Construction Code: (no title)

Title:
Name:: Luis D. Aponte-Bermúdez
Date:: 4/20/2018
Entity/Company:: Aponte Bermudez & Associates
Submitted on Behalf::
Address:: 1528 CALLE EPIFANIO VIDAL, PASEO LOS ROBLES
City:: Mayaguez
State:: PR
Zip:: 00682
Phone:: 787-217-2957
Ext::
Fax::
e-mail:: lapontebermudez@gmail.com
CODE IDENTIFICATION: RB
PROPONENT:: Luis D. Aponte Bermúdez, PhD., P.E.
REPRESENTING:: My self
CODE IDENTIFICATION label::
CHAPTER/SECTION:: Chapter 3 Building Planning / New Section R301.2.5
PROPOSED TEXT:: R301.2.5 Atmospheric corrosion.

 

All the environment of Puerto Rico is extremely
corrosive to exposed materials. Corrosion-resistant materials or protection shall be provided
for all structural members connections, fasteners,
metal straps, and anchoring mechanism.

REASON/SUBSTANTIATION/BIBLIOGRAPHY::
The Commonwealth
of Puerto Rico is an archipelago with two
municipal islands in the Caribbean. The tropical climate zone experiences hot and humid
weather with abundant rainfall due to heat convection causing thunderstorms that
can occur every day over specific periods. Such conditions are of great significance to the corrosion due to the combined
effects of atmospheric temperature, humidity, and suspended impurities [1]. Recent studies [2-3] about Saharan Air Layer dust
and sea-salt aerosols over Puerto Rico reveals that at elevated inland locations
Saharan dust is the primary source of non-sea salt sulfate in the atmosphere. Field
observations after hurricane Maria (2017) conducted by FEMA Mitigation
Assessment Team (MAT) during October and December 2017 evidence that corrosion at
column base plates likely caused structural failures of steel frame structures
under high wind at coastal and inland
locations in Punta Santiago, Humacao, and Cayey, PR, respectively. (I will submitt also via email to inclu deimages)





After hurricane Georges (1998) FEMA MAT report P-339
[4]
field observation reveal


 

“that
many roofs were corroded because their
galvanized coating was not very resistant to corrosion and many were also not
field painted. Use of an aluminum-zinc alloy coating (Galvalume) greatly
enhances corrosion protection and is particularly beneficial for roofs located
near salt water. Many exposed concrete roofs leaked during the hurricane.
Unless protected with a roof covering, these decks could eventually experience
problems with corrosion of the slab reinforcement.”

 

Also, one of the hurricane Georges (1998) FEMA MAT report recommendation
was that “Corrosion protection for clips,
fasteners, metal panels, and flashing within 3,000 feet of salt water could be addressed through product approval. It could
also be addressed through an amendment to
the building code.” In addition, the vulnerability
of coastal areas to corrosion are highlighted in the following FEMA
publications: NFIP Technical Bulletin 8, Corrosion Protection of Metal
Connectors in Coastal Areas [5], FEMA P-499, Home Builder's
Guide to Coastal Construction [6], and FEMA P-55, Coastal
Construction Manual: Principles and Practices of Planning, Siting, Designing,
Constructing, and Maintaining Residential Buildings in Coastal Areas [7].

 

Bibliography                                                                                                                                 

 

[1]          “Corrosion
- AMS Glossary.” [Online]. Available:
http://glossary.ametsoc.org/wiki/Corrosion. [Accessed: 20-Apr-2018].

 

[2]          H. Maring, D. L. Savioe, M. A. Izaguirre, L. Custals, and J. S.
Reid, “Vertical distributions of dust and sea‐salt aerosols over Puerto Rico
during PRIDE measured from a light aircraft,” Journal of Geophysical
Research: Atmospheres, vol. 108, no. D19, Oct. 2003.

 

[3]          J. D. Allan et al., “Clouds and
aerosols in Puerto Rico – a new evaluation,” Atmos. Chem. Phys., p. 17,
2008.

 

[4]          “FEMA 339, Building Performance
Assessment Team (BPAT) Report - Hurricane Georges in Puerto Rico (1999) |
FEMA.gov.” [Online]. Available:
https://www.fema.gov/media-library/assets/documents/615. [Accessed:
20-Apr-2018].

 

[5]          “Technical Bulletin 8, Corrosion
Protection of Metal Connectors in Coastal Areas (1996) | FEMA.gov.” [Online].
Available: https://www.fema.gov/media-library/assets/documents/3509. [Accessed:
20-Apr-2018].

 

[6]          “FEMA P-499, Home Builder’s Guide to
Coastal Construction (2010) | FEMA.gov.” [Online]. Available:
https://www.fema.gov/media-library/assets/documents/6131. [Accessed:
20-Apr-2018].

 

[7]          “FEMA P-55, Coastal Construction
Manual: Principles and Practices of Planning, Siting, Designing, Constructing,
and Maintaining Residential Buildings in Coastal Areas, 4th Edition (2011) |
FEMA.gov.” [Online]. Available:
https://www.fema.gov/media-library/assets/documents/3293. [Accessed:
20-Apr-2018].

COST IMPACT:: This proposal will increase the cost of construction since it
will require using corrosion resistant
materials or protection for structural members
connections, fasteners, metal straps, and anchoring mechanism for all
the archipelago of Puerto Rico.






Myself: No
Other: No
PROPOSAL NUMBER #: IRC-RB
field4:
myself: Yes
Firma: Luis D. Aponte-Bermúdez
Please type or print full name: Luis D. Aponte-Bermúdez
Company: Aponte Bermudez and Associates
Entity Represented: Self
Contact info: Phone: 787-217-2957
e-mail: lapontebermudez@gmail.com
Date signed: April 20, 2018
field15: No
group:

Created at 4/20/2018 9:58 PM by
Last modified at 4/20/2018 9:58 PM by
 
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