WO2013142940A1 - Improvement in a sealing element for expansion joints - Google Patents

Improvement in a sealing element for expansion joints Download PDF

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Publication number
WO2013142940A1
WO2013142940A1 PCT/BR2013/000103 BR2013000103W WO2013142940A1 WO 2013142940 A1 WO2013142940 A1 WO 2013142940A1 BR 2013000103 W BR2013000103 W BR 2013000103W WO 2013142940 A1 WO2013142940 A1 WO 2013142940A1
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WO
WIPO (PCT)
Prior art keywords
lateral
improvement
sealing profile
lateral flange
sealing element
Prior art date
Application number
PCT/BR2013/000103
Other languages
French (fr)
Inventor
Jorge Gabrielli Zacharias Calixto
Original Assignee
Jorge Gabrielli Zacharias Calixto
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 Jorge Gabrielli Zacharias Calixto filed Critical Jorge Gabrielli Zacharias Calixto
Publication of WO2013142940A1 publication Critical patent/WO2013142940A1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66—Sealings
    • E04B1/68—Sealings of joints, e.g. expansion joints
    • E04B1/6815—Expansion elements specially adapted for wall or ceiling parts
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/16—Sealings or joints
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66—Sealings
    • E04B1/68—Sealings of joints, e.g. expansion joints
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66—Sealings
    • E04B1/68—Sealings of joints, e.g. expansion joints
    • E04B1/6807—Expansion elements for parts cast in situ
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66—Sealings
    • E04B1/68—Sealings of joints, e.g. expansion joints
    • E04B1/681—Sealings of joints, e.g. expansion joints for free moving parts

Definitions

  • the present invention refers to an improvement to be used in a sealing element for expansion joints in several structures obtained in concrete, steel, or other materials,
  • sealing elements employed in the expansion joints of several structures, such as the concrete structures of dikes and other constructions, and obtained in copper, PVC mats, in the form of profiles in elastomeric material (such as polychloroprene, EPDM, butyl, nitrylic, natural rubber, SBR, Viton, and others) which are resistant to harsh weather conditions, alkalis, fungi, musts, oils, greases and other agents, or also in the form of silicone or polyurethane-based mastics.
  • elastomeric material such as polychloroprene, EPDM, butyl, nitrylic, natural rubber, SBR, Viton, and others
  • these known sealing elements Although being widely used and presenting operational results which meet the requirements of the structure to which they are applied, these known sealing elements have a time-consuming and expensive application and do not allow repair or recovering, in case there is an accident or localized rupture in the sealing element, after they have been installed and have begun to operate in the concrete structure.
  • the sealing element comprises an elastomeric profile, consisting of two longitudinal lateral flanges, to be seated and glued, each one, against one of the two confronting end edges of the expansion joint, upstream the structure, and a central portion, to be lodged in the interior of the expansion joint and configured to withstand the hydrostatic pressures on the upstream side of the structure.
  • the sealing element in order to support high hydrostatic pressures, as it occurs in the dikes, is usually provided with a reinforcing portion in the interior thereof, obtained in a synthetic material (for example, aramid, Rayon, Nylon, and others) or in steel, and which is extended along the longitudinal lateral flanges and the central portion. Said reinforcing portion considerably increases the resistance of the assembly, without impairing its free movement .
  • an improved sealing element for expansion joints of several structures, formed in concrete, steel or other materials
  • said sealing element comprising an elastomeric profile, having longitudinal lateral flanges for affixing a deformable central portion and a reinforcing portion made of a flexible mat
  • said sealing element presenting a construction resistant to large hydrostatic pressures and which can be obtained through very simple operations of forming the elastomeric profile and incorporating the reinforcing portion to said elastically deformable profile .
  • the present improvement is used in an expansion joint defining a seat, which is lowered in relation to the upstream of the structure portions, between which the expansion joint is defined.
  • the sealing element comprises: an elastomeric sealing profile, having two longitudinal lateral flanges, to be seated and affixed against the respective structure portions along the joint and presenting, each one, an outer edge and an inner edge, the latter being incorporated, in a single piece, to the inner edge of the other lateral flange, by a central portion to be lodged in the seat; and a reinforcing portion, in the form of a flexible mat, carried by the sealing profile .
  • each lateral flange comprises an upper portion joined to the central portion, in the region of the inner edge of the lateral flange, and a lower portion, which maintains a spacing in relation to the upper portion, being joined to the latter, in the region of the outer edge of the lateral flange, and to be seated and affixed in the respective structure portion, on the respective end edge of the expansion joint, the reinforcing portion presenting lateral portions lodged and glued, each one, in the spacing, defined between the upper and lower portions of a respective lateral flange, and a median portion disposed around the central portion of the sealing profile, downstream of the latter.
  • the new construction proposed by the present invention allows the sealing profile to be formed separately, by a simple and conventional extrusion process, the reinforcing portion having each one of its lateral portions being easily inserted between the upper and lower portions of a respective lateral flange of the already previously produced sealing profile, the median portion of the reinforcing portion remaining loosely disposed around the central portion of the sealing profile, in order to provide, to the latter, the required structural strength when the sealing profile is submitted to large hydrostatic pressures.
  • Figure 1 represents a perspective view of an extension of the sealing element of the invention, when applied to an expansion joint of a structure, further illustrating, in dashed lines, the position assumed by the sealing element when submitted to large hydrostatic pressures;
  • Figure 2 represents an enlarged cross-sectional view of the elastomeric profile of the sealing element illustrated in figure 1 and deprived of the reinforcing portion;
  • Figure 3 represents a view similar to that of figure 2, but illustrating the elastomeric profile already associated with a reinforcing portion in a synthetic fabric, with one of the longitudinal lateral flanges of the elastomeric profile being elastically deformed for adaptation of the reinforcing portion;
  • Figure 4 illustrates a lower perspective view of the sealing element illustrated in figure 1.
  • the present sealing element E is applied to an expansion joint 11 formed between two structure portions 10, in order to seal said expansion joint 11 on the upstream side of the structure portions 10, where the hydrostatic pressure is directly applied in the case of dikes, said expansion joint 11 presenting opposite and confronting end edges 11a, each one defined on the upstream side of a respective concrete structure 10.
  • the expansion joint 11 defines a seat 12, which is lowered in relation to the adjacent end edges 11a of the expansion joint 11, upstream the structure portions 10.
  • the seat 12 has a rectangular cross section with lateral walls 12a and, optionally, with a bottom wall (not illustrated) , but it should be understood that said cross section may present different shapes, generally extending throughout the whole thickness of the structure portions 10 that form the expansion joint 11.
  • the sealing element E comprises a sealing profile 20, in a single piece of an adequate elastomeric material (such as polychloroprene , EPDM, butyl, nitrylic, natural rubber, SBR, Viton, and others), which is pressed, calendered or extruded and vulcanized in its final form, in order to increase the resistance and reduce the porosity thereof, having two longitudinal lateral flanges 21, to be seated and affixed, usually by epoxy adhesive, against the respective structure portions 10, on the end edges 11a of the expansion joint 11, on both sides of the seat 12, and a central portion 22 to be lodged in the interior of the seat 12.
  • an adequate elastomeric material such as polychloroprene , EPDM, butyl, nitrylic, natural rubber, SBR, Viton, and others
  • Each lateral flange 21 presents an outer edge 21a and an inner edge 21b, the latter being incorporated, in a single piece, to the inner edge 21b of the other lateral flange 21, through the central portion 22.
  • the sealing element E further comprises a reinforcing portion 30, in the form of a flexible mat, made of a synthetic fabric formed by fibers of aramid, Rayon, Nylon, and the like, and which is carried by the sealing profile 20.
  • each lateral flange 21 comprises an upper portion 23 incorporated, in a single piece, to the central portion 22, in the region of the inner edge 21b of the lateral flange 21, and a lower portion 24 which maintains the same spacing 25, in relation to the upper portion 23, along the width of said lateral flange 21.
  • the lower portion 24 of the lateral flange 21 is incorporated, in a single piece, to the upper portion 23, only in the region of the outer edge 21a of the lateral flange 21, remaining disposed so as to have a lower face to be seated and affixed, generally by epoxy adhesive, in the respective structure portion 10, on the respective end edge 11a of the expansion joint 11.
  • the reinforcing portion 30 presents, in a single piece, lateral portions 31, opposite to each other and which are lodged and glued, each one, in the spacing D, defined between the upper portion 23 and lower portion 24 of a respective lateral flange 21, and a median portion 32, which is joined, in a single piece, to the lateral portions 31 and provided around the central portion 22 of the sealing profile 20, downstream the latter.
  • the reinforcing portion 30 is extended along the whole longitudinal extension of the sealing element E, presenting a thickness which corresponds to the spacing D between the upper and lower portions 23, 24 of the two lateral flanges 21.
  • the lateral portions 31 of the reinforcing portion 30 may be easily housed and affixed, by means of adhesive, between the upper portion 23 and lower portion 24 of the respective lateral flange 21.
  • adhesive In order to lodge the lateral portions 31 of the reinforcing portion 30 between the upper portion 23 and lower portion 24 of the respective lateral flange 21, it is only necessary to elastically move the lower portion 24 away from the upper portion 23, as indicated on the left side of figure 3.
  • each lateral flange 21 may be pressed one against the other, sandwiching and retaining, therebetween, each respective lateral portion 31 of the reinforcing portion 30.
  • the median portion 32 of the reinforcing portion 30 is dimensioned so that it can follow the contour of the central portion 22 of the sealing profile 20, downstream of the sealing element E.
  • the reinforcing portion 30 increases, considerably, the strength of the sealing element E, without impairing the free movement of its central portion 22, as illustrated in dashed lines in figure 1 of the appended drawings.
  • the central portion 22 of the sealing profile 20 presents a cross section defined by at least one loop in the form of U or V, having is base portion rounded and projecting to the interior of the expansion joint 11, and the ends of its lateral legs matching with the inner edges 21b of the two lateral flanges 21 and, eventually, matching with each other, through curved segments of the sealing profile 20, in the case of multiple loops having the section in the form of a double U, as illustrated, or in the form of a double V, that is, in the form of .
  • the height of the central portion 22 and the number of its loops in the form of U are defined as a function of the maximum deformation that the expansion joint 11 will be submitted in each specific application, and also of the dimensions of the equipment used for forming the sealing profile 20 in an elastomeric material to be vulcanized.
  • each lateral flange 21 of the sealing profile 20 carries, preferably incorporated in a single piece, in the region of the inner edge 21b, a projection 25 which is curved so as to project to the inside of the seat 12 of the expansion joint 11, along part of the lateral wall 12a of the seat 12.
  • Each projection 25 remains seated on the respective end edge 11a of the expansion joint 11, preventing the adjacent region of the reinforcing portion 30 from having a frictioning and wearing contact with the adjacent structure portion 10, at the end edge 11a of the expansion joint 11.
  • the lateral flanges ' 21 of the sealing profile 20 present a large width, having the face of the lower portion 24 of each lateral flange 21, turned to the respective structure portion 10, provided with mutually parallel and adjacent longitudinal grooves 26.
  • the longitudinal lateral flanges 21 present a width equal to that of the central portion 22.
  • said widths may vary, according to the forces to which the sealing element E will be submitted in each specific application.
  • the longitudinal lateral flanges 21 of the sealing profile 20 are further provided with through holes 27 along the extension thereof, for facilitating the introduction of pins (not illustrated) for fixation to the respective structure portion 10.

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  • General Engineering & Computer Science (AREA)
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Abstract

The sealing element (E) comprises: a sealing profile (20), having two lateral flanges (21) provided with an outer edge (21a) and an inner edge (21b) and joined by a central portion (22) to be lodged in an expansion joint (11) formed between two structure portions (10); and a reinforcing portion (30), in the form a flexible mat. Each lateral flange (21) has an upper portion (23) incorporated to the central portion (22), in the region of the inner edge (21b), and, a lower portion (24), which defines a spacing (D) with the upper portion (23) and which is incorporated to the latter, in the region of the outer edge (21a), and to be affixed in one of the structure portions (10). The reinforcing portion (30) has lateral portions (31) which are lodged and glued in the respective spacings (D), and a median portion (32) disposed around the central portion (22) of the sealing profile (20), downstream of the latter.

Description

IMPROVEMENT IN A SEALING ELEMENT FOR EXPANSION JOINTS Field of the Invention
The present invention refers to an improvement to be used in a sealing element for expansion joints in several structures obtained in concrete, steel, or other materials,
particularly, but not exclusively, the structures in which the sealing element is submitted to large structural movements and high hydrostatic pressures, as it occurs in dikes.
Background of the Invention
It is well known in the state of the art the sealing elements employed in the expansion joints of several structures, such as the concrete structures of dikes and other constructions, and obtained in copper, PVC mats, in the form of profiles in elastomeric material (such as polychloroprene, EPDM, butyl, nitrylic, natural rubber, SBR, Viton, and others) which are resistant to harsh weather conditions, alkalis, fungi, musts, oils, greases and other agents, or also in the form of silicone or polyurethane-based mastics.
Although being widely used and presenting operational results which meet the requirements of the structure to which they are applied, these known sealing elements have a time-consuming and expensive application and do not allow repair or recovering, in case there is an accident or localized rupture in the sealing element, after they have been installed and have begun to operate in the concrete structure.
Aiming at eliminating the deficiencies and limitations of said sealing elements, it was proposed the constructive solution described and claimed in Brazilian patent application PI 9903326-7, in the name of the present applicant. In said previous solution, the sealing element comprises an elastomeric profile, consisting of two longitudinal lateral flanges, to be seated and glued, each one, against one of the two confronting end edges of the expansion joint, upstream the structure, and a central portion, to be lodged in the interior of the expansion joint and configured to withstand the hydrostatic pressures on the upstream side of the structure.
The sealing element, in order to support high hydrostatic pressures, as it occurs in the dikes, is usually provided with a reinforcing portion in the interior thereof, obtained in a synthetic material (for example, aramid, Rayon, Nylon, and others) or in steel, and which is extended along the longitudinal lateral flanges and the central portion. Said reinforcing portion considerably increases the resistance of the assembly, without impairing its free movement .
Although said prior solution of the present applicant has a simple construction, being resistant to harsh weather conditions and to other deteriorating agents, elastically deformable in conjunction with the structure and capable of withstanding large hydrostatic pressures, with no risk of impairing its sealing characteristics, it presents an inconvenience related to the fact that is manufactured with the reinforcing portion, particularly when the latter is formed in a synthetic fabric.
The extrusion operations of the elastomeric sealing element, already incorporating the reinforcing portion in its interior, are complex, time-consuming and costly, making very problematic to incorporate said reinforcing portion in the interior of the elastomeric sealing element, mainly when said reinforcing portion is made of a synthetic fabric.
Disclosure of the Invention Thus, it is the object of the present invention to provide an improved sealing element, for expansion joints of several structures, formed in concrete, steel or other materials, said sealing element comprising an elastomeric profile, having longitudinal lateral flanges for affixing a deformable central portion and a reinforcing portion made of a flexible mat, said sealing element presenting a construction resistant to large hydrostatic pressures and which can be obtained through very simple operations of forming the elastomeric profile and incorporating the reinforcing portion to said elastically deformable profile .
In order to achieve the object cited above, the present improvement is used in an expansion joint defining a seat, which is lowered in relation to the upstream of the structure portions, between which the expansion joint is defined.
The sealing element comprises: an elastomeric sealing profile, having two longitudinal lateral flanges, to be seated and affixed against the respective structure portions along the joint and presenting, each one, an outer edge and an inner edge, the latter being incorporated, in a single piece, to the inner edge of the other lateral flange, by a central portion to be lodged in the seat; and a reinforcing portion, in the form of a flexible mat, carried by the sealing profile .
According to the invention, each lateral flange comprises an upper portion joined to the central portion, in the region of the inner edge of the lateral flange, and a lower portion, which maintains a spacing in relation to the upper portion, being joined to the latter, in the region of the outer edge of the lateral flange, and to be seated and affixed in the respective structure portion, on the respective end edge of the expansion joint, the reinforcing portion presenting lateral portions lodged and glued, each one, in the spacing, defined between the upper and lower portions of a respective lateral flange, and a median portion disposed around the central portion of the sealing profile, downstream of the latter.
The new construction proposed by the present invention allows the sealing profile to be formed separately, by a simple and conventional extrusion process, the reinforcing portion having each one of its lateral portions being easily inserted between the upper and lower portions of a respective lateral flange of the already previously produced sealing profile, the median portion of the reinforcing portion remaining loosely disposed around the central portion of the sealing profile, in order to provide, to the latter, the required structural strength when the sealing profile is submitted to large hydrostatic pressures. Brief Description of the Drawings
The invention will be described below, making reference to the appended drawings, in which:
Figure 1 represents a perspective view of an extension of the sealing element of the invention, when applied to an expansion joint of a structure, further illustrating, in dashed lines, the position assumed by the sealing element when submitted to large hydrostatic pressures;
Figure 2 represents an enlarged cross-sectional view of the elastomeric profile of the sealing element illustrated in figure 1 and deprived of the reinforcing portion;
Figure 3 represents a view similar to that of figure 2, but illustrating the elastomeric profile already associated with a reinforcing portion in a synthetic fabric, with one of the longitudinal lateral flanges of the elastomeric profile being elastically deformed for adaptation of the reinforcing portion; and
Figure 4 illustrates a lower perspective view of the sealing element illustrated in figure 1.
Description of the Invention
According to the illustrations mentioned above, the present sealing element E is applied to an expansion joint 11 formed between two structure portions 10, in order to seal said expansion joint 11 on the upstream side of the structure portions 10, where the hydrostatic pressure is directly applied in the case of dikes, said expansion joint 11 presenting opposite and confronting end edges 11a, each one defined on the upstream side of a respective concrete structure 10.
For application of the sealing element E, the expansion joint 11 defines a seat 12, which is lowered in relation to the adjacent end edges 11a of the expansion joint 11, upstream the structure portions 10.
In the illustrated embodiments, the seat 12 has a rectangular cross section with lateral walls 12a and, optionally, with a bottom wall (not illustrated) , but it should be understood that said cross section may present different shapes, generally extending throughout the whole thickness of the structure portions 10 that form the expansion joint 11.
According to the invention, the sealing element E comprises a sealing profile 20, in a single piece of an adequate elastomeric material (such as polychloroprene , EPDM, butyl, nitrylic, natural rubber, SBR, Viton, and others), which is pressed, calendered or extruded and vulcanized in its final form, in order to increase the resistance and reduce the porosity thereof, having two longitudinal lateral flanges 21, to be seated and affixed, usually by epoxy adhesive, against the respective structure portions 10, on the end edges 11a of the expansion joint 11, on both sides of the seat 12, and a central portion 22 to be lodged in the interior of the seat 12.
Each lateral flange 21 presents an outer edge 21a and an inner edge 21b, the latter being incorporated, in a single piece, to the inner edge 21b of the other lateral flange 21, through the central portion 22.
The sealing element E further comprises a reinforcing portion 30, in the form of a flexible mat, made of a synthetic fabric formed by fibers of aramid, Rayon, Nylon, and the like, and which is carried by the sealing profile 20.
According to the proposed improvement, each lateral flange 21 comprises an upper portion 23 incorporated, in a single piece, to the central portion 22, in the region of the inner edge 21b of the lateral flange 21, and a lower portion 24 which maintains the same spacing 25, in relation to the upper portion 23, along the width of said lateral flange 21.
The lower portion 24 of the lateral flange 21 is incorporated, in a single piece, to the upper portion 23, only in the region of the outer edge 21a of the lateral flange 21, remaining disposed so as to have a lower face to be seated and affixed, generally by epoxy adhesive, in the respective structure portion 10, on the respective end edge 11a of the expansion joint 11.
On its turn, the reinforcing portion 30 presents, in a single piece, lateral portions 31, opposite to each other and which are lodged and glued, each one, in the spacing D, defined between the upper portion 23 and lower portion 24 of a respective lateral flange 21, and a median portion 32, which is joined, in a single piece, to the lateral portions 31 and provided around the central portion 22 of the sealing profile 20, downstream the latter. The reinforcing portion 30 is extended along the whole longitudinal extension of the sealing element E, presenting a thickness which corresponds to the spacing D between the upper and lower portions 23, 24 of the two lateral flanges 21. With the proposed construction, the lateral portions 31 of the reinforcing portion 30 may be easily housed and affixed, by means of adhesive, between the upper portion 23 and lower portion 24 of the respective lateral flange 21. In order to lodge the lateral portions 31 of the reinforcing portion 30 between the upper portion 23 and lower portion 24 of the respective lateral flange 21, it is only necessary to elastically move the lower portion 24 away from the upper portion 23, as indicated on the left side of figure 3. After the lateral portions 31 of the reinforcing portion 30 have been mounted in the interior of the respective lateral flanges 21 of the sealing profile 20, with the adequate previous application of adhesive, the upper portion 23 and lower portion 24 of each lateral flange 21 may be pressed one against the other, sandwiching and retaining, therebetween, each respective lateral portion 31 of the reinforcing portion 30.
The median portion 32 of the reinforcing portion 30 is dimensioned so that it can follow the contour of the central portion 22 of the sealing profile 20, downstream of the sealing element E. The reinforcing portion 30 increases, considerably, the strength of the sealing element E, without impairing the free movement of its central portion 22, as illustrated in dashed lines in figure 1 of the appended drawings.
The central portion 22 of the sealing profile 20 presents a cross section defined by at least one loop in the form of U or V, having is base portion rounded and projecting to the interior of the expansion joint 11, and the ends of its lateral legs matching with the inner edges 21b of the two lateral flanges 21 and, eventually, matching with each other, through curved segments of the sealing profile 20, in the case of multiple loops having the section in the form of a double U, as illustrated, or in the form of a double V, that is, in the form of .
The height of the central portion 22 and the number of its loops in the form of U are defined as a function of the maximum deformation that the expansion joint 11 will be submitted in each specific application, and also of the dimensions of the equipment used for forming the sealing profile 20 in an elastomeric material to be vulcanized.
In the illustrated construction, the lower portion 24 of each lateral flange 21 of the sealing profile 20 carries, preferably incorporated in a single piece, in the region of the inner edge 21b, a projection 25 which is curved so as to project to the inside of the seat 12 of the expansion joint 11, along part of the lateral wall 12a of the seat 12. Each projection 25 remains seated on the respective end edge 11a of the expansion joint 11, preventing the adjacent region of the reinforcing portion 30 from having a frictioning and wearing contact with the adjacent structure portion 10, at the end edge 11a of the expansion joint 11.
Aiming at increasing the gluing area, as well as the shearing strength, promoting a non-concentrated distribution of forces and avoiding stresses over the end edges 11a of the expansion joint 11, which stresses increase the possibility of concrete rupture at 45°, the lateral flanges' 21 of the sealing profile 20 present a large width, having the face of the lower portion 24 of each lateral flange 21, turned to the respective structure portion 10, provided with mutually parallel and adjacent longitudinal grooves 26.
In the illustrated construction, the longitudinal lateral flanges 21 present a width equal to that of the central portion 22. However, it should be understood that said widths may vary, according to the forces to which the sealing element E will be submitted in each specific application.
The longitudinal lateral flanges 21 of the sealing profile 20 are further provided with through holes 27 along the extension thereof, for facilitating the introduction of pins (not illustrated) for fixation to the respective structure portion 10.
While not illustrated herein, it should be understood that it may be further provided a metallic plate, seated on each lateral flange 21 and affixed to the respective structure portion 10 by means of pins or bolts disposed through the holes 27. Said metallic plates increase even more the anchorage of the lateral flanges 21 in the respective structure portions 10. Other changes as to the form and relative arrangement of the component parts can be made, without departing from the constructive concept defined in the claims that accompany the present disclosure.

Claims

1. An improvement in a sealing element for expansion joints provided between structure portions (10), each one of said expansion joints (11) defining a seat (12) lowered in relation to the upstream of the structure portions (10), said sealing element (E) comprising: an elastomeric sealing profile (20) , having two longitudinal lateral flanges (21), to be seated and affixed against the respective structure portions (10) and presenting, each one, an outer edge (21a) and an inner edge (21b) , the latter being incorporated, in a single piece, to the inner edge (21b) of the other lateral flange (21) by a central portion (22) to be housed in the seat (12); and a reinforcing portion (30) , in the form of a flexible mat, carried by the sealing profile (20), the improvement being characterized in that each lateral flange (21) comprises an upper portion (23) incorporated, in a single piece, to the central portion (22), in the region of the inner edge (21b) of the lateral flange (21), and a lower portion (24), which maintains a spacing (D) in relation to the upper portion (23) and which is incorporated to the latter, in the region of the outer edge (21a) of the lateral flange (21), and to be seated and affixed in the respective structure portion (10), onto the respective end edge (11a) of the expansion joint (11), the reinforcing portion (30) presenting lateral portions (31) which are lodged and glued, each one, in the spacing (D), defined between the upper portion (23) and lower portion (24) of a respective lateral flange (21), and a median portion (32) disposed around the central portion (22) of the sealing profile (20), downstream of the latter.
2. The improvement, according to claim 1, characterized in that the central portion (22) of the sealing profile (20) presents a cross section defined by at least one loop in the form of U or V, having its base portion rounded and projecting to the interior of the expansion joint (11) and the ends of its lateral legs matching with the inner edges (21b) of the two lateral flanges (21) and, eventually, with each other, by means of curved segments of the sealing profile (20) .
3. The improvement, according to any one of claims 1 or 2, characterized in that the lower portion (24) of each lateral flange (21) of the sealing profile (20) carries, in the region of the inner edge (21b), a projection (25) which is curved so as to project to the inside of the seat (12) of the expansion joint (11) and to remain seated onto the respective end edge (11a) of the expansion joint (11) .
4. The improvement, according to claim 3, characterized in that the projection (25) of each lateral flange (21) is incorporated, in a single piece, to the lower portion (24) of the respective lateral flange (21), in the region of the inner edge (21b) of the latter.
5. The improvement, according to any one of claims 1 to 4, characterized in that the reinforcing portion (30) is defined in a synthetic fabric and extends along the whole longitudinal extension of the sealing element (E) , presenting a thickness which corresponds to the spacing (D) between the upper portion (23) and lower portion (24) of the two lateral flanges (21) .
6. The improvement, according to any one of claims 1 to 5, characterized in that the median portion (32) of the reinforcing portion (30) follows the contour of the central portion (22) of the sealing profile (20), on the downstream side of the sealing element (E) .
7. The improvement, according to any one of claims 1 to 6, characterized in that the lower portion (24) of each lateral flange (21) of the sealing profile (20) has a face turned to the respective structure portion (10) and is provided with longitudinal grooves (26) which are mutually parallel and adjacent.
8. The improvement, according to any one of claims 1 to 7, characterized in that the lateral flanges (21) are provided with through holes (27) for the introduction of pins for fixation to the structure portions (10) .
PCT/BR2013/000103 2012-03-30 2013-04-01 Improvement in a sealing element for expansion joints WO2013142940A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BRBR1020120072637 2012-03-30
BR102012007263-7A BR102012007263B1 (en) 2012-03-30 2012-03-30 improvement in sealing element for expansion joint

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014166996A1 (en) * 2013-04-09 2014-10-16 Carpi Tech B.V. Method and device for covering and waterproofing joints in hydraulic works
DE102015120051A1 (en) * 2015-11-19 2017-05-24 Gerlinger Gmbh & Co. Kg sealing tape
CN112900915A (en) * 2021-01-25 2021-06-04 南京坤佳防水防腐保温工程有限公司 Seepage repairing process for roof with roof settlement joint

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001006071A1 (en) * 1999-07-19 2001-01-25 Calixto Jorge Gabrielli Zachar A sealing element for expansion joints

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001006071A1 (en) * 1999-07-19 2001-01-25 Calixto Jorge Gabrielli Zachar A sealing element for expansion joints

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014166996A1 (en) * 2013-04-09 2014-10-16 Carpi Tech B.V. Method and device for covering and waterproofing joints in hydraulic works
JP2016519730A (en) * 2013-04-09 2016-07-07 カルピ、テック、ベスローテン、フェンノートシャップＣａｒｐｉ Ｔｅｃｈ Ｂ．Ｖ． Method and device for waterproofing over seams of structures subject to water pressure
AU2014253178B2 (en) * 2013-04-09 2018-06-07 Carpi Tech B.V. Method and device for covering and waterproofing joints in hydraulic works
EA031236B1 (en) * 2013-04-09 2018-12-28 Карпи Тех Б.В. Method and device for covering and waterproofing joints in hydraulic works
DE102015120051A1 (en) * 2015-11-19 2017-05-24 Gerlinger Gmbh & Co. Kg sealing tape
EP3170960B1 (en) * 2015-11-19 2020-07-01 Gerlinger GmbH & Co. KG Sealing tape
CN112900915A (en) * 2021-01-25 2021-06-04 南京坤佳防水防腐保温工程有限公司 Seepage repairing process for roof with roof settlement joint

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BR102012007263A2 (en) 2018-11-13

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