Difference between revisions of "713 - Bridge Rehabilitation, Steel"

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See [[707 - Structural Steel|Section 707]] of this manual.
 
See [[707 - Structural Steel|Section 707]] of this manual.
  
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==MATERIALS==
 
==MATERIALS==
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Furnishing and fabricating structural steel additions and replacements for existing structures and for steel portions of temporary supports shall be according to [http://mdotcf.state.mi.us/public/specbook/files/2012/713%20Br%20Rehab%20-%20Steel.pdf Section 707].  Shop drawings shall be submitted for approval prior to fabrication.  See [http://mdotcf.state.mi.us/public/specbook/files/2012/713%20Br%20Rehab%20-%20Steel.pdf Section 713] of the Standard Specifications for Construction.
 
Furnishing and fabricating structural steel additions and replacements for existing structures and for steel portions of temporary supports shall be according to [http://mdotcf.state.mi.us/public/specbook/files/2012/713%20Br%20Rehab%20-%20Steel.pdf Section 707].  Shop drawings shall be submitted for approval prior to fabrication.  See [http://mdotcf.state.mi.us/public/specbook/files/2012/713%20Br%20Rehab%20-%20Steel.pdf Section 713] of the Standard Specifications for Construction.
  
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===Retrofit Structural Steel===
 
===Retrofit Structural Steel===
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See [http://mdotcf.state.mi.us/public/specbook/files/2012/713%20Br%20Rehab%20-%20Steel.pdf Section 713] of the Standard Specifications for Construction.
 
See [http://mdotcf.state.mi.us/public/specbook/files/2012/713%20Br%20Rehab%20-%20Steel.pdf Section 713] of the Standard Specifications for Construction.
  
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==CONSTRUCTION==
 
==CONSTRUCTION==
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Temporary supports for girder ends may either be as shown on the plans or an alternate design proposed by the Contractor and approved by the Engineer.
 
Temporary supports for girder ends may either be as shown on the plans or an alternate design proposed by the Contractor and approved by the Engineer.
  
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===Column-Type Supports and Suspension-Type Supports===
 
===Column-Type Supports and Suspension-Type Supports===
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See [http://mdotcf.state.mi.us/public/specbook/files/2012/713%20Br%20Rehab%20-%20Steel.pdf Section 713] of the Standard Specifications for Construction.
 
See [http://mdotcf.state.mi.us/public/specbook/files/2012/713%20Br%20Rehab%20-%20Steel.pdf Section 713] of the Standard Specifications for Construction.
  
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===Pin and Hanger Replacement===
 
===Pin and Hanger Replacement===
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Installation and Coating of New Hangar Assemblies - see [http://mdotcf.state.mi.us/public/specbook/files/2012/713%20Br%20Rehab%20-%20Steel.pdf Section 713] of the Standard Specifications for Construction for Installation and Coating of New Hanger Assemblies.
 
Installation and Coating of New Hangar Assemblies - see [http://mdotcf.state.mi.us/public/specbook/files/2012/713%20Br%20Rehab%20-%20Steel.pdf Section 713] of the Standard Specifications for Construction for Installation and Coating of New Hanger Assemblies.
  
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===Bearing Stiffeners at Temporary Supports===
 
===Bearing Stiffeners at Temporary Supports===
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See [http://mdotcf.state.mi.us/public/specbook/files/2012/713%20Br%20Rehab%20-%20Steel.pdf Section 713] of the Standard Specifications for Construction.
 
See [http://mdotcf.state.mi.us/public/specbook/files/2012/713%20Br%20Rehab%20-%20Steel.pdf Section 713] of the Standard Specifications for Construction.
  
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===Sealing the Perimeter of Beam Plates===
 
===Sealing the Perimeter of Beam Plates===
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The sealant shall be applied around the perimeter of bolted or riveted plates or angle on a steel beam as directed by the Engineer.  Apply the sealant over the epoxy intermediate coat when dry to the touch.  The top coat shall be applied over the sealant when the intermediate coat is fully cured.  The surfaces between the repair plate or angle and the beam and the surfaces in contact with the sealant shall be clean and dry at the time of application.  The sealant shall not be applied when the air or surface temperature is below 40°F (5°C).  Immediately after the sealant is applied, it shall be tooled to form a 5/16 inch fillet and to force it against the contact surface.  Sufficient sealant shall be applied to completely fill all pits and depressions regardless of width and depth in the steel beam at the seam line.
 
The sealant shall be applied around the perimeter of bolted or riveted plates or angle on a steel beam as directed by the Engineer.  Apply the sealant over the epoxy intermediate coat when dry to the touch.  The top coat shall be applied over the sealant when the intermediate coat is fully cured.  The surfaces between the repair plate or angle and the beam and the surfaces in contact with the sealant shall be clean and dry at the time of application.  The sealant shall not be applied when the air or surface temperature is below 40°F (5°C).  Immediately after the sealant is applied, it shall be tooled to form a 5/16 inch fillet and to force it against the contact surface.  Sufficient sealant shall be applied to completely fill all pits and depressions regardless of width and depth in the steel beam at the seam line.
  
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===Heat Straightening Damaged Structural Steel===
 
===Heat Straightening Damaged Structural Steel===
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See [http://mdotcf.state.mi.us/public/specbook/files/2012/713%20Br%20Rehab%20-%20Steel.pdf Section 713] of the Standard Specifications for Construction.
 
See [http://mdotcf.state.mi.us/public/specbook/files/2012/713%20Br%20Rehab%20-%20Steel.pdf Section 713] of the Standard Specifications for Construction.
  
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==MEASUREMENT AND PAYMENT==
 
==MEASUREMENT AND PAYMENT==
  
 
<span style="color: red"> -Reserved- </span>
 
<span style="color: red"> -Reserved- </span>
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Revision as of 14:37, 25 June 2013

713
Bridge Rehabilitation - Steel
2012 STANDARD SPECIFICATIONS FOR CONSTRUCTION - SECTION 713


Contents

GENERAL

Shop Plans

See Section 707 of this manual.

[top of page]


MATERIALS

Furnishing and Fabricating Structural Steel

Furnishing and fabricating structural steel additions and replacements for existing structures and for steel portions of temporary supports shall be according to Section 707. Shop drawings shall be submitted for approval prior to fabrication. See Section 713 of the Standard Specifications for Construction.

[top of page]


Retrofit Structural Steel

See Section 713 of the Standard Specifications for Construction.

[top of page]


CONSTRUCTION

Temporay Supports for Girder Ends

Temporary supports for girder ends may either be as shown on the plans or an alternate design proposed by the Contractor and approved by the Engineer.

[top of page]


Column-Type Supports and Suspension-Type Supports

See Section 713 of the Standard Specifications for Construction.

[top of page]


Pin and Hanger Replacement

Measurement and Removal of Existing Hangar Assemblies - see Section 713 of the Standard Specifications for Construction.

Installation and Coating of New Hangar Assemblies - see Section 713 of the Standard Specifications for Construction for Installation and Coating of New Hanger Assemblies.

[top of page]


Bearing Stiffeners at Temporary Supports

See Section 713 of the Standard Specifications for Construction.

[top of page]


Sealing the Perimeter of Beam Plates

The sealant shall be applied around the perimeter of bolted or riveted plates or angle on a steel beam as directed by the Engineer. Apply the sealant over the epoxy intermediate coat when dry to the touch. The top coat shall be applied over the sealant when the intermediate coat is fully cured. The surfaces between the repair plate or angle and the beam and the surfaces in contact with the sealant shall be clean and dry at the time of application. The sealant shall not be applied when the air or surface temperature is below 40°F (5°C). Immediately after the sealant is applied, it shall be tooled to form a 5/16 inch fillet and to force it against the contact surface. Sufficient sealant shall be applied to completely fill all pits and depressions regardless of width and depth in the steel beam at the seam line.

[top of page]


Heat Straightening Damaged Structural Steel

See Section 713 of the Standard Specifications for Construction.

[top of page]


MEASUREMENT AND PAYMENT

-Reserved-

[top of page]


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