KR102521778B1 - Posted Bridge with File Reinforcement Cap - Google Patents

Abstract

A deck material non-fastening clip for fixing is disclosed. The clip for non-fastening deck material according to the present invention is a clip for coupling each deck material of a deck rod to the upper surface of a square tube in a non-fastening manner, the clip having a through hole formed vertically and the upper surface of the square tube A fixed portion formed with a predetermined length, height and width to be seated on; The seating groove extends in a curved arc downward from both edges of the upper end of the fixing part in an arc shape, forms a deformation space between the fixing part and has its own elasticity, and is formed concavely on the side surface of the deck material. It is characterized in that it is configured to include a pair of pressing pieces for pressing while being inserted into.

Description

Posted Bridge with File Reinforcement Cap {Posted Bridge with File Reinforcement Cap}

The present invention relates to a support type footbridge equipped with a pile reinforcement cap, and more particularly, it is possible to prevent damage to wooden deck materials and prevent deformation by fixing deck materials of a deck rod to a square tube in a non-fastening manner. In addition, regardless of the type of pile such as PHC pile or steel pipe pile, the upper end of the pile can be reinforced using the prefabricated pile reinforcement cap and at the same time, the compulsory coping can be quickly connected, and the compulsory coping and reinforcement As the cab is connected by a number of inclined brackets, the length of the span for each span subjected to the bending moment is reduced to reduce the member height, and the cross-sectional performance is improved by arranging reinforcing girders on the main girder at the point where a large bending moment occurs. It relates to a support type footbridge equipped with a pile reinforcement cap that can be made.

In general, bridges are recognized as civil structures such as overpasses constructed on railways and roads or bridges constructed across rivers. These bridges are composed of abutments, piers, and superstructures consisting of girders and decks installed over them. do.

In addition, bridges are divided into simple bridges, continuous bridges, Gerber bridges, truss bridges, slab bridges, arch bridges, ramen bridges, suspension bridges and cable-stayed bridges according to the type of superstructure.

Recently, it is a trend that many facilities for jogging or riding bicycles are installed along rivers or streams. To this end, it is necessary to secure sufficient space because it must be installed on the ground on the river or riverside.

However, in places where roads are inevitably disconnected due to the conditions of the surrounding terrain, bridges must be installed to connect the disconnected roads, and in some cases, bridges are installed along rivers from the beginning.

In this way, a bridge installed in a river or the like so that people and bicycles can walk and run is commonly referred to as a footbridge.

As a prior literature on footbridges, Korean Patent Registration No. 10-1383208 (published date: 2014. 04.09) discloses 'sidewalk and bicycle bridges and their construction methods'. As shown in FIG. 1, the sidewalk and bicycle bridges according to the prior art include a PHC pile 10, a reinforcing cap 20 coupled to the top of the pile 10, and a reinforcing cap 20 It is configured to include a housing deer 30 coupled to the top of the housing, an upper structure 40 coupled to the top of the housing unit 30, and handrails 50 installed on both edges of the upper structure 40.

However, the sidewalk and bicycle bridges of this structure were difficult to construct because the piles supporting the top plate (girder) were composed of two. That is, there was a problem in that construction difficulties occurred because the main girder had to be placed and combined by matching the heights of the reinforcing caps coupled to the two piles on both sides.

On the other hand, a deck is provided on the upper structure of the footbridge so that users can safely walk.

The deck was constructed by arranging a plurality of natural timbers in the width direction and then directly penetrating and fastening each natural timber to the upper structure of the footbridge with screws.

In this way, damage such as widening of natural wood occurred due to direct connection construction in which screws penetrated natural wood and fixedly coupled, and rust occurred when metal screws were exposed to rainwater, resulting in reduced durability and damage to aesthetics. there was. In addition, since the screw is fastened to the square pipe through the deck material, even if the deck material shrinks and expands in the width direction, it could not be prevented, and due to this, there was a problem in that the deck material could not maintain its original shape.

. Republic of Korea Patent No. 10-1383208 (Announcement date: 2014. 04.09)

An object of the present invention is to improve workability by indirectly and conveniently fixing a deck material made of natural wood on the upper surface of a deck rod by indirectly fixing it using a clip without directly fastening it by penetrating the deck material with screws. In addition to being able to do it, it is possible to minimize damage to the deck material and to provide a means that can prevent deformation due to contraction and expansion.

Another object of the present invention is to reinforce the top of the pile constituting the footbridge using a prefabricated pile reinforcement cap regardless of the type of pile, such as a PHC pile or a steel pipe pile, and at the same time quickly connect the compulsory coping, In addition, it is possible to reduce the height of members by reducing the span length for each span subjected to bending moment, and to provide a means to improve the cross-sectional performance of the supporting part where a large bending moment occurs.

A support footbridge equipped with a pile reinforcement cap according to an example of the present invention includes a pile installed vertically on the ground, a reinforcement cap installed on top of the pile, a steel coping provided on the reinforcement cap, and the steel coping A main girder including a pair of beam members installed in parallel to the upper surface of and each cross beam connecting each beam member on both sides, and a clip on the upper surface of each of the beam members and each of the square tubes provided on the upper surface of the cross beam It includes a deck rod made of a deck material constructed in a non-fastening manner by, and the reinforcing cap is composed of each cap member divided into 2 to 4 pieces having an accommodating part for wrapping and accommodating a part of the upper end of the pile and assembling each other. And, the steel coping is divided so that each lower end is coupled to the outer circumferential surface of each cap member and coupled to the upper end of each support bracket installed inclined upward and outward to be integrated with each of the cap members, and the cross beams, respectively Doedoe both ends are coupled to each of the beam members by a connecting bracket of, the connecting bracket, a fixed end fixed to the beam member; And a coupling end extending in the horizontal direction from the fixed end and coupled to the end of the crossbeam, the clip having a through hole formed vertically and having a predetermined length, height and width seated on the upper surface of the square tube. A fixing part formed of; The seating groove extends in a curved arc downward from both edges of the upper end of the fixing part in an arc shape, forms a deformation space between the fixing part and has its own elasticity, and is formed concavely on the side surface of the deck material. It may be characterized in that it is configured to include a pair of pressing pieces for pressing while being inserted into.

The fixing part may be fixed to the square tube by a fixing screw fastened to a fastening plate provided inside the square tube through the through hole.

The fastening plate may further include a plate spring for reinforcing fastening force of the fastening screw by elastically supporting the fastening plate by generating elasticity when fastening the fastening screw.

A long hole may be formed on the upper surface of the square tube along the longitudinal direction to change the position of the fixing part in a state in which the fixing screw penetrating the fixing part is fastened to the fastening plate.

A portion of both support ends of the long hole may be bent downward to form a reinforcing end.

A discharge groove connected to the through hole may be formed on a bottom surface of the fixing part in a direction perpendicular to a longitudinal direction of the fixing part.

In the cap member, a flange having first fastening through-holes may be formed in an area in contact with each other, and reinforcing ribs may be respectively provided between the flange and the body.

Inside the reinforcing cap, an elastic pad is disposed between the upper end of the pile and absorbs shock, and the elastic pad may be configured by vulcanizing and integrating a steel plate and a rubber material alternately.

The steel coping is divided into “c”-shaped first and second coping members consisting of a coupling portion and connecting portions extending parallel to each other at both ends of the coupling portion, and each connecting portion of the first and second coping members is connected. The plates may be joined to each other to form a rectangle.

A pair of reinforcing girders may be respectively provided between the first and second coping members and each of the beam members.

The reinforcing girder is composed of an upper coupling portion coupled to the bottom surface of the beam member and a lower coupling portion coupled to upper surfaces of the coupling portion of the first and second coping members, and the lower coupling portion has a length equal to the length of the coupling portion. It may be formed shorter than the upper coupling portion.

According to the present invention, by fixing the deck material to be installed on each pipe with a clip, it is possible to provide an effect of preventing damage to the deck material and deformation due to contraction and expansion, and not penetrating the deck material with screws to fix the deck material. As a result, it is possible to provide the effect of securing the safety of pedestrians.

In addition, regardless of the type of pile, such as PHC pile or steel pipe pile, the prefabricated pile reinforcement cap is put on the top of the pile to reinforce the top of the pile and at the same time provide the effect of quickly connecting the compulsory coping. can

In addition, since the pile reinforcement cap is prefabricated, transportation is simplified, and since the pile reinforcement cap and the steel coping are provided with reinforcing support brackets, the span length for each span subjected to the bending moment is reduced, thereby reducing the height of the member. there is.

In addition, by doubly reinforcing the beam at the point where a large bending moment occurs, it is possible to provide an effect of improving sectional performance.

In addition, since the reinforcing cap, the steel coping, the reinforcing member and the main girder are prefabricated, it is possible to provide an effect of simplifying transportation and storage of each member.

1 is a perspective view showing a deck rod according to the prior art.
2 is an exploded perspective view showing a deck rod to which a clip according to the present invention is applied, a partially exploded perspective view and an enlarged cross-sectional view for explaining a state in which a deck material is fixed by a clip.
3 and 4 are perspective views of the clip shown in FIG. 2;
5 and 6 are cross-sectional views showing a state in which the deck material is fixed by the clip shown in FIG. 2 .
7 is a view showing a state in which the clip shown in FIG. 2 is coupled to each tube, and FIG. 8 is a view showing a state in which deck materials are coupled and constructed by the clip shown in FIG. 2, respectively.
FIG. 9 is an exploded perspective view showing a support type footbridge equipped with a pile reinforcing cap shown in FIG. 2;
10 is an exploded perspective view showing a steel coping integrated with the pile reinforcement cap of the pillar-type footbridge equipped with the pile reinforcement cap shown in FIG. 9.
11 is a perspective view showing a steel coping integrated with the pile reinforcement cap shown in FIG. 3;
12 (a) and (b) are exploded perspective views showing the main girder, upper girder, and reinforcing girder of the pillar-type footbridge equipped with a pile reinforcing cap shown in FIG. 9 and showing a connection bracket according to another embodiment This is an enlarged cross-section.
13 to 16 are perspective views showing the support-type footbridge equipped with the pile reinforcing cap shown in FIG.
17 and 18 are perspective views illustrating a state in which wooden handrails and steel handrails are applied to the footbridge equipped with pile reinforcement caps shown in FIG. 2 .

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing the present invention, descriptions of already known functions or configurations will be omitted to clarify the gist of the present invention.

Among the accompanying drawings, FIG. 2 is an exploded perspective view showing a deck rod to which a clip according to the present invention is applied, and is a partially exploded perspective view and an enlarged cross-sectional view for explaining a state in which a deck material is fixed by a clip, and FIGS. 3 and 4 are It is a perspective view showing the clip shown in FIG. 2, and FIGS. 5 and 6 are cross-sectional views showing a state in which the deck material is fixed by the clip shown in FIG. And, FIG. 7 is a view expressing a state in which the clip shown in FIG. 2 is coupled to each tube, and FIG. 8 is a view expressing a state in which the deck material is coupled and constructed by the clip shown in FIG. 2, respectively.

2 to 8, the deck material non-fastening clip 820 according to the present invention is to combine each deck material 810 of the deck rod 800 to the upper surface of the square pipe 700 in a non-fastening manner. can

This will be described in more detail.

The deck rod 800 to which the clip 820 is applied has a structure in which each deck material 810 is fixed to the upper surface of the square pipe 700 by the respective clips 820, and is made of natural wood or the like. It consists of deck materials 810 arranged in the width direction on the upper surface of each tube 700, and respective clips 820 fixing each deck material 810 to each tube 700. And, at both edges of the deck rod 800, handrails 880 may be installed outside the beam members 510 to protect pedestrians walking in the walking space (see FIG. 17).

The deck material 810 is installed on the upper surface of each pipe 700 to provide a walking space for pedestrians, and has a plate shape made of natural wood having a predetermined thickness, width, and length. On the upper surface of the deck material 810, protrusions for preventing slipping are formed long in the longitudinal direction, and seating grooves 814 are formed concavely along the longitudinal direction on both side surfaces in the width direction. The seating grooves 814 on both sides are for inserting the pressing pieces 822 formed on both sides of each clip 820 from both sides, respectively, and are formed in the same shape as the outer surface of the pressing pieces 822.

Since the deck material 810 is supported elastically by inserting the pressing pieces 822 of each clip 820 into the seating grooves 814 on both sides, respectively, to the square tube 700 without a separate fastening means, that is, in a non-fastening manner. It can be firmly fixed.

The clip 820 for fixing the deck material 810 to the square tube 700 is for fixing the deck material 810 to the square tube 700 in a non-fastening manner.

The clip 820 is formed with a predetermined width, height and length, and has a through hole 824A formed vertically in the middle, and a fixing part 824 seated on the upper surface of the square tube 700, and a fixing part 824 ) Is extended in a curved arc shape downward from both edges in the longitudinal direction of the top, respectively, to form a deformation space (S) between the fixing part 824, each having its own elasticity, and concave on the side of the deck material 810 It is configured to include a pair of pressing pieces 822 for pressing while being inserted into the seating groove 814 formed to be formed.

The pressure piece 822 is gradually formed thicker toward the upper end of the fixing part 824 from the end. This is to respond to the contraction and expansion of the deck material 810 while the pressing piece 822 generates a solid supporting force and is deformed when the deck material 810 contracts or expands. In addition, since the end of the pressing piece 822 is formed thinner than the upper end of the fixing part 824, it is to generate a greater elastic force when a large load is applied. As such, the deck material 810 can be firmly pressed and supported with a stronger supporting force as it is gradually formed thicker from the end of the pressing piece 822 toward the fixing part 824 .

In addition, the pressing pieces 822 are formed on both sides of the upper portion of the fixing part 824 in opposite directions, so that the deformation space S is formed between both sides of the fixing member 824 and both pressing pieces 822, respectively. . Since the deformation space (S) is formed between both sides of the fixing member 824 and the pressing pieces 822 on both sides, each pressing piece 822 is sufficiently deformed during contraction and expansion of both deck materials 810 according to temperature change. can become In addition, since each pressing piece 822 can be elastically deformed, even when the deck material 810 contracts and expands, the pressing piece 822 does not depart from the seating groove 814 and is stably inserted into the pressing state. can keep

The pressing piece 822 is formed in an elastic arc shape, so that the deck material 810 can be inserted by pressing it from the upper side to the lower side, and can be pulled out upward when the deck material 810 is damaged during use. In addition, the upper part where both pressing pieces 822 and the fixing part 824 meet is formed in a gentle arc shape, that is, in a gentle arc shape from the lower end of one pressing piece 822 to the lower end of the other pressing piece 822. Formed, foreign substances or dust do not accumulate on the upper surface of the clip 820 during use, so maintenance can be very convenient.

On the other hand, as shown in FIG. 4 on the bottom surface of the fixing part 824, a discharge groove 824B connected to the through hole 824A is formed in a direction perpendicular to the longitudinal direction of the fixing part 824. The discharge groove 824B is to allow rainwater discharged through the through hole 824A to be discharged to both sides of the lower surface of the fixing part 824 without being accumulated. Rainwater introduced into the upper surface of the fixing part 824 by this rainwater discharge structure can be smoothly discharged to both sides of the bottom of the fixing part 824 through the discharge grooves 824B.

The fixing part 824 of the clip 820 is fixed to the square tube 700 by a fixing screw 830 fastened to the fastening plate 840 provided inside the square tube 700 through the through hole 824A. .

As shown in FIGS. 5 and 6 , the fastening plate 840 elastically supports the fastening plate 840 by generating elasticity when the fastening screw 830 is fastened to strengthen the fastening force of the fastening screw 830 and prevent loosening. It further includes a leaf spring 842 for doing so. That is, the plate spring 842 is disposed between the upper surface of the fastening plate 840 and the inner surface of the square tube 700, and generates elasticity while being compressed when the fixing screw 830 is fastened to prevent the fixing screw 830 from loosening. and strengthen the clamping force. For example, the leaf spring 842 may have a rectangular shape with a hole in the center, and may be bent convexly downward.

On the other hand, on the upper surface of the square pipe 700 on which the deck materials 700 are constructed, as described above, the fixing screw 830 passing through the through hole 824A of the fixing part 824 is temporarily fastened to the fastening plate 840 A long hole 710 is formed along the longitudinal direction to change the position of the fixing part 824 in the state of being. The long hole 710 may be formed in the entire length of the square tube 700 or partially. As the long hole 710 of the square tube 700 is formed in this way, the fixing screw 830 passes through the through hole 824A, the long hole 710, and the leaf spring 842, and the fastening plate located inside the square tube 700 In the coupled state to 840, the movement of the clip 820 is possible.

On the other hand, the edges of both support ends 712 of the long hole 710 are bent downward to maintain sufficient rigidity when the clip 820 is coupled, as shown in the enlarged view of the circular shape shown in FIG. 5, so that the reinforcing end (710A) may be formed. That is, since each end of the support end 712 on both sides is bent downward to form the reinforcing end 710A, when the fixing screw 830 is fastened to the fastening plate 840, each reinforcing end 710A is connected to the fastening plate. (840) can be firmly supported.

Such a clip 820 may be made of a synthetic resin material or a metal material.

The process of constructing the deck materials 810 in a non-fastening manner using the clips 820 according to the present invention described above will be described.

As shown in FIG. 2, after passing the fixing screw 830 through the through hole 824A of the clip 820, insert the leaf spring 842 into the fixing screw 830 passing through the through hole 824A. It is temporarily coupled by fastening to the fastening plate 840.

When the fastening 840 to the fixing screw 830 is temporarily coupled, the clip 820 is located on the upper surface of the square tube 700 on the side of the square tube 700, and the leaf spring 842 and the fastening plate 840 are the square tube ( The clip 820 is horizontally moved so as to be positioned inside the 700.

In this process, the clip 820 is located on the upper surface of the square tube 700, the leaf spring 842 and the fastening plate 840 are located inside the square tube 700, and between the leaf spring 842 and the bottom surface of the clip 820 A part of the corresponding fixing screw 830 is located in the long hole 710. Accordingly, the clip 820 is movable along the longitudinal direction of the square tube 700 .

As shown in FIG. 2 by repeating the above process, a plurality of clips 820A, 820B, 820C, 820D are installed in the long hole 710 of the square tube 700.

When each of the clips 820A, 820B, 820C, and 820D is installed, the fixing screw 830 of the first clip 820A is tightened. When the fixing screw 830 is tightened, as shown in FIG. 5, the fastening plate 840 adheres to the bottom surface of both support ends 712 of the long hole 710, so the clip 820A is firmly attached to the upper surface of the square tube 700. It is fixed.

When the first clip 820A is fixed to the square tube 700, the first deck material 810A is brought into close contact with the first clip 820A, so that one side of the pressing end 822 is in the first deck material 810A in one seating groove 814. to be inserted.

Subsequently, one pressing end 822 of the second clip 820B is inserted into the opposite seating groove 814 of the first deck material 810A and pressed, and then the fixing screw 830 of the second clip 820B is tightened. As the fixing screw 830 of the second clip 820B is tightened, the second clip 820B presses and fixes the first deck material 810 while being fixed to the square tube 700.

In this process, the first deck material 810 may be indirectly fixed to the square pipe 700 by the first clip 820A and the second clip 820B.

In particular, since it is not fixed to the square tube 700 by the direct screw as in the prior art, damage and breakage due to the direct screw can be prevented.

And even if the deck material 810 contracts and expands, each pressing end 822 of the first clip 820A and the second clip 820B elastically presses the first deck material 810A on both sides, so deformation can be minimized or prevented. .

On the other hand, as described above, after fixing the first clip 820A and horizontally moving the first deck material 810A to bring it into close contact with the pressing end 822 of the first clip 820A, the second clip 820B is attached to the deck material 810A. ) By repeating the fixing process after attaching them to the opposite side, each deck material (810A, 810B, 810C) can maintain a solid coupling state to each pipe 700 as shown in FIGS. 6 to 8 in an indirect fixing method. do.

On the other hand, by fixing each of the deck materials 810 to the upper surface of the square pipe 700 with the clip 820 in a non-fastening manner, it is possible to prevent damage to the deck material 810, and the press ends 822 on both sides Since the deck material 810 is elastically pressed on both sides, deformation due to contraction and expansion of the deck material 810 may be prevented.

In addition, since each deck member 810 is arranged and fixed at regular intervals by the clip 820, aesthetics can be improved.

In addition, since each deck member 810 is fixed by the clip 820 pressurized from both sides without fastening screws, no interference occurs during walking of the pedestrian, so that the safety of the pedestrian can be secured.

In particular, in a state where each clip 820 is coupled to the square pipe 700, the deck material 9810 can be installed simply by placing the deck material 810 between the clips 820 and then tightening the fixing screw 830. Since it is completed, the construction speed of the deck material 810 can be significantly improved.

9 to 18, the support footbridge 100 equipped with a pile reinforcement cap according to an example of the present invention has a pile 200 installed vertically on the ground and a top of the pile 200 The prefabricated reinforcement cap 300, the steel coping 400 integrated with the reinforcement cap 300, the main girder 500 installed on the upper surface of the steel coping 400, and the upper surface of the main girder 500 It includes each of the square tubes 700 provided. And the clip 820 may be applied to include the deck rod 800 constructed on the upper surface of the square pipe 700.

This will be described in more detail.

The pile 200 is for separating the footbridge 100 from the ground or water surface and supporting the lower part, and is a high-strength pile made by applying centrifugal force. : It can be composed of Pretensioned spun High strength Concrete pile, centrifugal reinforced concrete pile (RC-Pile: Reinforced Concrete pile), steel pipe pile or H-steel pile.

The reinforcing cap 300 is installed at the top of the pile 200 to reinforce the upper end of the pile 200 and to ensure that the connection with the steel coping 400 is made quickly, firmly and stably, the pile 200 are combined while wrapping the top of the

In this embodiment, the reinforcing cap 300 is divided into two parts as shown in FIG. 9 to be prefabricated. The reinforcing cap 300 is divided into two to four cap members 310 and 320 each having semi-cylindrical receiving portions 312 and 322 for accommodating a portion of the upper end of the pile 200. In this embodiment, it is described that it is divided into two, but it is not limited thereto and may be made of two or more.

The upper surface of each cap member 310 or 320 may be closed, or a central part may be open as in the present embodiment.

Flanges 316 and 326 having first fastening through-holes 316A and 326A are respectively formed in contact areas of each cap member 310 and 320 configured to face each other, and between the flanges 316 and 326 and the bodies 311 and 321, the flanges are formed. A plurality of reinforcing ribs 313 and 323 for supporting and reinforcing the ribs 316 and 326 are formed, respectively.

Since the flanges 316 and 326 on both sides are firmly coupled by the third coupling bolt 350 and the nut 350A in a state of contact with each other, both cap members 310 and 320 can be integrated with each other.

In addition, since the reinforcing cap 300 is divided into a pair of cap members 310 and 330, the operation of coupling the reinforcing cap 300 to the upper end of the pile 200 can be made quickly and easily. For example, since the reinforcing cap 300 is divided, transportation can be carried out smoothly, and if necessary, the cap members 310 and 320 on both sides are combined and integrated, and then covered and combined with the top of the pile 200, or both caps After the members 310 and 320 are separated and transported to the construction site, the top of the pile 200 is wrapped with each cap member 310 and 320, and then assembled to firmly couple to the pile 200 to reinforce the upper end of the pile 200. there is.

In addition, since the reinforcing cap 300 is divided into a pair of cap members 310 and 320, it can correspond to various sizes of the pile 200. As an example, when the outer diameter of the pile 200 is smaller than the inner diameter of the reinforcing cap 300, the top of the pile 200 is wrapped with a pair of auxiliary plates in a semicircular arc shape surrounding the outer circumferential surface of the pile 200 The reinforcing cap 300 can be firmly coupled to the upper end of the pile 200 by binding each auxiliary plate member to each other while wrapping the cap members 310 and 320 on both sides. At this time, both ends of the auxiliary plate are positioned between the flanges 316 and 326 on both sides to be coupled with the third coupling bolt 350 like the flanges 316 and 326 on both sides, so that the coupling force can be further improved. As another example, when the outer diameter of the pile 200 is larger than the inner diameter of the reinforcing cap 300, the length of the third coupling bolt 350 is long to firmly couple the flanges 316 and 326 of both cap members 310 and 320. By doing so, the reinforcing cap 300 can be firmly coupled to the top of the pile 200.

On the other hand, an elastic pad 380 for absorbing impact is provided between the upper end of the pile 200 and the inner lower surface of the receiving parts 312 and 322 . More specifically, as shown in FIG. 9, the upper end of the pile 200 and the inner bottom surface of the receiving parts 312 and 322 are alternately laminated with steel plates and rubber materials and integrated by vulcanization. An elastic pad 380 is installed do. An impact generated from the main girder 500 can be buffered by the elastic pad 380, and displacement can be responded to by an external force.

The steel coping (400: steel coping) is for connecting the pile 200 and the main girder 500 and supporting the main girder 500. The lower part is coupled to the reinforcing cap 300 and the upper surface of the main girder 500 ) are combined.

The steel coping 400 is integrated with the divided cap members 310 and 320 by combining lower ends of each of the lower ends of the cap members 310 and 320 with upper ends of the support brackets 430 that are installed inclined upward and outward. It has a structure divided into the same number as the number of divided cap members 310 and 320 so as to be divided.

This will be described in more detail.

As shown in FIGS. 9 and 10, the steel coping 400 is parallel to each other at both ends of the coupling parts 412 and 422 coupled to the bottom surface of the beam member 510 or the reinforcing girder 530 and the coupling parts 412 and 422. The connection plate 440 of the connecting parts 414 and 424 of the first and second coping members 410 and 420 is divided into the first and second coping members 410 and 420 having a "c" shape and is formed of the connecting parts 414 and 424 extending in a similar manner. are joined together to form a rectangular or regular rectangle. Long holes 414A and 424A are formed in both connecting portions 414 and 424, respectively. This is to be able to adjust the position of the fastening bolt (B) when connecting each of the connecting parts (414, 424) on both sides to the connecting plate (440).

In this way, the first and second coping members 410 and 420 of the steel coping 400 are coupled to face each other to form a rectangle, so that the coupling portions 412 and 422 on both sides are each beam member 510 or reinforcing girder 530 in the width direction It is combined with the bottom surface of the main girder 500 to firmly support the center of the bottom surface.

The rectangular steel coping 400 is integrated with the reinforcing cap 300 by a plurality of support brackets 430. Each support bracket 430 may be composed of a plurality, but in this embodiment, it consists of four.

As shown in FIG. 10, the lower ends of the two support brackets 430 are coupled by bolting or welding to the outer surface of the cap member 310 on one side, and each upper end of the first coping member 410. It is bolted or welded to the bottom of both corners. Each lower end of the other two support brackets 430 is bolted or welded to the outer surface of the opposite cap member 320, and each upper end is bolted or welded to both corner bottom surfaces of the second coping member 420.

With this configuration, as shown in FIG. 10 , the cap member 310 on one side and the first coping member 410 are integrated, and the cap member 320 and the second coping member 420 on the opposite side are integrated. In addition, as the connecting portions 414 and 424 on both sides are coupled to each other by the connecting plates 440, as shown in FIG. 11, the cap members 310 and 320 on both sides and the first and second coping members 410 and 420 are coupled to each other It is integrated to form a rectangle or a regular rectangle.

As described above, each of the support brackets 430 may be welded and integrated with the cap members 310 and 320 and the first and second coping members 410 and 420, or may be integrated so as to be disassembled and assembled by a bolting coupling structure. It could be.

In this way, as the reinforcing cap 300 and the steel coping 400 are integrated, the work of connecting and combining the reinforcing cap 300 and the steel coping 400 can be eliminated, thereby significantly reducing the construction period of the footbridge 100. can make it

The main girder 500 is composed of beam members 510 of an H-beam structure and crossbeams 520 connecting and combining beam members 510 on both sides, in this embodiment, two beam members 510 are arranged in parallel in the width direction of the footbridge 100 and coupled to the upper surfaces of both coupling parts 412 and 422 of the steel coping 400.

Both beam members 510 are coupled by maintaining a distance from each other by a plurality of cross beams 520. The crossbeam 520 has an H-beam structure. Both ends of the crossbeam 520 may be coupled to both beam members 510 by welding. Crossbeam 520 according to this embodiment is coupled to the beam member 510 in the following structure. That is, as shown in (a) of FIG. 12, both ends of the crossbeam 520 are coupled to each beam member 510 by respective connecting brackets 522, and the connecting brackets 522 are " It is formed in a ┣" shape. That is, a fixed end (522A) fixed to the beam member 510, and a coupling end (522B) extending in the horizontal direction with a narrower width than the fixed end (522A) at the fixed end (522A) and coupled to the end of the cross beam (520). ) is made up of The fixed end 522A is welded and coupled to the beam member 510, and the coupling end 522B is coupled to the end area of the crossbeam 520 by bolting.

On the other hand, as shown in (b) of FIG. 12, when the fixed end (522A) is formed with a bent end (522A-1) bent in an "L" shape, it is coupled to the beam member 510 by bolting or welding. It can be.

The above-described main girder 500 can be freely manufactured in a flat, straight or curved shape. Each main girder 500 may be directly coupled to the steel coping 400 by bolting. However, in this embodiment, reinforcing girders 530 are provided to improve the cross-sectional performance of the coupling area of the main girder 500 coupled with the steel coping 400.

Each reinforcing girder 530 is provided between the upper surface of each coupling part 412 and 422 of the first and second coping members 410 and the lower surface of each beam member 510, and is coupled to the lower surface of the beam member 510. It consists of an upper coupling portion 532 and a lower coupling portion 534 coupled to upper surfaces of the respective coupling portions 412 and 422 of the first and second coping members 410 and 420. That is, as shown in FIG. 9 , the lower coupling portion 524 is formed to have the same length as the coupling portions 412 and 422 and is shorter than the upper coupling portion 522 . This is to ensure that the load acting from the long beam member 510 is concentrated on the upper surface of each of the coupling parts 412 and 422.

The above-described beam member 510 and the reinforcing girder 530, and the reinforcing girder 530 and the coupling parts 412 and 422 are coupled by bolts and nuts, and the bolts and nuts may further include spring washers for preventing loosening. The anti-loosening spring washer may be configured singly, or 2-3 may be integrally formed. When 2-3 are integrally formed, it may be composed of a leaf spring.

On the other hand, although not shown in the drawings, positioning means may be provided in the beam member 510 and the reinforcing girder 530, and in the reinforcing girder 530 and the coupling parts 412 and 422. For example, two or more positioning protrusions are formed on the bottom surface of the beam member 510, and a positioning groove or a positioning hole corresponding to the positioning protrusion is formed on the reinforcing girder 530, before fastening with bolts and nuts. By inserting the positioning protrusion into the positioning groove and matching the respective bolt holes with each other, the fastening operation of the bolt nut can be made quickly and easily.

At this time, the positioning protrusion is formed in a hemispherical shape and the positioning groove is also formed in a hemispherical shape, but an expansion guide surface is formed around it so that the positioning projection is easily guided to the expansion guide surface and inserted into the positioning groove.

The above-described beam members 510 and the square tubes 700 disposed at intervals on the upper surface of the cross beam 520 are made of square pipes and are for horizontally supporting each deck material 810 made of natural wood. will be. Deck materials 810 are installed on the upper surface of each pipe 700. In the square tube 700 according to the present embodiment, the long hole 710 is formed along the longitudinal direction as described above so that the clip 820 for fixing the deck material 810 is coupled to the upper surface and the coupling position can be changed. . This long hole 710 has a structure that is open toward both ends of the square tube 700.

The assembly and construction process of the support type footbridge 100 equipped with the pile reinforcement cap configured as described above will be described as follows.

As shown in FIG. 9, in a state in which the pile 200 is vertically constructed, the elastic pad 380 is seated on the upper surface of the pile 200.

Subsequently, the cap member 310 on one side coupled by the first coping member 410 and each support bracket 430 and the opposite side coupled by the second coping member 420 and each other support bracket 430 The cap member 320 of the cap member 320 is coupled to each other by bolting, and the connecting portions 414 and 424 of the first and second coping members 410 and 420 are coupled to the connecting plates 440 .

Through this process, the steel coping 400 and the reinforcing cap 300 are integrated.

Subsequently, after the elastic pad 380 is seated on the upper end of the pile 200, the elastic pad 380 and the upper end of the pile 200 are connected to the receiving parts 312 and 322 of the reinforcing cap 300 integrated with the steel coping 400. The reinforcing cap 300 integrated with the steel coping 400 is moved downward to be inserted.

The reinforcing cap 300 and the pile 200 may be coupled by covering the upper end of the elastic pad 380 and the pile 200 with the reinforcing cap 300.

As another coupling method, the cap member 310 on one side coupled by the first coping member 410 and each support bracket 430 and the second coping member 420 and each other support bracket 430 After placing the upper end of the pile 200 and the elastic pad 380 between the cap members 320 on the opposite side coupled by the above, the reinforcing cap 300 is secured to the upper end of the pile 200 by combining the cap members 320 on both sides. can be firmly bonded to.

When the reinforcing cap 300 is coupled to the pile 200 in the above process, the reinforcing girder 530 is seated on the upper surface of both coupling parts 412 and 422 of the steel coping 400, respectively, and then bolted to combine.

At this time, each reinforcing girder 530 may be coupled to the upper surface of the coupling parts 412 and 422 of the first and second coping members 410 and 420 in advance before coupling the reinforcing cap 300 to the pile 200.

Next, in a state where the beam members 510 on both sides are coupled to each other by the cross beam 520, each beam member 510 on both sides is bolted to the upper surface of each reinforcing girder 530 and coupled. However, except for the reinforcing girder 530, each beam member 510 of the main girder 500 may be directly seated and coupled to the upper surface of each coupling part 412 or 422 of the steel coping 400.

In addition, the main girder 500 in a state in which the beam members 510 are coupled to each other by the cross beams 520 may be coupled to the upper surface of the steel coping 400.

When the main girder 500 is coupled to the upper surface of the steel coping 400, the square tubes 700 are arranged on the upper surfaces of the beam members 510 and the cross beams 520 and then fixed so that the upper surfaces of each are aligned horizontally with each other. do. Each square tube 700 is coupled to the upper surface of the beam member 510 and the crossbeam 520 by bolting or welding.

As described above, after integrating the reinforcing cap 300 reinforcing the pile 200 of the footbridge 100 and the steel coping 400, the top of the pile 200 can be reinforced by dividing and configuring left and right symmetrically. In addition, since the work for combining the reinforcing cap 300 and the steel coping 400 can be eliminated by integrating the reinforcing cap 300 and the steel coping 400, the construction period of the footbridge 100 can be significantly shortened. can be shortened.

In addition, by installing the reinforcing girder 530 between the steel coping 400 and the main girder 500, the cross section of the footbridge 100 where the load is concentrated can be reinforced.

In addition, by configuring the support area of the steel coping 400 wide and supporting the load acting on the steel coping 400 with a plurality of support brackets 430, the span length for each span receiving the bending moment is reduced, thereby reducing the member height. It is economical in

In addition, since the reinforcing cap 300 is divided, the operation of coupling the reinforcing cap 300 to the pile 200 can be performed quickly and easily, and transportation is facilitated by having a divided structure.

In the foregoing, although specific embodiments of the present invention have been described and shown, the present invention is not limited to the described embodiments, and it is common knowledge in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. It is self-evident to those who have Therefore, such modifications or variations should not be individually understood from the technical spirit or viewpoint of the present invention, and modified embodiments should fall within the scope of the claims of the present invention.

100: footbridge 200: file
300: reinforcement cap 400: steel coping
500: main girder 520: cross bar
530: reinforcing girder 700: square tube
710: long hole 800: deck load
810: deck material 820: clip
830: fixing screw

Claims (13)

A pile installed vertically on the ground, a reinforcing cap installed on top of the pile, a steel coping provided on the reinforcing cap, a pair of beam members installed parallel to the upper surface of the steel coping, and each beam on both sides Including a main girder including each cross beam connecting members, and a deck rod made of a deck material constructed non-fastening by a clip on the upper surface of each of the beam members and each of the square tubes provided on the upper surface of the cross beam,
The reinforcing cap,
It is composed of each cap member divided into 2 to 4 with an accommodating portion for accommodating a portion of the upper end of the pile and assembled with each other,
The steel coping,
Each lower end is coupled to the outer circumferential surface of each of the cap members and coupled to the upper end of each support bracket installed inclined upward and outward to be divided so as to be integrated with each of the cap members,
the crosswalk,
Both ends are coupled to each of the beam members by respective connecting brackets, and the connecting brackets include: a fixing end fixed to the beam member; And a coupling end extending in the horizontal direction from the fixed end and coupled to the end of the crossbeam,
The clip is
A fixing part having a through hole formed vertically and having a predetermined length, height and width to be seated on the upper surface of the square tube;
The seating groove extends in a curved arc downward from both edges of the upper end of the fixing part in an arc shape, forms a deformation space between the fixing part and has its own elasticity, and is formed concavely on the side surface of the deck material. Characterized in that it is configured to include a pair of pressing pieces for pressing while being inserted into the
A support footbridge equipped with a pile reinforcement cap. According to claim 1,
The fixing part,
Characterized in that it is fixed to the square tube by a fixing screw fastened to a fastening plate provided inside the square tube through the through hole,
A support footbridge equipped with a pile reinforcement cap. According to claim 2,
The fastening plate,
Characterized in that it further comprises a leaf spring for strengthening the fastening force of the fastening screw by generating elasticity during fastening of the fastening screw to elastically support the fastening plate,
A support footbridge equipped with a pile reinforcement cap. According to claim 3,
On the upper surface of the each tube,
Characterized in that a long hole is formed along the longitudinal direction to change the position of the fixing part in a state in which the fixing screw penetrating the fixing part is fastened to the fastening plate,
A support footbridge equipped with a pile reinforcement cap. According to claim 4,
Characterized in that a portion of both support ends of the long hole are bent downward to form a reinforcing end,
A support footbridge equipped with a pile reinforcement cap. According to claim 1,
On the bottom of the fixing part,
Characterized in that the discharge groove connected to the through hole is formed in a direction perpendicular to the longitudinal direction of the fixing part,
A support footbridge equipped with a pile reinforcement cap. delete According to claim 1,
Inside the reinforcing cap,
Characterized in that an elastic pad is provided between the upper end of the pile and absorbs shock.
A support footbridge equipped with a pile reinforcement cap. According to claim 1,
The cap member,
Characterized in that flanges having first fastening through-holes are formed in the areas that contact each other, and reinforcing ribs are provided between the flange and the body, respectively.
A support footbridge equipped with a pile reinforcement cap. According to claim 1,
The steel coping,
It is divided into "c" shaped first and second coping members consisting of a coupling portion and connecting portions extending parallel to each other at both ends of the coupling portion, and each connecting portion of the first and second coping members is connected to each other by connecting plates. Characterized in that it is combined to form a square,
A support footbridge equipped with a pile reinforcement cap. According to claim 10,
Characterized in that a pair of reinforcing girders are respectively provided between the first and second coping members and each of the beam members,
A support footbridge equipped with a pile reinforcement cap. According to claim 11,
The reinforcing girder,
It consists of an upper coupling part coupled to the lower surface of the beam member and a lower coupling part coupled to the upper surfaces of the coupling part of the first and second coping members, and the lower coupling part is formed to have the same length as the coupling part, so that the upper coupling part is formed. Characterized in that it is formed shorter than the part,
A support footbridge equipped with a pile reinforcement cap. delete

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