Contact:
Summer Zhu
Mobile/Wechat/Whatsapp: +86 13571973823
Email: summer@ztmineequipment.com
Description of single wire stressing jack:
Single-wire stressing jacks are manufactured with 220KN and 300KN capacity and 200mm or 400mm stroke. Sigle wire stressing jacks are sutable for 12.7mm,15.2mm , and 15,7mm strands. These jacks generally find their application in commercial buildings like malls, office space etc.
Parameters of single wire stressing jack:
|
Project |
Unit |
Value |
|
Nominal tension |
KN |
257 |
|
Nominal oil pressure |
MPA |
50 |
|
Tension piston area |
M2 |
5.137*10 |
|
Return piston area |
M2 |
1.335*10 |
|
Piercing hole diameter |
MM |
19 |
|
Trolley trip |
MM |
200 |
|
Dimensions |
MM |
180*568 |
|
Return oil pressure |
MPA |
Less than or equal to 25 |
Safety precaution during operating single wire stressing jack:
During Prestressing operation, a huge forces are been induced into the tendons by the Jacking Equipments. These jacking equipments are working under tremendous hydraulic pressure, and thus a careful and competent workmanship can avoid accidents and damage to the equipment.
Some essential precautions are being listed here, to be adhered to:
Operating single wire stressing jack should be carried out by the trained and experienced personnel, under a competent engineer or supervisor.
Damaged hose pipes must be replaced immediately. Any lack of decision in this regard may cause a serious accident.
Stressing shall be done according to the specified data provided by the designer. In no case the pressure should be exceeded beyond 5% of the allowable limit of Single-wire Stressing Jacks For Post Tensioning.
The Prestressing steel (i.e. bars, wires or strands) should be stored carefully to ensure that they are not damaged in any way and should be checked for rust or corrosion before use.
Do not use Acetylene gas Torch heating apparatus to cut or trim the strand before stressing. Only abrasive cutting wheels should be used.
Prestressing steel should not be used for providing earthing to the electrically operated equipments. An electric spark, when jumps through the prestressing steel, may effect or alter the molecular structure and a loss of strength may occur.
Lightening conductors should be routed clear of tendons and the Anchorages etc.
Contact:
Summer Zhu
Mobile/Wechat/Whatsapp: +86 13571973823
Email: summer@ztmineequipment.com
Hot Tags: single-wire stressing jacks for post-tensioning, manufacturers, suppliers, factory, wholesale, buy, cheap, low price