707 - Structural Steel - Revision history

JohnsonN23: /* Shop Inspection */

2018-01-16T19:53:57Z

Shop Inspection

JohnsonN23: /* Delivery of Structural Steel */

2018-01-16T19:53:37Z

Delivery of Structural Steel

JohnsonN23: /* Welding Piles, Falsework, Form Supports and Accessories */

2018-01-16T19:52:54Z

Welding Piles, Falsework, Form Supports and Accessories

JohnsonN23: /* C. Welding for Form Supports and Accessories */

2018-01-16T19:50:59Z

C. Welding for Form Supports and Accessories

JohnsonN23: /* Implementation Examples */

2018-01-16T19:50:43Z

Implementation Examples

JohnsonN23: /* GENERAL */

2018-01-16T19:26:01Z

GENERAL

JohnsonN23: /* Turn of Nut Tightening */

2018-01-16T19:25:00Z

Turn of Nut Tightening

JohnsonN23: /* MEASUREMENT AND PAYMENT */

2018-01-16T19:24:14Z

MEASUREMENT AND PAYMENT

JohnsonN23: /* Additional Specifications */

2018-01-16T19:16:14Z

Additional Specifications

JohnsonN23: /* Welding Piles, Falsework, Form Supports and Accessories */

2018-01-16T19:14:56Z

Welding Piles, Falsework, Form Supports and Accessories

← Older revision		Revision as of 19:53, 16 January 2018
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	[[File:Fig707.3.png\|900px\|thumbnail\|center\|Figure 707.2 - Steel Fabrication Inspection Flowchart]]		[[File:Fig707.3.png\|900px\|thumbnail\|center\|Figure 707.2 - Steel Fabrication Inspection Flowchart]]
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		+	{{top}}
		+	===[[#Delivery of Structural Steel\|Delivery of Structural Steel]]===
		+
		+	Project personnel are required to use the following procedure for acceptance of fabricated structural steel elements that are required to have “Fabrication Inspection” as the basis of acceptance in accordance with section [http://www.michigan.gov/documents/mdot/MDOT_MQAP_Manual_5_Section_D_307110_7.pdf 4.05.08.B or 4.06.06.B] of the Materials Quality Assurance Procedures Manual. These structural steel elements must not be shipped from the fabricator to the project or contractor’s yard without approval by the shop inspector at the time of loading. Fabricated structural steel elements include, but are not limited to, the following:
		+
		+	::*Structural steel for bridges (plate, rolled, hollow structural shape, bridge tube railing, steel deck grating, modular expansion joints, etc.);
		+
		+	::*Highway structures (sign structures, tower lighting units, and mast arm traffic signal)
		+
		+	Acceptance of fabricated structural steel elements consist of satisfactory shop inspection by the MDOT shop inspector in accordance with the applicable sections ([http://www.michigan.gov/documents/mdot/MDOT_MQAP_Manual_5_Section_D_307110_7.pdf 4.05 and 4.06]) of MDOT’s Materials Quality Assurance Procedures Manual (MQAP) and satisfactory visual inspection in the field by the engineer. The following two part process has been added to the MQAP to clarify the acceptance process:
		+
		+	:#Fabrication Inspection Acceptance: Structural steel elements must be inspected by the shop inspector after they are loaded for shipping. The elements must be stamped “Approved for Use” prior to shipping if they meet contract requirements (see Figure 707.1).Additionally, the shop inspector must stamp at least five copies of the Bill of Lading that is prepared by the fabricator. The approval stamp is for use by the Department and does not relieve the contractor of their responsibility to meet contract requirements.
		+	:#Visual Inspection Acceptance: The Engineer must collect one copy of the stamped Bill of Lading and use it to verify the delivered structural steel elements. Additionally, the Engineer must verify that the elements are stamped and visually inspect them for signs of damage that may have occurred as a result of shipping and handling. This visual inspection should be documented in the Inspector’s Daily Report (IDR).
		+
		+	The Engineer must inspect fabricated structural elements delivered to the project site with a stamped Bill of Lading and approval stamp as stated in Part 2 of the acceptance process stated above. The Engineer reserves the right to reject any shipped element that shows visual signs of damage or does not meet specification requirements in accordance with section 105 of the MDOT Standard Specifications for Construction. The Engineer must notify the Structural Fabrication Unit of any elements arriving on site that do not meet the standard specifications.
		+
		+	The Engineer must reject fabricated structural steel elements delivered to the project site without being stamped and without a stamped Bill of Lading. Note that only large structural steel elements will be individually stamped. Packaged structural steel elements (containers of fasteners, pallets of diaphragms/ bridge sign connections, etc.) will only be stamped on the outside of the package in multiple locations. Therefore, it is very important that the Engineer verify the material prior to the containers/pallets getting opened and separate, unstamped elements become scattered throughout the project site. The Engineer is instructed to contact the Structural Fabrication Unit immediately whenever an element or Bill of Lading arrives on the project site without the approval stamp.
		+
		+	The Engineer may make stockpile payments for fabricated structural steel elements in accordance with section 109 of the MDOT Standard Specifications for Construction. These elements can be stored at the fabrication facility or at the construction site. If the elements are stored at the construction site then they must be inspected by the Engineer as stockpiling occurs since the approval stamp ink could wash off. The Engineer must then mark the accepted structural steel elements in another more permanent way.
		+
		+	The Engineer should contact the Structural Fabrication Unit if project personnel have any questions regarding the acceptability of structural steel elements shipped to the project site. The Structural Fabrication Unit must review all proposed corrective action to structural steel elements not meeting specifications prior to approval.
		+
		+	The Structural Fabrication Unit will send a fabrication inspection memorandum via ProjectWise link to the project office at the end of each project. This memorandum is not the basis of acceptance, but rather a brief summary of the fabrication inspection for the project. The project office should use it as a reference when requesting fabrication information from the Structural Fabrication Unit. All fabrication records are stored in the project folder in ProjectWise. See Figure 707.3 for a sample inspection memorandum.
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		+	[[File:Fig707.4.png\|500px\|thumbnail\|center\|Figure 707.3 – Sample Steel Fabrication Memo]]
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@@ Line 4: / Line 4: @@
 <center><span STYLE="font: 40pt arial;">'''Structural Steel Construction'''</span></center>
-<center>[https://mdotjboss.state.mi.us/SpecProv/getDocumentById.htm?docGuid=320ff58b-cad9-4636-98ac-147ee1ff37ac&fileName=%22707%20Str%20Steel%20Construction.pdf%22 2012 STANDARD SPECIFICATIONS FOR CONSTRUCTION - SECTION 707]</center>
+<center>[http://mdotcf.state.mi.us/public/specbook/files/2012/707%20Str%20Steel%20Construction.pdf 2012 STANDARD SPECIFICATIONS FOR CONSTRUCTION - SECTION 707]</center>
@@ Line 55: / Line 55: @@
 ==[[#CONSTRUCTION|CONSTRUCTION]]==
 {{top}}
@@ Line 193: / Line 167: @@
 ===[[#Turn of Nut Tightening|Turn of Nut Tightening]]===
-Bolt verification testing is required to be performed on all projects requiring turn of nut tightening per [https://mdotjboss.state.mi.us/SpecProv/getDocumentById.htm?docGuid=320ff58b-cad9-4636-98ac-147ee1ff37ac&fileName=%22707%20Str%20Steel%20Construction.pdf%22 subsection 707.03.D.7.c of the MDOT Standard Specifications for Construction].  This testing is done to ensure that the contractor has sufficient knowledge and ability to complete turn of nut tightening correctly by using a device that measures bolt tension in conjunction with Table 707.3.  Bolt verification testing is conducted by the Structural Fabrication Unit and the inspector should schedule the testing prior to any field bolting taking place.
+Bolt verification testing is required to be performed on all projects requiring turn of nut tightening per [http://mdotcf.state.mi.us/public/specbook/files/2012/707%20Str%20Steel%20Construction.pdf subsection 707.03.D.7.c of the MDOT Standard Specifications for Construction].  This testing is done to ensure that the contractor has sufficient knowledge and ability to complete turn of nut tightening correctly by using a device that measures bolt tension in conjunction with Table 707.3.  Bolt verification testing is conducted by the Structural Fabrication Unit and the inspector should schedule the testing prior to any field bolting taking place.

@@ Line 4: / Line 4: @@
 <center><span STYLE="font: 40pt arial;">'''Structural Steel Construction'''</span></center>
-<center>[http://mdotcf.state.mi.us/public/specbook/files/2012/707%20Str%20Steel%20Construction.pdf 2012 STANDARD SPECIFICATIONS FOR CONSTRUCTION - SECTION 707]</center>
+<center>[https://mdotjboss.state.mi.us/SpecProv/getDocumentById.htm?docGuid=320ff58b-cad9-4636-98ac-147ee1ff37ac&fileName=%22707%20Str%20Steel%20Construction.pdf%22 2012 STANDARD SPECIFICATIONS FOR CONSTRUCTION - SECTION 707]</center>
@@ Line 193: / Line 193: @@
 ===[[#Turn of Nut Tightening|Turn of Nut Tightening]]===
-Bolt verification testing is required to be performed on all projects requiring turn of nut tightening per [http://mdotcf.state.mi.us/public/specbook/files/2012/707%20Str%20Steel%20Construction.pdf subsection 707.03.D.7.c of the MDOT Standard Specifications for Construction].  This testing is done to ensure that the contractor has sufficient knowledge and ability to complete turn of nut tightening correctly by using a device that measures bolt tension in conjunction with Table 707.3.  Bolt verification testing is conducted by the Structural Fabrication Unit and the inspector should schedule the testing prior to any field bolting taking place.
+Bolt verification testing is required to be performed on all projects requiring turn of nut tightening per [https://mdotjboss.state.mi.us/SpecProv/getDocumentById.htm?docGuid=320ff58b-cad9-4636-98ac-147ee1ff37ac&fileName=%22707%20Str%20Steel%20Construction.pdf%22 subsection 707.03.D.7.c of the MDOT Standard Specifications for Construction].  This testing is done to ensure that the contractor has sufficient knowledge and ability to complete turn of nut tightening correctly by using a device that measures bolt tension in conjunction with Table 707.3.  Bolt verification testing is conducted by the Structural Fabrication Unit and the inspector should schedule the testing prior to any field bolting taking place.
@@ Line 338: / Line 338: @@
 ===[[#Welding Piles, Falsework, Form Supports and Accessories|Welding Piles, Falsework, Form Supports and Accessories]]===
 Welding on piles, falsework, form supports and other accessories will be performed according to the current American Welding Society (AWS) Structural Welding Code D1.1. All welders performing this type of welding must be certified through the [http://www.michigan.gov/documents/mdot/MDOT_Certified_Weld_Testing_Agency_Program_082312_396129_7.pdf MDOT Welder Certification Program] which is administered by the Structural Fabrication Unit. The field welder must present Form 5620 - Welder Certification Test Report (See Figure 707.14) stating qualification according to AWS D1.1 Structural Welding Code within the previous two-year period.

@@ Line 4: / Line 4: @@
 <center><span STYLE="font: 40pt arial;">'''Structural Steel Construction'''</span></center>
-<center>[https://mdotjboss.state.mi.us/SpecProv/getDocumentById.htm?docGuid=320ff58b-cad9-4636-98ac-147ee1ff37ac&fileName=%22707%20Str%20Steel%20Construction.pdf%22 2012 STANDARD SPECIFICATIONS FOR CONSTRUCTION - SECTION 707]</center>
+<center>[http://mdotcf.state.mi.us/public/specbook/files/2012/707%20Str%20Steel%20Construction.pdf 2012 STANDARD SPECIFICATIONS FOR CONSTRUCTION - SECTION 707]</center>
@@ Line 193: / Line 193: @@
 ===[[#Turn of Nut Tightening|Turn of Nut Tightening]]===
-Bolt verification testing is required to be performed on all projects requiring turn of nut tightening per [https://mdotjboss.state.mi.us/SpecProv/getDocumentById.htm?docGuid=320ff58b-cad9-4636-98ac-147ee1ff37ac&fileName=%22707%20Str%20Steel%20Construction.pdf%22 subsection 707.03.D.7.c of the MDOT Standard Specifications for Construction].  This testing is done to ensure that the contractor has sufficient knowledge and ability to complete turn of nut tightening correctly by using a device that measures bolt tension in conjunction with Table 707.3.  Bolt verification testing is conducted by the Structural Fabrication Unit and the inspector should schedule the testing prior to any field bolting taking place.
+Bolt verification testing is required to be performed on all projects requiring turn of nut tightening per [http://mdotcf.state.mi.us/public/specbook/files/2012/707%20Str%20Steel%20Construction.pdf subsection 707.03.D.7.c of the MDOT Standard Specifications for Construction].  This testing is done to ensure that the contractor has sufficient knowledge and ability to complete turn of nut tightening correctly by using a device that measures bolt tension in conjunction with Table 707.3.  Bolt verification testing is conducted by the Structural Fabrication Unit and the inspector should schedule the testing prior to any field bolting taking place.
@@ Line 379: / Line 379: @@
 {{top}}
-=====[[#C. Welding for Form Supports and Accessories|C. Welding for Form Supports and Accessories]]=====
+====[[#C. Welding for Form Supports and Accessories|C. Welding for Form Supports and Accessories]]====
 Certified and Qualified welders may weld supports and attachments to steel girders if approved by the Engineer, in compression areas only. This may include support angles for permanent metal deck forms or attachments to facilitate bridge deck concrete forms. '''Welding in tension zones is not permitted''' and in these cases straps that run across the top flange must be used in lieu of welding to the top flange. Tension zones coincide with areas with no shear studs, with the exception of horizontally curved girders which have shear studs along the full length of the girders. In these cases the tension zones should be noted on the design plans. If there are any questions about the limits of tension zones or compression zones, consult with the bridge designer or Bridge Field Services.

@@ Line 370: / Line 370: @@
 {{top}}
-====[[#Implementation Examples|Implementation Examples]]====
+===[[#Implementation Examples|Implementation Examples]]===
 :*Primary Member Piles–Steel H-Piles or Cast-In-Place (CIP) shells used as primary members typically pile bent piers. Require full penetration buttwelds AND 100 percent UT for acceptance in accordance with the Special Provision for Pile Splicing. The pay item Splice, Steel Pile is applicable to this scenario; however, the costs for all UT testing shall also be included in the pay item.

@@ Line 368: / Line 368: @@
 :*Form 1161L Foundation Piling Record, LRFD has been revised to accommodate the pile welding changes and establish a method for QA. See Figure 707.15.
-[[File:Fig707.15.png|900px|thumbnail|center|Figure 707.15 – Foundation Piling Record]]
+[[File:Fig707.15.png|500px|thumbnail|center|Figure 707.15 – Foundation Piling Record]]
 {{top}}
 ====[[#Implementation Examples|Implementation Examples]]====