AWWA D103 Factory-Coated Bolted Steel Tanks for Water Stor

[ir_71]

ANSI/AWWA D103-09, AWWA Standard for Factory-Coated Bolted Steel Tanks for Water Storage

Author: AWWA | Size: 9.2 MB | Format: PDF | Publisher: ANSI/AWWA | Year: 2009 | pages: 145

The purpose of this standard is to provide minimum requirements for the design, construction, inspection, and testing of new cylindrical, factory coated, bolted carbon-steel tanks for the storage of water. This standard is only applicable to tanks with a base elevation substantially at ground level.
1.1.1 Tank roofs. All tanks storing potable water shall have roofs. Roofs may be column-supported, self-supported, or aluminum dome. Tanks storing nonpotable water may be constructed without roofs.

1.1.2 Items not described. This standard does not cover all details of design and construction. Details that are not addressed shall be designed and constructed to be as adequate and as safe as those that would otherwise be provided under this standard. This standard is not applicable to tanks of corrugated construction. This standard is not applicable to tanks constructed of stacked plates or sheets laminated to form multiple layers.

1.1.3 Local requirements. This standard is not intended to cover storage tanks erected in areas subject to regulations more stringent than the requirements contained within this standard. In such cases, this standard should be followed where it does not conflict with local requirements. Where more stringent local, municipal, county, or state government requirements apply, such requirements shall be specified and this standard shall be interpreted to supplement them.

Major revisions

This edition of the standard includes numerous corrections, updates, revisions, and new material to clarify some of the existing requirements. Sections were rearranged and revisions made to eliminate contractual language. Metric equations and dimensions were added.

Sec. 1 General was revised to clarify that corrugated tanks and tanks constructed of multiple layers of steel were not applicable to the standard.

Sec. 2 References was revised and updated.

Sec. 4 Materials was revised and includes additional grades of plates, sheets, structural shapes, hardware, and other tank construction materials.

Sec. 5 General Design was revised to include maximum thickness of flat-panel shell plates of 0.5 in. (12.7 mm), foundation anchor bolt Sec. 5.9.4 was revised, and reinforcing criteria for diameter of connections was decreased from 4 in. (102 mm) to 2 in. (51 mm). Bolted piping flanges Figure 2 was eliminated.

Sec. 7 Accessories for Tanks was revised regarding ladder requirements to bring into compliance with updated OSHA regulations 29 CFR Part 1910.

Sec. 8 Welding was revised and updated regarding qualifications, procedures, and inspection.

Sec. 14 Seismic Design and Sec. 15 Wind Design were revised extensively to reflect the requirements of the International Building Code and ASCE 7.

Appendix A Commentary for Factory-Coated Bolted Carbon-Steel Tanks for Water Storage is added to provide background information for many of the requirements contained in the standard.

Other general and specific revisions, additions, and corrections were made throughout the standard.

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[limber_jmc]

Dear ir_71

Please reupload again AWWA D103-09.

Thanks!

[pedzaquino]

pls renew link. or if theres a newer version of this manual. pls share.

thank you