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READ AND **REMOVE THIS PAGE** BEFORE PLACING

THE SPECIFICATION SECTION IN THE CONTRACT

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[DIVISION 5 : METALS]{.underline}

SECTION 05120 - STRUCTURAL STEEL

USE: \[Furnishing \] \[and\] \[erecting\] structural steel building
frame.

**NOTES TO SPECIFIER:**

A. Options within paragraphs are identified by enclosure in brackets;
blank spaces enclosed by brackets \[[ ]{.underline}\] provide for
information to be inserted, as appropriate to individual projects.

B. **TO AVOID CONFLICTING REQUIREMENTS AND COSTLY MISTAKES,** the
specifier must edit (delete, substitute or add to the text). The
remaining paragraphs must be renumbered.

C. DELETE FOR FINAL COPY: Notes to the Specifier, located between lines
of asterisks; all \[brackets\], [underlining]{.underline}, **boldface,
**and *italics* within the paragraphs; and this page. (Open Reveal Codes
\[alt F3\] to do this accurately).

D. [To Edit "(Footer B)":]{.underline} (Corel 8). **ENTIRE FOOTER SHOULD
BE BOLDED. **Click in the footer and delete the "Project Name (ftr B)"
text and replace it with the **Name Of The Project (upper/lower case).**
Replace date with current MM/YY (WITHOUT BRACKETS).

E. The Guide Specifications are intended to be continuously reviewed and
revised. User's technical comments are appreciated. Also, other related
or similar specifications that are written "from scratch" that could
benefit others, or other questions can be sent to NSTC A/E Group, ST-110
or call (303) 987-6851.

F. DESIGN NOTES:

1\. **DRAWING DATA REQUIRED: **Framing plans showing size and locations
of columns, girders, beams, and other structural steel members; details
showing sizes, connections, fabrication techniques, welds, and finishes.

**REVISIONS OF THIS SECTION:**

CSI format, editorial changes 10/99

Metric: Not Applicable

Technical Update: 3/00

**SECTION 05120**

**STRUCTURAL STEEL**

**[PART 1: GENERAL]{.underline}**

**1.1 SUMMARY**

**A. Section Includes: Providing and erecting structural steel
throughout the project. See drawings and schedules for type, locations,
quantity and details required to complete work. **

**B. Related Sections**

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**LIST ITEMS OF WORK THAT MIGHT LOGICALLY BE FURNISHED AND INSTALLED
UNDER THIS SECTION, BUT INSTEAD ARE SPECIFIED IN ANOTHER SECTION. THIS
ARTICLE IS RARELY REQUIRED.**

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**1.2 SUBMITTALS**

**A. General: Submittals shall be according to \[Section 01009 - General
Information and Requirements.\] \[Section 01330 - Submittal
Procedures.\] \[and\] \[Section 01331 - Certificates.\]**

**B. Shop and Erection Drawings: Submit \[five\] copies of shop and
erection drawings of structural steel work for approval of size and
arrangement of primary and secondary members and strength of
connections. Using AWS welding symbols show size, length, and type of
each weld. Errors in dimensions shown on shop drawings shall be the
responsibility of the Contractor. Fabricating of material, prior to
approval shall be at the risk of the Contractor.**

**C. Manufacturer's Literature: Submit \[five\] copies of the
manufacturer's descriptive data of the primer paint to be used.**

**1.3 DELIVERY, STORAGE, AND HANDLING**

**A. Delivery: Fabricated steel shall be carefully loaded and unloaded
from transport vehicles to preserve structural integrity. Inspect steel
on delivery to ascertain freedom from damage during transport and
unloading procedures.**

**B. Storage: Steel shall be stored off the ground and under a
protective wrapping to prevent moisture access.**

**1.4 SEQUENCING**

**A. Anchor bolts and other incidental items of structural steel
required to be built into concrete or masonry shall be furnished to
respective trades at proper times, and shall include instructions or
templates for their installations.**

**1.5 PROJECT AND SITE CONDITIONS**

**A. Installation Conditions: Necessary anchor bolts shall be accurately
placed and positioned in concrete foundations, and methods for temporary
guy wiring or other bracing shall be readily available. A sufficient
quantity of primer paint shall be onsite to touch up abrasions
encountered during delivery, storage and erection.**

**[PART 2: PRODUCTS]{.underline}**

**2.1 MATERIALS**

**A. Steel**

**1. Rolled Steel Shapes: ASTM A 36.**

**2. Rolled Steel Plates and Bars: ASTM A 36.**

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**EDIT WIGHT CLASS IF EXTRA STRONG OR DOUBLE EXTRA STRONG PIPE IS
REQUIRED.**

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**3. Steel Pipe: ASTM A 53, Type 3, Grade B, Standard Weight Class**

**4. Hot Formed Structural Steel Tubing: ASTM A 501.**

**5. Cold-Formed Structural Steel Tubing: ASTM A 500, Grade B**

**B. Fasteners and Anchors: **

**1. Bolts, Nuts, and Washers: ASTM A 307, grade A.**

**2. Unfinished Threaded Fasteners: ASTM A 307.**

**3. High-Strength Threaded Fasteners: ASTM A 325 or 490**

**4. Weldable Headed Type Steel Studs: AWS D 1.1, Type B**

**C. Primer Paint: ASTM D 478; rust inhibiting, lead and
chromate-free.**

**D. Grout: Premixed, non-shrink, non-metallic, hydraulic-cement grout
complying with ASTM C 1107.**

**2.2 FABRICATION**

**A. Structural Steel: Fabricate structural steel according to AISC S
302 and the Uniform Building Code. Punch and drill steel as specified
for attachment of other materials thereto.**

**B. Welding: AWS D 1.1 E70XX electrodes are required.**

**C. Shop Painting: Clean structural steel of rust, sand or other
foreign matter and apply one coat of rust-inhibiting primer paint. Do
not paint surfaces to be embedded in concrete.**

**D. Galvanizing: **

**1. Steel shapes, Plates, and Bars: ASTM A 123**

**2. Hardware: ASTM A 153**

**E. Finishes: Do not paint galvanized surfaces or steel to be encased
in concrete or masonry. Extend priming of partially embedded members to
a depth of 2 inches (50 mm).**

**[PART 3: EXECUTION]{.underline}**

**3.1 ERECTION**

**A. Surface Conditions: Examine the areas and conditions under which
work of this section will be performed. Verify elevations of bearing
surfaces and locations of anchorages. Correct conditions detrimental to
timely and proper completion of the work. Do not proceed until
unsatisfactory conditions are corrected.**

**B. Temporary Shoring and Bracing**

** 1. Provide temporary shoring and bracing members with connections of
sufficient strength to bear imposed loads.**

** 2. Provide temporary guy lines to achieve proper alignment of the
structure as erection proceeds.**

**3. Remove temporary connections and members when permanent members are
in place and the final connections have been made.**

**C. Erect structural steel and maintain erection tolerances in
accordance with AISC S 208.**

**D. Align column bases and bearing plates with wedges or shims. When
framework is plumb, grout solid under entire bearing surfaces of plates
following grout manufacturer's instructions.**

**E. Do not use gas cutting torch for field correction of fabrication
without written approval from Contracting Officer.**

**F. Field Painting**

** 1. Clean connections and abraded surfaces where primer coat has been
removed in areas that will not be concealed in the finished work.**

** 2. Apply a spot coat or rust-inhibiting primer to match shop coat.**

**[PART 4: MEASUREMENT AND PAYMENT]{.underline}**

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**WHEN A \"LUMP SUM\" CONTRACT IS USED, DELETE THE TITLE PART 4:
MEASUREMENT AND PAYMENT, AND BOTH ARTICLES FROM THIS SECTION.
MEASUREMENT AND PAYMENT WILL BE ADDRESSED IN PART 4 OF SECTION 01009 OR
SECTION 01010.**

**WHEN NOT A \"LUMP SUM\" CONTRACT, SELECT APPLICABLE PHRASES; USE THE
\"NO MEASUREMENT\" PHRASE WHEN THE PAY ITEM IN THIS SECTION IS NOT
INCLUDED IN THE BID SCHEDULE.**

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4.1 METHOD OF MEASUREMENT

A. Units: The work described in this section will \[not be measured for
payment.\] \[be measured and paid for on a lump sum basis.\]

4.2 BASIS OF PAYMENT

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WHEN NOT A \"LUMP SUM\" CONTRACT, SELECT APPLICABLE PHRASES; USE THE
\"NO DIRECT PAYMENT\" PHRASE WHEN THE PAY ITEM IN THIS SECTION IS NOT
INCLUDED IN THE BID SCHEDULE.

WHEN NOT A \"LUMP SUM\" CONTRACT AND PAYMENT IS TO BE MADE UNDER THIS
SECTION, SELECT THE PAY ITEM. DO NOT CHANGE PAY ITEM NUMBER.

WHEN MORE THAN ONE DIAMETER OR GAUGE IS SPECIFIED FOR ANY PAY ITEM,
LETTER SUFFIXES WILL BE ADDED AFTER THE PARENTHESIS OF THE ITEM NUMBER.
WHEN GOVERNMENT-FURNISHED PROPERTY IS SPECIFIED FOR PAY ITEMS, THE
LETTER SUFFIX GS WILL BE ADDED AFTER THE PARENTHESIS OF THE ITEM NUMBER.

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A. Payment: \[No direct payment for the work described under this
section will be made. Consideration for this item shall be included in
the bid price for other items of the Contract.\] \[Prices and payment
will be full compensation for the work described in this section.
Payment will be made under:\]

[Pay Item]{.underline} [Pay Unit]{.underline}

05120(01) Structural Steel Lump Sum

END OF SECTION