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Backward Expanding Bottom Anchor THK
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Presentation:
·Use a hammer and installation tool to strike the anchor bolt casing, you can press the casing to the tapered head, so that its expansion embedded in the back of the expansion of the bottom of the drilled holes, the formation of mechanical locking key action.
·Mechanical keying by the principle of back-expanded bottom anchoring, suitable for cracked concrete.
·Shallow depth of burial, high load capacity embedded in the bottom of the expanded conical hole, to achieve the effect of pre-burial.
· hot-dip galvanised to achieve higher corrosion requirements.
·Adopting 8.8 grade high strength screws, which are exposed after the anchor bolts are installed in place to ensure that the installation is in place.Advantages:
·Rear expanding bottom anchor bolts in accordance with "Design Code for Reinforcement of Concrete Structures" GB50367-2013 and "Technical Specification for Post-anchoring of Concrete Structures" JGJ145-2013.
·Mechanical locking key effect for shallow burial depths and high load carrying capacity for maximum security.
·Almost no expansion force, especially suitable for anchoring with restricted edge spacing.
·Visual inspection of the marking lines ensures correct installation. -Installed and ready to carry the maximum design load without waiting time (compared to learnt anchors).Application:
·Steel Structure
·Safety hand
·Railings
·Cable bridge
·Machinery and equipment
·Doors and windows
·Curtain wall
·StairsFunction:
·Suitable for pre-insertion installation, penetration installation.
·After the installation torque is applied, the screw vertebrae is pulled into the expansion piece, which opens and presses against the hole wall.
·Once the mounting torque requirements are met, install in place.Installation steps
Installation data
model Drilling Diameter do (mm) Effective anchoring depth hef (mm) Maximum anchoring thickness tfix (mm) Screw specification M Shim(OD*Thickness) (mm) THK 14*40 M10/25 14 40 25 M10 20*2 THK 18*80 M12/35 18 80 35 M12 24.5*2.5 THK 22*125 M16/45 22 125 45 M16 30*3 THK 28*160 M20/75 28 160 75 M20 30*3 Table of basic design parameters
model M10 M12 M16 M20 Design parameter values for tensile on c30 non-cracked concrete 16.8 22.9 34.5 58.8 Design parameter values for shear on c30 non-cracked concrete 13.1 19.0 32.3 55.2 Design parameter values for tensile on c30 cracked concrete 11.0 17.2 24.5 44.0 Design parameter values for shear on c30 cracked concrete 13.1 19.0 32.3 55.2
Backward Expanding Bottom Anchor THK
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Backward Expanding Bottom Anchor THK
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