WO2004063469A1 - Apparatus and method for constructing bridge moving - Google Patents

Apparatus and method for constructing bridge moving Download PDF

Info

Publication number
WO2004063469A1
WO2004063469A1 PCT/KR2004/000042 KR2004000042W WO2004063469A1 WO 2004063469 A1 WO2004063469 A1 WO 2004063469A1 KR 2004000042 W KR2004000042 W KR 2004000042W WO 2004063469 A1 WO2004063469 A1 WO 2004063469A1
Authority
WO
WIPO (PCT)
Prior art keywords
support
bridge
grounds
pair
rope
Prior art date
Application number
PCT/KR2004/000042
Other languages
French (fr)
Inventor
Bae-Ho Cho
Original Assignee
Hankookb & B
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to KR1020030002179A priority Critical patent/KR20040064518A/en
Priority to KR1020030002180A priority patent/KR100560841B1/en
Priority to KR10-2003-0002179 priority
Priority to KR10-2003-0002180 priority
Application filed by Hankookb & B filed Critical Hankookb & B
Publication of WO2004063469A1 publication Critical patent/WO2004063469A1/en

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00Methods or apparatus specially adapted for erecting or assembling bridges
    • E01D21/06Methods or apparatus specially adapted for erecting or assembling bridges by translational movement of the bridge or bridge sections

Abstract

The present invention provides a movable apparatus and method for constructing a bridge, which executes bridge constructing work regardless of a state of foundation ground, and by which the bridge is constructed on any region including a region with water, such as a glen or a river, thus reducing bridge constructing periods, and thus, costs.

Description

APPARATUS AND METHOD FOR CONSTRUCTING BRIDGE MOVING
Technical Field
The present invention relates, in general, to movable apparatuses and methods for constructing bridges and, more particularly, to a movable apparatus and method for constructing a bridge, which executes bridge constructing work regardless of a state of foundation ground, and by which the bridge is constructed on any region including a region with water, such as a glen or a river, thus reducing bridge constructing periods, and thus, costs.
Background Art
As shown in FIG. 11, to construct a bridge using a conventional bridge constructing technique between a pair of support grounds 110a and 110b spaced apart from each other by a predetermined distance, a plurality of constructing equipments and constructing methods are required.
That is, a plurality of columns 103 are disposed in a direction perpendicular to a longitudinal axis extending between the pair of support grounds 110a and 110b. Thereafter, a supporting block 104 is placed on the plurality of columns 103. By the above-mentioned bridge constructing process, a girder set 105 is constructed between the pair of support grounds 110a and 110b. Thereafter, a plurality of girder sets 105, formed by repeatedly executing the above-mentioned process of constructing the girder set 105, are arranged along the longitudinal axis to be spaced apart from each other at predetermined intervals between the pair of support grounds 110a and 110b.
After the plurality of girder sets 105 are arranged between the pair of support grounds 110a and 110b in a line, a plurality of bridge blocks 101, each having a length equal to a span defined between the pair of support grounds 110a and 110b and the plurality of girder sets 105, are respectively placed over desired spans between the pair of support grounds 110a and 110b and the plurality of girder sets 105.
At this time, each of the bridge blocks 101 is placed over the desired span by a pair of cranes 120a and 120b, as shown in FIG. 11. Each of the bridge blocks 101 is typically heavy.
Therefore, the pair of cranes 120a and 120b are used in the work of placing the bridge blocks 101 over the desired spans. First, both ends of each of the bridge blocks 101 are respectively suspended on a pair of cables which are respectively provided at the pair of cranes 120a and 120b. Thereafter, the bridge block 101 is placed over the desired span by operating the pair of cranes 120a and 120b. After the above-mentioned work using the pair of cranes 120a and 120b is repeatedly executed until every bridge block 101 are placed over the spans between the pair of support grounds 110a and 110b, an additional post work is executed to complete the bridge constructing work.
In case of constructing a bridge on a firm foundation ground between a pair of support grounds 110a and 110b, it is possible to use the conventional bridge constructing apparatus and method. However, in case of a soft foundation ground, it is very difficult to execute the conventional crane work. Thus, an additional work for improving the soft foundation ground must be executed prior to constructing the bridge. Therefore, the bridge constructing work using the conventional apparatus and method is disadvantageous in that the bridge constructing periods and costs are excessively increased.
Furthermore, when constructing a bridge using the conventional bridge constructing apparatus and method in a region with water, such as a glen or a river, the cranes cannot be placed on the foundation ground between the pair of support grounds. Therefore, the conventional apparatus and method is problematic in that the bridge constructing work is more difficult when constructing the bridge in the region with water. Disclosure of the Invention
Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a movable apparatus and method for constructing a bridge, which executes bridge constructing work regardless of a state of foundation ground, and by which the bridge is constructed on any region including a region with water, such as a glen or a river, thus reducing bridge constructing periods, and thus, costs.
In an aspect, the present invention provides a movable apparatus for constructing a bridge, by which a plurality of bridge blocks are placed on a plurality of girder sets arranged to be spaced apart from each other at predetermined intervals between a pair of support grounds. The bridge constructing apparatus includes a plurality of ropes drawn between the pair of support grounds in parallel with a longitudinal axis extending between the pair of support grounds, a bridge block transfer unit holding each of the bridge blocks and supported on the ropes to be moved in a direction parallel with or perpendicular to the longitudinal axis between the pair of support grounds, and a plurality of winding units respectively provided on the pair of support grounds to wind or unwind both ends of the plurality of ropes, thereby each of the bridge blocks is placed over a desired span between the pair of support grounds and the plurality of girder sets.
The bridge constructing apparatus may further include a pair of moving units respectively provided on the support grounds and each having a plurality of moving wheels provided on a lower end thereof, with the winding unit supported on each of the moving units.
The bridge constructing apparatus may further include a guide support frame provided in front of each of the moving units to prevent each of the moving units from being moved in undesired directions, and a support column vertically provided on the guide support frame to be moved along the guide support frame horizontally, with a guide wheel unit provided on an upper end of the support column to guide the ropes wound around or unwound from each of the winding units.
The support column may be a telescopic-type column, thus being controlled in a height thereof.
The guide wheel unit may include a support bracket provided on the upper end of the support column, and a plurality of guide wheels rotatably provided in the support bracket to respectively guide the plurality of ropes according to positions of the ropes.
The pair of moving units may be carried by a tractor trailer to desired positions on the support grounds in a state of being coupled to each other.
The plurality of ropes may include a main rope, a first sub-rope to move the bridge block transfer unit in the direction parallel with the longitudinal axis between the pair of support grounds, and a second sub-rope to vertically move a plurality of hangers which are coupled to the bridge block transfer unit to suspend each of the bridge blocks.
The plurality of winding units respectively provided on the pair of moving units of the support grounds may include a first winding unit provided on one of the pair of moving units and wound with the first and second sub-ropes. The first winding unit may include a first winder wound with the first sub-rope, and a second winder wound with the second sub-rope. The plurality of winding units may further include a second winding unit provided on a remaining one of the pair of moving units to be wound with the main rope.
The bridge block transfer unit may include a pair of bridge block transfer units hung on the main rope to be spaced apart from each other at a predetermined interval.
Each of the bride block transfer units may include a transfer unit body supported on the main rope to be moved along the main rope, a pair of clips provided in the transfer unit body to hold the first sub-rope, a trolley provided at a lower end of the transfer unit body, and a hoisting block connected to the trolley, with each of the hangers provided on a lower end of the hoisting block.
Each of the bridge block transfer units may further include a plurality of first and second rollers respectively provided in the trolley and the hoisting block to correspond to each other, and a plurality of third rollers provided around the first rollers in the trolley. In another aspect, the present invention provides a method for constructing a bridge,* in which a plurality of bridge blocks are placed on a plurality of girder sets arranged to be spaced apart from each other at predetermined intervals between first and second support grounds. The bridge constructing method includes a first step of drawing a plurality of ropes between the pair of support grounds in parallel with a longitudinal axis extending between the first and second support grounds, a second step of hanging a bridge block transfer unit, holding each of the bridge blocks, on the ropes to be moved in a direction parallel with or perpendicular to the longitudinal axis between the first and second support grounds, a third step of providing first and second winding units on the first and second support grounds respectively to wind or unwind both ends of the plurality of ropes, and a fourth step of placing each of the bridge blocks over a desired span between the first and second support grounds and the plurality of girder sets after transferring each of the bridge blocks over the desired span by rotating the first and second winding units.
The bridge constructing method may further include a step of respectively carrying first and second moving units, first and second guide support frames, and first and second support columns to desired positions ,on the first and second support grounds using a predetermined tractor trailer, prior to accomplishing the first through fourth steps; a step of fastening the first and second guide support frames on the first and second support grounds, respectively; a step of placing vertically the first and second support columns on the first and second guide support frames so that the first and second support columns move along the first and second guide support frames horizontally, respectively; and a step of coupling the first and second moving units to the first and second guide support frames, respectively. The plurality of ropes drawn in the first step of the above method may include a main rope, a first sub-rope to move the bridge block transfer unit in the direction parallel with the longitudinal axis between the first and second support grounds, and a second sub-rope to vertically move a plurality of hangers which are coupled to the bridge block transfer unit to suspend each of the bridge blocks.
The first and second winding units used in the above method may be respectively provided on the first and second moving units of the first and second support grounds, in which the first winding unit is provided on one of the first and second moving units and is wound with the first and second sub-ropes. The first winding unit may include a first winder wound with the first sub-rope, and a second winder wound with the second sub-rope. The second winding unit may be provided on a remaining one of the first and second moving units to be wound with the main rope.
Brief Description of the Drawings
The above and other objects, features and other advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a perspective view showing a process of constructing a bridge executed with a movable apparatus for constructing a bridge, according to an embodiment of the present invention; FIGS. 2A and 2B are enlarged views of units around first and second moving units of the bridge constructing apparatus of FIG. 1 which are provided on a pair of support grounds, respectively;
FIGS. 3A and 3B are partially enlarged perspective views of first and second guide wheel units of first and second support columns of FIGS. 2A and 2B, respectively;
FIG. 4 is a side view showing a state of each unit wound with a plurality of ropes of the bridge constructing apparatus of FIG. 1; FIG. 5 is an enlarged perspective view of a bridge block transfer unit of the bridge constructing apparatus of FIG. 1 around which the plurality of ropes are drawn;
FIG. 6 is a side view of a pair of bridge block transfer units of the apparatus of FIG. 1 which are supported on the plurality of ropes;
FIG. 7 is a perspective view of a tractor trailer carrying thereon a guide support frame of the bridge constructing apparatus of FIG. 1; FIG. 8 is a perspective view of a tractor trailer carrying thereon the first and second support columns of the bridge constructing apparatus of FIG. 1;
FIG. 9 is a perspective view of a tractor trailer to carrying thereon the first and second moving units of the bridge constructing apparatus of FIG. 1;
FIG. 10 is a block diagram showing a process of constructing the bridge executed with the bridge constructing apparatus of FIG. 1; and
FIG. 11 is a perspective view showing a process of constructing a bridge executed with a conventional bridge constructing apparatus .
Best Mode for Carrying Out the Invention
Reference should now be made to the drawings, in which the same reference numerals are used throughout the different drawings to designate the same or similar components .
In an embodiment of the present invention, to distinguish elements disposed in a right from elements disposed in a left in FIG. 1, the right elements and the left elements are respectively designated by the term "first" and the term "second". Furthermore, in the drawings, identification signs "a" and "b" are respectively given to the reference numerals of the right elements and the left elements.
FIG. 1 is a perspective view showing a process of constructing a bridge executed with a movable apparatus for constructing a bridge, according to an embodiment of the present invention. As shown in FIG. 1, the bridge constructing apparatus according to the embodiment of the present invention is used to construct the bridge between first and second support grounds 10a and 10b which are spaced apart from each other at a predetermined distance.
Referring to FIG. 1, the first and second support grounds 10a and 10b are spaced apart from each other by a predetermined distance. A plurality of preliminary structures for constructing the bridge are disposed between the first and second support grounds 10a and 10b. That is, after a plurality of columns 3 are disposed in a direction perpendicular to a longitudinal axis extending between the pair of support grounds 10a and 10b, a supporting block 4 is placed on the plurality of columns 3. Thus, a girder set 4 is constructed between the first and second support grounds 10a and 10b. Thereafter, a plurality of girder sets 5, formed by repeatedly executing the above-mentioned process of constructing the girder set 5, are arranged along the longitudinal axis to be spaced apart from each other at predetermined intervals between the pair of support grounds 10a and 10b.
After the above-mentioned process of arranging the plurality of girder sets 5 between the pair of support grounds 10a and 10b is completed, a plurality of bridge blocks 1, each having a length equal to a span defined between the pair of support grounds 10a and 10b and the plurality of girder sets 5, are placed over desired spans between the first and second support grounds 10a and 10b. In the present invention, the bridge blocks 1 are placed over the desired spans by a movable apparatus and method for constructing the bridge which is described as follows.
The bridge constructing method according to the present invention will be described herein below with reference to FIG. 10. As shown in FIG. 10, in the bridge constructing method, first and second moving units 20a and 20b on which first and second winding units 80a and 80b are respectively provided, first and second guide support frames 30a and 30b, and first and second support columns 40a and 40b are respectively carried to desired positions on the first and second support grounds 10a and 10b using a predetermined tractor trailer 83 at step S10.
Thereafter, the first and second guide support frames 30a and 30b are respectively fastened on the first and second support grounds 10a and 10b at step S20. The first and second support columns 40a and 40b are thereafter placed vertically on the first and second guide support frames 30a and 30b at step S30 so that the first and second support columns 40a and 40b move along the first and second guide support frames 30a and 30b horizontally, respectively. Thereafter, the first and second moving units 20a and 20b are, respectively coupled to the first and second guide support frames 30a and 30b at step S40.
Thereafter, a plurality of ropes 61, 62 and 63 are drawn between the first and second support grounds 10a and 10b at step S50 in parallel with the longitudinal axis extending between the first and second support grounds 10a and 10b. First and second bridge block transfer units 70a and 70b, holding each of the bridge blocks 1, are thereafter hung on the rope 61 at step S60 to be moved in the direction parallel with or perpendicular to the longitudinal axis between the first and second support grounds 10a and 10b.
Thereafter, the first and second winding units 80a and 80b are respectively provided on the first and second support grounds 10a and 10b at step S70 to wind or unwind both ends of the plurality of ropes 61, 62 and 63. Each of the bridge blocks 1 is thereafter placed over a desired span between the first and second support grounds 10a and 10b and the plurality of girder sets 5 after each of the bridge blocks 1 is transferred over the desired span by rotating the first and second winding units 80a and 80b at step S80.
The process of constructing the bridge through the method of the present invention will be described herein below in further detailed, with reference to FIGS. 1 through 9. As shown in FIGS. 1, 2A and 2B, the first and second moving units 20a and 20b are respectively provided at predetermined positions on the first and second support grounds 10a and 10b. The first and second moving units 20a and 20b respectively have a plurality of first and second moving wheels 21a and 21b on lower ends thereof, so that the moving units 20a and 20b are moved to desired positions.
The first winding unit 80a is provided on the first moving unit 20a. The first winding unit 80a includes a first winder 81 wound with the first sub-rope 62, and a second winder 82 wound with the second sub-rope 63. Referring to FIGS. 1 and 2B, the second winding unit 80b is provided on the second moving unit 20b to be wound with the main rope 61.
At this time, the first and second moving units 20a and 20b must be respectively fastened on the first and second support grounds 10a and 10b during the process of placing the bridge blocks 1 over the desired spans between the first and second support grounds 10a and 10b. Therefore, after the first and second moving units 20a and 20b are respectively provided on the first and second support grounds 10a and 10b, the first and second guide support frames 30a and 30b are respectively provided in front of the first and second moving units 20a and 20b to prevent the first and second moving units 20a and 20b from being moved in undesired directions.
The first and second guide support frames 30a and 30b respectively include first and second support plates 31a and 31b, and first and second vertical support bars 32a and 32b which are respectively provided on the first and second support plates 31a and 31b to be inclined upward to converge on upper ends thereof. The first and second guide support frames 30a and 30b respectively further include first and second horizontal guide bars 33a and 33b which are respectively provided on the first and second vertical support bars 32a and 32b to reinforce the first and second guide support frames 30a and 30b and to allow the first and second support columns 40a and 40b to slide in rail-type movements . The first and second support columns 40a and 40b are respectively provided vertically on the first and second guide support frames 30a and 30b. Each of the first and second support columns 40a and 40b is a telescopic-type column, thus being controlled in a height thereof, as shown in FIGS 3A and 3B. The first and second support columns 40a and 40b are respectively moved along the first and second horizontal guide bars 33a and 33b.
In the meantime, the first and second moving units 20a and 20b, the first and second guide support frames 30a and 30b, and the first and second support columns 40a and 40b are carried by the tractor trailer 83 to the desired positions on the first and second support grounds 10a and 10b, as shown in FIGS. 7 through 9.
FIG. 7 is a perspective view of a tractor trailer 83 carrying thereon the first and second guide support frames 30a and 30b. As shown in FIG. 7, the first and second guide support frames 30a and 30b are carried by the tractor trailer 83, prior to being respectively placed to the desired positions on the first and second support grounds 10a and 10b. After the first and second guide support frames 30a and 30b are placed on the first and second support grounds 10a and 10b, the first and second guide support frames 30a and 30b must be respectively fastened on the first and second support grounds 10a and 10b to firmly support the first and second support columns 40a and 40b on the first and second guide support frames 30a and 30b during the following main process (process of placing the bridge blocks 1 over the desired spans between the first and second support grounds 10a and 10b) . For this reason, additional anchor works are executed after respectively placing the first and second guide support frames 30a and 30b on the first and second support grounds 10a and 10b, but not described herein.
As shown in FIG. 8, the tractor trailer 83 carries the first and second support columns 40a and 40b. As shown in FIG. 9, the tractor trailer 83 carries the first and second moving units 20a and 20b in the same manner as that described for carrying the first and second guide support frames 30a and 30b in FIG. 7.
First and second guide wheel units 50a and 50b are respectively provided on upper ends of the first and second support columns 40a and 40b. The support columns 40a and 40b are respectively provided on the first and second guide support frames 30a and 30b to be moved along the first and second guide support frames 30a and 30b horizontally. Thus, the plurality of ropes, wound around or unwound from the first and second winding units 80a and 80b, are respectively guided by the first and second guide wheel units 50a and 50b.
The first and second guide wheel units 50a and 50b respectively include first and second support brackets 51a and 51b which are respectively provided on the upper ends of the first and second support columns 40a and 40b, and a plurality of first and second guide wheels 52a, 53a and 54a and 52b and 53b which are rotatably provided in the first and second support brackets 51a and 51b to guide the plurality of ropes, respectively. The first guide wheels 52a, 53a and 54a will be described herein below in further detailed. As shown in FIG. 3A, the first guide wheels 52a, 53a and 54a include six first main guide wheels 52a, two first dummy guide wheels 54a which are provided under the first main guide wheels 52a, and three first sub-guide wheels 53a which are provided around the first dummy guide wheels 54a. As shown in FIG. 3B, the second guide wheels 52b and 53b include six second main guide wheels 52b, and a second sub-guide wheel 53b which is provided around the second main guide wheels 52b.
In the meantime, the plurality of ropes are drawn between the first and second support grounds 10a and 10b to transfer each of the bridge blocks 1 over a desired span between the first and second support grounds 10a and 10b and the girder sets 5. The plurality of ropes are respectively wound around or unwound from the first and second winding units 80a and 80b while passing over the first and second guide wheel units 50a and 50b of the first and second support columns 40a and 40b. As shown in FIGS. 4 and 5, the plurality of ropes include a main rope 61, a horizontal sub-rope 62 to move the first and second bridge block transfer units 70a and 70b in the direction parallel with the longitudinal axis between the first and second support grounds 10a and 10b, and a vertical sub-rope 63 to vertically move the first and second bridge block transfer units 70a and 70b.
The main rope 61 repeatedly passes between the first and second support grounds 10a and 10b to form eight main rope sections, thus supporting the first and second bridge block transfer units 70a and 70b on the eight main rope sections. That is, an end of the main rope 61 extends from the second winding unit 80b to four of the six first main guide wheels 52a of the first guide wheels 52a, 53a and 54a. Thereafter, the end of the main rope 61 is again wound around the second winding unit 80b after passing over four of the six second main guide wheels 52b of the second guide wheels 52b and 53b. Thus, the main rope 61 forms four main rope sections at each of upper and lower portions between the first and second support grounds 10a and 10b, so that total eight main rope sections are formed between the first and second support grounds 10a and 10b, as shown in FIG. 5.
The first and second bridge block transfer units 70a and 70b are supported on the main rope 61 which is drawn between the first and second support grounds 10a and 10b, as described above. At this time, the second bridge block transfer unit 70b has the same construction as that of the first bridge block transfer unit 70a. Therefore, the construction of the first bridge block transfer unit 70a will be only described herein below, and an explanation of the construction of the second bridge block transfer unit 70b is thus not deemed necessary. As shown in FIG. 5, the first bridge block transfer unit 70a includes a first transfer unit body 71a. The first transfer unit body 71a is supported on the main rope 61, which forms the eight main rope sections between the first and second support grounds 10a and 10b, to be moved along the main rope 61. The first bridge block transfer unit 70a further includes a pair of first clips 79a which are provided in the first transfer unit body 71a to hold the first sub-rope 62. The first bridge block transfer unit 70a further includes a first trolley 72a which is provided at a lower end of the first transfer unit body 71a, and a first hoisting block 73a which is connected to the first trolley 72a, with a first hanger 78a provided on a lower end of the first hoisting block 73a.
A plurality of first upper and lower rollers 76a and 75a are respectively provided in the first trolley 72a and the first hoisting block 73a to correspond to each other. A pair of first sub-rollers 74a and 77a are provided around the first upper rollers 76a in the first trolley 72a to be wound with the vertical sub-rope 63. The drawn state of the horizontal sub-rope 62 with reference to the construction of the first and second bridge block transfer units 70a and 70b is as follows. Referring to FIGS. 3A, 3B, 4 and 5, an end of the horizontal sub-rope 62 extends from the first winder 81 of the first winding unit 80a of FIG. 2A, wound with the other end of the horizontal sub-rope 62, to the second guide wheel unit 50b of the second support column 40b via one of the three first sub-guide wheels 53a and one of two remaining first main guide wheels 52a of the first guide wheel unit 50a of the first support column 40a. Thereafter, the end of the horizontal sub-rope 62 is wound around one of two remaining second main guide wheels 52b of the second guide wheel unit 50b of second support column 40b. The horizontal sub-rope 62 is held at predetermined portions on both the pair of first clips 79a of the first bridge block transfer unit 70a and on the pair of second clips 79b of the second bridge block transfer unit 70b, after passing over one of the two first dummy guide wheels 54a and one of two remaining first sub-guide wheels 53a. Thereafter, the end of the horizontal sub-rope 62 is connected to the other end of the horizontal sub-rope 62 wound around the first winder 81. As described above, the horizontal sub-rope 62 defines a closed loop-shaped appearance. Therefore, the first and second bridge block transfer units 70a and 70b, holding the horizontal sub-rope 62, are moved by rotating the first winder 81 in the direction parallel with the longitudinal axis between the first and second support grounds 10a and 10b.
In the meantime, an end of the vertical sub-rope 63 extends from the second winder 82 of the first winding unit 80a of FIG. 2A to the first bridge block transfer unit 70a while passing over a remaining one of the first sub-guide wheels 53a and a remaining one the first dummy guide wheels 54a. Thereafter, the vertical sub-rope 63 is repeatedly wound around both the first upper and lower rollers 76a and 75a, after passing over one of the pair of first sub- rollers 74a and 77a. The end of the vertical sub-rope 63, thereafter, extends to the second bridge block transfer unit 70b through a remaining one of the pair of sub-rollers 74a and 77a. Thereafter, the second sub-rope 63 is wound around the second bridge block transfer unit 70b in the same manner as that in the first bridge block transfer unit 70a. The end of the second sub-rope 63 is thereafter tied to a predetermined portion of the second guide wheel unit 50b of the second support column 40b.
Therefore, when the second winder 82 is rotated to wind or unwind the vertical sub-rope 63, the vertical sub- rope 63 is wound around or unwound from the upper and lower rollers 76a and 75a. Thus, the first and second hangers 78a and 78b to suspend the bridge blocks 1 are vertically moved on the first and second bridge block transfer units 70a and 70b.
As described above, the first and second bridge block transfer units 70a and 70b are moved by rotating the first winder 81 in the direction parallel with the longitudinal axis between the first and second support grounds 10a and 10b. The first and second hangers 78a and 78b are vertically moved by rotating the second winder 82. However, as shown in FIG. 1, each of the bridge blocks 1 must be moved in the direction perpendicular to the longitudinal axis between the first and second support grounds 10a and 10b. For this reason, the first and second support columns 40a and 40b respectively slide along the first and second horizontal guide bars 33a and 33b of the first and second guide support frames 30a and 30b.
In a brief description, the first and second moving units 20a and 20b, the first and second guide support frames 30a and 30b, and the first and second support columns 40a and 40b are carried to desired positions on the first and second support grounds 10a and 10b using the tractor trailer 83.
Thereafter, the first and second guide support frames 30a and 30b are respectively fastened on the first and second support grounds 10a and 10b through the additional anchor works. The first and second support columns 40a and 40b are thereafter placed vertically on the first and second guide support frames 30a and 30b, respectively. At this time, the first and second support columns 40a and 40b are mounted on the first and second support frames 30a and 30b to be moved along the first and second guide support frames 30a and 30b horizontally, respectively.
Thereafter, the first and second moving units 20a and 20b are respectively coupled to the first and second guide support frames 30a and 30b. The end of the main rope 61, thereafter, extends from the second winding unit 80b to four of the six first main guide wheels 52a of the first guide wheels 52a, 53a and 54a. Thereafter, the end of the main rope 61 is again wound around the second winding unit 80b after passing over four of the six second main guide wheels 52b of the second guide wheels 52a and 53b. Thus, the eight main rope sections are formed between the first and second support grounds 10a and 10b. The first and second bridge block transfer units 70a and 70b are supported on the main rope 61 with the eight main rope sections.
Thereafter, the horizontal sub-rope 62 is drawn between the first and second support grounds 10a and 10b. That is, the end of the horizontal sub-rope 62 extends from the first winder 81, wound with the other end of the horizontal sub-rope 62, to the second guide wheel unit 50b of the second support column 40b while passing over one of the three first sub-guide wheels 53a and one of two remaining first main guide wheels 52a of the first guide wheel unit 50a of the first support column 40a.
Thereafter, the end of the horizontal sub-rope 62 is wound around one of two remaining second main guide wheels 52b. The horizontal sub-rope 62 is thereafter held at predetermined portions on both the pair of first clips 79a of the first bridge block transfer unit 70a and on the pair of second clips 79b of the second bridge block transfer unit 70b. Thereafter, the end of the horizontal sub-rope 62 further extends to the other end of the horizontal sub-rope 62 wound around the first winder 81 while passing over one of the two first dummy guide wheels 54a and one of two remaining first sub-guide wheels 53a.
In the meantime, the end of the vertical sub-rope 63 extends from the second winder 82 of the first winding unit 80a to the first bridge block transfer unit 70a while passing over a remaining one of the first sub-guide wheels 53a and a remaining one of the first dummy guide wheels 54a.
Thereafter, the vertical sub-rope 63 is repeatedly wound around both the first upper and lower rollers 76a and 75a, after passing over one of the pair of first sub- rollers 74a and 77a. The end of the vertical sub-rope 63, thereafter, (-extends to the second bridge block transfer unit 70b through a remaining one of the pair of first sub- rollers 74a and 77a. Thereafter, the vertical sub-rope 63 is wound around the second bridge block transfer unit 70b in the same manner as that in the first bridge block transfer unit 70a. The end of the vertical sub-rope 63 is thereafter tied to the predetermined portion of the second guide wheel unit 50b of the second support column 40b.
As described above, the first and second bridge block transfer units 70a and 70b are hung on the main rope 61. Both the horizontal sub-rope 62 and the vertical sub-rope 63 are drawn around the first and second bridge block transfer units 70a and 70b and the remaining elements between the first and second support grounds 10a and 10b. Thereafter, the first and second hangers 78a and 78b are respectively coupled to the first and second bridge block transfer units 70a and 70b. Each of the bridge blocks 1 is suspended on both the first and second hangers 78a and 78b. Thus, the bridge constructing apparatus according to the present invention becomes the state of FIG. 1. In the state of FIG. 1, when the first winder 81 and second winder 82 are respectively rotated to wind or unwind the horizontal and vertical sub-ropes 62 and 63, the first and second bridge block transfer units 70a and 70b are moved in the direction parallel with the longitudinal axis between the first and second support grounds 10a and 10b, and the first and second hangers 78a and 78b with the bridge block 1 are vertically moved on the first and second bridge block transfer units 70a and 70b. By the above- mentioned movements of the bridge constructing apparatus of the present invention, each of the bridge blocks 1 is placed over the desired span between the first and second support grounds 10a and 10b and the plurality of girder sets 5.
When the bridge block 1 must be moved in the direction perpendicular to the longitudinal axis between the first and second support grounds 10a and 10b, the first and second support columns 40a and 40b are respectively horizontally moved along the first and second horizontal guide bars 33a and 33b of the first and second guide support frames 30a and 30b to achieve the desirable movement of the bridge block 1.
As described above, in the bridge constructing apparatus according to the present invention, the bridge constructing work are executed on the first and second support grounds 10a and 10b to place the bridge blocks 1 over the desired spans between the plurality of girder sets 5. Therefore, the bridge constructing apparatus of the present invention efficiently executes the bridge constructing work regardless of a state of foundation ground, and is possible to construct the bridge on any region including a region with water, such as a glen or a river, thus reducing bridge constructing periods, and thus, costs.
Although the preferred embodiment of the present invention has been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible. That is, in the preferred embodiment of the present invention, the first and second support columns 40a and 40b are the telescopic-type columns, thus being controlled in the height thereof. However, the first and second support columns 40a and 40b of the bridge constructing apparatus of the present invention may be folding-type columns with joints to control the height thereof.
Industrial Applicability
As described above, the present invention provides a movable apparatus and method for constructing a bridge, which executes bridge constructing work regardless of a state of foundation ground, and by which the bridge is constructed on any region including a region with water, such as a glen or a river, thus reducing bridge constructing periods, and thus, costs.

Claims

Claims
1. A movable apparatus for constructing a bridge, by which a plurality of bridge blocks are placed on a plurality of girder sets arranged to be spaced apart from each other at predetermined intervals between a pair of support grounds, the apparatus comprising: a plurality of ropes drawn between the pair of support grounds in parallel with a longitudinal axis extending between the pair of support grounds; a bridge block transfer unit holding each of the bridge blocks and supported on the ropes to be moved in a direction parallel with or perpendicular to the longitudinal axis between the pair of support grounds; and a plurality of winding units respectively provided on the pair of support grounds to wind or unwind both ends of the plurality of ropes, thereby each of the bridge blocks is placed over a desired span between the pair of support grounds and the plurality of girder sets.
2. The apparatus according to claim 1, further comprising: a pair of moving units respectively provided on the support grounds and each having a plurality of moving wheels provided on a lower end thereof, with the winding unit supported on each of the moving units .
3. The apparatus according to claim 2, further comprising: a guide support frame provided in front of each of the moving units to prevent each of the moving units from being moved in undesired directions; and a support column vertically provided on the guide support frame to be moved along the guide support frame horizontally, with a guide wheel unit provided on an upper end of the support column to guide the ropes wound around or unwound from each of the winding units.
4. The apparatus according to claim 3, wherein the support column is a telescopic-type column, thus being controlled in a height thereof.
5. The apparatus according to claim 3, wherein the guide wheel unit comprises: a support bracket provided on the upper end of the support column; and a plurality of guide wheels rotatably provided in the support bracket to respectively guide the plurality of ropes according to positions of the ropes.
6. The apparatus according to claim 2 or 3, wherein the pair of moving units are carried by a predetermined tractor trailer to desired positions on the support grounds in a state of being coupled to each other.
7. The apparatus according to claim 1, wherein the plurality of ropes comprise: a main rope; a first sub-rope to move the bridge block transfer unit in the direction parallel with the longitudinal axis between the pair of support grounds; and a second sub-rope to vertically move a plurality of hangers which are coupled to the bridge block transfer unit to suspend each of the bridge blocks.
8. The apparatus according to claim 7, wherein the plurality of winding units respectively provided on the pair of moving units of the support grounds comprise: a first winding unit provided on one of the pair of moving units and wound with "he first and second sub-ropes, the first winding unit comprising: a first winder wound with the first sub-rope; and a second winder wound with the second sub-rope; and a second winding unit provided on a remaining one of the pair of moving units to be wound with the main rope.
9. The apparatus according to claim 8, wherein the bridge block transfer unit comprises a pair of bridge block transfer units hung on the main rope to be spaced apart from each other at a predetermined interval, each of the bride block transfer units comprising: a transfer unit body supported on the main rope to be moved along the main rope; a pair of clips provided in the transfer unit body to hold the first sub-rope; a trolley provided at a lower end of the transfer unit body; and a hoisting block connected to the trolley, with each of the hangers provided on a lower end of the hoisting block.
10. The apparatus according to claim 9, wherein each of the bridge block transfer units further comprises: a plurality of first and second rollers respectively provided in the trolley and the hoisting block to correspond to each other; and a plurality of third rollers provided around the first rollers in the trolley.
11. A method for constructing a bridge, in which a plurality of bridge blocks are placed on a plurality of girder sets arranged to be spaced apart from each other at predetermined intervals between first and second support grounds, the method comprising: a first step of drawing a plurality of ropes between the pair of support grounds in parallel with a longitudinal axis extending between the first and second support grounds ; a second step of hanging a bridge block transfer unit, holding each of the bridge blocks, on the ropes to be moved in a direction parallel with or perpendicular to the longitudinal axis between the first and second support grounds; a third step of providing first and second winding units on the first and second support grounds respectively to wir.d or unwind both ends of the plurality of ropes; and a fourth step of placing each of the bridge blocks over a desired span between the first and second support grounds and the plurality of girder sets after transferring each cf the bridge blocks over the desired span by rotating the first and second winding units.
12. The method according to claim 11, further comprising: a step of respectively carrying first and second moving units, first and second guide support frames, and first and second support columns to desired positions on the first and second support grounds using ε predetermined tractor trailer, prior to accomplishing the first through fourth steps; a step of fastening the first and second guide support frames on the first and second support grounds, respectively; a step of placing vertically the first and second support columns on the first and second guide support frames so that the first and second support columns move along the first and second guide support frames horizontally, respectively; and a step of coupling the first and second moving units to the first and second guide support frames, respectively.
13. The method according to claim 11, wherein the plurality of ropes drawn in the first step comprise: a main rope; a first sub-rope to move the bridge block transfer unit in the direction parallel with the longitudinal axis between the first and second support grounds; and a second sub-rope to vertically move a plurality of hangers which are coupled to the bridge block transfer unit to suspend each of the bridge blocks.
14. The method according to any one of claims 11 through 13, wherein the first and second winding units are respectively provided on the first and second moving units of the first and second support grounds, in which: the first winding unit is provided on one of the first and second moving units and is wound with the first and second sub-ropes, the first winding unit comprising a first winder wound with the first sub-rope; and a second winder wound with the second sub-rope; and the second winding unit is provided on a remaining one of che first and second moving units to be wound with the main rope.
PCT/KR2004/000042 2003-01-13 2004-01-13 Apparatus and method for constructing bridge moving WO2004063469A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1020030002179A KR20040064518A (en) 2003-01-13 2003-01-13 Apparatus for constructing bridge moving
KR1020030002180A KR100560841B1 (en) 2003-01-13 2003-01-13 Apparatus for constructing bridge moving
KR10-2003-0002179 2003-01-13
KR10-2003-0002180 2003-01-13

Publications (1)

Publication Number Publication Date
WO2004063469A1 true WO2004063469A1 (en) 2004-07-29

Family

ID=32716471

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2004/000042 WO2004063469A1 (en) 2003-01-13 2004-01-13 Apparatus and method for constructing bridge moving

Country Status (1)

Country Link
WO (1) WO2004063469A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108358065A (en) * 2018-01-18 2018-08-03 重庆溢权科技发展有限公司 Bridge rotating Big Dipper localization method based on PLC

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4630798A (en) * 1981-06-19 1986-12-23 Philipp Holzmann Aktiengesellschaft Method and device for erecting building structures such as bridges, using pre-fabricated concrete beams
JPH08144224A (en) * 1994-11-18 1996-06-04 Kajima Corp Erection method of bridge
JPH1082020A (en) * 1997-09-10 1998-03-31 Mitsui Miike Mach Co Ltd Precast block erection device
US5940916A (en) * 1997-09-03 1999-08-24 J. Muller International Bridge span-by-span construction apparatus and method
KR20010070666A (en) * 2001-05-30 2001-07-27 유춘종 A movable working pulley
KR200236290Y1 (en) * 2001-03-22 2001-10-08 주식회사한국삭도 Cable crane

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4630798A (en) * 1981-06-19 1986-12-23 Philipp Holzmann Aktiengesellschaft Method and device for erecting building structures such as bridges, using pre-fabricated concrete beams
JPH08144224A (en) * 1994-11-18 1996-06-04 Kajima Corp Erection method of bridge
US5940916A (en) * 1997-09-03 1999-08-24 J. Muller International Bridge span-by-span construction apparatus and method
JPH1082020A (en) * 1997-09-10 1998-03-31 Mitsui Miike Mach Co Ltd Precast block erection device
KR200236290Y1 (en) * 2001-03-22 2001-10-08 주식회사한국삭도 Cable crane
KR20010070666A (en) * 2001-05-30 2001-07-27 유춘종 A movable working pulley

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108358065A (en) * 2018-01-18 2018-08-03 重庆溢权科技发展有限公司 Bridge rotating Big Dipper localization method based on PLC

Similar Documents

Publication Publication Date Title
CN104278637A (en) No-catwalk cableway erecting method for main cable strands of suspension bridge
JP2004346652A (en) Structure of elevated steel tower and construction method
JP2894226B2 (en) Bridge construction method
JPH06299517A (en) Method and equipment for constructing diagonal cable of multi-strand
WO2004063469A1 (en) Apparatus and method for constructing bridge moving
EP0617171B1 (en) Method for erecting a suspension bridge and device therefor
JP2005023623A (en) Suspension device for suspension scaffold for bridge and suspension scaffold assembling construction method using this device
KR100560841B1 (en) Apparatus for constructing bridge moving
CN108894496A (en) A kind of over-the-counter construction method of Large-span Truss String Structure beam
CN210827120U (en) Tensioning operation platform supported by temporary anchoring platform based on prefabricated section box girder
JP2768282B2 (en) Bridge construction method
JP2005146772A (en) Roof supporting structural body unit, large space roof structure and construction methods of them
CN110948676A (en) Prefab steel tensioning device
KR200312109Y1 (en) Apparatus for constructing bridge moving
CN206784172U (en) Overpass anti-collision wall formwork hoisting conveyance
JP2720339B2 (en) Cable laying method
KR20040064518A (en) Apparatus for constructing bridge moving
KR20110116298A (en) Rotating-up building roof structure using keel truss and rotating-up building method using keel truss
CN212641201U (en) A device is held in palm temporarily to existing optical cable for road reconstruction extension construction
JP2697807B2 (en) Reinforcing cage assembly / building equipment
US5954155A (en) Bridge containment system
JPH11147690A (en) Low head space reinforcing bar building-in device
JP2004100258A (en) Traveling device and traveling method
JP2567560B2 (en) Bridge construction method using precast girders
JPH11199173A (en) Long structure construction method and lifting beam used in this method

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established
122 Ep: pct application non-entry in european phase