Product navigation switch

PRESTRESS CFRP SYSTEM

 

 

Prestressed CFRP System Application Range

• improve the bearing capacity of bridge structure,has incomparable advantages in large-span beam slab of flexural reinforcement.
• significantly reduce deformation of the structure and improve the bearing capacity of structure,decrease the crack width and
deflection deformation,and is suitable for large span beam slab of flexural reinforcement.
• improve the stiffness of structure ,and make full use of the material performance ,save a lot of materials and engineering cost.

Prestressed CFRP System Application Range

• improve the bearing capacity of bridge structure,has incomparable advantages in large-span beam slab of flexural reinforcement.
• significantly reduce deformation of the structure and improve the bearing capacity of structure,decrease the crack width and
deflection deformation,and is suitable for large span beam slab of flexural reinforcement.
• improve the stiffness of structure ,and make full use of the material performance ,save a lot of materials and engineering cost.

Take full advantage of high strength of carbon fiber;
make new structures and old ones work together,
change the passive reinforcement to active reinforcement.

the increasing stress can remove or retard the stress hysteresis of the added structures, make the added structure work together with the original structure, to achieve a more efficient result

Take full advantage of high strength of carbon fiber;
make new structures and old ones work together,
change the passive reinforcement to active reinforcement.

the increasing stress can remove or retard the stress hysteresis of the added structures, make the added structure work together with the original structure, to achieve a more efficient result

Prestressed FRP laminate reduce or even remove the existing structures’ cracks
so that solve the crack issues fundamentally.

the hogging moment from prestess can offset some initial load influences, increase the load in working term, make the existing crack reducing or even closed completely, meanwhile limited the new cracks appearing.

Prestressed FRP laminate reduce or even remove the existing structures’ cracks
so that solve the crack issues fundamentally.

the hogging moment from prestess can offset some initial load influences, increase the load in working term, make the existing crack reducing or even closed completely, meanwhile limited the new cracks appearing.

Prestressed FRP laminate not only improve the structures’rigidity and
anti-crack performance, but also improve the bearing capacity beyond your imagination.

through the high pressure of the concrete and high strength of carbon fiber to increase the tensile strength and retard the cracks of the existing structures so that to increase the anti-crack performance and rigidity to realize the structural strengthening.

Prestressed FRP laminate not only improve the structures’rigidity and
anti-crack performance, but also improve the bearing capacity beyond your imagination.

through the high pressure of the concrete and high strength of carbon fiber to increase the tensile strength and retard the cracks of the existing structures so that to increase the anti-crack performance and rigidity to realize the structural strengthening.

High Strain, no peeling damage, achieve high performance of CFRP

enable CFRP be in strain status when adhere CFRP with substrates. no bending or curve between bonding member and pulling direction, hence no peeling strain caused. high strength bolt ensure the fast fixing, which could be double secure to avoid damages caused by peeling and bonding.

High Strain, no peeling damage, achieve high performance of CFRP

enable CFRP be in strain status when adhere CFRP with substrates. no bending or curve between bonding member and pulling direction, hence no peeling strain caused. high strength bolt ensure the fast fixing, which could be double secure to avoid damages caused by peeling and bonding.

No bonding damage between substrate and CFRP

low shear strain, as lower increase of stress and strain of prestress member than that of no prestress member, less shear on epoxy than non prestress members, low possibility of bonding strength.

No bonding damage between substrate and CFRP

low shear strain, as lower increase of stress and strain of prestress member than that of no prestress member, less shear on epoxy than non prestress members, low possibility of bonding strength.

No effect on glue aging, excellent secure and durability system

full mechanical self—lock, avoid failure because of epoxy aging, solve the problem of low shear of CFRP, ensure the system secure and long durability.

No effect on glue aging, excellent secure and durability system

full mechanical self—lock, avoid failure because of epoxy aging, solve the problem of low shear of CFRP, ensure the system secure and long durability.

High nipping power, low damage on CFRP

logical taper makes strong nipping strength, logical lean angle, gear depth and length, slab length, after hundreds of testing, suitable hardness, achieved minimum damages on CFRP.

High nipping power, low damage on CFRP

logical taper makes strong nipping strength, logical lean angle, gear depth and length, slab length, after hundreds of testing, suitable hardness, achieved minimum damages on CFRP.

What is the HM Pre-stress carbon fiber reinforced polymer(FRP) laminate system?

• HM pre-stressed FRP laminate system is composed of carbon fiber laminates, and anchoring device.
• through the clips make the stress to carbon fiber laminates, make the laminates anchoring to concrete permanently, and that will add the stress to the concrete in bending direction.
• the increasing stress can remove or retard the stress hysteresis of the added structures, make the existing crack reducing or even closed completely, so that to achieve real reinforcing.

What is the HM Pre-stress carbon fiber reinforced polymer(FRP) laminate system?

• HM pre-stressed FRP laminate system is composed of carbon fiber laminates, and anchoring device.
• through the clips make the stress to carbon fiber laminates, make the laminates anchoring to concrete permanently, and that will add the stress to the concrete in bending direction.
• the increasing stress can remove or retard the stress hysteresis of the added structures, make the existing crack reducing or even closed completely, so that to achieve real reinforcing.

Characteristics of Pre-stressed CFRP system

• safe and reliable
• easy to install
• good economical
• reliable patent anchorage system
• suitable for large span beam slab of flexural reinforcement
• matching carbon fiber plate,adhesive,anchoring devices ensures the system matching

Characteristics of Pre-stressed CFRP system

• safe and reliable
• easy to install
• good economical
• reliable patent anchorage system
• suitable for large span beam slab of flexural reinforcement
• matching carbon fiber plate,adhesive,anchoring devices ensures the system matching

Advantage of Pre-stress CFRP Plate

• Active strengthening, no stain lagging
• Reduce the cracks of the component effectively and slow the development of cracks
• Increase the crack resistance and rigidity of the component, increase the loading capacity of component
• Fully achieve the high strength property of carbon fiber, both new and original component be under loading.

Advantage of Pre-stress CFRP Plate

• Active strengthening, no stain lagging
• Reduce the cracks of the component effectively and slow the development of cracks
• Increase the crack resistance and rigidity of the component, increase the loading capacity of component
• Fully achieve the high strength property of carbon fiber, both new and original component be under loading.

 

 

 

Pre-stressed CFRP Laminate

HM-3.0T carbon fiber laminate.pdf

HM-2.0T carbon fiber laminate.pdf

HM-1.2T carbon fiber laminate.pdf

HM-1.4T carbon fiber laminate.pdf


Pre-stress FRP strengthening system (patent number:ZL.2014.2.0115709.1)









Prestress carbon fiber plate


HM-1.2T

Thickness1.2mm
Width50mm/100mm
Length100m/roll


HM-1.4T

Thickness1.4mm
Width50mm/100mm
Length100m/roll


HM-2.0T

Thickness2.0mm
Width50mm/100mm
Length100m/roll


HM-3.0T

Thickness3.0mm
Width50mm/100mm
Length100m/roll



Self lock anchorage

HM-MJ100
HM-MJ50
HM-MJ20
HM-MJ-G50


Pre-stress Carbon Fiber Laminate Performance Parameters
Tensile Strength ( MPa)≥2800
Tensile Modulus(MPa)≥1.6×105
Elongation(%)≥1.6
Interlaminar Shear Strength(MPa)≥50
Cohesive pulling strength with concrete(MPa)≥2.5 (Concrete cohesion damage)
Fiber volume fraction(%)≥65


Anchorage Performance Parameters
Steel Tensile Strength(MPa)≥345
Stress Amplitude Difference(MPa)160
2 Million Fatigue Test Fmin(MPa)1120
2 Million Fatigue Test Fmax(MPa)1280



Prestressed CFRP laminate operatation process

  1. location and paying off

  2. polish

  3. drilling hole

  4. grooving

  5. repairing and leveling

  6. planting anchor

  7. installing bounding box

  8. installing anchor block

  9. fixing carbon fiber laminate

  10. fixing jack and high strength anchor bolt

  11. prestretching

  12. applying epoxy resin 

  13. prestretching

  14. removing the thread rod

  15. tablet fixing 

  16. finished product protection


Back
Top
Close