KR101591804B1

KR101591804B1 - the form unit for manufacturing bridge girder and the construction method of girder bridge using the same

Info

Publication number: KR101591804B1
Application number: KR1020150064661A
Authority: KR
Inventors: 이호형; 이완형
Original assignee: 이호형; 이완형
Priority date: 2015-05-08
Filing date: 2015-05-08
Publication date: 2016-02-18

Abstract

Provided is a mold unit for manufacturing a bridge girder. To manufacture a bridge girder (G), the mold unit comprises: two lower panels (110); two web panels (130); two haunch panels (150); two upper panels (170); and an end panel (190). Moreover, provided is a method for constructing a girder bridge using the mold unit for manufacturing a bridge girder. To construct a girder bridge using the mold unit for manufacturing a bridge girder (100), the method comprises: (1) a bridge girder manufacturing step; and (2) a bridge girder installations step.

Description

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a method of forming a girder bridge,

The present invention is for manufacturing a bridge girder (G) in which a slab and a girder are integrally formed. The upper panel corresponds to a radius of curvature of various wedges and operates in a tilting manner. And more particularly, to a die unit for fabricating a bridge girder that facilitates maintenance of the vertical portion of the end panel and a girder bridge construction method using the same.

1 is an embodiment of a girder bridge in which a conventional girder and a slab are combined.

In addition to those shown in FIG. 1, existing similar methods are various, and various techniques have been developed in which the cross-sectional shapes of the girders are I, T, U, V,

Figure 2 compares the conventional girder bridge of the present invention.

As shown in FIG. 2, there are the following common problems inevitably derived from the construction of a general PC concrete girder of a multi-column type.

It should be noted, however, that the numerical values set forth in FIG. 2 are illustrative only and do not all increase in the same increments or rates.

For all bridges, the straight-line bi-directional is -2% design standard, and the curve is 0 ~ 6%.

In the existing I-shaped section, the width of the upper flange is narrow (70cm) and the increase of the concrete is small. However, the width of the upper flange is increased (120cm) in the modified PSC-I section. In addition, in the case of the girder + slab integrated type, a further problem arises such as a further increase in width.

Recently, slab concrete molds have been replaced by PC concrete deck plates, which results in an increase in the amount of slab concrete.

Therefore, it is necessary to take measures to reduce the increase of the slab concrete by the slope.

For example, in the case of a girder + slab integrated type,

In the case of a straight line, since the slope of the slope is constant, the slope of the asymmetric slope can be produced by taking the slope into consideration when manufacturing the girder,

In bridges with curves or curves + straight lines, the slope of the slope can vary widely and should be considered.

Consideration of these problems can be accommodated even in a structure having a large cross section.

Therefore, in the girder bridges, the portion of the slab concrete is replaced with the complicated part by increasing the quantity of the slab concrete. However, when the integral bridges are replaced with concrete, the characteristics of the integral method disappear and the cost increases, complicated processes, complex structure analysis, Durability problems and so on.

Therefore, there are various prior arts related to the girder + slab composite bridge, but it is very rare that the actual construction is done because it needs to be supplemented to the site.

Of course, the girder + slab composite type is simple in terms of the tensile and load stages, and the non-composite fixed load stage (slab concrete installation) is omitted and the section of the pure girder position can be reduced, And maximization of bending stiffness by ideal arrangement of PS steel.

[Patent Document 1] Korean Patent No. 10-1442189 'PSC U girder bridge using a segment girder', September 22, 2014 [Document 2] Korean Patent No. 10-1470828 'PSC U Girder Bridge', December 09, 2014

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems of the related art.

The purpose of this is to provide a bridge unit for bridge girder construction which corresponds to the radius of curvature of various hatches and which corresponds to the slope of the slope and which minimizes the amount of concrete including required concrete, and the girder bridge construction method I want to.

In order to solve the above-mentioned technical problem, the present invention is to produce a bridge girder (G) in which a slab and a girder are integrally formed by placing a reinforcing bar and pouring concrete,

Two lower panels 110 installed opposite to the upper part of the pedestal B;

Two web panels 130 coupled to the upper end of the lower panel 110 and facing each other;

Two hinge panels 150 coupled to the upper end of the web panel 130 and having a curved surface from the lower end to the upper end and facing the upper end toward the outside;

Two upper panels 170, one end of which is coupled to the upper end of the hunting panel 150 and the other end of which is facing to the outside; And

An end panel 190 installed on the upper portion of the upper panel 170;

, &Lt; / RTI >

A length adjustable swing curvature control support 120 is fastened to the upper end of the web panel 130 and the upper panel 170,

Wherein the curvature of the hunging panel (150) is adjusted by adjusting the length of the hunting curvature adjusting support (120).

together,

The bridge girder G is manufactured by using the form unit 100 for forming the bridge girder so that the shear reinforcement RB is exposed at both ends of the bridge girder G,

(1) The shear reinforcement RB is exposed to the outside of the girder slab S and exposed to the outside of the other end of the girder slab S and the shear reinforcement RB-1 protruding outside the vertical line of the lower step, And a shear reinforcing bar (RB-2) that does not protrude outward to manufacture a plurality of bridge girders (G); And

(2) The plurality of bridge girders G are arranged in a row in one direction, and another bridge girder G is loaded on the shear reinforcement RB-2 of the bridge girder G installed at the installation site in advance, A bridge girder installing step in which the shear reinforcement RB-1 of the bridge girder G is lowered and engaged;

The present invention provides a method of constructing a girder bridge using a form unit for building a bridge girder.

According to the present invention, it is possible to manufacture a bridge girder having a precise dimension corresponding to the radius of curvature of various hatches and corresponding to the slope of the slab, minimize the amount of the concrete including the required concrete, and a girder bridge construction method using the same. to provide.

1 is an embodiment of a girder bridge in which a conventional girder and a slab are combined.
Figure 2 compares the conventional girder bridge of the present invention.
3 is a cross-sectional view of a molding unit for producing a bridge girder according to the present invention.
Fig. 4 is a conceptual view showing that the die unit for making a bridge girder of the present invention corresponds to the radius of curvature of various wedges and corresponds to a single gradient.
FIG. 5 illustrates various embodiments of a girder bridge manufactured using the formwork unit for making a bridge girder of the present invention.
6 is an embodiment of a girder bridge construction method using a formwork unit for making a bridge girder of the present invention.
7 is another embodiment of a girder bridge construction method using the formwork unit for making a bridge girder of the present invention.
Fig. 8 is a photograph of a generally used vertical stiffener and a horizontal stiffener.
9 is a detailed view of a hunting panel used in the present invention.
Fig. 10 shows the radius of curvature at the front end and the rear end in Fig.
Fig. 11 is a view of Fig. 9 from below.
12 is a front view of a bridge girder completed by the present invention.
Fig. 13 is a top view of Fig.
Fig. 14 is a perspective view of Fig. 12. Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1. Formwork unit for bridge girder construction (100)

3 is a sectional view of a molding unit for producing a bridge girder according to the present invention,

Fig. 4 is a conceptual view showing that the die unit for making a bridge girder of the present invention corresponds to the radius of curvature of various wedges and corresponds to a single gradient.

And FIG. 5 illustrates various embodiments of a girder bridge manufactured by using a form unit for producing a bridge girder of the present invention.

3, the die unit 100 for producing a bridge girder according to the present invention comprises:

(G) in which a slab and a girder are integrally formed by placing reinforcing bars and pouring concrete,

Two lower panels 110 installed opposite to the upper part of the pedestal B;

An end panel 190 installed on the upper portion of the upper panel 170;

, &Lt; / RTI >

The curvature of the hunting panel 150 is adjusted by adjusting the length of the hunting curvature adjusting support 120.

In FIG. 3, a red line indicates the boundaries of the panel members 110, 130, 150, and 170. As a matter of reference, the boundary line is a description part, and it can be integrally produced without dividing the boundary line in the manufacturing process, or the boundary line can be placed at another position.

The bridge girder (G), which is finally completed with the present invention, can be put into a field or a factory of a segment type, and can be manufactured by each method in consideration of the site condition, cost, process and quality.

As shown in Figure 4,

The hunging panel 150 forms a curved surface and the bridge girder G having various radii of curvature and dimensions can be manufactured by using the hunting curvature control support 120.

Fig. 8 is a photograph of a generally used vertical stiffener and a horizontal stiffener.

As shown in FIG. 8, a conventional form panel generally has a rib (RIB) formed on the outer surface of the panel by a vertical stiffener (VR) and a horizontal stiffener (HR) to reinforce vertical and horizontal rigidity.

The hunting panel 150, however,

A plate 151 having elasticity to form a curved surface;

A plurality of horizontal stiffeners HR for horizontally reinforcing the rear surface of the plate 151;

, &Lt; / RTI >

Since the plate 151 is not constrained by the vertical stiffener VR, various curvature deformations are possible.

The upper panel 170 and the upper panel 170 are connected to each other by bolts or welding and are formed of only a plate material (steel plate) and a horizontal reinforcing material HR without a vertical reinforcing material VR, It is possible to flexibly cope with the deformation of the upper panel 170 according to the size of the gradient.

As shown in FIG. 4, when the tilting of the upper panel 170 is tilting, the hatch panel 130 connecting the upper panel 170 and the web panel 130, The connecting member 130 of the two panels 170 and 130 serves as a hinge

In addition,

The inclination of the upper panel 170 must be deformed according to the single slope and the curvature change of the former is inevitable. For this purpose, the vertical stiffener VR of the hatch panel 150 is omitted and the horizontal stiffener (HR) is reinforced so that flexible curvature can be freely made. Since the length L of the circular arc formed by the hunting panel 150 is fixed as shown in FIG. 4, the curvature is adjusted by adjusting the hunting curvature adjusting support 120 so that the sectional size of the bridge girder G So that there is no loss.
9 is a detailed view of a hunting panel used in the present invention,
Fig. 10 shows the radius of curvature at the front end and the rear end in Fig.
Figure 11 is a view from Figure 9 below,
12 is a front view of a bridge girder completed by the present invention.
13 is a top view of FIG. 12,
Fig. 14 is a perspective view of Fig. 12. Fig.
Referring again to Figures 9-14,
As shown in Figures 9 and 10,
The hunging panel 150 of the present invention is configured such that the plate 151 is linearly bent from the front end A to the rear end B of the plate 151 due to the horizontal stiffener HR without being constrained by the vertical stiffener VR Since various curvature deformations are possible so that different radii of curvature can be obtained at the front end (A) and the rear end (B)
As shown in Figures 12-14,
The slope S of the uppermost girder of the finally completed bridge girder S can be continuously and variously changed in different slopes of the front end A and the rear end B. [

And the end panel 190 comprises an end vertical panel 193 and an end horizontal panel 195,

The end vertical panel 193 and the end horizontal panel 195 are connected to each other by a length adjustable end vertical adjustment support 160,

And adjusting the length of the end portion vertical adjustment support 120 allows the vertical portion of the end portion vertical panel 193 to be maintained.

In addition, the lower end of the end vertical panel 193 and the end horizontal panel 195 are connected to each other by a plate, and the vertical vertical stiffener VR is cut and diced to form the end vertical panel 193 and the end horizontal panel 195 It is preferable that the connecting plate serves as a hinge so as to be rotatable within a predetermined angle.

The combination of the upper panel (170) and the end panel (190)

(1) In order to keep the end of the girder slab (S) at the curved bridges fastened with bolts to allow sliding to fit the curve radius,

(2) In order to compensate for the shortage of the horizontal distance (upper width of the bridge girder (G)) as the upper panel (170) tilts due to the single slope,

The end panel 190 can freely move in the horizontal direction to adjust the width of the girder slab S.

A slip alignment support 140 is provided between the upper panel 170 and the lower panel 110,

The gradient of the upper panel 170 may be adjusted by adjusting the length of the single-crystal alignment support 140.

The scribble alignment support (140)

An inner kneader alignment support 142 installed to adjust the length between one end of the upper panel 170 and the lower panel 110; And

And an outer sheath alignment support 144 installed to adjust the length between the other end of the upper panel 170 and the lower panel 110,

The length of each of the inner and outer sheathing alignment supports 142 and 144 may be adjusted to vary the level of one end and the other end of the upper panel 170.

In this case, when the outer sheathing alignment support 144 is adjusted, the entire shearing force of the sheath S is adjusted by adjusting the inner sheathing alignment support 142, The thickness is determined.

Care must be taken because the outer circularly-curved alignment support 144 forms a connection surface between the girder slab S and another adjacent bridge girder G as a portion to be finestly installed.

2. Construction of girder bridges using form unit for bridge girder construction

Fig. 6 is an embodiment of a girder bridge construction method using a form unit for building a bridge girder according to the present invention.

The girder bridge construction method using the formwork unit for building a bridge girder of the present invention shown in FIG.

(1) As shown in FIG. 6, the shear reinforcement (RB) is exposed to the outside of the girder slab (S) at one end thereof, and the shear reinforcement (RB-1) A plurality of bridge girders G are divided into a plurality of bridge girders G and divided into shear reinforcing ribs RB-2, And

And a control unit.

Fig. 7 is another embodiment of a girder bridge construction method using a form unit for building a bridge girder according to the present invention.

In another embodiment of the girder bridge construction method using the formwork unit for building a bridge girder of the present invention shown in Fig. 7,

In addition to the embodiment of Figure 6,

(3) a reverse bridge girder installation step in which the bridge girder G is installed in the opposite direction to the bridge girder installation step (2); And

(4) Between two bridge girders (G) installed in both directions

A bridge girder G having a shear reinforcement RB-1 protruding outward from both ends of the girder slab S and protruding out of the vertical line of the lower step is large and the shear reinforcement RB-2 of the two bridge girders G (RB-1) is lowered and joined to the upper end of the shear reinforcement (RB-1);

And a control unit.

This construction method prevents interference at the time of installation of the shear reinforcement BR and constructs the joint points of the shear reinforcing bars BR so that they do not lie on the same vertical line as the joining points of the girder slabs G when engaged, And satisfies workability and structural stability at the same time.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

It is therefore intended that the appended claims cover such modifications and variations as fall within the true scope of the invention.

B: Base
G: Bridge girder
S: girder slab
VR: vertical stiffener
HR: Horizontal stiffener
RB, RB-1, RB-2: Shear reinforcement
100: Formwork unit for bridge girder construction
110: Lower panel
120: Hunt curvature adjustment support
130: web panel
140: Single-slope alignment support
142: inner side profile alignment support
144: Outer Side Gradient Alignment Support
150: HUNTING PANEL
151: plate
160: End vertical adjustment support
170: upper panel
190: end panel
193: end vertical panel
195: end horizontal panel

Claims

(G) in which a slab and a girder are integrally formed by placing reinforcing bars and pouring concrete,
Two lower panels 110 installed opposite to the upper part of the pedestal B;
Two web panels 130 coupled to the upper end of the lower panel 110 and facing each other;
Two hinge panels 150 coupled to the upper end of the web panel 130 and having a curved surface from the lower end to the upper end and facing the upper end toward the outside;
Two upper panels 170, one end of which is coupled to the upper end of the hunting panel 150 and the other end of which is facing to the outside; And
An end panel 190 installed on the upper portion of the upper panel 170;
, &Lt; / RTI >
A length adjustable swing curvature control support 120 is fastened to the upper end of the web panel 130 and the upper panel 170,
The curvature of the hunting panel 150 is adjusted by adjusting the length of the hunting curvature adjusting support 120,
The hunting panel (150)
A plate 151 having elasticity to form a curved surface; And
A plurality of horizontal stiffeners HR for horizontally reinforcing the rear surface of the plate 151;
, &Lt; / RTI >
The plate 151 is linearly maintained from the front end A to the rear end B of the plate 151 due to the horizontal reinforcement HR without being constrained by the vertical reinforcement VR, B), a variety of curvature deformations are possible so that different curvature radii can be obtained.

The method of claim 1,
The end panel 190 is comprised of an end vertical panel 193 and an end horizontal panel 195,
The end vertical panel 193 and the end horizontal panel 195 are connected to each other by a length adjustable end vertical adjustment support 160,
Wherein the end vertical support (160) is adjustable in length to maintain the vertical of the end vertical panel (193).

3. The method according to claim 1 or 2,
A slip alignment support 140 is provided between the upper panel 170 and the lower panel 110,
Wherein a slope of the upper panel (170) is adjusted by adjusting a length of the sloping alignment support (140).

4. The method of claim 3,
The scribble alignment support (140)
An inner kneader alignment support 142 installed to adjust the length between one end of the upper panel 170 and the lower panel 110; And
And an outer sheath alignment support 144 installed to adjust the length between the other end of the upper panel 170 and the lower panel 110,
Wherein the level of the one end of the upper panel (170) is different from the level of the other end of the upper panel (170) by adjusting the lengths of the inner and outer sheathing alignment supports (142, 144) 100).

delete

A bridge girder (G) is manufactured by using the form unit (100) for producing a bridge girder according to claim 1 or 2 so that a shear reinforcement (RB) is exposed at both ends of the bridge girder (G)
(1) The shear reinforcement RB is exposed to the outside of the girder slab S and exposed to the outside of the other end of the girder slab S and the shear reinforcement RB-1 protruding outside the vertical line of the lower step, And a shear reinforcing bar (RB-2) that does not protrude outward to manufacture a plurality of bridge girders (G); And
(2) The plurality of bridge girders G are arranged in a row in one direction, and another bridge girder G is loaded on the shear reinforcement RB-2 of the bridge girder G installed at the installation site in advance, A bridge girder installing step in which the shear reinforcement RB-1 of the bridge girder G is lowered and engaged;
Wherein the girder bridges are formed on the girder bridges.

The method of claim 6,
(3) a reverse bridge girder installation step in which the bridge girder G is installed in the opposite direction to the bridge girder installation step (2); And
(4) Between two bridge girders (G) installed in both directions
A bridge girder G having a shear reinforcement RB-1 protruding outward from both ends of the girder slab S and protruding out of the vertical line of the lower step is large and the shear reinforcement RB-2 of the two bridge girders G (RB-1) is lowered and joined to the upper end of the shear reinforcement (RB-1);
Wherein the girder bridges are formed on the girder bridges.