KR101632960B1 - Temporary bridge having the structure system combining girder with decking pannel and prestressing the supporting point and method for constructing thereof - Google Patents

Temporary bridge having the structure system combining girder with decking pannel and prestressing the supporting point and method for constructing thereof Download PDF

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Publication number
KR101632960B1
KR101632960B1 KR1020150122453A KR20150122453A KR101632960B1 KR 101632960 B1 KR101632960 B1 KR 101632960B1 KR 1020150122453 A KR1020150122453 A KR 1020150122453A KR 20150122453 A KR20150122453 A KR 20150122453A KR 101632960 B1 KR101632960 B1 KR 101632960B1
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South Korea
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temporary
mold
hypothetical
vertical
vent
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KR1020150122453A
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Korean (ko)
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박상우
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주식회사 하이브리텍
박상우
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D15/00—Movable or portable bridges; Floating bridges
    • E01D15/12—Portable or sectional bridges
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C9/00—Special pavings; Pavings for special parts of roads or airfields
    • E01C9/08—Temporary pavings
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/005—Piers, trestles, bearings, expansion joints or parapets specially adapted for portable or sectional bridges
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

The present invention relates to a temporary bridge having an integrated structure of a temporary girder and a decking panel and a prestressing structure for a point part and a construction method thereof. The temporary bridge comprises: multiple temporary vents which are arranged to be separated from each other and have an enlarged top width; multiple temporary girders which are placed on the temporary vents; support parts which are formed between the temporary vents and the temporary girders; vertical prestressing steel members which vertically tense and fix the point parts of the temporary girders to the temporary vents; and multiple decking panels which are formed on the top of the temporary girders. Thus, the present invention enables the long-span construction of the temporary bridge as the cross-section efficiency of the temporary girders is improved, and improves the bearing capacity of the temporary girders.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a temporary bridge having a temporary structure, a single-piece structure and a torsional tension structure, and a construction method thereof,

This embodiment relates to a hypothetical bridge having a temporary mold, a single-piece structure with a single plate and a torsional tension structure, and a construction method thereof.

When constructing a new bridges, repairing existing bridges or roads, constructing new bridges, or constructing work bridges such as transversal overpasses and port facilities, temporary bridges should be constructed so that vehicles or people can pass.

Conventionally, a hypothetical bridge is installed by installing a hypothetical vent, installing a hypothetical mold on the upper side of the hypothetical vent, and then installing a flat plate on the upper side of the hypothetical mold. The hypothetical bridge is used for repairing, After the construction was completed, it was dismantled.

However, in the above conventional technique, the bending moment is largely generated due to the self weight of the temporary mold provided on the upper side of the temporary vent, the fixed load of the base plate provided on the upper side of the temporary mold, There is a problem that it is difficult to make the bridge of the hypothetical bridge as the long bridge. Particularly, when the girder of this bridge having a very large load is installed, the large crane equipment for carrying it also acts as a load, so that the sagging becomes very large, and it is very difficult to shorten the length of the temporary mold. There are limitations in applying products. In addition, the prior art has a disadvantage in that the laminating plate acts as a fixed load, and the live load is only transferred to the laminating mold, which is structurally disadvantageous to the laminating mold of the laminating bridge. As the laminating plate is simply mounted on the laminating mold, And noise are large, there are many complaints of the vehicle driver and the nearby residents.

Patent 1: Korean Patent No. 10-0579597 Patent 2: Korean Patent No. 10-0911451 Patent 3: Korean Patent No. 10-1055856

In order to solve the above problems, the present invention is characterized in that the present invention has a supporting portion between a provisional vent expanded in the width of the upper end portion and a provisional mold placed on the provisional vent, and the fulcrum portion of the provisional mold is made of a vertical PS steel As a result of the negative moment at mid-span of the span of the span, the cross-sectional efficiency of the span of the span is improved, so that the long span of the span can be made, the load-bearing capacity of the span can be increased, the construction period shortened, And a method of constructing the same, and a method of constructing the same.

In addition, a stud bolt provided on an upper flange of a casting mold is inserted into a bolt hole formed in a hollow plate at the time of coupling the hollow casting mold and a hollow plate provided on the upper side of the hollow casting mold, and a wedge is inserted between the hollow plate and the stud bolt A temporary bridge having an integrated structure of a flat plate and a torsional tension structure which minimizes noise and vibration due to traveling of a vehicle and the like, And to provide a method of construction thereof.

The stud bolt provided in the upper flange of the temporary mold is inserted into the bolt hole formed in the hollow plate at the time of coupling the temporary mold and the hollow plate provided on the upper side of the temporary mold, and the mortar is filled between the hollow plate and the stud bolt A disk steel plate is provided on the upper surface of the mortar and the nut is fastened to integrally join the temporary mold and the hollow plate so that the hollow plate acts as a structural member and the noise and vibration due to the running of the vehicle are minimized, The present invention provides a hypothetical bridge having a torsional tension structure and a construction method thereof.

Further, since the supporting part is formed of the hinge having the fixing wedge, it is possible to easily fix the temporary mold on the supporting part and to provide the supporting part with the hypothetical mold capable of flexibly coping with the deformation of the temporary mold, Bridges and methods of construction thereof.

In addition, both end portions in the throttling direction of the flat plate are formed in a L-shape and a B-shape, or the vertical planes in the L-shape and the B-shape are inclined so as to prevent mutual departure when the laminated plates are compressed with each other, And a torsion bridge having a torsional tension structure and a construction method thereof.

Also, the present invention is to provide a hypothetical bridge having a significantly increased safety by combining a lower flange, a triangular support, and a hypothetical vent of a hypothetical mold with a fastening bolt, and a construction method thereof.

A hypothetical bridge according to an exemplary embodiment of the present invention includes a plurality of hypothetical vents having a wide upper end and spaced apart from each other; A plurality of temporary molds placed on the hypothetical vent; A support portion provided between the hypothetical vent and the temporary mold; A vertical PS steel torsionally fixing the fulcrum portion of the temporary mold in a direction perpendicular to the hypothetical vent; A plurality of flat plates provided on the upper side of the mold; And a plurality of stud bolts are provided on the upper flange of the mold, and the upper bolt is inserted into the upper bolt, and the upper bolt is inserted into the upper bolt, And a plurality of wedges divided between the stud bolts on the mold and the bolt holes of the hollow plate are inserted and fastened with a nut so that the hollow plate and the hollow mold are integrally joined to each other, And a negative moment is generated in a central portion of the span by the vertical PS steel which is tensed to the fulcrum portion, thereby improving the sectional efficiency of the temporary mold.

Further, the plurality of divided wedges may further include a L-shaped flange provided on the upper side, and the L-shaped flange may be used as a latching groove of the drawing device at the time of removal of the wedge.

Further, the plurality of divided wedges may have recesses and protrusions on the mutual contact surfaces, and the recesses and the protrusions may be tightly fitted to each other.

In addition, a screw hole may be formed on the upper surface of the plurality of divided wedges, and the screw hole may be used as a coupling hole of the bolt when the wedge is removed.

Further, the entire cross section of the plurality of divided wedges may be circular or rectangular.

In addition, the upper bolt hole of the upper plate may be formed as a part having the same diameter, the lower part of the wedge may be cut, and the upper part may be formed as a part having the same diameter.

A plurality of hypothetical vents each having a width at an upper end and spaced apart from each other; A plurality of temporary molds placed on the hypothetical vent; A support portion provided between the hypothetical vent and the temporary mold; A vertical PS steel torsionally fixing the fulcrum portion of the temporary mold in a direction perpendicular to the hypothetical vent; A plurality of flat plates provided on the upper side of the mold; And a plurality of stud bolts are provided on an upper flange of the mold, and the bolt hole into which the stud bolt is inserted is inserted into the upper flange of the mold, Wherein mortar is filled between the stud bolt on the temporary mold and the bolt hole of the hollow plate, the disk steel plate is installed on the upper surface of the mortar, and then the nut is fastened to integrally join the hollow plate and the hollow mold, And the temporary mold has a negative moment generated at the center of the span by the vertical PS steel tensed to the fulcrum portion, thereby improving the sectional efficiency of the temporary mold.

A rubber ring is provided on the lower side of the stud bolt to prevent the leakage of the mortar. A support member is provided on the lower side of the disk steel plate to reach an end of the bolt hole, and a release member is provided on the upper side thereof. have.

A plurality of hypothetical vents each having a width at an upper end and spaced apart from each other; A plurality of temporary molds placed on the hypothetical vent; A support portion provided between the hypothetical vent and the temporary mold; A vertical PS steel torsionally fixing the fulcrum portion of the temporary mold in a direction perpendicular to the hypothetical vent; A plurality of flat plates provided on the upper side of the mold; And a plurality of stud bolts provided on the upper side of the hollow mold to serve as a structural member, the support unit comprising: an upper plate provided below the hollow mold; And a hinge provided between the upper plate and the lower plate, the hinge comprising: an upper vertical member coupled to the upper plate; a lower vertical member coupled to the lower plate; And a fixed wedge for preventing the rotation of the upper vertical member and the lower vertical member, wherein the fixed wedge has a U-shaped shape and has both ends connected to the upper vertical member and the lower vertical member, Is inserted into a cutout groove or hole formed in the member, and has a stretchable portion at its center portion, The stretchable and contractible part holds the upper plate and the lower plate in an equilibrium state when no external force acts on the hinge, receives a deformation when an external force acts on the upper and lower plates, A negative moment may be generated at the central portion of the span, thereby improving the sectional efficiency of the temporary mold.

The stretchable and contractible portion may be a spring or a tooth.

The control member may be coupled to the elastic member to control elongation and shrinkage. The elastic member may be broken, dropped, or bent when a force exceeding a predetermined force is applied to the elastic member, . ≪ / RTI >

A plurality of hypothetical vents each having a width at an upper end and spaced apart from each other; A plurality of temporary molds placed on the hypothetical vent; A support portion provided between the hypothetical vent and the temporary mold; A vertical PS steel torsionally fixing the fulcrum portion of the temporary mold in a direction perpendicular to the hypothetical vent; A plurality of flat plates provided on the upper side of the mold; And a plurality of stud bolts provided on the upper side of the hollow mold to serve as a structural member, wherein the hollow plate has one end in the throttling direction and one end in the form of a letter, When the flat plate is installed continuously, the L-shape and the B-shape are overlapped with each other on the b-shape and the b-shape of adjacent other lobes, and the L-shape and the b-shaped vertical planes of the lobular plate are inclined, Wherein the angle is smaller than 90 degrees so that when the flat plates are compressed with each other, mutual detachment is prevented, and the temporary mold has a negative moment at the center of the span by the vertical PS steel tensed to the fulcrum And the cross-sectional efficiency of the temporary mold may be improved.

In addition, the acute angle may be 85 degrees to 89.5 degrees, preferably 88 degrees to 89 degrees.

In addition, a bolt hole into which the stud bolt provided on the upper side of the hollow mold is inserted is formed in the hollow plate, and the bolt hole may have a long diameter in the throttling direction.

Further, it may further include a horizontal PS steel tensed to the lower side of the temporary mold.

The apparatus may further include a plurality of fastening bolts coupling the lower flange, the triangular support, and the bent vent of the temporary mold.

According to an embodiment of the present invention, there is provided a method of constructing a hypothetical bridge having a hypothetical mold, a single-plate integrated structure and a torsional tension structure, the method comprising: providing a plurality of hypothetical vents; Installing a triangular support portion on the hypothetical vent; A step of mounting the temporary mold on the upper side of the triangular support; A vertical PS steel straining step of straining the fulcrum portion of the temporary mold with the vertical PS steel to the hypothetical vent; A fastening bolt fastening step of fastening the lower flange, the triangular fastener, and the bent vent of the temporary mold with the plurality of fastening bolts; And a vertical PS steel unwinding step of releasing the tension of the vertical PS steel.

According to the present invention, a support portion is provided between a hypothetical vent having an enlarged upper end width and a hypothetical mold placed on the hypothetical vent, and the fulcrum portion of the hypothetical mold is tightly fixed to the hypothetical vent with a vertical PS steel , A negative moment is generated at the center of the span of the span, so that the sectional efficiency of the span can be improved, so that the length of the span can be increased, the load-bearing capacity of the span can be increased, the construction period can be shortened, Can be provided.

In addition, a stud bolt provided on an upper flange of a casting mold is inserted into a bolt hole formed in a hollow plate at the time of coupling the hollow casting mold and a hollow plate provided on the upper side of the hollow casting mold, and a wedge is inserted between the hollow plate and the stud bolt By tightening with a nut, the temporary mold and the hollow plate are integrally joined to each other, so that the hollow plate acts as a structural member, and noise and vibration due to running of the vehicle or the like are minimized.

The stud bolt provided in the upper flange of the temporary mold is inserted into the bolt hole formed in the hollow plate at the time of coupling the temporary mold and the hollow plate provided on the upper side of the temporary mold, and the mortar is filled between the hollow plate and the stud bolt By providing a disk steel plate on the upper surface of the mortar and fastening the nut, the temporary mold and the hollow plate are integrally joined to each other, so that the hollow plate acts as a structural member, and noise and vibration due to running of the vehicle or the like are minimized.

Further, by forming the supporting portion with the hinge having the fixing wedge, it is possible to easily fix the temporary mold on the supporting portion, and to provide the effect of flexibly adapting the supporting portion to the deformation of the temporary mold.

Further, both end portions in the throttling direction of the flat plate may be formed in a L-shape and a B-shape, or the L-shaped and b-shaped vertical surfaces may be formed to be inclined so that mutual departure can be prevented when the lining plates are compressed with each other .

Further, by combining the lower flange, the triangular support, and the temporary vent of the temporary mold with the fastening bolt, it is possible to provide an effect of greatly increasing the safety.

Fig. 1 is a longitudinal sectional view showing a continuous bridge of a temporary bridge having a temporary structure with a built-in temporary structure and a bridge structure according to an embodiment of the present invention and a tributary tension structure (hereinafter referred to as a vertical cross- And a cross-sectional view refers to a drawing cut in a direction perpendicular to the intersecting axis).
Fig. 2 is a vertical sectional view showing a simple bridge structure of a hypothetical bridge having an integral structure of a temporary structure, a single-plate structure, and a torsional tension structure according to an example of the present invention.
Fig. 3 is a cross-sectional view showing a hypothetical bridge having an integral structure of a hosiery mold and a hosokawa plate according to an example of the present invention, and a torsional tension structure. Fig.
4A is an enlarged view showing a case in which a support portion of a hypothetical bridge having a tentative mold, a monobasic plate integrated structure and a tributary tension structure according to an exemplary embodiment of the present invention is a hinge.
4B is a view showing the fixing wedge of the hinge of FIG. 4A.
FIG. 4C is a view showing a state where a control member is provided in a stretchable portion provided at the central portion of the fixed wedge of the hinge of FIG. 4A.
FIG. 5A is an enlarged view showing a case where a supporting part of a temporary bridge having a temporary structure, a single-piece structure and a torsion bridge structure according to an embodiment of the present invention is a triangular support part.
5B to 5D are a side view, a front view, and a plan view showing the triangular support portion of Fig. 5A.
6A and 6B are a vertical sectional view and a transverse sectional view showing a state in which the end portions of the visor bridges of the temporary bridges having the tentative mold, the integrated circuit structure and the tent part integral structure according to the exemplary embodiment of the present invention are vertical.
FIG. 7 is a longitudinal sectional view showing a state in which a ladder bridge of a temporary bridge having a temporary structure, an integrated structure of a flat plate and a torsion bridge structure according to an embodiment of the present invention is continuously installed when the ends are in a L-shape and a B-shape.
8 is a cross-sectional view of a hypothetical bridge of a hypothetical bridge having a tentative mold, a monolithic integrated structure and a torsional tension structure according to an exemplary embodiment of the present invention, when the end portions are in a L- and C- And FIG.
FIGS. 9A to 9C are views showing various shapes of a bolt hole formed in a hollow plate of a hypothetical bridge having a hypothetical mold, a monobloc plate integrated structure and a fulcrum tensional structure according to an example of the present invention.
FIGS. 10A to 10C are longitudinal sectional views showing various shapes of bolt holes formed in a flat plate having an end portion of a temporary bridge having a temporary mold, a monobloc plate integrated structure and a tributary tension structure according to an embodiment of the present invention.
FIGS. 11A to 11C show a state in which bolt holes of various shapes are formed on a flat plate having end portions of a hypothetical bridge, a single-plate type integrated structure according to an embodiment of the present invention, and a temporary bridge having a fulcrum tensional structure, FIG.
FIGS. 12A to 12C are cross-sectional views of a hypothetical bridge according to an embodiment of the present invention, in which the end portions of a hypothetical bridge having an integral structure of a bare plate and a torsional tension structure are in a L-shape and a B-shape, And is a longitudinal sectional view showing a state in which bolt holes of various shapes are formed.
Fig. 13A is a side view of a bolt hole in Fig. 9A in which a stud bolt and a nut for joining a hermetic mold to a hosepipe and a nut are formed on a hosepiped plate, according to an example of the present invention, And FIG.
13B to 13E are perspective views showing embodiments of the wedge inserted between the bolt hole of the lid plate of Fig. 13A and the stud bolt of the temporary mold.
FIG. 14A is a cross-sectional view of a bolt hole shown in FIG. 9B in which a stud bolt and a nut for joining a blank to a hollow plate of a hypothetical bridge having a tentative mold and a single- And FIG.
14B is a perspective view showing a wedge inserted between the bolt hole of the lid plate of Fig. 14A and the stud bolt of the temporary mold.
Fig. 15A is a cross-sectional view of a mortar and mortar in the bolt hole of Fig. 9C in which a stud bolt and a nut for coupling a hosepiped joint of a hypothetical bridge and a hosepiped joint having a bipodal- And FIG.
15B and 15C are perspective views showing embodiments of disk steel sheets installed on the upper surface of the mortar of FIG. 15A.
16A to 16D are views showing a construction method of a hypothetical bridge having an integral structure of a hosiery mold, a hosepipolar plate, and a torsional tensional structure according to an example of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In the drawings, like reference numerals are used to refer to like elements throughout the drawings, even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the difference that the embodiments of the present invention are not conclusive.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, May be "connected "," coupled "or" connected ".

The present invention will now be described in detail with reference to the accompanying drawings, wherein like reference numerals refer to like elements throughout.

1 to 3, a hypothetical bridge according to an exemplary embodiment of the present invention having a visor integral structure and a torsion bridge structure includes a plurality of hypothetical vents 1 spaced apart from each other in the throttle direction, A plurality of temporary molds 2 are placed on a vent 1 and a support 3 is provided between the temporary mold 1 and the mold 2. A vertical PS steel 4 A plurality of flat plates 6 are provided on the upper side of the mold 2 after the fulcrum portion of the mold 2 is tensed and fixed to the tentative bent 1. [ Here, the temporary mold 2 refers to a girder used for construction of a temporary bridge, and the PS steel (Prestressing Steel) is a general term for a prestressed steel such as a piano wire, a special steel wire, a steel wire, and a steel bar.

The hypothetical vent (1) is installed at the position where the temporary bridge is to be installed, being spaced by the length of the span. The hypothetical vent 1 corresponding to the fulcrum of the hypothetical bridge acts as a substructure for supporting the hypothetical mold 2 and the like and uses a normal assembly assembled with a steel beam or a steel pipe. The width of the upper end portion in the longitudinal direction (throttling direction) is wider than the width of the lower end portion, so that the moment generated in the temporary mold 2 by the vertical PS steel 4 can be increased. Further, the plurality of temporary vent 1 are spaced apart from each other in a direction perpendicular to the throttle shaft, that is, in the lateral direction of the temporary bridge, and then connected to each other by a cross beam.

The hypothetical mold 2 is mounted on the hypothetical vent 1 in the throttling direction, and either a continuous bridge or a simple bridge is possible. In the following, we mainly describe the continuous bridge method, but there is no difference in principle even for simple bridge. The temporary mold 2 may be directly mounted on the temporary vent 1 but may be mounted on the supporting part 3 after the supporting part 3 is installed on the temporary vent 1. A plurality of stud bolts 73 may be welded or otherwise coupled to the upper flange of the hypothetical mold 2 in order to engage the flat plate 6 to be described later. It is possible to form a screw only at an end portion where it is exposed.

 When the supporting part 3 is provided between the hypothetical vent 1 and the temporary mold 2, the supporting part 3 cooperates with the vertical PS steel 4 to be described later, It is structurally very advantageous to generate the negative moment before the deflection occurs in the downward direction. The supporting portion 3 may be a commonly used elastic support, a hinge 35 (see FIG. 4A), or a triangular support portion 39 (see FIG. 5A).

4A, when the supporting part 3 is the hinge 35, the supporting part 3 includes an upper plate 31 provided below the hypothetical mold 2 and a lower plate 31 provided above the hypothetical vent 1 And a hinge 35 provided between the upper plate 31 and the lower plate 33. The upper plate 31 and the lower plate 33 are provided with a hinge 35, The upper plate 31 and the lower plate 33 are coupled to the lower side of the hypothetical girder or the upper side of the hypothetical vent 1 by welding or bolts and the hinge 35 is fixed to the upper plate 31 of the supporting part 3, A lower vertical member 353 coupled to the lower plate 33 of the supporting unit 3 by welding or bolt, and a lower vertical member 353 coupled to the upper vertical member 351 and lower A rotary shaft 357 for connecting the vertical member 353 so as to be rotatable and a fixed wedge 359 for preventing rotation of the upper vertical member 351 and the lower vertical member 353. Each of the upper vertical member 351 and the lower vertical member 353 may have a single structure, but a plurality of the upper vertical member 351 and the lower vertical member 353 may be structurally more stable. A groove or hole 355 is formed so that both end portions of the U-shaped fixed wedge 359 (see FIG. 4B) are inserted into the cutout groove or hole 355. The fixed wedge 359 is maintained in a state in which the upper vertical member 351 and the lower vertical member 353 of the hinge 35 are not rotated and thereby the mounting of the temporary mold 2 is facilitated, It is possible to accommodate the deformation when the center portion is sagged downward by its own weight after the mounting portion 2 is mounted.

Meanwhile, the fixed wedge 359 may be provided with a stretchable and contractible portion 360 (refer to the second and third drawings in FIG. 4B) at the central portion thereof. The stretchable and contractible portion 360 is maintained in a state where the upper plate 31 and the lower plate 33 are kept in equilibrium before external force is applied to the hinge 35, 2, and when the external force acts, that is, when the temporary mold 2 is stuck, the hinge 35 is stretched and expanded to accommodate a certain degree of rotation, So that the mold 2 can be supported well. The stretchable and contractible portion 360 may be composed of a sawtooth shape (see the second drawing in FIG. 4B) or a spring shape (see the third drawing in FIG. 4B). The stretchable and contractible portion 360 may further be provided with a control member 361 (see FIG. 4C) for restricting the expansion and contraction thereof. The control member 361 controls the extension and contraction so as not to rotate the hinge 35 unnecessarily, that is, to prevent the hinge 35 from rotating due to a small external impact or the like, thereby maintaining a stable state (balanced state) The control member 361 breaks or warps or falls off from the stretchable and contractible portion 360 to cause the stretchable and contractible portion 360 to be stretched or shrunk Is allowed. Accordingly, the control member 361 can be welded or assembled to the stretchable and contractible portion 360.

5A, the supporting portion 3 has a shape in which the height gradually decreases from the end of the hypothetical vent 1 to the center of the hypothetical vent 1, (See Figs. 5B to 5D). Therefore, the triangular support portions 39 are provided in pairs in opposite directions to each other at the pierced point portion, and one is provided in the case of the alternate point portion.

 When the triangular support portion 39 is provided, it may further include a plurality of fastening bolts 90 for fastening the lower flange, the triangular support portion 39, and the temporary vent 1 of the temporary mold 2. The fastening bolts 90 are fixed to the hypothetical vent 1 with the vertical PS steel 4 by fixing the hypothetical mold 2 to the lower flange of the hypothetical mold 2 and the triangular support 39 and the hypothetical vent 1 So as to firmly secure the tension generated by the vertical PS steel 4 and at the same time to greatly enhance the safety of the temporary bridge. That is, since the temporary mold 2, the triangular support portion 39, and the temporary vent 1 are integrally joined by the plurality of fastening bolts 90, the safety of the temporary mold 2, , And completely eliminates the unstable factors such as the release of unexpected stresses that may occur in the case of the tensed vertical PS steel 4. The vertical PS steel 4 can be held or removed as it is after the fastening bolts 90 are fastened. In either case, there is no problem in terms of safety and vertical tensions. The triangular support portion 39 may be designed to have a curved shape in consideration of gentle bending of the hypothetical mold 2 which is fixed by the vertical PS steel 4 unlike the drawing, 90 can be adjusted so that unnecessary stress is not generated in the temporary mold 2 on the fulcrum portion. In other words, the downward inclination of the triangular support portion 39 is reduced from the end portion toward the center at a small amount at the beginning, thereby making it possible to secure a desired structure without causing a break in the temporary mold portion 2 at the point portion.

The hinge 35 or the triangular support portion 39 is provided on both ends of the temporary vent 1 and the vertical PS steel 4 is used to fix the fulcrum portion of the temporary mold 2 to the temporary vent 1, a negative moment is generated by the vertical PS steel 4 at the central portion of the span of the span, so that the defining moment at the span of the span of the temporary mold 2 is reduced, and at the same time, The moment is also reduced. Accordingly, the central deflection of the temporary mold 2 is reduced, the temporary structure of the temporary bridge becomes possible, the sectional efficiency is improved, the height and the cross-sectional area of the temporary mold 2 are reduced, and the load bearing capacity of the temporary mold 2 is increased The construction cost is saved, the construction period is shortened, the temporary mold 2 is made slimmer, and the aesthetic appearance is improved.

A horizontal PS steel material 5 is additionally provided on the lower side of the hypothetical mold 2 to introduce a prestress so that the defining moment at the center of the interstice between the hypothetical molds 2 is further reduced, The central deflection can be reduced and at the same time the load bearing capacity of the mold 2 can be increased. In order to fix the horizontal PS steel 5, a fixing part is provided below the mold 2. [

On the other hand, on the upper side of the hypothetical mold 2, a plurality of flat plates 6 are provided continuously in the throttle direction. The flat plates 6 are firmly fixed together with the nuts 74 to a plurality of stud bolts 73 provided on the upper side of the mold 2 in close contact with each other in the diagonal direction so as to serve as a structural member, Noise and vibration due to driving of a vehicle or the like are minimized. In this case, the cross section of the temporary mold 2 can be further reduced, and in the case of the same temporary mold 2, a larger load can be supported.

6A and 6B). In contrast, the contact surface in the throttle direction of the flat plate 6 is generally formed as a vertical plane (see Figs. 6A and 6B) The pendulum shape 61 at one side end overlaps with the pendulous shape 63 of the adjacent other porous plate 6 and the pendulous shape 63 at the other end side is overlapped with the pendulous shape 63 of the adjacent other porous plate 6 (See Fig. 7) so as to be overlapped with the L-shape 61. Therefore, one stud bolt 73 can be used to couple the adjacent two flat plates 6 to the temporary mold 2 at the same time, and more tightly coupling between the adjacent two flat plates 6 becomes possible.

The vertical planes 611 and 631 of the L-shape 61 and the L-shaped L-shape 63 of the flat plate 6 may be vertically formed (see FIG. 7) or inclined (see FIG. 8). When the vertical surfaces 611 and 631 of the LR shape 61 and the LR shape 63 of the flat plate 6 are inclined and the vertical surfaces 611 and 631 of the ends of the LR shape 61 and the LR shape 63, Are formed at an acute angle smaller than 90 degrees with the horizontal surfaces 613 and 633 between the L-shape 61 and the L-shape 63 of the L-shaped plate 6, when the L- (6) can be prevented from being separated from each other. That is, when a load is applied to the temporary mold 2 to receive a positive moment, and thus the laminating plates 6 are compressed to each other, the laminating plates 6 are pushed into the adjacent other laminating plates 6, Is prevented. The acute angle formed by the vertical faces 611 and 631 of the end face 61 and the end face 63 of the flat plate 6 and the middle horizontal faces 613 and 633 is 85 to 89.5, To 89 degrees. When the acute angle is close to 90 degrees, the above-mentioned effect is reduced. On the other hand, when the acute angle is too small, each of the flat plates 6 is excessively digged to the inside of the adjacent flat plate 6, which is structurally disadvantageous. Therefore, it is preferable to select within the above described angle.

A bolt hole 71 into which the stud bolt 73 of the mold 2 is inserted is formed in the flat plate 6 in order to join the mold 2 and the flat plate 6. [ The stud bolt 73 is first vertically welded to the temporary mold 2 and then the flat plate 6 having the bolt hole 71 is formed and fastened with the nut 74. Thus, (2). The bolt holes 71 may be formed in the form of a long hole, in the form of a tube having an upper light-tight junction, or may be formed by a conventional circular bolt hole.

The stud bolt 73 inserted into the bolt hole 71 of the flat plate 6 firmly fixes the flat plate 6 in the vertical direction, By allowing a minute variation in the horizontal direction of the flat plate 6, the flat plates 6 can be held in close contact with each other to cope with bending compressive stress.

On the other hand, the normal bolt holes 71 having the same diameter are firmly fastened between the bolt hole 71 and the stud bolt 73 due to the gap between the bolt hole 6 and the temporary mold 2, Fully unified bonding is difficult. 9A and 9B, a bolt hole 71 is formed in the shape of a tube having an upper light-tight shape and a wedge 76 to be described later is inserted between the stud bolt 73 and the bolt hole 71 Alternatively, as shown in FIG. 9C, the bolt hole 71 is formed in a general shape having the same diameter, and the mortar 78 is filled between the stud bolt 73 and the bolt hole 71 to form the temporary mold 2 And the flat plate 6 can be integrally combined. The upper bolt hole 71 may be formed so that the diameter of the section becomes smaller constantly from the upper side to the lower side of the bolt hole 71 (see FIG. 9A) (See Fig. 9B) so that the diameter of the cross section decreases from the intermediate portion to the lower portion. The bolt holes 71 may be formed in a circular shape as well as a circular shape as shown in the figure. The bolts 71 may be formed by fastening the nuts 74 to the ends of the stud bolts 73, A rubber cap 75 or the like may be provided to prevent intrusion of foreign objects or the like on the way. The shape of the bolt hole 71 may be formed such that the shape of the end portion of the flat plate 6 is formed vertically or formed into the LR shape 61 and the LR shape 63 or the inclined LR shape 61, Shape 63 as shown in Figs. 10A to 12C.

When the bolt hole 71 is in the shape of a tube having an upward light lowering, the lid 6 is inserted into the bolt hole 71 provided in the lid plate 6, as shown in Figs. 13A and 14A, The stud bolts 73 are inserted and a plurality of divided wedges 76 are inserted between the stud bolts 73 and the bolt holes 71 and then fastened with the nuts 74. As a result, (2) and can serve as a structural member. This is because the wedge 76 is inserted between the stud bolt 73 and the bolt hole 71 as the nut 74 is fastened so that the wedge 76 is fixed to both sides of the stud bolt 73 and the bolt hole 71 Tightly adhered together with the stud bolt 73 and the bolt hole 71 and at the same time the mold 2 and the hollow plate 6 are integrated. Two or more divided wedges 76 may be provided. The wedges 76 may be provided from the upper side to the lower side of the bolt hole 71 so that the diameter of the cross section is gradually reduced from the upper side to the lower side. 13b to 13e), or a part of the lower part is cut from the upper side to the middle part of the bolt hole 71, and the upper part is formed as a part having the same diameter as the section, and the diameter of the section is smaller toward the lower part from the middle part (See Fig. 14B).

In the case where the divided wedges 76 are provided from the upper side to the lower side of the bolt hole 71 and the diameter of the cross section is made smaller constantly from the upper side to the lower side, each of the plurality of wedges 76 is formed into a wedge 76) and a convex portion 764 (see Fig. 13B) can be provided on the mutual contact surfaces. Therefore, the wedge 76, the stud bolt 73, and the bolt hole 71 can be integrally combined by tightly fitting the concave portion 763 and the convex portion 764 into each other. In addition, since the wedge (76) is inserted very firmly, the divided wedges (76) are arranged on the wedge (76) (See FIG. 13C), or a screw hole 766 may be formed on the upper surface of each wedge 76 (see FIG. 13D). The wedge-shaped flange 761 is used as a catching groove of the drawing device when the wedge 76 is pulled out, so that the wedge 76 can be easily pulled out when the temporary bridge is dismantled. So that the wedge 76 is pulled out when the wedge 76 is pulled out. On the other hand, the divided wedges 76 may be formed in a circular shape as shown in FIG. 13E, although the entire cross section may be formed in a circular shape.

However, when the inner surface of the bolt hole 71 and the entire outer surface of the wedge 76 are formed so as to be narrowed from the upper side to the lower side at a constant angle as shown in FIG. 13A, It is difficult to form the angle of the outer surface of the wedge 76 in accordance with the angle and when the angle of the inner surface of the bolt hole 71 and the angle of the outer surface of the wedge 76 do not coincide, A gap is formed between the bolt hole 71 and the wedge 76 so that the wedge 76 is not closely attached to both sides of the stud bolt 73 and the bolt hole 71 . 14A, an upper portion of the bolt hole 71 is formed to have the same diameter as the cross section, and is formed so as to be narrowed at a constant angle from the middle portion to the lower portion, and the wedge 76 The upper portion of the wedge 76 may be formed to have the same diameter in the cross section and be formed to be narrowed from the middle portion to the lower portion at a constant angle from the upper portion to the intermediate portion of the bolt hole 71. The length of the outer surface of the wedge 76 to be formed in accordance with the angle of the inner surface of the bolt hole 71 is shortened to make the wedge 76 easy to insert and the wedge 76 to be inserted easily, There is no problem that a clearance is formed between the wedge 76 and the bolt hole 71 because the entire outer side surface of the wedge 76 is closely contacted with the inner side surface of the bolt hole 71. [ As the nut 74 is fastened, the wedge 76 pushes the inner surface of the bolt hole 71 in the intermediate portion as well as the lower surface of the wedge 76, so that the stud bolt 73 and the bolt hole 71 As shown in Fig.

The wedge 76 is provided from the upper side to the middle portion of the bolt hole 71 and the upper part of the wedge 76 is formed as a portion having the same diameter in the cross section and the diameter of the cross section is decreased from the intermediate portion to the lower portion The divided plurality of wedges 76 of the first embodiment are shown in Fig. 14B. In this case, as described above, the concave portion 763 and the convex portion 764 can be provided on the contact surfaces of the divided wedges 76, and the L-shaped flange 761 can be provided on the upper side, And the entire cross section can be formed into a circular shape or a square shape.

15A, the bolt hole 71 is formed in the same shape as the normal diameter, and the stud bolt 73 is inserted into the bolt hole 71, and then the stud bolt The mortar 78 is filled in place of the wedge 76 between the stud bolt 73 and the bolt hole 71 in order to fix the bolt hole 71 and the bolt hole 71 to the fixed mold 2, And can function as a structural member. This is because the mortar 78 is integrated with the stud bolt 73 and the bolt hole 71 as the filled mortar 78 hardens and thus the temporary mold 2 and the hollow plate 6 are integrated. At this time, a rubber ring 79 is provided below the stud bolt 73 before the mortar 78 is laid, so that leakage of the mortar 78 can be prevented when the mortar 78 is filled. On the other hand, the mortar (78) is preferably a non-shrinkable mortar, and a non-shrinkage concrete may be used.

When the mortar 78 is filled only between the bolt hole 71 and the stud bolt 73, the laminating plate 6 acts together with the temporary mold 2 as a structural member so that when the load is applied, The bolt hole 71 and the stud bolt 73 may be damaged by the hardened mortar 78 between the bolt hole 71 and the stud bolt 73. [ The disk steel plate 80 is installed on the upper surface of the mortar 78 and the nut 74 is fastened to the disk steel plate 80 before the mortar 78 is cured after the mortar 78 is filled, 78 are held together with the bolt holes 71 and the stud bolts 73 on all sides so that the mortar 78 is completely brought into close contact with the bolt holes 71 and the stud bolts 73 and the fixing force is increased.

The disk steel plate 80 may have a circular section (see FIG. 15B) or a quadrangle (see FIG. 15C). As shown in FIG. 15B, a support member 81 is provided on the lower side, May be formed in various shapes. The support member 81 is supported from the lower side of the disk steel plate 80 to the end of the bolt hole 71 so that the support member 81 is supported on the lower side of the bolt hole 71, It is possible to fix the disc steel plate 80 such that the disc steel plate 80 is not moved downward when the disc steel plate 80 is installed. The release member 83 is necessary to easily pull out the disk steel plate 80 and the mortar 78 when the temporary bridge is dismantled. Since the mortar 78 is engaged with the support member 81 of the disk steel plate 80, the mortar 78 is hardened between the bolt hole 71 and the stud bolt 73 when the disk steel plate 80 is pulled out ) Can also be withdrawn together. Before the filling of the mortar 78 into the bolt hole 71, a stripping agent is previously applied to the surfaces of the stud bolt 73 and the bolt hole 71 which are in contact with the mortar 78, It is possible to smoothly perform removal of the cap 78.

Hereinafter, a method of constructing a hypothetical bridge, an integrated structure of a flat plate and a temporary bridge structure according to an exemplary embodiment of the present invention will be described in detail with reference to the drawings.

16A to 16D, a method of constructing a hypothetical bridge having an integral structure of a temporary structure, a single-plate structure, and a torsional tension structure according to an exemplary embodiment of the present invention includes the steps of installing a hypothetical vent, installing a triangular section, A vertical PS steel strain step, a fastening bolt fastening step, and a vertical PS steel strain relief step. The above-mentioned vertical PS steel strain relief step may be omitted, and the construction of the hypothetical bridge having the temporary mold, the integrated circuit board structure and the torsional tension structure will be described with reference to the above description.

In the step of installing the temporary vent, as shown in FIG. 16 (a), a plurality of temporary vents 1 are installed at a position where the temporary bridge is installed at a predetermined interval. The width of the upper end portion of the hypothetical vent 1 may be a truss larger than the width of the lower end portion. Meanwhile, the step of installing the temporary vent may further include the step of installing a cross beam connecting the adjacent ones of the hypothetical vents 1 in the transverse direction.

16A, a triangular support portion 39 is provided on the hypothetical vent 1, and the triangular support portion 39 is provided on the side of the hypothetical vent 1 at the end of the hypothetical vent 1, The height is gradually reduced toward the center of the substrate.

As shown in Fig. 16A, the step of mounting the temporary mold is a step of mounting the temporary mold 2 on the upper side of the triangular support portion 39 in the throttling direction. A stud bolt 73 for engaging with the flat plate 6 may be joined to the upper flange of the mold 2 by welding or the like.

The vertical PS steel straining step is a step of straining the fulcrum of the hypothetical mold 2 with the vertical PS steel 4 to the hypothetical vent 1, as shown in Fig. 16b. The vertical PS steel 4 is installed in a vertical direction between the temporary mold 2 of the flank and the temporary vent 1 and introduces the prestress in the vertical direction by using the vertical PS steel 4.

The fastening bolt fastening step is a step of tightening the lower flange, the triangular support portion 39 and the temporary vent 1 of the temporary mold 2 with a plurality of fastening bolts 90 as shown in Fig. 16C. By fixing the hypothetical mold 2 with the triangular support portion 39 and the prestress into the vertical PS steel 4 so that the center of the spindle has risen upwardly to the hypothetical vent 1 with the fastening bolts 90, A negative moment is generated at the center of the ground of the temporary mold 2, so that the defining moment at the center of the ground of the temporary mold 2 is reduced, and at the same time, the negative moment at the focal point is also reduced.

The vertical PS steel strain relief step is a step of releasing the tension of the vertical PS steel 4, as shown in FIG.

After the vertical PS steel material releasing step is performed, a step of installing a laminating plate in which the laminating plate 6 is continuously arranged in the throttle direction on the upper side of the temporary mold 2 can be carried out. A stud bolt 73 fixed to the mold 2 is inserted into the bolt hole 71 of the hollow plate 6 and the nut 74 is inserted into the stud bolt 73 And a wedge 76 may be inserted between the bolt hole 71 and the stud bolt 73 or the mortar 78 may be filled.

In addition, after the step of installing the flat plate, the horizontal PS steel material tentering step may be performed in which the horizontal PS steel material 5 is tensed and installed in the lower side of the mold 2 in the throttle direction.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. That is, within the scope of the present invention, all the constituent elements may be constituted or operated selectively in combination with one or more. Furthermore, the terms "comprises", "comprising", or "having" described above mean that a component can be implanted unless otherwise specifically stated, But should be construed as including other elements. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

1: hypothetical vent
2: hypothetical template
3: Support
31: upper plate
33: Lower plate
35: Hinge
351: upper vertical member
353: Lower vertical member
355: incision groove or hole
357:
359: Fixed wedge
360: stretching part
361: control member
39: The triangle branch
4: Vertical PS steel
5: Horizontal PS steel
6:
61: Lenticular shape
611:
613: Horizontal plane
63: Shape of shape
631: Vertical plane
633: Horizontal plane
71: Bolt hole
73: Stud bolt
74: Nut
75: Rubber cap
76: Wedge
761: Lateral flange
763: lumbar
764: convection
766: The Naga
78: Mortar
79: Rubber ring
80: Disc steel plate
81: Support member
83:
90: fastening bolt

Claims (17)

delete delete delete delete delete delete delete delete delete delete delete A plurality of hypothetical vents in which the width of the upper end portion is enlarged and spaced apart from each other;
A plurality of temporary molds placed on the hypothetical vent;
A support portion provided between the hypothetical vent and the temporary mold;
A vertical PS steel torsionally fixing the fulcrum portion of the temporary mold in a direction perpendicular to the hypothetical vent;
A plurality of flat plates provided on the upper side of the mold; Including,
Wherein the support portion is a triangular support portion whose height gradually decreases from an end portion of the hypothetical vent toward the center,
Further comprising a plurality of fastening bolts coupling the lower flange of the temporary mold, the triangular support, and the temporary vent,
The flat plate is coupled to a plurality of stud bolts provided on the upper side of the mold to serve as a structural member,
When the flat plate is installed continuously on the temporary mold, the L-shape and the B-shape are formed in the shape of a b-letter and a letter of the other adjacent lobes Respectively,
Wherein the angles formed between the L-shape and the B-shaped vertical planes of the flat plate are inclined so that angles formed with the horizontal planes are formed at an acute angle smaller than 90 degrees so that when the flat plates are compressed with each other,
Wherein the temporary mold has a negative moment generated at the center of the span by the vertical PS steel tensed to the fulcrum portion, thereby improving the sectional efficiency of the temporary mold, and the hypothetical mold having a single- Bridges.
The method of claim 12,
Wherein the acute angle is between 85 degrees and 89.5 degrees; and a hypothetical bridge having an integral structure and a torsional tension structure.
The method of claim 12,
A bolt hole into which the stud bolt provided on the upper side of the hollow mold is inserted,
Wherein the bolt hole is a long hole having a long diameter in the throttling direction, and a hypothetical bridge having an integral structure of a flat plate and a torsional tension structure.
The method of claim 12,
A hypothetical mold further comprising a horizontal PS stiffened to the lower side of the mold, and a hypothetical bridge having an integral structure and a torsional tension structure.
delete A method of constructing a hypothetical bridge having a temporary structure, a single-plate structure and a torsional tension structure according to claim 12,
Installing a plurality of the venting vents;
Installing a triangular support portion on the hypothetical vent;
A step of mounting the temporary mold on the upper side of the triangular support;
A vertical PS steel straining step of straining the fulcrum portion of the temporary mold with the vertical PS steel to the hypothetical vent;
A fastening bolt fastening step of fastening the lower flange, the triangular fastener, and the bent vent of the temporary mold with the plurality of fastening bolts;
And a vertical PS steel tender release step of releasing the tensional stress of the vertical PS steel. The method for constructing a hypothetical bridge having an integral structure and a torsional tension structure.
KR1020150122453A 2015-08-31 2015-08-31 Temporary bridge having the structure system combining girder with decking pannel and prestressing the supporting point and method for constructing thereof KR101632960B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107815954A (en) * 2017-12-06 2018-03-20 哈尔滨市市政工程设计院 The overpass or steel suspension bridge of Vibration Active Control are realized based on pneumatic muscles
KR102161809B1 (en) * 2019-10-15 2020-10-05 주식회사 중앙이앤씨 Temporary bridge structure and construction method athereof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH072828Y2 (en) * 1989-04-07 1995-01-25 鹿島建設株式会社 Hollow concrete slab mounting structure
KR100395772B1 (en) * 2000-05-22 2003-08-25 김윤환 An wedge for a PC steel wire for fixing construction structure
KR100579597B1 (en) 2005-11-09 2006-05-16 (주)리튼브릿지 Temporary construction system and the construction method using the same
KR100911451B1 (en) 2008-10-30 2009-08-11 주식회사 오케이컨설턴트 Composite temporary bridge be combind main girder and deck plate construction and method thereof
KR101055856B1 (en) 2009-08-31 2011-08-09 주식회사 승화이엔씨 Girder integrated double plate and temporary bridge using the same
KR101197320B1 (en) * 2012-03-14 2012-11-05 (주)지아이건설 Temporary bridge constructio method using girder support structure
KR20150004637A (en) * 2013-07-03 2015-01-13 주식회사종합건축사사무소가람건축 Large diameter steel reinforcement connectors

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH072828Y2 (en) * 1989-04-07 1995-01-25 鹿島建設株式会社 Hollow concrete slab mounting structure
KR100395772B1 (en) * 2000-05-22 2003-08-25 김윤환 An wedge for a PC steel wire for fixing construction structure
KR100579597B1 (en) 2005-11-09 2006-05-16 (주)리튼브릿지 Temporary construction system and the construction method using the same
KR100911451B1 (en) 2008-10-30 2009-08-11 주식회사 오케이컨설턴트 Composite temporary bridge be combind main girder and deck plate construction and method thereof
KR101055856B1 (en) 2009-08-31 2011-08-09 주식회사 승화이엔씨 Girder integrated double plate and temporary bridge using the same
KR101197320B1 (en) * 2012-03-14 2012-11-05 (주)지아이건설 Temporary bridge constructio method using girder support structure
KR20150004637A (en) * 2013-07-03 2015-01-13 주식회사종합건축사사무소가람건축 Large diameter steel reinforcement connectors

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107815954A (en) * 2017-12-06 2018-03-20 哈尔滨市市政工程设计院 The overpass or steel suspension bridge of Vibration Active Control are realized based on pneumatic muscles
CN107815954B (en) * 2017-12-06 2023-11-10 哈尔滨市市政工程设计院 Pedestrian overpass or steel temporary bridge realizing active vibration control based on pneumatic muscles
KR102161809B1 (en) * 2019-10-15 2020-10-05 주식회사 중앙이앤씨 Temporary bridge structure and construction method athereof

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