WO2020167878A1 - Configuration de support structurel et son procédé de fabrication - Google Patents

Configuration de support structurel et son procédé de fabrication Download PDF

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Publication number
WO2020167878A1
WO2020167878A1 PCT/US2020/017821 US2020017821W WO2020167878A1 WO 2020167878 A1 WO2020167878 A1 WO 2020167878A1 US 2020017821 W US2020017821 W US 2020017821W WO 2020167878 A1 WO2020167878 A1 WO 2020167878A1
Authority
WO
WIPO (PCT)
Prior art keywords
bridge
bearing
bearing assembly
plate
designed
Prior art date
Application number
PCT/US2020/017821
Other languages
English (en)
Inventor
Ryan SCHADE
Chad SUON
Original Assignee
Gibraltar Industries
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
Application filed by Gibraltar Industries filed Critical Gibraltar Industries
Priority to US17/430,185 priority Critical patent/US20220154413A1/en
Publication of WO2020167878A1 publication Critical patent/WO2020167878A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/04—Bearings; Hinges
    • E01D19/042—Mechanical bearings
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/04—Bearings; Hinges
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/04—Bearings; Hinges
    • E01D19/041—Elastomeric bearings
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
    • E01D2/02—Bridges characterised by the cross-section of their bearing spanning structure of the I-girder type

Definitions

  • the present invention relates generally to structural bearing assemblies and to methods to make same.
  • the present invention relates to structural bearing assemblies designed for bridges.
  • the present invention relates to structural bearing assemblies designed for bridges that are more easily replaced when necessary.
  • a bridge bearing is a component of a bridge which typically provides a resting surface between a suitable bridge substructure and a bridge's superstructure.
  • the purpose of a bearing is to allow controlled movement of one or more aspects of a structure thereby reducing the stresses involved. Movement types can be, for example, thermal expansion or contraction, rotational or movement from other sources such as seismic activity.
  • bridge bearings There are several different types of bridge bearings which are used depending on a number of different factors including the bridge span. Given the importance thereof, bridge bearings must not only be inspected but must also be periodically replaced, as needed and/or required, in order to maintain the structural integrity of a bridge. Replacement and/or repair is necessitated by the fact that the numerous bridge bearings present in most, in not all, bridges have a lifespan that is typically much shorter than other major and minor bridge components.
  • the present invention relates generally to structural bearing assemblies and to methods to make same.
  • the present invention relates to structural bearing assemblies designed for bridges.
  • the present invention relates to structural bearing assemblies designed for bridges that are more easily replaced when necessary.
  • the present invention comprises a bridge bearing assembly comprising: an upper plate designed to be securely connected to the underside of a concrete girder, support beam and/or steel girder, wherein the concrete girder, support beam and/or steel girder is supporting a bridge's superstructure structure; a lower keeper plate designed to be securely connected to the upper side of a bridge's substructure or other anchoring structure; a bearing designed to be contained in place by at least one keeper plate(s) with the bearing having no mechanical bond to the upper plate; and at least one bearing positioned between the underside of the upper plate and the upper side of the lower plate, the bearing being formed from a material designed to handle movements and/or absorb vibrations, wherein the bridge bearing assembly is at least secured to the upper side of the bridge's substructure or other anchoring structure; and at least two anchoring rods designed to secure the lower plate to the upper side of the bridge's substructure or other anchoring structure.
  • the present invention comprises a bridge bearing assembly comprising: an upper plate designed to be securely connected to the underside of a concrete girder, support beam and/or steel girder, wherein the concrete girder, support beam and/or steel girder is supporting a bridge's superstructure structure; a lower keeper plate designed to be securely connected to the underside of the upper plate; a bearing designed to be contained in place by at least one keeper plate(s) with the bearing having no mechanical bond to the upper plate; and at least two anchoring rods designed to secure the bridge bearing assembly to an upper side of a bridge's substructure or other anchoring structure for fixed or guided bearings.
  • the present invention comprises a bridge bearing assembly comprising: an upper plate designed to be securely connected to the underside of a concrete girder, support beam and/or steel girder, wherein the concrete girder, support beam and/or steel girder is supporting a bridge's superstructure structure; a lower keeper plate designed to be securely connected to the underside of the upper plate; and a bearing designed to be contained in place by at least one keeper plate(s) with the bearing having no mechanical bond to the upper plate.
  • Figure 1 is a side view of a bridge bearing according to one embodiment of the present invention.
  • Figure 2 illustrates plan views of the plates of the bridge bearing of Figure 1;
  • Figures 3A and 3B illustrate two views of a bridge bearing according to another embodiment of the present invention; a fixed (no movement) style bearing is shown with a guided (unidirectional movement) bearing being similar, but utilizing slotted holes for anchorage.
  • Figure 4 is an illustration of the bridge bearing; in a free (multi-directional) bearing configuration
  • Figure 5 is a plan view of a plate for use with the bridge bearing of Figure 4.
  • the words “example” and “exemplary” mean an instance, or illustration.
  • the words “example” or “exemplary” do not indicate a key or preferred aspect or embodiment.
  • the word “or” is intended to be inclusive rather an exclusive, unless context suggests otherwise.
  • the phrase “A employs B or C,” includes any inclusive permutation (e.g., A employs B; A employs C; or A employs both B and C).
  • the articles “a” and “an” are generally intended to mean “one or more” unless context suggest otherwise.
  • the present invention relates generally to structural bearing assemblies and to methods to make same.
  • the present invention relates to structural bearing assemblies designed for bridges.
  • the present invention relates to structural bearing assemblies designed for bridges that are more easily replaced when necessary.
  • the key features of the present invention and the one or more methods associated therewith include: (i) threaded or pressed fit pintles that provide horizontal fixity in all directions or in one single direction, or even only two directions, through use of holes or slots in the upper or lower plate assemblies; (ii) a plurality of recesses formed in upper and/or lower plates - for example, one such non-limiting example is three or four-sided recesses (depth can vary) in one or more of the upper and/or lower plates of a bearing assembly with accompanying bolted keeper plates that lock the bearing component in place without rigidly bonding it to the plates; and (iii) bearings that can accommodate slopes through beveling an upper plate, beveling bearing material, or through optional beveled recess, depending on a customer's preference.
  • the present invention permits bearing plates that are designed for easy placement and replacement of bearing components located therebetween.
  • the design can utilize pintles threaded or press fit into the upper or lower plates that extend into holes or slots in the adjacent plate to provide fixity against any horizontal movements (holes), or fixity in one direction and permits movement in the other (slots).
  • the top and/or bottom plates may or may not have recesses that contain the bearing (bearing can be laminated elastomeric bearings, fabric bearings, steel or bronze bearings, urethane bearings, or any other material that can be designed to handle compression and accommodate rotation and/or movement).
  • the recess(s) contain the bearing in the plates without the need for bolting, bonding, or other means of mechanically fastening the bearing to the upper/sole plate or lower/masonry plate, where the recess can be two, three or four sided, depending on what is necessary for replacement based on any suitable jacking limitations.
  • a permanent keeper plate(s) is bolted into the open end of the recess to contain the bearing. Replacement of such a bearing is competently handled by removing the keeper plate(s) and jacking the structure a minimum amount to release compression on the bearing assembly to where the bearing can be removed and replaced. The keeper plate(s) are then re-attached to the upper and/or lower plates to complete replacement.
  • a bearing assembly 100 according to one embodiment of the present invention comprises an optional upper/sole plate 102 (shown as embedded in a concrete girder 110, which alternatively could also be welded to a support beam and/or steel girder, plate 102 can be attached by any other suitable means such as bolts, rivets, etc. based on the type of girder in use,) and a lower/masonry plate 104 having positioned therebetween a bearing 106.
  • an optional upper/sole plate 102 shown as embedded in a concrete girder 110, which alternatively could also be welded to a support beam and/or steel girder, plate 102 can be attached by any other suitable means such as bolts, rivets, etc. based on the type of girder in use,
  • a lower/masonry plate 104 having positioned therebetween a bearing 106.
  • bearing assembly 100 has two or more anchor rods 108, or some other type of anchorage system (bolt, coupler, shear studs, etc.), to permit the connection of lower/masonry plate 104 to a desired anchor point, steel girder, abutment, etc.
  • anchor rods 108 or some other type of anchorage system (bolt, coupler, shear studs, etc.)
  • two or more studs or some other alternative shear device 112 can be utilized to make sure sole plate 102 is adequately connected to the concrete girder shown 110, or connected through some other means to a support beam and/or steel girder.
  • Upper/sole plate 102 if present, can further optionally be beveled and/or sloped as needed to permit matching of the slope of the structure to the nature of the slope required by the orientation of the bearing assembly being replaced.
  • bearing assembly 100 can optionally include two or more shear pins 114 to resist horizontal forces.
  • lower/masonry plate 104 can, in one embodiment, further comprise a keeper notch 116 and two or more bolts 118 designed to further permit proper positioning and seating of bearing 106.
  • the nature of the bearing 106 is not limited to any one specific type of bearing material, but rather can be formed from any suitable bearing material that is typically utilized in any type of structural bearing such as an elastomeric material.
  • Figure 2 illustrates plan view of the upper/sole plate 102 and the lower, or masonry, plate 104.
  • upper/sole plate 102, lower/masonry plate 104, anchor rods 108, studs 112 (or their equivalents) and shear pins 114 can all independently be formed from any suitable metal or metal alloy (e.g., steel, stainless steel, etc.) utilizing a corrosion- resistant metal or corrosion-resistant coating.
  • suitable metal or metal alloy e.g., steel, stainless steel, etc.
  • a bearing assembly 200 according to another embodiment of the present invention comprises of three different styles of bearing assemblies that are chosen dependent on the movement requirements for the structure in which the bearing assembly is utilized.
  • Figure 3A illustrates an embodiment that illustrates a fixed (no movement) bearing assembly of the present invention that utilizes a plurality of holes through shear blocks 214.
  • a guided (unidirectional) style of the bearing assembly of the present invention could utilize slotted holes (not shown, but noted in Figure 3B) through shear blocks 214.
  • the fixed and guided style of the bearing assembly of the present invention comprises an upper/sole plate 202 (shown attached to the bottom of concrete girder 204 by welding thereto embedded plate 220 or could be attached to a concrete girder, support beam and/or steel girder by some other suitable attachment means), a keeper/lower plate 206 positioned under the upper/sole plate 202 secured to the upper/sole plate 202 via a suitable number of bolts (or other comparable securing hardware) 218, a shear block 214 positioned under the upper/sole plate 202, and optional embedded plate 220 above the upper/sole plate (depending on the type of girder being used).
  • an upper/sole plate 202 shown attached to the bottom of concrete girder 204 by welding thereto embedded plate 220 or could be attached to a concrete girder, support beam and/or steel girder by some other suitable attachment means
  • a keeper/lower plate 206 positioned under the upper/sole plate 202 secured to the upper/sole plate 202 via a suitable number
  • Figure 4 illustrates a free (multi-directional) style bearing assembly of the present invention, comprising an upper/sole plate 222 (shown attached to the bottom of concrete girder 204 shear studs or could be attached to a concrete girder, support beam and/or steel girder by some other suitable attachment means), and a keeper/lower plate 206 positioned under the upper/sole plate 222.
  • Upper/sole plate 222 is detailed separately in Figure 5.
  • Bearing assembly 200 or 224 can similarly utilize recesses and keeper plate configurations as mentioned above.
  • Bearing 208 is made from any suitable material that can withstand high load weights and/or high vibration loads associated with large infrastructure objects (i.e., bridges).
  • bearing 208 or upper/sole plate can be formed to having any desired slope in order to accommodate the structure grade.
  • bearing assembly 200 has two or more anchor rods 212, or some other type of coupling/securing hardware, to permit the connection of the bearing assembly 200 to a substructure or other support structure 210 via two or more shear blocks 214.
  • Shear blocks 214 can be formed from any suitable material such as a metal material, or a combination of multiple materials, etc.
  • bearing assembly 224 has an upper/sole plate 222 secured to the bottom of concrete girder 204, (or support beam and/or steel girder) via a suitable number of shear studs 216 (or other comparable securing hardware or a weld), and keeper/lower plate 206 is secured to the upper/sole plate 222 via a suitable number of bolts (or other comparable securing hardware), 218.
  • Keeper/lower plate 206 is designed to hold the bearing 208 in position where contacting the plate surface without the need to bond or mechanically fasten the bearing 208 to the upper/sole plate 222.
  • a concrete beam 204 (or support beam and/or steel girder) can be mounted to any desired substructure or other anchoring structure 210 in a manner to permit a specified/desired amount of movement between bearing points of the structure 210.
  • Figure 5 illustrates an upper/sole plate 222 and keeper/lower plate 206, where keeper/lower plate 206 is a formed from multiple detachable strips of material.
  • upper/sole plate 202 or 222, keeper/lower plate 206, anchor rods 212, shear blocks 214 (if required) and studs 216 can all independently be formed from any suitable metal or metal alloy (e.g., steel, stainless steel, etc.) utilizing a corrosion-resistant metal or corrosion-resistant coating.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

La présente invention concerne de manière générale des ensembles de support structurel et des procédés de fabrication de ceux-ci. Selon un mode de réalisation, la présente invention concerne des ensembles de support structurel conçus pour des ponts. Selon un autre mode de réalisation, la présente invention concerne des ensembles de support structurel conçus pour des ponts qui sont plus faciles à remplacer lorsque cela est nécessaire.
PCT/US2020/017821 2019-02-12 2020-02-12 Configuration de support structurel et son procédé de fabrication WO2020167878A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US17/430,185 US20220154413A1 (en) 2019-02-12 2020-02-12 Structural bearing configuration and method of making same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962804484P 2019-02-12 2019-02-12
US62/804,484 2019-02-12

Publications (1)

Publication Number Publication Date
WO2020167878A1 true WO2020167878A1 (fr) 2020-08-20

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ID=72045139

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2020/017821 WO2020167878A1 (fr) 2019-02-12 2020-02-12 Configuration de support structurel et son procédé de fabrication

Country Status (2)

Country Link
US (1) US20220154413A1 (fr)
WO (1) WO2020167878A1 (fr)

Citations (5)

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CN2705494Y (zh) * 2004-04-30 2005-06-22 中国路桥(集团)新津筑路机械厂 抗震阻尼球型支座
US20140026498A1 (en) * 2011-02-21 2014-01-30 Politecnico Di Milano Antiseismic support
CN105178174A (zh) * 2015-08-11 2015-12-23 洛阳双瑞特种装备有限公司 一种具有位移锁定装置的减隔震支座
CN205529866U (zh) * 2016-01-29 2016-08-31 中铁二院工程集团有限责任公司 开启桥支座构造
US20180195267A1 (en) * 2015-07-20 2018-07-12 Tensacciai S.R.L. Sliding bearing for supporting civil or structural engineering works

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CN106192736A (zh) * 2016-07-18 2016-12-07 深圳市市政设计研究院有限公司 高阻尼橡胶隔震支座、智能支座以及支座监测系统
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Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2705494Y (zh) * 2004-04-30 2005-06-22 中国路桥(集团)新津筑路机械厂 抗震阻尼球型支座
US20140026498A1 (en) * 2011-02-21 2014-01-30 Politecnico Di Milano Antiseismic support
US20180195267A1 (en) * 2015-07-20 2018-07-12 Tensacciai S.R.L. Sliding bearing for supporting civil or structural engineering works
CN105178174A (zh) * 2015-08-11 2015-12-23 洛阳双瑞特种装备有限公司 一种具有位移锁定装置的减隔震支座
CN205529866U (zh) * 2016-01-29 2016-08-31 中铁二院工程集团有限责任公司 开启桥支座构造

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