Master Specifications Revision 0 Approval Seal · 2013. 9. 25. · ASTM A307 Specification For...

P a r t 4

Skanska Shimrnick

Herzog A Joint VinU»r AuatUDm wtlh LAM ITY Lin

Master Specifications Revision 0 Approval Seal

1/7 /3

$ 'Vl

o $ W ,v

FIVV Sv

Project Engineer Registered Civil Engineer

DATE

Specifications:

03 35 00 - Concrete Finishing

05 12 35 - Structural Steel & Miscellaneous Metal for Bridges

Santa Clam Valley Transportation Authority

• y d E X C E P T I O N S T A K E N (NET) MAKE CORRECTIONS NOTED (\ICN) AMEND AND RESUBMIT (A/R)

Any action shown above is subject to the terms of lite contract and does not relieve the Contractor of any of its obligations

under the contract, including design and detailing.

Contract No,:

I3v

DB11002F

Date:' 8/14/13

Design Unit Approval

For Construction (Only documents on attached index statused MCN or NET)

T i ^ i f r g i A l£« i A QAlY COMPANY

TVP-UMINTERNATIONAL vjng ''CC25 { pfcinncrs | soL'Mliys

d l M c k ^ t i a / h i "EmlleJiiwin / Date

13

BART Project Manager

TECHNICAL SPECIFICATIONS

July 17, 2013 05 12 35 - 1 Contract C700

Structural Steel and Miscellaneous Metal for Bridges Rev. 0

SECTION 05 12 35

STRUCTURAL STEEL AND MISCELLANEOUS METAL FOR BRIDGES

PART 1 - GENERAL

1.01 SECTION INCLUDES

A. Structural steel for bridges

B. Miscellaneous metal for bridges

1.02 RELATED SECTIONS

A. Section 01 33 00, Shop Drawings, Product Data, and Samples

B. Section 01 45 00, Quality Control.

C. Section 03 61 11, Non-Shrink Grout.

D. Section 05 05 33, Metal Welding for Bridges.

E. Section 09 91 10, Cleaning and Painting Structural Steel and Miscellaneous Metal for

Bridges.

F. Section 31 55 00, Deep Soil Mix Walls.

1.03 MEASUREMENT AND PAYMENT

Separate measurement or payment will not be made for Work required under this Technical

Specifications Section. All costs in connection with the Work specified in this Technical

Specifications Section will be considered to be included with the related item of Work in the Price

Schedule or incidental to the Work.

1.04 REFERENCES

A. American Institute of Steel Construction (AISC):

1. AISC 303 Code of Standard Practice for Steel Buildings and

Bridges

2. AISC 360 Specification for Structural Steel Buildings

B. Research Council on Structural Connections (RCSC):

1. RCSC S348 Specification for Structural Joints Using ASTM A325

or A490 Bolts

STRUCTURAL STEEL AND MISCELLANOUS METAL FOR BRIDGES

Contract C700 05 12 35 - 2 July 17, 2013

Rev. 0 Structural Steel and Miscellaneous Metal for Bridges

C. American Railway Engineering and Maintenance of Way Association (AREMA): Manual

for Railway Engineering (Fixed Properties), herein referred to as the "AREMA Manual",

Chapter 15, "Steel Structures".

D. ASTM International (ASTM):

1. ASTM A6/A6M Specification for General Requirements for Rolled

Structural Steel Bars, Plates, Shapes, and Sheet Piling

2. ASTM A36/A36M Specification for Carbon Structural Steel

3. ASTM A53/A53M Specification for Pipe, Steel, Black and Hot-Dipped,

Zinc-Coated, Welded and Seamless

4. ASTM A108 Specification for Steel Bar, Carbon and Alloy, Cold-

Finished

5. ASTM A193/A193M Specification for Alloy-Steel and Stainless Steel

Bolting Materials for High Temperature Service

6. ASTM A307 Specification For Carbon Steel Bolts and Studs, 60,000

psi Tensile Strength

7. ASTM A325 Specification for Structural Bolts, Steel, Heat Treated,

120/105 ksi Minimum Tensile Strength

8. ASTM A354 Specification for Quenched and Tempered Alloy Steel

Bolts, Studs, and Other Externally Threaded Fasteners

9. ASTM A449 Specification for Hex Cap Screws, Bolts and Studs,

Steel, Heat Treated, 120/105/90 ksi Minimum Tensile

Strength, General Use

10. ASTM A490 Specification for Structural Bolts, Alloy Steel, Heat-

Treated, 150 ksi Minimum Tensile Strength

11. ASTM A499 Specification for Steel Bars and Shapes, Carbon Rolled

for “T” Rails.

12. ASTM A500/A500M Specification for Cold-Formed Welded and Seamless

Carbon Steel Structural Tubing in Rounds and Shapes

13. ASTM A501 Specification for Hot-Formed Welded and Seamless

Carbon Steel Structural Tubing

14. ASTM A588/A588M Specification for High-Strength Low-Alloy Structural

Steel, up to 50 ksi [345 MPa] Minimum Yield Point,

with Atmospheric Corrosion Resistance


July 17, 2013 05 12 35 - 3 Contract C700


15. ASTM A615/A615M Specification for Deformed and Plain Carbon-Steel

Bars for Concrete Reinforcement

16. ASTM A706/A706M Specification for Low-Alloy Steel Deformed and Plain

Bars for Concrete Reinforcement

17. ASTM A709/A709M Specification for Structural Steel for Bridges

18. ASTM D1785 Specification for Poly(Vinyl Chloride) (PVC) Plastic

Pipe, Schedules 40, 80, and 120

19. ASTM F959 Specification for Compressible-Washer-Type Direct

Tension Indicators for Use with Structural Fasteners

E. American Welding Society (AWS):

1. AWS D1.1/D1.1M Structural Welding Code - Steel

2. AWS D1.5M/D1.5 Bridge Welding Code

F. State of California, Department of Transportation (Caltrans), Standard Specifications:

1. Section 55, Steel Structures

2. Section 75, Miscellaneous Metal

G. The Society for Protective Coatings (SSPC):

1. SSPC-Paint 25 Zinc Oxide, Alkyd, Linseed Oil Primer for Use Over

Hand Cleaned Steel, Type I and Type II

1.05 DESCRIPTION

A. Structural steel for bridges includes the requirements for furnishing, fabricating, priming,

galvanizing and erecting structural steel, complete in place in accordance with the details

shown on the Construction Drawings, the provisions of Section 55, "Steel Structures," of

the Caltrans Standard Specifications and these Technical Specifications.

B. Structural steel consists of the following:

1. Structural steel girders, shapes, plates, diaphragms, anchorages, and appurtenances

comprising the steel superstructures.

C. Miscellaneous metal for bridges includes the requirements for furnishing, fabricating,

priming, galvanizing and erecting miscellaneous metal, complete in place in accordance

with the details shown on the Construction Drawings, the provisions of Section 75,

"Miscellaneous Metal," of the Caltrans Standard Specifications and these Technical

Specifications.


Contract C700 05 12 35 - 4 July 17, 2013


D. Miscellaneous metal for bridges consists of the following:

1. Column casings shall consist of cleaned and painted structural steel shells filled with

grout as shown on the Construction Drawings and conforming to the provisions in

Section 55, "Steel Structures," of the Caltrans Standard Specifications and these

Technical Specifications.

2. Restrainers shall consist of cable restrainer units and component parts as shown on

the Construction Drawings and conforming to the provisions in Section 75,


Specifications.

3. Soffit access door assemblies shall consist of access doors, hinges and anchorage

devices as shown on the Construction Drawings, and conforming to the provisions of

Section 75, "Miscellaneous Metal," of the Caltrans Standard Specifications and these

Technical Specifications.

1.06 SUBMITTALS

A. General: Refer to Section 01 33 00 – Submittal Procedures, and Section 01 33 23 – Shop

Drawings, Product Data, and Samples, and the following for submittal requirements and

procedures.

B. Shop Drawings:

1. Shop Drawings for steel fabrications shall show details of members, including

connections, sizes, spacing of bolts and welds. Shop Drawings shall show the

marking and position of each member, erection plans and the limits of paint and

galvanizing applications. A complete anchor bolt setting plan for the execution of the

work shall be submitted.

2. Shop Drawings and calculations for temporary shoring and bracing shall be submitted

for review. The Shop Drawings shall show layout, sizes of members and connection

details. Calculations shall show all stresses in members and connections, from dead,

live, and lateral loads. Shop Drawings and calculations for temporary shoring and

bracing shall be stamped and signed by a civil or structural engineer registered in the

State of California.

C. Mill Certificates:

1. Submit Mill Certificates for each grade of steel for each heat to be used on the

Project.

2. Mill Certificates shall include name of mill, date of rolling, date of shipping, ultimate

tensile strength, yield strength, and percent of elongation.


July 17, 2013 05 12 35 - 5 Contract C700


3. Mill Certificates shall be furnished with each lot of material shipped to the site and

shall be signed by the Contractor which will serve to certify that all structural steel

materials installed comply with specified requirements.

4. When Mill Certificates cannot be provided, hire a professional testing laboratory to

verify compliance of each type of material to be used and provide laboratory test

reports. The cost of testing shall be paid for by the Contractor.

5. Weld electrode manufacturer's certificate of compliance shall be submitted for each

electrode type being used.

D. Laboratory Test Reports:

1. Laboratory Test Reports shall show the name of testing agency, date of testing, types

of tests performed and shall be signed by a registered civil or structural engineer in

the State of California.

2. When required by other portions of these Specifications, Laboratory Test Reports

shall be submitted for each type of steel for each heat to show compliance with

appropriate ASTM Standards and these Technical Specifications.

E. Welding Quality Control: Submittal for welding quality control shall be in accordance with

the requirements of Section 05 05 33 – Metal Welding for Bridges.

F. Attention is directed to Section 75-1.035, "Bridge Joint Restrainer Units," of the Caltrans

Standard Specifications for additional submittal requirements.

G. Qualifications of independent testing laboratory: Refer to Section 01 45 00 – Quality

Control.

1.07 QUALITY CONTROL

A. Codes and Standards: Comply with all federal, state, and local codes and safety

regulations. In addition, the fabrication, priming, and erection of structural steel and

miscellaneous metal for bridges shall comply with all the applicable provisions of the

following codes, specifications, and standards, except where more stringent requirements

are shown or specified:

1. AISC 360, Specification for Structural Steel Buildings.

2. AISC 303, Codes of Standard Practice for Steel Buildings and Bridges.

3. RCSC S348, Specifications for Structural Joints using ASTM A325 or A490 Bolts.

4. All welding for miscellaneous metal shall be performed in accordance with the

provisions of AWS D1.1/D1.1M.


Contract C700 05 12 35 - 6 July 17, 2013


5. All welding for structural steel for bridges shall be performed in accordance with the

provisions of AWS D1.5M/D1.5 and Technical Specifications Section 05 05 33 –

Metal Welding for Bridges.

B. Sampling, Testing and Inspection:

1. The Contractor’s approved independent testing laboratory shall perform sampling,

testing, and inspections in accordance with the provisions herein and Section 01 45 00

- Quality Control. Attention is also directed to Article 2.03 “Source Quality Control”

and to Article 3.02 “Field Quality Control” in this Section.

2. Notify the VTA at least 48 hours in advance of sampling, tests and inspections, being

performed by the independent testing laboratory. The VTA may elect to observe

these procedures. Provide samples and facilities for inspection to the VTA if

requested.

3. The independent testing laboratory shall collect samples of materials for testing in

accordance with the provisions outlined herein and as directed by the VTA.

4. Identify each lot of fabricated steel to be shipped to the site by assigning an individual

lot number that identifies steel by heat number and shall be tagged in such a manner

that each such lot can be accurately identified at the Jobsite.

5. Remove all unidentified structural steel, miscellaneous metal and anchorage

assemblies received at the site.

C. Welding Quality Control: Develop and implement a Welding Quality Control Program in

accordance with the provisions of Section 05 05 33 – Metal Welding for Bridges.

1.08 DELIVERY, STORAGE, AND HANDLING

A. Avoid bending, scraping, and overstressing the steelwork. Block with wood, or otherwise

protect, projecting parts which may be bent or damaged.

B. Mark weight and piece (mark) number, corresponding to Shop Drawings showing erection

sequence, on all members. Match-mark all shop pre-fitted members.

C. Ship small parts, such as bolts, nuts, washers, pins, fillers, clips, and small connecting

plates and anchors, in boxes, crates, or barrels. Pack separately each length and diameter of

bolt and each size of nut and washer. Plainly mark an itemized list and description of the

contents on the outside of each container.

D. Load, transport, unload, and store structural steel materials in such a manner that the metal

is kept clean and free from injury. Store materials above ground on platforms, skids, or

other supports, and cover and protect from corrosion.

E. Handle and store beams and girders in such a manner that they will have the required

camber after erection.


July 17, 2013 05 12 35 - 7 Contract C700


PART 2 - PRODUCTS

2.01 MATERIALS

A. Structural steel for bridges shall conform to the provisions of Section 55, "Structural Steel,"

of the Caltrans Standard Specifications and these Technical Specifications.

1. Rolled Steel Beams: Rolled steel beams for bridges shall conform to ASTM A709

Grade 50W. All steel fastened to these beams shall conform to ASTM A588. Steel

soldier piles for DSM walls are specified in Section 31 55 00 – Deep Soil Mix Walls.

2. Structural Steel Tubes: Structural steel tubes shall conform to the requirements of

ASTM A500/A500M, Grade B, Fy = 46 KSI.

3. Steel Pipe: ASTM A53/A53M, Types E or S, Grade B, with sulphur not exceeding

0.05%.

4. Arc-welding Electrodes: Arc-welding electrodes shall be E70 series electrodes for

ASTM A36/A36M, A500/A500M, A501, and A53/A53M material, E80 Series for

ASTM A706/A706M reinforcing steel and E90 series for ASTM A615/A615M

reinforcing steel. Electrodes shall be as recommended by their manufacturers for the

positions and conditions of actual use. Weld metal toughness shall be reported on the

electrode manufacturer's certificate of compliance. All electrodes shall be low

hydrogen with a minimum CVN value of 20 ft-lbs at minus 20 degrees F.

Exceptions: Metal deck welding, stair and handrail welding, light gage steel welding

for bridges.

5. High Strength Bolts: High strength bolts (HSB) shall conform to ASTM A325 or

A490 Type 1 SC (slip-critical). Bolts for A709 and A588 steel connections shall be

Type 3 SC. Type 1 and Type 3 bolts shall not be twist-off type bolts.

6. Machine Bolts: Machine bolts (MB) shall conform to ASTM A307, manufactured to

American Standard Bolt and Nut dimensions with "Free Fit - Class 2" threads. All

unfinished bolts shall have an approved lock washer under nut.

7. Prime Coat: Prime coat for all members shall meet the requirements of SSPC-Paint

25 or acceptable equal.

8. Smooth Rods: Smooth Rods shall conform to ASTM A36/A36M.

9. Anchor Bolts: Anchor bolts shall be galvanized and conform to ASTM A36/A36M

or ASTM A307 Grade A or B.

10. Headed Studs, Deformed Bar Anchors, and Threaded Studs: Headed Studs shall

conform to ASTM A108; Deformed Bar Anchors shall conform to ASTM A496 and

Threaded Studs shall conform to ASTM A108. Products meeting these requirements

are H4L or S3L, D2L, and CPL respectively, as manufactured by TRW Nelson Stud

or equal. Welding of deformed bar anchors shall conform to AWS D1.1 requirements


Contract C700 05 12 35 - 8 July 17, 2013


for Type C studs. Welding for headed studs and threaded studs shall conform to

AWS D1.1 requirements for Type B studs.

11. High Strength Rods: High strength rods shall conform to ASTM A193/A193M B7 or

ASTM A449.

12. Utility Brackets: Steel for utility brackets shall be painted and conform to ASTM

A36/A36M. Fasteners shall be Type 3 (HSB).

13. Expansion anchors shall be prequalified per Caltrans website:

www.dot.ca.gov/hq/esc/approved_products_list

B. Miscellaneous metal for bridges shall conform to the provisions of Section 75,


Specifications.

1. An approved thread locking system, consisting of a cleaner, primer and anaerobic

adhesive shall be applied where shown on the Construction Drawings. Lubricants

and foreign materials shall be removed from the threaded areas of both parts using

cleaner and small wire brush. The primer shall be applied to cover the threaded areas

of both parts. The anaerobic adhesive shall be applied to fill the male threads in the

area of the final position of the nut. The nut shall be installed at the location or to the

torque shown on the Construction Drawings, and an additional fillet of anaerobic

adhesive shall be applied completely around the exposed junctions of the nut and

male part.

2. For drainage piping 8 inches in diameter and smaller, which is: (1) enclosed in a box

girder cell and exposed for a length not greater than 20 feet, or (2) encased in

concrete, the Contractor shall have the option of substituting polyvinyl chloride

(PVC) plastic pipe, with the same diameter and minimum bend radius as shown on

the Design Drawings, for welded steel pipe. The PVC plastic pipe shall be Schedule

40 conforming to ASTM D1785. If PVC plastic pipe is substituted for welded steel

pipe, the quantity of drainage piping will be computed on the basis of the dimensions

and details shown on the Design Drawings and no change in the quantities to be paid

for will be made because of the use by the Contractor of PVC plastic pipe.

2.02 FABRICATION

A. Structural steelwork shall conform to the applicable requirements of AISC 360. Structural

steelwork for railroad and transit rail bridges shall conform to applicable requirements of

the AREMA Manual.

B. Welding and welded connections shall conform to Section 05 05 33 - Metal Welding for

Bridges.

1. Welding shall be by operators who are qualified by test in accordance with AWS

"Standard Qualification Procedure" to perform type of work required.


July 17, 2013 05 12 35 - 9 Contract C700


2. Tack welds, arc-gouging and flame cutting shall not be performed without adequate

preheat or incorporation into the final weld.

3. The filler metal manufacturer's published recommendations shall be the basis for

determining the allowable range of essential variables for the prequalified WPS.

4. Welds where exposed to view shall be ground and dressed smooth, so that the shape

and profile of the item welded is maintained.

C. Steel members and metal fabrications shall be prefabricated and preassembled in the factory

or shop as far as practicable.

D. Form and fabricate the work to meet installation conditions. Include accessories to

adequately secure the work in place.

E. Cutting, drilling, punching, and welding shall be neatly performed with burrs and rough

edges removed. Remove all weld flux.

F. Straighten rolled material, if necessary, before it is laid out for fabrication, in a manner

conforming to the mill tolerances specified in ASTM A6/A6M, and by a process and in a

manner which will not injure the material. Sharp kinks and bends will be cause for

rejection of the material. Heat shrinking of low-alloy structural steel will not be permitted.

G. Perform shearing, flame cutting, and chipping carefully and accurately so as not to induce

residual stress in the metal being cut. The radii of re-entrant gas-cut fillets shall be not less

than 3/4 inch and as much larger as practicable. Perform flame cutting in such manner that

metal being cut is not carrying stress. Cut edges exposed in the finished work shall be

machine cut, sheared, or flame cut, and ground flush. All working points shall be

maintained.

H. Fabricate bearing stiffeners and stiffeners intended as supports for concentrated loads as

indicated. Mill or grind bearing surfaces of these stiffeners.

I. Bend load-carrying cold-rolled steel plates cold at right angles to the direction of rolling.

The radius of bend, measured to the concave face of the metal, shall be not less than

indicated in the following table, in which T is the thickness of the plate.

Angle Through Which Plate is Bent Minimum Radius

61 to 120 degrees 1.0 T

121 to 150 degrees 2.0 T

1. If a shorter radius is indicated, bend the plate hot. Before bending, round plate edges,

where bending occurs, to a radius of 1/16 inch.

J. Connections shall be bolted or welded as indicated. All high strength bolted connections

shall be ASTM A325-SC (slip critical) connections.


Contract C700 05 12 35 - 10 July 17, 2013


K. Holes shall be drilled or punched at right angles to the surface of the metal and shall not be

made or enlarged by burning. Holes in base or bearing plates shall be drilled. Holes shall

be provided in members to permit connecting the work of other trades. Holes shall be

punched or drilled 1/16 inch larger than the diameter of the bolt.

L. For high-strength bolting, assemble joints and install bolts in accordance with RCSC S348.

Hardened-face washers shall be used for all connections using ASTM A325 and A490

bolts. Assembly of joints using load-indicator washers shall conform to ASTM F959.

High-strength bolting shall be inspected by a qualified inspector employed by the

independent testing laboratory.

M. For items bearing on concrete, provide steel bearing plates and anchors as indicated. Base

or bearing plates shall be leveled by means of adjustment nuts. Templates shall be

furnished, together with instructions for setting of anchors, anchor bolts, and bearing plates.

Assure that anchors and related items are properly set in concrete during the progress of the

work.

N. Fabricate metal bearing surfaces which will come in contact with bearing pads or grout, flat

to within 1/8 inch tolerance in 12 inches and to within 3/16 inch overall.

O. Include reinforcing angles, clip angles, plates, punched straps, brackets, and hangers as

required to complete the work as indicated.

P. Provide drainage holes in structural components where water may accumulate without

escape.

Q. Fabricate architecturally exposed structural steel members straight within one-half of the

standard camber and sweep tolerances permitted by ASTM A6/A6M.

R. Painting: Cleaning and painting structural steel and miscellaneous metal for bridges shall

be in accordance with Section 09 91 10 - Cleaning and Painting Structural Steel and

Miscellaneous Metal for Bridges.

S. Metalwork shall be fabricated by firms or shops experienced and skilled in the custom

fabrication and construction of metal fabrications and miscellaneous metalwork. There shall

be no exposed screws, bolts, and fasteners in the finished work, except as indicated or

required.

T. Metal fabrications shall be prefabricated and preassembled in the factory or shop as far as

practicable.

U. Form and fabricate the work to meet installation conditions. Include anchors, fasteners, and

accessories to secure the work in place, as indicated.

V. The Contractor may furnish standard manufactured products for components when

applicable, providing such products meet space limitations and installation conditions and

are approved by the VTA.


July 17, 2013 05 12 35 - 11 Contract C700


2.03 SOURCE QUALITY CONTROL

A. The independent testing laboratory shall perform the following sampling, testing, and

inspections at the fabricator's shop in accordance with the provisions of Section 55-1.03,

"Inspection," of the Caltrans Standard Specifications and these Technical Specifications.

1. Structural steel shall be inspected at the fabrication site except as provided in "Check

Testing" of these Technical Specifications.

2. Check Testing: Structural steel shall conform to the designated ASTM Standard and

the check testing requirements of this Section.

a. Check samples shall be furnished for each heat of maximum thickness of:

1) Tension flanges and webs of fracture critical members

2) Tension flanges and webs of curved girders

3) Tension hanger plates

b. Steel plates, steel tubes, or bars containing check samples shall be furnished

from the mill with extra length in order to provide for removal of material for

check samples at the point of fabrication. Check samples may be cut from

either end of the designated plate, steel tube or bar.

c. At the option of the Contractor, check samples may be removed at the rolling

mill rather than at the point of fabrication. The sample shall be removed from

the mill plate that will be stripped by the fabricator to produce the designated

plate and may be taken from any location within that plate. The mill plate from

which samples are removed shall be marked with the same identifying numbers

as are used on the samples.

d. Unless otherwise directed, material for check samples shall be removed by the

Contractor in the presence of the independent testing laboratory. Check

samples for plates wider than 24 inches shall be 14 inches wide and 18 inches

long with the long dimension transverse to the direction of rolling. Check

samples for all other products shall be 18 inches long, taken in the direction of

rolling, and the width shall be the product width. Check samples shall be

removed and delivered to the independent testing laboratory before the material

is fabricated into components and preferably when it is still being prepared for

fabrication. The direction of rolling, heat numbers, and plate numbers shall be

marked on the samples with paint or other indelible marking material or may be

steel stamped in one corner of the plate.

e. Unless otherwise directed, check samples shall be delivered to the independent

testing laboratory. The check samples shall be tested by the independent testing

laboratory for compliance with the requirements specified in ASTM and these

Technical Specifications. Check sample test results shall be reported to the


Contract C700 05 12 35 - 12 July 17, 2013


Contractor and the VTA within 30 Days of delivery to the independent testing

laboratory. In the event several samples are submitted on the same day, an

additional day will be added for each two samples submitted. The test report

shall be made for the group of samples.

f. The results of the tensile and impact tests shall not vary more than 5 percent

below specified minimum or 5 percent above specified maximum requirements

except that if the initial check test results vary more than 5 percent but not more

than 10 percent from the specified requirements, a re-test may be performed on

another sample from the same heat and thickness. The results of the re-test

shall not vary more than 5 percent from the original specified requirements. If

the results of check tests exceed these permissible variations, all material

planned for use from the heat represented by said check samples shall be

subject to rejection.

3. The independent testing laboratory shall perform quality assurance inspections at the

fabricator's shop in accordance with the provisions of Section 01 45 00 - Quality

Control.

PART 3 - EXECUTION

3.01 ERECTION AND INSTALLATION

A. Reference Standards: Erection and installation of structural steel for bridges shall conform

to the applicable requirements of AISC 303 and AISC 360. Erection and installation of

structural steel for railroad and transit rail bridges shall conform to applicable requirements

of the AREMA Manual.

B. Lines and Levels: Structural steel shall be installed accurately at established lines and

levels. Steel shall be plumb and level before bolting is commenced. Installation shall be in

accordance with accepted Shop Drawings and actual conditions, true and horizontal or

perpendicular as the case may be, level and square, with angles and edges parallel with

related lines of the bridge or structure.

C. Temporary Bracing: Temporary bracing shall be provided as required and shall be kept in

position until final completion. Shop fabricated items subject to damage shall be braced and

carefully handled to prevent distortions or other damage. All items installed before

concrete is placed shall be properly braced to prevent distortion by pressure of concrete.

Bracing shall be watched and maintained by the Contractor during concreting operations.

D. Anchors, Anchor Bolts, Studs, and Fasteners:

1. Shop connections shall be welded and field connections bolted, unless indicated

otherwise. Use washers under bolt heads and nuts to give full grip when nuts are

turned tight. Use beveled washers where bolts bear on sloping surfaces.

2. Anchors, bolts and washers, inserts, studs, and fasteners as required for the erection,

installation, and completion of the work, and other miscellaneous steel or iron


July 17, 2013 05 12 35 - 13 Contract C700


fastenings to be installed in forms before concrete placement, or built into concrete,

shall be provided as indicated at the time scheduled for this work.

3. Bolts and anchors shall be preset by the use of templates or such other methods as

may be required to locate the anchors and anchor bolts accurately.

E. Bases and Bearing Plates: Bases and plates which require grouting shall be supported at the

correct level by means of adjustment nuts on anchor bolts. Bases and plates shall be set

accurately using a high-strength, non-shrink grout as specified in Section 03 61 11 - Non-

Shrink Grout.

F. Erection and Assembly:

1. After erection and field assembly, the various members forming parts of the

completed structure shall be aligned and adjusted accurately before being fastened.

Tolerances shall conform to the applicable requirements of AISC 303.

2. Fastening of splices of compression members shall be performed after the abutting

surfaces have been brought into contact. Bearing surfaces and surfaces which will be

in permanent contact shall be cleaned before the members are assembled. Splices will

be permitted only where indicated.

3. Unless removal is required, erection bolts used in welded construction may be

tightened securely and left in place. If erection bolts are removed, the holes shall be

filled with plug welds and ground smooth. Poor matching of holes shall be corrected

by drilling to the next larger size and providing the next larger size bolt. Welding for

redrilling will not be permitted.

4. For moment-resisting joints with flanges or combined flange-reinforcing plates 1-1/2

inches thick or thicker, web bolts shall not be tightened past snug-tight until after

completion of joint penetration welds.

G. Driftpins: Driftpins may be used only to bring together the several parts or components.

Fit-up bolts and driftpins shall not be used to bring out-of-tolerance fabricated members and

components into alignment. Driftpins shall not be used with such force as to distort or

damage the material.

H. Gas Cutting: The use of a gas-cutting torch in the field for correcting fabrication errors will

not be permitted.

I. Bolting:

1. Bolts shall be driven accurately into holes without damaging the thread. Bolt heads

shall be protected from damage during driving. Washers shall be placed under all

bolt heads and nuts. Bolt heads and nuts shall rest squarely against the washers.

2. Where bolts are to be used on beveled surfaces having slopes greater than 1 in 20

with a plane normal to the bolt axis, beveled washers shall be provided to give full


Contract C700 05 12 35 - 14 July 17, 2013


bearing to the head or nut. Bolt threads shall be upset or spoiled to prevent the nuts

from backing off.

3. Bolts transmitting shear shall be threaded to such a length that not more than one

thread will be within the grip of the metal.

4. Bolts shall extend through but not more than 1/4-inch beyond the nuts, unless

otherwise indicated. Bolt heads and nuts shall be drawn tight against the work with a

suitable wrench not less than 15 inches long. Bolt heads shall be tapped with a

hammer while the nut is being tightened. After having been finally tightened, nuts

shall be locked by upsetting or spoiling the threads as close as possible to the nut face

and to a depth of penetration necessary to deform one or more threads on the bolt.

J. High-Strength Bolting:

1. Prepare faying surfaces and assemble joints as slip critical connections in accordance

with RCSC S348.

2. Pretension bolts using any of the recommended methods in accordance with RCSC

S348.

3. Assembly of joints using load-indicator washers shall conform to the provisions of

RCSC S348. Load indicator washers shall conform to ASTM F959.

K. Sliding Joints: Properly clean sliding-joint assembly bearing surfaces and lubricate as

required.

L. Install metal fabrications and miscellaneous metalwork as indicated and in accordance with

the approved Shop Drawings, using workers skilled and experienced in the installation of

the type of work involved.

M. Install metal fabrications and miscellaneous metalwork with all installation accessories

furnished by the fabricator as required for complete and finished installations.

N. Installation of metalwork shall be in accordance with approved Shop Drawings, true and

horizontal, perpendicular, or at the required angle, as the case may be, level and square,

with angles and edges parallel with related lines of the structure.

O. Where bases and bearing plates require grouting, conform to requirements of Section 03 61

11 - Non-Shrink Grout, as applicable.

3.02 FIELD QUALITY CONTROL

A. Inspections: The independent testing laboratory shall perform the following inspections:

1. Structural steel placement and inspection and torque testing of high strength bolting

in accordance with RCSC S348.


July 17, 2013 05 12 35 - 15 Contract C700


2. Miscellaneous Metal Placement: Inspection of items embedded in concrete shall be

performed prior to any concrete placement.

3. The Contractor’s approved independent testing laboratory shall perform testing and

inspection of field welding in accordance with the provisions of Section 05 05 33,

Metal Welding for Bridges, and Section 01 45 00 – Quality Control.

3.03 FIELD PAINTING

A. Cleaning and field painting structural steel and miscellaneous metal for bridges shall be in

accordance with Section 09 91 10, Cleaning and Painting Structural Steel and

Miscellaneous Metal for Bridges.

END OF SECTION 05 12 35


Contract C700 05 12 35 - 16 July 17, 2013


THIS PAGE INTENTIONALLY LEFT BLANK

Master Specifications Revision 0 Approval Seal · 2013. 9. 25. · ASTM A307 Specification For...

Documents

Transcript of Master Specifications Revision 0 Approval Seal · 2013. 9. 25. · ASTM A307 Specification For...