KR200341114Y1 - A bridge lifting system - Google Patents

Abstract

The present invention relates to a bridge lifting system, and it is difficult to secure the height of the mold and the distance of a bridge like a waterway bridge, and to a means for raising the waterway economically and efficiently even in a work environment in which heavy equipment cannot be brought in. An upper support member is installed in a bridge forming direction on an upper surface of a bridge lower structure, and an end portion of the upper support member protrudes out of the bridge lower structure. A connection member formed on a protruding end lower surface of the upper support member; And a lower support member connected to the connection member and supported across the bridge and provided with a pulling means.

Description

Bridge lifting system {A bridge lifting system}

The present invention relates to a bridge pulling system. More specifically, it is difficult to secure the height of the mold and the distance of the bridge like the waterway bridge, and it can raise the waterway economically and efficiently even in the working environment where it is difficult to bring heavy equipment, and to impact or damage the bridge substructure such as forming a hole in the bridge. The present invention relates to a bridge raising system that can raise a bridge efficiently without incurring a high risk.

The waterway bridge 100 of the bridge is a kind of hydraulic structure in which the waterway 10 is supported by the waterway support 30 on the pier 20 as shown in FIG. 1A. The channel structure of the U-shaped cross-section of the open top of the channel is mainly used, and the pier supports the channel 10, which is a box structure, at a lower portion while having a predetermined interval, and is installed at a predetermined height by ground conditions and the like. The water channel is also made according to the length of the bridge piers also has a predetermined length is connected on the bridge, it is usually manufactured in the field of concrete structures, such as a bridge.

Concrete structures deteriorate over time due to various reasons, and expand and contract according to environmental factors. As the concrete is expanded and contracted, the length of the channel, which is the concrete structure, increases and decreases, so that the length of the channel changes.

The cumulative action of the channel length mainly results in the malfunction of the channel support. Therefore, the repair and reinforcement of the waterway bridge raises the channel by the waterway work, and the necessary work, namely, the replacement of the channel support and various defects. After finishing work such as reinforcing bars and piers and securing new joint gaps, the work of lowering the raised channel was required.

In other words, it was found that the problem of various defects in aqueduct bridges must be premised on the process of healing specific defects and reducing the channel again.

In particular, unlike a general bridge, a canal bridge has a clamping height (H), which means the height between a channel and an upper surface of a pier, and a distance from a channel support to an upper end of a pier, as shown in FIG. (L) was too narrow to limit the work to directly raise the waterway on the pier, and when the total height of the waterway is very low, there was a problem that it is very difficult to secure a working space for the waterway.

In addition, when the bearing capacity of the ground where the aqueduct bridge is located is insufficient, when installing a separate temporary vent or abstract stand (support structure, 200), as shown in Figure 1c, using the support bar 210 to support the abstract bar, the ground of the base Due to settlement, it is difficult to secure the safety of the entire abstraction bar. Therefore, an impression method was used to excavate the ground to the foundation of the bridge and to support the lower part of the abstraction bar. However, this method has problems in efficiency and constructability, such as complicated construction and civil complaints.

In the case of a method of installing the hydraulic jack after installing the bracket 300 on the piers 20 (Patent No. 21486), as shown in FIG. 1D, in the case of a general bridge, it is easy to secure the edge distance L1 and the height H1. Although there is no big problem in its use, in case of a waterway bridge, as shown in Fig. 1e, the height of the mold H2 is very small, and it is difficult to secure the podium distance L2, so that the bridge can be raised without installing a separate abstract platform on the waterway bridge piers. It is pointed out that although there is an advantage, it is not an effective means for the actual impression.

An object of the present invention is to provide a bridge raising means that can easily raise the bridge even when the height of the mold and the distance is short.

Another object of the present invention is to provide a bridge raising means which can raise a bridge without having to install a structure such as an additional abstract belt or a temporary vent.

Still another object of the present invention is to provide a bridge raising means which can be easily installed without additional piercing and work, such as holes for anchor bolts, in a bridge substructure such as a bridge.

Figure 1a shows a conventional aqueduct bridge,

Figure 1b shows the height of the mold (H) and the end distance (L) in the conventional waterway bridge,

Figure 1c shows a case of raising the waterway by installing a conventional support and abstract stand,

1d illustrates a method of raising a bridge using a bracket installed in a conventional pier,

Figure 1e shows the characteristics of the aqueduct bridge that can not use the bracket of Figure 1d for comparison with Figure 1d,

Figures 2a, 2b and 2c is a plan view, a front view and a side view showing the case where the bridge elevation system of the present invention is installed in the piers of the waterway bridge,

Figures 3a and 3b is a front view and a side view showing the waterway pulled up using the bridge raising system of the present invention,

Figure 4 shows a bridge lifting system without a connecting member of the present invention.

<Description of Major Reference Signs>

400: bridge lower structure 500: upper support member

600: connecting member 700: lower support member 800: lifting means

In order to achieve the above technical problem, an end portion of each upper support member is inserted into the lower space by inserting the upper support member into the mold space in the direction in which the bridge is formed so as to be directly in contact with the upper surface of the pier without a separate fixing means. Protrudes the finishing surface of the piers, and the connecting member is formed at the end so that the lower support member can be supported below the predetermined height from the upper support member, the lower support to the upper support member and the pier side to the connecting member In the state in which the member is formed, the pulling means is installed on the upper surface of the lower support member, characterized in that the upper portion of the pulling means to push up the lower bridge.

Hereinafter, the best embodiments of the present invention will be described in detail with reference to FIGS. 2 to 4 so that those skilled in the art can easily carry out the present invention. Explain based on.

Bridge lifting system of the present invention, in the bridge lifting construction, the upper support member 500 is installed in the bridge forming direction on the upper surface of the bridge lower structure is installed so that the end protrudes out of the bridge lower structure; A connection member 600 formed on a lower surface of the protruding end of the upper support member; And a lower support member 700 connected to and supported by the connection member and formed across the bridge, and having a pulling means 800 installed therein, wherein the connection member 600 can be omitted. Is directly connected to the upper support member.

In particular, the present invention provides a lower bridge structure 400, that is, a part connected to the waterway bridge while the waterway bridge is connected, that is, the height of the die and the distance as in the case of raising the waterway to replace or repair the waterway support installed on the upper surface of the bridge. Can be effectively used in narrow cases.

Figures 2a, 2b and 2c is a plan view, front view and side view showing a state in which the upper support member 500, the lower support member 700 and the connecting member 600 is installed in the waterway bridge constituting the system of the present invention It is shown.

The upper support member 500 is pier across the pier transversely in the direction of forming the waterway (hereinafter referred to as "horizontal direction") without a separate fixing means in the clamping space (space between the waterway bottom and the pier upper surface). While directly contacting the upper surface, the end portion is installed so as to project the pier finishing surface with a predetermined length.

At this time, the upper support member 500 may use the commonly used I-shaped steel, H-shaped steel, etc. If the mold height is very small, the minimum supporting height and the width can be manufactured while the width of the required supporting rigidity It can be easily secured and has the advantage of relatively simple processing can be mainly used in the present invention, but is not necessarily limited thereto.

Figure 2 shows a case where two are installed in the cavity space, but more than one can be installed according to the area of the upper surface of the piers, in the present design, the upper support member on the upper piers by the contact area of the upper support member Because it is supported while contacting, the upper support member can be easily installed in the mold space without any work on the upper part of the pier, such as forming a separate anchor hole in the pier to fix the upper support member to the upper surface of the pier. There is this.

In the case of installing two upper support members as shown in FIG. 2 on the piers, they may be installed at predetermined intervals, and the intermediate portions are installed so as to rest on the bridge lower structure 400, and when the lower support members are installed, It is preferable to determine the position of the upper surface of the pier so as to secure the, it is shown in Figure 2 the case is installed inside the water support but may be installed outside the water support.

The upper support member is distinguished from the lower support member 700 and the connection member 600 which will be described later to be installed independently, there is an advantage that the installation cost can be reduced by using the easy-to-purchase shaped steel.

At this time, each of the protruding end lower surface of the upper support member may be provided with a connecting member 600, the lifting means such as a hydraulic jack of the capacity to raise the channel in the upper support member, if the height of the mold, such as a narrow bridge bridge It is difficult to secure space for installing the 800. Thus, by installing the connecting member as shown in Figures 2b and 2c it is possible to secure a space in which the lifting means can be installed on the lower support member.

The connecting member 600 is cut by I-shaped steel, H-shaped steel and the like in the longitudinal direction, such as the upper support member, to be fixed to the lower surface of the protruding upper support member using anchor bolts, etc., if necessary, assembled And to facilitate disassembly.

When the height of the connection member 600 is manufactured to the shortest height for installing the pulling means, it is possible to reduce the installation and manufacturing cost.

The lower support member 700 is connected to the lower surface of the connection member so as to be parallel to both sides of the pier using anchor bolts, etc., the upper support of the lower support member as shown in Figures 2b and 2c The pulling means is installed on the upper surface. The pulling means 800 may use a hydraulic jack having a capacity to raise the water channel, and it is preferable to reasonably consider the operation timing and the capacity of each pulling means in order to prevent a safety accident caused by a phenomenon such as when the water channel is raised. . The lower support member 700 may also use I-shaped steel, H-shaped steel, and the like.

As a result, when the pulling means 800 installed on the lower supporting member 700 operates upward while contacting the water channel, the reaction force generated in the pulling means is supported by the lower supporting member, and the lower supporting member is connected to the connecting member 600 and the upper portion. It is constrained and supported by the support member 500, so there is no need to install an additional abstract band or temporary vent, and even if the height of the mold is small, it is possible to raise the channel and protrude the upper support member even if the pore distance cannot be secured sufficiently. The lower support member connected to the 500 has the advantage of easy installation and operation of the pulling means for waterway impression.

The connection position of the lower support member and the connecting member may be provided with a spacer on the contact surface if necessary so that the lower support member can be horizontal when installed.

3A and 3B are front and side views of a state in which a water channel is lifted by an operation of the pulling means installed in the lower support member, and when the water channel is raised, a water channel replacement necessary for repair, reinforcement work, etc. is required.

The upper support member, the connecting member and the lower support member may be generally carried out separately in the field to be assembled and installed directly in the field, but the lower support member and the connecting member are manufactured integrally and the lower portion formed integrally after the installation of the upper support member. Support member may be installed on the upper support member is installed, the connecting member and the upper support member is manufactured and installed integrally, and only the lower support member may be connected to the connecting member formed on the upper support member.

Furthermore, as shown in FIG. 4, only the upper support member 500 and the lower support member 700 may be installed without a separate connection member to configure the bridge lift system of the present invention.

That is, if the support can be raised by installing the pulling means on the lower support member by being supported by the upper support member, the channel can be raised using only the upper support member and the lower support member without a connecting member.

Bridge lifting method using the bridge lifting system of the present invention is installed in the forming space formed between the bridge bridge and the bridge upper structure in the bridge forming direction and the upper support member 500 is installed so that the end protrudes out of the bridge; The connecting member 600 is installed on the protruding end lower surface of the upper supporting member, and is connected to the connecting member to be supported and formed across the bridge, and the lower supporting member 700 is provided with the pulling means. The bridge is lifted by the operation of the lifting means supported by the lower support member.

When the upper support steel is used for the I-shaped steel, etc., the self-weight can be large, so that the safety is installed by using a lifting device such as a crane, and installed so that the end protrudes in the transverse direction of the piers.

When the upper supporting steel is installed, the connecting member is connected by using an anchor bolt or the like, and the cutting member can be used to cut the I-shaped steel and the H-shaped steel having a predetermined height, and the lower supporting member which is the I-shaped steel and the H-shaped steel below the connecting member. Can also be connected using an anchor bolt or the like. Furthermore, as shown in FIG. 4, the lower support member may be directly connected to the upper support member without using the connection member.

As long as the pulling means for raising the channel can be supported without excessive deformation and damage, it is possible to use a member of material other than the section steel, and in case of using a member made of the upper or lower supporting member and the connecting member integrally, There is an advantage that the installation member can be omitted.

Once the lower support member is installed, when the pulling means is operated to raise the channel while the predetermined lifting means is supported and operated on the upper surface of the lower support member, the water channel is pulled upward, and necessary repair work is required. And so on.

After the necessary repairs are completed, the hydraulic jack, which is the lifting means, is lowered to allow the raised waterway to be supported by the water support.

The bridge raising system of the present invention can easily raise the waterway even in the case of heavy equipment inaccessible and civil complaints, especially in the waterway bridge. It is possible.

This can be used for repair, reinforcement and construction of bridges including waterway bridges.

Claims (9)

In the bridge raising construction, An upper support member installed on the upper surface of the bridge lower structure in a bridge forming direction so that an end portion protrudes from the bridge lower structure; A connection member formed on a protruding end lower surface of the upper support member; And A lower support member connected to the connection member to be supported and formed across the bridge and provided with a pulling means; Bridge raising system comprising a. In the bridge raising construction, An upper support member installed on an upper surface of the bridge lower structure in a bridge forming direction so that an end portion protrudes from the bridge lower structure; And A lower support member connected to the upper support member to be supported and formed across the bridge and provided with pulling means; Bridge raising system comprising a. The bridge pulling system according to claim 1, wherein the connection member formed between the upper and lower support members is integrally manufactured with each of the support members, or is assembled and installed in the field in a separately manufactured state. The bridge pulling system according to claim 1, wherein the connecting member uses a cut type I or H-shaped steel in the longitudinal direction. The bridge pulling system according to claim 1, wherein the height of the connection member installed on the lower end surface of each end of the upper support member is formed at the shortest height to which the pulling means can be installed. According to claim 1 or claim 2, wherein the upper support member is installed on the upper surface of the bridge lower structure using at least two or more I- or H-type steel, and formed in the shortest height that can be inserted into the mold space of the bridge Bridge raising system, characterized in that. According to claim 1 or 2, wherein the lower support member is installed using an I-type or H-shaped steel, each of which is provided at least on each side of at least the bridge lower structure, the horizontal support by the upper support member or connecting member Bridge holding system, characterized in that supported by the upper support member or connecting member during the operation of the lifting means. The bridge pulling system according to claim 1 or 2, wherein the pulling means is a hydraulic jack installed on at least one lower supporting member. 3. The bridge pulling system according to claim 1 or 2, wherein the bridge undercarriage is a bridge of a waterway bridge having a small pore distance and a high height.