KR102530545B1 - Rotational cross beam of bridge using removable rotary hinge and horizontal beam connectinging apparatus, girder and bridge construction methods using the same - Google Patents

Abstract

The present invention relates to a rotational transverse beam by using a detachable rotational hinge and a transverse beam connecting device, wherein one side of a rotational transverse beam is rotationally connected to a girder in advance to be folded, before the girder, on which the rotational transverse beam is set, is mounted on a bridge lower structure, such that the folded rotational transverse beam may be rotated to be connected to a transverse beam connector which is fixedly installed at the other side girder. Therefore, an adding plate may be effectively installed, thereby enabling the girder and bridge construction in a more quick and economic manner. To this end, the detachable rotational hinge comprises: both transverse beam connectors which are formed at the side surface of one side girder and the other side girder; and a transverse beam connecting device and a detachable rotational hinge of which one side is pin-coupled to the upper surface of the transverse beam connector which is fixedly installed at one side girder, and the other side is fixedly fastened to the upper surface of the rotational transverse beam.

Description

Rotating crossbeam using detachable rotary hinge and crossbeam connecting device, method of constructing girders and bridges using the same

The present invention relates to a rotary crossbeam. More specifically, one side of the rotary crossbeam is rotatably connected to one side girder in advance and set to be folded, the girder with the rotary crossbeam set is mounted on the bridge substructure, and the crossbeam connector fixed to the other girder by rotating the folded rotary crossbeam In connecting to, the girder spacing can be adjusted using the detachable rotation hinge and the crossbeam connecting device, so that the rotational crossbeam can be equipped with a girder spacing function. It's about the construction method.

Figure 1a shows a construction example of a bridge equipped with a conventional concrete crossbeam.

That is, it can be seen that a plurality of girders 20 are spaced apart from each other in the transverse direction of the bridge substructure 10 such as piers and abutments, and the slab 40 is integrally constructed on the upper surface of the girders Able to know.

At this time, between the transverse directions of the girders, both ends of the cross beams 50 are connected to the abdomen of the girder 20 so that the girder 20 can control transverse buckling and deformation.

This crossbeam 50 used a method of installing a conventional formwork (not shown) separately between the girder and the girder abdomen and integrating it with the girder by pouring concrete,

The workability and workability of the work of installing and dismantling formwork for crossbeams and pouring and curing concrete was low, which inevitably became a factor in delaying the construction period and increasing construction costs.

Figures 1b and 1c show a construction example of a bridge equipped with a conventional steel crossbeam 31.

That is, the crossbeam 50 is manufactured as a steel crossbeam in order to quickly install the crossbeam while minimizing the lifting load, rather than forming the crossbeam by pouring concrete.

Accordingly, according to FIG. 1B, after both ends of the fixing bolts 30 pass through the girder 20 horizontally, the fixing bolts 530 pass through both sides of the girder so that the connecting crossbeam 40 is fixed. it can be seen that

It can be seen that both connecting crossbeams 40 and the crossbeam 50 are connected to each other by using a fastener 52 including a padding plate for the crossbeam 50 between both connecting crossbeams 40 spaced apart from each other.

That is, since both connecting crossbeams 40 and crossbeams 50 manufactured forcibly can be connected by installing crossbeams 50 even though their weight is not large compared to the same cross-sectional area compared to concrete crossbeams, workability and workability are relatively high. There are benefits to improving.

However, since the crossbeam 50 must be connected between both connecting crossbeams 40 through high-altitude work in the field, a working crane (not shown) that the operator can work with is required by the method of penetrating the girder. can only be

In order to lift and install the crossbeam 50 between the connecting crossbeams 40, separate lifting equipment is required.

That is, both the working crane and the lifting equipment must be used, but depending on the site, it is difficult to approach the working crane and the lifting equipment, which causes a problem in that the construction is limited.

Figure 1c shows a construction example of a bridge equipped with a conventional steel pipe crossbeam 60.

That is, use a steel crossbeam, but make a steel pipe, fix the connecting plate 61 between the girders 20, and install the connecting steel pipe crossbeams 62 on the connecting plate 61, respectively,

Between the steel pipe crossbeams 62 for connection, both ends of the rotary clamp are rotated so that the rotation clamp is rotated to adjust the separation distance between the steel pipe crossbeams 62 for both connections. Restraining the girder 10 in the transverse direction A steel pipe crossbeam 60 is introduced.

Accordingly, when the connecting plate 61 and the steel pipe crossbeam 62 for connection are installed on the girder 10 in advance and then mounted, there is an advantage that only the rotary clamp can be installed on site, but a separate lifting equipment for the rotary clamp is also required. It is necessary, and there is a limit that a working crane is also required, and there is a problem that it is not easy to rotate the rotating clamp by manpower.

Figure 1d shows a construction example of a bridge equipped with a conventional rotating crossbeam 72.

The advantage of this rotating crossbeam 72 is that the crossbeam is set to be folded on the girder in advance without lifting the crossbeam using a separate lifting equipment, and then the girder is rotated after mounting the girder. The point is that it is possible to avoid using the lifting equipment for lifting the conventional crossbeam.

Accordingly, according to FIG. 1D, the rotary crossbeam 72 is installed so that the rotary crossbeam 72 is folded in a hinged manner to the rotary connector 71 previously installed on the one side girder 10.

Therefore, when lifting the girder, the rotating crossbeam 72 is set parallel to the one side girder so that it is set together when lifting and mounting the girder,

In the field, a rotating crossbeam 71 is rotated by 90 degrees, and a method of connecting the rotary crossbeam 71 and the buried connector 73 using a padding plate 74 with the buried connector 73 of an adjacent girder is used. .

However, since the embedded connector 73 connected to the rotating crossbeam 72 is fixed and set in advance on one side girder and the adjacent girder, there is a case where a step in the lateral direction occurs due to construction errors and the lateral and longitudinal gradients of the bridge. often happens

Therefore, according to FIG. 1D, in the field, before installing the padding board 74 as a fastener, a temporary padding board 75 is installed to temporarily fix the rotating crossbeam 71 and the buried connector 73 to each other,

In response to this temporary fixed state, a padding plate 74 is separately manufactured and prepared,

After removing the temporary padding board 75,

Only the other side of the rotating crossbeam 71 is finally connected to the buried connector 73 using the padding plate 74 and the connecting nut.

Therefore, when using the temporary padding board 75, installation and disassembly of the temporary padding board 75 for temporarily fixing the rotating crossbeam 71 and the buried connector 73 to each other, If the work that needs to be manufactured separately is repeated There was a problem that workability and workability were degraded, which inevitably became a factor in delaying the construction period and increasing construction costs.

Republic of Korea Patent No. 10-0700402 (Title of invention: Ganga Robo and its construction method, publication date: July 21, 2006) Republic of Korea Patent Publication No. 10-2008-0099061 (title of invention: Ganga Robo for connecting PSC beams of PSC bridges, publication date: November 12, 2008) Republic of Korea Patent No. 10-1717976 (Title of Invention: Bridge Superstructure with Girder Correction and its Construction Method, Publication Date: April 5, 2017) Republic of Korea Patent No. 10-2080912 (title of invention: steel crossbeam applied to PSC girder bridge and its construction method, publication date: September 25, 2019)

Therefore, the present invention allows the rotary crossbeam and the crossbeam connector to be connected to each other between one side girder and the other side girder, but to temporarily fix and set the rotary crossbeam and the crossbeam connector to each other. It is a technical task to solve the problem of providing a rotary crossbeam using a detachable rotary hinge and a crossbeam connecting device that enables faster and more efficient rotary crossbeam construction, and a girder and bridge construction method using them.

In addition, the present invention is a detachable type in which the rotary crossbeam is rotated and connected between the final one-side girder and the adjacent girder, and then the rotary crossbeam is connected to the one-side girder and the adjacent girder through a fastening device, respectively, and the detachable rotary hinge is dismantled and reused. It is a technical task to solve the provision of a rotating crossbeam using a rotating hinge and a crossbeam connecting device, and a girder and bridge construction method using the same.

In addition, the present invention installs the rotating crossbeam between one side girder and the other side girder using a detachable rotating hinge, but using a padding plate and fasteners, one side and the other side of the convoluted crossbeam are connected to the transverse connectors of the one side girder and the other side girder, respectively. It is a technical task to solve the provision of a detachable rotary hinge and a rotary crossbeam using a crossbeam connecting device that can be finally connected through a fastening device to stably connect and install a rotary crossbeam, and a girder and bridge construction method using the same.

Therefore, the rotational crossbeam using the detachable rotary hinge and crossbeam connecting device of the present invention for achieving the above object, both crossbeam connectors formed on the side of one side girder and the other side girder; And a detachable rotary hinge including an L-shaped steel, one side of which is pinned to the upper surface of the crossbeam connector fixed to one side girder, and the other side is fastened to the upper surface of the rotary crossbeam. The crossbeam connector includes one side of the rotary crossbeam. It includes a connecting plate fastened and fixed to the side surfaces of one side girder and the other side girder by fixing bolts so that the crossbeam connecting member connected to the other side is integrally formed on the side surfaces of the one side girder and the other side girder. to form,
The operator on the working crane (C) is allowed to approach the upper and lower sides of the other side of the rotary crossbeam using a crossbeam connecting device to the crossbeam connector of the other side girder, but the crossbeam connecting device is a hydraulic jack installed on the other side of the rotary crossbeam. The hydraulic cylinder is constrained by the second cylinder fixture installed on the crossbeam connector of the other girder, and the extended hydraulic cylinder is restored so that the crossbeam connector of the other girder approaches the other side of the rotary crossbeam, and is fixed and installed on the other side of the rotary crossbeam. The restored hydraulic cylinder is restrained by the first cylinder fixture.

Therefore, in the girder using the detachable rotary hinge and the rotary crossbeam using the crossbeam connecting device of the present invention to achieve the above object, one side is pin-coupled to the upper surface of the crossbeam connector fixed to the side, and the other side is fastened and fixed to the upper surface of the rotary crossbeam. One side girder with a detachable rotating hinge installed; After being set in a folded state integrally on the side of the one side girder, after being installed on one side girder, a rotating crossbeam connected to the crossbeam connector of the other side girder by rotation to serve as a crossbeam of the bridge; And the hydraulic cylinder of the hydraulic jack installed on the other side of the rotary crossbeam is constrained by the second cylinder fixture installed on the crossbeam connector of the other girder, and the extended hydraulic cylinder is restored so that the crossbeam connector of the other girder approaches the other side of the rotary crossbeam. and a crossbeam connecting device for restraining the restored hydraulic cylinder by the first cylinder fixture fixedly installed on the other side of the rotary crossbeam.

Accordingly, the bridge construction method using the detachable rotary hinge and the rotary crossbeam using the crossbeam connecting device of the present invention to achieve the above object is, (a) one side is pin-coupled to the upper surface of the crossbeam connector fixed to the side, and the other side is the rotary crossbeam A detachable rotary hinge including an L-beam to be fastened and fixed to the upper surface of the is installed, and mounting one side girder in a state where the rotary crossbeam is integrally folded on the side of the bridge lower structure (A); (b) rotating the folded rotary crossbeam using the detachable rotary hinge to the crossbeam connector fixedly installed on the side of the other girder mounted on the bridge lower structure (A), but closely installing it; and (c) finally connecting one side and the other side of the rotary crossbeam between one side girder and the other side girder to both crossbeam connectors of one side girder and the other side girder using a fastening device.

The rotary crossbeam according to the present invention can be installed on one side girder so as to be easily rotatable without rotational interference, and the girder spacing can be easily adjusted, so that the rotary crossbeam is provided with a girder spacing function, enabling simpler and more efficient crossbeam construction. It is possible to provide a rotating crossbeam using a rotating hinge and a crossbeam connecting device, and a girder and bridge construction method using the same.

The rotary crossbeam according to the present invention is connected to the crossbeam connector of one side girder by a fastener, and the crossbeam connector of the other girder is connected to the crossbeam connector of the other girder by a fastener as well. Rotational type using detachable rotary hinge and crossbeam connecting device enabling quicker rotational crossbeam construction because the rotary heirloom is connected between one side girder and the other side girder using the final fastening device in a state where they are constrained to each other using the crossbeam connecting device It is possible to provide crossbeams, girders and bridge construction methods using them.

The crossbeam connecting device according to the present invention includes a hydraulic cylinder and first and second cylinder connectors that bring the rotary crossbeam and the crossbeam connector into close proximity to each other, so that the operator can operate the hydraulic jack simply by operating the hydraulic jack, which is more suitable for the field It is possible to provide a rotary crossbeam using a detachable rotary hinge and a crossbeam connecting device, and a girder and bridge construction method using the same.

Since the crossbeam connecting device according to the present invention can also be repeatedly used by installing and dismantling between both girders, it is possible to provide a rotary crossbeam using a very economical detachable rotary hinge and a crossbeam connecting device, and a girder and bridge construction method using the same. will do

When the rotary crossbeam is installed between the girders using the crossbeam connecting device according to the present invention, there is no need to basically lift the rotary crossbeam, and when one side girder is mounted, it is lifted together and it is possible to construct the crossbeam using only a working crane. It is possible to provide a rotating crossbeam using a detachable rotary hinge and a crossbeam connecting device capable of efficient bridge construction, and a girder and bridge construction method using the same.

Figure 1a is a construction example of a bridge equipped with a conventional concrete crossbeam,
Figure 1b and Figure 1c is a construction example of a bridge equipped with a conventional steel crossbeam
1d is a construction example of a bridge equipped with a conventional steel pipe crossbeam;
Figures 2a and 2b is an example of the operation of the rotary crossbeam using the detachable rotary hinge and crossbeam connecting device of the present invention,
Figures 2c and 2d is an example of girder installation using a rotating crossbeam using a crossbeam connecting device, a detachable rotary hinge and a crossbeam connecting device of the present invention
Figures 3a, 3b, 3c and 3d show a flow chart of a bridge construction method using a rotating crossbeam using a detachable rotary hinge and a crossbeam connecting device of the present invention.

Hereinafter, embodiments of the present invention will be described in detail so that those skilled in the art can easily practice with reference to the accompanying drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a certain component is said to "include", it means that it may further include other components without excluding other components unless otherwise stated.

[The present invention is a rotary crossbeam 200 using a detachable rotary hinge and a crossbeam connecting device and a girder 100 using the same]

Figures 2a and 2b is an example of the operation of the rotary crossbeam (200, simply referred to as a rotary crossbeam) using the detachable rotary hinge and the crossbeam connecting device of the present invention, Figures 2c and 2d are the crossbeam connecting device 400 of the present invention It shows an example of installation of a rotary crossbeam 200 using a detachable rotary hinge and a crossbeam connecting device 400.

Referring to FIGS. 3A and 3B, the girder 100 includes a PSC girder mounted on the bridge substructure A such as abutments and piers.

These girders 100 are mounted by spacing a plurality of them in the lateral direction in the bridge substructure (A), and referring to FIG. 2d, a crossbeam connector ( 300) and the crossbeam connecting device 400 to connect the girders 100 to each other in the transverse direction, the spacing can be adjusted, so that the rotational crossbeam can have a girder spacing function.

At this time, referring to FIG. 3B, at least one rotary crossbeam 200 is installed between the girders, and when manufacturing the girder 100, the rotary crossbeam 200 is used in advance by using the crossbeam connector 300 to girder ( 100) It is set on the side and mounted on the bridge substructure (A) together.

In addition, the crossbeam connector 300 is fixedly installed on the side of the girder 100 at the position where the rotary crossbeam 200 is installed.

Referring to FIG. 3C, one side of the rotary crossbeam 200 is rotatably connected to the crossbeam connector 300 of one girder 100a, and the other side is connected to the crossbeam connector 300 of the other girder 100b. After approaching using the device 400, both one side and the other side are connected using the fastening device 500 to both cross-beam connectors 300 using the cross-beam connecting device 400.

Accordingly, according to FIGS. 2a, 2b, 2c and 2d, it is possible to check the rotary crossbeam 200 and the girder 100 using the same, and the girder 100, the rotary crossbeam 200, the crossbeam connector 300, the crossbeam A connecting device 400 and a fastening device 500 are included.

First, as shown in FIGS. 2A and 2B, when looking at the PSC girder as a standard, the girder 100 has an I-shaped cross section and includes a vertical block-shaped abdomen 120 between the upper flange 110 and the lower flange 130. And, this abdomen 120 will be referred to as the side of the girder 100.

These girders 100 are spaced apart from each other in the transverse direction and mounted on the bridge substructure (A). According to FIG. 2b, one side girder (100a, left girder in FIG. In this case, it can be seen that the rotary crossbeam 200 is installed between the right girders).

In addition, referring to FIGS. 3A and 3B, the girders 100: 100a and 100b are extended and supported in the bridge substructure A in the longitudinal direction, and a plurality of girders 100: 100a and 100b are installed adjacent to each other in the transverse direction. It can be seen that .

Next, as shown in FIGS. 2A and 2B, the rotational crossbeam 200 is set in a state in which it is integrally folded together with the crossbeam connector 300 on the side of the one side girder 100a in advance, and then rotates after the one side girder 100a is mounted. As a result, it is connected to the crossbeam connector 300 of the other side girder 100b and serves as a crossbeam of the bridge.

This rotary crossbeam 200 uses an I-shaped steel beam to include an upper flange 210, an abdomen 220 and a lower flange 230, and thus a crossbeam connector 300 directly connected to the rotary crossbeam 200 The cross beam connecting member 330 is also formed of an I-shaped steel beam.

Referring to Figs. 2a and 2b, the rotary crossbeam 200 is rotated using a detachable rotary hinge 240 on one side girder 100a.

Specifically, as shown in FIG. 2B, it can be seen that the detachable rotary hinge 240 serves to rotate the rotary crossbeam 200 based on the crossbeam connector 300 of the one side girder 100a.

That is, one side of the rotary crossbeam 200 is rotatably connected to one side girder 100a by the crossbeam connector 300, but until the mounting, the other side of the rotary crossbeam 200 is a shear connector on the side of one side girder 100a. Temporarily adhered and fixed by the temporary fixture 250 containing,

As shown in FIG. 2C, after the one side girder 100a together with the rotary crossbeam 200 is installed on the bridge substructure (A), the folded rotary crossbeam 200 is rotated using the detachable rotary hinge 240,

It is connected to the crossbeam connecting member 330 on the side of the other girder 100b by using the crossbeam connecting device 400.

At this time, it can be seen that the L-shaped steel is used as the detachable rotary hinge 240 to make installation and disassembly very easy.

That is, according to FIG. 1d, the conventional rotary crossbeam is pinned to the hinge connector embedded on the side of the girder so that the rotary crossbeam is hinged and rotated, but in this case, since the hinge connector is permanently installed, it may be vulnerable to corrosion, etc. On the other hand, if a defect occurs in the pin coupling, the risk of separation may occur.

One side of the detachable rotary hinge 240 of the present invention is pin-coupled to the upper surface of the crossbeam connector 300 fixed to one side girder 100a, and the upper surface of the rotary crossbeam 200. Rotating crossbeam 200 After rotation,

Since the detachable rotary hinge 240 can be dismantled from the rotary crossbeam 200 other than the one side girder 100a and reused, it can be seen that a more rapid and economical rotary crossbeam 200 can be installed.

In addition, according to Figures 2c and 2d, one side of this rotary crossbeam 200 is connected to the crossbeam connector 300 of one side girder 100a by a detachable rotation hinge 240 so that the rotation is not hindered by the crossbeam connector 300 ) and the rotary crossbeam 200 are spaced apart from each other,

It can be seen that the other side of the rotary crossbeam 200 is also spaced apart from each other to be connected to the crossbeam connector 300 of the other side girder 100b so as not to interfere with rotation.

In this way, the rotating crossbeam 200 rotated to be spaced apart from both crossbeam connectors 300 of one side girder 100a and the other side girder 100b, the crossbeam connecting device 400 and the fastening device 500 including the final padding Use it to make the final connection.

After installing the fastening device 500, a plurality of fastening holes h are formed in the abdomen 220 of the rotary crossbeam 200 so that the fastening bolts and nuts of the fastening device 500 can be fastened.

Next, the crossbeam connector 300 serves to connect one side and the other side of the rotary crossbeam 200 to the side surfaces of one side girder 100a and the other side girder 100b, respectively, as shown in FIGS. 2A and 2B, It includes a plate 310, a fixing bolt 320, and a cross beam connecting member 330.

First, as shown in FIGS. 2A and 2B, the connecting plate 310 is used to integrally form the crossbeam connecting member 330 to which the rotary crossbeam 200 is connected to the side surfaces of one side girder 100a and the other side girder 100b, respectively. As such, for example, a square vertical steel plate may be used,

It is fastened and fixed to the side surfaces of one side girder 100a and the other side girder 100b by a plurality of fixing bolts 320, and is integrated in advance when manufacturing the girders 100: 100a and 100b.

Next, the fixing bolt 320 is for integrally fixing the connecting plate 310 to the side surfaces of one side girder 100a and the other side girder 100b, as shown in FIGS. 310) serves to be pre-fastened to the side of one side girder and the other side girder (100b).

It is preferable to install the fixing bolt 320 through one side girder 100a and the other side girder 100b, but it does not matter if it is installed only at a certain depth on the side of one side girder 100a and the other side girder 100b,

It can be seen that the connecting plate 310 is fastened and fixed to the side of one side girder and the other side girder 100b by a plurality of fixing bolts 320.

Next, the crossbeam connecting member 330 serves to connect one side of the rotary crossbeam 200 to the connecting plate 310 using the fastening device 500, as shown in FIGS. 2A and 2B, and the rotary crossbeam ( 200) is formed by integrating it into the connecting plate 310.

Since the I-shaped steel beam is mainly used as the rotary crossbeam 200, in response to this, the steel beam of the I-shaped cross section is formed integrally with the connecting plate 310, and the extension length is the fastening device 500 including the padding plate It is enough to secure a working space for connecting the rotary crossbeam 200.

In addition, after installing the fastening device 500, a plurality of fastening holes h are formed in the cross beam connector 330 so that the fastening bolts and nuts of the fastening device 500 can be fastened.

Accordingly, the fastening holes (h) of the crossbeam connecting material 330 and the rotary crossbeam 200 are in communication with each other with the fastening holes (h) of the backing plate 510, and the final The fastening device 500 can be installed.

Next, as shown in FIGS. 2C and 2D, the crossbeam connecting device 400 brings the other side of the rotary crossbeam 200 close to the crossbeam connector 300 of the other girder 100b by the hydraulic jack 420, and then fastens it. It serves to connect each other using the device 500.

One side and the other side of the rotating crossbeam 200 discussed above are initially set by being rotated so as to extend in the transverse direction between both crossbeam connectors 300, and this early setting state is Not even connected

In particular, the other side of the rotary crossbeam 200 is spaced apart from the crossbeam connector 300 of the other side girder 100b, and manufacturing errors of the girders 100: 100a, 100b Due to transverse deformation due to construction errors, construction errors, etc. A step may occur based on the upper flanges of the rotary crossbeam 200 and the crossbeam connector 300, and it may be in an excessively spaced state.

Accordingly, in the present invention, the other side of the rotary crossbeam 200 allows the crossbeam connector 300 of the other side girder 100b to be approached, and the operator on the work crane C can simply connect each other by the fastening device 500 let it be

To this end, the crossbeam connecting device 400 is to include a hydraulic jack housing 410, a hydraulic jack 420, a first cylinder fixture 430, and a second cylinder fixture 440, as shown in FIGS. 2c and 2d, The hydraulic cylinder 421 of the hydraulic jack 420 installed on the other side of the crossbeam 200 is constrained by the second cylinder fixture 440 installed on the crossbeam connector 300 of the other side girder 100b, and the extended hydraulic cylinder ( 421) is restored so that the crossbeam connector 300 of the other side girder 100b approaches the other side of the rotary crossbeam 200, and is restored by the first cylinder fixture 430 fixed to the other side of the rotary crossbeam 200. The hydraulic cylinder 421 is restrained.

Accordingly, the hydraulic jack housing 410 is a housing composed of a lower plate and a diaphragm for accommodating the hydraulic jack 420 so that the hydraulic jack 420 can be seated and operated, as shown in FIGS. 2C and 2D, and the hydraulic jack 420 is seated and operated. of the upper flange 210 and the lower flange 230 on the other side of the rotary crossbeam 200 so that the hydraulic jack 420 is accommodated in the support diaphragm 411 to be supported by transmitting the reaction force generated when the rotary crossbeam 200 is supported. The lower plate 412 is installed on the upper and lower surfaces to be detachable up and down, respectively.

Accordingly, the hydraulic jack housing 410 is installed up and down the other side of the rotary crossbeam 200, and when the connection of the rotary crossbeam 200 is finally completed, it is removed and reused to install the rotary crossbeam on other girders.

As shown in FIGS. 2C and 2D, the hydraulic jack 420 is accommodated in a hydraulic jack housing 410 that is detachably installed on the other side of the rotary crossbeam 200 and is operated so that the rod-shaped hydraulic cylinder 421 is While extending and restoring horizontally, the other side of the rotary crossbeam 200 and the crossbeam connector 300 of the other side girder 100b are spaced apart so that the backing plate 510 can be installed immediately.

At this time, the hydraulic system 422 for supplying hydraulic pressure to the hydraulic jack 420 to operate the hydraulic cylinder 421 is mounted and operated on a working crane (C, not shown) on which the worker is riding, and is provided with a separate hydraulic facility. It is advantageous to quickly install and dismantle the crossbeam connecting device 400 so that it does not have to be done.

To this end, the hydraulic system 422 connects a hydraulic line for supplying hydraulic pressure to the hydraulic jack housing 410, supplies hydraulic pressure to the hydraulic jack 420 installed in the hydraulic jack housing 410, and controls operation.

At this time, the hydraulic cylinder 421 has an extended length so that it can be moved and restored from the body of the hydraulic jack to the upper surface of the crossbeam connector 300 of the other girder 100b.

As shown in FIGS. 2C and 2D, the first cylinder fixture 430 guides the movement of the hydraulic cylinder 421 of the hydraulic jack 420 while using a binding member 434 such as a fixing nut so that the hydraulic cylinder 421 is It serves to bind on the upper surface of the other side of the rotary crossbeam 200.

The first cylinder fixture 430 is formed on the upper surface of the other side of the rotary crossbeam 200 at a position spaced apart from the hydraulic jack housing 410, and the hydraulic cylinder 421 in the form of a bar member is dug so that it can move through It includes a vertical support plate 431 with grooves and a lower fixing plate 432 for fixing the vertical support plate 431 to the upper surface of the other side of the rotary crossbeam 200.

Accordingly, the hydraulic cylinder 421 is seated in the cylinder groove 433 of the vertical support plate 431 and is guided so that the hydraulic cylinder 421 can be moved through a binding tool 434 such as a fixed nut. It can be seen that it can be fastened and fixed to (431) to limit movement.

As shown in FIGS. 2C and 2D, the second cylinder fixture 440 is installed vertically and downward on the other side of the rotary crossbeam 200 to restrain the hydraulic cylinder 421 of the hydraulic jack 420. And if it is to be moved by guide, the second cylinder fixture 440 constrains and guides the hydraulic cylinder 421 of the hydraulic jack 420 extending from the upper surface of the crossbeam connector 300 of the other girder 100b to move will play a role

For example, the hydraulic cylinder 421 is installed on the upper surface of the crossbeam connector 300 of the other girder 100b in a state where the hydraulic cylinder 421 is not restrained up and down to the other side of the rotary crossbeam 200 by using the first cylinder fixture 430. 2 When the hydraulic cylinder 421 extended by the cylinder fixture 440 is restrained and then the hydraulic jack 420 is restored, the crossbeam connector 300 of the other side girder 100b naturally moves to the other side of the rotary crossbeam 200. can be approached to the side.

Accordingly, the second cylinder fixture 440 also guides the movement of the hydraulic cylinder 421 of the hydraulic jack 420 while using a binding tool 444 such as a fixing nut so that the hydraulic cylinder 421 is attached to the cross beam of the other girder 100b. It serves to be restrained on the upper surface of the connector 300.

The second cylinder fixture 440 is formed on the upper surface of the crossbeam connector 300 of the other girder 100b so that the hydraulic cylinder 421 extending from the hydraulic jack housing 410 can be restrained and guided. A vertical support plate 441 with a groove formed so that the hydraulic cylinder 421 in the form of a member can move through it, and a lower fixing plate for fixing the vertical support plate 441 to the upper surface of the crossbeam connector 300 of the other girder 100b. (442).

Accordingly, the hydraulic cylinder 421 is seated in the cylinder groove 443 of the vertical support plate 441 and is guided so that it can move. It can be seen that it can be fastened and fixed to (441) to limit movement.

Next, the fastening device 500 connects one side of the rotary crossbeam 200 to one side of the girder 100a, the backing plate 510, and a fastener 520 such as a fixing bolt and a nut, as shown in FIG. 3C, It serves to finally connect the other side of the rotary crossbeam 200 to the other side girder 100b, the padding plate 510, and fasteners 520 such as fixing bolts and nuts.

That is, both one side and the other side of the rotary crossbeam 200 of the present invention are directly connected to one side girder 100a and the other side girder 100b with the fastening device 500, and the detachable rotary hinge 240 is the rotary crossbeam 200 Since only the rotation of the rotational crossbeam 200 can be stably installed.

In addition, in the present invention, one side of the rotary crossbeam 200 is spaced apart from the crossbeam connector 300 of one side girder 100a by a detachable rotary hinge 240, and the other side of the rotary crossbeam 200 is a crossbeam connecting device 400 Since it is spaced apart by being close to the crossbeam connector 300 of the other side girder 100b by using, the worker can use the previously prepared backing plate 510 as it is, so there is no need to use a temporary backing plate separately as in the prior art, prompt Installation work of the fastening device 500 is possible, so workability and workability can be secured.

[Bridge construction method using a rotary crossbeam 200 using a detachable rotary hinge and a crossbeam connecting device in the present invention]

3a, 3b, 3c and 3d show a flowchart of a bridge construction method using the rotary crossbeam 200 of the present invention.

The bridge construction method using the detachable rotary hinge and the rotary crossbeam 200 using the crossbeam connecting device is such that the rotary crossbeam 200 is formed in advance in a folded state by the detachable rotary hinge 240 on one side girder 100a described above. do,

After the rotary crossbeam 200 is installed on one side girder (100a) formed in a folded state and the other side girder (100b) is installed together,

The worker on board the worker crane (C) rotates the rotary crossbeam 200 of the mounted one girder (100a), and then uses the crossbeam connecting device 400 to get close to the crossbeam connector 300 of the other girder (100b). After making it

The crossbeam connector 300 of one side girder 100a and one side of the rotary crossbeam 200 are finally connected with the fastening device 500, and the crossbeam connector 300 of the other girder 100b and the other side of the rotary crossbeam 200 After the final connection to the fastening device 500,

It can be said to be a method of constructing a bridge by dismantling and reusing the crossbeam connecting device 400.

Accordingly, as shown in FIG. 3A, the girder 100 using the rotary crossbeam 200 and the crossbeam connector 300 is prepared and mounted on the bridge lower structure (A).

First, the bridge substructure (A) will be examined based on the piers, and these piers are reinforced concrete structures extending in the transverse direction so that the girder 100 can be mounted on the ground. A plurality of are spaced apart in the transverse direction, and the girder 100 extends in the longitudinal direction.

In the present invention, in the plurality of girders 100, one side girder 100a and the other side girder 100b will be examined based on two, and the other girders are rotary on one side girder 100a and the other side girder 100b. The work of installing the crossbeam 200 is repeated.

First, the crossbeam connector 300 is pre-integrated to the side surfaces adjacent to each other of one side girder 100a and the other side girder 100b, and includes a connecting plate 310, a fixing bolt 320, and a crossbeam connecting member 330. It has already been seen that it is formed to do so.

Next, the rotary crossbeam 200 uses an I-shaped steel beam including an upper flange 210, an abdomen 220, and a lower flange 230, but between one side girder 100a and the other side girder 100b and the side You can determine the extension length based on the distance of

One side of this rotary crossbeam 200 is pin-coupled to the crossbeam connector 300 formed on the side of one side girder 100a in advance by a detachable rotary hinge 240, and the other side is a temporary fixture including a shear connector because it is before mounting. By (250), it is temporarily fixed in close contact with one side girder (100a) to enable stable mounting work.

As a result, the crossbeam connector 300 and the rotary crossbeam 200 coupled by the detachable rotary hinge 240 are pre-installed on one side girder 100a, and the crossbeam connector 300 is installed in advance on the other girder 100b. it can be known that

Next, as shown in FIG. 3B, the girder 100 using the prepared rotary crossbeam 200 and the crossbeam connector 300 is mounted on the bridge lower structure A, and the rotary crossbeam 200 is rotated.

Accordingly, the present invention finds that the rotary crossbeam 200 is pre-installed on the girder 100, so that additional lifting equipment is not required for the construction of the crossbeam, and the rotary crossbeam 200 can also be installed when the girder 100 is mounted. can

Next, as shown in FIGS. 3C and 3D, one side and the other side of the rotary crossbeam 200 set by the crossbeam connecting device 400 between one side girder 100a and the other side girder 100b are connected to one side girder 100a and the other side. The crossbeam connector 300 of the other side girder 100b is finally connected using the fastening device 500, and the crossbeam connecting device 400 is dismantled.

That is, as shown in FIG. 3c, the rotational crossbeam 200 connected to the mounted one side girder 100a by the detachable rotation hinge 240 is rotated so that the other side is positioned at the crossbeam connector 300 of the other side girder 100b. at,

Using a working crane, the operator and the crossbeam connecting device 400 are mounted, and the crossbeam connecting device 400 is installed on the other side of the rotary crossbeam 200.

Accordingly, the crossbeam connecting device 400 is formed to include a hydraulic jack housing 410, a hydraulic jack 420, a first cylinder fixture 430, and a second cylinder fixture 440,

The hydraulic jack housing 410, the hydraulic jack 420, and the first cylinder fixture 430 are installed above and below the rotary crossbeam 200, and the second cylinder fixture 440 is the crossbeam connector 300 of the other girder 100b. ) to be installed.

As a result, the hydraulic cylinder 421 is installed on the upper surface of the crossbeam connector 300 of the other side girder 100b in a state where the hydraulic cylinder 421 is not restrained up and down to the other side of the rotary crossbeam 200 using the first cylinder fixture 430. When the hydraulic cylinder 421 extended by the cylinder fixture 440 is restrained and then the hydraulic jack 420 is restored, the crossbeam connector 300 of the other side girder 100b naturally moves to the other side of the rotary crossbeam 200. can get close.

At this time, the crossbeam connector 330 constituting the crossbeam connector 300 of the one side girder 100a and the other side girder 100b is formed with a plurality of fastening holes h so that the fastening device 500 is installed, Correspondingly, a plurality of fastening holes h are formed in the abdomen 220 of the rotary crossbeam 200 so that the fastening device 500 can be installed,

One side and the other side of the rotary crossbeam 200 are also spaced apart from each other to a position where the final connection with the crossbeam connecting member 330 is possible, so that the crossbeam connecting member 330 and the rotating crossbeam 200 have a padding plate 510 in the fastening hole (h) It is possible to install the final fastening device 500 by fastening bolts and nuts passing through the fastening holes (h) and communicating with each other and passing through the fastening holes (h).

As a result, as shown in FIG. 3D, after the rotary crossbeam 200 is finally connected to both crossbeam connectors 300 of one side girder 100a and the other side girder 100b by the fastening device 500, the crossbeam connecting device on the working crane 400 is dismantled, and the detachable rotary hinge 240 is also dismantled to additionally connect the rotary crossbeam to the other side girder 100a and the other side girder 100b.

When the construction of these rotary crossbeams 200 is completed, bridge construction is performed by slab construction.

The above description of the present invention is for illustrative purposes, and those skilled in the art can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting. For example, each component described as a single type may be implemented in a distributed manner, and similarly, 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 detailed description above, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts should be construed as being included in the scope of the present invention. do.

100: girder
100a: one side girder 100b: other side girder
110: upper flange 120: abdomen
130: lower flange
200: Rotating crossbeam using detachable rotary hinge and crossbeam connecting device (rotary crossbeam)
210: upper flange 220: abdomen
230: lower flange 240: detachable rotation hinge
250: temporary fixture
300: cross beam connection
310: connecting plate 320: fixing bolt
330: cross beam connecting material 400: cross beam connecting device
410: hydraulic jack housing 411: support plate
420: hydraulic jack
421: hydraulic cylinder 422: hydraulic system
430: first cylinder fixture
431: vertical support plate 432: lower fixing plate
433: cylinder groove 434: binding sphere
440: second cylinder fixture
441: vertical support plate 442: lower fixing plate
443: cylinder groove 444: binding sphere
500: fastening device
510: back plate 520: fastener
A: bridge substructure h: fastening hole

Claims (10)

Both cross-beam connectors 300 formed on the sides of one side girder 100a and the other side girder 100b; And a detachable rotary hinge 240 including an L-beam to which one side is pin-coupled to the upper surface of the crossbeam connector 300 fixed to one side girder 100a and the other side is fastened to the upper surface of the rotary crossbeam 200. The crossbeam connector 300 is a fixing bolt so that the crossbeam connector 330 to which one side and the other side of the rotary crossbeam 200 are connected is integrally formed on the side surfaces of one side girder 100a and the other side girder 100b, respectively. It includes a connecting plate 310 fastened and fixed to the side surfaces of one side girder 100a and the other side girder 100b by 320, and is formed in advance when one side girder 100a and the other side girder 100b are manufactured. The operator on the crane (C) uses the crossbeam connecting device 400 so that the upper and lower sides of the other side of the rotary crossbeam 200 approach the crossbeam connector 300 of the other girder 100b using the crossbeam connection device 400, and the crossbeam connection The apparatus 400 is such that the hydraulic cylinder 421 of the hydraulic jack 420 installed on the other side of the rotary crossbeam 200 is constrained by the second cylinder fixture 440 installed on the crossbeam connector 300 of the other girder 100b. And, by restoring the extended hydraulic cylinder 421, the crossbeam connector 300 of the other girder 100b approaches the other side of the rotary crossbeam 200, and the first cylinder fixed to the other side of the rotary crossbeam 200 A rotary crossbeam using a detachable rotary hinge and a crossbeam connecting device to restrain the hydraulic cylinder 421 restored by the fixture 430. According to claim 1,
The detachable rotary hinge 240 is a crossbeam connector 300 fixed to one side girder 100a and a detachable rotary hinge that is dismantled from the upper surface of the rotary crossbeam 200 to be reused. Rotating crossbeam using a crossbeam connecting device. delete According to claim 1,
The hydraulic jack 420 is accommodated in the hydraulic jack housing 410 which is detachably installed on the other side of the rotary crossbeam 200 so that the hydraulic cylinder 421 extends to and restores the upper surface of the other side girder 100b. Rotating crossbeam using hinge and crossbeam connecting device. According to claim 4,
The first cylinder fixture 430 is
On the upper surface of the other side of the rotary crossbeam 200 at a position spaced apart from the hydraulic jack housing 410, while guiding the movement of the hydraulic cylinder 421 of the hydraulic jack 420, the hydraulic cylinder 421 is A rotating crossbeam using a detachable rotary hinge and a crossbeam connecting device to be bound on the upper surface of the other side of the rotary crossbeam 200. According to claim 5,
The second cylinder fixture 440,
While guiding the movement of the hydraulic cylinder 421 of the hydraulic jack 420 extending from the upper surface of the crossbeam connector 300 of the other girder 100b, the hydraulic cylinder 421 is rotated by the rotary crossbeam 200 using the binding member 434 A rotating crossbeam using a detachable rotary hinge and a crossbeam connecting device that can be bound on the upper surface of the other side of the crossbeam. One side girder 100a having a detachable rotary hinge 240 installed so that one side is pinned to the upper surface of the crossbeam connector 300 fixed to the side and the other side is fastened to the upper surface of the rotary crossbeam 200;
After being set in a folded state integrally on the side of the one side girder (100a), after mounting the one side girder (100a), the rotating crossbeam is connected to the crossbeam connector 300 of the other side girder (100b) by rotation to serve as a crossbeam of the bridge. (200); and
The hydraulic cylinder 421 of the hydraulic jack 420 installed on the other side of the rotary crossbeam 200 is constrained by the second cylinder fixture 440 installed on the crossbeam connector 300 of the other side girder 100b, and the extended hydraulic pressure The cylinder 421 is restored so that the crossbeam connector 300 of the other girder 100b approaches the other side of the rotary crossbeam 200, and the first cylinder fixture 430 fixed to the other side of the rotary crossbeam 200 A girder using a detachable rotary hinge and a rotary crossbeam using a crossbeam connecting device including a crossbeam connecting device 400 that restrains the hydraulic cylinder 421 restored by the. (a) One side is pinned to the upper surface of the crossbeam connector 300 fixed to the side, and the other side includes an L-shaped steel to be fastened and fixed to the upper surface of the rotatable crossbeam 200. A detachable rotary hinge 240 is installed, Mounting one side girder (100a) in a state where the rotary crossbeam 200 is integrally folded on the side surface of the bridge substructure (A);
(b) Rotate the folded rotary crossbeam 200 using the detachable rotary hinge 240 to the crossbeam connector 300 fixed to the side of the other side girder 100b mounted on the bridge lower structure A, but installed close to step; and
(c) One side and the other side of the rotary crossbeam 200 between one side girder (100a) and the other side girder (100b) to both crossbeam connectors 300 of one side girder (100a) and the other side girder (100b) Fastening device 500 Bridge construction method using a rotating crossbeam using a detachable rotary hinge and a crossbeam connecting device including a step of final connection using a. According to claim 8,
One side of the rotary crossbeam 200 in step (b) is rotatably connected to one side girder 100a by the crossbeam connector 300, but the other side of the rotary crossbeam 200 is one side girder 100a until mounting. A bridge construction method using a rotating crossbeam using a detachable rotary hinge and a crossbeam connecting device that is temporarily adhered and fixed by a temporary fixture 250 including a shear connector on the side. According to claim 9,
A plurality of fastening holes (h) are formed in the abdomen 220 of the rotary crossbeam 200 so that the fastening bolts and nuts of the fastening device 500 can be fastened,
A plurality of fastening holes (h) are formed in the cross beam connecting member 330 so that the fastening bolts and nuts of the fastening device 500 can be fastened,
The fastening holes (h) of the rotary crossbeam 200 and the crossbeam connecting member 330 are communicated with the fastening holes (h) of the backing plate 510, and the final Bridge construction method using a rotating crossbeam using a detachable rotary hinge and a crossbeam connecting device for installing a fastening device 500.

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