751.3 Structural Steel Design Properties - Revision history

Hoskir: updated per RR3921

2024-08-20T19:06:03Z

updated per RR3921

← Older revision		Revision as of 14:06, 20 August 2024
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	'''Structural Steel (AASHTO M270/ASTM A709)'''		'''Structural Steel (AASHTO M270/ASTM A709)'''

	All structural steel will be AASHTO M270/ASTM A709 Grade 36 (F<sub>y</sub> = 36 ksi) or Grade 50 (F<sub>y</sub> ~~= 50 ksi) and structural steel HP piling will be AASHTO M270/ASTM A709 Grade 50S (F<sub>y</sub>~~ = 50 ksi) except where weathering steel (AASHTO M270/ASTM A709 Grade 50W steel) is indicated on the Design Layout or in special cases. '''See Project Manager for use of structural steel with F<sub>y</sub> greater than 50 ksi.'''		All structural steel will be AASHTO M270/ASTM A709 Grade 36 (F<sub>y</sub> = 36 ksi) or Grade 50 (F<sub>y</sub> = 50 ksi) except where weathering steel (AASHTO M270/ASTM A709 Grade 50W steel) is indicated on the Design Layout or in special cases. Welded or seamless steel shell (pipe) for CIP pile will be ASTM A252 Modified Grade 3 (F<sub>y</sub> = 50 ksi). For pipe common available nominal wall thicknesses, see [[751.36_Driven_Piles#751.36.2.2.2_Cast-In-Place_(CIP)_Pile\|EPG 751.36.2.2.2]]. '''See Project Manager for use of structural steel with F<sub>y</sub> greater than 50 ksi.'''

			Note: ASTM A709 Grade 50S shall not be specified for HP piles or other structural shapes without prior confirmation of the availability of the material.

	{\|border="1" style="text-align:center;" cellpadding="5" align="center"		{\|border="1" style="text-align:center;" cellpadding="5" align="center"
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	\|-		\|-
	\|50W\|\|50\|\|4\|\|All		\|50W\|\|50\|\|4\|\|All
	\|-
	~~\|50S\|\|50\|\| N/A\|\| HP pile~~
	\|-		\|-
	\| rowspan="2"\| HPS70W		\| rowspan="2"\| HPS70W
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	\|colspan="4" align="left"\|<sup>3</sup> Q&T, Quenched & Tempered		\|colspan="4" align="left"\|<sup>3</sup> Q&T, Quenched & Tempered
	\|}		\|}


	[[Category:751 LRFD Bridge Design Guidelines\|751.03]]		[[Category:751 LRFD Bridge Design Guidelines\|751.03]]

Smithk: Per BR, clarified pile design procedure.

2019-05-17T16:25:16Z

Per BR, clarified pile design procedure.

← Older revision		Revision as of 11:25, 17 May 2019
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	~~==751.3.1~~ Structural Steel (AASHTO M270/ASTM A709)==		'''Structural Steel (AASHTO M270/ASTM A709)'''

	All structural steel will be AASHTO M270/ASTM A709 Grade 36 (<~~math~~>~~\,F_y~~</~~math~~> = 36 ksi) or Grade 50 (<~~math~~>~~\,F_y~~</~~math~~> = 50 ksi) except where weathering steel (AASHTO M270/ASTM A709 Grade 50W steel) is indicated on the Design Layout or in special cases. '''See Project Manager for use of structural steel with <~~math~~>~~\,F_y~~</~~math~~> greater than 50 ksi.'''		All structural steel will be AASHTO M270/ASTM A709 Grade 36 (F<sub>y</sub> = 36 ksi) or Grade 50 (F<sub>y</sub> = 50 ksi) and structural steel HP piling will be AASHTO M270/ASTM A709 Grade 50S (F<sub>y</sub> = 50 ksi) except where weathering steel (AASHTO M270/ASTM A709 Grade 50W steel) is indicated on the Design Layout or in special cases. '''See Project Manager for use of structural steel with F<sub>y</sub> greater than 50 ksi.'''

	{\|border="1" style="text-align:center;" cellpadding="5" align="center"		{\|border="1" style="text-align:center;" cellpadding="5" align="center"
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	\|+'''Available Material'''		\|+'''Available Material'''
	\|-		\|-
	\|~~'''~~Grade~~'''\|~~\|Minimum Yield Strength, <~~math~~>~~\,F_y~~</~~math~~>(ksi)\|~~\|MaximumPlateThickness(~~inches)\|\|Shapes		!style="background:#BEBEBE"\|Grade!!style="background:#BEBEBE"\|Minimum Yield Strength,<br/>F<sub>y</sub>, ksi!!style="background:#BEBEBE"\|Maximum Plate Thickness,<br/>inches!!style="background:#BEBEBE"\|Shapes
	\|-		\|-
	\|36\|\|36\|\|4 ~~(*)~~\|\|All		\|36\|\|36\|\|4<sup>1</sup> \|\|All
	\|-		\|-
	\|50\|\|50\|\|4\|\|All		\|50\|\|50\|\|4\|\|All
	\|-		\|-
	\|50W\|\|50\|\|4\|\|All		\|50W\|\|50\|\|4\|\|All
			\|-
			\|50S\|\|50\|\| N/A\|\| HP pile
	\|-		\|-
	\| rowspan="2"\| HPS70W		\| rowspan="2"\| HPS70W
	\| rowspan="2"\| 70 \|\|2" TMCP ~~(**)~~\|\| rowspan="2"\| N/A		\| rowspan="2"\| 70 \|\|2" TMCP<sup>2</sup>\|\| rowspan="2"\| N/A
			\|-
			\|4" Q&T<sup>3</sup>
			\|-
			\|colspan="4" align="left" width="450"\|<sup>1</sup> Thickness of plate up to 8 inches may be used when fabricating bearings using ASTM A709 Grade 36 steel.
	\|-		\|-
	\|4" Q & T ~~(***)~~		\|colspan="4" align="left"\|<sup>2</sup> TMCP, Thermo Mechanical Controlled Process
			\|-
			\|colspan="4" align="left"\|<sup>3</sup> Q&T, Quenched & Tempered
	\|}		\|}


	~~:(*) Thickness of plate up to 8 inches may be used when fabricating bearings using ASTM A709 Grade 36 steel.~~

	~~:(**) TMCP, Thermo Mechanical Controlled Process~~

	~~:(***) Q&T, Quenched & Tempered~~

	[[Category:751 LRFD Bridge Design Guidelines\|751.03]]		[[Category:751 LRFD Bridge Design Guidelines\|751.03]]

Smithk: Attached article to new EPG 751

2010-04-15T14:18:23Z

Attached article to new EPG 751

← Older revision		Revision as of 09:18, 15 April 2010
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	:(***) Q&T, Quenched & Tempered		:(***) Q&T, Quenched & Tempered

	[[Category:751 LRFD ~~Manual General~~\|751.03]]		[[Category:751 LRFD Bridge Design Guidelines\|751.03]]

EPG-Admin at 16:12, 28 September 2007

2007-09-28T16:12:08Z

New page

==751.3.1 Structural Steel (AASHTO M270/ASTM A709)==

All structural steel will be AASHTO M270/ASTM A709 Grade 36 (<math>\,F_y</math> = 36 ksi) or Grade 50 (<math>\,F_y</math> = 50 ksi) except where weathering steel (AASHTO M270/ASTM A709 Grade 50W steel) is indicated on the Design Layout or in special cases. '''See Project Manager for use of structural steel with <math>\,F_y</math> greater than 50 ksi.'''

{|border="1" style="text-align:center;" cellpadding="5" align="center"
|-
|+'''Available Material'''
|-
|'''Grade'''||Minimum Yield Strength, <math>\,F_y</math>(ksi)||MaximumPlateThickness(inches)||Shapes
|-
|36||36||4 (*)||All
|-
|50||50||4||All
|-
|50W||50||4||All
|-
| rowspan="2"| HPS70W
| rowspan="2"| 70 ||2" TMCP (**)|| rowspan="2"| N/A
|-
|4" Q & T (***)
|}

:(*) Thickness of plate up to 8 inches may be used when fabricating bearings using ASTM A709 Grade 36 steel.

:(**) TMCP, Thermo Mechanical Controlled Process

:(***) Q&T, Quenched & Tempered

[[Category:751 LRFD Manual General|751.03]]