KR20110023334A - Girder integrated double plate and temporary bridge using the same - Google Patents

Abstract

The present invention relates to a girder integrated double plate and a temporary bridge using the same, and more particularly, a plurality of pockets arranged in the upper part of the girder and having a cross-sectional shape in the form of an ordinary light lower strait, A girder-integrated perforated plate which is formed to be inserted and inserted therein, and includes a shear pocket mold in which concrete is poured, and a support member arranged at the bottom of the shear pocket mold and fixed by the girder and the shear connector, and In the used temporary bridge, the girder and the perforated plate are integrated by the pocket part of the perforated plate and the shear pocket type frame accommodated in the concrete and promoted the synthesis of the girder and the perforated plate, and the shear pocket by the pocket part and the shear pocket frame is It is easy and easy to install the perforated plate in the future, and later dismantle the perforated plate from the girder It is possible to reuse the bokgongpan and girders to propose a girder bridge with integrated bokgongpan and placing them to reduce economic losses.

Girder, Perforated plate, Shear pocket, Shear connector, Support member, Fixing member, Extraction member

Description

Girder integrated double plate and temporary bridge using same {STEEL ROOF FRAME COMBINED WITH GIRDER AND TEMPORARY BRIDGE}

The present invention integrates the girder and the perforated plate by the pocket portion of the perforated plate, and the shear pocket frame that is received and synthesized with concrete to enhance the synthesis action of the girder and the perforated plate, and the shear pocket by the pocket portion and the shear pocket frame to the girder The present invention relates to a girder-integrated perforated plate and a temporary bridge using the same, which facilitates the installation of the perforated plate, and in the future, it is easy and easy to dismantle the perforated plate from the girder, and it is possible to reuse the perforated plate and the girder to reduce economic losses.

In general, when carrying out work such as road construction or bridge repair work, it is necessary to secure work benches and transportation paths so that necessary equipment can be transported, or, due to rainy seasons, floods and floods in summer, Pedestrians will install temporary temporary bridges to secure passages.

In addition, temporary bridges are used for bypass bridges, bridge bridges for construction, permanent bridges, etc., and thus have various purposes and uses.In addition, construction methods and structural stability of bridges for a long time are extended as the installation and width of bridges are extended and length of lifetime is increased. The construction method of this high construction bridge is urgently required.

In particular, the temporary bridge should be easy and quick to install and dismantle according to its purpose.

In addition, structurally, the perforated plate placed on the upper part of the girder needs to enhance the synthesis through the integrated action with the girder.

Therefore, a conventional temporary bridge is disclosed in Korea Patent Registration No. 10-0739823 (2007.07.09. Registered, hereinafter referred to as "prior art") "reinforced plate and girder integrated temporary bridge".

The prior art has a rectangular cross-sectional shape, the upper surface is open, the body portion consisting of the same length as the length of the main girder, a plurality of auxiliary girders installed in the inner space of the body portion in the longitudinal direction of the main girder, and the upper portion of the body portion The perforated plate including a cover plate mounted on the surface is configured to be bolted to the upper surface of the main girder,

The invention is proposed by the present applicant to obtain an effect of increasing the cross-sectional rigidity and improving the deflection and workability of the girder by allowing the perforated plate and the girder to be integrally constructed.

However, the prior art has a plurality of auxiliary girders are arranged inside the perforated plate, and after fastening the perforated plate body portion using a plurality of bolts, it is configured to cover the body portion with a cover plate in the state where the concrete is placed between the auxiliary girders in the perforated plate It is not easy to install or dismantle the perforated plate in the main girder,

In addition, because the concrete must be placed in the entire length along the longitudinal direction between the auxiliary girders arranged in the perforated plate, and the economical efficiency due to the loss of material,

In addition, the auxiliary girder is installed, there is a problem that there is a risk that the deflection phenomenon of the main girder is a lot of weight in the perforated plate porcelain due to the concrete is placed therebetween.

The present invention has been made to solve the above problems,

Integrate the girder and the perforated plate by the pocket part of the perforated plate and the shear pocket type frame accommodated in the concrete to enhance the synthesis action of the girder and the perforated plate, and the shear pocket by the pocket part and the shear pocket type frame installs the perforated plate on the girder It is easy and easy to dismantle the perforated plate from the girder later,

In addition, it is an object of the present invention to provide a girder integrated double plate and a temporary bridge using the same, which is capable of reusing the double plate and the girder to reduce economic losses.

In addition, a fixing member is provided in the shear pocket mold according to the present invention, and the fixing member is more effectively promoting the composite action of the puncture plate and the girder by pressing and fixing the perforated plate and the shear pocket mold to the girder by the tightening force of the shear connecting member, It is another object of the present invention to provide a girder integrated double plate and a temporary bridge using the same which can increase the load capacity and the cross-sectional rigidity of the structure.

In addition, the shear connector according to the present invention is a stud type or 'Y' shaped perforbond type to effectively apply the ductility action of the girder and the perforated plate, and the girder integral perforated plate that can achieve shear rigidity and product quality uniformity and using the same Another purpose is to provide temporary bridges.

Furthermore, the take-out member according to the present invention is formed on the inner wall surface of the shear pocket mold to separate the shear pocket mold from the pocket part, so that the work of discharging the shear pocket mold can be quickly and easily integrated to ensure work convenience. It is an object of the present invention to provide a perforated plate and a temporary bridge using the same.

A girder integrated double plate according to the present invention comprises: a plurality of pockets arranged on the girder and having a cross-sectional shape in the form of an upper and lower straits (上 廣 下 狹); Shear pocket type frame is formed and inserted to correspond to the pocket portion, the concrete is poured therein; And a support member arranged at the bottom of the shear pocket mold and fixed by the girder and the shear connecting member.

And it is arranged horizontally in the shear pocket mold according to the present invention, characterized in that it further comprises a fixing member for penetrating and inserting the shear connector, the pressure-reducing plate to the girder by the fastening of the shear connector.

In addition, the shear connector according to the invention is characterized in that the stud (stud) type or 'Y' shaped perfobond (perfobond) type.

Furthermore, the front pocket frame inner wall surface according to the present invention is characterized in that the take-out member is further provided to ensure the ease of discharging the front pocket frame from the pocket portion.

Meanwhile, the temporary bridge using the girder integrated double plate according to the present invention is a girder, which is arranged on the upper part of the pier; And a plurality of pocket portions arranged in an upper part of the girder and having a cross-sectional shape in the form of an ordinary light bottom narrow, formed to correspond to the pocket portions, and inserted therein, wherein a shear pocket type frame in which concrete is poured therein. And a support plate arranged at the bottom of the shear pocket type frame, the support member being fixed by the girder and the shear connecting member and integrally coupled to the upper portion of the girder.

The girder integrated double plate according to the present invention and the temporary bridge using the same are integrated into the girder and the perforated plate by the pocket portion of the double plate and the shear pocket frame received and synthesized with concrete, thereby increasing the synthesizing action of the girder and the double plate. The shear pocket by the shear pocket mold facilitates the installation of the perforated plate on the girder, and later it is easy and easy to dismantle the perforated plate from the girder, and it is possible to reuse the perforated plate and the girder, thereby reducing the economic loss.

In addition, a holding member is provided in the shear pocket mold according to the present invention, and the fixing member presses and secures the perforated plate and the shear pocket mold to the girder by the tightening force of the shear connecting member to more effectively promote the composite action of the perforated plate and the girder, It is possible to increase the load capacity and the cross-sectional rigidity of the structure.

In addition, the shear connector according to the present invention can be applied to the stud type or 'Y'-shaped perforbond type effectively apply the ductility action of the girder and the perforated plate, it is possible to achieve the shear strength and uniformity of product quality.

Furthermore, the extraction member according to the present invention is formed on the inner wall surface of the shear pocket mold to separate the shear pocket mold from the pocket part so that the work of discharging the shear pocket mold can be quickly and easily ensured the work convenience.

Hereinafter, with reference to the accompanying drawings, a girder integrated double plate and a temporary bridge using the same according to the present invention,

1 to 5 show the girder integrated double plate according to the present invention, Figure 6 is a perspective view showing another modification of the shear pocket frame in the girder integrated double plate according to the present invention, Figure 7 is a girder integrated according to the present invention It is sectional drawing which shows the temporary bridge using a perforated plate.

First, the description of the present specification will first describe the girder integrated double plate according to the present invention, and then describe a temporary bridge using the same, but in order to prevent the technical idea of the present invention from becoming obscure, Duplicate descriptions will be avoided.

As shown in Figures 1 to 4 the girder integrated perforated plate according to the present invention

A plurality of pocket portions 10 arranged on the girder 1 and having a cross-sectional shape in the form of an upper and lower straits; A front pocket frame (20) formed and inserted to correspond to the pocket part (10) and having concrete (C) poured therein; And a support member 30 arranged at the bottom of the shear pocket mold 20 and fixed by the girder 1 and the shear connector 3.

In the girder integrated double plate according to the present invention as shown in Figures 1 to 4, the pocket portion 10

It is arranged along the longitudinal direction on the upper flange 1a of the girder 1, and the cross-sectional shape is formed in the form of an ordinary light lower narrow.

First, the girder 1 according to the present invention is arranged on the upper part of the lower structure of the bridge consisting of the pier, the alternation 5 and the support pillar, the upper and lower portions are provided with flanges (1a) (1b), the upper and lower The flanges 1a and 1b are connected by a web 1c.

And the perforated plate (P) is placed on the upper flange (1a) of the girder 1, made of a polyhedron, such as rectangular or square shape,

It may be made of steel or similar material, the interior of which may be filled or hollow.

In the perforated plate P according to the present invention, the pocket part 10 has a predetermined interval along the longitudinal direction on the upper surface of the upper flange 1a of the girder 1 when the perforated plate P is placed on the girder 1. Spaced apart,

The pocket portion 10 has a vertical cross-sectional shape in the form of an ordinary light bottom (上 廣 下 狹), the planar shape may be made of a polygonal shape or a circular shape (see Fig. 6 attached),

In FIG. 1, it is preferable that the planar shape of the pocket part 10 adopts a rectangular shape among polygonal shapes to simplify its structure to increase workability and economy.

1 to 4, in the girder integrated double plate according to the present invention, the front pocket frame 20 is

It is formed and inserted to correspond to the pocket portion 10, and the concrete (C) is poured therein to form the pocket portion 10 and the shear pocket.

That is, the front pocket frame 20 has a shape corresponding to the pocket portion 10 as described above is inserted into the pocket portion 10,

In addition, the upper portion and the lower portion are formed in an open state, and concrete (C) is poured in the inner space to integrate the perforated plate (P) and the girder (1).

It is formed in the form of narrowing toward the bottom from the top of the shape of the pocket portion 10 and the front pocket frame 20, when inserting the front pocket frame 20 into the pocket 10 is easy and easy to insert To be done,

In addition, after the shear pocket mold 20 is inserted into the pocket portion 10, when the shear pocket mold is formed by pouring non-condensed concrete into the shear pocket mold 20, the shear pocket mold 20 serves to engage. After the perforated plate P is combined with the girder 1, the perforated plate P and the girder 1 are completely fixed by fixing the perforated plate P firmly.

Therefore, the front pocket frame 20 facilitates the installation of the perforated plate (P), it is possible to enhance the synthesis action of the girder (1) and the perforated plate (P),

As a result, the cross-sectional rigidity of the structure can be increased, and thus the load capacity of the bridge can be improved, and the cross-sectional design of the girder 1 can be more effective and economical.

Furthermore, when dismantling the perforated plate (P) in the future, the separation of the perforated plate (P) and the shear pocket mold 20 can be easily and easily, thereby increasing the recyclability of the perforated plate (P) and the girder (1) more economically Effective operation becomes possible.

1 to 4, in the girder integrated double plate according to the present invention, the support member 30 is

It is arranged at the bottom of the shear pocket mold 20, it is fixedly coupled by the upper flange (1a) and the shear connector (3) of the girder (1).

That is, the support member 30 according to the present invention is formed with a through hole 31 to correspond to a plurality of bolt holes (1d) formed in the upper flange (1a) of the girder (1),

The shear connection member 3 is inserted through the bolt hole 1d of the girder 1 and the through hole 31 of the support member 30 from the lower portion to the upper direction thereof, and is exposed in the shear pocket mold 20.

In this state, the upper flange 1a of the girder 1 and the support member 30 are fixed by inserting the nut N in both the upper and lower shear connectors 3.

In addition, the front pocket frame 20 and the support member 30 is fixed through a joining method by welding, in this case, the lower end of the inner wall surface of the front pocket frame 20 and the edge of the support member 30 is bonded by a welding machine. In order to more effectively work the integrated behavior and synthesis of the girder 1 and the perforated plate (P) by the shear pocket mold 20 more effectively.

And the shear connector 3 is projected in the shear pocket mold 20 to cast concrete (C) to induce the integrated behavior of the shear pocket and the shear connector 3 can more firmly shear strength and synthesis action Will be.

Furthermore, the shear connector 3 according to the present invention may selectively use a stud type of bolt type or a 'Y' shaped perfobond type.

First, as shown in FIG. 3, the bolt-type stud type shear connection member 3a is inserted into a bolt hole 1d formed in the upper flange 1a of the girder 1 using a conventional high-strength bolt, and then a lower end thereof. Fastening with nuts,

Alternatively, although not shown in the accompanying drawings, instead of the bolt hole (1d) it can be fixed by a method of welding a high-tensile bolt to the upper flange (1a).

Next, as shown in FIG. 4, the 'Y' shaped perforbond shear connector 3b is mutually connected through the bolt hole 1d of the upper flange 1a and the through hole 31 of the support member 30. The support member 30 is fixed through the bolt fastening method,

A 'Y' shaped perforbond shear connector 3b is exposed in the shear pocket mold 20 on the support member 30 through a welding method.

Therefore, by placing the concrete (C) in the shear pocket mold 20 to improve the shear strength through the integrated behavior of the shear pocket and the shear connector (3), it is possible to achieve a uniform quality of the product,

In particular, in the case of the 'Y'-shaped perforbond type shear connector (3b) it can be excellent in the performance for drawing by its shape.

Furthermore, the perforated plate (P) according to the present invention should be light in weight due to its characteristics such as being installed and dismantled frequently, if necessary,

Therefore, when mounted on top of the girder 1, the perforated plate (P) does not come into close contact with the girder (1) occurs, there is a problem that the shear pocket does not exhibit a synthetic action.

In the present invention to the configuration for solving the problems as described above is to introduce the fixing member 40,

2 and 5, the fixing member 40 is arranged in the horizontal direction in the shear pocket mold 20, and the shear connecting member 3 is inserted therethrough to fasten the shear connecting member 3. By pressing the shear pocket mold 20 is fixed.

That is, the fixing member 40 is connected in such a way that the horizontal bar 40A and the vertical bar 40B intersect, and the shear bar 3 is attached to the horizontal bar 40A or the vertical bar 40B, or both. ) Is formed with a plurality of insertion holes 41 are inserted through,

In addition, the injection portion 43 formed by the horizontal bar 40A and the vertical bar 40B is formed in a hole shape, and the concrete C is poured into the shear pocket mold 20 while the fixing member 40 is installed. When the concrete (C) through the input portion 43 is able to fill the lower fixing member 40.

In addition, each side of the fixing member 40 is spread over the inner wall surface of the front pocket frame 20, and at the same time the shear connecting member 3 is inserted into the insertion hole 41 of the fixing member 40 is fixed member 40 ) Protrudes upwards,

In this case, while tightening the nut to the shear connector (3) by applying a pressing force to the fixing member 40 downward and each side to press the shear pocket mold 20 to fix the perforated plate (P) in close contact with the girder (1). do.

And the arrangement position of the fixing member 40 arranged in the front pocket mold 20 is preferably to be arranged in the upper portion of the front pocket mold 20,

The pressing force by the fixing member 40 extends to the entire front pocket frame 20 to enable more effective support,

In addition, it is to prevent the arrangement position of the take-out member 21 and the arrangement position of the fixing member 40 to be described below overlap each other.

In addition, the extraction member 21 according to the present invention as shown in FIG. 5 is configured to easily insert the shear pocket mold 20 into the pocket portion 10 and to be easily dismantled.

The take-out member 21 is connected to a position symmetrical to the inner wall surface of the front pocket frame 20, the operator grasps the take-out member 21 to insert the front pocket frame 20 into the pocket portion 10 or Lifting and discharging into the front pocket frame 20 can be inserted and dismantled more quickly and easily.

And before placing the concrete (C) in the shear pocket mold 20, the nut (N) portion and the shear pocket mold 20 is arranged in the lower portion of the shear pocket mold (20) coupled to the shear connector (3) By applying a sealing member 50 for waterproofing to the portion where the inner wall surface and each side of the support member 30 abuts to prevent leakage

It is preferable to prevent corrosion of the girder 1 and the bolts B connected to the bottom thereof.

As shown in FIGS. 1 to 7, on the other hand, the temporary bridge using the girder integrated double plate according to the present invention is

Girder (1) arranged on the pier, alternating (5); And a plurality of pocket portions 10 arranged on the girder 1 and having a cross-sectional shape corresponding to the pocket portion 10, and having a cross-sectional shape in the form of an upper and lower strait. Shear pocket mold 20 in which concrete (C) is poured, and a support member (30) arranged at the bottom of the shear pocket mold (20) and fixed by the girder (1) and the shear connector (3). It includes, and comprises a perforated plate (P) integrally coupled to the top of the girder (1).

First, in the temporary bridge using the girder (1) integral perforated plate (P) according to the present invention, the girder 1 is mounted on the pier or the upper part of the girder, and the lower flange 1b of the girder 1 is connected to the pier or the alternator. do.

And it is fixed to the upper flange (1a) of the girder (1) through the bolt hole (1d) so as to project the shear connector 3 to the upper, in this case, the support member (30) can also be fixed together,

Next, when the above-mentioned perforated plate P is placed on the girder 1, the shear connecting member 3 is positioned in the pocket part 10, and the shear pocket mold 20 is placed in the pocket part 10 in this state. After inserting in,

The sealing member 50 is applied to the lower portion of the shear connecting member (3) located in the front pocket mold (20), the contact portion of each side of the front pocket mold (20) and the support member (30).

Finally, the non-shrink concrete is poured into the shear pocket mold 20 so that the perforated plate P and the girder 1 are completely integrated.

Furthermore, before placing the concrete (C) in the shear pocket mold 20 to press the perforated plate by the fixing member 40 to more effectively achieve the integration of the girder 1 and the perforated plate (P). In this case, it is possible to maintain the integrated behavior of the girder 1 and the perforated plate P without placing concrete C.

In addition, by connecting the take-out member 21 to the inner wall of the shear pocket mold 20, it is easy and easy for the worker to insert and detach the shear pocket mold 20 from the pocket portion 10 to ensure the convenience of work. It is possible to do so.

In the above description with reference to the accompanying drawings, the present invention girder-integrated perforated plate and the temporary bridge using the same, the description was mainly focused on a specific shape and direction, the present invention can be variously modified and changed by those skilled in the art, such variations and modifications It should be construed as being included in the scope of the present invention.

1 is a perspective view showing a girder integrated double plate according to the present invention,

Figure 2 is a sectional view and an enlarged view showing a fixing member of the girder integrated double hole plate according to the present invention,

3 and 4 is a cross-sectional view showing a shear connector of the girder integrated double-hole plate according to the invention,

Figure 5 is a cross-sectional view and an enlarged view showing the take-out member of the girder integrated double hole plate according to the present invention,

Figure 6 is a perspective view showing another modified example of the shear pocket mold in the girder integrated double plate according to the present invention,

7 is a cross-sectional view showing a temporary bridge using a girder integrated double plate according to the present invention.

<Explanation of Signs of Major Parts of Drawings>

P: perforated plate C: concrete

B: Bolt N: Nut

1: Girder 1a: Upper Flange

1b: Lower flange 1c: Web

1d: Bolt Ball

3: Shear connector 3a: Stud type shear connector

3b: 'Y' shaped perforbond type shear connector

5: piers or shifts

10: pocket part

20: shear pocket mold 21: take-out member

30 support member 31 through hole

40: fixing member 40A: horizontal bar

40B: vertical bar 41: insertion hole

43: input part

50: sealing member

Claims (5)

A plurality of pocket portions arranged on the girder and having a cross-sectional shape in the form of an upper and lower straits; A front pocket frame formed to correspond to the pocket part and inserted into the pocket part, in which concrete is poured; And A support member arranged at the bottom of the shear pocket mold and fixed by the girder and the shear connecting member; Girder integrated double plate made of a. The method of claim 1, Arranged horizontally within the shear pocket mold, The girder-integrated plate of perforated plate, characterized in that the shear connector is inserted through, further comprising a fixing member for pressing and fixing the perforated plate to the girder by the fastening of the shear connector. The method of claim 1, The shear connector is a stud type or 'Y' shaped perfobond (perfobond) type, characterized in that the girder integrated double plate. 4. The method according to any one of claims 1 to 3, And a take-out member on the inner wall surface of the front pocket frame for further discharging ease of the front pocket frame from the pocket part. Girder arranged on the piers, shift upper part; And A plurality of pockets arranged on an upper part of the girder and having a cross-sectional shape in the form of an ordinary light bottom narrow; It is formed and inserted so as to correspond to the pocket portion, the inside of the shear pocket type frame is poured concrete, and A support member arranged at the bottom of the shear pocket mold and fixed by the girder and the shear connecting member, A perforated plate integrally coupled to the girder top; Temporary bridge using a girder integrated double plate made of a.

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