JPS6049722B2 - Construction method for road joint pavement - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a construction method for paving road joints on elevated roads, bridges, etc.

Conventionally, steel finger joints, rubber joints, etc. have been constructed at road joints, but there is a gap between the joint members and the concrete parts to which the joint members are fixed are exposed to the road surface. Therefore, in many cases, the construction is not carried out as joint pavement.

Therefore, when constructing a joint, a pair of joint members are hung at the same height using horizontal rods, etc., and connected to anchor bolts, etc., and then post-cast concrete is placed under and behind the joint members. However, the construction is complicated because it requires large machinery such as a concrete mixer and concrete compactor, and it is also necessary to install a weir to prevent the poured concrete from leaking into the gap. Therefore, it is difficult to carry out accurate construction unless it is done by a skilled person, and it takes a lot of time to do so.For example, when replacing a damaged joint with a new one, there is the problem of having to stop traffic for a long time. It was hot. Furthermore, as mentioned above, the joint members and concrete parts of the installed joints are exposed to the road surface, creating a boundary with different materials from the asphalt pavement, causing ruts.
Differences in the degree of abrasion of the road surface due to bumps and the like create a step at the boundary, which impairs vehicle drivability and causes strong vibrations, low-frequency vibrations and noise at road joints.
In addition, there is a so-called blind/joint joint in which pavement is applied continuously at road joints, but there are problems in that the pavement tends to cave in and crack in a short period of time due to expansion and contraction of the road, resulting in damage. .

In view of this, the present invention has been developed by manufacturing a paving member whose upper layer is made of the same material as road pavement in advance at a place other than the construction site, such as a factory, and transporting the paving member to the construction site to form a road joint. An object of the present invention is to provide a construction method for road joint paving in which joint paving is achieved by constructing a bridge between the ends of opposing deck slabs with a clearance, and to solve the above-mentioned conventional problems.

That is, the first invention uses a series of paving material layers made of the same material as road pavement in the upper layer and separated left and right with a gap in the lower layer at a place other than a construction site such as a factory. Producing a paving member by providing a pair of supporting members and connecting the paving material layer and the supporting member with a connecting means fixed to the supporting member, transporting the paving member to a construction site, and carrying out the construction. There is a construction method for paving a road joint area, which is characterized in that the pavement members are bridged to the opposite ends of the deck slabs with a gap in the road joint part at the site, and the supporting members are connected to the deck slabs or girders, Since the above-mentioned pavement members are equipped with a paving material layer and bearing members, the bearing members can be connected to the slabs and girders at the construction site without using large machines such as large concrete mixers or paving compaction rollers for joint construction. Just doing this will complete the basic construction, making it easier and faster to complete the construction.

The second invention is such that a bridge board is spanned between the pair of supporting members of the lower layer in the first invention to cover the gap between the two supporting members, and this prevents the paving material layer from sinking and also covers the gap between the two supporting members. This can prevent cracks from forming in the paving material layer.

The third invention specifies the supporting member in the first invention as a horizontal substrate, and when constructing the pavement member at the construction site, a base having flanges provided on the top and bottom of the web is used, and this base is made of steel. It is fixed to the end of the girder and connects the horizontal substrate of the paving member to the base, and while reinforcing the bridge end with the base,
Paving members can be firmly installed.

In addition to the structure of the third invention, the fourth invention is such that the gap between the horizontal boards is covered with a bridge board, and similarly to the second invention, the paving material layer is not depressed or the gap is caused to occur on the gap. It is possible to prevent the occurrence of cracks.

Embodiments of the present invention will be described below with reference to the drawings. Ru. (
Example 1) This example is shown in Figs. 1 to 5, and 1 is a prefabricated paving member for road joints, with a paving material layer 2 in the upper layer and a gap 5 in the lower layer on the left and right sides. a separated pair of bearing members 3;
3 are respectively provided, and the paving material layer 2 and the supporting members 3, 3 are connected by a connecting means 6 fixed to the supporting members.

The support member 3 is a flat plate-like horizontal board, and long holes 7 for anchor bolt attachment are opened at intervals in the road width direction, and the end faces 8 facing each other with a gap 5 are corrugated and the top of the gap is corrugated. It is covered with a bridge board 10. Further, the paving material layer 2 is provided with a large-diameter long hole 11 for attaching a nut, which has the same center as the long hole 7 for attaching the anchor bolt. The coupling means 6 includes a coupling protrusion 12 projecting from the upper surface of the support member 3;
It consists of a connecting line 13 fixed on the upper part of the connecting protrusion, and the connecting line 13 connects the connecting protrusions. The paving member 1 is manufactured at a place other than the road construction site, for example, in a factory, and as shown in FIG.
2 and connecting bars 13 are attached, plugs 14 are fitted into the long holes 7 for attaching anchor bolts, and a pair of supporting members 3, 3 are arranged side by side with a gap 5 between them. Bridge board 10
is constructed to cover the gap 5, a template 15 is arranged around both the supporting members 3, and the paving material is cast.

As the support member 3, a rigid plate such as a steel plate, a concrete plate, a synthetic resin plate, or a fiber-reinforced plastic plate is used.

Further, as the coupling means 6, the coupling protrusion 12 may be used alone. In addition to the L-shaped coupling protrusion 12 as in this example, a straight bar-shaped coupling protrusion 12 or a bolt with a head may also be used. The coupling protrusion 12 can be fixed by bending the lower end into an L-shape and welding it to the support member 3, by opening a mounting hole in the support member 3, inserting the lower end of the coupling protrusion 12, and welding it. A method may be adopted in which a screw hole is provided in the support member 3 and the coupling protrusion 12 is screwed therein. Note that the reinforcing bars provided in the road width direction, such as the connecting bars 13, are used as the supporting members 3.
It may also be used as a coupling means by directly fixing it to the upper surface of the. Bridge board 1
0 may be simply placed on the ends of both supporting members 3, 3, but in this example, one end of the bridge plate is fixed on one of the supporting members 3 in order to increase the mounting stability. Prevented from falling off.

Paving material layer 2 is a paving material that has the same degree of wear as general road pavement, such as asphalt paving material, goose asphalt paving material, etc. When using goose asphalt paving material, it is necessary to apply compaction after placing it. Not needed. Note that the end surface 8 of the support member 3 may be linear, and the paving material layer 2 may be formed of other paving materials such as cement concrete resin mortar or resin concrete.

The paving member 1 manufactured as described above is transported from a factory or the like to a construction site.

During transportation, a protection plate is brought into contact with the upper or lower surface of the paving member 1 to prevent damage to the paving member 1. At the construction site, first, the floor slab 1 facing the road joint with the gap 16
The upper surfaces of the end portions 7 and 17 are chipped to form step portions 18 and 18 with a depth of 1 to 2 G, and anchor bolt embedding holes 20 are drilled in the step portions at intervals in the road width direction. Next, the setters 21, 21 having a U-shaped cross section are suspended using the horizontal rods 22, and the anchor bolts 23 are inserted into the anchor bolt positioning holes provided in the setters 21 and suspended, and the roots of the anchor bolts 23 are suspended. is inserted into the embedding hole 20, and an anchor bolt fixing material 2 such as synthetic resin or concrete is inserted into the embedding hole.
Fill to 4. Subsequently, the filling hole 25 of the setter 21 is filled with a foundation leveling material 26 such as synthetic resin, and the stepped portion 18 is filled with a foundation leveling material 26 such as synthetic resin.
The setter 21 is applied to the upper surface of the anchor bolt 23 to form a flat mounting surface 27, and the setter 21 is removed from the anchor bolt 23. After that, a rubber or cloth mat 2 is placed on the mounting surfaces 27, 27.
8 is laid, the paving member 1 is bridged over the mat, and the paving member is fixed by applying nuts 30 to the anchor bolts 23. Thereafter, a filler 32 such as a pitch or a sealing material is injected into the gap between the paving member 1 and the road pavement 31 and into the long hole 11 for attaching a nut, and grooves 33 are made in the paving material layer 2 as necessary. The cut grooves 33 are provided when there is a possibility that cracks may occur in the paving material layer 2, and may be provided at the stage of manufacturing the paving member 1 in a factory or the like. Further, the cut groove 33 may be filled with a pitch, a sealing material, or the like. In addition, since there is a possibility that cracks or the like may occur in the floor slab 17 when drilling the anchor bolt embedding holes 20, a reinforcing plate 34 may be attached to the end face of the floor slab in advance.

In this example, the paving member 1 is manufactured in a factory, etc., transported to the construction site, and simply bridged over the road joint to pave the joint. Construction is extremely simple as it does not require large machines such as compaction rollers, and accurate construction can be carried out in an extremely short time of about one hour without the need for skilled workers. Alternatively, there is no need to wait for the paving material to harden, allowing vehicles to pass immediately.

In addition, in the above structure, the paving material layer 2 and the road pavement 31
and are made of the same material, and the wear of the road surface due to rutting and the like occurs uniformly, so that good vehicle running performance is maintained for a long period of time, and the paving material layer 2 is connected to the connecting means 6 and the supporting member 3. Therefore, even if the bridge receives bumps in the bridge length direction due to vehicle running, it will not slip and bulge will be prevented, and even if cracks occur, it will not break and pop out.

Furthermore, cracks in the paving material layer 2 can be easily repaired by filling with tar, etc., and even if the damage is severe, the repair can be completed in a short time by removing the damaged part and resurfacing. I can do it. Furthermore, since the paving member 1 is only fixed with anchor bolts 23, it is easy to replace when it is damaged. Furthermore, the paving material layer 2 is the bridge board 1
0 prevents it from sinking into the gap 5, and since the end faces of the bearing member 3 are corrugated and engaged, the wheel load of the vehicle is distributed between the two bearing members 3, 3, so the durability of the paving member 1 is improved. good. During construction, a notch step 51 is formed at the end of the floor slab 17 as shown in FIG. In some cases, concrete 53 is poured, anchor bolts 52 are buried, and the paving member 1 is attached to the anchor bolts.

(Example 2) This example is shown in FIG. 6, and differs from Example 1 in the method of fixing the paving member 11.

That is, the paving member 1 is transported from a factory or the like to a construction site.

At the construction site, first, the lower flange 37 of the base 38, which has a U-shaped cross section and is formed by providing an upper flange 36 and a lower flange 37 on the upper and lower sides of the web 35, is fixed to the upper surface of the end of the steel girder 40 with bolts. After that, the paving member 1 is attached to the base 3.
8, 38, and the upper flange 36 of the base 38 and the support member 3 are connected with bolts. The floor slab 17 is formed by a method in which the floor slab 17 is poured after the base 38 is fixed, or by a method in which the floor slab 17 is stopped in advance at the chain line position and concrete is poured on the back of the base after the base is fixed.

Further, in this example, the upper surface of the paving member 1 was placed at a lower position than the road surface, and the surface paving 41 was applied continuously to the road paving 31 on the paving member 1. In the construction method of this example, by attaching the paving member 1 to the base 38, it becomes unnecessary to drill the anchor bolt embedding holes 20 and attach the reinforcing plate 34, etc. described in Example 1, and the surface paving 41 By applying
Since the height adjustment of the paving member 1 is no longer necessary, the construction is further simplified, and the joint pavement is made thicker by the surface pavement 41 and the paving material layer 2, and the base 38 is used to close the end of the slab. Combined with this reinforcement, the load-bearing strength of road joints increases and cracks in the pavement are also suppressed.

In this example, after fixing the base 38 to the steel girder 40, the paving member 1 was attached to the base. However, the paving member 1 and the base 38 were fixed in advance, and then the base 38 was attached. A method of fixing to the steel girder 40 can also be adopted.

(Example 3) This example is shown in FIGS. 7 and 8, and differs from Example 1 in the support member.

That is, the supporting member is a base 38 having an upper flange 36 and a lower flange 37 provided above and below the web 35,
An end surface 39 of the upper flange 36 is formed into a straight line.

The other structure of the paving member 42 is the same as that of the first embodiment. During construction, the paving member 42 is attached to the road joint by fixing the base 38 to a steel girder. In this example, by using the base 38 as a support member, drilling etc. of the anchor bolt embedding hole 20 is not required as in Example 2, simplifying the construction and increasing the load-bearing strength of the road joint. improves.

Note that the horizontal substrate serving as the supporting member in Examples 1 and 2, and the upper flange 36 of the base 38 in Example 3, have waveform or straight end surfaces, but the end surfaces may be comb-shaped and interlocked. It's okay. Furthermore, in each of the above embodiments, except for the example shown in FIG. In all other cases, a bridge plate is installed on the supporting member, but if the load-bearing strength and crack resistance are increased by means such as increasing the thickness of the paving material layer, the bridge plate may not be provided. Further, each of the above embodiments is applied to a road bridge in which the deck slab 17 is provided on the steel girder 40, but it is also applicable to other types of road bridges such as prestressed concrete girder bridges and reinforced concrete girder bridges. can do.

As described above, according to the present invention, paving members manufactured in a factory or the like are attached to road joints in a bridge-like manner to pave the joints, which simplifies construction and is extremely quick and does not require the work of skilled workers. The construction can be completed in a short period of time, and since the road joint pavement and the road pavement on both sides can be made of the same paving material, the wear of the road surface due to rutting etc. will be uniform, and Since the paving material layer is prevented from swelling by the bonding means, an excellent effect is obtained in that good vehicle running properties are maintained for a long period of time.

Further, according to the second aspect of the invention, in which a bridge board is provided, the pavement material is prevented from sinking into the gap between the supporting members, and the generation of cracks on the gap is also prevented, thereby improving durability. In addition, in the third invention that uses a base, it is possible to firmly attach the paving members while reinforcing the bridge end, and in addition, in the fourth invention that provides a bridge plate, it is possible to prevent the paving material from sinking and It is possible to prevent cracks from forming at road joints and improve the durability of road joints.

[Brief explanation of the drawing]

The drawings illustrate embodiments of the present invention, and FIGS. 1 to 5 relate to Embodiment 1. FIG. 1 is a perspective view showing a pavement member in cross section in the bridge length direction with a part cut away, and FIG. A cross-sectional view showing an example of a member manufacturing method, Fig. 3 is a perspective view showing a state in which anchor bolts are buried in a cross-section in the bridge length direction, and Fig. 4 is a cross-sectional view in the bridge length direction of the road joint showing the state after construction is completed. , FIG. 5 is a sectional view in the bridge length direction of a road joint showing another construction example, FIG. 6 is a diagram similar to FIG. 4 in Embodiment 2, and FIG. 7 is similar to FIG. 4 in Embodiment 3. and FIG. 8 are partially cutaway plan views showing the road joint portion of the third embodiment. 1, 42... Paving member, 2... Paving material layer, 3... Supporting member, 5... Gap, 6...
...Connecting means, 7...Elongated hole for anchor bolt attachment, 8...End face, 10...Bridge board, 1
1...Elongated hole for nut attachment, 12...Connection protrusion, 13...Connection line, 14...Plug, 15.
...template, 16...play space, 17...
Floor slab, 18...Step, 20...Anchor bolt embedding hole, 21.Setter, 22...Horizontal rod, 23
...Anchor bolt, 24...Anchor bolt fixing material, 25...Filling hole, 26...
...Foundation leveling material, 28...Rug, 30...
... Nut, 31 ... Road pavement, 32 ...
・・・Filling material, 33... Cut groove, 34...
Reinforcement plate, 35... Web, 36... Upper flange, 37... Lower flange 38... Base, 40... Steel girder, 41・・・・・・Surface mounting.

Claims (1)

[Claims] 1. In a place other than a construction site such as a factory, the upper layer is a series of paving material layers made of the same material as road pavement, and the lower layer is a pair of paving material layers separated left and right by a gap. Producing a paving member by providing a bearing member and connecting the paving material layer and the bearing member with a connecting means fixed to the bearing member, transporting the paving member to a construction site, and at the construction site. A construction method for paving road joints, which comprises: bridging the pavement members to opposite ends of the deck slabs with a gap between them at the road joints, and connecting supporting members to the deck slabs or girders. 2. The construction method for road joint pavement according to claim 1, wherein the supporting member is a flat horizontal substrate, and the horizontal substrate is connected to the deck slab or girder with anchor bolts. 3. The horizontal substrate has a corrugated inner edge.
Construction method for paving road joints as described in section. 4. The construction method for road joint pavement according to claim 2, wherein the horizontal substrate has a straight inner edge. 5. The support member is a base having an upper flange and a lower flange on the upper and lower sides of the web, and the lower flange of the base is connected to the steel girder with bolts. Paving construction method. 6. The construction method for road joint pavement as claimed in claim 5, wherein the upper flange has a corrugated inner edge. 7. The construction method for road joint pavement according to claim 5, wherein the upper flange has a straight inner edge. 8. The construction method for road joint pavement according to any one of claims 1 to 7, wherein the paving material layer is formed of asphalt paving material. 9. The construction method for road joint pavement according to claim 8, wherein the asphalt paving material is a goose asphalt paving material. 10. The construction method for road joint pavement according to any one of claims 1 to 7, wherein the paving material layer is formed of cement concrete. 11. The construction method for road joint pavement according to any one of claims 1 to 7, wherein the paving material layer is formed of resin mortar. 12. The construction method for road joint pavement according to any one of claims 1 to 7, wherein the paving material layer is formed of resin concrete. 13. The method for constructing road joint pavement according to any one of claims 1 to 12, wherein the coupling means is a coupling protrusion projecting from the upper surface of the support member. 14. The coupling means is defined by any one of claims 1 to 12, which comprises a coupling protrusion projecting from the upper surface of the support member and a coupling line fixedly attached to the upper part of the coupling protrusion and connecting the coupling protrusions with each other. Construction method for road joint pavement described. 15 At a place other than a construction site, such as a factory, a series of paving material layers made of the same material as road pavement is used as the upper layer, a pair of supporting members are separated on the left and right by a gap in the lower layer, and both of these layers are used. A paving member is manufactured by providing a bridge plate spanning the supporting member and covering the gap, and connecting the paving material layer and the supporting member with a connecting means fixed to the supporting member, and manufacturing the paving member. A road characterized in that the pavement members are transported to a construction site, and at the construction site, the paving members are bridged to the opposite end of the deck slab with a gap between road joints, and the supporting members are connected to the deck slab or girder. Construction method for joint pavement. 16. The method of constructing road joint pavement according to claim 15, wherein the supporting member is a flat horizontal board, and the horizontal board is connected to the deck slab or girder with anchor bolts. 17. The construction method for road joint pavement according to claim 16, wherein the horizontal substrate has a corrugated inner edge. 18. The construction method for road joint pavement according to claim 16, wherein the horizontal substrate has a linear inner edge. 19 The supporting member is a base having an upper flange and a lower flange on the upper and lower sides of the web, respectively, and the lower flange of the base is connected to the steel girder with bolts.
Construction method for paving road joints as described in section. 20. The construction method for road joint pavement according to claim 19, wherein the upper flange has a corrugated inner edge. 21. The construction method for road joint pavement according to claim 19, wherein the upper flange has a straight inner edge. 22. The construction method for road joint pavement according to any one of claims 15 to 21, wherein the paving material layer is formed of asphalt paving material. 23. The construction method for road joint pavement according to claim 22, wherein the asphalt paving material is a goose asphalt paving material. 24. The construction method for road joint pavement according to any one of claims 15 to 21, wherein the paving material layer is formed of cement concrete. 25. The construction method for road joint pavement according to any one of claims 15 to 21, wherein the paving material layer is formed of resin mortar. 26. The construction method for road joint pavement according to any one of claims 15 to 21, wherein the paving material layer is formed of resin concrete. 27. The method for constructing road joint pavement according to any one of claims 15 to 26, wherein the coupling means is a coupling protrusion projecting from the upper surface of the support member. 28. Claims 15 to 26, wherein the coupling means comprises a coupling protrusion that projects from the upper surface of the support member, and a coupling line that is fixedly attached to the upper part of the coupling protrusion and connects the coupling protrusions with each other.
A construction method for road joint pavement according to any of the paragraphs. 29 At a place other than a construction site such as a factory, the upper layer is a series of paving material layers made of the same material as road pavement, and the lower layer is a pair of horizontal substrates separated on the left and right by a gap. A paving member is formed by joining a paving material layer and a horizontal substrate using a joining means fixed to the horizontal substrate, and the paving member is transported to a construction site, where upper flanges are attached to the top and bottom of the web, respectively. The lower flanges of each of a pair of bases each having a lower flange and a lower flange are fixed to opposing steel girder ends with a gap in the road joint member, and both lateral substrates of the paving member are fixed to the respective bases. A construction method for road joint pavement, characterized by joining to the upper flange of the road joint. 30. The construction method for road joint paving according to claim 29, wherein the horizontal substrate has a corrugated inner edge. 31. The construction method for road joint pavement according to claim 29, wherein the horizontal substrate has a straight inner edge. 32. The construction method for road joint pavement according to any one of claims 29 to 31, wherein the paving material layer is formed of asphalt paving material. 33. The construction method for road joint pavement according to claim 32, wherein the asphalt paving material is a goose asphalt paving material. 34. The construction method for road joint pavement according to any one of claims 29 to 31, wherein the paving material layer is formed of cement concrete. 35. The construction method for road joint pavement according to any one of claims 29 to 31, wherein the paving material layer is formed of resin mortar. 36. The construction method for road joint pavement according to any one of claims 29 to 31, wherein the paving material layer is formed of resin concrete. 37. The construction method for road joint pavement according to any one of claims 29 to 36, wherein the coupling means is a coupling protrusion projecting from the upper surface of the horizontal substrate. 38. Claims 29 to 36, wherein the coupling means comprises a coupling protrusion projecting from the upper surface of the horizontal substrate and a coupling line fixed on the upper part of the coupling protrusion and connecting the coupling protrusions with each other.
A construction method for paving road joints as described in any of paragraphs. 39 At a place other than a construction site, such as a factory, a series of paving material layers made of the same material as road pavement is used as the upper layer, a pair of horizontal substrates are separated on the left and right by a gap in the lower layer, and both of these are used. A paving member is formed by providing a bridge plate spanning the horizontal substrate and covering the gap, and bonding the paving material layer and the horizontal substrate by a connecting means fixed to the horizontal substrate, and forming a paving member. At the construction site, the lower flanges of each of the pair of bases, each consisting of an upper flange and a lower flange provided on the upper and lower sides of the web, are attached to the ends of the steel girders facing each other with a clearance at the road joint. A construction method for paving a road joint area, characterized in that both lateral substrates of the paving member are connected to upper flanges of both bases, respectively. 40. The construction method for road joint pavement according to claim 39, wherein the horizontal substrate has a corrugated inner edge. 41. The construction method for road joint pavement according to claim 39, wherein the horizontal substrate has a straight inner edge. 42. The construction method for road joint pavement according to any one of claims 39 to 41, wherein the paving material layer is formed of asphalt paving material. 43. The construction method for road joint pavement according to claim 42, wherein the asphalt paving material is a goose asphalt paving material. 44. The construction method for road joint pavement according to any one of claims 39 to 41, wherein the paving material layer is formed of cement concrete. 45. The construction method for road joint pavement according to any one of claims 39 to 41, wherein the paving material layer is formed of resin mortar. 46. The construction method for road joint pavement according to any one of claims 39 to 41, wherein the paving material layer is formed of resin concrete. 47. The construction method for road joint pavement according to any one of claims 39 to 46, wherein the coupling means is a coupling protrusion projected from the upper surface of the horizontal substrate. 48. Claims 39 to 46, wherein the coupling means comprises a coupling protrusion projecting from the upper surface of the horizontal substrate and a coupling line fixed on the upper part of the coupling protrusion and connecting the coupling protrusions with each other.
The construction method for paving road joints as described in any of the paragraphs.