Some NSCP 2010 Section 207 Errata

If you have been using the NSCP 2010 wind loading provisions (Section 207), you have probably noticed already many typographical and other errors. I have only started to look at it more deeply recently, and here are some I noticed (and that readers have also pointed out):
  1. Section 207.7.1 points to Table 207-11, but there is no Table 207-11.
  2. Table 207-11 should actually be Table 207-5.
  3. Section 207.7.1 makes mention of alpha-overbar and a small letter "L" in Times New Roman as being found in Table 207-11 (Table 207-5), but there are no such variables in Table 207-5.
  4. Alpha-overbar is likely referring to A-overbar, and you will find a small letter "L" in Script font instead of Times New Roman, in Table 207-5.
  5. There are many instances where h, h <= 18 m, or h >= 18 m were not printed.
In these instances, it's easy to make an educated guess as to what the correct versions should say, but it would probably be wise to consult someone wiser. :D


Engineer1 said...

better yet just consult AISC360 (steel), ASCE (wind), UBC and SEAOC (EQ), and ACI (RC).

I hope you can do an article regarding the regulation of construction works ie CE license limitations (if any), stages in construction and the permits they require (and how to acquire them), which branch of the govt is in charge of regulating construction (who approves what), etc.

ronjiedotcom said...

Hi John. Thanks for the reply. That is probably the first thing any engineer should do, and hopefully they have access to those documents. But we should note that these documents likewise also have errata in there. I have already noticed a couple in the ASCE 7 wind load provisions.

Anyway, in consideration of your comment, I have modified the title of this short article to mention that these are only in the wind loading provisions (Section 207) of the NSCP, since I am not yet in any position to review the other sections.

To add to your list of basis codes of the NSCP, engineers can also check the ASCE Manual of Practice #74 (1991) which was a basis of the gust effect factors for lattice towers and transmission cables. An updated version of MOP74 has been released which might also give some clues.

I should stress that the NSCP is still the governing structural code in the Philippines and it is not intended to be used together with other codes, or that other codes are to be used in lieu of the NSCP, unless approved by the proper authorities.

Regarding your second comment, I am afraid I have no knowledge of such. If you do or know anyone who does, maybe you can also contribute to this blog. Or, write a blog article of your own, then tell us about it here so that we can link to it, when appropriate.