751.9 Bridge Seismic Design: Revision history

19 July 2024

• curprev 12:4812:48, 19 July 2024‎ Hoskir talk contribs‎ 191,577 bytes +13,252‎ updated per RR3868
• curprev 12:4512:45, 19 July 2024‎ Hoskir talk contribs‎ m 178,325 bytes 0‎ Hoskir moved page 751.9 LFD Seismic to 751.9 Bridge Seismic Design: renamed per RR3868

1 June 2022

• curprev 10:2110:21, 1 June 2022‎ Smithk talk contribs‎ m 178,325 bytes 0‎ updated links

17 May 2022

• curprev 11:3011:30, 17 May 2022‎ Smithk talk contribs‎ m 178,325 bytes +176‎ →‎751.9.3.1.4 Concrete Shear Blocks

11 May 2022

• curprev 13:2813:28, 11 May 2022‎ Smithk talk contribs‎ m 178,149 bytes +1,083‎ →‎751.9.3.1 Connection Design: Per BR, clarified bearing anchor bolt, dowel bar, and shear block design.

11 January 2022

• curprev 10:0810:08, 11 January 2022‎ Smithk talk contribs‎ m 177,066 bytes −197‎ Per BR, updated several links

6 December 2021

• curprev 13:5813:58, 6 December 2021‎ Smithk talk contribs‎ m 177,263 bytes −10‎ →‎751.9.3.1.1 Anchor Bolts: minor corrections

25 October 2021

• curprev 08:5108:51, 25 October 2021‎ Smithk talk contribs‎ m 177,273 bytes +1‎ Updated website link for increased security

10 June 2021

• curprev 09:0009:00, 10 June 2021‎ Smithk talk contribs‎ m 177,272 bytes 0‎ updated links

18 August 2020

• curprev 09:2709:27, 18 August 2020‎ Smithk talk contribs‎ m 177,272 bytes +134‎ →‎751.9.3.1 Connection Design: Per BR, corrected bolt specs to latest ASTM, clarified welding inspection procedures and other miscellaneous items.

27 November 2019

• curprev 14:2414:24, 27 November 2019‎ Smithk talk contribs‎ m 177,138 bytes +35‎ →‎751.9.3.1.7 T- Joint Connections
• curprev 10:2210:22, 27 November 2019‎ Smithk talk contribs‎ m 177,103 bytes +2‎ →‎751.9.3.1.7 T- Joint Connections
• curprev 10:1610:16, 27 November 2019‎ Smithk talk contribs‎ 177,101 bytes +1,004‎ →‎751.9.3.1.7 T- Joint Connections: Per BR, updated reinforcement details to be in accordance with new epoxy coated guidelines and with new development and splice length requirements.

17 May 2019

• curprev 09:4209:42, 17 May 2019‎ Smithk talk contribs‎ m 176,097 bytes +73‎ updated link

25 August 2017

• curprev 11:3011:30, 25 August 2017‎ EPGsysop talk contribs‎ m 176,024 bytes +8‎ →‎751.9.3.1.7 T- Joint Connections: Per BR, revised two figures about the splice stagger requirement for seismic column detail

14 August 2017

• curprev 09:0409:04, 14 August 2017‎ EPGsysop talk contribs‎ m 176,016 bytes +206‎ →‎751.9.3.1.7 T- Joint Connections: Per BR, added link to revised info about anchorage of pile for seismic jobs

16 June 2017

• curprev 09:3809:38, 16 June 2017‎ EPGsysop talk contribs‎ m 175,810 bytes +222‎ Per BR, clarified length requirements for dowel bars for prestressed girder bridges. Re-named "dowel rods" as "dowel bars".
• curprev 09:3209:32, 16 June 2017‎ EPGsysop talk contribs‎ m 175,588 bytes 0‎ No edit summary

20 April 2017

• curprev 10:1510:15, 20 April 2017‎ EPGsysop talk contribs‎ m 175,588 bytes +287‎ Per BR, added "Additional Info" box linking to the Bridge Seismic Design Process Flowchart

17 February 2017

• curprev 07:4007:40, 17 February 2017‎ Smithk talk contribs‎ m 175,301 bytes +1‎ →‎751.9.3.1.7 T- Joint Connections

15 February 2017

• curprev 12:4512:45, 15 February 2017‎ Smithk talk contribs‎ m 175,300 bytes 0‎ →‎751.9.3.1.7 T- Joint Connections
• curprev 12:4212:42, 15 February 2017‎ Smithk talk contribs‎ m 175,300 bytes +11‎ →‎751.9.3.1.7 T- Joint Connections: Per BR, expanded the use of epoxy coated reinforcement in bridge structures

29 June 2016

• curprev 09:1709:17, 29 June 2016‎ Smithk talk contribs‎ m 175,289 bytes −121‎ →‎751.9.2.6.4 Pile Lateral and Rotational Stiffness, (p-y curves): Per BR, accommodates removal of Table 751.9.2.4.1. If only SPT data are known, soil property are est'd from correlation charts
• curprev 09:1409:14, 29 June 2016‎ Smithk talk contribs‎ m 175,410 bytes +115‎ →‎751.9.2.4.1 Soil Properties: Per BR, updated text to accommodate the removal of Table 751.9.2.4.1. If only SPT data are known, soil property are now estimated from correlation charts.

28 June 2016

• curprev 06:2106:21, 28 June 2016‎ Smithk talk contribs‎ m 175,295 bytes −2‎ →‎751.9.2.4.1 Soil Properties
• curprev 06:2106:21, 28 June 2016‎ Smithk talk contribs‎ m 175,297 bytes −8,157‎ →‎Table 751.9.2.4.1 Soil Property Correlations: Per BR, removed outdated Table 751.9.2.4.1 Soil Property Correlations

14 June 2016

• curprev 06:5006:50, 14 June 2016‎ Smithk talk contribs‎ m 183,454 bytes +41‎ updated links

10 December 2014

• curprev 08:2908:29, 10 December 2014‎ Smithk talk contribs‎ m 183,413 bytes +30‎ →‎751.9.2.6.3 Pile Axial Stiffness: updated link

2 December 2014

• curprev 07:2707:27, 2 December 2014‎ Smithk talk contribs‎ m 183,383 bytes +69‎ →‎751.9.2.6.3 Pile Axial Stiffness: Per Bridge, replaced "design high water elevation" with "Normal Water Surface Elevation"

16 July 2014

• curprev 08:1808:18, 16 July 2014‎ Smithk talk contribs‎ m 183,314 bytes +13‎ →‎751.9.3.1.2 Dowel Rods: Per Bridge, minor corrections

15 February 2012

• curprev 07:4007:40, 15 February 2012‎ Smithk talk contribs‎ m 183,301 bytes +179‎ updated links

15 September 2011

• curprev 08:0708:07, 15 September 2011‎ Smithk talk contribs‎ m 183,122 bytes −1‎ →‎751.9.1.7 Directional Load Cases

27 October 2010

• curprev 12:5612:56, 27 October 2010‎ Smithk talk contribs‎ m 183,123 bytes 0‎ →‎751.9.3.1.4 Concrete Shear Blocks: updated link

30 September 2010

• curprev 13:4713:47, 30 September 2010‎ Smithk talk contribs‎ m 183,123 bytes +39‎ →‎751.9.1.1 Applicability of Guidelines: added link to additional info on cable-stayed bridges

27 May 2010

• curprev 06:3606:36, 27 May 2010‎ Smithk talk contribs‎ m 183,084 bytes +11‎ →‎751.9.1.3 Seismic Design Force Concepts: minor cosmetic improvements

13 May 2010

• curprev 10:5910:59, 13 May 2010‎ Smithk talk contribs‎ m 183,073 bytes +71‎ →‎751.9.2.2 Checklist for Seismic Computations: minor cosmetic adjustment

6 May 2010

• curprev 09:4309:43, 6 May 2010‎ Smithk talk contribs‎ m 183,002 bytes +17‎ →‎751.9.3.1.2 Dowel Rods
• curprev 08:1908:19, 6 May 2010‎ Smithk talk contribs‎ m 182,985 bytes +182,796‎ Info from the Bridge Manual pdf uploaded into the EPG

15 April 2010

• curprev 08:2108:21, 15 April 2010‎ Smithk talk contribs‎ m 189 bytes +10‎ attached article to new EPG 751

14 October 2009

• curprev 11:3111:31, 14 October 2009‎ EPG-Admin talk contribs‎ 179 bytes −4‎ No edit summary

3 September 2009

• curprev 13:0113:01, 3 September 2009‎ EPG-Admin talk contribs‎ 183 bytes +183‎ New article containing current LFD Seismic guidance from current Bridge Manual.