KR101887937B1 - watertight type slip joint apparatus for bridge - Google Patents

Abstract

The present invention relates to a watertight flexible joint apparatus for a bridge, which comprises: a drainpipe hanging plate protruding upwards on a dead end of a lower flange of a fixing rod; and a drain board hanging plate protruding upwards in the lower flange between the drainpipe hanging plate and the fixing rod. Moreover, an upper end of the drainpipe hanging plate is arranged to be lower than that of the drain board hanging plate.

Description

[0001] The present invention relates to a watertight type slip joint apparatus for a bridge,

The present invention is characterized in that a drain trough hooking plate projected upward from an end of a lower flange of a fixing table and a drain plate latching plate protruding upward from a lower flange between the drain trough hooking plate and the fixing table are formed, Tight expansion joint for a bridge, which is disposed at a position lower than the upper end.

BACKGROUND ART Conventionally, a buried leak prevention device for a bridge capable of being replaced is known, for example, as disclosed in Patent Document 1 (Korean Patent No. 10-0936970).

1 to 3, an interchangeable leakage preventing apparatus for a bridge capable of replacing a bridge according to Patent Document 1 includes an auxiliary plate body 400 of an auxiliary drain plate 400 at a flow path 110 between the slab 100 and the slab 100 410 are inserted and the third support plate 430 formed on both sides of the auxiliary plate body 410 is inserted to be inserted into the insertion space 220 of the embedding frame 200.

The third gap retaining protrusion 440 protruding from the lower end of the third support plate 430 toward the inner side of the assisting plate body 410 is brought into close contact with the inner surface of the lower protrusion plate 240 of the embedding frame 200, The third inclined surface 420 formed on both sides of the upper protrusion 230 is positioned below the upper protrusion 230.

The auxiliary drain plate 400 is coupled to the insertion space 220 of the buried frame 200 and then the first drain plate 310 and the second drain plate 32 of the drain plate 300 are connected to both sides of the auxiliary plate body 410, .

At this time, it is preferable that the rear end of the first supporting plate 313 formed on both sides of the first drain plate main body 311 of the first drain plate 310 is cut like the second drain plate 320 to form the latching jaws 330 .

The first and second drain plates 310 and 320 can be inserted into the insertion space 220 of the embedding frame 200 on both sides of the flow field 110 and the upper or lower part of the flow field 110.

The rear end of the first drain plate 310 having the latching jaws 330 is inserted into the front end of the auxiliary drain plate 400 so that the latching jaws 330 of the first drain plate 310 are inserted into the third The front end of the second drain plate 320 is inserted into the rear end of the auxiliary drain plate 400 coupled to the first drain plate 310 and the front end of the second drain plate 320 is inserted into the rear end of the second drain plate 320, (330) is in close contact with the rear surface of the third support plate (430) of the auxiliary plate body (410).

The first and second drain plates 310 and 320 coupled to the front end and the rear end of the auxiliary drainage plate 400 are inserted into the front and rear ends of the auxiliary drainage plate 400 and the first and second slanted faces 312 and 322 ) Are in close contact with the upper portions of the third inclined surfaces 420 formed on both sides of the auxiliary plate body 410.

The auxiliary drainage panel 400 is connected to the first and second drainage panels 311 and 321 of the first and second drainage plates 310 and 320 coupled to the embedding frame 200 inclined at a predetermined angle The wastewater flowing into the auxiliary plate body 410 flows into the center of the first and second drain plate main bodies 311 and 321 through the center side of the first and second drain plate main bodies 311 and 321 and flows into the auxiliary plate body 410 through the auxiliary drain pipe 450 formed at the center, ) To the bottom.

However, because the linear auxiliary drainage plate 400 is sandwiched between the inclined first and second drainage plates 310 and 320, floating of the buried frame 200 occurs and water does not flow to the auxiliary drainage plate 400, .

In addition, water or the like may leak due to the gap between the auxiliary drain plate 400 and the first and second drain plates 310 and 320, and may leak without flowing into the auxiliary drain plate 400.

In order to prevent such a gap, sealing or welding is performed. However, when the drain pan or the like is to be replaced later for maintenance, a huge process for removing the whole is necessary.

On the other hand, in Fig. 11 described in Patent Document 2 (Korean Patent No. 10-1266118), a drainage trough 70 is supported by a bolt 26 below the buried frame.

However, the depth from the upper end of the bridge to the bolt 26 is too deep (for example, about 100 cm) so that it is difficult for human hands to enter, and the drainage trough 70 needs to be replaced.

Further, in order to bolt the drainage trough 70 to the buried frame, the buried frame is so deep that the buried frame is so deep that the concrete is not substantially filled or more than the predetermined concrete thickness It should be thick, but sometimes it does not match the construction site.

Patent Document 1: Korean Patent No. 10-0936970 Patent Document 2: Korean Patent No. 10-1266118

SUMMARY OF THE INVENTION It is an object of the present invention to provide a watertight expansion joint device for a bridge which is easy to maintain the drainage trough without changing the dimension of the fixed table.

In order to achieve the above-mentioned object, the watertight expansion joint according to claim 1 of the present invention is characterized in that, on the end face of the width (right and left) first slab of the bridge, a pair of right and left first fixtures ; A pair of left and right second fixing bars facing the first fixing bars and embedded in the end surfaces of the second slabs at the center thereof; Each of the first and second fastening bases comprising an upper flange, a lower flange, a web connecting the inner ends of the upper flange and the lower flange, A drain hole tongue hooking plate protruding upward from the lower flange so as to span between the first fixing table and the second fixing table, and a drain plate protruding upward from a lower flange between the web and the drain trough hooking plate, Wherein the upper end of the drain plate holding plate is higher than the upper end of the drain trough holding plate and the drain plate holding plate is protruded upward from the lower flange, And a water breaking protrusion is formed at an end of the horizontal gripping plate.

The watertight expansion joint according to claim 2 of the present invention is characterized by further comprising a separable lid for opening and closing the drain plate insertion passage between the upper flange and the drain plate engaging plate and a supporting member for supporting the separable lid to the fixing table Wherein the support member includes a support flange protruding horizontally from a web below the upper flange so as to form a fitting protrusion formed on the detachable cover and a locking protrusion and a fitting groove into which the fitting protrusion is inserted; And a locking protrusion formed on the locking protrusion.

In the watertight expansion joint device for bridges according to the third aspect of the present invention, a waterproof pad for pressing the drain plate holding plate is further provided at a lower end of the detachable lid, wherein the waterproof pad has a rail protrusion Wherein the hollow pressing pad has a shape that narrows downward as it goes down, and an inner side of the hollow pressing pad is formed as an inner circular arc inclined surface inclined toward the outer side as it goes down, The outer side of the hollow pressing pad is formed as an inclined outer inclined surface that is inclined toward the inner side as it goes downward and is inclined toward the outer side.

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The present invention has the following effects.

By arranging the drain trenches and the drain trenches in such a manner that the drain trenches and the drain trenches are laid over the drainage tether holding plate and the drain trench holding hook plate spaced apart from each other on the lower flange of the fixing table while supporting the bottom of the drain plate, There is no fear of leaking into a gap, not a sandwich structure, and it is very easy to replace (maintain) the drainage trough because it is simply laid over.

The detachable lid is attached to and detached from the fixing table by the fitting protrusion, the fitting groove, the locking protrusion, and the latching jaw, thereby eliminating the necessity of fastening with bolts or the like, It is very easy to replace the drain plate because it is possible to pull it out to the front and rear sides without removing the detachable cover to the space.

When the waterproof packing is lowered, the width becomes narrower, and when the separable cover is inserted or removed, the waterproof packing can reduce the friction area according to the force pressing the drain plate.

In addition, the center of the waterproof packing is biased to one side, and the inner side is formed as the arc inclined face while the outer side is formed as the inclined side face, so that the waterproof packing naturally presses the drain plate to press the drain plate so as to further reduce the friction area.

In addition, when the waterproofing pad is aged, water is drained into the gap between the drain plate and the horizontal hooking plate by the water splashing protrusion formed at the end of the drain plate hooking plate, and the drainage trough It acts as a water breaker to let it fall.

In addition, two fixing bolts for fixing the fixing table are installed on the fixing table to prevent the vertical movement of the reinforcing bars due to impact when the concrete mortar is poured.

Further, the waterproof packing is provided between the upper flange and the fitting projection to prevent the rainwater from riding into the fixed frame.

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
FIG. 2 is an exemplary view showing a state in which the drain pan and the auxiliary drain pan of FIG. 1 are coupled.
3 is a cross-sectional view of the drain pan and the auxiliary drain pan of FIG. 1 combined;
4 is a side view of a watertight expansion joint for bridges embedded in a slab according to a preferred embodiment of the present invention.
5 is a sectional view taken along line 5-5 of Fig.
FIG. 6 is a side view of the final rail installed and completed in FIG.
FIGS. 7 and 8 are sectional views of the fixing stand and the separable cover shown in FIG.
Fig. 9 is a side view showing the main part of Fig. 4; Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

4 is a side view of a watertight type expansion joint apparatus for a bridge according to a preferred embodiment of the present invention, which is embedded in a slab, FIG. 5 is a sectional view taken along line 5-5 of FIG. 4, FIGS. 7 and 8 are sectional views of the fixing plate and the separable cover shown in FIG. 4 in a separated and combined state, and FIG. 9 is a side view showing a main part of FIG.

4 to 6, the watertight expansion joint device for a bridge according to the present embodiment includes a first fixing table 10 and a second fixing table 10 ', a first fixing table 10 and a second fixing table 10' And a drain trough 50 disposed between the first fixing table 10 and the second fixing table 10 'and disposed at the lower center of the space between the drain plates 30.

The first fixing table 10 and the second fixing table 10 'are embedded in the end surfaces of the first slab 1 and the second slab 2.

That is, as shown in FIG. 5, the first fixing table 10 includes a first left slab 1a and a second right slab 1b which are sloped toward the center with respect to the width (right and left) of the bridge, A pair of left and right first and second left and right fixing brackets 10a and 10b embedded in a state of being embedded in the left and right right and left fixing brackets 10a and 10b, respectively.

Similarly to the first fixing table 10, the second fixing table 10 'is also disposed at the center of the end surfaces of the second left slab 2a and the second right slab 2b, which have a gradient toward the center with respect to the width And a pair of right and left second left and right fixing brackets 10a 'and 10b' that are embedded in a joint.

Since the first fixing table 10 and the second fixing table 10 'have the same shape, reference numerals are assigned to the first fixing table 10 and the second fixing table 10' 10 " is given as "

7 and 8, the fixing table 10 includes an upper flange 11, a lower flange 12, a web 13 connecting the inner ends of the upper flange 11 and the lower flange 12, A drain trough hooking plate 14 which protrudes upward from the lower flange 12 and on which the drain trench 50 is wound and a lower flange 12 between the web 13 and the drain trough hooking plate 14, And a drain plate holding plate 15 on which the plate 30 is wound.

At this time, the upper end of the drain plate holding plate 15 is positioned higher than the upper end of the drain trough holding plate 14.

A drainage trough insertion space 16 in which both ends of the drainage trough 50 are placed is formed between the drainage plate holding plate 15 and the drainage trough holding plate 14.

A drainage trough insertion passage 17 communicating with the drainage trough insertion space 16 is formed between the upper end of the drainage plate engaging plate 15 and the upper end of the drainage trough holding plate 14.

Of course, a drain plate insertion space 11a in which both ends of the drain plate 30 are placed is formed inside the space between the upper flange 11 and the drain plate holding plate 15.

A drain plate insertion passage 11b communicating with the drain plate insertion space 11a is formed between the upper end of the upper flange 11 and the upper end of the drain plate holding plate 15.

The drain plate hook plate 15 includes a lower protrusion 15a projecting upward from the lower flange 12 and a horizontal hook plate 15b extending horizontally outward from the lower protrusion 15a.

At this time, a water breaking projection 15c is formed at the end of the horizontal engaging plate 15b.

The water cut-off projection 15c is an isosceles triangle having a pointed downward point.

The water flowing along the water cut-off protrusion 15c falls directly into the drainage trough 50 without falling into the drainage trough insertion space 16 on the horizontal hook plate 15b.

The horizontal hooking plate 15b is used to maintain the horizontal hanging of the drain pan 30 and the pressure transmission of the waterproof pad 90.

On the outside of the web 13, a bolt bracket BB to which a fixing bolt B is fixed is disposed on the top and bottom.

The fixing bolt (B) is fixed to the reinforced bar.

Therefore, the bolt bracket (BB) is placed up and down in order to prevent the vertical movement of the reinforcing bar due to impact when the concrete mortar is poured.

The drain plate (30) is installed and disposed in the flow field (110) between the first slab (1) and the second slab (2).

That is, the drain plate 30 has a left drain plate 30a extending between the first left fixing base 10a and the second left fixing base 10a 'and a left drain plate 30b extending between the first right fixing base 10b and the second right fixing base 10b' And a right-side drain plate 30b which extends over the right-side drain plate 30b.

Since the left and right drain plates 30a and 30b have the same shape, only the drain plate 30 will be described.

The drain plate 30 includes a drain plate main body 31, a horizontal bent plate 33 bent outward from both upper ends of the drain plate main body 31 and a vertical bent plate 35 bent downward from the horizontal bent plate 33, As shown in FIG.

The drain plate main body 31 is formed by bending a side plate 31a and a connecting plate 31b connecting the lower ends of the side plates 31a.

It is preferable from the viewpoint of strength that the connecting plate 31b is bent in a downward convex circular arc shape.

The horizontal bent plate 33 is laid over the horizontal hook plate 15b.

The vertical bent plate 35 is placed in the drain plate insertion space 11a.

The drainage trough 50 includes a drainage trough main body 51, an upwardly inclined plate 53 bent outward from both upper ends of the drainage trough main body 51, And the bent plate 55 are integrally formed.

The drainage trough main body 51 includes a side plate 51a and a connection plate 51b connecting the lower ends of the side plate 51a and a drainage tank 51c formed at the center of the connection plate 51b.

The connection plate 51b is formed so as to be inclined downward toward the drainage tank 51c.

A drain pipe is connected to the lower end of the drain tube 51c.

The fixing table 10 further includes a detachable lid 70 for opening and closing the drain plate inserting passage 11b and a supporting member 80 for supporting the detachable lid 70 on the fixing table 10.

The support member 80 is formed in the lower flange 11 of the upper flange 11 so that the fitting protrusion 81 formed in the separable cover 70 and the fitting protrusion 81 and the fitting protrusion 81 are formed. A support flange 85 protruding horizontally from the web 13 and a retaining protrusion 87 formed on the lower surface of the support flange 85 and engaged with the retaining protrusion 83. [

The fitting protrusion 81 includes a first fitting protrusion 81a and a second fitting protrusion 81b branched from the first fitting protrusion 81a.

That is, the first fitting protrusions 81a and the second fitting protrusions 81b are arranged in parallel to each other. When the second fitting protrusions 81b are disposed on the upper side and fitted into the fitting groove 82, 81b by elastic compression.

The second fitting protrusion 81b protrudes horizontally outward from the tip of the vertical protrusion 81c branched upward in the middle of the first fitting protrusion 81a.

The tip end portions of the first and second fitting protrusions 81a and 81b are formed in a streamlined shape to be fitted into the insertion groove 82 well.

The latching protrusion 83 protrudes upward from the distal end of the cantilever-like shape so as to be resiliently deformable to the detachable lid 70.

That is, the latching protrusion 83 includes an elastic cantilever 83a extending downwardly from the detachable lid 70 and an upper latching claw 83b protruding upward from the end of the elastic cantilever 83a.

The lower surface of the support flange 85 is gradually thickened to the lower stopping jaw 87 so that the upper stopping jaw 83b is caught.

Therefore, the upper engagement hook 83b of the engagement projection 83 is elastically deformed downward through the lower surface of the support flange 85, so that the reaction force is lost at the lower engagement hook 87,

The detachable cover 70 is very easy to attach and detach due to the support member 80.

The horizontal length of the support flange 85 is shorter than the horizontal length of the upper flange 11. [

This short distance is on the same line as the entire outer side of the fixing table 10 when the removable cover 70 is fitted.

A waterproof seal 89 is provided between the lower end surface of the upper flange 11 and the upper outer surface of the separable lid 70 to prevent rainwater from entering.

The waterproof seal 89 is mounted on the detachable cover 70 and the mounting grooves 89a and 89b formed in the upper flange 11.

A detachable cap 70 is fixed with a cap nut 71 clogged on one side and a maintenance eye bolt 73 is fastened to the cap nut 71.

The eye bolts (73) are pulled out from the side by using a small manual winch, and then the drain board (30) is replaced when a tension wire is provided for dismantling during maintenance.

At the lower end of the detachable lid 70, a waterproof pad 90 for pressing the drain plate holding plate 15, particularly the horizontal holding plate 15b, is further provided.

The waterproof pad 90 is composed of a rail protrusion 95 and a hollow pressing pad 91 which are fitted in the rail groove 75 at the lower end of the separable lid 70.

The rail projections 95 are T-shaped, and the rail grooves 75 are open end hollow members into which the T-shape is fitted.

Here, the hollow shape includes both a shape that is opened along the length or a hollow shape.

The hollow pressing pad 91 has a shape that becomes narrower as it goes down.

That is, the inside of the hollow pressing pad 91 is formed of an inner arc inclined surface 92 inclined toward the outer side as it goes downward.

The inner arc inclined surface 92 further has a leg-shaped projection 92a.

Accordingly, a pressing is formed between the projection 92a and the lower end point 90a.

The outer side of the hollow pressing pad 91 is formed as an inclined oblique outer surface 93 which is inclined towards the inside as it goes downward, and is inclined toward the outside.

The first tilted inclined surface 93a has a first tilted inclined surface 93a inclined toward the inside as it goes down from the top and a second tilted inclined surface 93b inclined toward the outside as it goes down from the first tilted inclined surface 93a. .

The lower end where the inner arc inclined surface 92 meets the outer tortuous inclined surface 93 is eccentric to the outer side with respect to the vertical line c.

Since the waterproof pad 90 having such a shape naturally presses the horizontal bent plate 33, the sealing can be performed well, and a large frictional force is not applied when the separable lid 70 is removed later, so that the waterproof pad 90 tends to fall off.

As described above, the present invention has been described with reference to the water-tight type drainage device for a bridge expansion joint device, which is a preferred embodiment of the present invention. However, the present invention is not limited to the above- It will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the present invention.

1 and 2: first and second slabs 10 and 10 '
11: upper flange 11a: drain plate insertion space
11b: Drain plate insertion passage 12: Lower flange
13: web 14: drainage trough girder needle plate
15: Plumbing board for drainage plate 15a:
15b: Horizontal clamping plate 15c: Water breaking projection
16: drainage trough insertion space 17: drainage trough insertion path
30: Drain plate 31: Drain plate body
33: Horizontal bending plate 35: Vertical bending plate
50: drainage trough 51: drainage trough main body
53: upward inclined bent plate 55: vertical bent plate
70: detachable cover 71: cap nut
73: Eye bolt 75: Rail groove
80: support member 81: fitting projection
82: fitting groove 83:
85: Support flange 87: Lower jaw
89: waterproof seal 89a, 89b: mounting groove
90: Waterproof pad 90a: Lower end point
91: hollow pressing pad 92: inner arc inclined surface
92a: Leg-like projection 93: Outside tilted inclined surface
95: rail projection 110:
B: Fixing Bolt BB: Bolt Bracket

Claims (4)

A width of the bridge (left and right), a pair of left and right first fixtures embedded in the center at the end face of the first slab;
A pair of left and right second fixing bars facing the first fixing bars and embedded in the end surfaces of the second slabs at the center thereof;
And a left and right drain pan extending between the first fixing base and the second fixing base,
Wherein each of the first and second fixing legs comprises an upper flange, a lower flange, a web connecting the inner ends of the upper flange and the lower flange, a drain gutter extending upwardly from the lower flange so as to span between the first and second fixing bases And a drain plate holding plate protruding upward from the lower flange between the web and the drain trough holding plate,
The upper end of the drain plate holding plate is higher than the upper end of the drain trough holding plate,
Wherein the drain plate holding plate includes a lower stone plate projecting upward from the lower flange and a horizontal holding plate extending horizontally outward from the lower stone plate,
And a water breaking protrusion is formed at an end of the horizontal gripping plate.
The method according to claim 1,
A separating lid for opening and closing a drain plate inserting passage between the upper flange and the drain plate engaging plate; and a supporting member for supporting the separating lid to the first and second fixing rods,
The support member may include a support flange protruding horizontally from a web below the upper flange so as to form a fitting protrusion formed on the detachable lid, a locking protrusion, and a fitting groove into which the fitting protrusion is inserted; And a hooking jaw which is engaged with the hooking protrusion.
The method of claim 2,
A waterproof pad for pressing the drain plate holding plate is further provided at the lower end of the detachable lid,
Wherein the waterproof pad comprises a rail projection and a hollow pressing pad fitted to the lower end of the separable cover,
The hollow pressing pad has a shape that becomes narrower as it goes down,
The inner side of the hollow pressing pad is formed as an inner circular arc inclined surface inclined toward the outer side as it goes down,
Wherein the outer side of the hollow press pad is formed as an inclined outer inclined surface that is inclined toward the inner side as it goes downward and is inclined toward the outer side.
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