Load testing of concrete structures
Load testing of concrete structures
(OP)
Are there any guidelines on what loads to use when load testing a concrete beams (post-tensioned beam). I am inclined to use the factored design loads. Something tells me I should use the service loads (unfactored loads) and somehow I also feel I should even increase the factored loads further. I do not want to reach failure. This is proof testing. Any thoughts?






RE: Load testing of concrete structures
RE: Load testing of concrete structures
RE: Load testing of concrete structures
Where only a portion of a structural system in doubt is tested and the results of tests are taken as representative of other portions of the system, the test load shall be equal to the factored load Mf, Vf and Pf.
The test load shall be maintained for 24 hours.
The code goes on to stipulate deflection recovery after the test load has been removed.
BA
RE: Load testing of concrete structures
I will check the ACI document to see if this is also addressed.
Thanks.
RE: Load testing of concrete structures
I don't know the basis for the 24 hours. I am simply reiterating what the code says. I might be able to find out more about it in time if you are interested.
BA
RE: Load testing of concrete structures
RE: Load testing of concrete structures
I do not have the latest edition of CSA A23.3-2004 and cannot confirm that the requirements are the same, but that could easily be checked by members of this forum.
BA
RE: Load testing of concrete structures
RE: Load testing of concrete structures
I checked ACI 318 and the procedure was very detailed. It's been years since I deal with a concrete structure.
Your tip was very helpful.
Thanks.
RE: Load testing of concrete structures
ACI 318, Chapter 20 also recommends the test load to remain in place for 24 hours which I am using for this exercise.
RE: Load testing of concrete structures
BA