KR102276534B1 - Steel plate bridge supported by cable and construction method of the same - Google Patents

Abstract

The present invention relates to a steel plate bridge where a cable support structure is added, which comprises: a support steel plate both end parts of which are respectively fixated to a first fixing point and a second fixing point and which supports load from an upper side; a support cable extended in parallel to the support steel plate to enable both end parts to be respectively fixated to the first fixing point and the second fixing point and sharing and supporting load from the upper side with the support steel plate together; and an upper structure fixated and installed on the support steel plate and an upper surface of the support cable. According to the present invention, the present invention maintains advantages of the steel plate bridge and can be applied to a long span structure.

Description

Steel plate bridge with cable support structure and its construction method {STEEL PLATE BRIDGE SUPPORTED BY CABLE AND CONSTRUCTION METHOD OF THE SAME}

The present invention relates to a steel plate bridge to which a cable support structure is added and a construction method thereof, and more particularly, by adding a cable support structure to the suspension bridge of the steel plate support structure, it can be applied to a long span structure by overcoming the limitations of the steel plate bridge. It relates to a steel plate bridge and its construction method.

In general, a suspension bridge is a bridge that is installed across a valley or river without a bridge, and is mainly used in areas where it is difficult to install a bridge, such as a canyon or valley in a mountainous area.

Such a suspension bridge mainly serves as a passage for pedestrians. Generally, a steel plate bridge with a steel plate support structure resistant to deflection and vibration is applied to a short span structure, and a cable bridge with a cable support structure with excellent workability and economic efficiency is constructed for a long span structure. is becoming

In this regard, in the case of a steel plate bridge, due to the limitation of the length of the steel plate members, in order to extend them to the fixing points of both ends, the steel plate members must be continuously joined and drawn out after installing the temporary platform. It requires a lot of equipment and costs, and it is sometimes impossible to install a temporary stand depending on the site conditions. In addition, a method of continuously withdrawing steel sheets using equipment such as a crane can be used, but in this case, there is a problem that it is difficult to enter the equipment depending on the site conditions. there is a situation.

Therefore, there is an increasing demand for a new steel plate bridge that can be constructed for long span structures while taking advantage of the unique advantages of steel plate bridges.

1. Republic of Korea Patent Publication No. 10-1706974 (2017.02.09) 2. Republic of Korea Patent Publication No. 10-2151075 (2020.08.27)

The present invention is to solve the problems of the prior art as described above, and an object of the present invention is to improve the workability of the steel plate bridge by merging the cable support structure with the steel plate support structure, thereby maintaining the advantages of the steel plate bridge while maintaining the long span structure. An object of the present invention is to provide a steel plate bridge with an applicable cable support structure and a construction method thereof.

One aspect of the present invention for achieving the above object, both ends are respectively fixed to the first fixing point and the second fixing point, and a support steel plate for supporting a load from the upper portion; a support cable extending in parallel with the support steel plate and having both ends fixed to the first fixing point and the second fixing point, respectively, and sharing and supporting a load from the upper part together with the support steel plate; It relates to a steel plate bridge to which a cable support structure is added, characterized in that it includes; an upper structure fixedly installed on the upper surface of the support steel plate and the support cable.

In the steel plate bridge to which the cable support structure is added according to an embodiment of the present invention, the support cable is provided with a pair spaced apart by a predetermined distance between the first fixing point and the second fixing point, and the support steel plate comprises: A pair may be provided by being spaced apart a predetermined distance inside each support cable between the pair of support cables.

In addition, a pair of the support cables may be disposed to be spaced apart by a predetermined distance between the first fixing point and the second fixing point, and one of the support steel plates may be disposed in the center between the pair of support cables. .

In addition, a pair of the supporting steel plates may be disposed spaced apart by a predetermined distance between the first fixing point and the second fixing point, and one support cable may be disposed in the center between the pair of supporting steel plates. .

In addition, the upper structure, the base plate is fixed to the upper surface of the support cable and the support steel plate, and serves as a footrest for supporting pedestrians' walking; It may be configured to include a; handrail unit fixed to the base plate to prevent departure of pedestrians and provide a gripping part when moving.

In addition, the handrail unit includes: a rod member extending upwardly from both sides of the base plate; It may be configured to include; a gripping member connected between the rod members.

In addition, the base plate and the support cable may be coupled to each other by a cable fixing clip, and the base plate and the support steel plate may be coupled to each other by bolt coupling.

Another aspect of the present invention relates to a construction method of a steel plate bridge having a cable support structure having the above configuration added, the construction method comprising: (a) supporting between the first fixing point and the second fixing point Mounting the cable and fixing it by introducing a tensile force; (b) continuously withdrawing a support steel plate from a first fixing point to a second fixing point in a state in which it is bound to the support cable by a detachable mounting module; (c) removing the mounting module from the supporting cable and the supporting steel plate; (d) fixing the support steel plate to the first fixing point and the second fixing point; and (e) installing the bridge superstructure on the upper surface of the support cable and the support steel plate.

In the construction method of the steel plate bridge to which the cable support structure is added according to an embodiment of the present invention, the step (b) includes: (b1) coupling the mounting module to one end of the supporting steel plate; (b2) binding the mounting module to the support cable; (b3) pulling the support module by the length of the support steel plate member while binding the module to the support cable; (b4) bonding the other end of the support steel plate to a new support steel plate; and (b5) repeating steps (b3) to (b4) until the mounting module reaches the second fixing point.

In addition, the step (b3) may be performed by pulling the mounting module from the second fixing point by a traction wire installed on the holding module.

In addition, the step (b4) may be performed by welding.

And, the step (b4) may be performed by fastening a rivet or a bolt-nut.

In addition, the mounting module includes a plate-shaped mounting plate coupled to one end of the supporting steel plate; It is provided on one side of the mounting plate, and is configured to include a; binding hole for binding the mounting plate to the support cable, the binding hole is formed in a ring shape detachable to the mounting plate, the support cable therein By selectively binding it, it may be configured to be movable while being bound to the support cable.

In addition, the support steel plate and the mounting plate may be fixed by bolt-nut coupling.

In addition, a curved groove may be formed on the joint surface of the support cable and the mounting plate in the inner space of the binding hole to reduce friction.

In addition, a slip coating layer for reducing frictional force may be formed in the groove of the curved surface.

In addition, a bearing unit for reducing friction may be installed in the groove of the curved surface.

In addition, a pair of the support cables are installed to be spaced apart by a predetermined distance between the first fixing point and the second fixing point, and the mounting plate is formed on both sides of the plate by crossing between the pair of support cables. It may be each bound to the support cable through a pair of binding spheres.

In addition, a pair of supporting steel plates may be fixed to the inside of the pair of binding spheres to the mounting plate.

And, a traction wire for pulling the mounting plate to the second fixing point may be coupled to one side of the mounting plate.

In addition, the holding module may include: a holding wire coupled to the supporting steel sheet through one side of the supporting steel sheet, and accommodating the supporting cable therein to be bound to the supporting cable; A coupling socket for selectively binding the mounting wire to the support cable by coupling both ends of the holding wire to each other; may be configured to include.

In addition, the outer circumferential surface of the holding wire may be slip-coated to reduce friction.

In addition, the slip coating may be made of PTFE (polytetrafluoroethylene).

In addition, a traction wire for pulling the holding wire to the second fixing point may be coupled to the holding wire.

A steel plate bridge with a cable support structure added according to the present invention having the configuration as described above and a construction method thereof are temporary platforms requiring large-scale facilities and costs by first installing an easy-to-construct cable and then supporting the cable to pull the steel plate. Alternatively, there is an effect that a steel plate bridge can be constructed in a long span without the installation of equipment.

In addition, according to the present invention, in terms of structural stability, the steel plate support structure prevents lateral deformation and vibration caused by wind pressure, and the vertical sag and vibration are controlled by the tensile force of the cable, and the thickness of the steel plate between the spans is different. As a member design according to stress is possible, there is an effect that a stable structure with improved stability and durability can be implemented.

Furthermore, according to the present invention, by applying the composite support structure, the thickness of the steel plate and the type of cable can be appropriately designed according to the conditions of the construction site, so that economical construction is possible.

1 is a side view of a steel plate bridge to which a cable support structure is added according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of various embodiments of the steel plate bridge according to FIG. 1 .
3 is a perspective view illustrating a construction process of the steel plate bridge according to FIG. 1 .
4 is a perspective view of an embodiment of a mounting module applied to the construction process of the steel plate bridge according to FIG. 1 .
5 is a cross-sectional view of various embodiments of the friction reducing means applied to the mounting module according to FIG.
6 is a perspective view of another embodiment of a mounting module applied to the construction process of the steel plate bridge according to FIG. 1 .

Since the present invention can apply various transformations and can have various implementations, specific implementations are illustrated in the drawings and described in detail. However, this is not intended to limit the present invention to specific embodiments, and it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention. In describing the present invention, if it is determined that a detailed description of a related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

Terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

The terminology used in this application is used only to describe specific embodiments, and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Hereinafter, the steel plate bridge to which the cable support structure of the present invention is added and the construction method thereof will be described in more detail with reference to preferred embodiments and the accompanying drawings.

In this regard, FIG. 1 is a side view of a steel plate bridge to which a cable support structure is added according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of various embodiments of the steel plate bridge according to FIG. 1 .

1 to 2, the steel plate bridge to which the cable support structure according to the present invention is added is a support steel plate 30, a support cable 40, and the support steel plate 30 and the support cable 40. It is configured to include the supported upper structure (50).

In the present invention, the support steel plate 30 is for supporting the load from the upper portion, and both ends may be fixed to the first fixing point 10 and the second fixing point 20 , respectively. Here, at the first fixing point 10 and the second fixing point 20 , various objects to be fixed such as pillar posts or concrete installations for fixing the support steel plate 30 and the support cable 40 may be installed.

In addition, the support cable 40 is for sharing and supporting the load from the upper part together with the support steel plate 30 , and extends in parallel with the support steel plate 30 so that both ends are provided with the first fixing point 10 . ) and the second fixing point 20 are respectively fixed. As the support cable 40, a PC strand or various cables of spiral and parallel series may be used.

In the present invention, the support steel plate 30 and the support cable 40 may be configured in various combinations depending on the installation position of the bridge, the distance between both fixing points, and the like.

In this regard, referring to FIG. 2A , a pair of the support cables 40 may be provided with a predetermined distance between the first fixing point 10 and the second fixing point 20 . In addition, a pair of the supporting steel plates 30 may be provided by being spaced apart from each other by a predetermined distance inside each of the supporting cables 40 between the pair of supporting cables 40 .

According to another embodiment of the present invention, as shown in (b) of FIG. 2 , a pair of support cables 40 are spaced apart a predetermined distance between the first fixing point 10 and the second fixing point 20 . ) is disposed, and one line of support steel plates 30 may be disposed at a central point between the pair of support cables 40 .

According to another embodiment of the present invention, as shown in (c) of FIG. 2, the first fixing point 10 and the second fixing point 20 are spaced apart a predetermined distance between a pair of supporting steel plates ( 30) is disposed, and one line of support cables 40 may be disposed at a central point between the pair of support steel plates 30 .

In the case of the embodiment according to (a) of FIG. 2, since it is configured to include a pair of support cables 40 and a pair of support steel plates 30, lateral deformation and vibration caused by wind pressure support the pair of steel plates The structure prevents vertical deflection and vibration, and a pair of cable support structures control the tension by adjusting the tensile force. Therefore, in the case of the present embodiment, the structurally most robust bridge can be realized with less sway in the vertical and horizontal directions, but the construction period is relatively long and the construction cost may increase. On the other hand, in the case of the embodiment according to (b) of Figure 2, the construction is easy and suitable for installation in the longest section, whereas compared to the embodiment according to (a) of Figure 2 (a), there may be more swaying in the lateral direction due to wind pressure. have. In addition, in the case of the embodiment according to Fig. 2 (c), as an intermediate case between the embodiments according to Figs. 2 (a) and (b), the selection according to each embodiment is the topographical condition of the point where the bridge is installed, It may be appropriately selected according to the distance between the two points, and the like.

In addition, according to the present invention, there is an effect that can implement a stable structure with improved stability and durability as the member design according to the stress generated by varying the thickness of the steel sheet between the spans. That is, it is possible to set the thickness of the steel plate thickly at the middle point of the bridge where the bending moment occurs the most, and to set the thickness at the starting point of both sides to be thin.

In the present invention, the upper structure 50 serves as a passage through which pedestrians pass, and is fixed to the upper surface of the support cable 40 and the support steel plate 30, and serves as a footing base for supporting pedestrians' walking. A plate 51 may be included. The base plate 51 may be made of a plate material that pedestrians can walk on. A steel plate may be used as the base plate 51, and in addition, it may be formed of synthetic resin, aluminum, iron, etc. or made of wood. may be

In the present invention, a handrail unit that prevents a pedestrian from leaving and provides a gripping part when the pedestrian moves may be fixedly installed on the base plate 51 on the upper portion of the base plate 51 . In this case, the handrail unit may include a bar member 53 extending upward from both sides of the base plate 51 and a holding member 52 connected between the bar member 53 .

In the present invention, the base plate 51 and the support cable 40 may be coupled to each other by a cable fixing clip. In addition, the base plate 51 and the supporting steel plate 30 may be coupled to each other by bolting. In this case, since the screws and bolts protrude to the outside, which may be concerned about the safety of pedestrians, it is preferable that the corresponding portion of the base plate 51 forms a groove so that the fastening is made through this.

As described above, in the steel plate bridge to which the cable support structure according to the present invention is added, the steel plate support structure prevents lateral deformation and vibration caused by wind pressure in terms of structural stability, and the vertical deflection and vibration are controlled by the tensile force of the cable. In addition, by varying the thickness of the steel plate between the spans, it is possible to design a member according to the stress generated, so that a stable structure with improved stability and durability can be implemented.

Furthermore, according to the present invention, by applying the composite support structure, it is possible to appropriately design the thickness of the steel plate and the type of cable according to the conditions of the construction site, thereby economically constructing the bridge.

Another aspect of the present invention relates to a method of constructing a steel plate bridge to which a cable support structure having the above configuration is added. In this regard, Figure 3 is a perspective view showing the construction method of the steel plate bridge according to the present invention.

Referring to Figure 3, the construction method of the steel plate bridge according to the present invention is first (a) by installing a support cable 40 between the first fixing point 10 and the second fixing point 20 and introducing a tensile force. The support cable 40 is fixed. Here, the introduction of the tensile force may use a tension device 41 for introducing a tensile force operated by hydraulic pressure, and the like. In addition, the fixing of the support cable 40 may be fixed by a fixing member fixed to a column post installed at the first fixing point 10 and the second fixing point 20 or by a fixing anchor installed in a concrete installation. .

Subsequently, (b) continuously from the first fixing point 10 to the second fixing point 20 in a state in which the support steel plate 30 is bound to the support cable 40 by the detachable mounting modules 60 and 70 . will be withdrawn to

Here, if the step of pulling the support steel plate 30 is subdivided again, first, after coupling the mounting modules 60 and 70 to one end, that is, the front end of the supporting steel plate 30, the mounting modules 60 and 70 are supported. It is bound to the cable 40 . Then, in a state in which the mounting modules 60 and 70 are bound to the support cable 40 , the length of the member of the support steel plate 30 is drawn. Then, after bonding the other side, that is, the rear end of the support steel plate 30a with the new support steel plate 30b, the mounting modules 60 and 70 are towed by the member length of the support steel plate 30 again. Then, by repeating the above-described process until the mounting modules 60 and 70 reach the second fixing point 20 , the supporting steel plate 30 is second fixed at the first fixing point 10 . It is towed to the point (20).

In this case, the step of joining the support steel plate 30a and the support steel plate 30b to each other may be performed by welding, rivet fastening, or bolt nut fastening. In addition, the process of pulling the support steel plate 30 may be performed by a method of pushing the support steel plate 30 from the first fixing point 10 to the second fixing point 20 using equipment. Alternatively, it may be performed in a manner of pulling the mounting modules 60 and 70 from the second fixing point 20 using a traction wire installed on the mounting modules 60 and 70 as described below.

In relation to the construction method according to the present invention, Figure 4 is a perspective view of an embodiment of the mounting module (60). Referring to FIG. 4 , the mounting module 60 may largely include a mounting plate 61 and a binding sphere 62 .

Here, the mounting plate 61 is for pulling the supporting steel plate 30 from the first fixing point 10 to the second fixing point 20 by fixing one end of the supporting steel plate 30, and having a rectangular shape. may be formed in the form of a plate of At this time, the support steel plate 30 may be fixed to the mounting plate 61 by a bolt and nut coupling 63 .

In addition, the binding hole 62 is provided on one side of the mounting plate 61 to bind the mounting plate 61 to the support cable 40 . In this case, the binding hole may be formed in a ring shape detachable to the mounting plate 61 so that the support cable 40 is selectively bound therein. As a result, the mounting plate 61 is movable along the support cable 40 while being bound to the support cable 40 .

As described above, since the mounting plate 61 moves while in contact with the support cable 40 within the binding hole 62 , a friction reducing means is provided on the contact surface between the mounting plate 61 and the support cable 40 . It is preferable to do

Referring to FIG. 5 in this regard, as shown in (a) of FIG. 5 , a curved groove 66 is formed on the contact surface between the mounting plate 61 and the support cable 40, so that the mounting plate 61 is formed. It becomes possible to reduce friction by relaxing the contact between the and the support cable 40 .

In addition, a slip coating layer is formed in the groove 66 of the curved surface as shown in FIG. 5B to further reduce friction. As the base substrate of the slip coating, a synthetic resin or metal such as PET, PC, PMMA, PI, PVC, etc. may be used.

In addition, it is possible to more completely reduce friction by installing a bearing unit in the groove 66 of the curved surface as shown in FIG. 5(c).

According to one embodiment of the present invention, when a pair of support cables 40 is installed with a predetermined distance between the first fixing point 10 and the second fixing point 20, the mounting plate 61 is It may be configured to cross between the pair of support cables 40 and be respectively bound to the support cables 40 through a pair of binding spheres 62 formed on both sides of the plate 61 .

According to this embodiment, it is possible to simultaneously fix and tow the pair of supporting steel plates 30 to the mounting plate 61, thereby enabling faster and more economical construction. In addition, a traction wire 65 for pulling the mounting plate 61 to the second fixing point 20 may be additionally provided on one side of the mounting plate 61 . Accordingly, instead of pushing the support steel plate 30 from the first fixing point 10 to the second fixing point 20 , the mounting plate 61 at the second fixing point 20 using the traction wire 65 . ), it becomes possible to pull the supporting steel plate 30 more easily.

6 is a perspective view of another embodiment of the mounting module 70 . Referring to FIG. 6 , the mounting module 70 is a wire-type mounting module 70 that penetrates one side of the supporting steel plate 30 and is coupled to the supporting steel plate 30 and includes the supporting cable 40 therein. A coupling socket for selectively binding the holding wire 71 to the supporting cable 40 by combining both ends of the holding wire 71 to be accommodated and bound to the supporting cable 40, and the holding wire 71 to each other ( 72) may be included.

The holding module 70 according to the present embodiment, in a state in which the holding wire 71 is bound to the supporting cable 40 , is attached to the supporting steel plate 30 along the supporting cable 40 at the first fixing point 10 . It is towed to the second fixing point (20). Therefore, in order to reduce the frictional force between the mounting wire 71 and the support cable 40, the outer peripheral surface of the mounting wire 71 may be subjected to slip coating.

At this time, as the base substrate of the slip coating, it is preferable to use PTFE (polytetrafluoroethylene), which has excellent mechanical properties such as abrasion resistance, and excellent adhesion to metal wires during coating.

The holding wire 71 may further include a traction wire 73 for pulling the holding wire 71 to the second fixing point 20 for the same reason as in the above-described mounting plate 61 .

After pulling the support steel plate 30 to the second fixing point 20 as described above, the mounting modules 60 and 70 are removed from the support cable 40 and the support steel plate 30, and then the first fixing After fixing the support steel plate 30 to the point 10 and the second fixing point 20, the cable according to the present invention by installing the bridge superstructure 50 on the upper surface of the support cable 40 and the support steel plate 30 The construction of the steel plate bridge with the support structure is completed. Since this process can be performed by a conventional suspension bridge construction method, a detailed description will be omitted.

As described above, in the method for constructing a steel plate bridge with a cable support structure according to the present invention, a temporary platform or equipment requiring large-scale facilities and costs by first installing an easy-to-construct cable and then supporting the cable to pull the steel plate. It has the effect of constructing a steel plate bridge between long spans without the installation of In addition, by applying the composite support structure, it is possible to appropriately design the thickness of the steel plate and the type of cable according to the conditions of the construction site, so that economical construction is possible.

Although preferred embodiments of the present invention have been described above, those of ordinary skill in the art can add, change, delete or It will be possible to variously modify and change the present invention by addition, etc., which will also be included within the scope of the present invention.

For example, each component described as a single type may be implemented in a dispersed form, and likewise components described as distributed may be implemented in a combined form. The scope of the present invention is indicated by the following claims rather than the above detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention. do.

The present invention relates to a steel plate bridge and a construction method thereof that can be applied to a long-span structure by overcoming the limitations of the steel plate bridge by adding a cable support structure to the suspension bridge of the steel plate support structure.

10: first fixing point 20: second fixing point
30: support steel plate 40: support cable
50: bridge superstructure 51: base plate
52: connecting member 53: rod member
60: plate type mounting module 61: mounting plate 62: binding hole 63: bolt nut 64: through hole 65: traction wire
66: curved surface 70: wire type mounting module
71: mounting wire 72: bonding socket
73: traction wire

Claims (12)

In the steel plate bridge with a cable support structure that can be applied to a long span structure by adding a cable support structure to the steel plate support structure,
a support steel plate having both ends fixed to the first and second fixing points, respectively, and supporting a load from the upper portion;
a support cable extending in parallel with the support steel plate and having both ends fixed to the first fixing point and the second fixing point, respectively, and sharing and supporting a load from the upper part together with the support steel plate;
and an upper structure fixedly installed on the upper surface of the support steel plate and the support cable; and configured to include:
Steel plate bridge with cable support structure added,
(a) mounting the support cable between the first fixing point and the second fixing point and fixing it by introducing a tensile force;
(b) continuously withdrawing a supporting steel plate from the first fixing point to a second fixing point in a state in which it is bound to the supporting cable by a detachable mounting module;
(c) removing the mounting module from the supporting cable and the supporting steel plate;
(d) fixing the support steel plate to the first fixing point and the second fixing point; and
(e) installing the bridge superstructure on the upper surface of the supporting cable and supporting steel plate; a steel plate bridge with a cable support structure, characterized in that it is constructed including.
According to claim 1,
The support cable is
A pair is provided with a predetermined distance between the first fixing point and the second fixing point,
The support steel plate,
A steel plate bridge with a cable support structure, characterized in that a pair is provided with a predetermined distance spaced apart inside each support cable between the pair of support cables.
According to claim 1,
The support cable is
A pair is disposed spaced apart by a predetermined distance between the first fixing point and the second fixing point,
The support steel plate,
A steel plate bridge with a cable support structure, characterized in that one is disposed in the center between the pair of support cables.
According to claim 1,
The support steel plate,
A pair is disposed spaced apart by a predetermined distance between the first fixing point and the second fixing point,
The support cable is
A steel plate bridge with a cable support structure, characterized in that one is disposed in the center between the pair of supporting steel plates.
According to claim 1,
The upper structure is
a base plate fixed to the upper surface of the support cable and the support steel plate to become a footrest for supporting pedestrians'walking;
A steel plate bridge with a cable support structure, characterized in that it includes; a railing unit that is fixedly installed on the base plate to prevent pedestrians from leaving and provide a gripping part when moving.
6. The method of claim 5,
The handrail unit is
a rod member extending upwardly from both sides of the base plate;
A steel plate bridge with a cable support structure, characterized in that it comprises; a holding member connected between the rod members.
7. The method of claim 6,
The base plate and the support cable are coupled to each other by a cable fixing clip,
A steel plate bridge with a cable support structure, characterized in that the base plate and the supporting steel plate are coupled to each other by bolting.
A supporting steel plate having both ends fixed to the first and second fixing points, respectively, and supporting a load from an upper portion, and extending parallel to the supporting steel plate so that both ends are respectively fixed to the first fixing point and the second fixing point In constructing a steel plate bridge with an added cable support structure comprising a support cable that is fixed and supports by sharing the load from the upper part together with the support steel plate, and an upper structure fixedly installed on the upper surface of the support steel plate and the support cable ,
(a) mounting the support cable between the first fixing point and the second fixing point and fixing it by introducing a tensile force;
(b) continuously withdrawing a supporting steel plate from the first fixing point to a second fixing point in a state in which it is bound to the supporting cable by a detachable mounting module;
(c) removing the mounting module from the supporting cable and the supporting steel plate;
(d) fixing the support steel plate to the first fixing point and the second fixing point; and
(e) installing the bridge superstructure on the upper surface of the supporting cable and the supporting steel plate; a construction method of a steel plate bridge with a cable support structure, characterized in that it is constructed, including.
9. The method of claim 8,
The step (b) is,
(b1) coupling the mounting module to one end of the supporting steel plate;
(b2) binding the mounting module to the support cable;
(b3) pulling the holding module by the length of the supporting steel plate member while being bound to the supporting cable;
(b4) bonding the other end of the support steel plate to a new support steel plate; and
(b5) repeating the steps (b3) to (b4) until the mounting module reaches the second fixing point; construction method.
10. The method of claim 9,
The step (b3) is,
A method of constructing a steel plate bridge with a cable support structure, characterized in that it is carried out by pulling the holding module at the second fixing point by a traction wire installed in the holding module.
10. The method of claim 9,
The step (b4) is,
A construction method of a steel plate bridge to which a cable support structure is added, characterized in that it is performed by welding.
10. The method of claim 9,
The step (b4) is,
A method of constructing a steel plate bridge with a cable support structure, characterized in that it is performed by fastening rivets or bolts and nuts.

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