Category:751 LRFD Bridge Design Guidelines - Revision history

Hoskir: updated per RR3868

2024-07-22T12:43:35Z

updated per RR3868

← Older revision		Revision as of 07:43, 22 July 2024
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	Bridge Design Guidelines assist MoDOT’s internal staff and outside consultants in performing design work for the department. It is intended to disseminate information regarding practices and policies to be applied to the design of Missouri structures on the state maintained system.		Bridge Design Guidelines assist MoDOT’s internal staff and outside consultants in performing design work for the department. It is intended to disseminate information regarding practices and policies to be applied to the design of Missouri structures on the state maintained system.

	It is the users responsibility to verify the design information presented is applicable to their particular project or situation.		It is the users responsibility to verify the design information presented is applicable to their particular project or situation.

	These guidelines are not intended to limit the designer or consultant from applying innovations which will lead to a more cost effective and technically sound solution as appropriate for the situation at hand. The evaluation of alternate solutions include such innovations is both expected and encouraged. However, any variations to EPG 751 or Standard Plan Sheets should be discussed in advance with the appropriate Structural Liaison Engineer or Structural Project Manager.		These guidelines are not intended to limit the designer or consultant from applying innovations which will lead to a more cost effective and technically sound solution as appropriate for the situation at hand. The evaluation of alternate solutions that include such innovations is both expected and encouraged. However, any variations to EPG 751 or Standard Plan Sheets should be discussed in advance with the appropriate Structural Liaison Engineer or Structural Project Manager.

			The following notation is used throughout these guidelines:
			: “LRFD XXX” refers to AASHTO LRFD Bridge Design Specifications.
			: “SGS XXX” refers to AASHTO Guide Specifications for LRFD Seismic Bridge Design.
			: “LFD XXX” refers to AASHTO Standard Specifications for Highway Bridges, 17th Ed. - 2002.
			: “Sec” refers to Missouri Standard Specifications for Highway Construction.

	It should be noted that the Federal Highway Administration has mandated for state owned structures:		It should be noted that the Federal Highway Administration has mandated for state owned structures:
	*All new bridges ~~on which states initiate preliminary engineering after October 1~~, ~~2007~~, ~~shall be designed by the LRFD Specifications.~~		:* All new and replacement bridges, culverts, retaining walls and other structures on which states initiate preliminary engineering shall be designed in accordance with LRFD and SGS.
	*All new [[751.8 LRFD Concrete Box Culverts\|culverts]] and other ~~standard~~ structures on which states initiate preliminary engineering ~~after October 1, 2010,~~ shall be designed by LRFD ~~(Load~~ and ~~Resistance Factor Design) Specifications, with the assumption that the specifications and software for these structures are "mature" at this time.~~		:* For modifications to existing structures, states have the option of using LRFD and SGS Specifications or the specifications that were used for the original design. Generally modifications to bridge projects on the state system include but are not limited to rehabs, redecks, superstructure replacements and widenings. If widening require additional substructure or modification to existing substructure than whole structure shall be analyzed in accordance with LRFD and SGS specification.
	*All new [[751.24 LFD Retaining Walls\|retaining walls]] shall be designed using 2002 AASHTO LFD (17<sup>th</sup> Edition) standard specifications.
	*For modifications to existing structures, states ~~would~~ have the option of using LRFD Specifications or the specifications ~~which~~ were used for the original design.

	~~The following notation is used throughout these guidelines:~~
	~~:“LRFD XXX” refers~~ to ~~AASHTO LRFD Bridge Design Specifications~~.
	~~:“Sec” refers~~ to ~~Missouri Standard Specifications for Highway Construction~~.

Smithk: deleted archaic info

2022-06-22T13:09:24Z

deleted archaic info

← Older revision		Revision as of 08:09, 22 June 2022
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	It is the users responsibility to verify the design information presented is applicable to their particular project or situation.		It is the users responsibility to verify the design information presented is applicable to their particular project or situation.
	~~{\|style="padding: 0.3em; margin-right:15px; border:1px solid #a9a9a9; text-align:center; font-size: 95%; background:#ffddcc" width="210px" align="left"~~
	\|-
	~~\|'''LRFD Bridge Design'''~~
	\|-
	\|[http://sharepoint/systemdelivery/CM/research/projects/special/MTI/Structures/MTI%20Structures%202a%20reliability%20factors/or11003revised.docx Calibration of the Live Load Factor in LRFD Design Guidelines, 2010]
	\|-
	~~\|'''See also:''' [https://www.modot.org/research-publications Research Publications]~~
	\|}

	These guidelines are not intended to limit the designer or consultant from applying innovations which will lead to a more cost effective and technically sound solution as appropriate for the situation at hand. The evaluation of alternate solutions include such innovations is both expected and encouraged. However, any variations to EPG 751 or Standard Plan Sheets should be discussed in advance with the appropriate Structural Liaison Engineer or Structural Project Manager.		These guidelines are not intended to limit the designer or consultant from applying innovations which will lead to a more cost effective and technically sound solution as appropriate for the situation at hand. The evaluation of alternate solutions include such innovations is both expected and encouraged. However, any variations to EPG 751 or Standard Plan Sheets should be discussed in advance with the appropriate Structural Liaison Engineer or Structural Project Manager.

Smithk: Per BR, deleted broken link

2022-01-11T13:25:30Z

Per BR, deleted broken link

← Older revision		Revision as of 08:25, 11 January 2022
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	It is the users responsibility to verify the design information presented is applicable to their particular project or situation.		It is the users responsibility to verify the design information presented is applicable to their particular project or situation.
	{\|style="padding: 0.3em; margin-right:15px; border:1px solid #a9a9a9; text-align:center; font-size: 95%; background:#ffddcc" width="210px" align="left"		{\|style="padding: 0.3em; margin-right:15px; border:1px solid #a9a9a9; text-align:center; font-size: 95%; background:#ffddcc" width="210px" align="left"
	\|-
	~~\|'''Slope Design, LRFD'''~~
	\|-
	~~\|[http://library.modot.mo.gov/RDT/reports/Ri03030/or06010.pdf Report 2006]~~
	\|-		\|-
	\|'''LRFD Bridge Design'''		\|'''LRFD Bridge Design'''

Smithk at 19:57, 18 August 2020

2020-08-18T19:57:52Z

← Older revision		Revision as of 14:57, 18 August 2020
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	\|[http://sharepoint/systemdelivery/CM/research/projects/special/MTI/Structures/MTI%20Structures%202a%20reliability%20factors/or11003revised.docx Calibration of the Live Load Factor in LRFD Design Guidelines, 2010]		\|[http://sharepoint/systemdelivery/CM/research/projects/special/MTI/Structures/MTI%20Structures%202a%20reliability%20factors/or11003revised.docx Calibration of the Live Load Factor in LRFD Design Guidelines, 2010]
	\|-		\|-
	\|'''See also:''' [~~http~~://www.modot.~~gov~~/~~services/OR/byDate.htm Innovation Library~~]		\|'''See also:''' [https://www.modot.org/research-publications Research Publications]
	\|}		\|}

Smithk at 17:40, 7 September 2018

2018-09-07T17:40:12Z

← Older revision		Revision as of 12:40, 7 September 2018
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	*All new bridges on which states initiate preliminary engineering after October 1, 2007, shall be designed by the LRFD Specifications.		*All new bridges on which states initiate preliminary engineering after October 1, 2007, shall be designed by the LRFD Specifications.
	*All new [[751.8 LRFD Concrete Box Culverts\|culverts]] and other standard structures on which states initiate preliminary engineering after October 1, 2010, shall be designed by LRFD (Load and Resistance Factor Design) Specifications, with the assumption that the specifications and software for these structures are "mature" at this time.		*All new [[751.8 LRFD Concrete Box Culverts\|culverts]] and other standard structures on which states initiate preliminary engineering after October 1, 2010, shall be designed by LRFD (Load and Resistance Factor Design) Specifications, with the assumption that the specifications and software for these structures are "mature" at this time.
	*All new [[~~media:~~751.24 LFD Retaining Walls~~.pdf~~\|retaining walls]] shall be designed using 2002 AASHTO LFD (17<sup>th</sup> Edition) standard specifications.		*All new [[751.24 LFD Retaining Walls\|retaining walls]] shall be designed using 2002 AASHTO LFD (17<sup>th</sup> Edition) standard specifications.
	*For modifications to existing structures, states would have the option of using LRFD Specifications or the specifications which were used for the original design.		*For modifications to existing structures, states would have the option of using LRFD Specifications or the specifications which were used for the original design.

EPGsysop: Per BR, guidance about specs for designing retaining walls to long-established current standards

2018-06-13T20:10:38Z

Per BR, guidance about specs for designing retaining walls to long-established current standards

← Older revision		Revision as of 15:10, 13 June 2018
Line 22:		Line 22:
	It should be noted that the Federal Highway Administration has mandated for state owned structures:		It should be noted that the Federal Highway Administration has mandated for state owned structures:
	*All new bridges on which states initiate preliminary engineering after October 1, 2007, shall be designed by the LRFD Specifications.		*All new bridges on which states initiate preliminary engineering after October 1, 2007, shall be designed by the LRFD Specifications.
	*All new [[751.8 LRFD Concrete Box Culverts\|culverts]]~~, [[media:751.24 LFD Retaining Walls.pdf\|retaining walls]],~~ and other standard structures on which states initiate preliminary engineering after October 1, 2010, shall be designed by LRFD (Load and Resistance Factor Design) Specifications, with the assumption that the specifications and software for these structures are "mature" at this time.		*All new [[751.8 LRFD Concrete Box Culverts\|culverts]] and other standard structures on which states initiate preliminary engineering after October 1, 2010, shall be designed by LRFD (Load and Resistance Factor Design) Specifications, with the assumption that the specifications and software for these structures are "mature" at this time.
			*All new [[media:751.24 LFD Retaining Walls.pdf\|retaining walls]] shall be designed using 2002 AASHTO LFD (17<sup>th</sup> Edition) standard specifications.
	*For modifications to existing structures, states would have the option of using LRFD Specifications or the specifications which were used for the original design.		*For modifications to existing structures, states would have the option of using LRFD Specifications or the specifications which were used for the original design.

EPGsysop: Per BR, updated link to report

2018-06-13T14:17:45Z

Per BR, updated link to report

← Older revision		Revision as of 09:17, 13 June 2018
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	\|'''LRFD Bridge Design'''		\|'''LRFD Bridge Design'''
	\|-		\|-
	\|[http://~~library.modot.mo.gov~~/~~RDT~~/~~reports~~/~~TRyy0913~~/~~OR11003b~~.~~pdf~~ Calibration of the Live Load Factor in LRFD Design Guidelines, 2010]		\|[http://sharepoint/systemdelivery/CM/research/projects/special/MTI/Structures/MTI%20Structures%202a%20reliability%20factors/or11003revised.docx Calibration of the Live Load Factor in LRFD Design Guidelines, 2010]
	\|-		\|-
	\|'''See also:''' [http://www.modot.gov/services/OR/byDate.htm Innovation Library]		\|'''See also:''' [http://www.modot.gov/services/OR/byDate.htm Innovation Library]

Smithk: updated link

2014-05-22T16:08:58Z

updated link

← Older revision		Revision as of 11:08, 22 May 2014
Line 22:		Line 22:
	It should be noted that the Federal Highway Administration has mandated for state owned structures:		It should be noted that the Federal Highway Administration has mandated for state owned structures:
	*All new bridges on which states initiate preliminary engineering after October 1, 2007, shall be designed by the LRFD Specifications.		*All new bridges on which states initiate preliminary engineering after October 1, 2007, shall be designed by the LRFD Specifications.
	*All new [[~~media:~~751.8 ~~LFD~~ Culverts~~.pdf~~\|culverts]], [[media:751.24 LFD Retaining Walls.pdf\|retaining walls]], and other standard structures on which states initiate preliminary engineering after October 1, 2010, shall be designed by LRFD (Load and Resistance Factor Design) Specifications, with the assumption that the specifications and software for these structures are "mature" at this time.		*All new [[751.8 LRFD Concrete Box Culverts\|culverts]], [[media:751.24 LFD Retaining Walls.pdf\|retaining walls]], and other standard structures on which states initiate preliminary engineering after October 1, 2010, shall be designed by LRFD (Load and Resistance Factor Design) Specifications, with the assumption that the specifications and software for these structures are "mature" at this time.
	*For modifications to existing structures, states would have the option of using LRFD Specifications or the specifications which were used for the original design.		*For modifications to existing structures, states would have the option of using LRFD Specifications or the specifications which were used for the original design.

Smithk at 19:28, 7 June 2013

2013-06-07T19:28:33Z

← Older revision		Revision as of 14:28, 7 June 2013
Line 21:		Line 21:

	It should be noted that the Federal Highway Administration has mandated for state owned structures:		It should be noted that the Federal Highway Administration has mandated for state owned structures:
	*All new bridges on which ~~States~~ initiate preliminary engineering after October 1, 2007, shall be designed by the LRFD Specifications.		*All new bridges on which states initiate preliminary engineering after October 1, 2007, shall be designed by the LRFD Specifications.
	*All new [[media:751.8 LFD Culverts.pdf\|culverts]], [[media:751.24 LFD Retaining Walls.pdf\|retaining walls]], and other standard structures on which ~~States~~ initiate preliminary engineering after October 1, 2010, shall be designed by LRFD (Load and Resistance Factor Design) Specifications, with the assumption that the specifications and software for these structures are "mature" at this time.		*All new [[media:751.8 LFD Culverts.pdf\|culverts]], [[media:751.24 LFD Retaining Walls.pdf\|retaining walls]], and other standard structures on which states initiate preliminary engineering after October 1, 2010, shall be designed by LRFD (Load and Resistance Factor Design) Specifications, with the assumption that the specifications and software for these structures are "mature" at this time.
	*For modifications to existing structures, ~~States~~ would have the option of using LRFD Specifications or the specifications which were used for the original design.		*For modifications to existing structures, states would have the option of using LRFD Specifications or the specifications which were used for the original design.

	The following notation is used throughout these guidelines:		The following notation is used throughout these guidelines:
	:“LRFD XXX” refers to AASHTO LRFD Bridge Design Specifications.		:“LRFD XXX” refers to AASHTO LRFD Bridge Design Specifications.
	:“Sec” refers to Missouri Standard Specifications for Highway Construction.		:“Sec” refers to Missouri Standard Specifications for Highway Construction.

Smithk: Per Organizational Results, link to reports added

2011-03-08T14:15:59Z

Per Organizational Results, link to reports added

← Older revision		Revision as of 09:15, 8 March 2011
Line 5:		Line 5:

	It is the users responsibility to verify the design information presented is applicable to their particular project or situation.		It is the users responsibility to verify the design information presented is applicable to their particular project or situation.

	These guidelines are not intended to limit the designer or consultant from applying innovations which will lead to a more cost effective and technically sound solution as appropriate for the situation at hand. The evaluation of alternate solutions include such innovations is both expected and encouraged. However, any variations to EPG 751 or Standard Plan Sheets should be discussed in advance with the appropriate Structural Liaison Engineer or Structural Project Manager.

	~~It should be noted that the Federal Highway Administration has mandated for state owned structures:~~
	*All new bridges on which States initiate preliminary engineering after October 1, 2007, shall be designed by the LRFD Specifications.
	*All new [[media:751.8 LFD Culverts.pdf\|culverts]], [[media:751.24 LFD Retaining Walls.pdf\|retaining walls]], and other standard structures on which States initiate preliminary engineering after October 1, 2010, shall be designed by LRFD (Load and Resistance Factor Design) Specifications, with the assumption that the specifications and software for these structures are "mature" at this time.
	*For modifications to existing structures, States would have the option of using LRFD Specifications or the specifications which were used for the original design.
	{\|style="padding: 0.3em; margin-right:15px; border:1px solid #a9a9a9; text-align:center; font-size: 95%; background:#ffddcc" width="210px" align="left"		{\|style="padding: 0.3em; margin-right:15px; border:1px solid #a9a9a9; text-align:center; font-size: 95%; background:#ffddcc" width="210px" align="left"
	\|-		\|-
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	\|-		\|-
	\|[http://library.modot.mo.gov/RDT/reports/Ri03030/or06010.pdf Report 2006]		\|[http://library.modot.mo.gov/RDT/reports/Ri03030/or06010.pdf Report 2006]
			\|-
			\|'''LRFD Bridge Design'''
			\|-
			\|[http://library.modot.mo.gov/RDT/reports/TRyy0913/OR11003b.pdf Calibration of the Live Load Factor in LRFD Design Guidelines, 2010]
	\|-		\|-
	\|'''See also:''' [http://www.modot.gov/services/OR/byDate.htm Innovation Library]		\|'''See also:''' [http://www.modot.gov/services/OR/byDate.htm Innovation Library]
	\|}		\|}

			These guidelines are not intended to limit the designer or consultant from applying innovations which will lead to a more cost effective and technically sound solution as appropriate for the situation at hand. The evaluation of alternate solutions include such innovations is both expected and encouraged. However, any variations to EPG 751 or Standard Plan Sheets should be discussed in advance with the appropriate Structural Liaison Engineer or Structural Project Manager.

			It should be noted that the Federal Highway Administration has mandated for state owned structures:
			*All new bridges on which States initiate preliminary engineering after October 1, 2007, shall be designed by the LRFD Specifications.
			*All new [[media:751.8 LFD Culverts.pdf\|culverts]], [[media:751.24 LFD Retaining Walls.pdf\|retaining walls]], and other standard structures on which States initiate preliminary engineering after October 1, 2010, shall be designed by LRFD (Load and Resistance Factor Design) Specifications, with the assumption that the specifications and software for these structures are "mature" at this time.
			*For modifications to existing structures, States would have the option of using LRFD Specifications or the specifications which were used for the original design.

	The following notation is used throughout these guidelines:		The following notation is used throughout these guidelines:
	:“LRFD XXX” refers to AASHTO LRFD Bridge Design Specifications.		:“LRFD XXX” refers to AASHTO LRFD Bridge Design Specifications.
	:“Sec” refers to Missouri Standard Specifications for Highway Construction.		:“Sec” refers to Missouri Standard Specifications for Highway Construction.