KR101415981B1 - By connecting members with composite rigid frame bridge structure and its construction method - Google Patents

Abstract

An objective of the present invention is to provide a synthetic rigid-frame bridge using a member-to-member connection structure and a method for manufacturing the same. By forming a cantilever member using a shear bonding of a break point portion (refracted portion), a bending moment of the break point portion (refracted portion) can be minimized by a connection style and a placement style of a central crossbeam, a crossbeam connection member and a crossbeam support member. Since the length of the central crossbeam can be adjusted to reduce the length of a temporary member, an end portion of a member can be connected by a shear bonding, thereby enhancing the safety of construction without a risk of tumbling and promoting the convenience of rigid-frame bridge construction by reducing the length of the central crossbeam.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a composite bridge structure and a construction method thereof,

The present invention relates to a composite type raymen bridge using member connection structures and a method of constructing the same, and more particularly, to a bending moment of a disconnection point portion (right corner portion) by a connecting method and a mounting method of a center beam, a beam connecting member, The length of each member is adjusted and the cantilever member is formed. Therefore, there is no danger of conduction during construction, and the safety of construction is improved, and the length of the center beam is reduced by using the formed cantilever member, The present invention relates to a composite type rayman bridge and a method of constructing the same.

In general, ramen bridge is a bridge mainly made of ramen, and usually the bridge is composed of an upper structure and a lower structure supporting the upper structure. However, the ramen bridge is composed of a moon-shaped structure.

There are various types of ramen bridge described above depending on the structure of the branch, and there are special ones such as continuous ramen bridge connecting multiple spans.

Hereinafter, a conventional ramen bridge will be described in detail with reference to exemplary drawings attached.

1A to 1E, a construction process of a conventional general reinforced concrete razor bridge 110 will be described. A foundation 10 is installed. When the wall 11 is high, a part of the wall 11 The upper part of the wall 11 and the upper slab concrete 20 are poured and cured after the formwork 40 and the shore 50 are installed to place the upper slab. And a barrier, a pavement or the like is installed to complete the bridge.

In the conventional concrete concrete brassiam brick having the above-described construction, since the ratio of the self weight is high in the case of the long span bridges, it is not possible to support the upper load only by the material of the reinforced concrete, so that it can be applied only to the short span bridges, It is difficult to secure the bridge, and there is a disadvantage that the quality of the bridge is not good because the whole cross section of the concrete is cast on the site.

In addition, it is necessary to install the concrete at the time of concrete pouring for the formation of the upper slab, and when the height of the lower structure is shorter than that of the span, the moment becomes too large in the wall and foundation,

As shown in FIGS. 2A to 2F, a composite ramen bridge 140 having a conventional prestressing composite beam installed at a center portion of a slab of a ramen bridge is constructed by installing a foundation 10, and a " Shaped connecting steel member 62 provided on the wall 11 and a prestressed prefabricated composite beam 91 are fastened and connected by a high tension bolt to connect a part of the wall After slab and abdominal concrete are laid, a barrier pavement is installed to complete the bridge.

In addition, Japanese Patent Registration No. 10-0770574 has proposed a pre-stressed steel reinforced concrete composite type raymen bridge and a construction method thereof.

As shown in FIGS. 3A to 3E, a conventional pre-stressed steel-reinforced concrete composite-type raymen bridge and its construction method are constructed by installing a wall 10 and then placing a reinforced steel 2 on the wall, The prestressed composite beams 3 are connected to the supporting steel 2 in a simple manner and are then connected by means of steel rods. The wall concrete 5, the slab and the bottom plate concrete 4 are laid, Etc. to complete the bridge.

The conventional pre-stressed steel-reinforced concrete composite-type raymen bridge having the above-described structure and its method of construction are superior to conventional conventional reinforced concrete raymen bridge and conventional composite type raymen bridge, The foundation can be designed to be small, but it can not be manufactured by dividing the root element and the parent element, so that the girder must be manufactured in one piece, so that the length of the girder must be made longer in the field.

And, by making the girder in the field, the length of the girder becomes long, and the weight increases, and there is a problem in the construction safety.

Accordingly, in order to solve the above-mentioned problems, a ramen bridge having a base and a wall size minimized and a construction method thereof have been proposed in Japanese Patent No. 10-0969586.

The above-described conventional raymen bridge and its construction method have a structure in which a steel beam, a concrete beam or a steel composite beam is integrally connected to the upper part of a wall, and the bridge is divided into a steel joining system, a pin joining system and a roller joining system .

Among the above methods, the strong bonding method can reduce the sectional force generated in the center beam, thereby reducing the height of the central portion and reducing the length of the central portion.

However, there is a problem that the sectional force generated at the disconnection point portion (right corner portion) increases, the discrete point portion (right corner portion) increases, and the sectional force is transmitted to the foundation, thereby increasing the size of the foundation.

The pin connection method and the roller connection method are a method in which the beams are simply mounted on the upper part of the wall, so that they are supported in a simple beam state with respect to the total composite load, thereby reducing the sectional force of the cut- Can be reduced.

However, since it is manufactured in a simple beam shape and it is mounted on the upper part of the wall, the length of the beam is long, so it needs to be manufactured near the site. Therefore, the cost of installation and installation cost of the beam is increased and the length of the beam is increased. There is a risk that safety accidents are high and there is a danger of evangelism.

Patent No. 10-0543969 Patent No. 10-0770574

In order to solve the above-mentioned problems, it is an object of the present invention to provide a cantilever member having a cantilever member, And the length of the central beam can be adjusted to reduce the length of the temporary member. Since the end of the member is connected to the front end joint, there is no danger of the conduction during the construction, The present invention aims to provide a synthetic ramen bridge using a member-type connecting structure that improves the safety of construction and reduces the length of the central beam to facilitate the construction and manufacturing of the ramen bridge and its construction method.

In order to accomplish the above object, according to the present invention, there is provided a composite type raymond bridge using a connecting structure for each member according to the present invention, A wall formed on the foundation; A cantilever member installed at an upper end of the wall; A center beam connected to the cantilever members; A structure and a bottom plate formed by placing and curing concrete in the cantilever member and the center beam; And a packaging material installed on the bottom plate.

In addition, the synthetic rammen bridge construction method using the connecting structure according to the present invention comprises steps S 1 to S 5 forming bases facing each other at regular intervals and constructing a wall on the foundation; A step (SII) of fabricating a beam receiving member and a beam connecting member to be installed on the wall; Joining the resilient supporting member and the beam connecting member to form a cantilever member (SIII); Installing a cantilever member at the upper end of the wall (SIV); Connecting a center beam between the cantilever members (S V); A step (S VI) of constructing a structure and a bottom plate by placing and curing concrete in the cantilever member and the center beam; And a packaging step (S VII) of installing a packaging material on the bottom plate.

As described above, the synthetic ramen bridge using the connecting structure according to the present invention and the construction method thereof have the following effects.

First, since the cantilever member is formed by using the beam connecting member and the beam receiving member, the advantage of minimizing the bending moment of the cutout point (right corner portion) by the connecting method and the mounting method of the beam connecting member and the beam receiving member have.

Secondly, the length of the center beam, the beam connecting member, and the bail support member are adjusted and the cantilever member is formed, thereby reducing the length of the hung member, thereby facilitating the construction and manufacturing process of the ramen bridge.

Third, the present invention has an effect that there is no danger of conduction when the joining member and the beam connecting member are connected by the front end joint.

Fourth, the present invention is advantageous in that the quality of the center beam can be easily managed by making the factory production possible by reducing the length of the center beam.

Fifth, the present invention can improve the workability by reducing the weight and length of the center beam.

Sixth, the present invention has an advantage that it can be economically manufactured and constructed by eliminating the production stand and the production hall which are required in the field production of the central beam.

Seventh, in the present invention, the center beam and the beam connecting member are simply mounted on the resilient supporting member, thereby minimizing the bending moment of the disconnecting point portion (right corner portion) The load transferred to the foundation can be reduced and the non-economic construction in which the base size becomes large can be excluded.

FIGS. 1A to 1E are a process diagram showing a construction procedure of a conventional general reinforced concrete raymond bridge,
FIGS. 2A to 2F are process drawings showing a construction sequence of a composite type ramen bridge in which a conventional prestressing composite beam is installed at a central portion of a slab of a ramen bridge,
FIGS. 3A to 3E are process drawings showing a construction sequence of a conventional pre-stressed steel-reinforced concrete composite type raymond bridge,
FIG. 4 is a view showing an example of a synthetic ramen bridge using a connection structure according to the present invention,
FIG. 5 is a view illustrating a state in which a cantilever member and a center beam of a composite ramen bridge using member-based connection structures according to the present invention are installed on a wall,
6A and 6B are views illustrating a state in which a cantilever member of a synthetic ramen bridge using a connecting structure according to the present invention is installed on a wall,
FIGS. 7A to 7G are a front view and a side view showing a front end joining method of a composite type raymond bridge using member connection structures according to the present invention;
FIGS. 8A to 8D are views illustrating an example of application of a center beam of a composite ramen bridge using girder-type connecting structures according to the present invention,
FIGS. 9A and 9B are diagrams illustrating a multispacing composite type ramen bridge using a member-based connection structure according to the present invention. FIG.
10 is a cross-sectional exemplary view showing a shear bonding structure and a rigid connecting structure according to the present invention,
11A to 11G are process diagrams illustrating a construction sequence of a synthetic ramen bridge using member-based connection structures according to the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

4 is a view illustrating an example of a synthetic ramen bridge using a connection structure according to the present invention.

As shown in this drawing, the composite type raymond bridge B using the connecting structure according to the present invention according to the present invention comprises: a foundation 100 disposed to face each other at regular intervals on the ground; A wall 110 formed on the base 100; A cantilever member 140 installed at an upper end of the wall 110; A center beam 150 connected to the cantilever members 140; A structure 160 and a bottom plate 170 formed by placing and curing concrete on the cantilever member 140 and the center beam 150; And a packaging material 180 installed on the bottom plate 170.

That is, the composite type raymond bridge B using the connecting structure according to the present invention includes a base 100, a wall 110, a cantilever member 140, a center beam 150, a structure 160, 170 and a packaging material 180 are organically coupled to each other.

Here, the base 100 and the wall 110 are integrally formed.

Further, the cantilever member 140 includes a vertically disposed resilient supporting member 120; And a beam connecting member 130 horizontally arranged and joined on the beam receiving member 120, and is installed at the upper end of the wall 110.

The flange 122 is formed at an upper portion of the flange 120. The flange 122 is formed in a shape of an I or H shape using a thick plate or a steel plate. The height of the flange 122 is formed up to the height of the upper end of the beam connecting member 130.

The beam connecting member 130 is formed in an "I" or "H" shape using a thick plate or a section steel.

The cantilever member 140 is formed by connecting the resilient supporting member 120 and the beam connecting member 130 to the L-shaped portion 124 by bolt 126 bonding.

When the cantilever member 140 is formed as described above, an elastic pad or a supporting member 128 is provided between the resilient supporting member 120 and the beam connecting member 130.

Meanwhile, the center beam 150 is formed by a pre-flex synthetic girder or a tension member which introduces a compressive force to the lower casing concrete by a prestressing load, a PSC girder or a trough And a steel girder fabricated in accordance with the present invention.

The structure 160 is formed by placing and curing concrete between the resilient supporting member 120 and the beam connecting member 130 and between the cantilever member 140 and the center beam 150.

The bottom plate 170 is formed by placing and curing concrete on the cantilever member 140 and the center beam 150.

Also, the packaging material 180 is a portion made of concrete or asphalt.

FIG. 5 is an exemplary view showing a state in which a cantilever member and a center beam of a composite ramen bridge using the connecting structure according to the present invention are installed on a wall.

As shown in this drawing, the composite type raymond bridge B using the connecting structure according to the present invention according to the present invention comprises a base 100 arranged to face each other at regular intervals; A wall 110 formed on the base 100; A cantilever member 140 installed at an upper end of the wall 110; And a center beam 150 connected to the cantilever members 140.

That is, the composite type brassiere bridge B using the connecting structure according to the present invention is a bridge in which the base 100, the wall 110, the cantilever member 140, and the center beam 150 are organically coupled.

Here, the base 100 and the wall 110 are integrally formed.

As shown in FIGS. 6A and 6B, the cantilever member 140 includes a vertically disposed support member 120; And a beam connecting member 130 horizontally arranged and joined on the resilient supporting member 120. As shown in FIG.

When the cantilever member 140 is formed as described above, an elastic pad or a supporting member 128 is provided between the resilient supporting member 120 and the beam connecting member 130.

6A and 6B are views illustrating a state in which a cantilever member of a synthetic ramen bridge using a connecting structure according to the present invention is installed on a wall,

 FIGS. 7A to 7G are a front view and a side view showing a front end joining method of a composite type raymond bridge using member connection structures according to the present invention.

As shown in these drawings, a case in which a joint member 120 and a beam connecting member 130 are welded and bolted to each other using an L-shaped steel pipe 124 is shown.

Further, there is shown a case where welding between the members of the resilient supporting member 120 and the beam connecting member 130 is performed by using the L-shaped steel 124 and bolt joining.

And a case where the abdomen and the abdomen are bolted to each other between the resilient supporting member 120 and the beam connecting member 130.

Further, there is shown a case where welding between the members of the resilient supporting member 120 and the beam connecting member 130 is performed by using the L-shaped steel 124 and bolt joining.

And the flange 122 between the bolster member 120 and the beam connecting member 130 are bolted to each other.

In addition, the present invention shows a case where a bolt connection is made between the resilient supporting member 120 and the beam connecting member 130 by a thick plate support.

And the bolt connection is made between the resilient supporting member 120 and the beam connecting member 130 by a section steel base.

8A to 8D are views showing an example of application of a center beam of a composite ramen bridge using girder connection structures according to the present invention, according to girder types, wherein Fig. 8A shows a preflex composite girder, Fig. Fig. 8C shows a PSC girder, and Fig. 8D shows a rigid girder.

That is, as shown in these drawings, the center girder 150 is formed of a preflex composite girder (see FIG. 8A) that introduces a compressive force to the lower casing concrete by a prestressing load, a steel composite girder (See FIG. 8B) or a PSC girder (see FIG. 8C) into which a tension is introduced through a tension member or a steel girder (see FIG.

9A and 9B are views showing an example of a multi-span composite type brassiam bridges using the connecting structure according to the present invention, wherein FIG. 9A shows a two-span razor bridge, and FIG. 9B shows a three- will be,

10 is a cross-sectional exemplary view showing a shear bonding structure and a rigid connecting structure according to the present invention.

Hereinafter, a synthetic rammen bridge construction using the connecting structure according to the present invention constructed as described above will be described.

11A to 11G are process diagrams illustrating a construction sequence of a synthetic ramen bridge using member-based connection structures according to the present invention.

As shown in these drawings, in the synthetic ramend bridging method using the connecting structure according to the present invention, the bases 100 are formed facing each other at regular intervals, and the walls 110 (S I); A step (SII) of fabricating a beam receiving member 120 and a beam connecting member 130 to be installed on the wall 110; Forming a cantilever member 140 by joining the beam receiving member 120 and the beam connecting member 130 (SIII); Installing a cantilever member (140) on the top of the wall (110) (SIV); Connecting the center beam 150 between the cantilever members 140; (S VI) of constructing the structure 160 and the bottom plate 170 by placing and curing concrete on the cantilever member 140 and the center beam 150; And a packaging step (S VII) for installing the packaging material 180 on the bottom plate 170.

That is, the synthetic rammen bridge construction method using the member-based connection structure according to the present invention includes the step of constructing the wall 110, the step of making the bolster member 120 and the beam connecting member 130, The cantilever member 140, the cantilever member 140, the center beam 150, the structure 160, and the bottom plate 170, Ⅵ) and the packing step (S Ⅶ) are sequentially carried out to construct a synthetic ramen bridge.

Hereinafter, a synthetic rammen bridge construction method using the connection structure according to the present invention having the above-described steps will be described in detail for each stage.

First, as shown in FIG. 11A, the construction step S I of the wall 110 is performed by forming a foundation 100 so as to oppose to each other at regular intervals on the ground and forming a wall 110 on the foundation 100, The base 100 and the wall 110 are integrally constructed.

11B), and then the beam connecting member 130 is fabricated (see FIG. 11C). In this case, as shown in FIG. 11C, ).

The flange 122 is formed on the top of the flange member 120 so that the height of the flange 122 is increased. To the height of the upper end of the connecting member 130.

The flange 122 corresponding to the outer side of the wall 110 is formed in the shape of an I or H shape by using a thick plate or a steel, And the flange 122 on the outer side of the wall 110 is connected to the beam connecting member 130 by a front end joint so that the height of the flange 122 is adjusted to form the cantilever member 140.

Further, an elastic pad or a supporting member 128 is provided on a surface of the top surface of the resilient supporting member 120, which is in contact with the wall-poured wall body 110.

An elastic pad or a supporting member 128 is also provided on the contact surface with the beam connecting member 130.

Next, the beam connecting member 130 is manufactured in the form of "I" or "H" using a heavy plate or a section steel.

Also, the length of the beam connecting member 130 can be freely changed according to the current state of the bridge, the construction and the conditions at the time of manufacture, and the section of the bridge.

Next, the cantilever member 140 forming step S III connects the supporting member 120 and the beam connecting member 130 in a front end joining manner using an L-shaped steel 124 or a thick plate.

Only the bolt 126 is used in the front end bonding or the bolt 126 is welded in parallel.

In addition, the cantilever member 140 is formed by the front end joining of the resilient supporting member 120 and the beam connecting member 130.

Here, an elastic pad or a supporting member 128 is provided on the contact surface between the resilient supporting member 120 and the beam connecting member 130.

Subsequently, the cantilever member 140 is fixed to the upper end of the formed wall body 110 with the cantilever member 140 in which the resilient supporting member 120 and the beam connecting member 130 are joined (FIG. 11D Reference).

Such cantilever member 140 makes the central beam 150 safer against conduction when installed.

Particularly, since the length of the center beam 150 is shortened due to the cantilever member 140, the risk of construction of the center beam 150 is reduced.

In addition, since the cantilever member 140 shortens the length of the center beam 150, the center beam 150 can be easily manufactured.

Subsequently, the central beam 150 connecting step S V connects the center beam 150 to the cantilever member 140 provided on the wall 110 (see FIG. 11E).

At this time, the center beam 150 is formed by a pre-flex synthetic girder or a prestressed composite girder or a PSC girder or a torsion prestressed with a tensile force through a prestressed composite girder or a prestressed material, And a steel girder fabricated in accordance with the present invention.

Since the elastic pad or the supporting member 128 is provided at the connection portion between the cantilever member 140 and the center beam 150, the center beam 150 is simply mounted on the cantilever member 140, To support the load in a simple beam form.

In particular, as described above, the connection between the cantilever member 140 and the center beam 150 is connected by the front end joint, and the moment acting on the disconnected point portion (right corner portion) in a simple state is generated according to the relative ratio of the inter- The size varies.

Therefore, the larger one of the above-mentioned structure of the front end joining system and the stronger structure is the "I" value of the section (second moment of the section) , The moment generated at the disconnecting point portion (right corner portion) of the joining method of the present invention is close to "0"

Structure of shear joint method "I" Value: 200,000㎜ ⁴

&Quot; I "value: 257,570,000 mm ⁴ (? 1288 times) (see FIG. 10)

The resilient supporting member 120 has a simple mounting surface with a front end joint.

Meanwhile, in the construction step S VI of the structure 160 and the bottom plate 170, the concrete is placed and cured in the cantilever member 140 and the center beam 150 to form the structure 160 and the cantilever member 140 140 and the central beam 150 by placing and curing concrete on the bottom plate 170 (see FIG. 11F).

Next, the packaging step (S7) completes the ramen bridge by wrapping the top surface of the bottom plate 170 using concrete or asphalt pavement 180 (see Fig. 11 (g)).

The synthetic rammen bridge construction method using the connecting structure according to the present invention having the above-described steps according to the present invention forms the cantilever member 140 using the front end joint of the disconnected point portions (right angles) The bending moment of the disconnecting point portion (right corner portion) can be minimized by the connection method and the mounting method of the resilient supporting member 120 and the beam connecting member 130 and the length of the center beam 150 can be adjusted, Since the end of the member is connected by the shear joint, there is no danger of conduction during construction, thereby improving the workability and reducing the length of the center beam 150 to facilitate the construction of the ramen bridge and the convenience of production work It is effective.

100: Foundation 110: Wall
120: Support member 122: Flange
124: L section steel 126: Bolt
128: elastic pad, supporting member 130: beam connecting member
140: cantilever member 150: center beam
160: Structure 170:
180: Packing material B: Synthetic ramen bridge

Claims (16)

A foundation (100) arranged to face each other at regular intervals on the ground; A wall 110 formed on the base 100; A cantilever member 140 installed at an upper end of the wall 110; A center beam 150 connected to the cantilever members 140; A structure 160 and a bottom plate 170 formed by placing and curing concrete on the cantilever member 140 and the center beam 150; The base 100 and the wall 110 are integrally formed and the cantilever member 140 includes a vertically disposed support member 120 )Wow; And a beam connecting member 130 horizontally disposed on the beam receiving member 120. The beam receiving member 120 is formed in a shape of "I" or "H" using a thick plate or a section steel, A flange 122 extending to a predetermined length is formed on the upper side of the resilient supporting member 120. The beam connecting member 130 is formed into an "I" or "H" shape by using a thick plate or a section steel, The cantilever member 140 is formed by connecting the supporting member 120 and the beam connecting member 130 by bolting or welding using the L-shaped steel 124. The supporting member 120 and the beam connecting member 130, a pre-flex synthetic girder in which a compression force is applied to the lower casing concrete by the centering prismatic load, a steel composite girder in which a tension force is introduced through the tension material, PSC girders with tensions introduced through them, The present invention relates to a composite raymond bridge using member-based connecting structures. delete delete delete delete delete delete delete delete Forming a base 100 facing each other at regular intervals and constructing a wall 110 on the foundation 100; A step (SII) of fabricating a beam receiving member 120 and a beam connecting member 130 to be installed on the wall 110; Forming a cantilever member 140 by joining the beam receiving member 120 and the beam connecting member 130 (SIII); Installing a cantilever member (140) on the top of the wall (110) (SIV); Connecting the center beam 150 between the cantilever members 140; (S VI) of constructing the structure 160 and the bottom plate 170 by placing and curing concrete on the cantilever member 140 and the center beam 150; And a packaging step S VII in which a packaging material 180 is placed on the bottom plate 170. The base 100 and the wall 110 are integrally constructed, And the flange 122 is extended to the upper portion of the support member 120. The beam connecting member 130 is formed by using a thick plate or a section steel And the bolster member 120 and the beam connecting member 130 are bolted to each other by using the L-shaped steel pipe 124. In this case, And an elastic pad or a supporting member 128 is installed between the supporting member 120 and the beam connecting member 130. The center beam is pressed against the lower casing concrete by the pre- Introduced preflex composite girder, a steel composite girder in which a tension is introduced through a tension material, a tension material Tensile force to the composite rigid frame bridge construction method using the member-specific connection structure characterized in that it consists of any one of the steel girder manufactured according to the introduction of the PSC girder or soteum.



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