KR100560247B1 - Cable tension introduction unit and the way that used temporary support blocks - Google Patents

Abstract

The present invention relates to a cable tension introduction device and a method using a temporary reaction steel, the object is to construct a temporary structure for joining the cable to the support end for a structural structure or a civil engineering structure, such as a bridge using a structural cable The present invention provides an apparatus and method for introducing tension of a cable by using steel rods and reaction steel.

The present invention is a first reaction force to be temporarily mounted on the jaw-shaped iron pinned to the support end, the second reaction force is temporarily mounted on the tensile steel bar is fixed by the jaw and the coupling steel, and the cylinder to be fixed to the tension bar A cable using a temporary reaction steel consisting of a third reaction steel temporarily mounted on the structural cable fixed to the type socket, and a temporary steel rod that is installed through the respective reaction steel at the same time to guide the introduction of the cable and simultaneously support the introduction of the cable. The technical introduction is related to a tension introducing device and a method thereof.

Reaction Steel, Temporary Steel Bars, Jaws, Cylindrical Sockets, Hole Jacks, Tension Bars, Joined Steels

Description

Cable tension introduction unit and method using temporary reaction hardware             

1 is an overall configuration diagram installed cable tension introduction device according to the present invention

Figure 2 is a front view and a schematic separation view to show the configuration of the reaction force applied to the present invention

3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h is a state diagram showing the step-by-step operating procedure according to the cable tension introduction construction procedure according to the present invention

<Description of the symbols for the main parts of the drawings>

(11): support end 12: cable

21: pin 22: nut

(23,23 '), (24,24'), (25,25 '): auxiliary nut

(31): jaw shaped hardware (33): bonded hardware

(35): tensile steel bar (37): cylindrical socket

(38): Nut for socket (39): Jack fixing nut

40: first reaction hardware 42: hole type jack

45: 2nd reaction steel (50): 3rd reaction steel

(51,51 '): reaction force member (52): coupling hole

(53): center groove (54,54 '): both grooves

(55,56): Temporary steel bar

The present invention relates to an apparatus and method for introducing cable tension using a temporary reaction steel, and more specifically, to a structural structure using a structural cable or a civil engineering structure, including bridges, by joining a structural cable to a support end to provide a temporary force The present invention relates to a cable tension introduction device and method using reaction steel.

In general, due to the development of civil engineering, the question of securing the stability of structures has been found to some extent. Furthermore, attention is focused on the economic, efficiency, and aesthetics related to construction, maintenance, and repair.

Along with the above phenomena, structural cables are widely used in building structures and civil structures. Structural cables, which have a very high strength compared to the cross-sectional area and at the same time, are structural members of materials with high economical efficiency, Its use is in the limelight.

However, unlike the other structural members, the structural cable can secure safety for supporting the structure only when the initial tension is introduced, and thus the step of introducing the tension of the cable takes an important step in the installation of the structural cable. Done.

In addition, the tension measurement after the introduction and installation of the structural cable has been actively performed, but the device and its working method for introducing and installing the initial structural cable to the support stage is not a systematic form.

The present invention is devised to solve the conventional problems as described above, the object of the present invention is to present a device and a work method for performing a systematic work according to the installation and installation of the structural cable to the support end, when the construction or construction The present invention provides an apparatus and a method for introducing tension of a structural cable by using a temporary reaction steel and temporary steel bars so that construction, maintenance, and repair can be easily performed with safety.

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

1 is an overall configuration showing the installation configuration of the cable tension introduction device according to the present invention for introducing and fixing the cable to the jaw-shaped hardware installed on the support end, Figure 2 is a front view for showing the configuration of the reaction force applied to the present invention 3A, 3B, 3C, 3D, 3E, 3F, 3G, and 3H show a state diagram showing a stepwise operation procedure according to a cable tension introduction construction procedure according to the present invention. In one thing,

The present invention is coupled to the support end 11, the pin 21 and the other side is screw-shaped jaw-like hardware 31, which is located in a line with the jaw-shaped hardware 31 and is spaced apart by a predetermined tension by itself The structural cable 12, the cylindrical socket 37 fixed to the end of the cable 12, the tensile steel bar 35 screwed with the cylindrical socket 37, and the tensile steel bar 35 A hole-type jack 42 installed and driven by an external pressure, and a tensile steel bar 35 is introduced close to the jaw-shaped hardware 31 by pressurization of the hole-type jack 42 to use both sides of the coupling steel 33 having female threads. In the cable tension introduction device to allow the tensile steel bar (35) and the jaw-shaped hardware 31 is screwed together at the same time;

Two temporary steel bars (55, 56) positioned parallel to both sides with respect to the linear direction in which the tensile steel bars (35) are introduced, and forming threads at both ends; A first reaction force (40) fastened to the jaw-shaped hardware (31) and fastened to temporary steel bars (55,56) and auxiliary nuts (23,23 ') positioned at both sides; Located in the rear of the hole-shaped jack 42, is installed on the tensile steel bar 35, the second reaction force steel fastening the temporary steel bars (55, 56) and the auxiliary nuts (24, 24 ') located on both sides ( 45); Located in the rear of the cylindrical socket 37, the third reaction force is installed on the cable 12, the temporary steel rods 55, 56 and the auxiliary nut (25, 25 ') located on both sides of the third reaction force ( 50).

The first reaction force steel 40 is composed of two reaction force members 51 and 51 'corresponding to each other, and has a plurality of hemispherical openings in the longitudinal direction on one surface corresponding to each other in close contact with the reaction force members 51 and 51'. In addition, each of the reaction force members (51, 51 ') is a small diameter bolt is fastened by a plurality of coupling holes 52 formed in the width direction is in close contact.

That is, when each reaction force member (51, 51 ') is fixed in close contact with the central portion to form a central groove 53 through which the jaw-shaped hardware 31 passes, two temporary steel bars (55, 56) on both sides thereof Both grooves 54 and 54 'are penetrated to facilitate installation and dismantling due to tightening or loosening of small diameter bolts.

In addition, the second and third reaction force (45, 50) has the same shape and configuration as the first reaction force 40, a tensile steel bar (35) as the center groove of the second reaction force (45), The central groove of the third reaction force 50 is installed side by side so as to pass through the cable 12, respectively.

One end of the temporary steel bars 55 and 56 is fastened by the auxiliary nuts 23 and 23 'with the first reaction force 40 inserted therein, and the second reaction force 45 and the other end are separated by a predetermined distance. The third reaction force steel 50 is engaged with the auxiliary nuts 24, 24 '/ 25 and 25', respectively, while being fitted.

That is, the first reaction force 40 is fastened to the auxiliary nut (23, 23 ') to the temporary steel bars (55, 56) to the front side, the nut 22 is fastened to the jaw-shaped steel 31 to the rear side, the second Reaction hardware 45 is fastened to the auxiliary nut (24, 24 ') to the temporary steel rods (55, 56) to the rear side, and is configured to be in close contact with the hole-type jack 42 of the front side by the jack fixing nut (39), The first and second reaction force hardware 40 and 45 maintain a fixed state during the tension introduction operation.

On the contrary, after the tensile steel bar 35 is tension-introduced by the hole-type jack 42 operated by an external pressure, that is, the third reaction steel 50 is pushed closer to the jaw-shaped steel 31. The third reaction force steel 50 installed in the cable 12 pulled in conjunction with the load according to the load re-tightens the auxiliary nuts 25 and 25 'fastened to the temporary steel bars 55 and 56 to form a cylindrical socket 37. The third reaction force 50 is supported and fixed to maintain the introduced state of tension.

The cylindrical socket 37 is generally connected to the cable and the socket by loosening the end of the twisted cable formed into the groove of the socket, and then injecting molten metal to harden the molten metal to connect the cable and the socket. Use

That is, the end of the cable 12 is fixed to the conical groove inward, and the socket nut 38 is installed on the outside, and the cylindrical socket 37 is formed at the rear in the tension-introduced state. It is made to be supported by the reaction force steel 50 of three.

The tensile steel bar 35 screwed with one side of the cylindrical socket 37 is composed of a steel bar having a predetermined length, both ends are screwed so that the other side is screwed with the coupling hardware 33 after the tension is introduced. .

The coupling iron 33 is formed on both sides of the female thread is removed after the tension introduction device according to the present invention is completed, the one side is screwed with the jaw-shaped hardware 31, the other side is a tensile steel bar 35 and screw coupling To maintain a fixed fastening state.

The present invention having the above-described configuration is to introduce and install the structural cable 12 which is located at a predetermined position by the tension force itself has a jaw-shaped hardware 31 coupled to the support end 11, its operation The order and method are as follows.

First, the jaw-shaped hardware 31 is installed through the nut 22 by installing the first reaction force steel 40 in which two reaction force members 51 and 51 'are bolted and coupled to each other so as to pass through the center groove 53. One side of the temporary steel bars (55, 56) is fitted into both grooves (54, 54 ') of the first reaction force (40) so as to be fixed by the auxiliary nuts (23, 23'),

The cylindrical socket 42 is installed at the end of the cable 12 positioned at a predetermined distance away from the jaw-shaped hardware 31, and the one side of the tensile steel bar 35 is screwed to the front side of the cylindrical socket 42. Steps,

At the rear of the cylindrical socket 42, the cable 12 penetrates into the central groove 53, and the temporary steel bars 55 and 56 are fitted into two reaction grooves 51 and 54 '. , 51 ') is installed by the auxiliary nuts 25 and 25' by installing the third reaction force steel 50 which is bolted and coupled;

The hole-shaped jack 42 operated by external pressure such as hydraulic pressure is installed on the tensile steel bar 35 in combination with the jack fixing nut 39, and the tensile steel bar 35 penetrates into the center groove 53 to the rear thereof. And an auxiliary nut by installing a second reaction force member 45 in which two reaction force members 51 and 51 'are bolted together so that the temporary steel rods 55 and 56 fit into both grooves 54 and 54'. (24,24 ') mounting,

The external force is applied to the hole-type jack 42 to introduce tension to the cable 12, and then Tightening the auxiliary nuts 25 and 25 'in order to closely contact the third reaction force steel 50 to the cylindrical socket 37 located at the front to maintain the introduced state;

After the tension introduction is completed, disassembling the second reaction force steel 45 and the tensile steel bar 35 and removing the hole-type jack 42,

Screwing one side of the disassembled tensile steel bar 35 and the coupling iron 33, and then screwing the tensile steel bar 35 to the cylindrical socket 37 again;

The first and third reaction steels 40 and 50 and the temporary steel bars 55 are installed after the other side of the coupling steel 33 screwed to the tensile steel bar 35 is co-threaded with the jaw-shaped steel 31. 56) to dismantle.

That is, after performing the above steps and finally the completion of the tension, the jaw-shaped hardware 31, the coupling iron 33, the tensile steel bar 35 and the pin 21 coupled to the support end 11, The cylindrical socket 37 and the cable 12 are fixedly installed side by side to maintain the tension introduced state.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

As described above, the present invention includes a device for introducing tension of a structural cable using a temporary reaction steel and a temporary steel rod that are easily detachable, so that a systematic operation can be performed by installing a structural cable at a support end. At the same time, there is an effect to facilitate the safety, maintenance and repair of work in the construction stage.

Claims (3)

A jaw-shaped steel pinned to the support end and screwed on the other side thereof, a structural cable positioned in a line with the jaw-shaped steel and spaced apart by a tension force thereof, and a cylindrical socket fixed to the end of the cable; And a tensile steel rod screwed to the cylindrical socket, a hole-type jack installed in the tensile steel rod and driven by an external pressure, and a tensile steel rod introduced into the jaw-shaped steel by pressurization of the hole-shaped jack, and both sides of which are female threads formed with female threads. In the cable tension introduction device for simultaneously screwing the tensile steel bar and the jaw-shaped hardware; Two temporary steel bars 55 and 56 positioned parallel to both sides with respect to the linear direction in which the tensile steel bars 35 are introduced, and forming a screw portion at both ends; The first reaction force (40) fastened to the jaw-shaped hardware (31) and fastened to the temporary steel bars (55,56) and auxiliary nuts (23, 23 ') located on both sides; The second reaction force steel 45 is disposed on the tensile steel bar 35 and positioned behind the hole-type jack 42, and the temporary steel bars 55 and 56 located at both sides and the auxiliary nuts 24 and 24 'are fastened to each other. )and, Located in the rear of the cylindrical socket 37, the third reaction force is installed on the cable 12, the temporary steel rods 55, 56 and the auxiliary nut (25, 25 ') located on both sides of the third reaction force ( 50) the cable using the temporary reaction hardware, characterized in that the load is supported and firmly supported by the reaction steel (40, 45, 50) and the temporary steel bar (55, 56) when the tension of the cable 12 is introduced Tension introduction device. The method of claim 1; The first, second, and third reaction steels 40, 45, and 50 are composed of two reaction force members 51, 51 'each corresponding to each other, and the reaction force members 51, 51' correspond to each other. Hemispherical openings in the longitudinal direction on one surface are in close contact with each other to form both grooves 54 and 54 'through which the central groove 53 and the temporary steel bars 55 and 56 pass, and a plurality of couplings formed in the width direction Cable tension introduction device using a temporary reaction hardware, characterized in that the detachable by bolting or loosening to the ball 52. A jaw-shaped steel pinned to the support end and screwed on the other side thereof, a structural cable positioned in a line with the jaw-shaped steel and spaced apart by a tension force thereof, and a cylindrical socket fixed to the end of the cable; And a tensile steel rod screwed to the cylindrical socket, a hole-type jack installed in the tensile steel rod and driven by an external pressure, and a tensile steel rod introduced into the jaw-shaped steel by pressurization of the hole-shaped jack, and both sides of which are female threads formed with female threads. In the cable tension introduction method for the simultaneous screw-coupling of the tensile steel bar and the jaw-shaped hardware using; Installing two temporary steel bars (55, 56) placed in parallel positions on both sides with respect to the linear direction in which the tensile steel bar (35) is introduced, and the first reaction force (40) on the jaw-shaped steel (31); , Located in the rear side of the cylindrical socket 37, the step of installing the second reaction force (50) to the cable 12 and the temporary steel rods (55, 56) by fastening the auxiliary nuts (25, 25 ') and , Located in the rear of the hole-type jack 42, and the second reaction force 45 is fastened to the tension steel bar 35 and the temporary steel bars (55, 56) to install the auxiliary nuts (24, 24 '), After the tension is introduced into the cable 12 as the external pressure is applied to the hole-type jack 42, the Retightening the auxiliary nuts 25 and 25 'of the third reaction force steel 50 to maintain the tension of the cable 12; Dismantling the second reaction force steel 45 and the tensile steel bar 35, and then removing the hole-type jack 42; Screwing one side of the dismantled tensile steel bar 35 and the coupling steel 33, and then screwing the other side of the tensile steel bar 35 back to the socket 37; After disassembling the first and third reaction steel (40, 50) and the temporary steel bar (55, 56) after screwing the other side of the coupling steel 33 and the jaw-shaped hardware (31) screwed to the tensile steel bar (35) Cable tension introduction method using a temporary reaction hardware, characterized in that consisting of steps.

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