KR101964848B1 - Bridge inspection passage installation method and its structure - Google Patents

Abstract

An object of the present invention to provide a bridge inspection facility installing method using prefabricated aluminum and a screw chemical anchor and a structure thereof, which use a screw chemical anchor bolt to fixedly install a bridge inspection facility so as to provide a passage installed on a pier constructed on the bottom of the bridge and enabling an operator to move, form a coupling fixing unit recessed so as to have a protrusion structure along an inner circumferential surface of a screw fixing hole into which the screw chemical anchor bolt is inserted and fixed, and improve coupling force between chemical solution and the screw fixing hole through the coupling fixing unit, thereby having very strong resistance to earthquake and an impact load, removing detachment possibility by separation of the chemical solution over time, and having a very excellent structure in pull-out strength and durability.

Description

{Bridge inspection passage installation method and its structure} A method of installing a bridge inspection facility using a prefabricated aluminum and a screw chemical anchor,

The present invention relates to a method of installing a bridge inspection facility using a prefabricated aluminum and a screw chemical anchor and a structure thereof, and more particularly, to a method of installing a bridge inspection facility Is fixed by using a screw chemical anchor bolt, and a joint fixing part is formed so as to have a protruding structure along the inner circumferential surface of the screw fixing hole into which the screw chemical anchor bolt is inserted and fixed, and the chemical solution and the screw fixing By improving the bonding force with the hole, the preformed aluminum and the screw which have a very strong resistance against the impact force and the impact load, have the possibility of coming off due to the peeling of the chemical solution due to the elapse of time, Bridges using chemical anchors It relates to the installation process and the structure of the search facilities.

In general, an anchor structure is used to install heavy structures or facilities. These anchor structures are used to attach various electrical and mechanical devices such as signboards and cabinets to the outer walls of concrete buildings or to fix various devices such as signboards and lights on the outer surfaces of street lights,

A set anchor most commonly used among such anchor structures is shown in Fig.

The set anchor includes a body formed with a shape of a bar body and formed with a thread line formed on an outer peripheral surface near the other end, a cone formed at one end of the body and having a shape of a triangular pyramid which is widened in a direction outside the body, An anchor which is formed in the shape of a cylinder surrounding the outer surface of the body and has one or more side cuts formed on the side thereof and which extends around the cut-out by external pressure, and a nut coupled to a thread formed on the outer circumferential surface to be.

A method of installing a set anchor on an outer wall such as a building or a street lamp includes the steps of forming a groove on an outer wall of the building or the like using a drill or the like and then attaching the anchor bolt to the groove through a head . When the body is pulled outwardly by tightening the nut, the head is fixed by extending the anchor so that the anchor is hooked on the inner wall of the groove.

Such set anchors are advantageous in that they are low in unit cost and relatively simple in construction method. However, since they are weak in pulling strength and low in resistance to shock and impact, the weight of the structure is low, It is applied to air conditioning and heating.

On the other hand, Fig. 37 shows a chemical anchor having a high pulling strength and excellent resistance to abrasion and impact loads as compared with the set anchor.

The chemical anchor is a structure in which a hardening agent or hardening accelerator is separately injected into the groove, an anchor is inserted, and the concrete anchor bolt is fixed to the outer wall of the concrete by waiting for the concrete to harden. In another structure, a capsule having another curing agent or a curing accelerator is previously inserted into the groove, and the chemical anchor bolt is forcibly inserted while breaking the capsule, so that a curing agent or a curing accelerator is injected from the inside of the capsule into the groove And the chemical anchor bolt is fixed to the outer wall of the concrete by waiting for the concrete to harden.

Such chemical anchors have high draw strength, excellent resistance to abrasion and impact loads, excellent safety even in a high humidity condition, and no stress due to expansion in the base material, (PLANT) construction, bridge construction, civil engineering work, steel foundation work, elevator construction, etc.).

However, since the chemical anchor has a structure in which the inner circumferential surface of the hole is formed to be flat, when the masonry phenomenon of the concrete occurs due to the passage of time, or when there is vibration such as ringing or the like, when the curing agent is installed on a ceiling such as a tunnel, There is a problem that a phenomenon occurs. That is, there is a problem that a safety accident such as a falling of a structure hardly occurs when a humid place or a mural phenomenon occurs, and a large-sized human accident occurs.

The anchor bolt may be firmly fixed to the concrete when the concrete is laid after inserting the anchor bolt because the hole is formed flat. However, when the concrete is mulled due to the passage of time, There is a problem in that the outer surface of the poured concrete is formed flat and is not firmly fixed to the anchor bolt hole and is pulled out. That is, there is a problem that the hardening agent (release agent) for fixing the anchor bolts is removed from the hole formed in the concrete wall.

Korean Patent Laid-Open No. 10-2008-0070107, integral type anchor bolt. Korean Patent Registration No. 10-0696310, Socket for screw fitting of chemical anchor bolts. Korean Patent Registration No. 10-1304300, a chemical anchor for vinyl tubes

SUMMARY OF THE INVENTION It is an object of the present invention to provide a bridge inspection facility which is installed on a bridge pier at the bottom of a bridge to provide a passage through which a worker can move, And a coupling fixing portion is formed so as to have a protruding structure along the inner circumferential surface of the screw fixing hole into which the screw chemical anchor bolt is inserted and fixed so that the coupling force between the chemical solution and the screw fixing hole is improved by the coupling fixing portion It is very strong against impact force and impact load by the use of a pre-assembled aluminum and screw chemical anchor that has a very strong pull strength and durability, And the structure thereof have.

The present invention also relates to a method for installing a bridge inspection facility using a prefabricated aluminum and screw chemical anchor that can be easily and firmly installed in a prefabricated safety inspection frame body composed of an aluminum material, Structure.

In order to accomplish the above object, an installation structure of a bridge inspection facility using a prefabricated aluminum and a screw chemical anchor according to the present invention includes a passage through which a worker can move to a bridge pier installed at the bottom of a bridge using a prefabricated aluminum and a screw chemical anchor A bridge safety checkpoint frame installed to provide; And a screw chemical anchor means installed to securely and firmly fix the bridge safety inspection body to the bridge pier, wherein the screw chemical anchor means comprises: a screw fixing hole formed at a predetermined depth in the bridge pier; An anchor bolt installed to be fixedly inserted into the screw fixing hole and fixing the bridge safety inspection frame; A chemical solution inserted into the screw fixing hole to be hardened so that the anchor bolt is fixed to the screw fixing hole; And a coupling and fixing unit formed in a spiral shape so as to have a protruding structure protruding outward at a predetermined interval on the inner circumferential surface of the screw fixing hole so as to improve the coupling force between the chemical solution and the screw fixing hole .

Wherein the bridge safety inspection frame comprises: a wall vertical bar and an upper end of the wall vertical bar fixed to a wall of the bridge pier at a predetermined interval so as to be fixed to the bridge pier by the screw chemical anchor means, An anchor fixing unit having an upper fixture fixed to a pier and a lower fixture fixed to a lower end of the wall vertical bar and fixed to the pier by the anchor bolt; A horizontal support bar installed at the lower part of the anchor fixing part and installed to protrude outwardly of the lower fixture so as to provide a passage for an operator to walk, a floor installed to be seated on the horizontal support bar and provided with a passage through which the pedestrian can move, A passage portion formed of a plate; A reinforcing portion comprising a supporting piece provided on an upper portion of the horizontal supporting bar so as to reinforce a bottom portion of the passage portion, and a reinforcing pedestal fixed to the supporting piece to reinforce the bottom plate; A railing fixture fixed to the outer end of the horizontal support bar so that the pedestrian can safely move through the passage portion reinforced by the reinforcement portion, and a railed vertical bar and a railed vertical bar installed upright so as to fix the lower end thereof to the railed fastener A safety rail part comprising a railing safety bar provided vertically at regular intervals between the rail vertical bars; And an engaging portion formed of a high tensile strength bolt and a nut, which are installed to fix the respective joint portions of the safety rail portion, the passage portion, and the anchor fixing portion.

The upper fixture comprises: A vertical bar upper inserting / fixing part formed to be able to insert an upper end of the wall vertical bar and coupled to penetrate the high tension bolt to fix the upper end of the wall vertical bar; An upper fixed blade piece protruding from both sides of the vertical bar upper insertion and fixing member, and to which the anchor bolt can be installed; And an upper fastening piece protruding from an upper portion of the upper fixed blade and installed to be hooked on an upper portion of the pier.

The lower fixture includes: A vertical bar lower insertion fastener formed to be inserted into a lower end of the wall vertical bar and coupled to penetrate the high tension bolt to fix a lower end of the wall vertical bar; A support bar insertion and fixing part protruding from the vertical bar lower insertion fixing part to be able to insert the horizontal support bar and being capable of fixing the one end of the horizontal support bar so as to penetrate the high tension bolt; And a lower fixed blade piece protruding from both sides of the vertical bar lower insertion fastener piece and provided with the anchor bolt.

Wherein the handrail fastener comprises: A lower rail insertion and fixing fastener which is formed such that a lower end of the barrel vertical bar can be inserted therein and is capable of fixing the lower end of the barrel vertical bar by being coupled with the high tension bolt; A support bar outer insertion and fixing member protruding from the lower rail insertion and fixing piece to be inserted into the horizontal support bar and being capable of fixing the outer end of the horizontal support bar so as to penetrate through the high tension bolt; And a support bar fixing blade protrusion protruding from both sides of the lower rail insertion fitting member such that an outer end of the horizontal support bar inserted into the support bar outer insertion fixing member is closely contacted.

The reinforcing portion may include: a T-shaped coupling groove formed at a central portion of an upper end surface of the horizontal support bar so that a lower end of the supporting piece is fitted, and a lower end of the supporting piece fitted to the T- And the upper end of the supporting piece is formed so as to be spaced apart at a predetermined interval so that the reinforcing support plate is seated and supported, and the reinforcing support plate is seated and supported on the T-type seating piece.

The reinforcing portion may include: a reinforcing support bar fitted in a lower portion of the horizontal support bar, wherein a rail-shaped coupling groove is formed in a lower portion of the horizontal support bar, and a rail- It is preferable that the engaging protrusion is formed on the upper portion of the horizontal support bar.

In order to accomplish the above object, the present invention includes a screw chemical anchor means installed to securely fix a direct-type facility to a concrete wall or a ceiling securely using a prefabricated aluminum and a screw chemical anchor, The screw chemical anchor means comprises: a screw fixing hole formed at a predetermined depth on the concrete wall surface or the ceiling; An anchor bolt installed to be fixedly inserted into the screw fixing hole and fixing the direct-type facility; And a chemical solution inserted into the screw fixing hole so that the anchor bolt is fixed to the screw fixing hole and cured, wherein the chemical solution is applied to the inner surface of the screw fixing hole at a predetermined interval And a coupling and fixing part formed to be spirally formed so as to have a protruding structure protruding outward.

Wherein the engaging and fixing portion has a cross-sectional shape of one of a trapezoidal shape, a square shape, and a saw tooth shape, the cross-section of the thread extending into the inner circumferential surface of the screw fixing hole, It is preferable that the gap is formed to be wider than the depth at which it is recessed.

Preferably, the engaging and fixing portion is formed so that an end portion of the inner circumferential surface of the screw fixing hole is formed to have an inner diameter of about three times the inner diameter of the screw fixing hole.

Wherein the engaging and fixing portion is formed by using a tab member formed with a female screw at regular intervals (pitch) along the outer circumferential surface of the female screw so as to form a thread to be inserted into the inner circumferential surface of the screw fixing hole, A tab member having a spacing of 3 to 6 times greater than the interval of the valleys formed on the tab member so as to prevent breakage of the concrete when forming thread threads formed in the fixing hole is used to form a joint fixing portion .

The coupling and fixing unit may include: a first coupling and fixing unit having a threaded double helical structure and a second coupling and fixing unit, wherein the first coupling and fixing unit and the second coupling and fixing unit have different sizes .

The anchor bolt includes: a body portion inserted into the screw fixing hole; And a spiral fixed protrusion protruding from an outer circumferential surface of the body portion. The fixed protrusion is formed as an inclined surface protruding from a front side of the insertion direction of the anchor bolt while extending rearward. When the anchor bolt is inserted, A diffusing surface for diffusing the chemical solution so that the chemical solution is diffused to the outside of the anchor bolt by the inclined surface and the chemical solution is inserted into the joint fixing portion; And a fixing surface formed so as to be inclined inward from the rear end of the diffusion surface to fix the chemical solution.

Wherein the chemical solution comprises: an outer pack of a vinyl material which receives and encapsulates a subject in which a filler of calcium carbonate, sand, and silica is mixed with an unsaturated polyester resin, an epoxy resin, a polyurethane resin, and a phenol resin; A first inner capsule of a glass material filled with powdery benzo peroxide (BPO) as a powder hardener which is embedded in the external pack and capable of rapidly curing the matrix; And a second inner capsule of glass filled with DMA (Dimethyl Aniline) as a hardening accelerator which is built in the outer pack and can quickly cure the base material, wherein the rear end of the outer pack has an outer It is preferable that a conical groove is formed so as to be inserted while being guided to the center of the pack.

To accomplish the above object, there is provided a method of installing a bridge inspection facility using a prefabricated aluminum and a screw chemical anchor according to the present invention, in which a worker can move to a bridge pier installed at the bottom of a bridge using a prefabricated aluminum and a screw chemical anchor And a screw chemical anchoring step of securing a bridge safety inspection frame to the bridge pier to securely and securely fix the bridging safety inspection frame to the bridge pier so as to provide a passageway, wherein the step of installing the screw chemical anchor includes: forming a screw fixing hole ; Injecting a chemical solution into the screw fixing hole; And a step of inserting an anchor bolt into the screw fixing hole so as to be fixed by the chemical solution, wherein the step of forming the screw fixing hole comprises the steps of: Forming a coupling fixture which is inserted into the screw fixing hole so as to have a protruding structure protruding outward at a predetermined interval on the inner circumferential surface of the screw fixing hole so that the chemical solution can be inserted and fixed in a spiral manner; And the bridge safety inspection frame is fixed to the anchor bolt.

Wherein the bridge safety inspection frame comprises: an anchor fixing part comprising a wall vertical bar rising up at a predetermined distance from a wall surface of the pier, an upper fixing part fixing the upper end of the vertical wall, and a lower fixing part fixing the lower end of the wall vertical bar; A horizontal support bar installed to protrude outwardly of the lower fixture to provide a passage for an operator to walk on the lower portion of the anchor fixing unit, and a bottom plate secured to the horizontal support bar to provide a passage through which the pedestrian can move, part; A reinforcing portion comprising a support piece provided on an upper portion of the horizontal support bar so as to reinforce a bottom portion of the passage portion, and a reinforcement pedestal fixed to the support piece to reinforce the bottom plate; A handrail vertical bar fixedly installed on an outer end of the horizontal support bar so that the pedestrian can safely move the passage part reinforced by the reinforcement part, a handrail vertical bar installed upright to fix the lower end of the handrail fixture, A safety rail part comprising a railing safety bar installed to be vertically spaced to connect with the rail; And an engaging part formed of a high tensile strength bolt and a nut, which are installed to fix the joint parts of the safety rail part, the passage part and the anchor fixing part, wherein the upper fixing part comprises: A vertical bar upper insertion fixing member and a vertical bar upper insertion bar fixing member, which are formed such that the upper end of the wall vertical bar can be inserted, And an upper fastening piece protruding from an upper portion of the upper fixing blade and adapted to be hooked on an upper portion of the pier, ; A vertical bar lower insertion and fixing piece formed to be able to insert the lower end of the vertical wall of the wall and coupled with the high tension bolt to penetrate the lower end of the wall vertical bar, A support bar insertion and fixing part formed to be able to insert a horizontal support bar into which the high tension bolt is inserted so as to be able to fix one end of the horizontal support bar and protruding to both sides of the vertical bar lower insertion fixture, Wherein the railing fastener comprises: a lower fixed blade piece, A lower rail inserted and fixed so as to allow the lower end of the barrel vertical bar to be inserted therethrough and the lower bar of the barrel vertical bar being fixedly coupled with the high tension bolt, And an outer end of a horizontal support bar inserted into the support bar outside insertion fastener is formed such that the high tension bolt can be inserted therethrough to fix the outer end of the horizontal support bar, And a reinforcing portion formed at a center of an upper end surface of the horizontal support bar, wherein a T-shaped coupling groove is formed in the upper end of the horizontal support bar, And the lower end of the support piece fitted into the T-shaped coupling groove corresponds to the T-shaped coupling groove The upper end of the support piece is formed such that a T-shaped seat piece is formed at a predetermined distance so as to support and support the reinforcing support plate, and the reinforcing support plate is seated and supported on the T-type seat piece. It is preferable that the lower fixture is fixed to the anchor bolts installed in the step of installing the screw chemical anchors.

The step of forming the screw fixing hole may include the steps of: forming a hole using a bit on a concrete wall or floor so that the anchor bolt can be installed; Forming a coupling portion having a female screw shape on an inner circumferential surface of the hole by the tab member while inserting and rotating a tap member into the hole; Separating the tab member from the coupling fixture by reversing rotation after forming the coupling fixture; And removing the internal dust of the screw fixing hole by repeating the operation of the screw fixing hole at least twice by using a brush, an air pump, and a blower in the hole formed with the coupling and fixing part.

Wherein the tab member used in the step of forming the joint fixing portion comprises: a tab member having a female screw formed at regular intervals (pitch) along the outer circumferential surface so as to form a thread to be inserted into the inner circumferential surface of the screw fixing hole Wherein a tab member having a spacing of 3 to 6 times greater than the spacing of the troughs is formed on the tab member to prevent breakage of the concrete when the screw thread is formed in the screw fixing hole, It is preferable to form the coupling portion.

According to the installation method of the bridge inspection facility using the prefabricated aluminum and screw chemical anchor according to the present invention and the structure thereof, the screw chemical anchor bolt is formed so as to have a projecting structure along the inner circumferential surface of the screw fixing hole into which the screw chemical anchor bolt is inserted, So that the coupling strength between the chemical solution and the screw fixing hole can be improved by the coupling fixing portion.

Also, according to the present invention, the resilient force and the impact load are excellent compared with the conventional chemical method by the joint fixing part, and there is no possibility of the detachment of the concrete and the chemical solution due to the elapse of time.

In addition, the present invention has the effect of enhancing the fixing force of a structure subjected to severe vibration repeatedly by the joint fixing portion.

In addition, the present invention has the effect of preventing a falling accident of a structure caused by shrinkage and relaxation of an anchor portion due to four-pass by the joint fixing portion, thereby preventing a safety accident in advance.

In addition, the present invention has an effect that pull strength and durability can be improved even when the underwater structure (underwater bridge, dam, etc.) is attached by the joint fixing portion.

Therefore, the present invention can be used to install heavy structures and facilities in various fields such as plant (PLANT) construction, bridge construction, civil engineering work, steel foundation work, elevator construction, It is effective.

Particularly, the present invention has an effect that the bridge safety inspection frame is made of an aluminum material and is constructed in a prefabricated manner, so that the bridge safety inspection frame can be easily and firmly assembled.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a bridge safety inspection body installed on a bridge pier as an example of a bridge inspection facility using a prefabricated aluminum and a screw chemical anchor according to the present invention,
FIG. 2 is a view showing the bridge safety inspection body shown in FIG. 1 from the bottom,
FIG. 3 is a front view of the bridge safety inspection body shown in FIG. 1,
Fig. 4 is a view showing the bridge safety inspection body shown in Fig. 1 from above,
FIG. 5 is a side view of the bridge safety inspection body shown in FIG. 1,
FIG. 6 is a view showing a state in which the bridge safety check frame shown in FIG. 1 is separated,
FIG. 7 is a view showing an upper fixture of an anchor fixing unit provided in a bridge safety inspection frame shown in FIG. 1,
Fig. 8 is a view showing the upper fixture shown in Fig. 7 viewed from another direction,
Fig. 9 is a plan sectional view of the upper fixture shown in Fig. 7,
10 is a view showing a lower fixture of an anchor fixing part provided in the bridge safety inspection frame shown in Fig. 1,
Fig. 11 is a plan sectional view of the lower fixture shown in Fig. 10,
FIG. 12 is a view showing a rail fastener of a safety rail provided in the bridge safety inspection frame shown in FIG. 1,
Fig. 13 is a plan sectional view of the rail fastener shown in Fig. 12,
FIG. 14 is a view showing a state in which a horizontal support bar and a support piece provided in the bridge safety inspection frame shown in FIG. 1 are separated;
FIG. 15 is a view showing a state in which a reinforcing support bar, a lower fixture and a rail fastener are separated from each other at a lower portion of a horizontal support bar provided in the bridge safety inspection frame shown in FIG. 1,
Fig. 16 is a view showing the state in which the reinforcing supporting bar is separated from the lower part of the horizontal supporting bar in Fig. 15, and the length of the reinforcing supporting bar is changed to the length of the horizontal supporting bar,
FIG. 17 is a view showing the horizontal support bar and the side surface of the reinforcing support bar shown in FIG. 16,
FIG. 18 is a view showing a state in which a horizontal support bar, a reinforcement support bar and a lower fixture shown in FIG. 15 are combined with a handrail fastener,
19 to 21 are views showing an example of assembling and assembling various types of bridge inspection facilities using the prefabricated aluminum and screw chemical anchor according to the present invention,
22 is a view showing a structure of a screw chemical anchor means for fixing a bridge inspection facility using a prefabricated aluminum and a screw chemical anchor according to the present invention,
23 is a view showing a state in which a screw fixing hole is formed in a wall for fixing a bridge inspection facility using a prefabricated aluminum and a screw chemical anchor according to the present invention,
FIG. 24 is a view showing a state where a chemical solution is injected into a screw fixing hole formed in a wall for fixing a bridge inspection facility using a prefabricated aluminum and a screw chemical anchor according to the present invention,
25 to 30 are views showing the structure of screw chemical anchor means for fixing a bridge inspection facility using the prefabricated aluminum and screw chemical anchor according to the present invention,
31 is an enlarged view of an anchor bolt provided in a screw chemical anchor means for fixing a bridge inspection facility using a prefabricated aluminum and a screw chemical anchor according to the present invention,
32 is a view showing an example of a chemical solution injected into a screw fixing hole of a screw chemical anchor means for fixing a bridge inspection facility using a prefabricated aluminum and a screw chemical anchor according to the present invention,
33 to 34 are views showing various examples of the tab member for forming the screw fixing hole in the screw chemical anchor means for fixing the bridge inspection facility using the prefabricated aluminum and the screw chemical anchor according to the present invention,
35 is a block diagram of an installation method of a bridge inspection facility using a prefabricated aluminum and a screw chemical anchor according to the present invention,
36 is a view showing a structure of a conventional set anchor,
37 is a view showing a structure of a general chemical anchor.

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

Prior to the description of the present invention, the following specific structure or functional description is merely illustrative for the purpose of describing an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention may be embodied in various forms , And should not be construed as limited to the embodiments described herein.

In addition, embodiments according to the concept of the present invention can make various changes and have various forms, so that specific embodiments are illustrated in the drawings and described in detail herein. However, it should be understood that the embodiments according to the concept of the present invention are not intended to limit the present invention to specific modes of operation, but include all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.

FIG. 1 is a view showing a bridge safety inspection body installed on a bridge pier as an example of a bridge inspection facility using the prefabricated aluminum and screw chemical anchor according to the present invention, and FIG. 2 is a cross- FIG. 3 is a front view of the bridge safety inspection frame shown in FIG. 1, FIG. 4 is a view showing the bridge safety inspection frame shown in FIG. 1, and FIG. FIG. 1 is a view showing a bridge safety inspection frame shown in FIG. 1, and FIG. 6 is a view showing a state in which a bridge safety check frame shown in FIG. 1 is separated.

7 is a view showing an upper fixture of the anchor fixing unit provided in the bridge safety inspection frame shown in Fig. 1, Fig. 8 is a view showing the upper fixture shown in Fig. 7 in another direction, 10 is a view showing the lower fixture of the anchor fixing part provided in the bridge safety inspection frame shown in Fig. 1, and Fig. 11 is a view showing the lower fixing part of the anchor fixing part shown in Fig. Fig. 12 is a view showing the rail fastener of the safety rail part provided in the bridge safety inspection frame shown in Fig. 1, Fig. 13 is a plan sectional view of the rail fastener shown in Fig. 12, FIG. 15 is a view showing a state in which a horizontal support bar and a support member provided in a bridge safety inspection frame body are separated from each other. FIG. FIG. 16 is a view showing a state in which the fixture is separated, FIG. 16 is a view of the state in which the reinforcing support bar is separated from the horizontal support bar at the lower portion of FIG. 15 and the length of the reinforcing support bar is changed to the length of the horizontal support bar Fig. 17 is a view showing the horizontal support bar and the side surface of the reinforcing support bar shown in Fig. 16, Fig. 18 is a side view of the horizontal support bar and the reinforcement support bar, The upper fixture and the railing vertical bar are combined.

19 to 21 are views showing examples of assembling and installing various types of bridge inspection facilities using the prefabricated aluminum and screw chemical anchor according to the present invention.

FIG. 22 is a view showing a structure of a screw chemical anchor means for fixing a bridge inspection facility using the prefabricated aluminum and screw chemical anchor according to the present invention, and FIG. 23 is a view showing the structure of the prefabricated aluminum and screw chemical anchor according to the present invention FIG. 24 is a view showing a state in which a screw fixing hole is formed in a wall for fixing a bridge inspection facility, FIG. 24 is a view showing a state where a screw fixing hole is formed in a wall for fixing a bridge inspection facility using the prefabricated aluminum and the screw chemical anchor according to the present invention FIGS. 25 to 30 illustrate structures of various modified examples of the screw chemical anchor means for fixing the bridge inspection facility using the prefabricated aluminum and the screw chemical anchor according to the present invention. FIG. 31 is a sectional view of a prefabricated aluminum FIG. 32 is an enlarged view of the structure of an anchor bolt provided in a screw chemical anchor means for fixing a bridge inspection facility using a screw chemical anchor, and FIG. 32 is a view showing an anchor bolt fixed to a bridge inspection facility using a prefabricated aluminum and a screw chemical anchor according to the present invention. FIGS. 33 to 34 are views showing an example of a chemical solution injected into a screw fixing hole provided in the screw chemical anchor means. FIG. 33 to FIG. 34 are views showing an example of a chemical solution injected into the screw fixing hole of the screw chemical anchor means, FIG. 35 is a block diagram of a method of installing a bridge inspection facility using the prefabricated aluminum and screw chemical anchor according to the present invention .

As shown in these drawings, the present invention includes a bridge safety inspection frame body 100 installed to provide a passage through which a worker can move to a bridge pier installed at the bottom of a bridge using a prefabricated aluminum and a screw chemical anchor, And a screw chemical anchor means 200 installed to securely and firmly fix the safety inspection frame 100 to the bridge pier.

The bridge safety inspection frame 100 includes an anchor fixing part 110 fixed to a pier by a screw chemical anchor means 200 and an anchor fixing part 110 installed at a lower portion of the anchor fixing part 110, A reinforcing portion 130 installed to reinforce a bottom portion of the passage portion 120 and a passage portion 120 reinforced by the reinforcing portion 130, And the anchor fixing part 110 are fixed to the anchor fixing part 110. The safety fixing part 140 is installed at the outer end of the passage part 120 so that the safety part 140 can be safely moved, And a coupling part 150 composed of a high tension bolt 152 and a nut 154 which are installed so as to be able to be rotated.

The structure of the anchor fixing part 110 constituting the bridge safety inspection frame 100 is such that the screw chemical anchor means 200 is fixed to the bridge pier so as to be spaced apart from the wall surface of the pier, And a lower fixture 116 is coupled and fixed to a lower end of the wall vertical bar 112. The upper fixture 114 is fixed to the upper end of the wall vertical bar 112, And the upper fixture 114 and the lower fixture 116 are fixed to the pier by the anchor bolts.

7 to 9, the upper fixing part 114 is formed such that the upper end of the wall vertical bar 112 can be inserted, and the upper fixing bolt 152 of the upper part fixing part 114, A vertical bar upper insertion and fixing piece 114a which is coupled to the vertical bar upper insertion and fixing piece 114a so as to penetrate the vertical bar upper fixing bar 114 and can fix the upper end of the vertical wall bar 112, And an upper fixing engaging piece 114c protruding from an upper portion of the upper fixing blade piece 114b so as to be hooked on the upper portion of the pier.

10 to 11, a lower end of the vertical wall 112 may be inserted into the lower fixture 116, and the lower end of the high tension bolt 152 of the engaging portion 150 may be inserted into the lower fixture 116, A vertical bar lower insertion and fixing piece 116a which is coupled to the vertical bar lower insertion and fixing piece 116a so as to penetrate the vertical bar lower wall 112 and can fix the lower end of the vertical wall bar 112, The horizontal support bar 122 is inserted into the horizontal support bar 122 and the high tension bolt 152 of the coupling part 150 is inserted therethrough to fix one end of the horizontal support bar 122, And a lower fixed blade piece 116c protruding from both sides of the vertical bar lower insertion fixing piece 116b and provided with an anchor bolt.

6, the configuration of the passage portion 120 provided at the lower portion of the anchor fixing portion 110 having the above-described structure and providing a path for an operator to walk can be formed on the outer side of the lower fixing portion 116 A horizontal support bar 122 is installed to protrude from the horizontal support bar 122 and a bottom plate 126 is installed to be seated on the horizontal support bar 122 to provide a passage through which the pedestrian can be moved by the bottom plate 126.

6 and 14, the reinforcing part 130 is provided to support the bottom part of the passage part 120. The supporting part 132 is formed on the upper part of the horizontal supporting bar 122, A reinforcing support plate 134 is installed to be fixed to the support piece 132 and a bottom plate 126 is placed on the reinforcing support plate 134 to reinforce the bottom plate 126 .

At this time, the reinforcing part 130 preferably has a T-shaped coupling groove 122a formed at the center of the upper end surface of the horizontal support bar 122, and the lower end of the supporting piece 132 is fitted to the reinforcing part 130. Specifically, The lower end of the support piece 132 is formed to correspond to the T-shaped engagement groove 122a to be fitted into the T-shaped engagement groove 122a. The upper end of the support piece 132 is connected to the reinforcing support plate 134, And the T-shaped seat cushion 132a is formed at a predetermined interval so that the T-shaped seat cushion 132a is seated and supported.

The reinforcing portion 130 may be reinforced in such a manner that the reinforcing supporting bar 124 is coupled to the lower portion of the horizontal supporting bar 122. 15 to 18, a rail-shaped coupling groove 124b is formed in the lower portion of the horizontal support bar 122, and the coupling groove 124b is formed to be engaged with the coupling groove 124b. The reinforcing supporting bars 124 having the rail-shaped engaging protrusions 124a can be fitted and reinforced.

At this time, the length of the reinforcing support bars 124 may be different depending on the load to be supported. 15, the reinforcing supporting bar 124 may be formed to have a length corresponding to about half of the horizontal supporting portion 122, or the length of the reinforcing supporting bar 124 may be set to be horizontal It can be assembled and used in a length corresponding to the support bar 122, which can reduce the cost.

When the reinforcing support bar 124 is coupled to the lower portion of the horizontal support bar 122 as described above, the support bar insertion fixing piece 116b of the lower fixture 116 is reinforced with the horizontal support bar 122 The supporting bar 124 must be separated from the upper and lower portions so as to be inserted and coupled (refer to FIG. 15).

The structure of the safety guard part 140 installed so that the pedestrian can safely move through the passage part 120 reinforced by the reinforcing part 130 is configured to be fixed to the outer end of the horizontal support bar 122, A handrail vertical bar 144 is installed upright so that the lower end of the handrail vertical bar 144 is connected to the handrail vertical bar 144, And a railing safety bar 146 is installed at upper and lower portions at regular intervals.

12 to 13, the lower end of the railing vertical bar 144 may be inserted, and the upper end of the high tension bolt 152 of the coupling part 150 may be inserted into the lower end of the railing vertical bar 144, And a horizontal supporting bar 122 protruding from the lower rail fixing part 142a and inserted into the horizontal supporting bar 122, A support bar outer insertion and fixing piece 142b which is formed to be capable of fixing the outer end of the horizontal support bar 122 by being engaged with the high tension bolt 152 of the connection part 150, And a supporting bar fixed blade piece 142c protruding from both sides of the lower rail insertion and fixing piece 142a so that the outer end of the horizontal support bar 122 inserted into the outer insertion fixing piece 142b is closely contacted Do.

Each of the components of the bridge safety inspection frame 100 constructed as described above is made of aluminum and can be assembled as shown in FIG. 6, and can be easily assembled and assembled into the bridge pier in various forms as shown in FIGS. 19 to 21 .

Accordingly, the bridge safety inspection frame 100 according to the present invention can safely move the operator by reinforcing the passage part 120 by the reinforcement part 130, and the bridge can be safely moved by the screw chemical immobilization means 200, So that it does not fall off once it is installed.

The screw chemical anchor means 200 for fixing the bridge safety inspection frame 100 to the bridge pier includes the screw fixing hole 210, the anchor bolts 220, the chemical solution 230, and the joint fixing portion 240, And the like.

As shown in FIG. 23, the screw fixing hole 210 is a hole formed at a position where the anchor bolt 220 can be installed, that is, at a piercing angle made of concrete to a predetermined depth.

In addition, the anchor bolts 220 are installed to be fixedly inserted into the screw fixing holes 210 to fix the bridge safety inspection frame 100. That is, the upper fixture 114 and the lower fixture 116 of the anchor fixing unit 110 constituting the bridge safety inspection frame 100 can be fixed to the bridge.

31, the anchor bolt 220 includes a body 222 inserted into the screw fixing hole 210 and a helical fixing protrusion 224 protruding from the outer circumferential surface of the body 222 ).

At this time, the fixing protrusion 224 preferably has a cross-sectional structure having a diffusion surface 224a and a fixing surface 224b. That is, the diffusion surface 224a is formed as an inclined surface that protrudes from the front in the insertion direction of the anchor bolt 220 while being extended backward. When the anchor bolt 220 is inserted, the diffusion surface 224a is exposed to the chemical The solution 230 can diffuse out of the anchor bolt 220 and the chemical solution 230 can be diffused such that the chemical solution 230 is inserted into the joint fixing part 240. The fixing surface 224b can diffuse the diffusion So that the chemical solution 230 can be firmly fixed to the anchor bolt 220. The anchor bolt 220 may be fixed to the anchor bolt 220 at a predetermined angle.

In addition, the chemical solution 230 is inserted into the screw fixing hole 210 to fix the anchor bolt 220 and hardened.

As shown in FIG. 32, the chemical solution 230 may include a resin such as an unsaturated polyester resin, an epoxy resin, a polyurethane resin, a phenol resin, or the like, which contains a filler such as calcium carbonate, An outer pack 232 of a vinyl material to be sealed which is sealed in the outer pack 232 and a powder curing agent which is embedded in the outer pack 232 and capable of rapidly curing the base material, 1 inner capsule 234 and a second inner capsule 236 made of glass filled with Dimethyl Aniline (DMA) as a hardening accelerator which can be quickly embedded in the outer pack and can be rapidly cured.

At this time, the rear end of the outer pack 232 may be formed with a conical recessed groove 238 for guiding the anchor bolt 220 to the center of the outer pack 232 while being inserted.

In particular, the present invention can use the non-encapsulated injectable chemical solution 230 described above as the chemical solution 230.

The coupling fixture 240 is configured to characterize the present invention and the coupling fixture 240 is fixed to the screw fixation hole 210 so as to improve the coupling force between the chemical solution 230 and the screw fixing hole 210. [ And is formed so as to have a protruding structure protruding outward at regular intervals on the inner circumferential surface of the hole 210 so that the chemical solution 230 can be inserted and fixedly coupled in a spiral manner.

As shown in FIGS. 24 to 26, the coupling and fixing unit 240 may have various shapes such that the cross-section of the threads projecting into the inner circumferential surface of the screw fixing hole 210 can not be released after the chemical solution is cured. have. That is, the coupling portion 240 may have a trapezoidal cross section as shown in FIG. 24, or may have a rectangular cross section as shown in FIG. 25, or may have a sawtooth shape As shown in Fig.

At this time, it is preferable that the joint fixing part 240 is formed so as to be spaced apart from the recessed depth by a distance between the thread and the thread formed to be recessed along the inner circumferential surface of the screw fixing hole 210.

Normally, male and female threads of a bolt and a nut, which are provided to be mutually coupled with each other in mechanical parts and the like, must be mutually engaged. For this reason, the tabs for forming the female thread must have a constant pitch And the threaded portion of the joint fixing portion 240 is formed on the inner circumferential surface of the screw fixing hole 210 formed in the concrete by using the thus formed conventional tap member, There is a problem in that it is not possible to form a thread in the actual process. In other words, although there may be some documents describing a part of the shape of grooves recessed inward of the fixing hole in the related art, it is an idea that can not be processed in actuality, and the present invention has a structure of a new structure, There is a feature that makes it possible to actually process.

30 to 31 show a tab member of a new structure applied to the present invention.

As shown in the drawing, the tab member 300 according to the present invention includes a female screw fastener 302 so as to form a fastening portion 240 having a threaded cross section so as to be inserted into the inner circumferential surface of the screw fastening hole 210 (Pitch) p along the outer circumferential surface, and the discharge groove 304 through which the processed chip (concrete powder) can be discharged is formed in a spiral or straight line shape.

At this time, the spacing p of the female screw fastener 302 formed on the outer circumferential surface of the tab member 300 is formed to be wide. That is, it is preferable that the spacing of the female threads 302 is formed to be three to six times longer than the spacing of the valleys, and that the spacing of the female threads 302 is wide, The engaging and fixing part 240 can be formed so as to have a threaded section which is recessed in the inner circumferential surface of the screw fixing hole 210.

According to the present invention, by using the tab member (300) having a wide pitch interval for machining the female screw, the joint fixing part (240) having a thread section crossing the inner circumferential surface of the screw fixing hole (210) Since the joint fixing part 240 can be formed, the present invention can realize the configuration limited to the conventional idea.

The screw chemical anchor means 200 having the above-described structure is not limited to the fixing of the bridge safety inspection frame 100 as in the present invention, but can fix all the facilities and the like installed in the tunnel. That is, all of the direct-type facilities can be fixedly installed.

For example, the present invention is characterized in that a weight structure or a facility can be fixedly installed when a plant (PLANT) construction, a bridge construction work, a civil engineering work, a steel foundation foundation work, an elevator construction work,

27, the coupling unit 240 may include a first coupling unit 242 having a double helical structure and a second coupling unit 244, It is preferable that the second coupling part 242 and the second coupling part 244 have different sizes so that different drawing strengths are applied.

As described above, in the case where the coupling and fixing unit 240 includes the first coupling and fixing unit 242 and the second coupling and fixing unit 244 having different sizes, It is possible to maintain a fixing force in a more rigid state. For example, when the first coupling portion 242 is formed to be larger than the second coupling portion 244, a large pulling force is applied to the first coupling portion 242, A small pullout strength is applied in the state, so that a stronger pullout stress can be acted on the whole due to the mutual interlocking function due to the double spiral structure.

In addition, as shown in FIGS. 28A and 28B to 30, the coupling and fixing unit 240 may be formed at the end of the screw fixing hole 210 so that the chemical solution can not be removed after curing . 28A, the coupling fixing part 240 may be formed to have a semicircular cross section at the end of the screw fixing hole 210, or may be formed to have a semicircular cross section at the end of the screw fixing hole 210 as shown in FIG. And it may be formed so as to have a triangular cross section at its end portion.

In particular, as shown in FIG. 29, it may be formed wide at the end of the screw fixing hole 210 and at the same time, may be integrally formed with the screw fixing hole so as to be recessed as described above. Further, as shown in FIG. 30, the engaging and fixing part 240 may have a wider inner portion of 1/3 of the entire length of the screw fixing hole 210. That is, it is preferable that the diameter of the coupling and fixing unit 240 is formed to be wide at the end of the inner circumferential surface of the screw fixing hole 210 so as to have an inner diameter of about three times the inner diameter of the screw fixing hole 210.

As shown in the drawings, a method of installing a bridge inspection facility using a prefabricated aluminum and a screw chemical anchor according to the present invention provides a passage through which a worker can move to a bridge pier installed at the bottom of a bridge by using a prefabricated aluminum and a screw chemical anchor And a screw chemical anchor installation step of securing the bridge safety inspection frame 100 to the bridge pier securely and securely.

The anchor fixing unit 110 is fixed to the pier, and the anchor fixing unit 110 is installed at a lower portion of the anchor fixing unit 110. The anchor fixing unit 110 is fixed to the pier, A reinforcing portion 130 provided to reinforce the bottom of the passage portion 120 and a reinforcing portion 130 reinforced by the reinforcement portion 130. [ A safety margin section 140 provided at an outer end of the passage section 120 so that a pedestrian can safely move through the passage section 120 and a safety margin section 140 installed between the safety margin section 140 and the passage section 120 and the anchor fixing section 110 And a coupling part 150 composed of a high tension bolt 152 and a nut 154 installed to fix each coupling part of the bridge safety inspection body 100. The bridge safety inspection frame 100 is constructed by the above- same.

35, the step of installing the screw chemical anchor 100 for fixing the bridge safety inspection frame 100 to the bridge pier may include the step of applying a predetermined depth to the wall or bottom of the pier so that the anchor bolt 220 can be installed, A step of injecting a chemical solution 230 into the screw fixing hole 210 and a step of injecting the chemical solution 230 into the screw fixing hole 210 so as to be fixed by the chemical solution 230. [ And inserting and installing the anchor bolts 220.

The step of forming the screw fixing hole 210 may include a step of fixing the screw fixing hole 210 to the screw fixing hole 210 so that the coupling force between the chemical fixing solution 230 injected into the screw fixing hole 210 and the screw fixing hole 210 is improved, 210), which is formed to have a protruding structure protruding outwardly at a predetermined interval, so that the chemical solution (230) can be inserted and fixed in a spiral manner. .

The step of forming the screw fixing hole 210 may be more specifically described as follows: a hole is formed in the concrete wall or the floor using a bit so that the anchor bolt 220 can be installed; A step of forming the joint fixing part 240 so as to have a cross-sectional shape of a thread which is recessed into the inner circumferential surface of the hole by the tab member 300 while inserting and rotating the tap member 300, Separating the tab member 300 from the coupling part 240 by rotating the coupling part 240 in a reverse direction after the coupling part 240 is formed; And removing the internal dust of the screw fixing hole 210 by repeating the operation twice or more.

At this time, the tab member 300 used in the step of forming the joint fixing part 240 has a female screw part 302, which can form a screw thread to be inserted into the inner circumferential surface of the screw fixing hole 210, It is preferable to use the tab member 300 formed at a predetermined interval (pitch) p and the discharge groove 304 formed in a spiral or straight line shape.

As shown in FIGS. 33 to 34, when the threaded holes in the screw fixing hole 210 are formed, the spacing of the female threaded portions 302 formed in the tab member 300 p is formed to be 3 to 6 times wider than the interval between the valleys.

According to the present invention, the coupling fixing part 240 having a protruding structure is spirally formed on the inner circumferential surface of the screw fixing hole 210, and the tab 302 is formed with a large interval so that the concrete is not broken. The anchor bolt 220 is inserted into the screw fixing hole 210 and the anchor bolt 220 is inserted into the screw fixing hole 210. When the anchor bolt 220 is fixed as the solution is hardened by inserting the chemical solution 230 into the screw fixing hole 210, The chemical solution 230 can be inserted into the fixing portion 240 to have a strong bonding force.

Accordingly, since the chemical solution 230 is inserted and hardened in the protrusion-shaped fixing part 240 of the protruding structure, the resistance to shock and impact is superior to that of the conventional chemical solution, and the concrete solution and the chemical solution There is no possibility that the peeling phenomenon or the like will come off.

In addition, the present invention is characterized in that the fixing force is excellent even when the structure subjected to frequent heavy vibration is fixed, and it is also excellent in the effect of preventing falling of the structure due to shrinkage and relaxation of the anchor portion due to four seasons.

Particularly, there is an advantage that the drawing strength and durability are excellent even in the attachment of an underwater structure (underwater bridge, dam).

The screw chemical anchor of the present invention has been confirmed through experiments that the maximum tensile load is increased, which is more than twice that of the existing chemical anchor. That is, the maximum tensile load was tested under the condition of anchor bolt M16, the anchor bolt installation depth 125mm, and the compressive strength of the concrete 25N / ㎟. As a result, the conventional set anchor was able to withstand a load of 42.0 kN and the existing chemical anchor 83.0 kN, and the screw chemical anchor of the present invention withstands a load of 196.0 kN.

Therefore, the present invention can fix and install heavy structures or facilities in plant (PLANT) construction, bridge construction, civil engineering work, steel foundation work, elevator construction, In other words, various structures such as a railway hanger, a fixed railway rail, a railway rail, and a railway rail are fixed securely and securely. .

Although the present invention has been fully described in connection with the preferred embodiments thereof with reference to the accompanying drawings, it is to be understood that the present invention is not limited thereto. It is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

100 - Bridge safety check frame 110 - Anchor fixing part
112 - Wall vertical bar 114 - Top fixture
116 - Lower fixture 120 -
122 - horizontal supporting bar 124 - reinforcing supporting bar
126 - bottom plate 130 - reinforcing portion
132 - Support piece 134 - Reinforcement bracket
140 - Safety Cabinet 142 - Railing Fixture
144 - Railing Vertical Bar 146 - Railing Barrier
150 - coupling part 200 - screw chemical anchor means
210 - Screw fixing hole 220 - Anchor bolt
230 - Chemical solution 240 - Coupling fixture

Claims (17)

A bridge safety inspection body installed to provide a passage through which a worker can move to a bridge pier installed at the bottom of the bridge using a prefabricated aluminum and a screw chemical anchor; And
And a screw chemical anchor means installed to securely and firmly fix the bridge safety inspection frame to the bridge pier,
Said screw chemical anchor means comprising:
A screw fixing hole formed at a predetermined depth in the bridge pier;
An anchor bolt installed to be fixedly inserted into the screw fixing hole and fixing the bridge safety inspection frame;
A chemical solution inserted into the screw fixing hole to be hardened so that the anchor bolt is fixed to the screw fixing hole; And
And a coupling and fixing unit spirally formed so as to have a protruding structure protruding outward at a predetermined interval on the inner circumferential surface of the screw fixing hole so that the chemical solution has a stronger coupling force with the screw fixing hole,
The bridge safety inspection frame includes:
An upper fixture fixed to an upper end of the wall vertical bar and fixed to the pier by the anchor bolt, a wall vertical bar set up at a predetermined interval on the wall surface of the pier to be fixed to the pier by the screw chemical anchor means, An anchor fixing part having a lower fixing part fixed to a lower end of the wall vertical bar and fixed to the pier by the anchor bolt;
A horizontal support bar installed at the lower part of the anchor fixing part and installed to protrude outwardly of the lower fixture so as to provide a passage for an operator to walk, a floor installed to be seated on the horizontal support bar and provided with a passage through which the pedestrian can move, A passage portion formed of a plate;
A reinforcing portion comprising a supporting piece provided on an upper portion of the horizontal supporting bar so as to reinforce a bottom portion of the passage portion, and a reinforcing pedestal fixed to the supporting piece to reinforce the bottom plate;
A railing fixture fixed to the outer end of the horizontal support bar so that the pedestrian can safely move through the passage portion reinforced by the reinforcement portion, and a railed vertical bar and a railed vertical bar installed upright so as to fix the lower end thereof to the railed fastener A safety rail part comprising a railing safety bar provided vertically at regular intervals between the rail vertical bars; And
And an engaging portion formed of a high tensile strength bolt and a nut which are installed to fix the engaging portions of the safety rail portion, the passage portion, and the anchor fixing portion, and a bridge inspecting facility using the prefabricated aluminum and screw chemical anchor The installation structure.
delete The method according to claim 1,
The upper fixture comprises:
A vertical bar upper inserting / fixing part formed to be able to insert an upper end of the wall vertical bar and coupled to penetrate the high tension bolt to fix the upper end of the wall vertical bar;
An upper fixed blade piece protruding from both sides of the vertical bar upper insertion and fixing member, and to which the anchor bolt can be installed; And
And an upper fastening piece protruded from an upper portion of the upper fixed blade and installed to be hooked on an upper portion of the bridge pier.
The method according to claim 1,
The lower fixture includes:
A vertical bar lower insertion fastener formed to be inserted into a lower end of the wall vertical bar and coupled to penetrate the high tension bolt to fix a lower end of the wall vertical bar;
A support bar insertion and fixing part protruding from the vertical bar lower insertion fixing part to be able to insert the horizontal support bar and being capable of fixing the one end of the horizontal support bar so as to penetrate the high tension bolt; And
And a lower fixing blade piece protruding from both sides of the vertical bar lower insertion fixing member so that the anchor bolt can be installed thereon.
The method according to claim 1,
Wherein the handrail fastener comprises:
A lower rail insertion and fixing fastener which is formed such that a lower end of the barrel vertical bar can be inserted therein and is capable of fixing the lower end of the barrel vertical bar by being coupled with the high tension bolt;
A support bar outer insertion and fixing member protruding from the lower rail insertion and fixing piece to be inserted into the horizontal support bar and being capable of fixing the outer end of the horizontal support bar so as to penetrate through the high tension bolt; And
And a support bar fixing anchors protruding from both sides of the lower rail insertion fitting member so that the outer ends of the horizontal support bars inserted into the support bar outer insertion fixing members are in close contact with each other. Installation structure of bridge inspection facilities.
The method according to claim 1,
Wherein the reinforcing portion comprises:
A T-shaped coupling groove is formed at a central portion of an upper end surface of the horizontal support bar,
The lower end of the support piece fitted to the T-shaped engagement groove is formed to correspond to the T-shaped engagement groove. The upper end of the support piece is formed with a T-shaped seat piece so that the reinforcement support plate is seated and supported, And the reinforcing support plate is mounted on the T-type seat so that the reinforcing support plate can be seated and supported.
The method according to claim 1,
Wherein the reinforcing portion comprises:
And a reinforcing support bar is fitted on a lower portion of the horizontal support bar,
Wherein a rail-shaped coupling groove is formed in a lower portion of the horizontal support bar, and a coupling-type engagement portion in the form of a rail is formed in the upper portion of the horizontal support bar to correspond to the coupling groove to be fitted into the coupling groove. And installation structure of bridge inspection facility using screw chemical anchor.
delete The method according to claim 1,
The engaging and fixing portion includes:
Wherein an end surface of the screw thread which is recessed in the inner circumferential surface of the screw fixing hole has a cross-sectional shape of either a trapezoidal shape, a square shape or a saw tooth shape,
Wherein the thread is formed at an interval larger than a depth at which the distance between the thread and the thread is along the inner circumferential surface of the screw fixing hole.
The method according to claim 1,
The engaging and fixing portion includes:
Wherein an end portion of the inner circumferential surface of the screw fixing hole is formed so as to have an inner diameter of about three times the inner diameter of the screw fixing hole, the installation structure of the bridge inspection facility using the prefabricated aluminum and the screw chemical anchor.
The method according to claim 1,
The engaging and fixing portion includes:
Wherein the first coupling unit and the second coupling unit are formed of a first coupling unit and a second coupling unit having a threaded double helical structure and the first coupling unit and the second coupling unit have different sizes so that different pulling strengths are applied. Installation structure of bridge inspection facility using prefabricated aluminum and screw chemical anchor.
The method according to claim 1,
The anchor bolt includes:
A body portion inserted into the screw fixing hole; And
And a spiral fixed protrusion protruding from an outer circumferential surface of the body part,
The fixing protrusion includes:
The anchor bolt is inserted into the anchor bolt so that the chemical solution is diffused to the outside of the anchor bolt by the inclined surface when the anchor bolt is inserted so that the chemical solution is inserted into the anchor bolt. A diffusing surface for diffusing the chemical solution; And
And a fixing surface formed to be inclined inwardly from the rear end of the diffusion surface to fix the chemical solution. The installation structure of the bridge inspection facility using the prefabricated aluminum and the screw chemical anchor.
The method according to claim 1,
The chemical solution comprises:
An outer pack of a vinyl material which receives and encapsulates a subject in which calcium carbonate, sand, and silica fillers are mixed with an unsaturated polyester resin, an epoxy resin, a polyurethane resin, and a phenol resin;
A first inner capsule of a glass material filled with powdery benzo peroxide (BPO) as a powder hardener which is embedded in the external pack and capable of rapidly curing the matrix; And
And a second internal capsule of glass filled with DMA (Dimethyl Aniline) as a curing accelerator which is built in the external pack and can rapidly cure the base material,
Wherein the rear end of the outer pack is formed with a conical recess for inserting the anchor bolt while guiding the center of the outer pack to the center of the outer pack.
A step of installing a screw chemical anchor to securely and firmly fix the bridge safety inspection body to the bridge pier so as to provide a passage through which a worker can move to a bridge pier installed at the bottom of the bridge using a prefabricated aluminum and screw chemical anchor and,
The step of installing the screw chemical anchor comprises:
Forming a screw fixing hole at a predetermined depth in the bridge pier;
Injecting a chemical solution into the screw fixing hole; And
And inserting an anchor bolt into the screw fixing hole so as to be fixed by the chemical solution,
The step of forming the screw fixing hole includes:
And is inserted into the screw fixing hole so as to have a protruding structure protruding outward at a predetermined interval on the inner circumferential surface of the screw fixing hole so as to improve the coupling force between the chemical solution hardened and the screw fixing hole, Further comprising forming a coupling fixture that is helically fixedly coupled,
The bridge safety inspection frame is fixed to the anchor bolt,
The bridge safety inspection frame includes:
An anchor fixing unit comprising a wall vertical wall standing up at a predetermined distance from a wall surface of the pier, an upper fixture fixing an upper end of the wall vertical bar, and a lower fixture fixing a lower end of the wall vertical bar;
A horizontal support bar installed to protrude outwardly of the lower fixture to provide a passage for the operator to walk on the lower portion of the anchor fixing unit, and a bottom plate secured to the horizontal support bar to provide a passage through which the pedestrian can move, part;
A reinforcing portion comprising a support piece provided on an upper portion of the horizontal support bar so as to reinforce a bottom portion of the passage portion, and a reinforcement pedestal fixed to the support piece to reinforce the bottom plate;
A handrail vertical bar fixedly installed on an outer end of the horizontal support bar so that the pedestrian can safely move the passage part reinforced by the reinforcement part, a handrail vertical bar installed upright to fix the lower end of the handrail fixture, A safety rail part comprising a railing safety bar installed to be vertically spaced to connect with the rail; And
And an engaging portion formed of a high tensile strength bolt and a nut, which are installed to fix the joint portions of the safety rail, the passage portion, and the anchor fixing portion,
The upper fixture comprises:
A vertical bar upper insertion fixing member and a vertical bar upper insertion bar fixing member, which are formed such that the upper end of the wall vertical bar can be inserted, And an upper fastening piece protruding from an upper portion of the upper fixed blade and capable of being hooked on an upper portion of the pier,
The lower fixture includes:
A vertical bar lower insertion and fixing piece formed to be able to insert the lower end of the vertical wall of the wall and coupled with the high tension bolt to penetrate the lower end of the wall vertical bar, A support bar insertion and fixing part formed to be able to insert a horizontal support bar into which the high tension bolt is inserted so as to be able to fix one end of the horizontal support bar and protruding to both sides of the vertical bar lower insertion fixture, And a lower fixed blade piece,
Wherein the handrail fastener comprises:
A lower rail inserted and fixed so as to allow the lower end of the barrel vertical bar to be inserted therethrough and the lower bar of the barrel vertical bar being fixedly coupled with the high tension bolt, And an outer end of a horizontal support bar inserted into the support bar outside insertion fastener is formed such that the high tension bolt can be inserted therethrough to fix the outer end of the horizontal support bar, And a support bar fixed blade piece protruded to both sides of the lower rail insertion and fixing member so as to be in close contact with each other,
Wherein the reinforcing portion comprises:
A T-shaped coupling groove is formed at a central portion of an upper end surface of the horizontal support bar so that a lower end of the supporting piece is fitted, and a lower end of the supporting piece fitted to the T-shaped coupling groove corresponds to the T- And the upper end of the supporting piece is formed so that a T-shaped seating piece is spaced apart at a predetermined interval so that the reinforcing supporting plate is seated and supported, and the reinforcing supporting plate is seated and supported on the T-
Wherein the upper fixture and the lower fixture are fixed to anchor bolts fixed to the bridge at the step of installing the screw chemical anchors, wherein the bridge fixtures are installed using the prefabricated aluminum and screw chemical anchors.
delete 15. The method of claim 14,
The step of forming the screw fixing hole includes:
Forming a hole in the concrete wall or the floor using a bit so that the anchor bolt can be installed;
Forming a coupling portion having a female screw shape on an inner circumferential surface of the hole by the tab member while inserting and rotating a tap member into the hole;
Separating the tab member from the coupling fixture by reversing rotation after forming the coupling fixture; And
And removing the internal dust of the screw fixing hole by repeating the internal fixation of the screw fixing hole at least twice by using a brush, an air pump and a blower in the hole formed with the coupling and fixing part. Installation method of inspection facilities.
15. The method of claim 14,
Wherein the tab member used in the step of forming the joint fixing portion comprises:
Wherein the female screw is formed at a predetermined interval (pitch) along the outer circumferential surface so as to form a screw thread to be inserted into the inner circumferential surface of the screw fixing hole,
And a tab member formed on the tab member and spaced apart by a distance of 3 to 6 times greater than the interval of the valleys so as to prevent breakage of the concrete when the screw thread formed in the screw fixing hole is formed, A method of installing bridge inspection facilities using prefabricated aluminum and screw chemical anchors, which form partitions.

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