HEADER WITH DETAILS

1. In-situ or Precast element present above the door or window opening is called header. (Ref.Fig.01&02)
2. Usually, the height of header will be small, and it will have more load impact for the smaller load distribution area.
3. For structural stability that header needs to have high strength. If structural engineer didn’t specify more strength means it won’t have higher load distribution impact. So, that area requires more reinforcements. (Ref.Fig.03)
4. Structure engineer drawings specifies that detail in separate header beam detail or in core elevation drawing or even in nominal elevation or as a separate document as per the need and availability.
5. While providing reinforcement arrangement for header, we need to consider room space on header beam. So, for header reinforcement arrangement we need to the arrangement in 1:1 scale to ensure that no complication & difficulty will arise in factory as well as site.
6. If any penetration comes at header which is larger in size than for ties spacing, we need to add two ties at both sides of penetrations.
7. We need to raise RFI (Request for information), if header reinforcement details not provided by structural engineers.

Fig.01 (Ref. Precast elevation)

Fig.02 (Ref. Header detail)

Fig.03 (Ref. Header reinforcement detail)