MBrace™
Composite Strengthening System
An Advanced Technique in Retrofitting
MBT (Singapore) Pte Ltd
2
IntroductionCollapse of Hotel New World
15th March 1986
UnderdesignShoddy WorkmanshipCorner Cutting
3
Introduction921Taiwan Earthquake
Major Earthquake with magnitude of 7.6 on the Richter scale
4
IntroductionCoverage of Presentation
• Why Strengthening?
• Conventional Strengthening Techniques
• MBraceTM Composite Strengthening System– Features & Benefits– Areas and Ways of application– Installation Procedure– Basic Design Understanding– Research and Testing– Some Completed Projects
5
IntroductionWhy Strengthening?
ERRORS IN DESIGN STAGE
• Design Errors– Loading Specification– Material Specification– Change of Code
• Drafting Errors
• Assumption Errors
SERVICE STAGE
• Overloading
• Change of use
• Upgrading• Environmental factors
• Earthquake/Seismic forces
• Lack of regular maintenance
• Concrete deterioration
• Bomb blast
CONSTRUCTION ERRORS
• Poor Construction Practices – Insufficient compaction– Inadequate curing time
• Poor Workmanship
• Lack of proper supervision
6
Construction error - Missing confinement steel
Corrosion of reinforcement
steel
Crack
IntroductionWhy Strengthening?
Steel reinforcement buckled dueto seismic forces
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IntroductionSome of the Traditional Strengthening Techniques
STEEL PLATE BONDINGSTEEL PLATE BONDINGJACKETING/ENLARGEMENTJACKETING/ENLARGEMENTEXTERNAL POST-TENSIONINGEXTERNAL POST-TENSIONING
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Construction Chemicals
07 / 2006 – Klaus Kamhub
er
Strengthen StabilizeRepairStrategy?
LoadCarrying
Type?Passive Active
Strengthening Process
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Construction Chemicals
07 / 2006 – Klaus Kamhub
er
Passive and Active Design
Passive Strengthening
Active Strengthening
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Strengthening Process
RepairStrategy
Technique ?
Enlargements & Overlays
Composite Construction
Post-Tensioning
External Grouting
Internal Grouting
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STEEL PLATE BONDING• Disadvantages
– Bulky set-up– Labour and Time intensive– Difficult to align and install– Design needs to cater for weight
of steel plates– Requires heavy equipment– Steel plates need to be tailor
made– Drilling and bolting cause further
distress
Some of the Traditional Strengthening Techniques
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Some of the Traditional Strengthening Techniques
JACKETING• Disadvantages
– Bulky set-up with massive formwork
– Labour and Time intensive– Fairly destructive– Improper bond between new and
existing concrete– Different shrinkage rate of old
and new concrete – Offset from original alignment
Existing profileEnlarged profile
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Construction Chemicals
07 / 2006 – Klaus Kamhub
er
CompressiveUpgrade
StrengtheningTechniques
before...
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Construction Chemicals
07 / 2006 – Klaus Kamhub
er
CompressiveUpgrade
StrengtheningTechniques
...after
3
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Construction Chemicals
07 / 2006 – Klaus Kamhub
er
Flexural Upgrade
StrengtheningTechniques
New reinforcement
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Some of the Traditional Strengthening Techniques
EXTERNAL POST-TENSIONING• Disadvantages
– Labour and Time intensive– Requires special equipment– Requires specialised skills– Requires easy access to work area– Fairly destructive– Uneven surface finish – Offset from original alignment– May not be aesthetically acceptable
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An Advanced Technique in Retrofitting
MBrace™Composite Strengthening System
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Fiber Reinforcement Technology
25 years in AerospaceLow weightHigh tensile strengthNon corrosiveEasy installation
19
MBraceTM Composite Strengthening SystemHistory of Composite Strengthening
• Used in the aerospace and manufacturing industry for 25 years
• Used in structural strengthening for more than 10 years.
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Strengthening Application
Change in useConstruction or design defectsCode changesSeismic retrofit
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FiberReinforced
Polymer
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Types of Fiber
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MBraceTM Composite Strengthening SystemIntroduction to Composite Strengthening
Fibre
Polymer Matrix
MBraceTM Composite Strengthening System
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MBraceTM Composite Strengthening System
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MBrace Composite Strengthening System
MBrace PrimerMBrace PuttyMBrace SaturantMBrace Carbon FiberMBrace Topcoat (optional)
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Construction Chemicals
07 / 2006 – Klaus Kamhub
er
Carbon Fiber
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Construction Chemicals
07 / 2006 – Klaus Kamhub
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Fiber Material Behaviour
0
1000
2000
3000
4000
Tensile Strain (in./in.)
Tens
ile S
tres
s (M
Pa)
Carbon
Aramid
Glass
0.000 0.010 0.020 0.030 0.040 0.050 0.060
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Construction Chemicals
07 / 2006 – Klaus Kamhub
er
Primer, Putty & Saturant
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Construction Chemicals
07 / 2006 – Klaus Kamhub
er
Mixing
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Construction Chemicals
07 / 2006 – Klaus Kamhub
er
Tools
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Construction Chemicals
07 / 2006 – Klaus Kamhub
er
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Construction Chemicals
07 / 2006 – Klaus Kamhub
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1. Roll MBrace Primer1. Roll MBrace Primer
2. Level Surfaces with 2. Level Surfaces with MBrace PuttyMBrace Putty
3. Apply First Coat of 3. Apply First Coat of MBrace SaturantMBrace Saturant
Easy InstallationEasy Installation
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Construction Chemicals
07 / 2006 – Klaus Kamhub
er
4. Apply MBrace Fiber 4. Apply MBrace Fiber ReinforcementReinforcement
6. Apply Optional 6. Apply Optional MBrace TopcoatMBrace Topcoat
5. Apply Second Coat 5. Apply Second Coat of MBrace Saturantof MBrace Saturant
Easy InstallationEasy Installation
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Construction Chemicals
07 / 2006 – Klaus Kamhub
er
Design Thickness 0.0065 in. Tensile Strength 3.3 K/in. Tensile Strength for Design
505 Ksi
Tensile Modulus for Design
33 Msi
Ultimate Elongation 1.5%
Physical Properties of CF Sheet
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Construction Chemicals
07 / 2006 – Klaus Kamhub
er
MBrace vs. Conventional Upgrade
Bonded Steel Plate 0.5 cm bolted plate 110 kg dead load Placed by lift truck
Member Enlargement 2 #20 rebar, 10 cm grout 1,125 kg dead load Formed and cured
FRP Sheet 1 layer resin bonded 2.7 kg dead load Placed by hand
Simply supported beam; 35% upgrade in live load
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Construction Chemicals
07 / 2006 – Klaus Kamhub
er
FRP Repair StrategiesDuctile behavior
Deflection
Load Beam with Composite
Original beam
BC
A D
SL
SL
UL
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Principle of MBraceTM Strengthening
Confinement Detailing - Circular Column
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Principle of MBraceTM Strengthening
Confinement Detailing - Square & Rectangular Column
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MBrace Composite Strengthening System Final View
Steel-plate Bonding Jacketing MBraceTM System
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MBraceTM Composite Strengthening SystemStrengthening Philosophy in MBraceTM
3 Key Features in the Two-Part Polymer System…
… MBraceTM Primer & MBraceTM Saturant
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MBraceTM Composite Strengthening SystemStrengthening Philosophy in MBraceTM
#1 Low Viscosity MBraceTM Primer to penetrate micro-cavities in concrete substrate
Anchoring into concreteStronger adhesion bond
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MBraceTM Composite Strengthening SystemStrengthening Philosophy in MBraceTM
#2 Compatible MBraceTM Primer and MBraceTM Saturant to form effective polymer matrix
Fully integratedProper load transfer to fibres Concrete Failure
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MBraceTM Composite Strengthening SystemStrengthening Philosophy in MBraceTM
#3 Coloured MBraceTM Saturant to indicate complete impregnation of fibres with the saturant
Fully impregnatedProper protection to fibres
Proper distribution of loads
Carbon Fibre
E-Glass Fibre
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MBraceTM Composite Strengthening SystemIntroduction to the MBraceTM
MBraceTM Fibre Reinforcement System
E-Glass Fibre Carbon Fibre
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Buildings
• RC Beams, Columns and Slabs
• RC and Masonry WallsBridges
• Beams, Pier and Deck SlabsSilos, Chimneys and TanksPipes and TunnelsMarine Structures
• Jetties and Wharves
MBraceTM Composite Strengthening SystemAreas of Application with MBraceTM
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MBraceTM Composite Strengthening SystemWall Strengthening with MBraceTM
Strengthening of RC and Masonry Walls to enhance:-
Flexural CapacityShear CapacityBlast Resistance
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MBraceTM Composite Strengthening SystemBlast Resistance with MBraceTM
BLAST
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MBraceTM Composite Strengthening SystemBlast Resistance with MBraceTM
BLAST
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MBraceTM Composite Strengthening SystemBlast Resistance with MBraceTM
BLAST
Wall without MBraceTM
Failure at 1.5 psi, 108ms
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MBraceTM Composite Strengthening SystemBlast Resistance with MBraceTM
BLAST
Wall without MBraceTM
NO Failure at 12 psi, 80ms
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Increases flexural capacity of flexural elementsIncreases shear capacity of beams, columns and wallsIncreases vertical load-bearing capacity of columnsIncreases ductility under cyclic loadingsIncreases seismic resistanceResistance against corrosionResistance to crack propagationResistance to bomb blast
MBraceTM Composite Strengthening SystemCharacteristics of MBraceTM
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High Strength-to-Weight RatioEasy to install and non-destructiveLow labour and less downtimeDoes not require heavy and special equipmentCan be used in space-constrained areasFlexible and able to adapt to various shapesNo off-setting from original alignmentDurable, non-corrosive and able to resist corrosionNo maintenance
MBraceTM Composite Strengthening SystemAdvantages of MBraceTM
E-Glass Fibre
Carbon Fibre
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MBraceTM Composite Strengthening SystemComposite Performance of MBraceTM
Properties
Type of FibreTensile Strength(min. ASTM D3039)
Tensile Modulus(min. ASTM D3039)
Ultimate Strain(min. ASTM D3039)
Thickness/Layer
MBraceTM EG900
E-Glass
480 N/mm2
28 000 N/mm2
2.0
1.10 mm
MBraceTM CF130
Carbon
30000 N/mm2
2300 G N/mm2
1.5
0.165 mm
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Installation Procedure
MBrace™Composite Strengthening System
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MBraceTM Composite Strengthening SystemInstallation Procedure of MBraceTM
Repair Concrete Substrate Epoxy to cracks > 0.30mm
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MBraceTM Composite Strengthening SystemInstallation Procedure of MBraceTM
Corner rounded to radius 20mm
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MBraceTM Composite Strengthening SystemInstallation Procedure of MBraceTM
Surface Preparation
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Surface Preparation
• Remove existing finishes to expose bare concrete surface
• Concrete surface to be smoothen to give an even surface with no voids or potholes
• Chamfer edges and corners to a radius of approximately 20mm
MBraceTM Composite Strengthening SystemInstallation Procedure of MBraceTM
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Application of Primer• Mix MBraceTM Primer
Part A and Part B using a mechanical mixer for between 1-2 minutes
• Apply MBraceTM Primer to prepared concrete surface
MBraceTM Composite Strengthening SystemInstallation Procedure of MBraceTM
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MBraceTM Composite Strengthening SystemInstallation Procedure of MBraceTM
Prime surface with MBraceTM Primer
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Material Preparation• Fibre sheets are pre-
cut according to the requirement as per structural drawings.
• Mix MBraceTM Saturant Part A and Part B using a mechanical mixer for between 1-2 minutes
MBraceTM Composite Strengthening SystemInstallation Procedure of MBraceTM
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Saturation of Fibre• Saturate MBraceTM Fibre
Sheets with MBraceTM Saturant using a roller or saturator
MBraceTM Composite Strengthening SystemInstallation Procedure of MBraceTM
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Installation of MBraceTM
• Install pre-saturated MBraceTM Fibre Sheets onto primed concrete surface
MBraceTM Composite Strengthening SystemInstallation Procedure of MBraceTM
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MBraceTM Installed• Column strengthened using
MBraceTM
MBraceTM Composite Strengthening SystemInstallation Procedure of MBraceTM
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Broadcast sand• Broadcasting sand onto
strengthened column to form keys for application of finishes
MBraceTM Composite Strengthening SystemInstallation Procedure of MBraceTM
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Finishes• Apply desired finishes to
the strengthened column
MBraceTM Composite Strengthening SystemInstallation Procedure of MBraceTM
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Completion• Completed strengthening
work
MBraceTM Composite Strengthening SystemInstallation Procedure of MBraceTM
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Standard Detailing
MBrace™Composite Strengthening System
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MBraceTM Composite Strengthening SystemTypical MBraceTM Detailing
Flexural Strengthening with MBraceTM
Shear Strengthening with MBraceTM
Axial Strengthening with MBraceTM
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MBraceTM Composite Strengthening SystemShear Strengthening Design
Shear Detailing - Various Configurations• Strips
• Continuous
• Inclined
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MBraceTM Composite Strengthening SystemStandard Detailing of MBraceTM
Shear Detailing - Wrapping Schemes
Full Wrap “U-wrap” Two sides
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MBraceTM Composite Strengthening SystemStandard Detailing of MBraceTM
Effect of Wrapping Scheme
Shea
r Res
ista
nce,
Vf (k
N)
Cross-Sectional Area of FRP, Af(mm)
Fully Wrap
U-Wrap
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MBraceTM Composite Strengthening SystemStandard Detailing of MBraceTM
Anchorage - Avoid using mechanical fasteners
F
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MBraceTM Composite Strengthening SystemStandard Detailing of MBraceTM
Anchorage - Avoid using turning radii
FRP not loaded
TFRP
loaded
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MBraceTM Composite Strengthening SystemStandard Detailing of MBraceTM
Anchorage - MBraceTM Anchorage System
A
AA-A
MBraceTM
Anchorage System MBraceTM Saturant
Fibre Anchor
50mm
10
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MBraceTM Composite Strengthening SystemStandard Detailing of MBraceTM
Flexure Detailing - Wrapping Schemes
A
A
A-A
100mm
100mm
100mm
B
B
B-B100mm
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MBraceTM Composite Strengthening SystemStandard Detailing of MBraceTM
Flexure Detailing - Cutoff Points
M=Mu
M=0
ldf
100100100
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MBraceTM Composite Strengthening SystemStandard Detailing of MBraceTM
Confinement Detailing - Circular Column
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MBraceTM Composite Strengthening SystemStandard Detailing of MBraceTM
Confinement Detailing - Square & Rectangular Column
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MBraceTM Composite Strengthening SystemStandard Detailing of MBraceTM
Effect of Confinement
Axi
al C
ompr
essi
ve S
tres
s
Plain Concrete
FRP-confined Concrete
Axial Strain, c cc
ffd
Ei
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Strengthening Design
MBrace™Composite Strengthening System
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Research & Development
MBrace™Composite Strengthening System
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MBraceTM Composite Strengthening SystemMaterial Testing
Tensile Properties of MBraceTM - ASTM D3039:95Shear Bond Strength of MBraceTM - ASTM C482:81Adhesion Pull-Out Strength of MBraceTM - ASTM D4541:93 (adopted)
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MBraceTM Composite Strengthening SystemColumn Testing
Design Ultimate Load = 905 kNUltimate Failure Load = 1080 kN
Design Ultimate Load = 1176 kNUltimate Failure Load = 1446 kN
Control Specimen Strengthened Specimen
>30% Increase In Axial Capacity
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MBraceTM Composite Strengthening SystemBeam Testing
Beam strengthened with MBraceTM showed increase in shear
capacityControl B1
Strengthened B2 Anchored B3
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MBraceTM Composite Strengthening SystemBeam Testing
500
0 5 10 15 20 250
100
200
300
400
Load
(kN
)
Mid-Span Deflection (mm)
Beam B1
Beam B2
Beam B3
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MBraceTM Composite Strengthening SystemSlab Testing
Cantilever end-span of RC bridge deck slab was tested to failure
Failed deck slab was repaired and strengthened using MBraceTM
Strengthened deck slab was loaded and no sign of failure was shown when the unstrengthened failure load was reached
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Tensile Strength Test FRP Carbon CF 130 atMaterial & Structure Lab. Civil Eng. Institut Technology Bandung West Java
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New Innovation & Development
MBrace™Composite Strengthening System
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MBraceTM Innovation: MBarTM System
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MBraceTM Composite Strengthening SystemSilo, USA
Silo was strengthened with MBraceTM to increase its load-bearing capacity and enhance against hoop stressesStrengthening work was conducted with no disruption to the daily operation of the silo
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MBraceTM Composite Strengthening SystemSilo, USA
Grooves were formed on concrete substrate for the installation of MBarTM
Workers cutting grooves on concrete substrate
View of Silo with prepared concrete substrate
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MBraceTM Composite Strengthening SystemSilo, USA
MBarTM installed onto concrete substrate of Silo MBarTM installed and
MBarTM Putty applied tolevel with surface
Groove for installing MBarTM
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MBarTM FRP ReinforcementsHong Kong LCC206
Fabrication of reinforcement cages for D-wall using GFRP rods
GFRP Ø32
GFRP Stirrups
Stiffening frame
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Hong Kong LCC206 (Cont’d)
Fitting GFRP reinforcement cage to steel frame to be lifted to vertical position
Stiffening frame
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Hong Kong LCC206 (Cont’d)
GFRP cage lifted by crane and lowered into excavated hole for construction of D-wall
16m long GFRP Reinforcement Cage
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MBarTM FRP ReinforcementsDelhi Metro, India
GFRP was used as reinforcement to replace conventional steel for the soft-eye.
GFRP is ideal for TBM to cut through easily without damaging it.
Less labourLess downtimeLess work constraintsLower overall project cost
Delhi Metro
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MBarTM FRP ReinforcementsC822 Circleline Project, Singapore
MBarTM GFRP rods used as temporary reinforcement at soft-eye region of diaphragm wall for link sewer tunnelling interfaceMBarTM GFRP rods chosen due to:Easy to cut by TBMLight-weightEasy to handleLess construction timeHigh tensile strength
Soft-eye region to be reinforced with MBarTM GFRP
rods
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Install of MBarTM GFRP rods to replace conventional steel reinforcements at soft-eye region
Steel tie used to secure MBarTM
MBarTM FRP ReinforcementsC822 Circleline Project, Singapore
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Sutherland Metro
CFRP rods used as soil nails to create steep-sided cuttings for new railway in an urban area.
CFRP rods chosen due to:High resistant to wide variety of aggressive environments.Light-weight; 3.5% of the weight of an equivalent strength steel rodsEasy to handleReduced construction timeReduced costs of about 10%High tensile strength
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Sutherland Metro (Cont’d)
Surcharge
Maximum required restoring force
Active Passive
Soil Nails
121
114mm Drilled Hole
200mm thk Vegetation Layer
Sutherland Metro (Cont’d)
Cementitious Grout (W/C:0.45)Min. Strength 35N/mm2 at 28 Days
1 layer of Geogrid laid on soil surfaceRC Face Plate
400x400x70mm thk bedded on 2:1 Mortar
Voids & Empty Hole packed with 2:1 Mortar
16mm Dia. CFRP Rod
Wedge Grip Mechanism
122
Sutherland Metro (Cont’d)
Using drilling rigs to drill 114mm dia. hole.
CFRP was inserted into the drilled holes. Length of between 3.0 and 10.7 m.Holes filled under gravity with grout.
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Sutherland Metro (Cont’d)
Laying Geogrid unto soil surface
RC bearing plates installed
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Sutherland Metro (Cont’d)
Securing plates with wedge grip mechanism. Filling voids with mortar.
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Sutherland Metro (Cont’d)
Honeycomb of hessian ribbon formed on slope before filling the cells with topsoil.
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Completed Projects
MBrace™Composite Strengthening System
127
BEAM STRENGTHENING
MBrace™Composite Strengthening System
128
MBraceTM Project: Flexure & Shear Strengthening for Beam Compass Rose Restaurant inRaffles City S. C., Singapore
Strengthening using MBraceTM due to change in use.
New RC slabs added to close up void after removal of existing RC staircase linking two floors.
129
MBraceTM Project: Flexure & Shear Strengthening for Beam Compass Rose Restaurant inRaffles City S. C., Singapore
Casting of new RC slab after strengthening of RC beam with MBraceTM
Installing MBraceTM onto RC beam to increase flexural capacity
130
MBraceTM Project: Flexure & Shear Strengthening for Beam Compass Rose Restaurant inRaffles City S. C., Singapore
Strengthening for shear using MBraceTM
Bolting of steel plate to strengthened RC beam
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MBraceTM Project: Flexure Strengthening for Beam Convention Center in Oklahoma City, USA
Strengthening using MBraceTM to increase flexural capacity
Change in use due to addition loads from exhibition events on trucks and heavy machines
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Installing of MBraceTM to main beam
Installing MBraceTM to joist beams
MBraceTM Project: Flexure Strengthening for Beam Convention Center in Oklahoma City, USA
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MBraceTM Project: Flexure Strengthening for Beam North Vista Secondary School, Singapore
Strengthening using MBraceTM to increase flexural capacity of RC Beams
134
MBraceTM Project: Flexure Strengthening for Beam North Vista Secondary School, Singapore
Applying MBraceTM Primer onto prepared RC beam surface
Installing MBraceTM Carbon Fibre onto RC beam to increase flexural capacity
135
MBraceTM Project: Shear Strengthening for Beam Carpark Structure in South Florida, USA
Strengthening of beams to increase shear capacity using MBraceTM
Steel-plate bonding and enlargement proposed initially
But due to space-constraining and aesthetic reasons, MBraceTM accepted
136
MBraceTM Project: Shear Strengthening for Beam Carpark Structure in South Florida, USA
MBraceTM applied to beam at direction perpendicular to shear cracks
MBraceTM installed unto RC beam
Project completed with no disruption and at a reduced cost to owner
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COLUMN STRENGTHENING
MBrace™Composite Strengthening System
138
MBraceTM Project: Column Strengthening Upgrading of Marsiling Drive Precinct MUP10, Singapore
Strengthening of RC columns at first-storey of HDB flats using MBraceTM .
RC columns strengthening under HDB’s upgrading and maintenance to existing HDB flats.
139
Removal of existing paint
Chamfer corners
Repair defective plaster
MBraceTM Project: Column Strengthening Upgrading of Marsiling Drive Precinct MUP10, Singapore
140
Priming prepared surface with MBraceTM Primer
Saturating of MBraceTM E-Glass Fibre with MBraceTM Saturant
Installing MBraceTM
to RC column
MBraceTM Project: Column Strengthening Upgrading of Marsiling Drive Precinct MUP10, Singapore
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RC columns strengthened with MBraceTM
Composite Strengthening System
MBraceTM Project: Column Strengthening Upgrading of Marsiling Drive Precinct MUP10, Singapore
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MBraceTM Project: Flexure Strengthening for Column Stadio De Cesena 98, Italy
RC columns in sports stadium strengthened to increase flexural capacity
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MBraceTM Project: Flexure Strengthening for Column Stadio De Cesena 98, Italy
Crack repair to reinstatecolumn
Column primed with MBraceTM Primer
Column strengthenedwith MBraceTM
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MBraceTM Project: Flexure Strengthening for Column Stadio De Cesena 98, Italy
MBraceTM installed onto RC columns for flexural strengthening
Strengthened column
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MBraceTM Project: Flexure Strengthening for Column Stadio De Cesena 98, Italy
Strain gauges installedonto strengthened column
Insitu load testing on columnstrengthened with MBraceTM
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FRP Project: Column Strengthening Evangel Family Church, Singapore
RC Columns to be strengthened
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FRP Project: Column Strengthening Evangel Family Church, Singapore
Priming of concrete substrate prior to installation
Installation of FRP to RC Column
148
Shear deficiency of RC columns due to additional loading from new roof truss.
Architectural features of columns must be preserved
MBraceTM
proposed and adopted
MBraceTM Project: Column Strengthening Conservation of Majestic Theatre, Singapore
149
Shear capacity of RC columns enhanced with MBraceTM
Architectural features preserved
Total of 20 RC columns strengthened within a short period of 10 days
MBraceTM Project: Column Strengthening Conservation of Majestic Theatre, Singapore
150
SLAB STRENGTHENING
MBrace™Composite Strengthening System
151
MBraceTM Project: Flexure Strengthening for Slab JTC Summit, Singapore
Strengthening using MBraceTM to increase flexural capacity of RC Slabs
152
MBraceTM Project: Flexure Strengthening for Slab JTC Summit, Singapore
Saturating MBraceTM E-Glass Fibre using roller
Installing MBraceTM onto RC slab to increase negative moment capacity
153
MBraceTM Project: Flexure Strengthening for Pier Deck Port Canaveral Pier, USA
Strengthening using MBraceTM to increase flexural capacity of RC Slabs due to increase in crane loads
Coastal/Marine Structures
154
MBraceTM Project: Flexure Strengthening for Pier Deck Port Canaveral Pier, USA
Installation of MBraceTM to soffit of deck slab
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WALL STRENGTHENING
MBrace™Composite Strengthening System
156
MBraceTM Project: Strengthening for Wall Residential Apartment, Singapore
Surface preparation prior to the installation of MBraceTM
Priming of prepared concrete substrate with MBraceTM Primer for installing MBraceTM
157
Applying MBraceTM EG900 E-Glass Fibre saturated with MBraceTM Saturant to the primed concrete substrate
MBraceTM Project: Strengthening for Wall Residential Apartment, Singapore
158
BRIDGES & OTHER STRUCTURES
MBrace™Composite Strengthening System
159
MBraceTM Project: Column StrengtheningViadotto Calafuria 98, Italy
Bridge pier strengthened using MBraceTM to increase its load-bearing capacity
Strengthening work was conducted with no disruption to traffic flow of the bridge
160
Column primed with MBraceTM Primer andSaturant
Laying dry MBraceTM Carbon Fibre vertically to column
MBraceTM Project: Column StrengtheningViadotto Calafuria 98, Italy
161
Apply MBraceTM Saturant ontoMBraceTM Carbon Fibre toimpregnate the carbon fibre
Remove protective sheetfrom MBraceTM Carbon Fibre
MBraceTM Project: Column StrengtheningViadotto Calafuria 98, Italy
162
Laying dry MBraceTM Carbon Fibre horizontallyto column
Remove protective sheetfrom MBraceTM Carbon Fibre
MBraceTM Project: Column StrengtheningViadotto Calafuria 98, Italy
163
Final adjustment and alignment of carbon fibre
Apply MBraceTM Saturant ontoMBraceTM Carbon Fibre toimpregnate the carbon fibre
MBraceTM Project: Column StrengtheningViadotto Calafuria 98, Italy
164
MBraceTM Project: Bridge StrengtheningArch Railway Prakanong Bridge, Thailand
Award-Winning Project50 year old Arch Railway Bridge strengthened with MBraceTM due to increase in traffic volume
8th Annual Projects AwardsICRI 2000 Project Awards ProgramAward of ExcellenceTransportation Category
165
Restoration in progress with no disruption to transportation of oil
MBraceTM Project: Bridge StrengtheningArch Railway Prakanong Bridge, Thailand
Installation of MBraceTM to bridge
Bridge strengthened and the architectural beauty of the bridge is also preserved.
166
Restoration in progress with nodisruption to transportation of oil
Applying MBraceTM Saturant to MBraceTM Carbon Fibre
MBraceTM Project: Bridge StrengtheningArch Railway Prakanong Bridge, Thailand
167
Installation of MBraceTM to bridge
Bridge strengthened to withstand a 40% increase in live load and the architectural beauty of the bridge is also preserved.
MBraceTM Project: Bridge StrengtheningArch Railway Prakanong Bridge, Thailand
168
MBraceTM Project: Bridge Strengthening Little River Bridge, Australia
80 year old bridge built in 1920 was strengthened with MBraceTM to increase its load-bearing capacity due to new code requirement
MBraceTM was proposed against steel-plate bonding and approved!!!
Strengthening completed within three weeks
169
Level substrate with MBraceTM Putty
Prime substrate with MBraceTM Primer
Installing MBraceTM to soffit of beam
MBraceTM Project: Bridge Strengthening Little River Bridge, Australia
170
MBraceTM Project: Bridge Strengthening Bridge G270, Phelps County MO USA
Pilot Project with the Missouri Department of Transportation (MoDOT) to study the effective of strengthening bridge with FRP
Bridge strengthened to allow removal of load posting
171
Installing MBraceTM to soffit of deck slab
Bridge deck slab strengthened with MBraceTM
MBraceTM Project: Bridge Strengthening Bridge G270, Phelps County MO USA
172
MBraceTM Project: Bridge Strengthening Santa Theresa Viaduct, Brazil
Important viaduct serving heavy traffic daily
Viaduct needed to be strengthened to cater to increase in traffic load
Required Upgrade for 45-ton Vehicles
173
MBraceTM Project: Bridge Strengthening Santa Theresa Viaduct, Brazil
MBraceTM installed to soffit of deck slabs and beams for flexural strengthening
Viaduct strengthened and completed with finishes
174
MBraceTM Project: Bridge Strengthening Spring Cypress Overpass, Houston TX USA
175
MBraceTM Project: Bridge Strengthening Spring Cypress Overpass, Houston TX USA
176
MBraceTM Project: Bridge Strengthening Spring Cypress Overpass, Houston TX USA
177
MBraceTM Project: Bridge Strengthening I-44 & I-270 Overpass, St. Louis MO USA
Bridge repaired and strengthened due to damage by impact and collision from vehicles
178
MBraceTM Project: Bridge Strengthening I-44 & I-270 Overpass, St. Louis MO USA
Beam reinstated and strengthened with MBraceTM
Damaged portion of the beamby vehicles
179
MBraceTM Project: Bridge Strengthening Court Street Bridge, Oswego NY USA
180
MBraceTM Project: Bridge Strengthening Poplar Street Bridge, Berea HO USA
MBraceTM used to increase ductility and seismic resistance of bridge pier
181
MBraceTM Project: Crack Repair for Tank Water Tank in USA
Cracks caused by insufficient steel due to design error
Cracks injected with epoxy and MBraceTM installed across crack
Cracks
182
MBraceTM Composite Strengthening System Final View
Steel-plate Bonding Jacketing MBraceTM System
183
PROJECT REFERENCES MBRACE SYSTEM IN INDONESIA
MBrace™Composite Strengthening System
184
Bridge Beam/Slab ; Increasing traffic volumes
185
PROYEK PERKUATAN GIRDER I PRETENSION RUAS E-1 SEKSI IV FLY OVER TOL JATI ASIH
186
PERBAIKAN STRUKTUR PASCA GEMPA BUMI GEDUNG KANTOR BANK INDONESIA MedanMbrace CF 130
187
Mbrace CF 130, Discovery Mall Bali
188
Mbrace CF 130 Dago Boutiq, Bandung
189
Mbrace CF 130 Lingkar Selatan Elektronik Center, Bandung
190
Aplication Mbrace CF 130 at beams structure at Braga Citywalk Bandung
191
ApplicationMbrace CF130 at Istana Plaza MallBandung
192
Application Mbrace laminate at South Pacific Viscose Purwakarta.
193
Mbrace Laminate, Indosat Building Solo
194
END OF PRESENTATION
THANK YOU
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