300 500
500
1000
1500
0 Axial Loads / kN
500
1000
1500
0 Axial Loads / kN
Ben
ding
Mom
ent (
kNm
)
350 400 450
European Data Sheet 24
© The information contained within these data sheets remain the property of RMD Kwikform and is not to be altered or reproduced without permission.
RMD Kwikform reserves the right to change any specification without giving prior notice.
Date: 19/12/2019 Issue : GB03
GEOBRACE 254 TRENCH LINING SYSTEM
DESIGN DATA
Table 1 - Component Makeup for a GeoBrace 254 Assembly with Ram Unit
Note: All legs are supplied fully assembled with 1 extra pin & R clip at the end to connect at the corner. If connecting
end to end as parallel walers rather than a square or rectangular frame 1 extra pin & R clip will be required
per leg.
In order to minimise initial deflection caused by pin hole tolerances assemble the brace with the longest
possible extensions in the middle and position shorter lengths at the ends. When assembling braces in
accordance with RMDK drawings, follow the makeup shown.
Leg
Type Kit Code
Sheet to Sheet
Dimension (mm) GBX25400 GBX25405 GBX25410 GBX25415 GBX25420 GBX25430 GBX24401 BVU70001
Weight
(kg)
Pin Hole
Deflection
(mm)
GBX25440 GBX25460 GBX25480
min max Ram Unit 500mm
Extension
1000mm
Extension
1500mm
Extension
2000mm
Extension
3000mm
Extension
59x335mm
Pin
8mm
R-Clip
4000mm
Extension
6000mm
Extension
8000mm
Extension
1 KTU16001 2476 3376 1 1 1 805 9
2 KTU16002 2976 3876 1 1 3 3 1030 13
3 KTU16003 3476 4376 1 1 3 3 1080 16
4 KTU16004 3976 4876 1 1 3 3 1140 19
5 KTU16005 4476 5376 1 1 3 3 1200 23
6 KTU16006 4976 5876 1 1 1 5 5 1420 34
7 KTU16007 5476 6376 1 1 3 3 1310 29
8 KTU16008 5976 6876 1 1 1 5 5 1530 40
9 KTU16009 6476 7376 1 3 3 1420 33 1
10 KTU16010 6976 7876 1 1 1 5 5 1650 42
11 KTU16011 7476 8376 1 1 5 5 1700 41 1
12 KTU16012 7976 8876 1 1 5 5 1760 44 1
13 KTU16013 8476 9376 1 3 3 1650 38 1
14 KTU16014 8976 9876 1 1 1 7 7 2030 50 1
15 KTU16015 9476 10376 1 1 5 5 1930 44 1
16 KTU16016 9976 10876 1 1 5 5 1990 60 1
17 KTU16017 10476 11376 1 3 3 1870 41 1
18 KTU16018 10976 11876 1 1 1 7 7 2260 50 1
19 KTU16019 11476 12376 1 1 5 5 2150 46 1
20 KTU16020 11976 12876 1 1 5 5 2210 48 1
Type Pin to Pin (mm) Clear Internal (mm)
DAMB (A-C) 172 382
DAMB (D-F) 202 442
GeoBrace 254 476 652
GeoBrace 390 720 920
GeoBrace 550 1050 1240
To obtain the pin to pin, or clear internal dimensions for the GeoBrace 254 leg from the sheet to sheet dimension,
subtract the following offsets:
Sheet to Sheet
Pin to Pin
Clear Internal
Table 2 - Dimension Conversions
Note: Table 1 sheet to sheet dimensions assume that GeoBrace 254 legs are used on both adjoining sides of the
excavation. If using any other size of GeoBrace legs or DAMB leg assemblies on the adjoining sides, calculate the
GeoBrace 254 pin to pin dimension by subtracting 476mm from the sheet to sheet dimensions in Table 1 and add the
relevant values from Table 2 to find the new sheet to sheet dimensions.
European Data Sheet 25
© The information contained within these data sheets remain the property of RMD Kwikform and is not to be altered or reproduced without permission.
RMD Kwikform reserves the right to change any specification without giving prior notice.
Date: 19/12/2019 Issue : GB03
GEOBRACE 254 TRENCH LINING SYSTEM
Contact Details: International Offices
Europe
Head Office – United Kingdom
RMD Kwikform, Brickyard Road,
Aldridge, Walsall WS9 8BW, UK.
Tel: +44 1922 743743
Email: [email protected]
Ireland
RMD Kwikform,
Ballyboggan Road,
Finglas, Dublin 11, Ireland.
Tel: +353 1 830 2500
Email: [email protected]
South America
Chile
RMD Kwikform,
La Estera 811,
Parque Industrial Ville Grande,
Lampa, Santiago, Chile.
Tel: +56 2 747 1414
Email: [email protected]
America
USA
9351 Grant Street,
Suite 200,
Thornton, Colorado, 80229
Tel: +1 303 252 7000
Email: [email protected]
South Africa
RMD Kwikform South Africa (Pty) Ltd
26 Venturi Crescent, Hennopspark X5,
Pretoria, South Africa
Tel: +27 (0)12 681 0360
Email: [email protected]
Asia Pacific
Australia
RMD (Australia) Pty. Ltd.
PO Box 169, Melrose Park,
South Australia, 5039.
Tel: +61 8 8179 8200
Email: [email protected]
Hong Kong
RMD Kwikform,
22/F Excel Center,
483A Castle Peak Road,
Cheung Sha Wan, Kowloon, Hong Kong.
Tel: +852 2415 4882
Email: [email protected]
New Zealand
RMD (New Zealand) Ltd.
PO Box 22-316, 101-105 Station Road,
Otahuhu, Auckland 6, New Zealand.
Tel: +64 9 276 5955
Email: [email protected]
Philippines
RMD Kwikform,
Units 2406-2409,
Raffles Corporate Center,
F. Ortigas Jr. Road,
Ortigas Center,
Pasig City,
Philippines.
Tel: +632 696 7635
Email: [email protected]
Guam
RMD Kwikform.
321 East Harmon Industrial Park Road,
Unit F, Tamuning, Guam.
Tel: +671 647 7635
Email: [email protected]
Middle East
UAE
RMD Kwikform,
PO Box 5801, Sharjah,
United Arab Emirates.
Tel: +971 6 5534173
Email: [email protected]
Qatar
RMD Kwikform,
PO Box 405, Doha, Qatar.
Tel: +974 467 5925
Email: [email protected]
Bahrain
RMD Kwikform,
C/O CGH ,
Building 829, Flat 11,
Block 408, Sanabis,
Kingdom of Bahrain.
Tel: +973 1738 2724
Email: [email protected]
Oman
RMD Kwikform Oman LLC
PO Box 889
Post Code 115
Muscat
Sultanate of Oman
Tel: +968 2463 6776
Email: [email protected]
India
RMD Kwikform,
No.28/2, 1st Floor, AMG Towers,
Lawyer Jagannathan Street, G.S.T. Road,
Alandhur, Chennai—60016, Tamil Nadu, India
Tel: +91 44 4915 3333
Email: [email protected]
Saudi Arabia
PO Box 921, Entrance 1, North 2nd Floor, Room 4A
Gulf Star Building, Prince Turki Abdulaziz Street,
Comiche, Al Khobar 31952, Kingdom of Saudi Arabia
Tel: +966 13 896 8665
Email: [email protected]