EP1124028B1 - Dispositif permettant de limiter le déplacement relatif de deux éléments d'une structure de génie civil et structure comprenant un tel dispositif - Google Patents

Dispositif permettant de limiter le déplacement relatif de deux éléments d'une structure de génie civil et structure comprenant un tel dispositif Download PDF

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Publication number
EP1124028B1
EP1124028B1 EP01400242A EP01400242A EP1124028B1 EP 1124028 B1 EP1124028 B1 EP 1124028B1 EP 01400242 A EP01400242 A EP 01400242A EP 01400242 A EP01400242 A EP 01400242A EP 1124028 B1 EP1124028 B1 EP 1124028B1
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EP
European Patent Office
Prior art keywords
bars
bar
linked
template
approximately
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.)
Expired - Lifetime
Application number
EP01400242A
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German (de)
English (en)
French (fr)
Other versions
EP1124028A1 (fr
Inventor
Alain Capra
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.)
Vinci Construction Grands Projets SAS
Original Assignee
Vinci Construction Grands Projets SAS
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Filing date
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Publication of EP1124028A1 publication Critical patent/EP1124028A1/fr
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Publication of EP1124028B1 publication Critical patent/EP1124028B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
    • E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
    • E04H9/0237—Structural braces with damping devices
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
    • E04H9/028—Earthquake withstanding shelters

Definitions

  • the invention relates to a device for limiting the amplitude of the relative displacement of two elements of a civil engineering structure or a building and absorb the deformation energy of this structure when it is subjected to an accidental stress, such as an earthquake, a wind exceptional, an explosion, a shock ...
  • the invention also relates to civil engineering structures or buildings with such a device.
  • the device according to the invention can be put in place in the structure during the construction thereof, or at a later stage for the purpose of strengthening the structure.
  • the object of the invention is to propose an improvement to the devices known, so as to provide a device which is very simple to make, which can be mass produced.
  • Another objective of the invention is to provide a device which is easy to implement, including in existing structures.
  • the invention therefore provides a device made in one piece, which solves the problem of positioning the different parts of the device together compared to others, and simplifies the manufacturing process.
  • the part capable of undergoing plastic deformation comprises at at least one bar, preferably of rectangular section, linked to the means of guiding the plastic deformation at one of its ends, and the means for guiding the plastic deformation comprise at least one bending template defining at least one curved surface on which the bend part capable of undergoing plastic deformation during said deformation.
  • the device can include several elements identical superimposed monoblocks.
  • the device can also include at least one fixed holding element at least one template and having a portion of its surface adjoining at least a bar, said holding element being intended to limit the spillage of the device during the deformation of said device.
  • the device comprises a plurality of bars arranged substantially parallel to each other others in the same plane, between two substantially parallel lines.
  • the ends of each of the bars that are aligned on a first line are linked to a first bending jig and the ends of each of the bars which are aligned on the second line are linked to a second template of bending.
  • the two templates are located in said plane, substantially perpendicular to said bars, and each define a curved surface on either side of each of the bars.
  • the invention also relates to a gantry structure defining meshes substantially rectangular elementaries, and comprising at least one such device.
  • This structure has four bars arranged in a cross, each bar being fixed, at one of its ends, at an angle of said mesh, two adjacent bars being fixed, at the other of their ends, to a first template of said device, the other two bars being fixed to the other of their ends, to the second template of said device.
  • the device comprises a bar linked at each of its ends to a bending template, each templates defining two curved surfaces arranged on either side of bar.
  • This device is intended to be placed in a structure comprising lintels, and to be fixed substantially horizontally on these lintels.
  • the invention also relates to a gantry structure comprising beams substantially horizontal and substantially vertical posts, and comprising at least one such device positioned at the intersection between beams and columns, the bars of the device being fixed substantially horizontally on the beams and the arms being fixed substantially vertically on the posts.
  • the end of the bar which is not linked to the guide means is rounded in shape or is provided with a articulation, the device being intended to be placed in an engineering structure civil comprising at least two parts between which are placed seismic isolators.
  • the guide means are fixed on a first part of said structure, and the end of the bar which is not linked to the guide means slides in a slide fixed on a second part of said structure.
  • the invention relates to a civil engineering structure comprising at least two parts and at least one device according to the second or third mode of realization, the said device being placed so that the central part of the device located towards the common end of the bars is linked to a device support fixed to a part of said structure, the end of each of the arms and / or bars which is not linked to the guide means being able to slide in a slide fastened to another part of said structure.
  • the device 1 comprises a bar 2 as well as a bending jig 3.
  • the bar 2 is linked to the template 3 at one of its ends 4, the assembly bar 2 - template 3 forming a one-piece element.
  • this one-piece element is planar. Thereafter, P 1 will denote the plane defined by this element, as shown in FIG. 1.
  • the bending template 3 defines at least one curved surface 5 on which bends bar 2 during its plastic deformation.
  • FIG. 1 represents the position of the bar 2 at rest, in dotted lines, as well as the position of this bar 2 during its deformation, in solid lines.
  • the curved surface 5 is tangent to the bar 2 at the contact line 6 between the template 3 and the end 4 of the bar 2 linked to the template 3.
  • the surface curve 5 diverges from bar 2 when moving away from the line of contact 6, and the convexity of the curved surface 5 is directed towards the bar 2.
  • the radius of curvature R i of said curved surface 5 is proportional to the width h i of the bar 2 measured at a point on said bar 2 intended to come into contact with said point M i of the curved surface 5 during plastic deformation.
  • the template 3 will have a variable radius of curvature according to the point M i of the surface 5 considered, this radius of curvature depending on the corresponding width of the bar 2.
  • the ratio R i / h i can be a function calibrated according to the use of the device.
  • the bar 2 is of rectangular cross section and has a plane of symmetry P 2 perpendicular to the plane P 1 and arranged along the length of the bar 2.
  • the template 3 defines two curved surfaces 5, 5 'arranged on either side of the bar 2 and symmetrical with respect to the plane P 2 .
  • bar 2 is designed so that its deformations remain in the elastic domain, its displacements being compatible with the operation of the equipment and the finishing work, including facades, piping ...
  • the device is preferably made of steel, ductile iron, an alloy metallic, or a metallic matrix composite.
  • the device is produced by cutting a metal sheet, at by means of an oxycut torch, by high pressure water jet, laser beam or any other system giving equivalent cutting precision. he can also be formed by molding.
  • the width of the cutting groove 7 can be excessive with regard to the general dimensions of the device to be produced, as illustrated in figure 2.
  • the width of the groove can reach 4 mm.
  • the first and second embodiments which will be described below in referring to Figures 3 to 9, are intended to be implemented in gantry civil engineering structures, that is to say structures comprising substantially horizontal beams 10 and substantially vertical posts 11 forming elementary meshes substantially rectangular in a plane substantially vertical.
  • Figures 3, 6 and 9 show such structures, in which the beams 10 notably support the floors 9.
  • Figure 9 shows, in dotted lines, the position of the beams 10 and posts 11 in normal situation as well as, in solid lines, the position of the beams 10 and posts 11 following an accidental request.
  • the structure deforms into parallelogram.
  • the invention proposes to control the shortening and lengthening of the diagonals of the elementary mesh.
  • the device 1 comprises a plurality of bars 2 arranged substantially parallel to each other in the same plane P 1 , parallel to the cutting plane of Figure 3. These bars 2 have substantially identical lengths and are located in the plane P 1 , between two lines D 1 and D 2 substantially parallel.
  • each of the bars 2 which are aligned on the right D 1 are linked to a first bending jig 3, and the ends of each of the bars 2 which are aligned on the right D 2 are linked to a second bending jig 3 .
  • the two templates 3, 3 ′ are located in the plane P 1 , substantially perpendicular to the bars 2.
  • the two templates are of shapes identical.
  • Each bar 12 is fixed to one from its ends, at an angle to the rectangular mesh formed by the posts 11 and beams 10.
  • the bars 12 located on a first diagonal of the mesh will play the role of tie rods and lie down, while the bars 12 located on the second diagonal will compress.
  • the device 1 then deforms into a parallelogram, the bars 2 folding on the curved surfaces 5 defined by the templates 3, 3 '.
  • the device 1 may include holding elements 13 intended to limit the spillage of said device 1 during its deformation.
  • the device 1 comprises four holding elements 13 in the form of rods, plates, or stiffeners welded to the jigs 3, 3 ′ of said device 1. These four elements 13 are placed parallel to the straight lines D 1 and D 2 , two retaining elements 13 being welded to each template 3, on either side of said template relative to the plane P 1 , as illustrated in FIGS. 4 and 5. The retaining elements 13 are therefore attached to the bars 2, this which limits the spillage of the device 1 during its deformation.
  • the bars 12 are articulated to the level of their connection with the templates 3, 3 'of the device 1.
  • the device 1 according to the invention comprises two monobloc elements 14 of shapes identical overlapping.
  • Each one-piece element 14 comprises four bars 2 arranged crosswise in the same plane P 1 parallel to the section plane of FIG. 6, said bars being substantially perpendicular to each other.
  • Each element 14 also comprises four bending jigs 3 arranged in a cross in the plane P 1 , in a substantially symmetrical manner, each of the jigs 3 being positioned between two bars 2.
  • Each template 3 defines two curved surfaces 5, 5 ', so that a surface curve is arranged on either side of each of the bars.
  • the washers 15 are held integral with the elements 14 by fastening elements of the type screw nut. This allows to maintain a constant spacing between the two monobloc elements 14, to avoid the spillage of the device 1 during its deformation, and to facilitate the connection of the device 1 to the elementary mesh of the gantry structure.
  • the device according to the first embodiment described previously may have two identical one-piece elements superimposed instead of a single monobloc element provided with retaining elements 13 limiting the spill.
  • the device 1 according to this second embodiment is linked to the structure in gantry via eight metal bars 16.
  • the bars 16 located on a first diagonal of the mesh will play the role of tie rods and lengthen, while the bars 16 located on the second diagonal will compress.
  • the bars 2 of the device 1 will deform plastically by bending on curved surfaces 5 corresponding templates 3, said templates working in the field elastic.
  • the device 1 comprises a bar 2 linked at each of its ends 4 to a bending template 3, each of the templates 3 defining two curved surfaces 5 arranged on either side of the bar 2.
  • This device 1 is intended to be fixed substantially horizontally on the lintels 17 of a civil engineering structure, above an opening 18.
  • the device 1 can be bolted to the faces of the walls of said structure, as illustrated in figure 10. The device is then used for repair or strengthening the lintels.
  • the device 1 can also be incorporated into the reinforced concrete composing the walls, as illustrated in FIG. 11. In the latter case, the anchoring of the device 1 is ensured by its welding on the reinforcements 25 of the reinforced concrete.
  • FIG. 12 represents the deformation of a civil engineering structure comprising walls and lintels, and comprising a device 1 according to the third mode for carrying out the invention.
  • FIG. 13 represents a fourth embodiment of the device according to the invention.
  • This device 1 is intended to be placed in a gantry structure, such as previously described. Said device 1 is placed at an intersection between the beams 10 and posts 11, the bars 2 being fixed substantially horizontally on the beams 10 and the arms 19 being fixed substantially vertically on the posts 11.
  • the elementary mesh deforms into a parallelogram, which leads to the plasticization of the bars 2, guided by the curved surfaces 5 of the templates 3, the arms 19 working in the elastic domain.
  • This device applies in particular to civil engineering structures comprising at least two parts 20, 21, a part 20 of said structure being placed on seismic isolators 22 with respect to part 21.
  • Seismic isolators 22 can be neoprene supports, sliding supports or any other system for isolating the structure from horizontal seismic vibrations from the ground.
  • This device applies in particular to bridges.
  • the device 1 comprises, in the same plane P 1 , a bar 2 linked by one of its ends 4 to a bending jig 3 defining a curved surface 5 on either side of said bar 2.
  • the jig 3 is bolted to one of the parts 21 of the structure.
  • the end 23 of the bar 2 which is not linked to the template 3 is of rounded shape, or provided with a joint, and is able to slide in a fixed slide 24 on the other part 20 of the structure.
  • a similar device can be positioned between the two parts 20, 21, in a plane P 2 orthogonal to the plane P 1 .
  • a holding element 13 having the shape of a rod, a flat or a stiffener can be positioned on the device 1 in order to limit the spillage of said device during deformation.
  • This holding element 13 is placed in a plane parallel to the plane P 1 and is fixed to the template 3, for example by welding. A portion of the surface of this element 13 is adjacent to the bar so as to prevent the bar from deforming outside the plane P 1 .
  • FIGS. 16 and 17 represent an engineering structure civilian comprising two parts 20, 21 capable of moving one by compared to the other under the effect of accidental stresses.
  • the plate 27 On the first part 21 is fixed a plate 27, substantially planar, by example by bolting.
  • the plate 27 comprises four slides 24 each comprising two projecting walls 28 substantially perpendicular to the plate 27 and parallel to each other.
  • the four slides 24 are located at the four corners of a rhombus.
  • the support device 30 may include fixing lugs 29 intended to receive means for fixing such as bolts.
  • the bearing device 30 is linked to the central part of a device 1 similar to that shown in Figures 7 or 13.
  • the device 1 rests freely on the plate 27 fixed to the first part 21, of such that the ends of each of the arms 19 and / or of the bars 2 which do not are not linked to the bending template 3 are each placed in a slide 24.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Environmental & Geological Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Revetment (AREA)
  • Vibration Dampers (AREA)
  • Foundations (AREA)
  • Bridges Or Land Bridges (AREA)
EP01400242A 2000-02-09 2001-01-31 Dispositif permettant de limiter le déplacement relatif de deux éléments d'une structure de génie civil et structure comprenant un tel dispositif Expired - Lifetime EP1124028B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0001597A FR2804709B1 (fr) 2000-02-09 2000-02-09 Dispositif permettant de limiter le deplacement relatif de deux elements d'une structure de genie civil et structure comprenant un tel dispositif
FR0001597 2000-02-09

Publications (2)

Publication Number Publication Date
EP1124028A1 EP1124028A1 (fr) 2001-08-16
EP1124028B1 true EP1124028B1 (fr) 2003-12-10

Family

ID=8846803

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01400242A Expired - Lifetime EP1124028B1 (fr) 2000-02-09 2001-01-31 Dispositif permettant de limiter le déplacement relatif de deux éléments d'une structure de génie civil et structure comprenant un tel dispositif

Country Status (7)

Country Link
US (1) US6651395B2 (pt)
EP (1) EP1124028B1 (pt)
JP (1) JP2001288925A (pt)
AT (1) ATE256234T1 (pt)
DE (1) DE60101395D1 (pt)
FR (1) FR2804709B1 (pt)
PT (1) PT1124028E (pt)

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US20040118057A1 (en) * 2002-12-09 2004-06-24 Sanders Royden C. Siesmic sensitive mass motion power converter for protecting structures from earthquakes
US20060059796A1 (en) * 2004-09-15 2006-03-23 Atle Gjelsvik Energy absorber and method of forming the same
US20060150538A1 (en) * 2004-12-27 2006-07-13 Thomas Gareth R Load-limiting device
US20060191236A1 (en) * 2005-02-28 2006-08-31 Surowiecki Matt F Internally braced framing
US20080022610A1 (en) * 2006-07-26 2008-01-31 Signature Metals, Inc. Composite energy absorbing structure
US7934347B2 (en) * 2006-07-28 2011-05-03 Paul Brienen Coupling beam and method of use in building construction
US8037647B2 (en) * 2006-10-30 2011-10-18 University Of Utah Research Foundation Perforated plate seismic damper
US8099914B2 (en) * 2006-10-30 2012-01-24 The University Of Utah Research Foundation Perforated plate seismic damper
US8397444B2 (en) * 2006-10-30 2013-03-19 University Of Utah Research Foundation Perforated plate seismic damper
JP4735585B2 (ja) * 2007-03-29 2011-07-27 鹿島建設株式会社 コンクリート系棒状ダンパー構造
US8136309B2 (en) * 2009-06-15 2012-03-20 Rahimian Ahmad Energy dissipation damper system in structure subject to dynamic loading
CN106049700B (zh) * 2016-07-29 2018-04-20 龙军 一种室内生命保护室
CN117822779A (zh) * 2018-04-28 2024-04-05 郑州大学 一种依靠x形布置阻尼装置耗能的可恢复剪力墙及其建造方法
WO2021161293A1 (en) * 2020-02-16 2021-08-19 Teymour Honarbakhsh Friction damper for a building structure

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Also Published As

Publication number Publication date
ATE256234T1 (de) 2003-12-15
US6651395B2 (en) 2003-11-25
FR2804709A1 (fr) 2001-08-10
US20020011037A1 (en) 2002-01-31
PT1124028E (pt) 2004-04-30
EP1124028A1 (fr) 2001-08-16
DE60101395D1 (de) 2004-01-22
JP2001288925A (ja) 2001-10-19
FR2804709B1 (fr) 2002-04-19

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