how to measure the differential settlement
how to measure the differential settlement
(OP)
Hi Sir,
I want to know about the cracks found on wall and beam.
If the cracks are found on wall, we might think that it caused by differential settlement.
Then if there is any tools or instruments that can check and measure this settlement?
It's for existing building.
If I'm not wrong, when on the construction process, usually we create a red mark on column to indicate the level of its column.
And it can be used to keep the elevation in a plain as its designation.
If some columns settle let say 30mm, we can check and know that the red mark has moved 30mm.
But if the existing building that has a finishing or some aesthetic ornament, those red marks has gone.
Then how to check it?
Please your kindly advice about this.
Thank you.
Best Regards
Yusak Santoso
I want to know about the cracks found on wall and beam.
If the cracks are found on wall, we might think that it caused by differential settlement.
Then if there is any tools or instruments that can check and measure this settlement?
It's for existing building.
If I'm not wrong, when on the construction process, usually we create a red mark on column to indicate the level of its column.
And it can be used to keep the elevation in a plain as its designation.
If some columns settle let say 30mm, we can check and know that the red mark has moved 30mm.
But if the existing building that has a finishing or some aesthetic ornament, those red marks has gone.
Then how to check it?
Please your kindly advice about this.
Thank you.
Best Regards
Yusak Santoso





RE: how to measure the differential settlement
http://www.soilstructure.com/
RE: how to measure the differential settlement
if it is just differential settlement you need to check, than assuming the walls and floors were constructed plumb and level, than use a plumb bob and level to re-check them and you can easily verify differential settlement.
RE: how to measure the differential settlement
The fittings you need usually can be found at the hardware store.
The construction rotating light method sometimes is too rough for precise elevation difference work.
Wall cracks can be monitored by drawing a line across the crack and mark two points 2 inches apart. Subsequent readings are the distance between these marks and the off set of the line at the crack. Easy done and can be inconspicuous.
RE: how to measure the differential settlement
Differential settlement can be difficult to measure, except when it is significant. As an example, you really need good initial elevation measurements as a baseline. If you do not have that, differential settlement can only be surmised from observations such as changes in level as described by oldestguy.
Depending on the structural framing system, even small amounts of differential settlement can cause cracking. As an example, a difference of about 1/4" in 20 feet, will crack masonry.
RE: how to measure the differential settlement
RE: how to measure the differential settlement