CN214783020U - Concrete road surface expansion joint structure - Google Patents
Concrete road surface expansion joint structure Download PDFInfo
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- CN214783020U CN214783020U CN202121189574.XU CN202121189574U CN214783020U CN 214783020 U CN214783020 U CN 214783020U CN 202121189574 U CN202121189574 U CN 202121189574U CN 214783020 U CN214783020 U CN 214783020U
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Abstract
The application relates to the technical field of expansion joints, in particular to a concrete pavement expansion joint structure, which comprises a concrete pavement I, a concrete pavement II, a sleeve part, a force transmission rod piece, a positioning table and a supporting part, an expansion joint is arranged between the first concrete pavement and the second concrete pavement, the sleeve part is embedded in the first concrete pavement, one end of the force transmission rod piece is connected with the inner wall of the sleeve piece in a sliding manner, the other end of the force transmission rod piece sequentially penetrates through the first concrete pavement, the expansion joint and the second concrete pavement in a sliding manner, the top of the positioning table is respectively embedded in the first concrete pavement and the second concrete pavement, the bottoms of the supporting pieces are respectively embedded in the two positioning tables, the tops of the supporting pieces are respectively embedded in the first concrete pavement and the second concrete pavement, and the supporting piece is respectively detachably connected with the sleeve piece and a force transmission rod piece positioned in the second concrete pavement. This application has the effect that improves power member stability.
Description
Technical Field
The utility model belongs to the technical field of the technique of expansion joint and specifically relates to a concrete road surface expansion joint structure is related to.
Background
The expansion joint is a structural joint provided at an appropriate position along the direction of a construction joint of a building or a structure in order to prevent the structure from cracking or breaking due to a change in the temperature of the building (thermal expansion or contraction).
In road engineering, the arrangement of pavement joints is a method for solving the problem of pavement deformation. The pavement joint mainly comprises a longitudinal joint and a transverse joint, wherein the longitudinal joint is a joint parallel to the length direction of a road and is generally provided with a dowel bar; the transverse seam is a seam perpendicular to the length direction of the road, and is divided into a contraction seam and an expansion seam.
The contraction joint is set for meeting the requirement of road contraction deformation, is not provided with a pull rod and is formed by cutting with a cutting machine. The expansion joint is arranged for the concrete in the road to deform due to temperature, and a sliding dowel bar is usually arranged.
With respect to the related art, the inventors consider that: in the actual work progress, after the slip dowel steel is installed, the concrete road section begins to be poured, the slip dowel steel is easy to incline or displace under the action of external force generated when concrete is poured, and the working performance of the slip dowel steel is reduced to cause cracks on the road surface.
SUMMERY OF THE UTILITY MODEL
In order to improve the stability of slip dowel steel, and then improve the working property of slip dowel steel to reduce the production of road surface crack, this application provides a concrete road surface expansion joint structure.
The application provides a concrete road surface expansion joint structure adopts following technical scheme:
a concrete pavement expansion joint structure comprises a first concrete pavement, a second concrete pavement, a telescopic assembly and a fixing assembly, wherein an expansion joint is arranged between the first concrete pavement and the second concrete pavement, the telescopic assembly comprises a sleeve part and a force transmission rod part, the sleeve part is embedded in the first concrete pavement, one end of the force transmission rod part is connected to the inner wall of the sleeve part in a sliding mode, the other end of the force transmission rod part penetrates through the expansion joint after sliding out of the first concrete pavement, and one end of the force transmission rod part penetrating through the expansion joint is embedded in the second concrete pavement;
the fixed subassembly includes location platform and support piece, the location platform has two, the location bench top is buried underground in concrete road one and concrete road two respectively, the location platform bottom is used for burying underground respectively, the support piece bottom is buried underground in two location platforms respectively, the support piece top is buried underground in concrete road one and concrete road two respectively, just support piece can dismantle respectively and connect in the cover barrel spare and be located the biography power member piece of concrete road two.
By adopting the technical scheme, firstly, two positioning tables and two groups of supporting pieces are positioned and constructed; secondly, synchronously constructing the erection of the reinforcement cage of the concrete pavement I, the erection of the reinforcement cage of the concrete pavement II and the installation of the telescopic component and the fixed component; and finally, sequentially pouring a first concrete pavement layer by layer and a second concrete pavement layer by layer. The first concrete pavement and the second concrete pavement can be used after the structural strength is stable, and under the action of the environmental temperature difference, the interior of the first concrete pavement and the interior of the second concrete pavement can be subjected to stress contraction or stress expansion. At the moment, one end of the force transmission rod piece and the concrete pavement are in a state of sliding relatively, the other end of the force transmission rod piece and the concrete pavement are in a fixed connection state, the concrete pavement I and the concrete pavement can be displaced relatively, and pavement cracking caused by internal stress contraction or stress expansion is avoided, so that the scheme has the advantage of reducing pavement cracks.
Optionally, the support member includes two support rods, the force transmission rod member includes a slide rod, one end of the slide rod, which is located in the second concrete pavement, is threaded through the upper portion of one support rod, and the lower portion of one support rod is located in the corresponding positioning table.
Through adopting above-mentioned technical scheme, one of them bracing piece lower part is buried underground in the location platform, and when the installation slide bar, with the screw hole on one of them bracing piece of slide bar one end screw in, and then the one end of fixed slide bar, and can rotate the adjustment slide bar to the installation of the adaptation slide bar other end.
Optionally, the sleeve part includes a sleeve portion and a head portion, the head portion is welded to the sleeve portion, the outer wall of the sleeve portion is threaded through the upper portion of another support rod, the lower portion of another support rod is located in a corresponding positioning table, the end portion of the slide rod is provided with a slide block, the inner wall of the sleeve portion is provided with a slide notch, and the slide block is slidably located in the slide notch.
Through adopting above-mentioned technical scheme, another bracing piece lower part is buried underground in the location platform, with the screw hole on another bracing piece of bushing part outer wall screw in, and then fixed another bracing piece and bushing part, then adjusts the slide bar tip for in the slider slided into the annular, later seal the opening of bushing part with end portion welding, thereby accomplish the installation of cover barrel spare.
Optionally, an elastic part is arranged in the sliding gap, and the sliding block touches the elastic part.
Through adopting above-mentioned technical scheme, when the slide bar slided for concrete pavement, the slider also slided thereupon in the breach that slides, sets up the elastic component in the breach that slides, and then makes the slider be difficult to rigidity collision sleeve pipe inner wall to be difficult to cause sleeve pipe and concrete pavement to separate because of the rigidity collision.
Optionally, the sliding rod peripheral wall sleeve is provided with a rubber sleeve, the outer wall of the rubber sleeve is in interference fit with the inner wall of the sleeve part, one end of the rubber sleeve is connected to the sleeve part in an abutting mode, and the other end of the rubber sleeve penetrates out of the first concrete pavement.
By adopting the technical scheme, the sliding rod can move relative to the concrete pavement, so that the rubber sleeve is sleeved on the peripheral wall of the sliding rod, when the concrete pavement is poured, concrete can not be adhered to the peripheral wall of the sliding rod, and the peripheral wall of the sliding rod can be relatively displaced along the axial direction of the rubber sleeve.
Optionally, the peripheral wall of the supporting rod is provided with a reinforcing rib, and the bottom of the reinforcing rib is embedded in the positioning table.
Through adopting above-mentioned technical scheme, the relation between bracing piece and the location platform is further strengthened to the stiffening rib for the stability of bracing piece can improve.
Optionally, the expansion joint bottom is equipped with the concrete backing plate, the embedded block rubber that is equipped with of expansion joint, block rubber bottom butt is connected in the concrete backing plate, the block rubber is worn to locate by the slide bar butt, just the block rubber top is less than a concrete road surface top.
By adopting the technical scheme, the concrete cushion plate can separate the moisture in the separation road bed from evaporating into the expansion joint, so that the environment in the expansion joint is in a dry and stable state, and the rubber block is a flexible block and can buffer the relative motion between the first concrete pavement and the second concrete pavement.
Optionally, a gap filling layer is arranged between the first concrete pavement, the second concrete pavement and the top of the rubber block.
Through adopting above-mentioned technical scheme, the layer of caulking is in order to reduce the rainwater on road surface and to escaping in the expansion joint for the inside environment of expansion joint is in dry stable state, and the slide bar also can be because of the stable internal environment of expansion joint and increase of service life.
In summary, the present application includes at least one of the following beneficial technical effects:
1. one end of the force transmission rod piece and the first concrete pavement are in a state of relative sliding, the other end of the force transmission rod piece and the second concrete pavement are in a fixed connection state, and the first concrete pavement and the second concrete pavement can be in relative displacement;
2. the sliding block can slide in the sliding notch, and the elastic piece in the sliding notch can weaken the rigidity damage caused by sliding of the sliding block;
3. the rubber blocks are flexible blocks and can buffer relative movement between the first concrete pavement and the second concrete pavement.
Drawings
FIG. 1 is a schematic top view of an embodiment of the present application;
FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is an enlarged schematic view of the structure of FIG. 2 taken along line B;
fig. 4 is an enlarged schematic view of the structure of fig. 3 at line C.
Description of reference numerals: 1. a first concrete pavement; 2. a second concrete pavement; 3. expanding the seam; 31. a concrete pad; 4. a sleeve member; 41. a sleeve portion; 42. an end portion; 43. a sliding notch; 5. a force transfer bar; 51. a slide bar; 52. a slider; 6. an elastic member; 61. a rubber sleeve; 62. an elastic block; 7. a positioning table; 8. a support member; 81. a support bar; 82. reinforcing ribs; 9. a rubber block; 10. and (6) a gap filling layer.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses concrete pavement expansion joint structure, refer to fig. 1, fig. 2, it includes concrete pavement one 1, concrete pavement two 2, flexible subassembly, fixed subassembly and buffering subassembly, concrete pavement one 1 and concrete pavement two 2 relative interval arrangement, and leave between concrete pavement one 1 and the concrete pavement two 2 and be equipped with expansion joint 3, the length of expansion joint 3 and the width of concrete pavement one 1, perhaps the length of expansion joint 3 is unanimous with the length of concrete pavement two 2.
Referring to fig. 2 and 3, the telescopic assemblies are respectively embedded in the first concrete pavement 1 and the second concrete pavement 2, when the telescopic assemblies are actually installed, two ends of each telescopic assembly are fixed through the fixing assemblies, and then the first concrete pavement 1 and the second concrete pavement 2 are poured. When the telescopic component is installed, the buffer component is installed in the expansion joint 3, one end of the telescopic component in the first concrete pavement 1 can be relatively displaced with respect to the other end in the second concrete pavement 2, when the first concrete pavement 1 or the second concrete pavement 2 is subjected to stress contraction or expansion, a horizontal action is generated by stress contraction or expansion, and under the action of the telescopic component, a complete force transmission system can be formed when the first concrete pavement 1 and the second concrete pavement 2 move relatively.
The bottoms of the first concrete pavement 1 and the second concrete pavement 2 are respectively embedded with a positioning platform 7, and the positioning platforms 7 are arranged along the width direction of the first concrete pavement 1 or the second concrete pavement 2.
The positioning table 7 is formed by pouring concrete, the bottom of the positioning table 7, which is far away from the first concrete pavement 1 or the second concrete pavement 2, is embedded in the roadbed, and the lower surface of the positioning table 7 is lower than the first concrete pavement 1 or the second concrete pavement 2. A concrete cushion plate 31 is embedded at the bottom of the expansion joint 3, the top of the concrete cushion plate 31 is fixedly connected to the lower surface of the first concrete pavement 1 and the lower surface of the second concrete pavement 2 respectively, the bottom of the concrete cushion plate 31 is embedded in the road bed, and at the moment, the lower surface of the concrete cushion plate 31 is lower than the lower surface of the positioning table 7. Meanwhile, the concrete pads 31 are fixedly connected to opposite sides of the two positioning tables 7, respectively. Because the concrete member performance of expansion joint 3 department is weak, set up location platform 7 and concrete backing plate 31, and then strengthen the structural performance of expansion joint 3 department concrete member. Meanwhile, the positioning table 7 can facilitate positioning and installation of the fixing component.
The fixing assemblies are arranged in a plurality of groups, and the fixing assemblies are sequentially and uniformly arranged at intervals along the width direction of the first concrete pavement 1 or the second concrete pavement 2. Each fixed component comprises two sets of supporting pieces 8, each supporting piece 8 comprises two supporting rods 81, and the bottoms of the two supporting rods 81 are embedded in the corresponding positioning tables 7 respectively. Each fixing component also comprises a plurality of reinforcing ribs 82, each reinforcing rib 82 is triangular, each reinforcing rib 82 is fixedly connected to the peripheral wall of the corresponding supporting rod 81, and the bottom of the right-angle side of each reinforcing rib 82 is embedded in the corresponding positioning table 7.
The telescopic assemblies are provided with a plurality of groups, the groups of telescopic assemblies correspond to the corresponding fixed assemblies and are uniformly arranged at intervals along the width direction of the concrete pavement I1 or the concrete pavement II 2. And each telescopic assembly comprises a sleeve member 4, a force transmission rod member 5 and an elastic member 6, wherein the force transmission rod member 5 comprises a sliding rod 51, and the elastic member 6 comprises a rubber sleeve 61.
The sleeve member 4 comprises a sleeve portion 41 and a head portion 42, the head portion 42 is welded to the end wall of the sleeve portion 41, and the sleeve portion 41 is located in the first concrete pavement 1. A threaded hole is horizontally formed in the support rod 81 positioned in the first concrete pavement 1, and the outer wall of the sleeve part 41 is threaded through the inner wall of the threaded hole. Meanwhile, the inner top wall and the inner bottom wall of the sleeve portion 41 are respectively provided with a sliding notch 43 along the axial direction of the sleeve portion 41, and the sliding notches 43 respectively extend from the joint of the sleeve portion 41 and the end portion 42 to the sleeve portion 41.
Referring to fig. 3 and 4, one end of the sliding rod 51 is fixedly connected to the sliding notches 43 respectively, the two sliding blocks 52 are slidably connected to the corresponding sliding notches 43 respectively, and a peripheral wall of one end of the sliding rod 51 slidably contacts an inner wall of the sleeve portion 41. The other end of the sliding rod 51 penetrates through the expansion joint 3 after sliding out of the first concrete pavement 1, and the sliding rod 51 penetrating through the expansion joint 3 is connected with a supporting rod 81 positioned in the second concrete pavement 2 in a threaded mode.
The inner wall of the rubber sleeve 61 is sleeved on the peripheral wall of the sliding rod 51, the outer wall of the rubber sleeve 61 is adhered to the first concrete pavement 1, one end of the rubber sleeve 61 is connected to one end, away from the end head 42, of the sleeve part 41 in an abutting mode, and the other end of the rubber sleeve 61 is flush with one side, facing the expansion joint 3, of the first concrete pavement 1. Because the slide rod 51 needs to slide, when the concrete of the first concrete pavement 1 is poured, the slide rod 51 is not easily fixedly connected with the concrete through the rubber sleeve 61, the rubber sleeve 61 can be used for sliding the slide rod 51, and the rubber sleeve 61 can stably transmit the horizontal load received by the slide rod 51 to the first concrete pavement 1.
The elastic member 6 further comprises four sets of elastic blocks 62, wherein two sets of elastic blocks 62 are located in the sliding notch 43 at the higher position, and wherein two sets of elastic blocks 62 are horizontally arranged at intervals; the other two sets of elastic blocks 62 are located in the lower sliding notches 43, and the other two sets of elastic blocks 62 are horizontally spaced. The sliding blocks 52 are respectively connected to opposite sides of the two sets of corresponding elastic blocks 62 in an abutting mode, and the opposite sides of the two sets of elastic blocks 62 are respectively connected to the inner wall of the sliding gap 43 in an abutting mode, so that the elastic blocks 62 can weaken the rigid collision between the sliding blocks 52 and the inner wall of the sliding gap 43, and further the sleeve part 4 is separated from the concrete pavement 1.
Referring to fig. 2, the buffer assembly comprises a rubber block 9 and a gap filling layer 10, wherein the rubber block 9 is filled in the expansion joint 3, and the rubber block 9 is tightly connected to the opposite side walls of the first concrete pavement 1 and the second concrete pavement 2 respectively. The bottom of the rubber block 9 is placed on top of the concrete pad 31, and the top of the rubber block 9 is lower than the first concrete pavement 1 or lower than the second concrete pavement 2. The joint filling layer 10 is positioned at the top of the rubber block 9, the joint filling layer 10 is fixedly filled between the first concrete pavement 1 and the second concrete pavement 2, and the top of the joint filling layer 10 is flush with the first concrete pavement 1. The joint filling layer 10 is asphalt filler, and the asphalt has the functions of flexibility, water resistance and the like and is suitable for filling the expansion joint 3. Meanwhile, the sliding rod 51 penetrates through the rubber block 9 in a sliding mode, the rubber block 9 can transmit horizontal load of the sliding rod 51, and the rubber block 9 cannot influence horizontal displacement of the sliding rod 51.
The implementation principle of the embodiment of the application is as follows:
firstly, cast-in-place construction is carried out on two positioning tables 7 and a concrete cushion plate 31, the support rods 81, the reinforcing ribs 82 and the positioning tables 7 are integrally cast-in-place construction, and the rubber blocks 9 are placed on the top of the concrete cushion plate 31;
step two, threading corresponding connecting rods on the outer wall of the sleeve part 41 in sequence, then sequentially installing a slide rod 51, a rubber sleeve 61 and an elastic block 62, and then sequentially welding the end head part 42 to close the port of the sleeve part 41;
step three, a first concrete pavement 1 and a second concrete pavement 2 are poured in a layered mode, and the rubber blocks 9 can serve as templates;
and finally, filling the joint filling layer 10 when the structural strength of the first concrete pavement 1 and the second concrete pavement 2 is stable.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a concrete road surface expansion joint structure which characterized in that: the expansion joint comprises a first concrete pavement (1), a second concrete pavement (2), a telescopic assembly and a fixing assembly, wherein an expansion joint (3) is arranged between the first concrete pavement (1) and the second concrete pavement (2), the telescopic assembly comprises a sleeve part (4) and a force transmission rod piece (5), the sleeve part (4) is embedded in the first concrete pavement (1), one end of the force transmission rod piece (5) is connected to the inner wall of the sleeve part (4) in a sliding manner, the other end of the force transmission rod piece (5) penetrates through the expansion joint (3) after sliding out of the first concrete pavement (1), and one end of the force transmission rod piece (5) penetrating through the expansion joint (3) is embedded in the second concrete pavement (2);
fixed subassembly is including location platform (7) and support piece (8), location platform (7) have two, location platform (7) top is buried underground in concrete road surface one (1) and concrete road surface two (2) respectively, location platform (7) bottom is used for burying underground respectively, support piece (8) bottom is buried underground in two location platforms (7) respectively, support piece (8) top is buried underground in concrete road surface one (1) and concrete road surface two (2) respectively, just support piece (8) can be dismantled respectively and connect in cover barrel spare (4) and be located the biography power member piece (5) of concrete road surface two (2).
2. The concrete pavement expansion joint structure of claim 1, wherein: the support piece (8) comprises two support rods (81), the force transmission rod piece (5) comprises a sliding rod (51), one end of the sliding rod (51) positioned in the second concrete pavement (2) is threaded through one support rod (81), and the lower part of the support rod (81) is positioned in the corresponding positioning table (7).
3. The concrete pavement expansion joint structure of claim 2, wherein: the sleeve part (4) comprises a sleeve part (41) and a head part (42), the head part (42) is connected to the sleeve part (41) in a welding mode, the outer wall of the sleeve part (41) is threaded to penetrate through the upper portion of another supporting rod (81), the lower portion of the other supporting rod (81) is located in a corresponding positioning table (7), a sliding block (52) is arranged at the end portion of the sliding rod (51), a sliding notch (43) is formed in the inner wall of the sleeve part (41), and the sliding block (52) is arranged in the sliding notch (43) in a sliding mode.
4. A concrete pavement expansion joint structure according to claim 3, wherein: an elastic part (6) is arranged in the sliding notch (43), and the sliding block (52) touches the elastic part (6).
5. The concrete pavement expansion joint structure of claim 4, wherein: slide bar (51) perisporium cover is equipped with rubber sleeve (61), rubber sleeve (61) outer wall interference fit cover barrel spare (4) inner wall, rubber sleeve (61) one end butt is connected in cover barrel spare (4), concrete pavement one (1) is worn out to rubber sleeve (61) other end.
6. The concrete pavement expansion joint structure of claim 2, wherein: reinforcing ribs (82) are arranged on the peripheral wall of the supporting rod (81), and the bottoms of the reinforcing ribs (82) are embedded in the positioning table (7).
7. The concrete pavement expansion joint structure of claim 2, wherein: expand seam (3) bottom and be equipped with concrete backing plate (31), the embedded block rubber (9) that is equipped with of seam (3) expands, block rubber (9) bottom butt is connected in concrete backing plate (31), block rubber (9) are worn to locate by slide bar (51) butt, just block rubber (9) top is less than concrete road surface one (1) top.
8. The concrete pavement expansion joint structure of claim 7, wherein: and a joint filling layer (10) is arranged among the first concrete pavement (1), the second concrete pavement (2) and the top of the rubber block (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121189574.XU CN214783020U (en) | 2021-05-31 | 2021-05-31 | Concrete road surface expansion joint structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121189574.XU CN214783020U (en) | 2021-05-31 | 2021-05-31 | Concrete road surface expansion joint structure |
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| CN214783020U true CN214783020U (en) | 2021-11-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114737436A (en) * | 2022-04-02 | 2022-07-12 | 中能建路桥工程有限公司 | Treatment method for cement concrete pavement cracks |
| CN115434208A (en) * | 2022-08-19 | 2022-12-06 | 浙江省一建建设集团有限公司 | Pile-free automobile ramp bottom plate deformation joint reinforcing device |
-
2021
- 2021-05-31 CN CN202121189574.XU patent/CN214783020U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114737436A (en) * | 2022-04-02 | 2022-07-12 | 中能建路桥工程有限公司 | Treatment method for cement concrete pavement cracks |
| CN115434208A (en) * | 2022-08-19 | 2022-12-06 | 浙江省一建建设集团有限公司 | Pile-free automobile ramp bottom plate deformation joint reinforcing device |
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