CA2289582A1 - Breakaway support post for highway guardrail end treatments - Google Patents

Breakaway support post for highway guardrail end treatments Download PDF

Info

Publication number
CA2289582A1
CA2289582A1 CA002289582A CA2289582A CA2289582A1 CA 2289582 A1 CA2289582 A1 CA 2289582A1 CA 002289582 A CA002289582 A CA 002289582A CA 2289582 A CA2289582 A CA 2289582A CA 2289582 A1 CA2289582 A1 CA 2289582A1
Authority
CA
Canada
Prior art keywords
support post
breakaway support
guardrail
highway guardrail
steel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002289582A
Other languages
French (fr)
Other versions
CA2289582C (en
Inventor
James R. Albritton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Trinity Industries Inc
Original Assignee
Exodyne Technologies, Inc.
James R. Albritton
Trinity Industries, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=21941108&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2289582(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Exodyne Technologies, Inc., James R. Albritton, Trinity Industries, Inc. filed Critical Exodyne Technologies, Inc.
Publication of CA2289582A1 publication Critical patent/CA2289582A1/en
Application granted granted Critical
Publication of CA2289582C publication Critical patent/CA2289582C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
    • E01F15/02—Continuous barriers extending along roads or between traffic lanes
    • E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
    • E01F15/0461—Supports, e.g. posts
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
    • E01F9/623—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection
    • E01F9/631—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection specially adapted for breaking, disengaging, collapsing or permanently deforming when deflected or displaced, e.g. by vehicle impact
    • E01F9/635—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection specially adapted for breaking, disengaging, collapsing or permanently deforming when deflected or displaced, e.g. by vehicle impact by shearing or tearing, e.g. having weakened zones
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
    • F16B2200/63—Frangible connections

Abstract

A breakaway support post is provided for a highway guardrail system to enhance the safety of a vehicle impacting with either the rail face of the associated guardrail or one end of the guardrail facing oncoming traffic. For some applications, the breakaway support post may be formed from a steel I-beam with one or more elongated slots formed intermediate the ends of the steel I-beam. The slots are preferably formed in the flanges of the I-beam which are in turn aligned generally parallel with the associated guardrail. For other applications, a breakaway support post may have an upper and a lower portion with a rotatable coupling assembly disposed therebetween. A shear pin or other releasing mechanism is preferably provided to maintain the upper and lower portions generally aligned with each other to the impact of a vehicle with one end of the associated guardrail.
CA002289582A 1997-05-09 1998-05-07 Breakaway support post for highway guardrail end treatments Expired - Lifetime CA2289582C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US4601597P 1997-05-09 1997-05-09
US60/046,015 1997-05-09
PCT/US1998/009029 WO1998050637A1 (en) 1997-05-09 1998-05-07 Breakaway support post for highway guardrail end treatments

Publications (2)

Publication Number Publication Date
CA2289582A1 true CA2289582A1 (en) 1998-11-12
CA2289582C CA2289582C (en) 2007-01-16

Family

ID=21941108

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002289582A Expired - Lifetime CA2289582C (en) 1997-05-09 1998-05-07 Breakaway support post for highway guardrail end treatments

Country Status (10)

Country Link
US (4) US8038126B1 (en)
EP (3) EP1365070B1 (en)
AT (1) ATE311499T1 (en)
AU (1) AU741450B2 (en)
CA (1) CA2289582C (en)
DE (1) DE69832599T2 (en)
DK (3) DK0980454T3 (en)
ES (3) ES2255159T3 (en)
NZ (1) NZ501309A (en)
WO (1) WO1998050637A1 (en)

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ATE311499T1 (en) 2005-12-15
AU741450B2 (en) 2001-11-29
US6886813B2 (en) 2005-05-03
EP2305890B1 (en) 2016-01-06
CA2289582C (en) 2007-01-16
US8038126B1 (en) 2011-10-18
EP2305890A2 (en) 2011-04-06
AU7367598A (en) 1998-11-27
DK2305890T3 (en) 2016-03-07
ES2560880T3 (en) 2016-02-23
EP1365070A1 (en) 2003-11-26
ES2255159T3 (en) 2006-06-16
ES2560846T3 (en) 2016-02-23
NZ501309A (en) 2001-12-21
US20030197162A1 (en) 2003-10-23
EP1365070B1 (en) 2016-01-06
US6488268B1 (en) 2002-12-03
DE69832599T2 (en) 2006-08-17
EP0980454A1 (en) 2000-02-23
EP2305890A3 (en) 2011-08-03
DE69832599D1 (en) 2006-01-05
DK0980454T3 (en) 2006-04-10
WO1998050637A1 (en) 1998-11-12
US6793204B2 (en) 2004-09-21
EP0980454B1 (en) 2005-11-30
US20020179894A1 (en) 2002-12-05
DK1365070T3 (en) 2016-03-07

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