KR102194606B1 - Anchorless Assembly Bracket System for Bridge Maintenance and Inspection - Google Patents

Abstract

The present invention relates to a prefabricated anchorless bracket system for maintaining and inspecting a bridge and, more specifically, to a prefabricated anchorless bracket system for maintaining and inspecting a bridge, which fixes a load applied through the center of rotation of a hinge groove of a support member, through a tension member by converting a direction through rotation of a bracket, thereby being installed on a bridge lower member without using an anchor.

Description

Anchorless Assembly Bracket System for Bridge Maintenance and Inspection

The present invention relates to a non-anchor assembly type bracket system for bridge maintenance and inspection, and more particularly, a load applied through the rotation center of the hinge groove of the support member is changed through the rotation of the bracket to change the direction through the tension member. It relates to an anchorless prefabricated bracket system for bridge maintenance and inspection that can be installed without using an anchor on the lower part of the bridge by fixing it.

Bridge structures to which support devices are applied are generally divided into upper structures and lower structures. At this time, the upper structure is classified in various ways according to its type and material, but in general, the mold and the bottom plate integrated at the top of the mold are collectively referred to as the upper structure, a support device that supports the upper structure, and a reinforced concrete substructure at the bottom of the support device. It is divided into Bridge structures that are naturally or artificially deteriorated or damaged should be completely or partially rebuilt or repaired/reinforced so that their original functions can be achieved. However, in order to rebuild the bridge, a lot of social cost and time are consumed, so various repair/reinforcement methods have been recently developed and applied.

In particular, in the method of repairing/reinforcing bridge support devices and concrete substructures, various methods of supporting or raising and replacing the superstructure by installing a hydraulic jack, or repairing the section are applied in various ways. However, as the specifications related to the specifications of the bridge structure have changed a lot, the installation space for the hydraulic jack is not secured in the old bridge structure that needs repair/reinforcement. As shown in Fig. 1, a steel bracket is installed on the side of the structure with a chemical anchor or a concrete bracket is installed. A method of securing a space for installation of a hydraulic jack is generally applied.

The chemical anchoring method fixes anchors and brackets by drilling into bridge structures such as aging coping, so the working conditions are poor and the improved safety factor is applied to prevent a large load on the brackets. A contradiction arises in the installation. In particular, in the case of steel brackets, the risk is higher because the chemical anchors receive the full support of the superstructure concentrated on the brackets, or the bending and welding parts of the brackets in contact with the aged concrete are often subject to concentration.

In particular, such a bracket is difficult to exert support when the concrete is deteriorated, damage to the concrete is inevitable, the construction cost and construction period increase, and the problem that may be limited depending on the reinforcement condition of aging concrete or rebar have.

Accordingly, technology for installing a bracket without using an anchor has been developed. Patent Literature 1 and Patent Literature 2 disclose steel brackets in the form of interconnecting the top of the structure developed by supplementing these points, which are shown in Figs. 2 (a) and (b), respectively. However, although this technology aims for an anchorless bracket, the physical behavior is not clear or the anchor is only minimized, showing limitations. In particular, when the bracket in the form of a cross section as shown in FIG. 2 is in close contact with a bridge lower member such as a pier, a problem in which fracture is likely to occur at the junction due to stress concentration also occurs.

KR 10-1245594 B1 KR 10-1523758 B1

In the present invention, the load applied through the rotation center of the hinge groove of the supporting member is changed through the rotation of the bracket and fixed through the tension member, so that the bridge maintenance and inspection that can be installed without using an anchor on the bridge lower member Its purpose is to provide an anchorless assembly bracket system for

In order to solve the above problems, the present invention is a non-anchor assembly type bracket system, comprising: a horizontal support on which a hydraulic jack can be installed; A plurality of bracket bodies which may be disposed on both sides of the bridge lower member and fix the horizontal support member; And a bracket connection tension member that connects and couples a plurality of the bracket bodies that may be disposed on both sides of the bridge lower member. Including, the bracket body, a horizontal bracket member that can be disposed on the upper side of the bridge lower member; And a support member disposed between the horizontal bracket member and the upper surface of the bridge lower member to enable the bracket body to rotate with respect to the bridge lower member around a preset rotation center. Including, the support member has a concave arc-shaped hinge groove is formed, the horizontal bracket member has a protruding arc-shaped hinge protrusion corresponding to the hinge groove is formed, the hinge groove and the hinge protrusion It provides an anchorless prefabricated bracket system that can be arranged to engage with each other.

In the present invention, the bracket body, a vertical bracket member disposed on the side of the bridge lower member and coupled to one end of the horizontal bracket member; And a horizontal support recombination member that is coupled to the vertical bracket member to fix the horizontal support member. It further comprises, by rotating the hinge projection on the hinge groove, the horizontal bracket member, the vertical bracket member and the horizontal support recombination member may be rotatable with respect to the bridge lower member.

In the present invention, the anchorless assembly type bracket system may be disposed in a space between the bracket body and the bridge lower member, and an elastic member supporting a portion of a lower surface of the horizontal bracket member; Further comprising, the elastic member may perform a function of buffering the rotational movement of the bracket body.

In the present invention, the bracket body may include a vertical coupling tension member for coupling the horizontal bracket member and the vertical bracket member by penetrating the vertical bracket member in a vertical direction; And an oblique coupling tension member coupling the horizontal bracket member and the horizontal support recombination member. It may further include.

In the present invention, the horizontal support recombination member, the upper horizontal support recombination member extending in a direction perpendicular to the side of the bridge lower member, one end side is respectively coupled to the vertical bracket member; And a lower horizontal support recombination member. Including, the upper horizontal support recombination member and the lower horizontal support recombination member may be arranged vertically spaced apart according to the height of the horizontal support.

In the present invention, the horizontal support recombination member includes: a horizontal support recombination tension member which is coupled through each of the upper horizontal support recombination member and the other end of the lower horizontal support recombination member; It may further include.

In order to solve the above problems, the present invention provides a method of constructing an anchorless assembly type bracket system, comprising: installing a support member, a horizontal bracket member, and a bracket connection tension member on an upper surface of a bridge lower member; Coupling and installing a vertical bracket member and a horizontal support recombination member to the horizontal bracket member; And coupling and installing a horizontal support member to the horizontal support recombination member. Including, the anchorless assembly type bracket system, a horizontal support to which a hydraulic jack can be installed; A plurality of bracket bodies which may be disposed on both sides of the bridge lower member, and fix the horizontal support member to the bridge lower member; And a bracket connection tension member that connects and couples a plurality of the bracket bodies that may be disposed on both sides of the bridge lower member. Including, the bracket body, a horizontal bracket member that can be disposed on the upper side of the bridge lower member; A vertical bracket member disposed on a side surface of the bridge lower member and coupled to one end of the horizontal bracket member; A horizontal support recombination member that is coupled to the vertical bracket member to fix the horizontal support member; And a support member disposed between the horizontal bracket member and the upper surface of the bridge lower member to allow the bracket body to rotate with respect to the bridge lower member around a preset rotation center. Including, the support member has a concave arc-shaped hinge groove is formed, the horizontal bracket member has a protruding arc-shaped hinge protrusion corresponding to the hinge groove is formed, the hinge groove and the hinge protrusion It provides a method of construction of an anchorless prefabricated bracket system that can be arranged to engage with each other.

According to an embodiment of the present invention, by installing the bracket in a mounting manner, it is possible to exhibit an effect of preventing damage to the existing concrete bridge lower member.

According to an embodiment of the present invention, it is possible to exert an effect that can be checked by jacking the upper bridge member without damage to the coping of the lower bridge.

According to an embodiment of the present invention, the vertical load is converted into a horizontal load through rotation through the support member, thereby improving structural stability.

According to an embodiment of the present invention, each member of the bracket system is assembled in a prefabricated manner, so that an effect of easy assembly may be exhibited.

According to an embodiment of the present invention, the length of the horizontal support member is easily adjusted by fixing the horizontal support member in a manner of fastening the coupling tension member after coupling between the two horizontal support recombination members, and the length of the bracket connection tension member is easily adjusted. Thus, it is possible to exhibit the effect of easy response to the width of the bridge lower member and the width of the girder.

1 is a view showing a technique of installing a bracket on a pier using a conventional anchor.
2 is a view showing a bracket through a conventional top connection.
3 is a view schematically showing the state of the anchorless assembly type bracket system according to an embodiment of the present invention.
4 is a view schematically showing a view of a pier in which an anchorless assembly type bracket system is installed according to an embodiment of the present invention.
5 is a view schematically showing a view of a pier in which an anchorless assembly type bracket system is installed according to an embodiment of the present invention.
6 is a view schematically showing a state in which the anchorless assembly type bracket system according to an embodiment of the present invention is in contact with a bridge lower member.
7 is a view schematically showing the configuration of a tension member according to the load flow of the anchorless assembly type bracket system according to an embodiment of the present invention.
8 is a view schematically showing an installation state of the anchorless assembly type bracket system according to an embodiment of the present invention.
9 is a diagram schematically showing detailed steps of a method of constructing an anchorless prefabricated bracket system according to an embodiment of the present invention.

In the following, various embodiments and/or aspects are now disclosed with reference to the drawings. In the following description, for purposes of explanation, a number of specific details are disclosed to aid in an overall understanding of one or more aspects. However, it will also be appreciated by those of ordinary skill in the art that this aspect(s) may be practiced without these specific details. The following description and the annexed drawings set forth in detail certain illustrative aspects of one or more aspects. However, these aspects are exemplary and some of the various methods in the principles of the various aspects may be used, and the descriptions described are intended to include all such aspects and their equivalents.

As used herein, “an embodiment,” “example,” “aspect,” “example,” and the like may not be construed as having any aspect or design described as being better or advantageous than other aspects or designs. .

In addition, the term “or” is intended to mean an inclusive “or” rather than an exclusive “or”. That is, unless specified otherwise or is not clear from the context, "X employs A or B" is intended to mean one of the natural inclusive substitutions. That is, X uses A; X uses B; Or, when X uses both A and B, “X uses A or B” can be applied to either of these cases. In addition, the term "and/or" as used herein should be understood to refer to and include all possible combinations of one or more of the listed related items.

In addition, the terms "comprising" and/or "comprising" mean that the corresponding feature and/or element is present, but excludes the presence or addition of one or more other features, elements, and/or groups thereof. It should be understood as not.

In addition, terms including ordinal numbers such as first and second may be used to describe various elements, but the elements are not limited by the terms. These terms are used only for the purpose of distinguishing one component from another component. For example, without departing from the scope of the present invention, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element. The term and/or includes a combination of a plurality of related listed items or any of a plurality of related listed items.

In addition, in the embodiments of the present invention, unless otherwise defined, all terms used herein including technical or scientific terms are commonly understood by those of ordinary skill in the art to which the present invention belongs. It has the same meaning as. Terms as defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless explicitly defined in the embodiments of the present invention, an ideal or excessively formal meaning Is not interpreted as.

3 is a view schematically showing the state of the anchorless assembly type bracket system according to an embodiment of the present invention.

Anchorless assembly bracket system 1000 according to an embodiment of the present invention serves to install a hydraulic jack 70 on the bridge lower member 50 to raise or support the bridge upper structure as shown in FIG. Perform. As shown in FIG. 3, the hydraulic jack 70 can adjust the height installed in the anchorless assembly type bracket system through the height adjustment member 80.

Referring to FIG. 3, an anchorless assembly type bracket system 1000 according to an embodiment of the present invention includes a horizontal support member 300 on which a hydraulic jack 70 may be installed; A plurality of bracket bodies 100 that may be disposed on both sides of the bridge lower member 50, and fix the horizontal support member 300 to the bridge lower member 50; And a bracket connection tension member 400 for connecting and coupling a plurality of bracket bodies 100 that may be disposed on both sides of the bridge lower member 50 to each other. It may include.

As shown in Figure 3, in an embodiment of the present invention, a pair of bracket bodies 100 are disposed on both sides of the bridge lower member 50, and a pair of bracket bodies 100 are disposed on both sides. Is coupled by the bracket connection tension member 400, and the horizontal support member 300 is coupled to the bracket body 100 so that the hydraulic jack 70 is fixed to the bridge lower member 50.

In an embodiment of the present invention, the bracket body 100 includes a horizontal bracket member 110 that may be disposed on the upper side of the bridge lower member 50; A vertical bracket member 120 disposed on the side of the bridge lower member 50 and coupled to one end of the horizontal bracket member 110; A horizontal support recombination member 130 that is coupled to the vertical bracket member 120 to fix the horizontal support member 300; And it is disposed between the horizontal bracket member 110 and the upper surface of the bridge lower member 50 so that the bracket body 100 can be rotated with respect to the bridge lower member 50 around a preset center of rotation. A supporting member 200 to be; It may include.

In an embodiment of the present invention, the bracket body 100 is capable of rotational movement by the configuration of the support member 200, so that the vertical load applied to the hydraulic jack 70 is transmitted through the horizontal support member 300. It is transmitted to the bracket body 100 and is converted into a horizontal load of the bracket connection tension member 400 by rotation of the bracket body 100, thereby forming a stable structure.

Meanwhile, in an embodiment of the present invention, the anchorless assembly type bracket system 1000 may be disposed in a space between the bracket body 100 and the bridge lower member 50, and the lower surface of the horizontal bracket member 110 An elastic member 500 installed on and supporting a part of the vertical bracket member 120; It may further include. The elastic member 500 may function to buffer the rotational movement of the bracket body 100.

4 and 5 are diagrams schematically showing a view of a pier in which an anchorless assembly type bracket system is installed according to an embodiment of the present invention.

Figure 4 (a) is a side view of the pier in which the anchorless assembly bracket system 1000 is installed according to an embodiment of the present invention, Figure 4 (b) is a front view, Figure 4 (c) is a plan view, 5 is a perspective view as viewed from the lower side.

Referring to FIGS. 4 and 5, it can be seen that the non-anchor assembly bracket system 1000 is installed on a bridge pier, which is the bridge lower member 50. Five girders are arranged at the top of the pier, and each girder is supported by two bridge supports.

In such a bridge, the anchorless assembly type bracket system 1000 is installed in the vicinity of each bridge support, and the girder 70 is controlled by a hydraulic jack 70 disposed in the anchorless assembly type bracket system 1000. You can raise it.

6 is a view schematically showing a state in which the anchorless assembly type bracket system according to an embodiment of the present invention is in contact with a bridge lower member.

6(a) shows a state in which the bracket body 100 is installed on the bridge substructure 50, and FIG. 6(b) is a horizontal bracket member 110 of the bracket body 100 The part is enlarged and shown.

Referring to FIG. 6 in more detail, in an embodiment of the present invention, the support member 200 has a concave arc-shaped hinge groove 210, and the horizontal bracket member 110 is the hinge groove ( The hinge protrusion 115 in the shape of a protruding arc corresponding to 210) may be formed. In this case, the hinge groove 210 and the hinge protrusion 115 may be arranged to engage with each other. By the combination of the hinge groove 210 and the hinge protrusion 115 in the form of an arc, the horizontal bracket member 110 can be rotated with respect to the support member 200 with the center point of the arc as an axis. The bracket body 100 can be rotated.

Meanwhile, the horizontal bracket member 110 and the vertical bracket member 120 may be spaced apart from each other by a predetermined distance with respect to the upper surface and the side surface of the bridge substructure 50. At this time, an elastic member 500 may be disposed in a space between the bracket body 100 and the bridge lower member 50, and a portion of the lower surface of the horizontal bracket member 110 and the vertical bracket member 120 A part of the side surface of the elastic member 500 may support a function of buffering the rotational movement of the bracket body 100. That is, in an embodiment of the present invention, by rotating the hinge protrusion 115 on the hinge groove 210, the horizontal bracket member 110, the vertical bracket member 120, and the horizontal support recombination member 130 It is possible to rotate with respect to the bridge lower member 50.

Such an elastic member is formed of an elastic material capable of compression deformation such as a rubber plate, and the bracket body 100 is formed of an elastic material such as a rubber plate, etc., so that the bracket body 100 is formed by compressive deformation of the elastic member. Rotating behavior is possible.

In this way, the bracket body 100 is not in close contact with the bridge substructure 50 and is spaced apart by an elastic member 500 so that the bracket body 100 can rotate, and accordingly, the hydraulic jack 70 ) Can be converted to horizontal load through rotation. That is, as shown in (a) of Figure 6, the vertical load applied through the hydraulic jack 70 is converted to a counterclockwise torque centered on the rotation axis formed by the hinge protrusion 115 and the hinge groove 210 It is converted into a horizontal tension force through the bracket connection tension member 400.

On the other hand, since the support member 200 may have a high load concentrated through the hinge protrusion 115, the lower surface of the support member 200 is anti-slip treatment, so that the support member 200 is separated from the seat. Can be prevented.

On the other hand, in an embodiment of the present invention, the horizontal support recombination member 130 extends in a direction perpendicular to the side of the bridge lower member 50, and one end side is coupled to the vertical bracket member 120, respectively. Upper horizontal support recombination member (130b); And a lower horizontal support recombination member 130a. It may include. In this case, the upper horizontal support recombination member 130b and the lower horizontal support recombination member 130a may be disposed to be vertically spaced apart according to the height of the horizontal support member 300.

In such an embodiment, the horizontal support member 300 is inserted between the upper horizontal support recombination member 130b and the lower horizontal support recombination member 130a to be coupled as shown in FIG. 6A. I can. To this end, the horizontal support recombination member 130 may include a horizontal support recombination tension member 150 which is coupled through each of the other ends of the upper horizontal support recombination member 130b and the lower horizontal support recombination member 130a; It may further include. That is, the horizontal support member 300 is disposed between the upper horizontal support recombination member 130b and the lower horizontal support recombination member 130a, and the horizontal support recombination tension member 150 recombines the upper horizontal support recombination member The horizontal support member 300 is fixed by vertically coupling the member 130b and the lower horizontal support recombination member 130a.

Meanwhile, in an embodiment of the present invention, the vertical bracket member 120 and the horizontal support recombination member 130 may be integrally formed. In the same form as in the embodiment shown in FIG. 6, the vertical bracket member 120 and the horizontal support recombination member 130 may be formed of an H-beam type steel, respectively, and may be welded and fixed.

In addition, the bracket body 100 further includes a coupling reinforcing member 170 such as a rib, as shown in FIG. 6, and coupling the vertical bracket member 120 and the horizontal support recombination member 130 Can strengthen.

7 is a view schematically showing the configuration of a tension member according to the load flow of the anchorless assembly type bracket system according to an embodiment of the present invention.

The bracket body 100 includes a vertical coupling tension member 140 that penetrates the vertical bracket member 120 in a vertical direction and couples the horizontal bracket member 110 and the vertical bracket member 120; And an oblique coupling tension member 160 for coupling the horizontal bracket member 120 and the horizontal support recombination member 130. It may further include. The vertical coupling tension member 140 and the oblique coupling tension member 160 combine the horizontal bracket member 110, the vertical bracket member 120 and the horizontal support recombination member 130, as well as the hydraulic jack. Efficiently distributes the load according to the flow of the load transmitted to the horizontal support member 130, the horizontal support recombination member 130, the vertical bracket member 120, and the horizontal bracket member 110 through 70 By doing so, it is possible to exert an effect of improving structural stability.

In more detail, the load applied through the hydraulic jack 70 and the horizontal support member 130 is transmitted to the lower horizontal support recombination member 130a, and the load applied to the lower horizontal support recombination member 130a is Distributed to the vertical bracket member 120 and the horizontal support recombination tension member 150. The load distributed to the horizontal support recombination tension member 150 is transferred to the upper horizontal support recombination member 130b, and the load transferred to the upper horizontal support recombination member 130b is the inclined connection tension member 160 and Distributed to the vertical bracket member 120. The load distributed by the oblique coupling tension member 160 is transmitted to the horizontal bracket member 110.

On the other hand, the load transferred to the vertical bracket member 120 through the lower horizontal support recombination member 130a and the upper horizontal support recombination member 130b is transferred to the vertical coupling tension member 140, and the vertical coupling tension The load transmitted to the member 140 is transmitted to the horizontal bracket member 110. In this way, the load transmitted to the horizontal bracket member 110 is transmitted to the bridge lower member 50 through the support member 200, or the bracket body located on the opposite side through the bracket connection tension member 400 ( 100).

In this way, the load is transmitted through tension members such as the horizontal support recombination tension member 150, the oblique connection tension member 160, and the vertical connection tension member 140 in the process of transferring the load, thereby increasing the resistance against the load. At the same time, the cost can be reduced by reducing the number of members, and the effect of easy construction can be achieved.

8 is a view schematically showing an installation state of the anchorless assembly type bracket system according to an embodiment of the present invention.

As shown in FIG. 8, when installing the anchorless assembly type bracket system 1000 according to an embodiment of the present invention, the anchorless assembly type bracket system 1000 is composed of a small number of members, thereby securing a work space. Therefore, it is possible to not only install the anchorless assembly type bracket system 1000 easily, but also secure a space in the management work after raising the upper structure of the bridge through the anchorless assembly type bracket system 1000.

9 is a diagram schematically showing detailed steps of a method of constructing an anchorless prefabricated bracket system according to an embodiment of the present invention.

Referring to FIG. 9, the method of constructing the anchorless prefabricated bracket system 1000 according to an embodiment of the present invention may be performed through the following steps.

The construction method of the anchorless assembly type bracket system 1000 according to an embodiment of the present invention includes a support member 200, a horizontal bracket member 110 and a bracket connection tension member 400 on the upper surface of the bridge lower member 50. Installing (S100); Installing a vertical bracket member 120 and a horizontal support recombination member 130 to the horizontal bracket member 110 (S200); And installing a horizontal support member 300 coupled to the horizontal support recombination member 130 (S300). It may include.

At this time, the step (S300) of coupling and installing the horizontal support member 300 to the horizontal support recombination member 130 in an embodiment of the present invention includes a horizontal support member 300 to the horizontal support recombination member 130 Placing (S310); And fastening the horizontal support recombination tension member 150 to the horizontal support recombination member 130 (S320). It may include.

Figure 9 (a) shows the state of the step (S100) of installing the supporting member 200, the horizontal bracket member 110 and the bracket connection tension member 400 on the upper surface of the bridge lower member 50. . Although not shown in FIG. 9, since the space between the bridge lower member 50 on which the anchorless prefabricated bracket system 1000 is constructed and the upper bridge structure such as the girder according to an embodiment of the present invention is not very wide, a large integrated type Bracket is not easy to install. Accordingly, in the present invention, the support member 200, the horizontal bracket member 110, and the bracket connection tension member 400 are preferentially installed as shown in FIG. 9A. As such, by preferentially installing a member that is not large in size and not particularly high in height, it is possible to easily install the anchorless assembly type bracket system 1000 on the upper surface of the bridge lower member 50.

In an embodiment of the present invention, as shown in Fig. 9 (a), the step S100 includes a support member 200, a horizontal bracket member 110, and a bracket connection tension member on the upper surface of the bridge lower member 50 ( 400) and the elastic member 500 may be installed.

FIG. 9B shows a step (S200) of coupling and installing the vertical bracket member 120 and the horizontal support recombination member 130 to the horizontal bracket member 110. In an embodiment of the present invention, the horizontal bracket member 110 is preferentially installed as shown in FIGS. 9(a) and 9(b), and then vertically to the horizontal bracket member 110. By combining the bracket member 120 and the horizontal support recombination member 130, the bracket body 100 can be easily installed on the bridge lower member 50. Preferably, a vertical coupling tension member 140 may be coupled to the horizontal bracket member 110 and the vertical bracket member 120, and the horizontal bracket member 110 and the horizontal support recombination member 130 are inclined. The coupling tension member 160 may be coupled.

In (c) of FIG. 9, a step (S310) of disposing the horizontal support member 300 on the horizontal support recombination member 130 is shown. In an embodiment of the present invention, the horizontal support recombination member 130 may include an upper horizontal support recombination member 130b and a lower horizontal support recombination member 130a, and the horizontal support 300 may include the upper horizontal support recombination member 130b. It may be fixed by being inserted and disposed between the support recombination member 130b and the lower horizontal support recombination member 130a.

In (d) of FIG. 9, a step (S320) of fastening the horizontal support recombination tension member 150 to the horizontal support recombination member 130 is shown. After placing the horizontal support member 300 between the upper horizontal support recombination member 130b and the lower horizontal support recombination member 130a as shown in (c) of FIG. 9, the horizontal support recombination tension The horizontal support member 300 may be fixedly coupled by fastening the member 150 to the upper horizontal support recombination member 130b and the lower horizontal support recombination member 130a. Thereafter, a height adjustment member 80 and a hydraulic jack 70 may be installed on the horizontal support member 300.

According to an embodiment of the present invention, by installing the bracket in a mounting manner, it is possible to exhibit an effect of preventing damage to the existing concrete bridge lower member.

According to an embodiment of the present invention, it is possible to exert an effect that can be checked by jacking the upper bridge member without damage to the coping of the lower bridge.

According to an embodiment of the present invention, the vertical load is converted into a horizontal load through rotation through the support member, thereby improving structural stability.

According to an embodiment of the present invention, each member of the bracket system is assembled in a prefabricated manner, so that an effect of easy assembly may be exhibited.

According to an embodiment of the present invention, the length of the horizontal support member is easily adjusted by fixing the horizontal support member in a manner of fastening the coupling tension member after coupling between the two horizontal support recombination members, and the length of the bracket connection tension member is easily adjusted. Thus, it is possible to exhibit the effect of easy response to the width of the bridge lower member and the width of the girder.

As described above, although the embodiments have been described by the limited embodiments and drawings, various modifications and variations are possible from the above description by those of ordinary skill in the art. For example, the described techniques are performed in a different order from the described method, and/or components such as a system, structure, device, circuit, etc. described are combined or combined in a form different from the described method, or other components Alternatively, even if substituted or substituted by an equivalent, an appropriate result can be achieved. Therefore, other implementations, other embodiments, and claims and equivalents fall within the scope of the claims to be described later.

1000: anchorless assembly bracket system
50: bridge lower member 60: bridge support
70: hydraulic jack 80: height adjustment member
100: bracket body
110: horizontal bracket member 115: hinge protrusion
120: vertical bracket member
130: horizontal support recombination member 130a: upper horizontal support recombination member
130b: lower horizontal support recombination member
140: vertical coupling tension member 150: horizontal support recombination tension member
160: oblique coupling tension member 170: coupling reinforcing member
200: support member 210: hinge groove
300: horizontal support member 400: bracket connection tension member
500: elastic member

Claims (7)

As an anchorless assembly bracket system,
Horizontal support on which a hydraulic jack can be installed;
A plurality of bracket bodies which may be disposed on both sides of the bridge lower member, and fix the horizontal support member to the bridge lower member; And
A bracket connection tension member connecting and connecting a plurality of the bracket bodies that may be disposed on both sides of the bridge lower member; Including,
The bracket body,
A horizontal bracket member that can be disposed on the upper side of the bridge lower member; And
A support member disposed between the horizontal bracket member and the upper surface of the bridge lower member so that the bracket body can rotate with respect to the bridge lower member around a predetermined rotation center; Including,
The support member has a concave arc-shaped hinge groove,
The horizontal bracket member has a protruding arc-shaped hinge protrusion corresponding to the hinge groove,
The hinge groove and the hinge protrusion may be arranged to engage with each other,
The bracket body,
A vertical bracket member disposed on a side surface of the bridge lower member and coupled to one end of the horizontal bracket member; And
A horizontal support recombination member that is coupled to the vertical bracket member to fix the horizontal support member; Including more,
When the hinge protrusion rotates on the hinge groove, the horizontal bracket member, the vertical bracket member and the horizontal support recombination member can be rotated with respect to the bridge lower member,
The bracket body,
A vertical coupling tension member which penetrates the vertical bracket member in a vertical direction to couple the horizontal bracket member and the vertical bracket member; And
An oblique coupling tension member coupling the horizontal bracket member and the horizontal support recombination member; Further comprising an anchorless assembly bracket system.
delete The method according to claim 1,
The anchorless assembly bracket system,
An elastic member that may be disposed in a space between the bracket body and the bridge lower member and supports a portion of a lower surface of the horizontal bracket member; Including more,
The elastic member can perform a function of buffering the rotational movement of the bracket body, the anchorless assembly type bracket system.
delete The method according to claim 1,
The horizontal support recombination member,
A top horizontal support recombination member extending in a direction perpendicular to a side surface of the bridge lower member and having one end side thereof coupled to the vertical bracket member; And a lower horizontal support recombination member. Including,
The upper horizontal support recombination member and the lower horizontal support recombination member are arranged to be spaced apart vertically according to the height of the horizontal support member, an anchorless assembly type bracket system.
The method of claim 5,
The horizontal support recombination member,
A horizontal support recombination tension member which penetrates and is coupled to the other end of the upper horizontal support recombination member and the lower horizontal support recombination member; Further comprising an anchorless assembly bracket system.
As a construction method of an anchorless assembly type bracket system,
Installing a support member, a horizontal bracket member, and a bracket connection tension member on the upper surface of the bridge lower member;
Coupling and installing a vertical bracket member and a horizontal support recombination member to the horizontal bracket member; And
Coupling and installing a horizontal support member to the horizontal support recombination member; Including,
The anchorless assembly bracket system,
Horizontal support on which a hydraulic jack can be installed;
A plurality of bracket bodies which may be disposed on both sides of the bridge lower member, and fix the horizontal support member to the bridge lower member; And
A bracket connection tension member connecting and connecting a plurality of the bracket bodies that may be disposed on both sides of the bridge lower member; Including,
The bracket body,
A horizontal bracket member that can be disposed on the upper side of the bridge lower member;
A vertical bracket member disposed on a side surface of the bridge lower member and coupled to one end of the horizontal bracket member;
A horizontal support recombination member that is coupled to the vertical bracket member to fix the horizontal support member; And
A support member disposed between the horizontal bracket member and the upper surface of the bridge lower member so that the bracket body can rotate with respect to the bridge lower member around a predetermined rotation center; Including,
The support member has a concave arc-shaped hinge groove,
The horizontal bracket member has a protruding arc-shaped hinge protrusion corresponding to the hinge groove,
The hinge groove and the hinge protrusion may be arranged to engage with each other,
The bracket body,
A vertical bracket member disposed on a side surface of the bridge lower member and coupled to one end of the horizontal bracket member; And
A horizontal support recombination member that is coupled to the vertical bracket member to fix the horizontal support member; Including more,
When the hinge protrusion rotates on the hinge groove, the horizontal bracket member, the vertical bracket member and the horizontal support recombination member can be rotated with respect to the bridge lower member,
The bracket body,
A vertical coupling tension member which penetrates the vertical bracket member in a vertical direction to couple the horizontal bracket member and the vertical bracket member; And
An oblique coupling tension member coupling the horizontal bracket member and the horizontal support recombination member; A method of construction of an anchorless prefabricated bracket system further comprising a.

Images