How to calculate lap,bond and hook length for preparing bar
Bending schedule ?
- 11 Answers
- 139647 Views
- L&T, Saudi Aramco Shell Refinery Company SASREF, Sunil Hitech Engineers, Tempus, Zain United Arabian, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / arun sangwan
To calculate the lap length-48*D
For calculating hook & bend -As per Is 2502,The anchorage value of the of bend shall be taken as 4*D of the bar for each 45 Degree bend and for the U type hook its always taken as 16* D.
For the bond length(Development Length)-Ld-It is calculated by the formula. and it includes all the values of the anchorages.
| Is This Answer Correct ? | 317 Yes | 77 No |
Answer / naveen m
hook length is 5*d lap length can been given at the end L/7
and at continuous L/4.
| Is This Answer Correct ? | 134 Yes | 71 No |
Answer / syed mohd. fareed
Hook - 9d (d- dia of bar)
Bent up - 0.42D (D- centre to centre vertical distance between bent portion and bar )
Lap - 50d (d-dia of bar)
| Is This Answer Correct ? | 50 Yes | 12 No |
Answer / mohammed aijaz hussain.
Lap length: 45 diameter of the bar (in compression member)
50 diameter of the bar (in tension member)
Bond length: 24 diameter of the bar
Hook length: 12 diameter of the bar
| Is This Answer Correct ? | 68 Yes | 31 No |
Answer / lalit kumar singh
Lap lenght:- for liquid structure- 50d
for another structure-40d
(like column, beam, slab)
For stirrups Hook:- 2x10d
for corner bend :- (-3d) upto 12dia.
(-4d)above 12dia.
| Is This Answer Correct ? | 51 Yes | 22 No |
Answer / vinod
Lap length of bar depends on grade of concrete and design
bond. Owing to the Grade of concretes:
Grade of concrete) Tension Compression
M15 56.4d 45.15d
M20 47d 37.6d
M25 40.3d 32.25d
M30 37.06d 30.1d
For stirrups Hook length, it will be (-)2x10d
Bend, it will be (-3d) upto 12dia.
(-4d) above 12dia.
| Is This Answer Correct ? | 35 Yes | 12 No |
Answer / muthuraj s
it dedpend upon design basics please follwing SP34 & IS2502
| Is This Answer Correct ? | 28 Yes | 13 No |
Answer / bharat hire
Lap length of bar depends on grade of concrete and design
bond. Owing to the Grade of concretes:
Grade of concrete) Tension Compression
M15 56.4d 45.15d
M20 47d 37.6d
M25 40.3d 32.25d
M30 37.06d 30.1d
For stirrups Hook length, it will be (-)2x10d
Bend, it will be (-3d) upto 12dia.
(-4d) above 12dia.
| Is This Answer Correct ? | 18 Yes | 10 No |
how amny bricks of size 240 mm X 120 mm X70 mm are required in 100 cubic meter brickwork. How much cement is required at 10 mm masonry and at 4:1 sand cement ratio and how much cubic meter of sand is required for the above work.
whats is difference between anchorage length and development length
What is the thickness of slab for 600 sq each) 2 slab construction. What should be the size of steel rod?
How many no of bars in a bundle of steel and kgs/bundle. 8 mm, 10mm, 12mm, 16mm, 20mm with both MS and TMT separate.
Why are L-beams (cast monoloithic with slab)that usually occur at the slab edge, provided with overhangs?
how much steel is required for 1 sqft of slab
What is the dimension of Slump cone which is used to measure the Slump value of concrete? Slump value for Pile concrete? Slab concrete? Column concrete?
what is the unit for sbc of soil
Whats the standard thickness of 20'/30' wide rcc service road and what will be the estimated cost per cubit feet
form work including the props can be removed from beams only after
show answer/ calculate-1-2-4 ratio-concrete -cement-sand- metal-water - please brief calculation
How to decide/consider the grade of bitumen for dbm.
-
Civil Engineering (5085) - Mechanical Engineering (4451)
- Electrical Engineering (16632)
- Electronics Communications (3918)
- Chemical Engineering (1095)
- Aeronautical Engineering (239)
- Bio Engineering (96)
- Metallurgy (361)
- Industrial Engineering (259)
- Instrumentation (3014)
- Automobile Engineering (332)
- Mechatronics Engineering (97)
- Marine Engineering (124)
- Power Plant Engineering (172)
- Textile Engineering (575)
- Production Engineering (25)
- Satellite Systems Engineering (106)
- Engineering AllOther (1379)
