CA1178098A - Expansion joint sealing structures - Google Patents
Expansion joint sealing structuresInfo
- Publication number
- CA1178098A CA1178098A CA000399824A CA399824A CA1178098A CA 1178098 A CA1178098 A CA 1178098A CA 000399824 A CA000399824 A CA 000399824A CA 399824 A CA399824 A CA 399824A CA 1178098 A CA1178098 A CA 1178098A
- Authority
- CA
- Canada
- Prior art keywords
- joint
- pavement
- frame
- frames
- elastomer
- 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
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 17
- 229920001971 elastomer Polymers 0.000 claims description 21
- 239000000806 elastomer Substances 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 15
- 239000007787 solid Substances 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 239000011324 bead Substances 0.000 abstract description 16
- 229910000831 Steel Inorganic materials 0.000 abstract description 11
- 239000010959 steel Substances 0.000 abstract description 11
- 210000003739 neck Anatomy 0.000 description 15
- 238000001125 extrusion Methods 0.000 description 4
- 229920001084 poly(chloroprene) Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- -1 dirt Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
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
- E01D19/06—Arrangement, construction or bridging of expansion joints
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
- E01C11/04—Arrangement or construction of joints; Methods of making joints; Packing for joints for cement concrete paving
- E01C11/12—Packing of metal and plastic or elastic materials
- E01C11/126—Joints with only metal and prefabricated packing or filling
Abstract
ABSTRACT OF THE DISCLOSURE An expansion joint for sealing joints in roadway pavements, bridge pavements, and the like. The expansion joint has a pair of elongated steel frames respectively extending along opposite sides of the joint, and a sealing strip of V-shape which becomes a deeper or shallower V as the joint narrows or widens under temperature changes. Edges of the sealing strip are formed as beads of triangular transverse cross-section which are received within slots in the frames.
Description
~,.7~30~3 ., . . , . , _ . ... .....
BACKGROUND OF THE INVENTION AND PRIOR ART
There have been many structures proposed for sealing joints in roadway pavemen~s, bridge pavements, and the like.
The objective is to prevent water and solid foreign substances from penetrating the space, called a joint, between adjacent sections of concrete pavement -- such spaces being provided to accommodate the expansion of the respective concrete pavement sections during warm and hot weather and contraction thereof in cool and cold weather.
Some sealing structures previously used include elastomer extrusions of various external and internal geometric configuration, while others use a combination of metal frames, beams or the like with elastomer members between the frames, beams, etc., to provide the sealing function and at the same time accommodating the changes in the joint width as the concrete expands and contracts during climatic temperature changes.
THE INVENTION
-The subject invention constitutes improvements in joint sealing structures commonly referred to as expansion ~7~98 t dams or expansion joint seals. The sealing structures utilize a pair of elongated rolled steel f~ames respectively extending along opposite sides of the joint. Preferably they are substantially flush with the surface of the pavement and do not protrude in the vertical plane beyond the opposed faces of the spaced concrete sections at the joint.
The rolled steel frames are rolled steel strips of ordinary or stainless steel. The top, rear and bottom walls are substantially flat (planar); the corners preferably are rounded. The fourth wall or face is situated on the joint side and has an upper portion and a lower portion forming a longitudinal slot in which the longitudinal edges of an elastomer sealing strip are interlocked.
~ The upper portion preferably is a rearwardly, diagonally sloping wall which extends toward but stops short of the rear wall. The lower portion may be a curved wall or may have a short straight wall segment parallel with the rear wall and a sharp bend to provide a terminal, diagonal edge segment which is substantially parallel with the diagonal upper portion.
In either case, the longitudinal opening or the short passage forming the opening forms a pair of spaced, longitudinal shoulders used to interlock the longitudinal lips of the elastomer sealing strip in the respective frames.
The sealing strip is an elongated extrusion of weather-resistant synthetic rubber, preferably neoprene. In cross-section, it has a V-shape which becomes a deeper or shallower V as the joint narrows or widens under temperature changes. Its respective longitudinal edges comprise a strip 117~09~3 forming a neck which is preferably slightly the same width as or wider than the width of the slot in the frames. At the outer end of each neck is a bead of triangular transverse cross section. The neck is attached to the mid-portion of one of the sides of the triangle -- thereby forming lips or shoulders which lock the triangular bead inside the rolled steel frame after the bead has been forced through the above-described opening in each frame.
In another form, the metal frames are metal extrusions, preferably of ordinary or stainless steel. The top, rear and bottom walls are substantially flat (planar);
the corners preferably are rounded. The fourth front wall or face is situated on the joint side and has an upper portion and a lower portion forming a longitudinal slot in which the longitudinal edges of an elastomer sealing s'rip are interlocked.
The upper portion is solid metal with a rearwardly, diagonally sloping front wall which extends toward but stops short of the rear wall of the frame. The lower portion is also solid metal and has a curved front wall or a short straight front wall segment parallel with the rear wall and an upper, sharp bend between it and an upper, diagonal edge segment which is substantially parallel with the diagonal front wall of the upper portion. .
In either case, the longitudinal opening or the short passage between the diagonal front wall and diagonal edge segment and forming the longitudinal slot has a pair of spaced, longitudinal shoulders used to interlock the longitudinal lips of the elastomer sealing strip in the 11~8~C~
respective frames.
PREFERRED EMBODIMENTS
Preferred embodiments of the invention are illustra-ted in the drawings wherein:
IN T~E DRAWINGS:
Fig. 1 is a cross-section view of two pavement sections with a joint therebetween, the latter being sealed by a first embodiment of an expansion dam of the invention;
Fig. 2 is a section view similar to Fig. 1, with a different structure for mounting each frame in the pavement;
Fig. 3 is a cross-section view of two pavement sec tions with a cast-in retainer strip seal;
Fig. 4 is a cross-section view showing two pavement sections with a joint therebetween, the latter being sealed by a first embodiment of an expansion dam of the invention;
Fig. 5 is a section view similar to Fig. 1, with a different structure for mounting each frame in the pavement; and Fig. 6 is a cross-section view of two pavement sec-tions with a cast-in retainer strip seal.
Referring to the drawings, the expansion dam 10 of Fig. 1 seals the space or joint 11 provided between adjacent pavement sections 12 and 13 and having a width sufficient to allow the pavement sections to expand without coming into abutt-ing contact. The expansion dam is composed of an elongated first retainer section or frame 15 on one side of the joint and a second elongated retainer section or frame 16 on the other side of the joint. An elongated neoprene elastomer strip 17 spans the joint and seals it against intrusion by water, dirt, stones and other foreign substances.
The respective steel sections or frames are shaped into the cross-sections shown by known steel-rolling tech-niques. Each section has a top wall 20, rear wall 21, bottom wall 22, a transversely curved, hcok-shaped lower i~7#098 segment 24 in the front wall and a downwardly and rear-wardly sloping upper segment of the front wall.
The upper and lower segments are separated in a manner forming an elongated, longitudinal slot into which the respective longitudinal edges of the elastomer strip are inserted and locked. The elastomer strip 17 comprises a center, V-section 30 which becomes deeper or shallower as the joint narrows or widens. The V-section is connected by respective narrow strips 31 to respective necks 32. An elongated bead of triangular cross-section is connected at the mid-portion of one of its sides to the neck. One or more longitudinal passages 38 and 39 may be provided in the triangular bead portion to increase the deformability thereof.
The neck 32 has a width substantially the same as the distance between the longitudinal edge 38 of the transversely curved lower portion 24 and the surface of the sloping upper segment 2 3. The triangular bead 33 is sufficiently deformable so that it can be forced through the elongated slot -- the passages 38 and 39 aiding the deformability as the bead 33 is forced through the slot.
The beads 33 in seated position in the slots are shown in Fig. 1. The longitudinal lips 34 and 35 on each side of the neck 32 seal against the edge of the upper segment 23 and the inside surface of the transversely curved lower portion 35 to lock the longitudinal edges of the elastomer sealing strip 17 in the sections or frames 15 and 16.
The latter may be mounted in the pavement sections by any suitable means, e.g., by using at spaced intervals ~78~g8 loop anchor bars 40 and 41 embedded in the pavement and in turn welded to vertical plates 43 and 44. The latter in turn are fixedly connected to the frames or sections 15 and 16. The plates optionally may have holes 45 and 46 adapted to receive steel anchor bars used in the overall joint assembly.
The embodiment of Fig. 2 is similar to that of Fig. 1. Where applicable, like numerals designate like parts. Whereas the top walls 20 of the frames or sections 15 and 16 are flush with the pavement surface, the top walls 20 in Fig. 2 are recessed slightly below the pavement surfaces 12a and 13a. Further, the frames or sections 15 and 16 are mounted in place by attachment thereof at longitudinal intervals~to vertical plates 50 and 51. The latter are each welded to a loop anchor. Each loop anchor 52, 53, in turn is supported by steel bars 55 62.
The embodiment of Fig. 3 is a cast-in retainer strip seal in whcih the joint 72 between pavement sections 70 and 71 is sealed by a similar elastomer strip 17a having a medial V-section 18. The latter is recessed well below the upper surface of the pavement sections. The strip-gripping elongated frames or sections 73 and 74 have a top wall 75, a rear wall 76, a bottom wall 77, and a front wall.
The front wall has two segments -- a lower segment 78 terminating with a downwardly and rearwardly sloping lip 79, and a downwardly and rearwardly sloping upper segment 80 of the front wall. The frames or sections 73 and 74 are held in place in the pavement with the front wall being substantially flush with the respective face 82 and 83 by anchors 81.
~7~38 The elastomer seal is mounted in the frames or sections 73, 74, by forcing each deformable triangular bead 33 through its continuous lonyitudinal slot formed between the segment 80 and the lip 79. The lips 34 and 35 lock the respective longitudinal edges in place as shown in Fig. 3. Flexible neck portions 19 connect the V-segment 18 with necks 32.
Another embodiment of the invention is illustrated in Figs. 4, 5 and 6.
Many of the parts of the joints and dams of Figs. 4-6 are the same as in Figs. 1-3. Where applicable, like parts in Figs. 4-6 have the same reference numeral as do the parts in Figs. 1-3, supra. The notable difference is in the use of solid, extruded metal, side frames, instead of hollow, rolled steel side frames.
Referring to the drawings, the expansion dam 10 of Fig. 4 seals the space or joint 11 provided between adjacent pavement sections 12 and 13 and having a width sufficient to allow the pavement sections to expand without coming into abutting contact.
The expansion dam is composed of an elongated first retainer section or frame 15 on one side of ~7~'3~
the joint and a second elongated retainer section or frame 16 on the other side of the joint. An elongated neoprene elastomer strip 17 spans the joint and seals it against intrusion by water, dirt, stones and other foreign substances.
The respective metal frames are shaped into the cross-sections shown by known metal extrusion techniques.
Each section has a top wall 20, rear wall 21, bottom wall 22, a solid metal lower segment 24 in the front wall and solid metal upper segment with a downwardly and rearwardly sloping front wall, i.e., segment 23.
The upper and lower segments are separated in a manner forming an elongated, longitudinal slot into which the respective longitudinal edges of the elastomer strip are inserted and locked. The elastomer strip 17 comprises a center, V-section 30 which becomes deeper or shallower às the joint narrows or widens. The V-section is connected by respective narrow strips 31 to respective necks 32. An elongated bead 33 of triangular cross-section is connected at the mid-portion of one of its sides to the neck. One or more longitudinal passages 38 and 39 may be provided in the triangular bead portion to increase the deformability thereof.
The neck 32 has a width substantially the same as the distance between the longitudinal lip 35 of the transversely curved front wall 37 of the lower portion 24 and the surface of the diagonally sloping front wall of the upper segment 23. The triangular bead 33 is sufficiently deformable so that it can be forced through the elongated slot 36 -- the passages 38 and 39 aiding the deformability as the bead 33 is forced through the slot.
.
~7~
The beads 33 in seated position in the slots are shown in Fig. 4. The longitudinal lips 34 and 35 on each side of the neck 32 seal against the edge of the upper segment 23 and the inside surface of the transversely curved lower portion 35 to lock the longitudinal edges of the elastomer sealing strip 17. in the sections or frames 15 and 16.
The latter may be mounted in the pavement sections by any suitable means, e g., by using at spaced intervals loop anchor bars 40 and 41 embedded in the pavement and in turn welded to vertical plates 43 and 44. The latter in ~urn are fixedly connected to the frames or sections 15 and 16.
The plates optionally may have holes 45 and 46 adapted to receive steel anchor bars used in the overall ~oint assembly.
The embodiment of Fig. 5 is similar to that of Fig. 4. Where applicable, like numerals designate like parts.
~hereas the top walls 20 of the frames or sections 15 and 16 are flush with the pavement surface, the top walls 20 in Fig. 5 are recessed slightly below the pavement surfaces 12a and 13a. Further, the frames or sections 15 and 16 are mounted in place by attachment thereof at longitudinal intervals to vertical plates 50 and 51. The latter are each welded to a loop anchor. Each loop anchor 52, 53, in turn is supported by steel bars 55-62.
The embodiment of Fig. 6 is a cast-in retainer strip seal in which the joint 72 between pavement sections 70 and 71 is sealed by a similar elastomer strip 17a having a medial V-section 18. The latter is recessed well below the upper surface of the pavement sections. The strip-~ g _ .
~7~
gripping elongated frames or sections 73 and 74 have a topwall 75, a rear wall 76, a bottom wall 77, and a front wall.
The front wall has two segments -- a solid metal lower se,gment 78 terminating with a downwardly and rearwardly sloping lip 79, and a solid metal upper segment 80 with a rearwardly sloping front wall. The frames or sections 73 and 74 are held in place in the pavement with the front wall being substantially flush with,the respective face 82 and 83 by anchors 81.
The elastomer seal 17a is mounted in the frames or sections 73, 74, by forcing each deformable triangular bead 33 through its continuous longitudinal slot 84 formed between and below the seg~ent 80 and the lip 79. The lips 34 and 35 lock the respective longitudinal edges in place as shown in Fig. 6. Flexible neck portions 19 connect thè
V-segment 18 with necks 32.
. .
BACKGROUND OF THE INVENTION AND PRIOR ART
There have been many structures proposed for sealing joints in roadway pavemen~s, bridge pavements, and the like.
The objective is to prevent water and solid foreign substances from penetrating the space, called a joint, between adjacent sections of concrete pavement -- such spaces being provided to accommodate the expansion of the respective concrete pavement sections during warm and hot weather and contraction thereof in cool and cold weather.
Some sealing structures previously used include elastomer extrusions of various external and internal geometric configuration, while others use a combination of metal frames, beams or the like with elastomer members between the frames, beams, etc., to provide the sealing function and at the same time accommodating the changes in the joint width as the concrete expands and contracts during climatic temperature changes.
THE INVENTION
-The subject invention constitutes improvements in joint sealing structures commonly referred to as expansion ~7~98 t dams or expansion joint seals. The sealing structures utilize a pair of elongated rolled steel f~ames respectively extending along opposite sides of the joint. Preferably they are substantially flush with the surface of the pavement and do not protrude in the vertical plane beyond the opposed faces of the spaced concrete sections at the joint.
The rolled steel frames are rolled steel strips of ordinary or stainless steel. The top, rear and bottom walls are substantially flat (planar); the corners preferably are rounded. The fourth wall or face is situated on the joint side and has an upper portion and a lower portion forming a longitudinal slot in which the longitudinal edges of an elastomer sealing strip are interlocked.
~ The upper portion preferably is a rearwardly, diagonally sloping wall which extends toward but stops short of the rear wall. The lower portion may be a curved wall or may have a short straight wall segment parallel with the rear wall and a sharp bend to provide a terminal, diagonal edge segment which is substantially parallel with the diagonal upper portion.
In either case, the longitudinal opening or the short passage forming the opening forms a pair of spaced, longitudinal shoulders used to interlock the longitudinal lips of the elastomer sealing strip in the respective frames.
The sealing strip is an elongated extrusion of weather-resistant synthetic rubber, preferably neoprene. In cross-section, it has a V-shape which becomes a deeper or shallower V as the joint narrows or widens under temperature changes. Its respective longitudinal edges comprise a strip 117~09~3 forming a neck which is preferably slightly the same width as or wider than the width of the slot in the frames. At the outer end of each neck is a bead of triangular transverse cross section. The neck is attached to the mid-portion of one of the sides of the triangle -- thereby forming lips or shoulders which lock the triangular bead inside the rolled steel frame after the bead has been forced through the above-described opening in each frame.
In another form, the metal frames are metal extrusions, preferably of ordinary or stainless steel. The top, rear and bottom walls are substantially flat (planar);
the corners preferably are rounded. The fourth front wall or face is situated on the joint side and has an upper portion and a lower portion forming a longitudinal slot in which the longitudinal edges of an elastomer sealing s'rip are interlocked.
The upper portion is solid metal with a rearwardly, diagonally sloping front wall which extends toward but stops short of the rear wall of the frame. The lower portion is also solid metal and has a curved front wall or a short straight front wall segment parallel with the rear wall and an upper, sharp bend between it and an upper, diagonal edge segment which is substantially parallel with the diagonal front wall of the upper portion. .
In either case, the longitudinal opening or the short passage between the diagonal front wall and diagonal edge segment and forming the longitudinal slot has a pair of spaced, longitudinal shoulders used to interlock the longitudinal lips of the elastomer sealing strip in the 11~8~C~
respective frames.
PREFERRED EMBODIMENTS
Preferred embodiments of the invention are illustra-ted in the drawings wherein:
IN T~E DRAWINGS:
Fig. 1 is a cross-section view of two pavement sections with a joint therebetween, the latter being sealed by a first embodiment of an expansion dam of the invention;
Fig. 2 is a section view similar to Fig. 1, with a different structure for mounting each frame in the pavement;
Fig. 3 is a cross-section view of two pavement sec tions with a cast-in retainer strip seal;
Fig. 4 is a cross-section view showing two pavement sections with a joint therebetween, the latter being sealed by a first embodiment of an expansion dam of the invention;
Fig. 5 is a section view similar to Fig. 1, with a different structure for mounting each frame in the pavement; and Fig. 6 is a cross-section view of two pavement sec-tions with a cast-in retainer strip seal.
Referring to the drawings, the expansion dam 10 of Fig. 1 seals the space or joint 11 provided between adjacent pavement sections 12 and 13 and having a width sufficient to allow the pavement sections to expand without coming into abutt-ing contact. The expansion dam is composed of an elongated first retainer section or frame 15 on one side of the joint and a second elongated retainer section or frame 16 on the other side of the joint. An elongated neoprene elastomer strip 17 spans the joint and seals it against intrusion by water, dirt, stones and other foreign substances.
The respective steel sections or frames are shaped into the cross-sections shown by known steel-rolling tech-niques. Each section has a top wall 20, rear wall 21, bottom wall 22, a transversely curved, hcok-shaped lower i~7#098 segment 24 in the front wall and a downwardly and rear-wardly sloping upper segment of the front wall.
The upper and lower segments are separated in a manner forming an elongated, longitudinal slot into which the respective longitudinal edges of the elastomer strip are inserted and locked. The elastomer strip 17 comprises a center, V-section 30 which becomes deeper or shallower as the joint narrows or widens. The V-section is connected by respective narrow strips 31 to respective necks 32. An elongated bead of triangular cross-section is connected at the mid-portion of one of its sides to the neck. One or more longitudinal passages 38 and 39 may be provided in the triangular bead portion to increase the deformability thereof.
The neck 32 has a width substantially the same as the distance between the longitudinal edge 38 of the transversely curved lower portion 24 and the surface of the sloping upper segment 2 3. The triangular bead 33 is sufficiently deformable so that it can be forced through the elongated slot -- the passages 38 and 39 aiding the deformability as the bead 33 is forced through the slot.
The beads 33 in seated position in the slots are shown in Fig. 1. The longitudinal lips 34 and 35 on each side of the neck 32 seal against the edge of the upper segment 23 and the inside surface of the transversely curved lower portion 35 to lock the longitudinal edges of the elastomer sealing strip 17 in the sections or frames 15 and 16.
The latter may be mounted in the pavement sections by any suitable means, e.g., by using at spaced intervals ~78~g8 loop anchor bars 40 and 41 embedded in the pavement and in turn welded to vertical plates 43 and 44. The latter in turn are fixedly connected to the frames or sections 15 and 16. The plates optionally may have holes 45 and 46 adapted to receive steel anchor bars used in the overall joint assembly.
The embodiment of Fig. 2 is similar to that of Fig. 1. Where applicable, like numerals designate like parts. Whereas the top walls 20 of the frames or sections 15 and 16 are flush with the pavement surface, the top walls 20 in Fig. 2 are recessed slightly below the pavement surfaces 12a and 13a. Further, the frames or sections 15 and 16 are mounted in place by attachment thereof at longitudinal intervals~to vertical plates 50 and 51. The latter are each welded to a loop anchor. Each loop anchor 52, 53, in turn is supported by steel bars 55 62.
The embodiment of Fig. 3 is a cast-in retainer strip seal in whcih the joint 72 between pavement sections 70 and 71 is sealed by a similar elastomer strip 17a having a medial V-section 18. The latter is recessed well below the upper surface of the pavement sections. The strip-gripping elongated frames or sections 73 and 74 have a top wall 75, a rear wall 76, a bottom wall 77, and a front wall.
The front wall has two segments -- a lower segment 78 terminating with a downwardly and rearwardly sloping lip 79, and a downwardly and rearwardly sloping upper segment 80 of the front wall. The frames or sections 73 and 74 are held in place in the pavement with the front wall being substantially flush with the respective face 82 and 83 by anchors 81.
~7~38 The elastomer seal is mounted in the frames or sections 73, 74, by forcing each deformable triangular bead 33 through its continuous lonyitudinal slot formed between the segment 80 and the lip 79. The lips 34 and 35 lock the respective longitudinal edges in place as shown in Fig. 3. Flexible neck portions 19 connect the V-segment 18 with necks 32.
Another embodiment of the invention is illustrated in Figs. 4, 5 and 6.
Many of the parts of the joints and dams of Figs. 4-6 are the same as in Figs. 1-3. Where applicable, like parts in Figs. 4-6 have the same reference numeral as do the parts in Figs. 1-3, supra. The notable difference is in the use of solid, extruded metal, side frames, instead of hollow, rolled steel side frames.
Referring to the drawings, the expansion dam 10 of Fig. 4 seals the space or joint 11 provided between adjacent pavement sections 12 and 13 and having a width sufficient to allow the pavement sections to expand without coming into abutting contact.
The expansion dam is composed of an elongated first retainer section or frame 15 on one side of ~7~'3~
the joint and a second elongated retainer section or frame 16 on the other side of the joint. An elongated neoprene elastomer strip 17 spans the joint and seals it against intrusion by water, dirt, stones and other foreign substances.
The respective metal frames are shaped into the cross-sections shown by known metal extrusion techniques.
Each section has a top wall 20, rear wall 21, bottom wall 22, a solid metal lower segment 24 in the front wall and solid metal upper segment with a downwardly and rearwardly sloping front wall, i.e., segment 23.
The upper and lower segments are separated in a manner forming an elongated, longitudinal slot into which the respective longitudinal edges of the elastomer strip are inserted and locked. The elastomer strip 17 comprises a center, V-section 30 which becomes deeper or shallower às the joint narrows or widens. The V-section is connected by respective narrow strips 31 to respective necks 32. An elongated bead 33 of triangular cross-section is connected at the mid-portion of one of its sides to the neck. One or more longitudinal passages 38 and 39 may be provided in the triangular bead portion to increase the deformability thereof.
The neck 32 has a width substantially the same as the distance between the longitudinal lip 35 of the transversely curved front wall 37 of the lower portion 24 and the surface of the diagonally sloping front wall of the upper segment 23. The triangular bead 33 is sufficiently deformable so that it can be forced through the elongated slot 36 -- the passages 38 and 39 aiding the deformability as the bead 33 is forced through the slot.
.
~7~
The beads 33 in seated position in the slots are shown in Fig. 4. The longitudinal lips 34 and 35 on each side of the neck 32 seal against the edge of the upper segment 23 and the inside surface of the transversely curved lower portion 35 to lock the longitudinal edges of the elastomer sealing strip 17. in the sections or frames 15 and 16.
The latter may be mounted in the pavement sections by any suitable means, e g., by using at spaced intervals loop anchor bars 40 and 41 embedded in the pavement and in turn welded to vertical plates 43 and 44. The latter in ~urn are fixedly connected to the frames or sections 15 and 16.
The plates optionally may have holes 45 and 46 adapted to receive steel anchor bars used in the overall ~oint assembly.
The embodiment of Fig. 5 is similar to that of Fig. 4. Where applicable, like numerals designate like parts.
~hereas the top walls 20 of the frames or sections 15 and 16 are flush with the pavement surface, the top walls 20 in Fig. 5 are recessed slightly below the pavement surfaces 12a and 13a. Further, the frames or sections 15 and 16 are mounted in place by attachment thereof at longitudinal intervals to vertical plates 50 and 51. The latter are each welded to a loop anchor. Each loop anchor 52, 53, in turn is supported by steel bars 55-62.
The embodiment of Fig. 6 is a cast-in retainer strip seal in which the joint 72 between pavement sections 70 and 71 is sealed by a similar elastomer strip 17a having a medial V-section 18. The latter is recessed well below the upper surface of the pavement sections. The strip-~ g _ .
~7~
gripping elongated frames or sections 73 and 74 have a topwall 75, a rear wall 76, a bottom wall 77, and a front wall.
The front wall has two segments -- a solid metal lower se,gment 78 terminating with a downwardly and rearwardly sloping lip 79, and a solid metal upper segment 80 with a rearwardly sloping front wall. The frames or sections 73 and 74 are held in place in the pavement with the front wall being substantially flush with,the respective face 82 and 83 by anchors 81.
The elastomer seal 17a is mounted in the frames or sections 73, 74, by forcing each deformable triangular bead 33 through its continuous longitudinal slot 84 formed between and below the seg~ent 80 and the lip 79. The lips 34 and 35 lock the respective longitudinal edges in place as shown in Fig. 6. Flexible neck portions 19 connect thè
V-segment 18 with necks 32.
. .
Claims (4)
1. An expansion joint between adjacent pavement sections with an elastomer seal comprising a first metal frame mounted on and extending along one side of said joint, an opposing second metal frame mounted on and extending along the other side of said joint, and an elastomer sealing strip spanning the joint and having longitudinal edges each extending in an outward and downward direc-tion and having a neck portion with a distortable point of sub-stantially triangular cross-section, by means of which said longi-tudinal edge is seated in interlocking relationship in its respec-tive frame, each said frame being of solid extruded metal forming a front wall, facing the opposite frame, which includes an upper and lower segment with slanted surfaces defining an outwardly and downwardly extending slot widening into a cavity, said slanted surface of the upper segment terminating in a shoulder defining part of said cavity, and the upper surface of the neck portion of said elastomer strip having an elongated neck surface which is slanted the same as the slanted surface of the upper segment and which, upon insertion of the distorable point of the longitudinal edge of the strip into its respective frame engages the slanted surface of the upper segment, in cooperation with said lower segment, while the base of said triangular point bears against said shoulder so as to prohibit withdrawal therefrom and to hold said elastomer strip securely in position.
2. An expansion joint as claimed in Claim 1, wherein the central portion of said elastomer seal is a V-shaped segment.
3. An expansion joint as claimed in Claim 1, wherein each frame has a top wall substantially flush with the surface of the pavement, and said frames being mounted on their respective pavement section by vertical plates attached at longitudinal inter-vals to said frames.
4. An expansion joint as claimed in Claim 3, wherein each plate has attached thereto an anchor bar which is buried in the pavement.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000399824A CA1178098A (en) | 1982-03-30 | 1982-03-30 | Expansion joint sealing structures |
| DE19833308075 DE3308075A1 (en) | 1982-03-30 | 1983-03-08 | Expansion joint between paving sections with elastomeric seal |
| SE8301297A SE8301297L (en) | 1982-03-30 | 1983-03-10 | SEAL CONSTRUCTION FOR EXPANSION JOINT |
| BE0/210317A BE896156A (en) | 1982-03-30 | 1983-03-15 | EXPANSION JOINT TRIM |
| AU12526/83A AU1252683A (en) | 1982-03-30 | 1983-03-17 | Expansion joint seal |
| FR8304403A FR2542776A1 (en) | 1982-03-30 | 1983-03-17 | Seal for an expansion joint |
| GB08307502A GB2136842A (en) | 1982-03-30 | 1983-03-18 | Expansion joint sealing structures |
| ZA835327A ZA835327B (en) | 1982-03-30 | 1983-07-21 | Expansion joint sealing structures |
| IT22353/83A IT1164351B (en) | 1982-03-30 | 1983-07-29 | SEALING STRUCTURES FOR EXPANSION JOINTS |
Applications Claiming Priority (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000399824A CA1178098A (en) | 1982-03-30 | 1982-03-30 | Expansion joint sealing structures |
| DE19833308075 DE3308075A1 (en) | 1982-03-30 | 1983-03-08 | Expansion joint between paving sections with elastomeric seal |
| SE8301297A SE8301297L (en) | 1982-03-30 | 1983-03-10 | SEAL CONSTRUCTION FOR EXPANSION JOINT |
| BE0/210317A BE896156A (en) | 1982-03-30 | 1983-03-15 | EXPANSION JOINT TRIM |
| AU12526/83A AU1252683A (en) | 1982-03-30 | 1983-03-17 | Expansion joint seal |
| FR8304403A FR2542776A1 (en) | 1982-03-30 | 1983-03-17 | Seal for an expansion joint |
| GB08307502A GB2136842A (en) | 1982-03-30 | 1983-03-18 | Expansion joint sealing structures |
| ZA835327A ZA835327B (en) | 1982-03-30 | 1983-07-21 | Expansion joint sealing structures |
| IT22353/83A IT1164351B (en) | 1982-03-30 | 1983-07-29 | SEALING STRUCTURES FOR EXPANSION JOINTS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1178098A true CA1178098A (en) | 1984-11-20 |
Family
ID=27575591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000399824A Expired CA1178098A (en) | 1982-03-30 | 1982-03-30 | Expansion joint sealing structures |
Country Status (9)
| Country | Link |
|---|---|
| AU (1) | AU1252683A (en) |
| BE (1) | BE896156A (en) |
| CA (1) | CA1178098A (en) |
| DE (1) | DE3308075A1 (en) |
| FR (1) | FR2542776A1 (en) |
| GB (1) | GB2136842A (en) |
| IT (1) | IT1164351B (en) |
| SE (1) | SE8301297L (en) |
| ZA (1) | ZA835327B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19637915C2 (en) * | 1996-09-17 | 2001-03-01 | Alfred Hartkorn | One-button profile arrangement for a joint bridging construction |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1658612B1 (en) * | 1967-05-02 | 1970-12-03 | Maurer Friedrich Soehne | Bridging device of expansion joints in bridges or the like. |
| DE1800775C3 (en) * | 1968-10-03 | 1979-06-28 | Friedrich Maurer Soehne, 8000 Muenchen | Sealing insert for expansion joints in road pavements and method for manufacturing the sealing insert |
| US3598026A (en) * | 1969-01-31 | 1971-08-10 | Grace W R & Co | Joint-sealing apparatus |
| US3606826A (en) * | 1969-07-01 | 1971-09-21 | Acme Highway Prod | Expansion joint |
| DE2109517A1 (en) * | 1971-03-01 | 1972-09-28 | P. Schulte-Stemmerk KG für Industrie und Handel, 4100 Duisburg | Expansion joint cover and seal between parallel structures |
| US3732021A (en) * | 1971-03-08 | 1973-05-08 | Brown Co D S | Modular expansion joint |
| DE2111324C3 (en) * | 1971-03-10 | 1979-07-05 | Migua-Mitteldeutsche Gummi Und Asbestgesellschaft Hammerschmidt & Co, 5628 Heiligenhaus | Device for sealing joints between components |
| CH584314A5 (en) * | 1973-07-21 | 1977-01-31 | Kober Ag | |
| US3888599A (en) * | 1974-09-20 | 1975-06-10 | Specialties Const | Expansion joint seal |
| CH608844A5 (en) * | 1976-03-02 | 1979-01-31 | Honel Holdings Ag | Device for spanning and sealing expansion joints in carriageways |
| US4290713A (en) * | 1979-09-19 | 1981-09-22 | The D. S. Brown Company | Expansion joint sealing structures |
| US4367976A (en) * | 1980-06-30 | 1983-01-11 | Bowman Construction Supply, Inc. | Expansion joint sealing strip assembly for roadways, bridges and the like |
-
1982
- 1982-03-30 CA CA000399824A patent/CA1178098A/en not_active Expired
-
1983
- 1983-03-08 DE DE19833308075 patent/DE3308075A1/en not_active Withdrawn
- 1983-03-10 SE SE8301297A patent/SE8301297L/en not_active Application Discontinuation
- 1983-03-15 BE BE0/210317A patent/BE896156A/en not_active IP Right Cessation
- 1983-03-17 FR FR8304403A patent/FR2542776A1/en not_active Withdrawn
- 1983-03-17 AU AU12526/83A patent/AU1252683A/en not_active Abandoned
- 1983-03-18 GB GB08307502A patent/GB2136842A/en not_active Withdrawn
- 1983-07-21 ZA ZA835327A patent/ZA835327B/en unknown
- 1983-07-29 IT IT22353/83A patent/IT1164351B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| FR2542776A1 (en) | 1984-09-21 |
| ZA835327B (en) | 1984-09-26 |
| IT1164351B (en) | 1987-04-08 |
| IT8322353A0 (en) | 1983-07-29 |
| BE896156A (en) | 1983-09-15 |
| SE8301297D0 (en) | 1983-03-10 |
| DE3308075A1 (en) | 1984-09-13 |
| AU1252683A (en) | 1984-09-20 |
| GB8307502D0 (en) | 1983-04-27 |
| GB2136842A (en) | 1984-09-26 |
| SE8301297L (en) | 1984-09-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEC | Expiry (correction) | ||
| MKEX | Expiry | ||
| MKEX | Expiry |
Effective date: 20020330 |