Working with Site Measure

WORKING WITH EXISTING STEEL

There are big risks involved with working with existing Steel

Things to note.

RL /Height Measurements.

You probably will have to give careful consideration as to what was site measured and what references were used.

Most common errors

1. Heights measured from Floor to underside of beams. But the floor is sloping
2. Beam Cols side or centerline used as a reference. But Size and Orientation of beam not confirmes. Both Size and Orientation should be confirmed
3. The measurement from a wall given. But the wall does not run parallel. By the time the measurement comes to the level we need, measurements are out.
4. References are taken from something which we cannot reproduce accurately on our drawings.
5. Site measurements do not add up to the overall. (This is common.) You have to ask which references we should be using and use the same references to set out the members.
6. Measurement errors could create erection problems. Analyze potential problems and counter for that.
7. Be extremely careful when the site measure is not from the total station. Most of the errors we see are from site measures taken with handheld lasers and measuring tape.

Points we have to take care of.

1. Understand site measure clearly.
2. Understand Rls and setout which can affect our steel, for example beam, and col size, orientation, Sloping floor. Non-parallel beams.
3. ASK FOR PICTURES. PICTURES WILL TELL A LOT. ASK FOR VIDEOS TODAY CREATING VIDEO ON THE MOBILE PHONE IS EXTREMELY EASY SO ASK FOR IT