KR102033052B1 - Method for constructing truss bridge support with infilled tube using src girder - Google Patents

Abstract

The present invention relates to a method for constructing a pointed portion of a filled steel tube truss bridge, and in detail, a truss continuous point portion connected to a unit filled steel pipe truss girder is manufactured of concrete-reinforced concrete (SRC) girders made of concrete, horizontal filled steel pipes, and vertical steel pipes. However, it is symmetrical to each other up and down and interconnected by vertical steel pipes, divided into the longitudinal direction and manufactured and then moved to the installation site filled steel pipe and precast to form a continuous truss portion by installing a plurality of continually in the piers A method for constructing a branch part of a filled steel tube truss bridge using a concrete block.

Description

METHODS FOR CONSTRUCTING TRUSS BRIDGE SUPPORT WITH INFILLED TUBE USING SRC GIRDER}

The present invention relates to a method for constructing a pointed portion of a filled steel tube truss bridge, and in detail, a truss continuous point portion connected to a unit filled steel pipe truss girder is manufactured of concrete-reinforced concrete (SRC) girders made of concrete, horizontal filled steel pipes, and vertical steel pipes. However, it is symmetrical to each other up and down and interconnected by vertical steel pipes, divided into the longitudinal direction and manufactured and then moved to the installation site filled steel pipe and precast to form a continuous truss portion by installing a plurality of continually in the piers A method for constructing a branch part of a filled steel tube truss bridge using a concrete block.

In general, the bridge type is divided into steel bridge and concrete bridge in terms of material.

Steel bridges have a disadvantage in that a large number of reinforcement materials are required because the manufacturing process such as welding or bolting a member element is complicated while the material is expensive, and it is vulnerable to buckling due to compressive load.

In addition, the concrete bridge has a disadvantage that excessive cross-sectional design is inevitable because of its own weight, additional construction costs such as formwork manufacturing process is burdened, and quality control and maintenance is difficult.

In order to compensate for these disadvantages and maximize the advantages of each structural material, composite and composite structures are actively applied to meet the behavior characteristics of the members.

As one of the structural forms satisfying these requirements, the proposed concrete filled steel pipe member can be filled with concrete-based material to improve the deformation performance, rigidity and strength of the member due to the mutual binding effect between the steel pipe and the filling material. It is a structural member.

The concrete filled steel pipe structure was developed for the purpose of increasing the strength and ductility of the pillar member whose axial compressive force acts as the main load.However, the concrete filled steel pipe structure has the advantages of excellent strength, excellent deformation performance, noise and vibration suppression effect. With this in mind, we have begun to explore ways to utilize bridge girders, and compared with single steel pipe structures or reinforced concrete structures of the same section, we can obtain excellent mechanical effects such as increased strength, improved deformation performance, and increased rigidity.

The filled steel tube truss girder bridge as shown in Figure 1 as the upper chord 11, the lower chord 13 and the reinforcement 15 to the elastic support 23 to the coping portion 21 formed in the upper portion of the piers 20 After the unit filling steel pipe truss girder 10 is made, and the unit filling steel pipe truss girder 10 are interconnected, the bottom plate 30 is installed on the upper surface of the unit filling steel pipe truss girder 10.

On the other hand, the structure of the filled steel tube truss girder bridge is similar in structure to the truss structure, but unlike the truss member composed of the tension member and the compression member is characterized in that additional member forces such as bending and torsion.

In particular, in the case of lower chords, there is a need for a support type that can sufficiently cope with the tensile force due to the bending component and the compressive force concentrated in the arc shape.

However, the elastic bearing type point treatment applied to general straight girders cannot sufficiently handle the above-mentioned action force generated by the arch of the filled steel truss girder bridge, and cannot reflect the mechanical advantages of the arch. There are some structural disadvantages.

In order to solve this problem, there is disclosed a method for constructing an integral part of a steel pipe embedded concrete block, which is a Korean Patent Registration Publication No. 10-1184654 filed by the present applicant.

The method of constructing the integral part of the steel pipe embedded concrete block is installed on the upper surface of the pier or the alternating device, the concrete block is placed on the upper surface of the bridge device or mounted in a precast form of the concrete block, the concrete A concrete block installation step of embedding each connection member in the axial direction in the upper and lower ends of the block to form a single body; A unit truss girder consisting of an upper chord, a lower chord, and a vertical stiffener and a yarn stiffener is installed in the axial direction in the concrete block, and the truss is installed to fix the upper chord and the lower chord of the unit packed steel truss girder to the connecting member. fair; And a bottom plate forming process of forming a bottom plate on an upper surface of the unit filled steel pipe truss girder and an upper surface of the concrete block, and a branch part generated from an arched girder by integrating the upper and lower chords of the girder by embedding it in a concrete block. It is possible to efficiently control the compressive force and the tensile force and to integrate the point portion and to continuous, and to control the bending force, the torsion, the contraction, the expansion, and the like, corresponding to the tensile force and the compressive force generated at the point portion.

However, such a conventional method for constructing an integral part of a steel pipe-filled concrete block integrated site part has a problem in that the construction period is increased because the concrete block is integrated with the unit-filled steel pipe truss girder and the floor plate is placed in the field.

In addition, the conventional steel pipe buried concrete block integrated point construction method has a problem in that the construction cost increases because the volume of the concrete block is to be larger, and the size of the pier must also be large when it is to be applied to large bridges.

Domestic Patent Registration Publication No. 10-1184654

The present invention is to solve the problems as described above, but the truss continuous point portion connected to the unit filled steel tube truss girder is made of SRC girders consisting of concrete and horizontal filled steel pipe and vertical steel pipe, it is symmetrical with each other up and down by vertical steel pipe It provides a method of constructing the pointed part of the filled steel truss bridge using SRC girders, which are connected to each other, and are manufactured by dividing in the longitudinal direction, and then installing a plurality of continuity points on the piers continuously while moving to the installation site. There is a purpose.

In addition, the present invention provides a method of constructing the point portion of the filled steel tube truss bridge using the SRC girders to shorten the assembly time by combining the upper SRC girders with the lower SRC girders in place using a guide device. have.

In addition, the present invention blocks the upper part of the upper and lower SRC girders, the loop reinforcement is projected to the point construction method of the point of filling steel pipe truss bridge using the SRC girders to easily integrate with the neighboring upper and lower SRC girders. There is another purpose to provide.

Features of the present invention for achieving the above object,

It is manufactured in the form of a rectangular parallelepiped by reinforcing steel and concrete, and is formed in a tapered shape from the center of the bottom in the axial direction to the front and back, and forms an insertion groove of a rectangular shape so that horizontal steel pipes with a plurality of vertical steel pipes installed at equal intervals are inserted. SRC girder fabrication process of dividing the upper SRC girder in the longitudinal direction to form a rectangular parallelepiped symmetrical to the lower SRC girder by cutting out the rebar in the longitudinal direction to expose the loop reinforcement; ; A lower SRC girder integration process in which each lower SRC girder is installed to be mutually interviewed by lifting the upper portion of the piers, and the non-shrink mortar or concrete is poured on the block-out site to integrate each lower SRC girder; A horizontal steel pipe installation step of installing the horizontal steel pipe in the insertion groove of any one of the lower SRC girders among the plurality of lower SRC girders; A horizontal steel pipe fixing process of fixing the horizontal steel pipe by fixing the vertical steel pipe with the guide device after installing a guide device on an upper surface of the lower SRC girder in which the horizontal steel pipe is installed; A horizontal steel pipe embedding step of embedding the horizontal steel pipe by pouring non-contraction mortar or concrete into the insertion groove in which the horizontal steel pipe is installed; When curing is completed and the horizontal steel pipe is buried and fixed, the guide device is raised, and then the upper SRC girder is lifted to the upper part of the guide device and seated on the guide device, and then the guide device is lowered to the upper SRC girder. An upper SRC girder installation process of interviewing the end of the vertical steel pipe and the end of the vertical steel pipe of the lower SRC girder with each other; An upper SRC girder integration process of integrating each of the upper SRC girders by removing the guide device and then placing non-shrink mortar or concrete on the block-out site when the installation of each upper SRC girder is completed; And an upper chord, a lower chord, and a unit filled steel tube truss girder composed of a vertical reinforcement and a yarn reinforcement so as to be symmetrically spaced apart from each other in the longitudinal direction about the upper and lower SRC girders, respectively. It is characterized by consisting of a point connection process for fixing the current and the lower current to the horizontal steel pipe of each of the upper, lower SRC girders.

Here, the horizontal steel pipe is a filled steel pipe.

Here, the both ends of the horizontal steel pipe and one end of the vertical steel pipe is provided with a flange to enable the bolt.

Here, the outermost vertical steel pipe of the vertical steel pipe is exposed to reinforce the connecting portion when connecting with the unit filled steel pipe truss girder.

Here, the loop reinforcing bars are installed at the crossing positions so that the overlapping chip joints are formed.

Here, the guide device includes a seating plate formed with a through hole into which the vertical steel pipe of the upper SRC girder is inserted so that the upper SRC girder is seated, and a central portion thereof is separated in the width direction; A plurality of extension legs installed perpendicular to the bottom of the seating plate; And a plurality of hydraulic cylinders installed perpendicularly to the lower portion of the extension leg and fixed to the upper surface of the lower SRC girder.

Here, the seating plate is formed with inclined guide protrusions in the upper and lower portions of the through-hole so that the vertical steel pipe of the upper SRC girder is inserted into the alignment position.

Here, the reinforcing beam is installed on the bottom surface according to the load of the upper SRC girder.

Here, the insertion groove is provided with a spacer for fixing the horizontal steel pipe.

According to the construction method of the point portion of the filling steel pipe truss bridge using the present invention SRC girders, the truss continuous point portion connected to the unit filling steel pipe truss girder is made of SRC girders consisting of concrete, horizontal filled steel pipe and vertical steel pipe, SRC girders are relatively light in weight, as they are symmetrically up and down and interconnected by vertical steel pipes. Easy transportation and lifting can reduce construction cost.

In addition, according to the present invention it is possible to shorten the assembly time by combining the upper SRC girders in the correct position using a guide device when combining the lower SRC girders.

Further, according to the present invention, the upper part of the upper and lower SRC girders is blocked out, and the loop reinforcing bars protrude therefrom, so that the upper and lower SRC girders can be easily integrated with neighboring upper and lower SRC girders.

1 is a side view showing the configuration of a conventional packed steel tube truss girder bridge.
Figure 2 is a partial side view showing a state of the filled steel pipe truss bridge constructed in the method of construction of the branch portion of the filled steel pipe truss bridge using the present invention SRC girders.
Figure 3 is a partial front view showing a state of the filled steel pipe truss bridge constructed in the method of the construction of the point portion of the filled steel pipe truss bridge using the present invention SRC girders.
Figure 4 is a perspective view showing the configuration of the upper, lower SRC girder according to the present invention.
5 is a perspective view showing the configuration of a guide device according to the present invention.
Figure 6 is a process chart for explaining the method of construction of the point portion of the filled steel tube truss bridge using the SRC girder according to the present invention.
7 to 13 are explanatory views for explaining a method of constructing the point portion of the filled steel tube truss bridge using the SRC girders according to the present invention.

Hereinafter, the configuration of the filled steel pipe truss bridge constructed by the point construction method of the filled steel pipe truss bridge using the SRC girder according to the present invention will be described in detail with reference to the accompanying drawings.

In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. Terms to be described later are terms defined in consideration of functions in the present invention, and may be changed according to intentions or customs of users or operators. Therefore, the definition should be made based on the contents throughout the specification.

Figure 2 is a partial side view showing a state of the filled steel pipe truss bridge constructed in the method of the construction of the point of the filling steel pipe truss bridge using the present invention SRC girders, Figure 3 is a construction of the point construction method of the filling steel pipe truss bridge using the SRC girder of the present invention Partial front view showing a state of the filled steel tube truss bridge, Figure 4 is a perspective view showing the configuration of the upper, lower SRC girder according to the present invention, Figure 5 is a perspective view showing the configuration of the guide device according to the present invention.

2 to 5, the filling steel pipe truss railway bridge 100 according to the present invention is a bridge 110, the bridge device 120, the lower SRC girder 130, the upper SRC girder 140 and the unit filled steel pipe truss It is made of girder 150.

First, the pier 110 is fabricated in a field casting or precast manner, which is conventional. Here, the pier 110 may be applied to the alternating, the alternating is also manufactured in the field casting or precast manner, which is the usual way, such as a pier.

And, the seating device 120 corresponds to a point reaction force generated at the point portion of the lower SRC girders 130 to be described below as a normal seating device, and controls the behavior such as bending, torsion, shrinkage, expansion, etc. generated therein. It is installed on the upper surface of the pier 110 (or alternate) so as to.

In addition, the lower SRC girder 130 is manufactured in the form of a rectangular parallelepiped by reinforcement and concrete as shown in Figure 4, formed in a tapered shape at the center of the bottom in the axial direction back and forth, and a plurality of lower vertical steel pipes at equal intervals ( An insertion groove 135 having a square shape is formed to bury the lower horizontal steel pipe 133 in which the 131 is installed in the throttle direction, and the lower horizontal steel pipe 133 is seated in the insertion groove 135, and then the mortar has no shrinkage or The concrete is poured to protrude both ends of the lower horizontal steel pipe 133 and the upper portion of the lower vertical steel pipe 131, and the upper both ends are blocked out in the longitudinal direction to expose the lower loop reinforcing bars 137. At this time, the insertion groove 132 is provided with a spacer 139 for fixing the lower horizontal steel pipe 133.

The lower SRC girders 130 are manufactured by dividing the lower SRC girders into plural in the longitudinal direction according to the width of the truss bridge 100.

In addition, both ends of the lower horizontal steel pipe 133 and one end of the lower vertical steel pipe 131 is provided with a flange 160 to be bolted, the lower horizontal steel pipe 133 is a filling steel pipe is applied, the lower vertical steel pipe 131 The lower vertical steel pipe located at the outermost side of the) is exposed to reinforce the connecting portion when connected to the unit filling steel pipe truss girder 150. At this time, the reinforcing plate 161 is installed on the rear surface of the flange 160.

In addition, the lower loop reinforcing bar 137 is installed at the intersection position so that the adjacent lower SRC girder 130 and the overlapping chip joint with each other, the outermost lower SRC girder 130 is installed in the outermost block out only on one side (inner side) This is done and the lower loop rebar 137 is exposed.

In addition, the upper SRC girder 140 is formed in a shape symmetrical with the same size as the lower SRC girder 130, as shown in Figure 4 is produced in a rectangular parallelepiped form with reinforcement and concrete, a plurality of at equal intervals The upper horizontal steel pipe 141 is installed with the upper horizontal steel pipe 143 is embedded in the axial direction to protrude both ends of the upper horizontal steel pipe 143 and the lower portion of the upper vertical steel pipe 141, block the upper both ends in the longitudinal direction Lower loop rebar 145 is exposed.

The upper SRC girder 140 is manufactured by dividing the upper SRC girder into a plurality in the longitudinal direction according to the width of the truss bridge 100. At this time, the upper surface of the upper SRC girder 140 is used as the bottom plate.

In addition, both ends of the upper horizontal steel pipe 143 and one end of the upper vertical steel pipe 141 is provided with a flange 160 to be bolted, the upper horizontal steel pipe 143 is a filling steel pipe is applied, the upper vertical steel pipe 141 The upper vertical steel pipe located at the outermost side of the) is exposed to reinforce the connecting portion when connected to the unit filling steel pipe truss girder 150. At this time, the reinforcing plate 161 is installed on the rear surface of the flange 160.

In addition, the upper loop reinforcing bar 145 is installed in the intersection position so that the overlapping joint with the neighboring upper SRC girder 140, the upper SRC girder 140 is installed in the outermost block out only on the upper one side (inner side) This is done and the upper loop rebar 145 is exposed.

Subsequently, the unit filled steel pipe truss girder 150 includes a lower chord 151 formed in a straight line shape, an upper chord 153 installed in parallel with the lower chord 151, a lower chord 151 and an upper chord 153. It consists of four reinforcement 155 is installed between.

In addition, the unit filled steel pipe truss girder 150 is preferably formed in a pair of two pairs, it is also possible to interconnect the two pairs through a horizontal reinforcement (not shown) according to the selection.

In addition, the top plate 153 of the unit filled steel pipe truss girder 150 is formed with a bottom plate 155 on the upper surface.

In addition, the lower chord 151 of the unit-filled steel tube truss girder 150 and the end of the upper chord 153 are provided with flanges 160 of the same size installed in the lower SRC girder 130 and the upper SRC girder 140. The reinforcing plate 161 is provided on the rear surface thereof.

On the other hand, the point construction method of the filling steel pipe truss bridge using the SRC girder according to the present invention is provided with a guide device 170 to mount the upper SRC girder 140 to the lower SRC girder 130.

The guide device 170 includes a seating plate 171, an extension leg 173, and a hydraulic cylinder 175.

The seating plate 171 is formed of a metal material, and a through hole 172 into which the upper vertical steel pipe 141 of the upper SRC girder 140 is inserted is formed so that the upper SRC girder 140 is seated, and a center point in the width direction is formed. On both sides along the longitudinal direction. Here, the seating plate 171 is formed with an inclined guide protrusion 177 in the upper and lower portions of the through hole 172 so that the upper vertical steel pipe 141 of the upper SRC girder 140 is inserted and aligned in the right position, the upper SRC Reinforcing beams 179 such as I and H beams may be further installed on the bottom surface according to the load of the girder 140.

The extension legs 173 are formed by welding the coupling plates to both ends of the I and H beams, and a plurality of extension legs 173 are installed vertically on the bottom surface of the seating plate 171.

The hydraulic cylinder 175 is installed perpendicular to the lower portion of each extension leg 173 is fixed to the upper surface of the lower SRC girder 130. In this case, the length of the extension leg 173 and the hydraulic cylinder 175 may be spaced apart from the lower vertical steel pipe 131 in the lower vertical SRC girders 141 when the upper SRC girder 140 is seated. It is preferred to have a length.

Hereinafter, with reference to the accompanying drawings the method of constructing the point portion of the filled steel pipe truss bridge using the SRC girders according to the present invention will be described in detail.

Figure 6 is a process for explaining the point construction method of the filling steel pipe truss bridge using the SRC girders according to the present invention, Figures 7 to 13 illustrate the method of constructing the point portion of the filling steel pipe truss bridge using the SRC girders according to the present invention It is explanatory drawing for the following.

6 to 13, the point construction method of the filling steel pipe truss bridge using the SRC girder according to the present invention is SRC girder manufacturing process (S10), lower SRC girder integration process (S20), guide device installation process (S30) , The upper SRC girder installation process (S40), the upper SRC girder integration process (S50) and branch connection process (S60).

SRC girder manufacturing process-S10

First, the lower SRC girder 130, the upper SRC girder 140 and the unit filling steel pipe truss girder 150 is pre-fabricated in the factory (S10). In this case, the lower SRC girder 130 is manufactured in a state where the lower vertical steel pipe 131 and the lower horizontal steel pipe 133 are not embedded, and the upper SRC girder 140 is the upper vertical steel pipe 141 and the upper horizontal steel pipe ( 143) is manufactured in a buried state.

<< lower SRC girder integration process-S20 >>

Then, the lower SRC girder 130, the upper SRC girder 140 and the unit packed steel pipe truss girder 150 is transported to the site, and then installed on the upper surface of the pier 110 (or alternating) as shown in FIG. Each lower SRC girder 130 is lifted on the pedestal device 120 and mounted to be interviewed with each other. At this time, the pier 110 and the lower SRC girder 130 is temporarily fixed using a temporary device such as a steel bar.

Then, the non-shrink mortar or concrete is poured into the block-out site to integrate each lower SRC girder 130.

<< horizontal steel pipe installation process -S30 >>

When the integration of the lower SRC girder 130 is completed, the lower horizontal steel pipe 133 is installed in the insertion groove 135 of the lower SRC girder located in the outermost as shown in FIG. At this time, the spacer 139 for fixing the lower horizontal steel pipe 133 to the insertion groove 132 is installed at a predetermined interval.

<< horizontal steel pipe fixation process -S40 >>

When the installation of the lower horizontal steel pipe 133 is completed, as shown in FIG. 9, the guide device 170 is installed on the upper surface of the lower SRC girder 130 on which the lower horizontal steel pipe 133 is installed. The lower vertical steel pipe 131 is fixed to the lower horizontal steel pipe 131 by 170.

《Horizontal Steel Pipe Landfill Process-S50》

Then, as shown in FIG. 10, the bottom horizontal steel pipe 133 is embedded by pouring non-contraction mortar or concrete into the insertion groove 135 in which the lower horizontal steel pipe 133 is installed.

<< upper SRC girder installation process -S60 >>

When curing is completed and the lower horizontal steel pipe 133 is buried and fixed, as shown in FIG. 11, the guide device 170 is raised, and then the upper SRC girder 140 is lifted to the upper part of the guide device 170 to guide it. The upper vertical steel pipe 141 of the upper SRC girder 140 is inserted into the through hole 172 by the inclined guide protrusion 177 by being seated on the seating plate 171 of the device 170, and then the guide device 170. Lowers the hydraulic cylinder 175 of the upper SRC girder 140, the end of the upper vertical steel pipe 141 of the lower SRC girder 130, the end of the lower vertical steel pipe 131 of the interview and bolts to the flange 160 Tighten and join together.

<< upper SRC girder integration process-S70 >>

Subsequently, the installation of each upper SRC girder 140 is sequentially performed by repeating the horizontal steel pipe installation process (S30), the horizontal steel pipe fixing step (S40), the horizontal steel pipe embedding process (S50), and the upper SRC girder installation process (S60). When completed, as shown in FIG. 12, the guide device 170 is removed, and then the non-shrink mortar or concrete is poured into the block-out site to integrate each upper SRC girder 140.

<< branch connection process-S80 >>

When the integration of the upper SRC girder 140 is completed, the unit filled steel pipe truss girder 150 is lifted as shown in FIG. 13 and installed in the upper and lower SRC girders 140 and 130 in the axial direction, that is, the longitudinal direction. Next, the flanges provided at the lower chord 161 and the upper chord 163 of the unit filled steel pipe truss girder 150, respectively, the upper and lower horizontal steel pipes 143 of the upper and lower SRC girders 140 and 130. Bolted to the flange 160 provided at the end of 133.

Subsequently, a bottom plate is installed on the upper chord 163 of the unit-filled steel tube truss girder 150.

As those skilled in the art would realize, the described embodiments may be modified in various ways, all without departing from the spirit or scope of the present invention. It is to be understood, however, that the present invention is not limited to the specific forms referred to in the description, but rather includes all modifications, equivalents, and substitutions within the spirit and scope of the invention as defined by the appended claims. Should be.

110: pier 120: bridge device
130: lower SRC girder 140: upper SRC girder
150: unit filling steel pipe truss girder 160: flange
170: guide device

Claims (9)

It is manufactured in the form of a rectangular parallelepiped by reinforcing steel and concrete, and is formed in a tapered shape from the center of the bottom in the axial direction to the front and rear, and forms an insertion groove of a rectangular shape so that horizontal steel pipes having a plurality of vertical steel pipes are inserted at equal intervals. SRC girder fabrication process of dividing the upper SRC girder in the longitudinal direction to form a rectangular parallelepiped symmetrical with the lower SRC girder by cutting out the rebar in the longitudinal direction to expose the loop reinforcement; ;
A lower SRC girder integration process of lifting each of the lower SRC girders to an upper portion of the piers to be interviewed with each other, and integrating each of the lower SRC girders by pouring non-contraction mortar or concrete into the block-out portion;
A horizontal steel pipe installation step of installing the horizontal steel pipe in the insertion groove of any one of the lower SRC girders among the plurality of lower SRC girders;
A horizontal steel pipe fixing process of fixing the horizontal steel pipe by fixing the vertical steel pipe with the guide device after installing a guide device on an upper surface of the lower SRC girder in which the horizontal steel pipe is installed;
A horizontal steel pipe embedding step of embedding the horizontal steel pipe by pouring non-contraction mortar or concrete into the insertion groove in which the horizontal steel pipe is installed;
When curing is completed and the horizontal steel pipe is buried and fixed, the guide device is raised, and then the upper SRC girder is lifted to the upper part of the guide device and seated on the guide device, and then the guide device is lowered to the upper SRC girder. An upper SRC girder installation process of interviewing the end of the vertical steel pipe and the end of the vertical steel pipe of the lower SRC girder with each other;
An upper SRC girder integration process of integrating each of the upper SRC girders by removing the guide device and then placing non-shrink mortar or concrete on the block-out site when the installation of each upper SRC girder is completed; And
Upper chord, lower chord, unit filled steel tube truss girder consisting of a vertical reinforcement and yarn reinforcement is installed so as to be symmetrically spaced apart from each other in the longitudinal direction about the upper, lower SRC girders, respectively And a branch connection process for fixing the lower chord to the horizontal steel pipe of each of the upper and lower SRC girders. The method of claim 1,
The horizontal steel pipe,
Point construction method of the filling steel pipe truss bridge using SRC girders, characterized in that the filling steel pipe. The method of claim 1,
At both ends of the horizontal steel pipe and one end of the vertical steel pipe,
Method of construction of the point portion of the filled steel tube truss bridge using the SRC girders, characterized in that the flange is provided so that the bolt can be fastened. The method of claim 1,
The vertical steel pipe located at the outermost part of the vertical steel pipe,
Method of constructing the point portion of the filling steel pipe truss bridge using the SRC girder, characterized in that exposed to reinforce the connecting portion when connecting the unit filled steel pipe truss girder. The method of claim 1,
The loop rebar is
Point construction method of the filling steel pipe truss bridge using the SRC girders, characterized in that installed in the cross position so that the overlapping chip joints are made. The method of claim 1,
The guide device,
A mounting plate having a through hole into which the vertical steel pipe of the upper SRC girder is inserted so that the upper SRC girder is seated and having a central portion separated in the width direction;
A plurality of extension legs installed perpendicular to the bottom of the seating plate; And
Method of constructing the point portion of the filling steel pipe truss bridge using the SRC girders, characterized in that it consists of a plurality of hydraulic cylinders installed perpendicular to the lower portion of the extension leg is fixed to the upper surface of the lower SRC girder. The method of claim 6,
The seating plate,
Method of constructing the point portion of the filling steel pipe truss bridge using the SRC girder, characterized in that the inclined guide projections are formed in the upper and lower portions of the through-hole so that the vertical steel pipe of the upper SRC girder is inserted into the alignment. The method of claim 1,
Method of constructing the point portion of the filled steel tube truss bridge using the SRC girders, characterized in that the reinforcement beam is installed on the bottom surface according to the load of the upper SRC girders. The method of claim 1,
In the insertion groove,
Pointer construction method of the filling steel pipe truss bridge using the SRC girders, characterized in that the spacer for fixing the horizontal steel pipe is installed.

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