Hi all, I am working as a Safety Incharge. I want to know whether adjustable u-head jack can be used instead of adjustable screw base jack at the base and whether it is safe/and can be used for scaffolding erection.
I have attached image of same.
Kindly guide me on this.
Thank you.
From India, Mumbai
I have attached image of same.
Kindly guide me on this.
Thank you.
From India, Mumbai
Dear friends, I like the question. Appreciate Mr.janathsai for asking it. Waiting for responses. Regards, Kesava Pillai
From India, Kollam
252From India, Kollam
Dear Jaganathsai
What shows in the picture is fully unsafe...
Adjustable u-head jack is not designed to use as a base jack... The main function of a U-Head is to hold timber or steel beams securely in place on top of a standard/vertical pipe...
@ Kesava Pillai
Dear Sir
Thanks for your interest shown against this thread...
Please correct me if I am wrong...
From India
What shows in the picture is fully unsafe...
Adjustable u-head jack is not designed to use as a base jack... The main function of a U-Head is to hold timber or steel beams securely in place on top of a standard/vertical pipe...
@ Kesava Pillai
Dear Sir
Thanks for your interest shown against this thread...
Please correct me if I am wrong...
From India
Dear sai,
U-head is specially designed for support and hold the wood runners and steel beams on top of standard or vertical . it is not acceptable to use as a base of scaffold. base of the scaffold should be flat and rigid. u-head jack take the load , when load with in the u-shape.
From India, Hyderabad
U-head is specially designed for support and hold the wood runners and steel beams on top of standard or vertical . it is not acceptable to use as a base of scaffold. base of the scaffold should be flat and rigid. u-head jack take the load , when load with in the u-shape.
From India, Hyderabad
Dear Friends,
A safetyman should have basic engineering background. Scaffolds are designed to hold weight depending upon intended use. We give a factor of safety too because of the risk of failure.
Standards are the ones to bear the load. Standards will be resting on the ground. Since we use only pipes as standards which will rest on the ground surface there will be limited area of contact on ground to support the entire load coming over it. On loading the ground surface may easily give way with the limited area of contact of the pipe. We need to expand the area of contact on the ground for which we use base plate under standards over concrete/asphalt, or other solid surfaces. Where the surface on which the scaffold is erected is not solid enough we also use sole boards.
With the U head shown:
1. There will be limited area of contact.
2. The load bearing capacity of the supporting plate is questionable. On load it may also open up. Side plates are not intended to take any load but only to hold the section in position.
Because of the above issues it is not advisable to use it as shown.
Not only engineers but the nature itself designs every organism with very many components. Every component has its intended use.
Can anyone walk upside down on your head? Head is designed to serve a definite purpose and so also the feet.
Hope this gives a satisfactory explanation.
Regards,
Kesava Pillai
From India, Kollam
A safetyman should have basic engineering background. Scaffolds are designed to hold weight depending upon intended use. We give a factor of safety too because of the risk of failure.
Standards are the ones to bear the load. Standards will be resting on the ground. Since we use only pipes as standards which will rest on the ground surface there will be limited area of contact on ground to support the entire load coming over it. On loading the ground surface may easily give way with the limited area of contact of the pipe. We need to expand the area of contact on the ground for which we use base plate under standards over concrete/asphalt, or other solid surfaces. Where the surface on which the scaffold is erected is not solid enough we also use sole boards.
With the U head shown:
1. There will be limited area of contact.
2. The load bearing capacity of the supporting plate is questionable. On load it may also open up. Side plates are not intended to take any load but only to hold the section in position.
Because of the above issues it is not advisable to use it as shown.
Not only engineers but the nature itself designs every organism with very many components. Every component has its intended use.
Can anyone walk upside down on your head? Head is designed to serve a definite purpose and so also the feet.
Hope this gives a satisfactory explanation.
Regards,
Kesava Pillai
From India, Kollam
Yes it can be used but the case is what is your base if it is a flat surface then it should be flat and if your base is pipe / brick / rectangke shape then u-shape will help you for better grip.
From India, Shimla
From India, Shimla
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