Bar Bending Schedule
Introduction:
Bar bending schedule is made by engineers/supervisors in site from the detailed reinforcement drawings received from the structural consultants.
It is for the exact quantity calculations as well the uneducated bar benders can understand only BBS and not the reinforcement drawings given by the structural consultants.
Also it helps in steel wastage because of proper planning.
Manual BBS:
Need to be expert in all the formulas. Manual bending and machine bending the formulas will vary.
BBS Softwares
There are two types of software are available in the industry.
i) Fully automatic software which has the ability to generate BBS directly from AutoCAD drawing.
Go to the following websites for these types of software.
http://www.rgsrebar.com/rebar.aspx
http://www.ensoftindia.com/prod_barbeque.htm
http://www.eigen-tech.com/cs.html
http://www.steelpac.co.uk/design/steelpac_rdm.html
http://www.cadsglobal.com
ii) Semi automatic software which needs manual input, and the program automatically calculates the cutting length and weight and generate a picture of the shape.
Go to the following websites for these types of software.
http://www.BendingSchedule.com
http://www.continuousbeamanalysis.com
For both types of software “shape code” is used to identify different types bend profiles.
These are the international standard shape codes:
India- IS2502:1999
UK- BS8666:2005
US- ACI-318
Australia- AS3600
New Zealand- NZS3101
South Africa- SABS-82:1997
Link to download free excel sheet program... Master with this first.
Introduction:
Bar bending schedule is made by engineers/supervisors in site from the detailed reinforcement drawings received from the structural consultants.
It is for the exact quantity calculations as well the uneducated bar benders can understand only BBS and not the reinforcement drawings given by the structural consultants.
 |
| bar cutting by bar bender |
Also it helps in steel wastage because of proper planning.
 |
| Typical Reinforcement Drawing |
 |
| Typical BBS Schedule |
Manual BBS:
Need to be expert in all the formulas. Manual bending and machine bending the formulas will vary.
 |
| Basic Formulaes |
 |
| Master Formulaes and Shape Codes |
BBS Softwares
There are two types of software are available in the industry.
i) Fully automatic software which has the ability to generate BBS directly from AutoCAD drawing.
Go to the following websites for these types of software.
http://www.rgsrebar.com/rebar.aspx
http://www.ensoftindia.com/prod_barbeque.htm
http://www.eigen-tech.com/cs.html
http://www.steelpac.co.uk/design/steelpac_rdm.html
http://www.cadsglobal.com
 |
| Software Interface |
Go to the following websites for these types of software.
http://www.BendingSchedule.com
http://www.continuousbeamanalysis.com
For both types of software “shape code” is used to identify different types bend profiles.
These are the international standard shape codes:
India- IS2502:1999
UK- BS8666:2005
US- ACI-318
Australia- AS3600
New Zealand- NZS3101
South Africa- SABS-82:1997
Link to download free excel sheet program... Master with this first.
