Hi sir. During training, you mentioned that if the dropper is fitted with a Class A coupler and on top of that a Class A supplementary coupler is also fitted, then the capacity will become 9.1 kN, whereas it is actually 12.2 kN. Please clarify this confusion.
Main Coupler plus Supplementary Coupler arrangement Maximum Safe Working Load Two BS EN 74-1 Class A couplers-9.1kN (right angle couplers only) Two BS EN 74-1 Class B couplers-15.2 kN (right angle couplers only) if you need more clarification about supplementary couplers arrangement please refer NASC-(Technical guidance)-TG14:20 Supplementary Couplers and Check Couplers
TG14:20 Supplementary Couplers and Check Couplers NASC NATIONAL ACCESS & SCAFFOLDINGCONFEDERATION SUPPLEMENTARY COUPLERS Supplementary couplers are sometimes incorrectly referred to as check couplers or safety couplers. Supplementary couplers are active couplers which add strength to the connection, whereas check couplersare used to give added security in situations of high risk to personnel but cannot be relied upon to provideadditional strength to the joint.
No. A hanging scaffold is a “temporary work platform without support from below, secured to an overhead structure using fixed length rigid suspension members” while a suspended scaffold utilizes non-rigid suspension members.
Scaffold safe working Load(SWL) मचान सुरक्षित कार्य भार (एसडब्ल्यूएल) SCAFFOLD DEAD LOAD -Weight of the Scaffold components +Weight of the Scaffold working platform मचान डेड लोड - स्कैफोल्ड घटकों का वजन + स्कैफोल्ड वर्किंग प्लेटफॉर्म का वजन SCAFFOLD LIVE LOAD - Weight of the workers+Materials+Tools मचान लाइव लोड - श्रमिकों का वजन + सामग्री + उपकरण SAFE WORKING LOAD FORMULA सुरक्षित कार्य भार फॉर्मूला SWL=D(4×L) एसडब्ल्यूएल=डी(4×एल)
SWL = D+(4×L) D: Dead weight L: live weight Dead weight = weight of scaffolding , working component, platform weight. Live weight = Tools (Material) Human being. I think Now you understood very well.
Scaffold load capacity depend on scaffold diamension. follow the below dimensions information for scaffolding load capacity kg/m2 *Very Light duty scaffold- maximum platform load 0.75KN/m2 or 75 KG / m2 Dimensions - Length -2. 4 m * Width-1.2 m. Light duty scaffold- maximum platform load 1.5KN/m2 or 150 KG / m2 Dimensions -Length -2. 4m * Width-1.2 m. *General Purpose duty scaffold- maximum platform load 2.0KN/m2 or 200 KG /m2 Dimensions - -Length -2.0m * Width-1.2 m. *Heavy duty scaffold- maximum platform load 3.0KN/m2 or 300 KG /m2 Dimensions - Length-1.8m* Width-0.9m Specifications -NASC UK-TG-20 -bay lengths and widths are available from a TG 20 compliance sheet As per NASC GUIDELINES without design The cantilevered platform may be very lightly loaded to 0.75kN/m2 only, suitable for access but not the storage of materials. Design requirement for cantilever scaffold- One such platform may be lifted to each elevation of the scaffold, at the main platform level. A bespoke design is required if multiple platforms are fitted at one elevation or if the platform is at the end or outer scaffold cases. The platform is supported by extended structural transoms at each frame connected to the inner and outer ledgers of the main scaffold and to an under-slung inner ledger at the platform edge. This ledger should be connected to the inner ledger of the lift below with raking tubes fixed with right-angle couplers at each frame with supplementary couplers. if you want to be a cantilever scaffold erected for light, general or heavy duty you should follow design. *Hanging or Suspended scaffold Must be designed
Thank sir
🙏
Hi sir.
During training, you mentioned that if the dropper is fitted with a Class A coupler and on top of that a Class A supplementary coupler is also fitted, then the capacity will become 9.1 kN, whereas it is actually 12.2 kN. Please clarify this confusion.
Main Coupler plus Supplementary Coupler arrangement
Maximum Safe Working Load
Two BS EN 74-1 Class A couplers-9.1kN (right angle couplers only)
Two BS EN 74-1 Class B couplers-15.2 kN (right angle couplers only)
if you need more clarification about supplementary couplers arrangement please refer NASC-(Technical guidance)-TG14:20 Supplementary Couplers and Check Couplers
Thanks a lot sir
Good job💯
Thanks for your valuable feedback 🙏
Material loading scaffolding ka bare may bi banaow sir
@@BalBahadur-hy7op sure👍
What are the main difference between supplementary coupler and check couplers?
TG14:20
Supplementary Couplers and Check Couplers
NASC
NATIONAL ACCESS & SCAFFOLDINGCONFEDERATION
SUPPLEMENTARY COUPLERS
Supplementary couplers are sometimes incorrectly referred to as check couplers or safety couplers.
Supplementary couplers are active couplers which add strength to the connection, whereas check couplersare used to give added security in situations of high risk to personnel but cannot be relied upon to provideadditional strength to the joint.
Hanging nd suspended Scaffolding same or different?
No. A hanging scaffold is a “temporary work platform without support from below, secured to an overhead structure using fixed length rigid suspension members” while a suspended scaffold utilizes non-rigid suspension members.
Sir jab scaffolder / scaffolding erection start karta hai to red tag kaun lagaega
Scaffolder Foreman/Supervisor is responsible for a red tag Holder
What is dead load live load and swl farmula
Please send us scaffolding all farmula
Please send me your mail ID
Scaffold safe working Load(SWL)
मचान सुरक्षित कार्य भार (एसडब्ल्यूएल)
SCAFFOLD DEAD LOAD -Weight of the Scaffold components +Weight of the Scaffold working platform
मचान डेड लोड - स्कैफोल्ड घटकों का वजन + स्कैफोल्ड वर्किंग प्लेटफॉर्म का वजन
SCAFFOLD LIVE LOAD - Weight of the workers+Materials+Tools
मचान लाइव लोड - श्रमिकों का वजन + सामग्री + उपकरण
SAFE WORKING LOAD FORMULA
सुरक्षित कार्य भार फॉर्मूला
SWL=D(4×L)
एसडब्ल्यूएल=डी(4×एल)
@@ATOZSCAFFOLDINGSOLUTIONS please send us a video of all farmula of scaffolds to better understand sir.
SWL = D+(4×L) D: Dead weight L: live weight Dead weight = weight of scaffolding , working component, platform weight. Live weight = Tools (Material) Human being.
I think Now you understood very well.
How to calculate load capacity hanging nd cantilever Scaffolding? what's the formula Sir
Scaffold load capacity depend on scaffold diamension. follow the below dimensions information for scaffolding load capacity kg/m2
*Very Light duty scaffold- maximum platform load 0.75KN/m2 or 75 KG / m2
Dimensions - Length -2. 4 m * Width-1.2 m.
Light duty scaffold- maximum platform load 1.5KN/m2 or 150 KG / m2
Dimensions -Length -2. 4m * Width-1.2 m.
*General Purpose duty scaffold- maximum platform load 2.0KN/m2 or 200 KG /m2
Dimensions - -Length -2.0m * Width-1.2 m.
*Heavy duty scaffold- maximum platform load 3.0KN/m2 or 300 KG /m2
Dimensions - Length-1.8m* Width-0.9m
Specifications -NASC UK-TG-20 -bay lengths and widths are available from a TG 20 compliance sheet
As per NASC GUIDELINES without design The cantilevered platform may be very lightly loaded to 0.75kN/m2 only, suitable for access but not the storage of materials. Design requirement for cantilever scaffold- One such platform may be lifted to each elevation of the scaffold, at the main platform level. A bespoke design is required if multiple platforms are fitted at one elevation or if the platform is at the end or outer scaffold cases. The platform is supported by extended structural transoms at each frame connected to the inner and outer ledgers of the main scaffold and to an under-slung inner ledger at the platform edge.
This ledger should be connected to the inner ledger of the lift below with raking tubes fixed with right-angle couplers at each frame with supplementary couplers. if you want to be a cantilever scaffold erected for light, general or heavy duty you should follow design.
*Hanging or Suspended scaffold Must be designed
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Sir hame supervisor ka interview dena hai to all pipe code bataye
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