Friday, February 10, 2017

IS:5525- Detailing of reinforcement in reinforced concrete works

This standard deals with the general requirements of detailing of reinforcement in reinforced concrete structures.




  • According to it, all reinforcement bars used in structures shall be suitably designated & numbered both in drawing & in schedule.
  • The use of the same type of line for the same purpose considerably enhances the clarity & usefulness of the drawing. 
  • Different structural members of a structure shall be marked using symbols, abbreviations & notations.
  • A key framing plan shall be prepared to a convenient scale & the two axes marked, one side with alphabets A, B, C etc & other with numbers. The same key framing plan may be used for all floors if the arrangement of beams is same at different floors.
  • Columns & Foundations shall be specified by grid arrangement giving reference to the floor.
  • Beams, Slabs & Lintels, Tie Beams shall be numbered from left hand top corner.
  • Scales shall be so chosen to bring out the details clearly. No general recommendations can be given in this respect, although commonly used scales are given below as examples: