JP2011163079A - Water leakage guide apparatus for expansion joint for road bridge - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent neutralization of a concrete floor slab, rusting of a main girder made of steel, or the like caused by a water leakage from a road bridge joint part (a floor slab expansion gap). <P>SOLUTION: Throating members (18a), (18b) separated by fixed distances (d1), (d2) from floor slabs (1) with the projecting tip parts facing the road bridge joint part (S), or rising internal wall surfaces (1y), (2y) of the floor slab (1) and an abutment (2) are integrally projected from expansion joints (J1)-(J8) themselves or/and the floor slabs (1) or the floor slab (1) and abutment (2) to prevent a water leakage (W) falling from the joint expansion gap (D), from reaching the rising internal wall surfaces (1y), (2y). <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a water leakage induction device for an expansion joint for a road bridge, and is intended to prevent early deterioration of a concrete floor slab, a steel main girder, and the like due to transmission of water leakage from the joint gap.

  Rubber between concrete floor slabs (bridge girders) of road bridges or between joints of load-supporting expansion joints laid by post-cast concrete into boxed recesses cut out in the floor slab and abutment Seals made of metal and other stretchable water-stopping materials are usually installed by vulcanization adhesion or fixing bolts, but the water-stopping materials will deteriorate with age, so water leakage will inevitably occur. .

  And the water leakage from the joint gap travels through the concrete slab facing the road bridge joint (floor slab gap) to the concrete girder or steel main girder and further the shoe (support) supporting the main girder. From the concrete floor slab and concrete girder that has been repeatedly subjected to the water leakage, the alkali component melts and becomes free lime and hangs down in a so-called icicle shape, and the concrete floor slab and the embedded reinforcing bars of the concrete girder also leak. It rusts due to penetration of.

  If the leakage of water leakage is left for a long time, the steel main girder is peeled off, and the web of the main girder and a pair of upper and lower flanges rust. Furthermore, even the steel shoe (support) supporting the main girder is rusted, and the durability of the road bridge is reduced. Such a phenomenon has been found by field surveys.

  In this respect, in Patent Documents 1 to 3 described below, the water leaking from the joint gap is received by the hook-shaped rubber belt and discharged to the shoulder according to the road crossing gradient.

Japanese Patent No. 3442362 Japanese Patent No. 3016558 Japanese Utility Model Publication No. 51-51794

  However, rubber seals and other water-stopping materials that are interposed between joints are used to catch pavement asphalt peeling pieces that enter from the road surface, fallen earth and sand from passing vehicles, tire wear pieces, and various other solids. In the case of a large amount of cold districts or a road bridge with a large amount of expansion and contraction, it easily peels off from the expansion joint.

  Then, the water stop material is received by the hook-shaped rubber belt hanging from the expansion joint itself or the concrete floor slab (the main body of the road bridge), and the drainage function along the crossing direction of the rubber belt is lost. As a result, the water leakage from the joint gap falls from the seam portion (butting portion) of each lane in the rubber belt, and still causes premature deterioration of the concrete floor slab and the steel main girder.

  The present invention aims to improve such a problem, and in order to achieve the object, in claim 1, from the floor slabs where the overhanging end faces the road bridge joint part or from the standing inner wall surface of the floor slab and the abutment The draining material that will be separated by a certain distance is projected integrally from the expansion joint itself or / and the floor slabs or from the floor slab and the abutment, and water leaking from the joint gap is transmitted to the standing inner wall surface. It is characterized by preventing.

  According to a second aspect of the present invention, the draining material is a rubber symmetric longitudinal or asymmetric pair, and its base end is attached and fixed to the expansion joint.

  The third aspect of the present invention is characterized in that the draining material is formed by projecting downward as a metal integrally formed with the expansion joint or attached to the expansion joint as a separate metal from the expansion joint.

  In claim 4, the draining material is a rubber or metal symmetrical pair, and the upper end, lower surface or road bridge seam of the concrete slab with the base end cut out of the box opening recess for embedment of expansion joint It is attached and fixed to the standing inner wall faced to the section.

  In claim 5, a pair of parallel steel plate upright wall plates extending the expansion joint in a straight line shape in plan view along the road bridge joint portion, and from the lower end portion of any one of them, the overall L in side view is substantially L. A load-supporting type consisting of a horizontal steel plate base plate that continuously extends in the rear direction and a plurality of embedded stud anchors that continuously extend in the rear direction away from both standing wall plates to form a letter shape. As that

  A pair of metal or rubber draining material from both standing wall plates or one of the standing wall plates and the other base plate, and the floor slabs with their protruding ends facing the road bridge joint or between the floor slab and the abutment As a relational state separated from the standing inner wall surface by a certain distance, it is projected integrally downward.

  In claim 6, the expansion joint is continuously stretched in a rearward direction away from each other from a pair of parallel steel plate standing wall plates extending linearly in plan view along the road bridge joint. From a pair of horizontal steel plate base plates to be put out and a plurality of embedded stud anchors that continuously protrude from the two standing wall plates in the backward direction away from each other, it is shaped into an overall L-shape that is symmetrical or asymmetrical as a whole. As a load-supporting type,

  A set of metal or rubber draining material from both standing wall plates or both plate plates, separated from each other by a fixed distance from the floor slabs whose overhanging end faces the road bridge seam, or from the standing inner wall surface of the floor slab and the abutment As a relational state, it is characterized by projecting downward integrally.

  According to a seventh aspect of the present invention, a pair of parallel steel plate upright wall plates extending in a straight line shape in plan view along the road bridge joint portion and the extension joints are continuously extended from both the upright wall plates in the rearward direction away from each other. As a load-supporting type consisting of multiple embedded stud anchors,

  A pair of metal or rubber drainers from both standing wall plates, with the overhanging tip facing the road bridge seam or between the floor slab and the standing inner wall of the abutment by a certain distance It is characterized by protruding integrally downward.

  In claim 8, the expansion joint is extended in a straight line shape in plan view along the road bridge joint part, and a pair of parallel steel-made standing wall plates having a difference in height at the lower end part, and from both lower end parts to each other. From a pair of horizontal steel plate base plates with a difference in height that continuously extend in the same forward direction that overlap, and a plurality of embedded stud anchors that continuously protrude in the rear direction away from both standing wall plates As a load-supporting type shaped like an almost L-shape of the overall similarity,

  A pair of metal or rubber drainers from the tip of both base plates, with the protruding tip facing the road bridge seam or between the floor and the standing inner wall of the abutment by a certain distance As described above, it is characterized by projecting integrally downward.

  In the ninth aspect, the expansion joint is continuously extended from the upper end portions of the pair of parallel steel plate standing wall plates extending in a straight line shape in plan view along the road bridge joint portion to the front approaching each other. It consists of a pair of horizontal steel plate top plates and a plurality of stud studs for embedding that are continuously extended away from the two standing wall plates in the rearward direction. As a load-supporting type cut out in a corrugated shape or sawtooth shape in plan view extending along the road bridge seam,

  A pair of metal or rubber drainers from both standing wall plates, with the overhanging tip facing the road bridge seam or between the floor slab and the standing inner wall of the abutment by a certain distance It is characterized by protruding integrally downward.

  In claim 10, a pair of steel plate upright wall plates facing each other, wherein the expansion joint is bent in a continuous meandering form in a plan view in which forward projecting convex portions and non-projecting concave portions alternate on the road bridge joint portion, and both A flat steel plate base plate that projects from the lower end of the steel plate to the back direction away from each other and shields the open lower surface of the forward projecting convex portion, and continuously projects from the both standing wall plates to the back direction away from each other. As a load-supporting type consisting of multiple embedded stud anchors,

  Both standing wall plates, both base plates, or one standing wall plate and the other base plate, one set of metal or rubber draining material, and the floor slabs with their protruding ends facing the road bridge seam or the floor slab As a relational state that is separated from the standing inner wall surface of the abutment by a certain distance, it is characterized by projecting integrally downward.

  In claim 11, a pair of parallel connection plates extending in a straight line shape in plan view along the road bridge joint portion are fixed and integrated from behind to the non-extending recesses of both standing wall plates,

  A set of rubber draining material and a presser seat plate from the back are attached and fixed at least a fixed length corresponding to the non-projecting concave portion in both the connecting plates.

  According to a twelfth aspect of the present invention, a set of a rubber draining material and a presser seat plate from the front thereof are attached and fixed only for a certain length corresponding to the non-extending concave portions of both standing wall plates.

  In claim 13, the water-stopping material catching floor plate that sinks into the gap between the base plate and the joint between the two standing wall plates is integrally projected forward, and the projecting tip of the water-stopping material catching floor plate is used as a draining material. It is made to function.

  In claim 14, while extending both base plates continuously extending a certain length from the non-extending concave portion of the standing wall plate in the rear direction away from each other,

  A pair of horizontal water-stopping material receiving floor plates that sink into the gap between the base plate and the joint play are attached and fixed from below only to the extension pieces of both base plates via horizontal spacer plates extending along the road bridge joints. ,

  The fixing tool is also used, and one set of rubber draining material is attached and fixed to the extended extension pieces of both base plates from the lower side of the water stopping material receiving floor plate.

  In claim 15, the horizontal filler plate that forms the expansion joint as a steel floor slab, and the front end projecting forward on the road bridge joint are cut into a corrugated shape, a sawtooth shape, and other meandering shapes in plan view, and In a planar meandering form in which a horizontal deck plate attached and fixed to the filler plate from above via a rubber plate, and a forward projecting convex portion and a non-projecting concave portion on the road bridge joint portion alternate. From the bent steel plate standing wall plate, a horizontal steel plate base plate that integrally projects rearward from the lower end of the standing wall plate and shields the open bottom surface of the forward projecting convex portion, and the standing wall plate As that of the load support type that consists of a plurality of stud studs for embedding that also continuously project in the rear direction,

  One set of rubber or metal draining material from the rubber plate or deck plate and the standing wall plate or base plate, and the slabs with their overhanging ends facing the road bridge joints or standing of the floor slab and the abutment As a relational state that is separated from the inner wall surface and the steel main girder by a certain distance, it is characterized by projecting integrally downward.

  Furthermore, in claim 16, a pair of parallel steel plate upright wall plates extending the expansion joint in a straight line shape in plan view along the road bridge joint portion, and a rearward direction away from each other from both upper ends thereof A pair of horizontal steel plate top plates projecting from the top, a horizontal steel plate or rubber plate slide top cover attached and fixed to either one of the top plates from above, and the backs away from both standing wall plates As for the sidewalk which consists of several embedded stud anchors that continuously project in the direction,

  A pair of metal or rubber drainers from both standing wall plates, with the overhanging tip facing the road bridge seam or between the floor slab and the standing inner wall of the abutment by a certain distance It is characterized by protruding integrally downward.

  According to the above configuration of claim 1, the water blocking material interposed between the joint joints of the expansion joint deteriorates during use over time, and even if water leaks from the joint gap, It is transmitted to the concrete floor slab or the abutment inner wall of the abutment and the steel main girder, etc., and the neutralization or rusting of these occurs. Alternatively, it can be prevented by the draining material attached to the floor slab and the abutment, and there is an effect that the problems of the prior art described at the beginning can be solved.

  In particular, if the above-mentioned draining material is installed in an overhanging manner from the concrete floor slabs or the floor slab and the abutment in which the expansion joint itself and the box opening recess for embedding the expansion joint are cut out, The preventive maintenance effect of the road bridge can be achieved more reliably, and the durability of the road bridge is significantly improved.

  In that case, if the configuration of claim 2 is adopted, the rubber drainer is applied to the expansion joint itself, and if the configuration of claim 3 is adopted, the metal drainer is also applied to that of the expansion joint. Any of them can be attached and fixed without hindrance, and there is an effect that the water leakage induction device for the expansion joint according to the present invention can be manufactured at low cost.

  On the other hand, if the configuration of claim 4 is adopted, any type of expansion joint shown in various embodiments is embedded in a concrete floor slab of a road bridge or a boxed recess for expansion joint embedded in an abutment. Even if it is constructed, the above effect corresponding to the configuration of claim 1 can always be expected, and the versatility as a water leakage induction device is excellent.

  Furthermore, if the structure of Claims 5-16 is employ | adopted, the most effective water leakage induction | guidance | derivation apparatus according to various embodiment of an expansion joint can be manufactured reasonably. In that case, if the structure of Claim 13 or Claim 14 subordinate to Claim 10 is adopted, the water-stopping material is prevented from dropping from the joint gap by the water-stopping material receiving floor plate. It can be said that it is remarkably useful especially as a cold district specification that is susceptible to snow pressure on the joint gap.

It is a slope view showing a 1st embodiment of the present invention. It is a side sectional view similarly. It is sectional drawing which follows the 3-3 line of FIG. It is a sectional side view which shows the 1st partial modification embodiment corresponding to FIG. It is a sectional side view which shows the 2nd partial modification embodiment corresponding to FIG. It is a sectional side view which shows the 3rd partial modification embodiment corresponding to FIG. It is a sectional side view which shows the 4th partial modification embodiment corresponding to FIG. It is a sectional side view which shows the 5th partial modification embodiment corresponding to FIG. It is a sectional side view which shows the 6th partial modification embodiment corresponding to FIG. It is a sectional side view which shows the 7th partial modification embodiment corresponding to FIG. It is a sectional side view which shows 2nd Embodiment of this invention. It is a sectional side view which shows the 1st partial modification embodiment corresponding to FIG. It is a sectional side view which shows the 2nd partial modification embodiment corresponding to FIG. It is a sectional side view which shows the 3rd partial modification embodiment corresponding to FIG. It is a sectional side view which shows 3rd Embodiment of this invention. It is a sectional side view which shows 4th Embodiment of this invention. It is a perspective view which shows 5th Embodiment of this invention. It is a side sectional view similarly. It is a sectional side view which shows the 1st partial modification embodiment corresponding to FIG. It is a sectional side view which shows the 2nd partial modification embodiment corresponding to FIG. It is a sectional side view which shows the 3rd partial modification embodiment corresponding to FIG. It is a sectional side view which shows the 4th partial modification embodiment corresponding to FIG. It is a sectional side view which shows the 5th partial modification embodiment corresponding to FIG. It is a perspective view which shows 6th Embodiment of this invention. It is also a plan view. It is the 26-26 sectional view taken on the line of FIG. It is a top view which shows the 1st partial modification embodiment corresponding to FIG. It is the 28-28 sectional view taken on the line of FIG. It is a top view which shows the 2nd partial modification embodiment corresponding to FIG. FIG. 30 is a sectional view taken along line 30-30 in FIG. 29. It is a sectional side view which shows the 3rd partial modification embodiment corresponding to FIG. FIG. 32 is a side sectional view showing the third partial modified embodiment cut at a position different from that in FIG. 31. It is a top view which shows the 4th partial modification embodiment corresponding to FIG. It is a 34-34 sectional view taken on the line of FIG. It is a top view which shows the 5th partial modification embodiment corresponding to FIG. FIG. 36 is a cross-sectional view taken along line 36-36 in FIG. 35. FIG. 27 is a side sectional view showing a sixth partial modified embodiment corresponding to FIG. 26. FIG. 27 is a side sectional view showing a seventh partial modified embodiment corresponding to FIG. 26. FIG. 27 is a side sectional view showing an eighth partial modified embodiment corresponding to FIG. 26. FIG. 27 is a side sectional view showing a ninth partial modified embodiment corresponding to FIG. 26. FIG. 27 is a side sectional view showing a tenth modified embodiment corresponding to FIG. 26. It is a sectional side view which shows the 11th partial modification embodiment corresponding to FIG. FIG. 27 is a side sectional view showing a twelfth partial modified embodiment corresponding to FIG. 26. It is a perspective view which shows the one side of the expansion joint in FIG. It is a perspective view which shows 7th Embodiment of this invention. It is also a plan view. FIG. 47 is a sectional view taken along line 47-47 in FIG. 46. It is the 48-48 sectional view taken on the line of FIG. It is a sectional side view which shows the 1st partial modification embodiment corresponding to FIG. It is a sectional side view which shows 2nd partial modification embodiment corresponding to FIG. It is a sectional side view which shows 8th Embodiment of this invention. It is a cross-sectional front schematic diagram of a road bridge. It is a side cross-sectional schematic diagram similarly. It is side sectional drawing which shows 9th Embodiment of this invention. FIG. 55 is a side sectional view showing a first partial modified embodiment corresponding to FIG. 54. FIG. 55 is a side sectional view showing a second partial modified embodiment corresponding to FIG. 54. FIG. 55 is a side sectional view showing a third partial modified embodiment corresponding to FIG. 54. FIG. 55 is a side sectional view showing a fourth partial modified embodiment corresponding to FIG. 54. FIG. 55 is a side sectional view showing a fifth partial modified embodiment corresponding to FIG. 54. FIG. 55 is a side sectional view showing a sixth partial modified embodiment corresponding to FIG. 54. It is a slope view which shows 10th Embodiment of this invention. It is a side sectional view similarly.

  1 to 10 showing a first embodiment of the present invention applied to a steel road bridge (steel bridge), (G) is a road bridge joint. Part (also called floor slab play space) (S) as an almost L-shape facing each other in side view, concrete floor slab (bridge girder) (1) of the road bridge or floor slab (1) and abutment ( It is a box opening recess for embedding the expansion joint cut out in 2), and has an average depth of 120 to 230 mm from the road surface of the paved asphalt (3).

  (F) is a steel main girder (steel girder) having a substantially E-shaped cross section from the web (4), the upper flange (5) and the lower flange (6). (7) and an end stiffener (8) are also provided. (9) is a steel shoe (support) that supports the main girder (F) from below, and is installed on the flat upper surface of the pier (10) via a height-adjusting mortar (common name: Tyco) (11). Has been.

  (J1) is a load-supporting expansion joint according to the first embodiment of the present invention, and is longer by a certain unit length (one lane) (for example, about 1500 to 2000 mm) along the road bridge joint (S). A pair of parallel steel plate upright wall plates (12a) (12b) extending from the lower end of either one, preferably as a continuous monolithic angle steel plate (substantially L-shaped in a side view) in the backward direction It consists of an overhanging horizontal base plate (13).

  In other words, the base plate (13) that serves as the receiving base for the cast concrete (C) is raised from the front end portion (front end portion) projecting forward on the road bridge joint portion (S) as shown in FIGS. The wall plate (12b) stands up continuously and integrally, and the mutual gap (referred to as joint play) (D) between the standing wall plates (12a) and (12b) is the road bridge joint (S). Along the straight line in plan view.

  (14) is a stretchable elastic water blocking material interposed in the joint clearance (D) of the expansion joint (J1), and is a rubber seal vulcanized and bonded to both standing wall plates (12a) (12b). A back-up material (15) such as black sand or liquid rubber may be filled in the concave groove.

  However, as the elastic water-stopping material (14), instead of vulcanization adhesion of a rubber seal material, a foamed resin such as urethane foam or styrofoam that is sealed in the joint gap (D), a butadiene-based sealing material, Room temperature vulcanized liquid rubber, water-swellable rubber, injection type foamed sponge, and others may be used. In any case, the water stop material (14) of the joint clearance (D) has a function of capturing various solid objects falling from the road surface and a soundproof function in addition to the water stop function.

  (16a) and (16b) are integrally extended from the two standing wall plates (12a) and (12b) of the expansion joint (J1) in the rearward direction away from each other as an array distribution state maintaining a predetermined left-right mutual distance. A plurality of stud anchors for embedding, each comprising a reinforcing bar (deformed bar), a threaded bar, a steel plate (flat bar), etc., all of which are horizontally supported through the receiving bars (17a) (17b) It becomes.

  (18a) and (18b) are metal drainers that are fixedly attached to one of the standing wall plates (12a) and the remaining base plate (13) that form the expansion joint (J1) by welding or bonding. One set of materials, extending long in the bridge width direction along the road bridge joint (S), and projecting downward from the upright wall plate (12a) and the base plate (13) (lower end) However, the concrete floor slab (1) facing the road bridge joint (S) and the standing inner wall surface (1y) (2y) of the abutment (2) are kept in a relational state separated by a certain distance (d1) (d2). Yes.

  Based on the configuration of such draining material (18a) (18b), during the years of use of the expansion joint (J1) for the road bridge, water leakage (W) should be generated from the joint gap (D). S) falls through the concrete floor slab (1) of the road bridge (steel bridge) and the steel main girder (F), etc. (without contact), and in the concrete floor slab (1) It is possible to prevent rusting and rusting of the steel main girder (F).

  In this case, in the embodiment shown in FIGS. 1 to 3, a pair of asymmetrical draining materials (18a) and (18b), each of which is a metal that hardly rusts, is composed of the expansion joint (J1) itself and a separate stainless steel plate or the like. As shown in FIGS. 4 and 5, the one standing wall plate (12 a) is attached and fixed to the front surface facing the joint clearance (D) and the lower surface of the other base plate (13) by welding or bonding, for example. As shown in the partially modified embodiment, a plurality of fixing screws (19a) and long presser seat plates (20a) scattered and distributed on a front or rear surface of one standing wall plate (12a) with rubber drainers (18a). ) Or the like, and a metal drainer (18b) may be attached and fixed to the other base plate (13) by welding or adhesion. (21a) is a bending guide for separating the protruding tip (lower end) of the rubber draining material (18a) from the standing inner wall surface (1y) of the concrete floor slab (1).

  As is apparent from the partially modified embodiment of FIG. 6, a metal draining material (18a) is welded to the front surface of one of the standing wall plates (12a) as shown in FIG. While attaching and fixing by bonding or the like, a rubber draining material (18b) may be attached and fixed to the corresponding front surface of the other standing wall plate (12b) by bonding or vulcanization bonding. In addition, as long as it is limited to the above-mentioned metal draining material, it can be formed by continuously projecting from the standing wall plates (12a) (12b) and the base plate (13) as an integral part of the expansion joint (J1) itself. .

  Further, as is apparent from the partially modified embodiment of FIGS. 7 and 8, a set of draining materials (18a) and (18b) is made of rubber that is brazed and retained, and in one standing wall plate (12a). While being attached and fixed to the front or back surface by adhesion or vulcanization adhesion, the other standing wall plate (12b) or base plate (13) may be similarly fixed by adhesion or vulcanization adhesion. As the rubber draining material (18a) (18b), those having shape retention strength from synthetic rubber, rubber containing reinforcing fibers, and the like are desirable.

  At that time, as shown in FIG. 8, one set of the rubber drainers (18a) and (18b) is attached and fixed to the entire front surface where the two standing wall plates (12a) and (12b) face each other, and the joint If the front surfaces of the standing wall plates (12a) and (12b) facing the play space (D) are covered, so-called salt melting for snow melting sprayed in cold regions, both standing wall plates (12a) of the expansion joint (J1) ( There is an effect that the rubber draining material (18a) (18b) can protect the possibility of rusting of 12b).

  Furthermore, as is apparent from the partially modified embodiment of FIGS. 9 and 10, the other standing wall in which one standing wall plate (12a) disposed on the abutment (2) side is disposed on the concrete floor slab (1) side. Extending deeper downward than the plate (12b), one of the standing wall plates (12a) is provided with a rubber or metal draining material (18a), a plurality of fixing screws (19a) and a presser seat plate (20a). The metal draining material (18b) may be attached to the other base plate (13) with a plurality of fixing screws (19b) and a presser seat plate (20b). In addition, the presser seat plate (20a) of the draining material (18a) with respect to one of the standing wall plates (12a) in the embodiment of FIG. 10 is added to the lower end portion of the standing wall plate (12a) to be extended. It also functions as a damming wall plate for cast concrete (C).

  In any case, one set of rubber or metal draining material (18a) (18b) is from both standing wall plates (12a) (12b) forming the expansion joint (J1) or one of the standing walls. The leaked water (W) that protrudes downward from the plate (12a) and the other base plate (13) and falls from the joint gap (D) is the standing inner wall surface (1y) of the concrete slab (1) and the abutment (2). ) (2y) if it can be prevented from being transmitted, the fixing means is a plurality of fixing screws (19a) and (19b) scattered in the above-mentioned welding, adhesion, vulcanization adhesion, bridge width direction, Not only the presser seat plates (20a) and (20b) extending long along the bridge width direction, other means can be widely adopted.

  When constructing the expansion joint (J1) for road bridges on the site, a horizontal hanger bar (illustrated) is bridged over the boxed recess (G) cut out in the road bridge. As a corresponding positional relationship in which the joint gaps (D) of the two standing wall plates (12a) and (12b) face each other on the road bridge joint (floor gap) (S) are used, the hanging insertion set To do.

  At that time, as shown in the embodiment of FIG. 5, by pushing one standing wall plate (12a) to which the rubber draining material (18a) is attached from the front into the inside of the boxing recess (G), The material (18a) can be kept in a brazed state in which it is bent and deformed so as to sit on the top surface of the concrete floor slab (1) (the bottom surface of the unboxing recess).

  And, the expansion joint (J1) having a fixed unit length is connected in series with the adjacent connection angles (not shown) and is extended in the crossing direction (bridge width direction) of the road bridge. After connecting and integrating with the horizontal joint bars (17a) (17b) supported by the stud anchors (16a) (16b) for embedding of the expansion joint (J1), the concrete floor slab (1) and the abutment (2) The existing vertical embedded reinforcing bars or the insertion anchors (hole-in anchors) (22a) and (22b) driven in place thereof are assembled and welded in a vertical and horizontal three-dimensional cross-over state, and the above-mentioned box recess What is necessary is just to embed and embed in the concrete floor slab (1) and the abutment (2) of the road bridge by placing the post-cast concrete (C) from above into the inside of (G).

  If it does so, it will be attached to both standing wall plates (12a) (12b) which form the expansion joint (J1), or one of the standing wall plates (12a) and the other base plate (13). A set of draining materials (18a) (18b) is in a relational state in which the concrete floor slab (1) and the abutment (2) are separated from the standing inner wall surfaces (1y) (2y) by a certain distance (d1) (d2). Even if water leakage (W) falls from the joint gap (D) of the expansion joint (J1) due to aging or damage of the water-stopping material (14), the water leakage (W) is concrete. The standing inner wall (1y) (2y) of the floor slab (1) and the abutment (2) and the steel main girder (F) and shoe (support) (9) are not transmitted, There is no risk of rusting, etc. It is of being.

  As shown in the embodiments of FIGS. 5, 9, and 10, after-cast concrete (C) is placed in the boxed recess (G) of the road bridge, and the paved asphalt (3x) is covered on the surface. Thus, it is preferable to prevent the formation of a dent or a step at the boundary between the post-cast concrete (C) and the paved asphalt (3), and to achieve effects such as handling stability of a passing vehicle and noise prevention.

  Next, FIGS. 11 to 14 show a load-supporting expansion joint (J2) according to a second embodiment of the present invention, which is also a certain unit length along the road bridge joint (S). A pair of parallel steel plate upright wall plates (12a) (12b) extending in a straight line in a plan view and continuous from the lower ends of the two upright wall plates (12a) (12b) in the rearward direction. From the pair of horizontal steel plate base plates (13a) and (13b) projecting from each other, an overall L-shape that is symmetrical or asymmetrical as a whole is formed.

  A plurality of embedding stud anchors (16a) and (16b) made of reinforcing bars, screw rods, flat bars, etc. are arranged at predetermined left and right mutual intervals in the rearward direction away from the both standing wall plates (12a) and (12b). As an array distribution state that maintains the above, the base plate (13a) (13b) that is the bottom of the post-cast concrete (C) is continuously extended longer. Further, a water-stopping material (14) having a substantially U-shape in a side view is preferably added from the rubber seal material to the joint front (D) in a sealed state to the front surfaces facing both the standing wall plates (12a) and (12b). It is also sulfur bonded.

  In the embodiment of FIG. 11, a pair of rubber draining members (18a) and (18b) that are symmetrical in the longitudinal direction are transferred from below to the base plates (13a) and (13b) of the expansion joint (J2). 19a) (19b) and presser seat plates (20a) (20b) are attached and integrated, and in the partially modified embodiment of FIG. 12 corresponding to FIG. ) (18b) is attached and fixed to the front surfaces of the two standing wall plates (12a) and (12b) facing each other by adhesion or vulcanization adhesion, and not only its draining effect but also chloride. The effect which prevents the rusting of both standing wall plates (12a) (12b) by ion is also achieved.

  In the partially modified embodiment of FIG. 13, a pair of metal drainers (18a) and (18b) that are symmetrical in the longitudinal direction are attached to both base plates (13a) and (13b) of the expansion joint (J2) from below by welding or bonding. It is fixed. The metal drainer (18a) (18b) is integrally formed with the expansion joint (J2) so as to continuously project downward from both the standing wall plates (12a) (12b) or the base plates (13a) (13b). Of course, it's okay.

  Furthermore, in the partially modified embodiment of FIG. 14, one standing wall plate (12a) disposed on the abutment (2) side is deep, and the other standing wall plate (12b) disposed on the concrete floor slab (1) side. A pair of rubber or metal draining materials (18a) (18b) is pressed from below with a plurality of fixing screws (19a) (19b) on both shallow horizontal base plates (13a) (13b) with different heights. It is attached and integrated by a seat plate (20a) (20b) or the like.

  In addition, since the other structure and construction method in 2nd Embodiment of FIGS. 11-14 are substantially the same as the said 1st Embodiment of FIGS. 1-10, the FIGS. Only the corresponding codes are entered, and the detailed description thereof is omitted.

  Next, FIG. 15 shows a load-supporting expansion joint (J3) according to a third embodiment of the present invention, which is a straight line in plan view by a certain unit length along the road bridge joint (S). A horizontal base plate (13) comprising a pair of standing steel plate standing wall plates (12a) (12b) extending in a long shape and serving as a receiving base for the post-cast concrete (C) described in the first and second embodiments. (13a) and (13b) are not provided, but a plurality of embedded stud anchors (16a) and (16b) are continuously separated from the both standing wall plates (12a) and (12b) in the rearward direction where they are separated from each other. It is overhanging for a long time.

  In that case, in the embodiment of FIG. 15, a water-stopping material (14) made of room-temperature vulcanized liquid rubber, water-swellable rubber, injection-type foamed sponge, urentafoam and the like, and its backup material or a separate secondary stop. The water material (23) is fixedly integrated in a sealed state of the joint clearance (D) to the front surfaces of the two standing wall plates (12a) and (12b) facing each other. As the secondary water-stopping material (23), it is preferable to employ a different material from the primary water-stopping material (14).

  Then, a set of rubber drainers (18a) (18b) that are symmetrical in the front-rear direction are attached to the front or rear surface of both standing wall plates (12a) (12b) and a plurality of fixing screws (19a) (19b) and presser seats. The plate (20a) (20b) is attached and fixed. Therefore, due to the aging of the water-stopping material (14) (23), etc., even if water leakage (W) falls from the joint clearance (D), the water leakage (W) is a set of draining materials ( 18a) (18b) is drained and not transmitted to the standing inner wall surface (1y) (2y) of the concrete slab (1) or the abutment (2). ) Does not cause rusting.

  In addition, since the other structure and construction method in 3rd Embodiment of FIG. 15 are substantially the same as 1st Embodiment of FIGS. 1-10, the corresponding code | symbol with FIGS. 1-10 is entered in the FIG. Therefore, the detailed description is omitted.

  Next, FIG. 16 shows a load-supporting expansion joint (J4) according to a fourth embodiment of the present invention, which is linear in a plan view by a certain unit length along the road bridge joint (S). And a pair of parallel steel plate upright wall plates (12a) (12b) having a difference in height at the lower end portions, and overlapping from the lower end portions of both the upright wall plates (12a) (12b). It consists of a pair of horizontal steel plate base plates (13) and (24) that have a difference in height that continuously project in the same forward direction.

  That is, the base plate (13) serving as the bottom of the post-cast concrete (C) is continuously projected backward from the lower end portion at the high position on the shallow upright wall plate (12b) side, while being deep. From the lower end at the lower position on the standing wall plate (12a) side, to the bottom of the water-stopping material (14) and its backup material or a separate secondary water-stopping material (23) interposed in the joint clearance (D) The base plate (24) is continuously projected forward on the road bridge joint (S).

  Moreover, a plurality of embedded stud anchors (16a) (16b) made of reinforcing bars, screw rods, flat bars, etc. are provided in a predetermined direction in the rearward direction away from the both standing wall plates (12a) (12b). It goes without saying that the arrangement distribution state that keeps the left and right mutual intervals is continuously extended for a long time.

  A rubber draining material (18b) is attached and fixed to the horizontal base plate (13) on the shallow upright wall plate (12b) side through a plurality of fixing screws (19b) and a presser seat plate (20b). In addition, a metal draining material (18a) is attached and fixed to the horizontal base plate (24) on the deep standing wall plate (12a) side by welding or adhesion. (25) is a post-cast concrete damming wall plate that sandwiches the rubber draining material (18b) between the front and back of the presser seat plate (20b), and the width of the bridge along the road bridge joint (S). As a state extending long in the direction, the base plate (13) is fixedly integrated with the protruding front end portion (rear end portion).

  One set of the draining materials (18a) and (18b) is integrally projected downward from the expansion joint (J4) itself, and the water leakage (W) that should fall from the joint clearance (D) is the road bridge joint. Prevents neutralization and rusting of steel main girders (F) without passing through the standing inner wall surfaces (1y) and (2y) of the concrete slab (1) and the abutment (2) facing the section (S) It can be done.

  In addition, the code | symbol (26) of FIG. 16 has shown the guide plate (rib anchor) for the blade tip escape of a snowplow effective as a cold district specification. Since the other structure and construction method in 4th Embodiment are substantially the same as 1st Embodiment of FIGS. 1-10, only the corresponding code | symbol with FIGS. 1-10 is entered in the FIG. 16, Detailed description thereof is omitted.

  Next, FIGS. 17 to 23 show a load supporting expansion joint (J5) according to a fifth embodiment of the present invention, which is a plan view of a certain unit length along the road bridge joint (S). A pair of parallel steel plate upright wall plates (12a) (12b) extending in a straight line and continuously projecting forward from the upper ends of both upright wall plates (12a) (12b) toward each other. A pair of horizontal steel plate top plates (27a) and (27b), and a cutout groove (28 having a constant opening width between the protruding tip portions (front end portions) of the top plates (27a) and (27b). ) As a plan view waveform extending along the road bridge joint (S), a sawtooth shape, and other meandering shapes.

  In addition, a plurality of embedded stud anchors (16a) and (16b) made up of reinforcing bars, screw rods, flat bars, etc. are arranged from both the standing wall plates (12a) and (12b) so as to maintain a predetermined left-right mutual spacing. In addition, they are continuously extended and extended in the rear direction away from each other. (29a) and (29b) are a pair of opposing stopper pieces that receive the water-stopping material (14) filled in the joint clearance (D), preferably made of an angle-shaped steel plate, and both standing wall plates (12a) (12b) ) Is attached and fixed to the front surface facing the joint clearance (D) by welding, a plurality of fixing screws (30a) (30b), or the like.

  In the embodiment shown in FIGS. 17 and 18, one set of rubber draining members (18a) (18b) is placed on the front surface of the standing wall plates (12a) (12b), and a plurality of fixing screws (19a) (19b) and a presser seat are provided. The plate (20a) (20b) is attached and fixed. Furthermore, one standing wall plate (12a) arranged on the abutment (2) side is deep and the other standing wall plate (12b) arranged on the concrete floor slab (1) side is shallow, A pair of rubber drainers (18a) (18b) projects downward from a certain lower position.

  In this case, as apparent from the partially modified embodiment of FIG. 19 corresponding to FIG. 18, the stopper stopper pieces (29a) and (29b) of the water stop material (14) are replaced with the rubber drainers (18a) and (18b). Also serving as a presser seat plate (20a) (20b), a pair of rubber draining materials (18a) (18b) symmetrical in the longitudinal direction by a plurality of fixing screws (19a) (19b) is used as both standing wall plates (12a) (12b). ), And as shown in the partially modified embodiment of FIG. 20, without using the fixing screws (19a) (19b), a set of rubber drainers (18a) (18b) You may attach and fix to both standing wall plates (12a) (12b) in the back-and-forth symmetrical arrangement state by adhesion, vulcanization adhesion, etc.

  On the other hand, a pair of metal drainers (18a) (18b) as shown in the partially modified embodiment of FIG. 21 is formed of angle-shaped steel plates that are symmetrical in the front-rear direction to the back surfaces of both standing wall plates (12a) (12b). The presser seat plate (20a) (20b) and a plurality of fixing screws (19a) (19b) may be attached and fixed.

  Further, a pair of front and rear symmetrical metal drainers (18a) and (18b) shown in the partially modified embodiment of FIG. 22 and a front and rear asymmetric metal drainers (18a) and (18b) shown in the partially modified embodiment of FIG. ) Are welded in a state of projecting forward from the two standing wall plates (12a) and (12b) toward each other, and preferably the draining materials (18a) and (18b) are attached to the water-stopping material (14). The receiving stopper pieces (29a) (29b) can also be used as a function.

  In any case, one set of the rubber or metal drainer (18a) (18b) is a concrete floor slab (1) facing the road bridge joint (S) or an upright inner wall surface (1y) of the abutment (2). (2y) is maintained in a relational state separated by a certain distance (d1) (d2), and even if water leakage (W) falls from the joint gap (D), the water leakage (W) The wall (1y) (2y) and the steel main girder (F) and shoe (support) (9) are not transmitted, and there is an effect to prevent neutralization and rusting of these. The durability and safety of the expansion joint (J5) are improved.

  In addition, since the other structure and construction method in 5th Embodiment are substantially the same as the said 1st Embodiment of FIGS. 1-10, the corresponding code | symbol with FIGS. 1-10 is written in the FIGS. Therefore, the detailed description is omitted.

  Next, FIGS. 24 to 44 show a load-supporting expansion joint (J6) according to a sixth embodiment of the present invention, which includes a forward projecting protrusion (f) on the road bridge joint (S) and A pair of steel plate upright wall plates (12a) (12b) facing each other bent in a continuous meandering shape in plan view in which non-projecting recesses (r) alternate, and both of the upright wall plates (12a) (12b) It consists of a horizontal steel plate base plate (13a) (13b) that projects integrally from the lower end part in the rear direction away from each other and shields the open lower surface of the forward projecting convex part (f). From 12a) and 12b, a plurality of embedded stud anchors (16a) and (16b) are arranged in an array distribution state maintaining a predetermined left and right mutual spacing. (13a) (13b) is longer continuously overhang extension than.

  In other words, the mutual gap (joint clearance) (D) between the two standing wall plates (12a) and (12b) is shaped into a waveform in a plan view, a zigzag shape, and other meandering forms. Has a water-stopping material (14) made of room-temperature vulcanized liquid rubber, injection-type foamed sponge and the like, and its backup material or a separate secondary water-stopping material (23) fixed and integrated in a filled state. The post-cast concrete (C) is not only placed on the boxed recess (G) of the road bridge, but also on the upward projecting projections (f) of both standing wall plates (12a) and (12b) communicating therewith from above. Thus, the two base plates (13a) and (13b) will be supported from below.

  A pair of metal or rubber drainers (18a) and (18b) is formed from both standing wall plates (12a) and (12b) forming the expansion joint (J6), or from both base plates (13a) and (13b). Or projecting downward integrally from one standing wall plate (12a) and the other base plate (13b), and the projecting tip (lower end) of the draining material (18a) (18b) is a concrete floor slab ( 1) Leakage (W) that should drop from the joint gap (D) by maintaining a relational state separated from the standing inner wall surfaces (1y) (2y) of the abutment (2) by a certain distance (d1) (d2) Is prevented from being transmitted to the standing inner wall surfaces (1y) (2y) and to the steel main beam (F) and the shoe (support) (9).

  That is, in the embodiment shown in FIGS. 24 to 26, a pair of short rubber draining materials (18a) and (18b) that are symmetric in the front-rear direction is provided only on at least the non-extending recesses (r) of both standing wall plates (12a) and (12b). From the inside (front) of the joint clearance (D), a corresponding short presser seat plate (20a) (20b) and a plurality of fixing screws (19a) (19b) are attached and fixed. (31a) (31b) is a reinforcing piece made of a short steel plate, which is fixedly integrated from the back (outside of the joint play) correspondingly only to the non-projecting recesses (r) of both standing wall plates (12a) (12b). It is.

  In this case, as shown in FIG. 26, the tip end portion (lower end portion of the overhang) that hangs down continuously from the front end portion of the base plate (13a) (13b) of the both standing wall plates (12a) (12b) by a certain depth. In other words, it is possible to function as a direct metal drainer (18c). The base plate (13a) (13b) may be installed in an upwardly inclined state in forming the metal drainer (18c) that hangs down by a certain depth.

  27 and 28 corresponding to FIGS. 25 and 26, a pair of long rubber drainers (18a) and (18b), which are also symmetrical in the longitudinal direction, extend along the road bridge joint (S). As a parallel straight line in plan view, the connection plate between the non-projecting recesses (r) from the outside (rear) of the joint gap (D) to the non-projecting recesses (r) of the two standing wall plates (12a) (12b) (Flat bar) (32a) (32b), presser seat plates (20a) (20b), a plurality of fixing screws (19a) (19b) and the like.

  However, a pair of short draining materials (18a) (18b) and their presser seat plates (20a) (20b) are both standing wall plates (12a) (12b) as shown in the partially modified embodiment of FIGS. It may be attached and fixed only to the non-overhanging recess (r). Even in such a configuration, the water leakage (W) falling from the joint clearance (D) is caused to the standing inner wall surface (1y) (2y) of the concrete floor slab (1) or the abutment (2) facing the road bridge joint (S). This is because the risk of transmission can be prevented by the set of draining materials (18a) and (18b).

  In this case, as is apparent from the partially modified embodiment of FIGS. 31 and 32, the one standing wall plate (12a) disposed on the abutment (2) side is deep and the other standing wall disposed on the concrete floor slab (1) side. By changing the wall plate (12b) shallowly and differently, the horizontal base plates (13a) and (13b) are projected from the lower end portions having different elevations in the backward direction away from each other, and both the standing wall plates (12a) and (12b) are projected. A pair of asymmetric rubber drainers (18a) and (18b) is connected to the non-projecting recess (r) of the joint plate (D) from the outside (back) of the joint clearance (D). ) (32b), presser seat plates (20a) (20b), a plurality of fixing screws (19a) (19b), and the like.

  According to this, the boxed recess (G) on the abutment (2) side is notched deeper than that on the concrete floor slab (1) side, and the surface of the post-cast concrete (C) placed here The pavement asphalt (3x) can be lined in a smooth state with no steps. The presser seat plate (20b) of the draining material (18b) with respect to the connection plate (32b) of the shallow upright wall plate (12b) is deeply extended from the lower end of the upright wall plate (12b), so It also functions as a lift (slide) guide plate.

  (33) is a horizontal locking piece that protrudes backward and integrally from the upper position of the presser plate (20b) to the box opening recess (G) of the concrete floor slab (1). Lock to the upper surface of the floor slab (1). Similarly, (21b) is a bending guide that projects integrally forward from the lower position of the presser seat plate (20b) to the road bridge joint (S), and the protruding tip (lower end) of the rubber draining material (18b). ) Is separated from the standing inner wall surface (1y) of the concrete slab (1).

  Further, as shown in the embodiment of FIGS. 33 and 34, the connecting plates (32a) and (32b) between the non-extrusion concave portions (r) in the both standing wall plates (12a) and (12b) are received by the post-cast concrete (C). The base plate (13a) (13b) which becomes the bottom and the joint clearance (D) are inserted into the joint clearance (D) by continuously bending forward as a substantially L-shaped (angle-shaped steel plate) facing the side of the joint clearance (D). The water-stopping material (14) and its back-up material or separate secondary water-stopping material (23) receiving floor plates (34a) and (34b) are formed, and the bent tips of both receiving floor plates (34a) and (34b) are formed. One set of metal draining materials (18a) and (18b) symmetrical in the longitudinal direction from the portion (front end portion) may be integrally suspended by welding or bonding.

  In this case, the pair of water-stopping material receiving floor plates (34a) and (34b) are formed along the road bridge joint portion (S) as a band plate state in a plan view with a certain folding width, as is apparent from FIG. It extends long in parallel. As shown in FIG. 34, as the steel plate (flat bar) that becomes the stud anchor (16a) (16b) for embedding the expansion joint (J6), two pieces with different thicknesses are fastened with a plurality of screws. It is also possible to detachably / replaceably assemble with the tool (35).

  FIGS. 35 and 36 show another embodiment different from FIGS. 33 and 34, in which a water-stopping material receiving floor plate (34a) folded into a continuous substantially L shape from the connection plate (32a) (32b) is shown. ) (34b) is bent into a staggered arrangement in plan view alternating with the base plates (13a) and (13b) serving as the bottom of the post-cast concrete (C) as a substantially trapezoidal shape in plan view as shown in FIG. The water stop material (14) which is distributed and is also interposed between the joint gaps (D) by the both receiving floor plates (34a) (34b) and the backup material or a separate secondary water stop material (23) are received. Be able to.

  A pair of symmetrical rubber drainers (18a) and (18b) is formed by connecting the non-projecting recesses (r) with the connecting plates (32a) and (32b) and the presser seat plates (20a and 20b). It is sandwiched between and fixed. The plurality of fixing screws (19a) (19b) are not shown.

  Furthermore, the road bridge joint (floor deck) (S) is widely designed from the new construction after March 2002 due to the revision of the road bridge specifications considering the seismic motion that may occur during the service period. However, as long as it stays in the above configuration of FIGS. 24 to 36, the standard width (M) of the expansion joint (J6) has a large dimension (rank) corresponding to the floor slab space (S). Up) expansion joints must be buried and used, and the necessary expenses for new construction will gradually increase.

  In this regard, FIGS. 37 to 44 show various partial modified embodiments that are useful as countermeasures for the above-described problem. In the embodiment of FIG. 37, both base plates serving as receiving bases for the post-cast concrete (C) in the expansion joint (J6) 13a) (13b) Only one of the base plates (13b) is continuously extended and extended by a certain length (L) from the non-projecting recess (r) of the standing wall plate (12b) to the rear side. As a result, the standard width (M) of the expansion joint (J6) is kept constant, and so to speak, using a lower-class expansion joint, the new construction work corresponding to the wide floor slab play space (S) of the road bridge It can be done. (36) is a rearward extending extension piece fixed to the base plate (13b) by welding or mounting brackets.

  38 to 42, the base plates (13a) and (13b) of the expansion joint (J6) are also separated from the non-projecting recesses (r) of the standing wall plates (12a) and (12b). By continuously extending and extending in the direction by a certain length (L1) and (L2), both base plates (13a) and (13b) and the rearward extending extension pieces (36a) and (36b) are formed integrally. .

  In the embodiment shown in FIGS. 37 and 38, a metal drainer (18a) (18b) that is symmetric or asymmetrical is welded to the rearwardly extending extension pieces (36a) (36b) of the base plate (13a) (13b) from below. 39 and 40, in the embodiment shown in FIGS. 39 and 40, a pair of metal draining materials (18a) and (18b) that are symmetrical in the longitudinal direction are moved to the lower positions of both standing wall plates (12a) and (12b). It is attached and fixed by welding, adhesion, or the like, or is suspended from the lower end portions of both standing wall plates (12a) and (12b) by a certain depth.

  41 and 42 corresponding to FIGS. 39 and 40, as shown in FIG. 41 and FIG. 42, the rubber drainer (18a) that is symmetrical in the back-and-forth direction and bent according to the meandering form of the joint clearance (D) (18a) One set of 18b) may be attached and fixed to the entire front surface where the two standing wall plates (12a) and (12b) face each other by bonding, vulcanization bonding, or the like, and as in the above embodiment of FIG. In addition, the effect of protecting the two standing wall plates (12a) and (12b) from rusting due to salt melting for snow melting in cold regions can be obtained by the rubber drainers (18a) and (18b).

  42, the reference numerals (37a) and (37b) are presser plates (flat bars) for the rubber draining materials (18a) and (18b), but a plurality of them are provided at the upper ends of both standing wall plates (12a) and (12b). By attaching and integrating them through the fixing screws (38a) and (38b), the upper end portions of the both standing wall plates (12a) and (12b) are reinforced without fear of unauthorized deformation.

  Further, in the embodiment of FIGS. 43 and 44, as in FIGS. 38 to 42, both the base plates (13a) and (13b) of the expansion joint (J6) are made to be the non-extending recesses (r) of both the standing wall plates (12a) and (12b). ) From the base plate (13) and the joint clearance (D). A pair of horizontal water-stopping material receiving floor plates (34a) (34b), a pair of horizontal height (depth) adjustment spacer plates (flat bars) extending along the road bridge joint (S) (39a) (39b) and a plurality of screw fasteners (40a) (40b), only the above-mentioned rearwardly extending extension pieces (36a) (36b) of both base plates (13a) (13b) It is attached and fixed from the side.

  Moreover, using the plurality of screw fasteners (40a) and (40b), the water-stopping material receiving floor plate (34a) is also applied to the rearward extending pieces (36a) and (36b) of the base plates (13a) and (13b). From one lower part of (34b), one set of rubber drainers (18a) and (18b) which are symmetrical in the longitudinal direction is attached and fixed.

  In this case, as apparent from FIG. 44, the pair of water-stopping material receiving floor plates (34a) and (34b) are substantially trapezoidal in a plan view, and the base plate (13a) ( 13b) is distributed overhanging in a zigzag arrangement state in plan view alternating with 13b), but according to the above embodiment of FIGS. 33 and 34, both water-stopping material receiving floor plates (34a) and (34b) have a fixed overhanging width. As a state of the band plate in a plan view having the above, it may be extended in parallel along the road bridge joint (S).

  In addition, since the other structure and construction method in 6th Embodiment shown in FIGS. 24-44 are substantially the same as the said 1st Embodiment of FIGS. 1-10, in FIGS. 24-44, FIGS. Only the corresponding reference numeral 10 is entered, and the detailed description thereof is omitted.

  Next, FIGS. 45 to 50 show a load-supporting expansion joint (J7) dedicated to a steel deck as a seventh embodiment of the present invention, and (41) is a horizontal filler that becomes a steel deck of a road bridge. A plurality of plates, from which a horizontal steel plate deck plate (43) is mounted via a vibration absorbing rubber plate (42) and rises from an upper flange (5) of a steel main girder (F) The stud bolt (44) and its fixing nut (45) are attached and integrated.

  Moreover, the front end portion (front end portion) of the deck plate (43) projecting forward on the road bridge joint portion (S) has a waveform, zigzag shape, or other meandering shape as shown in FIG. The expansion joint on the side of the concrete floor slab (1) facing the other side is cut out only on one side of the expansion joint (J6) according to the sixth embodiment, and the standing wall plate (12b) is the same. It is bent and formed in a meandering shape in a plan view as shown in FIG. 45, and an elastic water-stopping material (14) that can be stretched and interposed in the joint clearance (D) includes its standing wall plate (12b) and the deck plate (43 ) And fixed by adhesion or vulcanization.

  In the embodiment shown in FIGS. 45 to 48, the front end portion (front end portion) where the rubber plate (42) projects forward to the joint clearance (D) is made to function as a rubber draining material (18a) as it is. On the other hand, the rubber draining material (18b) which is an asymmetrical pair with the presser seat plate (20b) from the front or rear is provided only at least in the non-projecting recess (r) of the standing wall plate (12b). It is attached and fixed by a plurality of fixing screws (19b).

  Also, in the partially modified embodiment of FIG. 49 corresponding to FIG. 47, the upright wall plate (12b) is a horizontal base plate (13b) or a base plate (13b) projecting rearward, which will be the bottom of the cast concrete (C). The steel floor slab is formed by continuously hanging the fixed piece from the extension piece (36b) by a certain depth so that the drooping tip (projecting lower end) of the standing wall plate (12b) is a metal drainer (18b). It is shaped so as to be juxtaposed with the side rubber draining material (18a).

  Further, in the partially modified embodiment of FIG. 50, instead of the rubber draining material (18a) continuously and integrally projecting from the rubber plate (42) on the steel floor slab side, a forward projecting tip portion of the deck plate (43) ( A metal draining material (18a) is integrally suspended from the front end portion.

  And the draining material (18a) on the steel floor slab side and the standing wall plate (12b) on the concrete floor slab (1) side extend long in a straight line shape in plan view along the road bridge joint (S). is doing. The projecting lower end portion of the standing wall plate (12b) that hangs by a certain depth from the horizontal base plate (13b) can function as a so-called metal drainer (18b) of a direct type.

  In addition, since the other structure in 7th Embodiment is substantially the same as the said 1st Embodiment of FIGS. 1-10, only the corresponding code | symbol with FIGS. 1-10 is entered in the FIGS. 45-50. Detailed description thereof will be omitted.

  Next, FIG. 51 shows an expansion joint (J8) for a sidewalk (pedestrian bridge) of a road bridge as an eighth embodiment of the present invention. The water (A) can be guided and discharged by itself to the road bridge joint (S).

  That is, based on FIGS. 52 and 53, the sidewalk pavement asphalt (47) taller than the roadway pavement asphalt (3) is supported from below by the crushed stone roadbed (46). The water that penetrates from the road surface of the asphalt (47) into the roadbed (46) is blocked by the longitudinal gradient of the road bridge and the wall rail (48), and the concrete floor slab (1) is neutralized by the accumulated water. Then, the alkali component that has been melted out from this becomes free lime and hangs down in a so-called icicle shape, or rusts the embedded reinforcing bars and steel main girders (F) of the concrete slab (1). (49) is a curb.

  In order to prevent such problems, the sidewalk expansion joint (J8) in FIG. 51 is embedded in the back-placed concrete (C) as a back-to-back reverse parallel state into the roadbed mechanic (46). The joint clearance (D) is flat along the road bridge joint (S) as in the load-supporting expansion joints (J1) to (J5) of the first to fifth embodiments. It extends long in a straight line of vision.

  That is, the expansion joint for sidewalk (J8) is a pair of steel plate upright wall plates (12a) (12b) facing each other and the rearward direction away from each other from the upper end portions of the upright wall plates (12a) (12b). A pair of horizontal steel plate top plates (50a) and (50b) projecting from the upper side (preferably from the road surface) via a plurality of countersunk screws (51) to any one of the top plates (50a) A slide top cover (52) made of a horizontal steel plate or rubber plate, which is attached and fixed in a replaceable manner, and the top plates (50a) (50b) in a rearward direction away from both standing wall plates (12a) (12b). ) And a plurality of embedded stud anchors (16a) and (16b) extended continuously and longer than the slide top cover (5). ) And slides (forward and backward) the longitudinal direction of the upper surface of the other of the top plate remain (50b), and is able to absorb the expansion and contraction action of the road bridge.

  (53) is a communication between both standing wall plates (12a) and (12b) between the front and rear of the midway height position on the upstream side of the road crossing gradient and the lower surface of the roadbed work (46). A plurality of drainage pipes buried in the state, as shown by arrows in FIG. 51, seepage water (underflow water) (A) of the above-mentioned roadbed work (46) leaked water (W) from the joint gap (D) And can be pulled out and dropped onto the road bridge joint (S).

  And from the position below the opening part of the said drain pipe (53) in the one standing wall plate (12a), metal draining material (18a), such as an angle-shaped steel plate, is a road bridge joint part (S). And a tip portion that hangs down by a certain depth from the horizontal base plate (13b) that serves as the bottom of the post-cast concrete (C) in the other standing wall plate (12b). Leakage (W) and roadbed (46) that should fall from the joint gap (D) as a metal draining material (18b) with the lower end of the overhang forming a pair with the metal draining material (18a) The permeated water (A) extracted from the bridge does not reach the concrete floor slab (1) or the standing inner wall surface (1y) (2y) of the abutment (2) facing the road bridge joint (S). Neutralization and steel main girders So as not to lead to, such as rusting of F).

  In addition, even if one set of the draining materials (18a) and (18b) is made of rubber, the material of the one set is different, or the arrangement / shape of the one set is symmetrical or asymmetric. What is good is the same as the first to seventh embodiments. Since other configurations and construction methods in the eighth embodiment are substantially the same as those in the first embodiment, only the corresponding reference numerals to those in FIGS. 1 to 10 are entered in FIGS. The detailed explanation is omitted.

  In the first to eighth embodiments of the present invention shown in FIGS. 1 to 53, the concrete floor slab (1) and the abutment (W) where the water leakage (W) falling from the joint clearance (D) faces the road bridge joint (S) 2) A set of draining materials (18a) and (18b) that prevent transmission (contact) to the standing inner wall surfaces (1y) and (2y) are moved downward from the various expansion joints (J1) to (J8) themselves. A concrete floor that is integrally overhanged but in which the boxed recess (G) of the road bridge is cut out as shown in the ninth embodiment of FIGS. The metal or rubber drainer (180) (180a) (180b) is moved downward as a long extended state along the road bridge joint (S) from the plate (residual floor plate) (1) and the abutment (2). You may overhang it. Such construction can be effectively performed as a repair measure.

  In particular, from a concrete floor slab (remaining floor slab) (1) or abutment (2) from which the box recess (G) is cut out, a set of metal or rubber drainers (180a) (180b) While extending integrally downward, the various expansion joints (J1) to (J8) embedded in the boxed recess (G) are made of the metal shown as the configuration of the first to eighth embodiments or If one set of rubber draining material (18a) (18b) is attached, the superposed draining material (18a) (18b) (180a) (180b) of the upper and lower one set is used for the present invention. The intended purpose can be achieved more and more reliably, and the preventive maintenance effect of the road bridge will be doubled.

  In this respect, in the embodiment of FIG. 54, the concrete floor slab (remaining floor slab) in which the expansion joint burying box recess (G) is cut out is symmetrical to the upper surface (the bottom surface of the box recess). A pair of rubber or metal drainers (180a) (180b) and a pair of presser seat plates (20a) (20b) extending long along the road bridge joint (S), and a plurality of scattered distributions Each drive-it anchor (concrete nail) (54a) (54b) is attached and fixed from above. The protruding tip (lower end) of the draining material (180a) (180b) is in a relational state separated from the standing inner wall surface (1y) of the concrete floor slab (remaining floor slab) (1) by a certain distance (d1). Needless to say.

  Especially, the steel main girder (F) is taller than the concrete bridge, and it is limited to the steel bridge where the end stiffener (8) and the road bridge joint (floor space) (S) are wide. Since the worker enters the wide gap from below and can work on the site, one set of the above-mentioned symmetrical rubber or metal drainer (180a) (180b) is used as a concrete floor slab as shown in FIG. The bottom floor plate (1) may be attached and fixed from below with a pair of long presser plate (20a) (20b) and a plurality of drive-it anchors (54a) (54b).

  In addition, as shown in FIGS. 56 to 58, a set of symmetric rubber drainers (180a) and (180b) is driven to anchors (concrete nails) (54a) to a concrete floor slab (remaining floor slab) (1). (54b) and a pair of steel plate mounting bases (57a) fixed by stud bolts (55a) (55b) and fixing nuts (56a) (56b) depending on the upper flange (5) of the steel main girder (F) (57b), a plurality of fixed screws (19a) (19b), a pair of presser seat plates (20a) (20b), etc., the concrete floor slab (remaining floor slab) (1) and the abutment (2) You may attach and fix to the standing inner wall surface (1y) (2y) which faces a road bridge joint part (S). (58a) (58b) is a fixed distance (d1) (d2) separating the protruding tip of the draining material (180a) (180b) from the standing inner wall surface (1y) (2y) or the steel main beam (F). A pair of bending guides, reference numerals (59a) and (59b) in FIG. 58, indicate a cushion seat made of impermeable urethane foam.

  In particular, when the road bridge joint (floor space) (S) is a narrow road bridge, a pair of rubber plates (60a) and (60b) facing each other are permeable to urethane foam (61) and a sandwich as shown in FIG. Along with the rubber plates (60a) and (60b), a rubber draining material (180a) and (180b) symmetrical to the front and rear are integrally suspended, and the draining materials (180a and 180b) are attached. The two concrete rubber plates (60a) and (60b) are raised by the strong repulsive force (compression restoring force) of the urethane foam (61) to stand the concrete floor slab (1) and the abutment (2) facing the road bridge joint (S). You may attach and fix to the inner wall surface (1y) (2y) so that it cannot drop off.

  Further, cushion seats (59a) and (59b) made of a pair of impermeable urethane foams facing each other are bonded and integrated into the same water-permeable urethane foam (61) in a sandwich state as shown in FIG. It is attached to the concrete floor slab (1) facing the road bridge joint (S) and the upright inner wall surface (1y) (2y) of the abutment (2) by force (compression restoring force), and is fixed so as not to fall off. Along the vertical center line of the water permeable urethane foam (61), a plurality of draining materials (180) made of rubber pipes or metal pipes in which a large number of radial holes (62) are distributed are inserted at regular intervals from above. You may let them.

  A plurality of draining materials (180) scattered at regular intervals along the road bridge joint (S) are caused by the strong repulsive force (compression restoring force) of the urethane foams (59a) (59b) (61). Although it is fixed and held in a compressed state, even if such a configuration is adopted, the leaked water (W) should fall from the joint clearance (D) of the various expansion joints (J1) to (J8). The standing inner wall surface (1y) (2y) of the plate (1) or the abutment (2) and the steel inner girder (F), and the steel owner The draining material (180) separated from the girder (F) by a certain distance (d1) (d2) can be surely prevented.

  Next, FIGS. 61 and 62 show a tenth embodiment of the present invention. As will be apparent, the various expansion joints (J1) to (J8) of the first to eighth embodiments are replaced with new ones. During repair work, if the concrete floor slab (residual floor slab) (1) is severely damaged and thinned, remove this (residual floor slab) to a completely punched state. It is preferable to attach various expansion joints (J1) to (J8) to the upper flange (5) of the exposed steel main beam (F).

  (B) is an attachment joint for an expansion joint used for that purpose, and is a longitudinally symmetrical angle-shaped steel plate provided with horizontal grounding base pieces (63a) (63b) and vertical lifting guide pieces (64a) (64b). It extends long in the bridge width direction along the road bridge joint (S). In the illustrated example, the mounting mounts (B) are arranged side by side as two pairs of front and rear, but one of these wide continuous objects may be adopted.

  Then, the horizontal grounding base piece (63a) (63b) of the mounting mount (B) is attached and fixed to the upper flange (5) of the steel main girder (F) by welding or screw fasteners, 1 of the rubber draining material (180a) (180b) which is symmetrical in the longitudinal direction from the front (inside corresponding to the joint gap) with respect to the vertical lifting guide pieces (64a) (64b) forming the mounting mount (B). The set is attached and fixed by a pair of presser seat plates (20a) (20b) and a plurality of fixing screws (19a) (19b).

  In addition, the bending guide for separating the draining material (180a) (180b) by a fixed distance (d1) from the standing inner wall surface (reference number omitted) where the steel main girder (F) faces the road bridge joint portion (S) ( 58a) and 58b are integrally protruded forward from the elevating guide pieces 64a and 64b. The draining material (180a) (180b) may be made of stainless steel plate or other metal instead of the rubber shown.

  Also, a plurality of vertical stud anchors (such as reinforcing bars or screw rods) (65a) (65b) from the horizontal grounding base pieces (63a) (63b) of the mounting mount (B) as shown in FIGS. While standing up to a height position that can be three-dimensionally crossed with the embedded stud anchors (16a) and (16b) provided in the various expansion joints (J1) to (J8) of the first to eighth embodiments, From the standing wall plates (12a) (12b) of the various expansion joints (J1) to (J8) and the horizontal base plates (13) (13a) (13b), the lifting guide pieces (64a) (64b) of the mounting mount (B). The lifting leg pieces (66a) and (66b) that can be slid along the head are suspended integrally.

  Therefore, during the first repair work, the lifting leg pieces (66a) (66b) on the various expansion joints (J1) to (J8) side are lifted from the upper part of the road bridge joint (S) to the lifting guide piece (B) 64a) and 64b are inserted into the upper and lower (sliding) freely, and then the raising and lowering leg pieces (66a) and (66b) in the state where the installation height is adjusted, and the raising and lowering guide pieces on the mounting mount (B) side ( 64a) and (64b) are welded.

  Subsequently, the vertical stud anchors (65a) (65b) standing from the grounding base pieces (63a) (63b) of the mounting mount (B) are extended horizontally along the road bridge joint (S). It welds to a crossing state (17a) (17b) and a three-dimensional crossing state.

  In addition, a plurality of additional stud anchor planting stands (67a) and (67b) made of special angle-shaped steel plates, channel groove-shaped steel plates, and the like can be attached to the vertical stud anchors (65a) and (65b) as shown in FIGS. Pre-welding to a mid-height position and passing through the horizontal bars (17a) and (17b) horizontally to keep the planting bases (67a) and (67b) in a stable horizontal installation state. is there.

  Then, the old expansion joints (J1) to (J8) are removed upward from the lifting guide pieces (64a) (64b) of the mounting mount (B), and the vertical studs of the mounting mount (B) are removed. Next time the anchors (65a) and (65b) are cut from the height level indicated by the symbol (H-H) in FIG. 62, and the back-cast concrete (C) is scraped from the concrete floor slab (1) and the abutment (2). New repair joints (J1) to be replaced by planting and welding so that a new vertical stud anchor (not shown) is added to the horizontal surface of the planting frame (67a) (67b) at the time of repair work (J8) can be embedded in the concrete floor slab (1) and abutment (2) of the road bridge accurately and firmly, as in the first time, and it is outstanding for workability and convenience at the site. Excellent.

  In any case, as the various expansion joints (J1) to (J8) to be fixed to the upper flange (5) of the steel main girder (F) via the mounting mount (B), It is desirable to employ the drainage material (18a) (18b) shown in the eighth embodiment. Then, the steel main girder (180a) (180b) by the draining material (18a) (18b) on the various expansion joints (J1) to (J8) side and the draining material (180a) (180b) on the mounting mount (B) side. F) and shoe (bearing) (9) can be completely prevented from rusting, and the durability of the road bridge is significantly improved.

(1) ・ Concrete floor slab (1y) (2y) ・ Standing inner wall surface (2) ・ Abutment (3) (3x) ・ Pavement asphalt (4) ・ Web (5) ・ Upper flange (6) ・ Lower flange (7 ) ・ Longitudinal girder (8) ・ End stiffener (9) ・ Shoe (support)
(10)-Pier (11)-Height-adjusting mortar (12a) (12b)-Standing wall plate (13) (13a) (13b) (24)-Base plate (14)-Water-stopping material (15)-Backup Material (16a) (16b) Stud anchor (17a) (17b) Through thread (18a) (18b) (18c) (180) (180a) (180b) Drainage material (19a) (19b) Fixed screw ( 20a) (20b) · Presser seat plate (21a) (21b) · Bending guide (22a) (22b) · Reinforcing bar anchor (23) · Back-up material or secondary waterproofing material (25) · Post-cast concrete weir wall Plate (26) ・ Guide plate (rib anchor)
(27a) (27b) · Top plate (28) · Cutout groove (29a) (29b) · Water stop material receiving stopper piece (30a) (30b) · Fixing screw (31a) (31b) · Short reinforcing piece (32a) ) (32b) ・ Connecting plate (33) ・ Locking piece (34a) (34b) ・ Water stop material receiving floor plate (35) ・ Screw fastener (36) (36a) (36b) ・ Rearly extending extension piece of base plate (37a) (37b)-Presser plate (38a) (38b)-Fixing screw (39a) (39b)-Spacer plate (40a) (40b)-Screw fastener (41)-Filler plate (42)-Rubber plate ( 43) ・ Deck plate (44) ・ Stud bolt (45) ・ Fixing nut (46) ・ Roadbed (47) ・ Pavement asphalt on the sidewalk (48) Wall rail (49), curbstone (50a) (50b), top plate (51), countersunk screw (52), slide top cover (53), drainage pipe (54a) (54b), drive it anchor (concrete nail (55a) (55b) Stud bolt (56a) (56b) Fixing nut (57a) (57b) Mounting base (58a) (58b) Bending guide (59a) (59b) Cushion seat (60a) ( 60b), rubber plate (61), water permeable urethane foam (62), radiation hole (63a) (63b), grounding base piece (64a) (64b), lifting guide piece (65a) (65b), stud anchor (66a ) (66b)-Lifting leg piece (67a) (67b)-Planting stand (A)-Osmotic water (B)-Mounting mount (C)-Post-working conch (D), joint clearance (F), steel main girder (G), boxed recess (J1) to (J8), expansion joint (M), standard width of expansion joint (S), road bridge joint Department (floor board space)
(W) · Water leakage (L) (L1) (L2) · Overhang length (d1) (d2) · Constant distance (interval)
(F) ・ Forward projecting convex part (r) ・ Non projecting concave part (HH) ・ Height level

Claims (16)

  The floor drains whose overhanging end faces the road bridge joint or between the floor slab and the standing inner wall surface of the abutment are separated by a certain distance, and the expansion joint itself or / and the above floor slabs or floors. A leakage induction device for an expansion joint for a road bridge, characterized by preventing leakage of water leaking from a joint between the plate and the abutment and falling from the joint gap to the standing inner wall surface.   The water leakage induction device for a road bridge expansion joint according to claim 1, wherein the draining material is made of a rubber symmetrical or asymmetrical pair and the base end portion is attached and fixed to the expansion joint.   2. The road bridge according to claim 1, wherein the draining material is formed by projecting downward as a metal integrally formed with the expansion joint or attached to the expansion joint as a separate metal from the expansion joint. Water leakage induction device for expansion joints.   The drainage material is a rubber or metal symmetrical pair, and the base end of the drainage material stands on the top, bottom or road bridge joints of the concrete slab where the boxing recess for embedding the expansion joint is cut. The leakage induction device for an expansion joint for a road bridge according to claim 1, wherein the leakage induction device is fixed to the inner wall surface. A pair of parallel steel plate upright wall plates extending in a straight line in plan view along the road bridge joint portion of the expansion joint, and forming an overall substantially L shape in side view from one of the lower ends thereof As a load-supporting type consisting of a horizontal steel plate base plate continuously projecting in the rear direction and a plurality of embedded stud anchors continuously projecting in the rear direction away from both standing wall plates,
A pair of metal or rubber draining material from both standing wall plates or one of the standing wall plates and the other base plate, and the floor slabs with their protruding ends facing the road bridge joint or between the floor slab and the abutment 2. The leakage induction device for a road bridge expansion joint according to claim 1, wherein the device is extended integrally downward as a relational state separated from the standing inner wall surface by a predetermined distance. A pair of parallel steel plate upright wall plates that extend the expansion joint along the road bridge joint in a straight line in plan view, and a pair of horizontal steel plates that continuously protrude from the lower ends of both sides in the rearward direction. Load-bearing type formed into a generally L-symmetrical or asymmetrical substantially L-shape from a base plate made of a simple steel plate and a plurality of embedded stud anchors continuously projecting backward from the two standing wall plates. As that
A set of metal or rubber draining material from both standing wall plates or both plate plates, separated from each other by a fixed distance from the floor slabs whose overhanging end faces the road bridge seam, or from the standing inner wall of the abutment The leakage induction device for an expansion joint for a road bridge according to claim 1, wherein as a relational state, the downward extension is integrally extended. A pair of parallel steel plate standing wall plates that extend the expansion joint along the road bridge joint in a straight line in plan view, and a plurality of embeddings that continuously protrude from both standing wall plates in the backward direction away from each other As a load-supporting type consisting of a stud anchor for
A pair of metal or rubber drainers from both standing wall plates, with the overhanging tip facing the road bridge seam or between the floor slab and the standing inner wall of the abutment by a certain distance The water leakage induction device for an expansion joint for a road bridge according to claim 1, wherein the water leakage induction device projects integrally downward. Extending the expansion joint along the road bridge joint in a straight line in plan view, and a pair of parallel steel-made standing wall plates with a difference in height at the lower end, and the same overlapping each other from the lower ends From a pair of horizontal steel plate base plates with a difference in height that continuously project in the forward direction, and a plurality of embedded stud anchors that project continuously from the two standing wall plates in the rearward direction away from each other, As a load-supporting type shaped like a similar L-shape
A pair of metal or rubber drainers from the tip of both base plates, with the protruding tip facing the road bridge seam or between the floor and the standing inner wall of the abutment by a certain distance The water leakage induction device for an expansion joint for a road bridge according to claim 1, wherein the water leakage induction device projects integrally downward. A pair of parallel steel plate standing wall plates extending in a straight line in plan view along the road bridge joint, and a pair of horizontal joints continuously projecting forward from the upper ends of both of them It consists of a steel plate top plate and a plurality of embedded stud anchors that continuously protrude from the two standing wall plates away from each other in the rearward direction. As a load-supporting type that is cut out into a corrugated shape, sawtooth shape, and other meandering shapes extending along the section,
A pair of metal or rubber drainers from both standing wall plates, with the overhanging tip facing the road bridge seam or between the floor slab and the standing inner wall of the abutment by a certain distance The water leakage induction device for an expansion joint for a road bridge according to claim 1, wherein the water leakage induction device projects integrally downward. A pair of steel plate standing wall plates that are bent in a continuous meandering form in plan view in which expansion joints are projected on the road bridge joints with forward projecting projections and non-projecting recesses alternately, and from the lower ends of both A horizontal steel plate base plate that projects integrally in the rear direction away from each other and shields the open lower surface of the forward projecting convex portion, and a plurality of embeddings that continuously project from the two standing wall plates in the rear direction away from each other. As a load-supporting type consisting of a stud anchor for
Both standing wall plates, both base plates, or one standing wall plate and the other base plate, one set of metal or rubber draining material, and the floor slabs with their protruding ends facing the road bridge seam or the floor slab 2. The leakage induction device for an expansion joint for a road bridge according to claim 1, wherein the leaking guidance device is extended integrally downward as a relational state separated from the standing inner wall surface of the abutment by a certain distance. A pair of parallel connecting plates extending linearly in plan view along the road bridge seam are fixed and integrated from behind to the non-extending recesses of both standing wall plates,
11. A set of rubber drainers and a presser seat plate from the back are attached and fixed at least a fixed length corresponding to the non-extending concave portion in both of the connecting plates. Water leakage induction device for expansion joints for road bridges.   11. A road bridge according to claim 10, wherein one set of rubber draining material and a presser seat plate from the front thereof are attached and fixed only for a certain length corresponding to the non-extending recesses of both standing wall plates. Water leakage induction device for expansion joints.   A water-stopping material receiving floor plate that extends into the gap between each base plate and joint play from the lower end of both standing wall plates is integrally projected forward, and the protruding tip of the water-stopping material receiving floor plate functions as a draining material. The water leakage induction apparatus of the expansion joint for road bridges of Claim 10 characterized by these. While both base plates are continuously extended and extended by a certain length from the non-extending recesses of the standing wall plate to the back direction away from each other,
A pair of horizontal water-stopping material receiving floor plates that sink into the gap between the base plate and the joint play are attached and fixed from below only to the extension pieces of both base plates via horizontal spacer plates extending along the road bridge joints. ,
11. The road according to claim 10, wherein a pair of rubber drainers is attached and fixed to the extended extension pieces of both base plates from the lower side of the water-stopping material receiving floor plate, also using the fixing tool. Water leakage induction device for expansion joints for bridges. A horizontal filler plate that turns the expansion joint into a steel slab, and a tip that protrudes forward on the road bridge joint is cut into a corrugated shape, sawtooth shape, or other meandering shape in plan view, and to the filler plate A steel plate bent in a continuous meandering form in a plan view in which a horizontal deck plate attached and fixed via a rubber plate from above, and a forward projecting convex portion and a non-projecting concave portion on the road bridge joint portion alternate. A standing wall plate, a horizontal steel plate base plate that projects integrally from the lower end of the standing wall plate in the rear direction and shields the open lower surface of the forward projecting convex portion, and also from the standing wall plate in the rear direction As a load-supporting type consisting of a plurality of stud studs for embedding,
One set of rubber or metal draining material from the rubber plate or deck plate and the standing wall plate or base plate, and the slabs with their overhanging ends facing the road bridge joints or standing of the floor slab and the abutment 2. The leakage induction device for an expansion joint for a road bridge according to claim 1, wherein the device is extended integrally downward as a relational state separated from the inner wall surface and the steel main girder by a predetermined distance. A pair of parallel steel plate upright wall plates that extend the expansion joint along the road bridge joint in a straight line in plan view, and a pair of horizontal steel plates that continuously protrude from the upper ends of both sides in the rearward direction. A steel plate top plate, a horizontal steel plate or rubber plate slide top cover attached and fixed to either one of the top plates from above, and continuously stretched backward from both standing wall plates. As for the sidewalk consisting of multiple stud studs for embedding,
A pair of metal or rubber drainers from both standing wall plates, with the overhanging tip facing the road bridge seam or between the floor slab and the standing inner wall of the abutment by a certain distance The water leakage induction device for an expansion joint for a road bridge according to claim 1, wherein the water leakage induction device projects integrally downward.

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