KR101779959B1 - Steel box girder maintained height and reinforced rigidity, and method for constructing thereof - Google Patents

Steel box girder maintained height and reinforced rigidity, and method for constructing thereof Download PDF

Info

Publication number
KR101779959B1
KR101779959B1 KR1020150133815A KR20150133815A KR101779959B1 KR 101779959 B1 KR101779959 B1 KR 101779959B1 KR 1020150133815 A KR1020150133815 A KR 1020150133815A KR 20150133815 A KR20150133815 A KR 20150133815A KR 101779959 B1 KR101779959 B1 KR 101779959B1
Authority
KR
South Korea
Prior art keywords
reinforcing member
reinforcing
flange
girder
auxiliary
Prior art date
Application number
KR1020150133815A
Other languages
Korean (ko)
Other versions
KR20170035128A (en
Inventor
박상현
Original Assignee
박상현
주식회사 길교이앤씨
위드현 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 박상현, 주식회사 길교이앤씨, 위드현 주식회사 filed Critical 박상현
Priority to KR1020150133815A priority Critical patent/KR101779959B1/en
Publication of KR20170035128A publication Critical patent/KR20170035128A/en
Application granted granted Critical
Publication of KR101779959B1 publication Critical patent/KR101779959B1/en

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
    • E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
    • 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
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00—Material constitution of bridges
    • E01D2101/20—Concrete, stone or stone-like material
    • E01D2101/24—Concrete
    • E01D2101/26—Concrete reinforced
    • E01D2101/268—Composite concrete-metal

Landscapes

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

Abstract

The present invention relates to a girder girder with improved section rigidity while maintaining the girder height and a method of manufacturing the girder girder. In a girder girder having a lower flange, a lower portion and an upper flange, And a reinforcing member fixed to the lower surface in the longitudinal direction, the reinforcing member having a first reinforcing member having a "T" shape, a second reinforcing member having a "T" shape, And a third reinforcement member having a " C "shape fixed to the first reinforcement member.

Description

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a girder girder having improved rigidity and a method of manufacturing the same,

More particularly, the present invention relates to a girder-type girder, and more particularly, to a girder girder which is provided with a reinforcing member as a base on a lower flange and selectively installed on an upper flange so as to increase the cross-sectional rigidity of the girder without changing the shape of the girder, The present invention relates to a girder girder with improved rigidity and a method for manufacturing the girder girder.

Generally, bridges are constructed so that vehicles can travel more easily in a river, sea, or valley, including piers, alternations, girders, and bottom plate slabs.

Among these bridges, a bridge having a girder type girder is constructed such that a girder type girder of a closed cross section is positioned between the bridge pier and the bottom plate. Here, the girder type girder is advantageous in that the shape of the girder is a closed cross section, the appearance is good, the ability to resist bending is excellent, and the torsional rigidity is large. Therefore, it is widely used for bridges that are important for beauty in order to harmonize the curved bridge or the highway of the city center and the surrounding sculptures.

In this case, since the girder girder is manufactured using a thin steel plate having a large slenderness ratio, the compressed flange or the buckling plate may be destroyed by local buckling. Therefore, it is very important in the design of the girder girder to prevent the local buckling that may occur in the thin plate element before the bending strength that can be exhibited by the girder girder is reached. As a result, reinforcing members can be installed in the transverse direction and the longitudinal direction mainly by increasing the strength against the local buckling of each flange in the girder girder, that is, the sectional rigidity.

For example, as shown in Fig. 1, the structure of the girder type girder is formed by assembling the lower flange 10, the both webs 11 and the upper flange 12 made of steel plates to form a box- And the longitudinal direction reinforcing member 14 and the lateral direction reinforcing member 13 are provided so as to cross each other on the inner surface. At this time, since the longitudinal reinforcing member 14 and the transverse direction reinforcing member 13 are disposed on the inner surfaces of the flanges 10, 11 and 12 in a crossed manner, the transverse reinforcing member 13 is provided with the longitudinal reinforcing members 14 Through holes 15 for passing through the through holes 15 are formed.

However, this through-hole 15 has to process roughly 1,000 or so in the case of a medium-scale bridge (for example, a bridge having two continuous-type girders having two bridges of a length of about 100 m) There is a problem that not only the time for manufacturing the girder type girder is prolonged according to the processing, but also a huge manufacturing cost is lost due to the cut steel sheet.

Meanwhile, in order to increase the strength corresponding to the local buckling occurring in the girder girder, various measures such as increasing the sectional rigidity of the lower flange are required.

Korean Registered Patent No. 10-1006545 (2011.01.07 Announcement) Korean Patent No. 10-0943823 (Bulletin of Feb. 25, 2010) Korean Patent No. 10-0947306 (Bulletin of Mar. 16, 2010) Korean Registered Patent No. 10-0650158 (Announcement of Nov. 1906) Korean Patent No. 10-0545490 (Announcement of January 24, 1906)

It is an object of the present invention, which is devised to solve the problems and needs, to provide a girder girder having a reinforcing member provided on a lower flange so that a center axis of a girder is positioned below a center of a girder, The present invention provides a girder type girder having a section having a high rigidity and a section having rigidity such that the girder is improved in cross-sectional rigidity as well as rigidity of the girder without change in girth.

In order to attain the above object, the present invention provides a girder type girder having an improved sectional rigidity while maintaining a girder height according to the present invention is a girder girder having a lower flange, a lower portion and an upper flange, And a reinforcing member fixed between the adjacent reinforcing members and fixed in contact with the reinforcing member, wherein the reinforcing member is reinforced by a first reinforcing member having a "T" shape, .

The auxiliary reinforcement member is a first auxiliary reinforcement member having a convex or a plate shape on the front surface and is characterized in that the fixing shape is changed according to the position where the reinforcing member is attached to the upper surface or the lower surface of the upper flange or the lower flange do.

The auxiliary reinforcement member may further include a second auxiliary reinforcement member disposed across the reinforcing member and the abdomen to be fixed to abut the reinforcement member.

The second auxiliary reinforcement member is shaped like a letter "B" on the front face, and the fixing shape is changed according to the position where the reinforcing member is attached to the upper surface or the lower surface of the lower flange.

At least one of the reinforcing member and the auxiliary reinforcement member is provided with at least one through hole at one side of the side surface and the upper surface so that the individual spaces generated by the installation of the reinforcing member and the auxiliary reinforcing member for pouring concrete are communicated.

At least one of the reinforcement member, the first auxiliary reinforcement member, and the second auxiliary reinforcement member is disposed to penetrate at least one of the longitudinal reinforcement and the transverse reinforcement embedded in the bottom plate slab when disposed on the upper surface of the upper flange .

The first reinforcing plate may be fixed to the upper surface of the reinforcing members, and when the reinforcing concrete is poured, a plurality of punched holes may be formed to allow the concrete to pass therethrough. Processed.

And the width of the upper flange is equal to or longer than the width of the lower flange to improve the section rigidity of the upper portion.

At this time, the upper flange is one integral type which is connected to both side portions when viewed from the width direction, or a pair of separate types which are fixed to both side portions and separated from each other.

Further, a "T" -shaped auxiliary flange provided on the upper side of the upper portion of the upper flange so as to be embedded in the bottom plate slab placed on the upper portion of the upper flange is further provided.

Meanwhile, a girder girder having improved section rigidity while maintaining a girder height according to a modification of the present invention is a girder girder having a lower flange, a lower portion and an upper flange, wherein at least one of an upper surface and a lower surface of the lower flange or the upper flange Wherein the reinforcing member is a third reinforcing member of a " C "shape having a fixed opening side or a second reinforcing member of a" T "shape.

In addition, according to another modification of the present invention, a girder type girder with improved sectional rigidity while maintaining a girder is a girder type girder having a lower flange, a stomach portion and an upper flange, wherein at least one of the upper surface and the lower surface of the lower flange or the upper flange Wherein the reinforcing member includes a third reinforcing member of a " C "character shape to which the opening side is fixed, and a reinforcing member which is fixed to the opening side while receiving the third reinforcing member. A "2a" reinforcing member having a shape of "Ø" with an open side fixed thereto, a "2a" member having an opening side fixed to the lower flange or the upper flange while receiving the 2a reinforcing member Shaped reinforcement member.

In addition, according to still another modification of the present invention, a girder type girder having an improved sectional rigidity while maintaining a form height is a girder type girder having a lower flange, an abdomen and an upper flange, wherein at least one of an upper surface and a lower surface of the lower flange or the upper flange And a reinforcing member fixed in one direction in the longitudinal direction, wherein the reinforcing member has a third reinforcing member having at least one "C" shape having an open side fixed thereto, A first reinforcing member having at least one "T" shape fixed on one surface thereof, a third reinforcing member having at least one "C" shape having an opening side fixed thereto, A "T" shape is formed on the upper surface of the lower flange so as to be embedded in the bottom plate slab placed on the upper portion of the upper flange, or a third c-reinforcing member having at least one plate- And, the first reinforcing members provided on the upper surface of the upper flange the "l" character shape, in which the characterized in that the two sides perpendicular or flared portion forms a certain slope of the third reinforcing member.

In addition, according to still another modification of the present invention, a girder type girder having an improved sectional rigidity while maintaining a form height is a girder type girder having a lower flange, an abdomen and an upper flange, wherein at least one of an upper surface and a lower surface of the lower flange or the upper flange Wherein the reinforcing member is a " T "-shaped or " I" -shaped first reinforcing member provided on the upper surface of the upper flange, A third reinforcing member having a " C "shape whose opening side is fixed toward the lower flange, a " C" -shaped third reinforcing member having an open side fixed to the second reinforcing member, A " C "-shaped third reinforcing member having an open side fixed to receive the 3a reinforcing member, a " 2" reinforcing member having an open side fixed thereto, A second b-reinforcing member having a shape of "?" Having a fixed side, and a plate- Characterized in that provided by mixing one or two or more of jaedeul.

Further, according to still another modification of the present invention, a girder girder having improved sectional rigidity while maintaining a girder height is a girder girder having a lower flange, an abdomen, and an upper flange, And the width direction length of the upper flange is longer than the width direction length.

The reinforcing member is longitudinally fixed to at least one of the upper surface and the lower surface of the lower flange or the upper flange, and the reinforcing member is a first reinforcing member having a "T" shape.

Here, the upper flange has a structure in which the length in the width direction is longer than the width direction in the width direction of the lower flange, an integral structure in which both side portions are connected by looking in the width direction, a pair of mutually separated And a separate type structure.

Further, a "T" -shaped auxiliary flange is provided on the upper surface of the upper flange and on the upper extension of the abdomen.

These modifications include a first auxiliary reinforcing member having a convex or plate-like shape on the front face and fixed to abut against the reinforcing member across the front reinforcing members, A first auxiliary reinforcing member disposed across the upper and lower abdomen portions and having an engaging hole through which the reinforcing member passes; And the first auxiliary reinforcing member and the first auxiliary reinforcing member are provided either singly or in combination.

And a second auxiliary reinforcing member disposed across the reinforcing member and the abdomen to be fixed by abutting against the reinforcing member.

The second auxiliary reinforcement member is shaped like a letter "B" on the front face, and the fixing shape is changed according to the position where the reinforcing member is attached to the upper surface or the lower surface of the lower flange.

At least one of the reinforcement member and the auxiliary reinforcement member has a through hole at least on one side of the side surface and the upper surface so that the individual spaces generated by the installation of the reinforcement member and the auxiliary reinforcement member for pouring concrete are passed, And a reinforcing bar or a transverse reinforcing bar is provided so as to penetrate therethrough.

The first reinforcing plate is fixed to the upper surface of the reinforcing members, and when the reinforcing concrete is poured, a plurality of punched holes are formed in the first reinforcing plate to allow the concrete to pass therethrough. Processed.

Further, the present invention is further characterized by a second reinforcing plate having both ends fixed to upper portions of both side belly portions on the lower side of the upper flange, or both ends fixed to lower portions of both side belly portions on the upper side of the lower flange.

And a fifth reinforcing member fixed between the fourth reinforcing members or between the fourth reinforcing member and the abdomen, the fourth reinforcing member being a plate-shaped fourth reinforcing member provided on the lower surface of the upper flange in the longitudinal direction of the girder girder; And at least one of them is further provided.

A method of manufacturing a girder type girder having improved sectional rigidity while maintaining a girder height according to the present invention includes the steps of: (S10) installing an upper flange, a lower flange, (S20) of installing a reinforcing member on at least one of the upper surface and the lower surface of the upper flange or the upper flange, wherein the reinforcing member is provided in a shape of "T" or " A third reinforcement member having a "U" -shaped first reinforcement member, a "second" reinforcement member, an "③" third reinforcement member having an open side fixed toward the lower flange, A third reinforcing member of a "C" shape having an open side fixed to receive the reinforcing member 3a of the fixed "C" shape and the third reinforcing member, a " A 2a reinforcement member, a " twist "shape having an open side fixed to receive the 2a reinforcement member The second b-reinforcing member, and the plate-shaped third c-reinforcing members are provided singly or in combination.

In addition, step 30 (S30) of installing a "reinforcing" or plate-like first auxiliary reinforcing member across the reinforcing members; (Step S30 ') in which a first `auxiliary reinforcing member having a coupling hole through which the reinforcing member passes is installed across the both side abdominal regions on the front face; Step S31 (S31) of installing a second auxiliary reinforcing member between the reinforcing member and the abdomen or on the outer surface of the outermost reinforcing member; A thirty-second step (S32) of installing a plate-shaped fourth reinforcing member on the lower surface of the upper flange if the reinforcing member is not provided on the lower surface of the upper flange; A step (S33) of installing a plate-like fifth reinforcing member between the fourth reinforcing members or between the fourth reinforcing member and the abdomen; A thirteenth step (S34) of placing and fixing a first reinforcing plate provided with a concrete pouring hole on the upper surface of the reinforcing member; A thirteenth step (S35) of fixing a second reinforcing plate across upper and lower portions of the abdomen to both upper and lower abdomen portions, and a forty-second step (S40) of placing reinforcing concrete at a height enough to bury the reinforcing members; And further comprising one step.

As described above, according to the present invention, the first and second reinforcing members, the first reinforcing member, and the first and second auxiliary reinforcing members are provided on the upper surface or the lower surface of the lower flange, So that the center of gravity of the center of gravity can be positioned substantially on the center of the mold when the bridge is manufactured. This makes it possible to increase the section rigidity of the girders without changing the moldings and to improve the integral behavior.

Further, by fixing the first auxiliary reinforcing member or the second auxiliary reinforcing member to the first reinforcing member simply by welding, it is possible to eliminate the occurrence of the waste steel due to the processing of the through hole as in the prior art, And the cost can be reduced.

In addition, by providing the first reinforcing member and the first and second auxiliary reinforcing members selectively on the upper surface or the lower surface of the upper flange, it is possible to increase the rigidity and integral behavior of the upper portion as well as the lower portion of the girder.

Further, by making the sectional rigidity to be larger than that of the prior art with respect to the same steel amount, it is possible to eliminate the conventional longitudinal reinforcing bars or transverse reinforcing bars, if necessary, so that the material cost can be reduced.

Also, since the reinforced concrete flows through the through holes provided in the first reinforcing member and the first and second auxiliary reinforcing members to the neighboring individual spaces, air can be introduced into the individual spaces at the time of pouring, There is an effect that can be removed.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description, serve to further the understanding of the technical idea of the invention, It should not be interpreted.
1 is a side cross-sectional view showing a conventional girder type girder.
2 is a perspective view showing a girder girder with improved sectional rigidity while maintaining the girder height according to the first embodiment of the present invention.
3 is an enlarged view of the first reinforcing member and the first and second auxiliary reinforcing members shown in FIG.
4 is a front view of the first auxiliary reinforcing member shown in Fig.
5 is a front view of the second auxiliary reinforcement member shown in Fig.
FIG. 6 is a front view showing a state in which reinforced concrete is installed in the girder girder shown in FIG. 2. FIG.
Figs. 7 to 17 are front views showing the second to eleventh embodiments of Fig. 2; Fig.
18 to 24 are views showing a modified example of the first and second reinforcing members shown in Fig.
25 to 29 are views showing a modified example of the third reinforcing member shown in Fig.
30 is a view showing a modified example of the second reinforcing member shown in Fig.
Figs. 31 to 34 are views showing an example in which the first reinforcing member shown in Fig. 2 and the third reinforcing member shown in Fig. 20 are combined and modified.
35 is a process drawing showing a manufacturing method of the girder type girder of FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the detailed description of known functions and configurations incorporated herein will be omitted when it may unnecessarily obscure the subject matter of the present invention.

<Configuration>

2 is a perspective view showing a girder girder with improved sectional rigidity while maintaining the girder height according to the first embodiment of the present invention. 3 is an enlarged view of the first reinforcing member and the first and second auxiliary reinforcing members shown in FIG. 4 is a front view of the first auxiliary reinforcing member shown in Fig. 5 is a front view of the second auxiliary reinforcement member shown in Fig. FIG. 6 is a front view showing a state in which reinforced concrete is installed in the girder girder shown in FIG. 2. FIG.

As shown in FIGS. 2 and 3, the girder girder having improved sectional rigidity according to the first embodiment of the present invention includes upper flange 100, abdomen 110, lower flange 120, Member, and a supplementary reinforcement member. Here, the reinforcing member may be provided by mixing one or more of the first reinforcing member 130, the second reinforcing member 131, and the third reinforcing members 132 described below. In addition, the auxiliary reinforcement member is provided to further improve the section rigidity while raising the fixing force of the reinforcement member. The first auxiliary reinforcement member 140 and the second auxiliary reinforcement member 150, which will be described later, Or both of them may be used in combination, and the function of the reinforcing member may be performed instead of the reinforcing member by installing the reinforcing member alone while excluding the reinforcing member. Hereinafter, the reinforcing member and the auxiliary reinforcement member, which are features of the present invention, are members for increasing the rigidity of the lower section of the girder through the coupling structure. A brief description will be given. In the following, the width direction and the longitudinal direction are the left / right direction and the forward / backward direction of the girder girder in Fig.

The upper flange 100 is a member for supporting a bottom plate slab 10 (see Fig. 10) placed on the upper side. The upper flange 100 is formed in a plate shape and is provided with abdomen portions 110 disposed on both lower sides of the lower surface thereof. A "T" -shaped auxiliary flange 101 shown in FIG. 12 may be provided on the upper extension of the abdomen 110 on the upper surface of the upper flange 100. That is, the auxiliary flange 101 can be installed even when the upper flange 100 is in the form of a single plate as shown in FIG. 6, and can be formed as a pair so as to exist only on a part of the abdomen 110, It can also be installed. The auxiliary flange 101 may be the same or different in size to the first reinforcing member 130.

The abdomen (110) is fixed on both sides of the upper flange (100) and the lower flange (120), which are arranged in a face-to-face relationship with each other.

The lower flange 120 is positioned in the form of a panel facing the upper flange 100, and the lower end of the abdomen 110 is fixed to both side portions.

When the reinforcing member is the first reinforcing member 130, at least one of the first reinforcing member 130 is installed on the upper surface of the lower flange 120 in the longitudinal direction and the width direction, as shown in FIGS. The first reinforcing member 130 preferably has a "T" shape and may be a "1" shape. Here, the first reinforcing members 130 are preferably one in the longitudinal direction, and two or more of the first reinforcing members 130 may be coupled to each other. In addition, at least one first through-hole (not shown) may be formed on at least one of the side surface and the upper surface of each first reinforcing member 130 so that the space partitioned by the neighboring first reinforcing members 130 can pass therethrough. 130a. When the reinforcing concrete 160 (see FIG. 6) is laid in the first through hole 130a for embedding the first reinforcing member 130 in the elevator type girder at the bridge pier when the bridge is manufactured, the fluidity of the concrete So that the concrete can easily flow into the neighboring spaces partitioned by the first reinforcing member 130. At this time, the height of the reinforced concrete 160 may be lower than or equal to the height of the reinforcing member and the auxiliary reinforcing member, and the height of the reinforcing concrete 160 may be higher. The transverse reinforcement 12 can be embedded in the reinforced concrete 160 so that the transverse reinforcement 12 can be embedded in the reinforcing member including the first reinforcing member 130 and the embodiment described later. do. The reinforced concrete 160 can improve the integral behavior between the first reinforcing member 130 and the lower flange 120 and the abdomen 110 while maximizing the rigidity of the lower section of the girder girder.

The auxiliary reinforcement member can make the maximum height lower, the same or higher than the reinforcing member. At least one first auxiliary reinforcing member 140, which is a supplementary reinforcing member, is disposed across the at least two first reinforcing members 130, which are adjacent to each other in the width direction, at regular intervals in the longitudinal direction . At this time, the first auxiliary reinforcing member 140 is joined to both opposite sides of the first reinforcing member 130 at the opposite ends. The shape of the first auxiliary reinforcement member 140 may be a substantially convex shape in a front view or a plate shape. Here, the joint is preferably welded. In addition, a plurality of first auxiliary reinforcement members 140 are provided at regular intervals in the longitudinal direction, thereby forming a plurality of individual spaces partitioned by the first auxiliary reinforcement members 140 and the first reinforcement members 130 do. At least one second through hole (not shown) may be provided in the first auxiliary reinforcement member 140 so that the individual spaces can communicate with each other. The second through-hole may have a substantially circular shape or a substantially semi-elliptical shape with a bottom open, or may have various other shapes. Of course, the second through hole may have the same shape as the first through hole 130a, or may have another shape.

The second auxiliary reinforcing member 150 is disposed between the first reinforcing member 130 and the abdomen 110 adjacent to each other in the width direction, and at least one of the second auxiliary reinforcing members 150 is installed at a predetermined interval in the longitudinal direction. At this time, the second auxiliary reinforcement member 150 is joined to both opposite sides of the abdomen 110 with the first reinforcing member 130 having both ends thereof. Therefore, the second auxiliary reinforcement member 150 may be in the form of a plate, or may have a substantially "b" shape in which the upper portion of the first reinforcing member 130 on the substantially plate-like shape is lower than the upper portion of the other side, Lt; / RTI &gt; Here, the joint is preferably welded. A plurality of second auxiliary reinforcement members 150 are provided in the longitudinal direction at regular intervals, thereby providing a plurality of individual spaces partitioned by the second auxiliary reinforcement members 150 and the abdomen portions 110. At least one third through hole (not shown) may be provided in the second auxiliary reinforcement member 150 so that the individual spaces can communicate with each other. The third through-hole may have a substantially circular shape or a substantially semi-elliptical shape with a bottom open, and may have various other shapes. Of course, the third through hole may have the same shape as the first through hole 130a or the second through hole, or may have another shape. Accordingly, when the concrete is poured into a plurality of individual spaces, concrete can easily flow into the individual spaces adjacent to each other through the first through hole 130a, the second through hole and the third through hole, It is possible to prevent the reinforcing concrete 160 from being partially filled in the individual space by the air introduced when the reinforcing concrete 160 is laid.

The first reinforcement member 130, the first auxiliary reinforcement member 140 and the second auxiliary reinforcement member 150 may be fixed to the lower flange 120 in order to increase the rigidity of the lower section of the girder girder . Further, only the first reinforcing member 130 and the first auxiliary reinforcing member 140 may be provided, or only the first reinforcing member 130 and the second auxiliary reinforcing member 150 may be provided, Both the first auxiliary reinforcement member 130 and the second auxiliary reinforcement member 150 may be installed. 6, partition walls (not shown) are provided at both ends of the area where the reinforced concrete 160 is installed, and a height at which the first reinforcing member 130 is buried in the area After the concrete is poured, it can be cured. Accordingly, the center axis of the girder can be positioned at the lower part of the girder due to the addition of the reinforcing concrete 160 as well as the first reinforcement member 130 and the first and second auxiliary reinforcement members 140 and 150, The rigidity can be remarkably increased.

In order to improve the sectional rigidity of the girder girder, the height of the abdomen is increased or the thickness of the upper flange 100 or the lower flange 120 is increased, 1 structure in which the first reinforcing member 130 and the first and second auxiliary reinforcing members 140 and 150 are installed. Therefore, due to the characteristics of the present invention, a greater section rigidity can be obtained than by increasing the height of the abdomen, that is, by increasing the profile height or thickening the upper flange 100 or the lower flange 120 without increasing the thickness. Further, when the girder girder is manufactured with the same sectional rigidity, the amount of steel required for the girder girder of the present invention is reduced. In addition, when the girder girder is manufactured with the same amount of steel, the girder girder of the present invention has a larger sectional rigidity, so that the girder girder can be further distanced from the long girder.

The first reinforcement member 130 and the first and second auxiliary reinforcement members 140 and 150 may be installed on all or a part of the section of the momentum when the bridge is a bridge having a small diameter. You can install it on some. Of course, in order to increase the section stiffness regardless of the short diameter and the guide, it is possible to install at one or more portions of the moment section and the moment section.

<Examples>

Figs. 7 to 17 are front views showing the second to eleventh embodiments of the present invention. Fig.

First, the second embodiment of the girder type girders shown in Figs. 7 and 8 includes a first reinforcing member 130 and a second reinforcing member 130. The first reinforcing member 130 has a first reinforcing member 130 and a second reinforcing member 130, Additional plates 170 may be further provided. The first reinforcing plate 170 is installed in the space defined by the first reinforcing member 130 and the first auxiliary reinforcing member 140 and the first auxiliary reinforcing member 150 and the second auxiliary reinforcing member 150, A plurality of pouring holes 171 may be provided. The first reinforcing plate 170 may be welded to the abdomen 110 at both ends thereof and may have a plurality of fastening holes (not shown) to be screwed to the first reinforcing member 130. The first reinforcing member 130 and the first auxiliary reinforcing member 140 and the second auxiliary reinforcing member 150 and the abdomen portions 110 are formed of the first reinforcing plate 170, It is possible to further improve the section rigidity of the lower portion of the girder.

9 includes a first reinforcing member 130 and first and second auxiliary reinforcing members 140 and 150 (see FIG. 9) on the upper surface of the lower flange 120 and the lower surface of the upper flange 100, ) May be installed. Of course, only the first reinforcing member 130 and the first auxiliary reinforcing member 140 may be provided on the lower surface of the upper flange 100, and only the first reinforcing member 130 and the third auxiliary reinforcing member 150 may be installed .

10, the first reinforcing member 130 and the first and second auxiliary reinforcement members 140 and 150 are installed on the upper surface of the lower flange 120, and the upper flange 100 And the first reinforcing member 130 is disposed on the upper side of the upper portion of the abdominal region 110. [ The first reinforcing member 130 fixed to the upper flange 100 is buried in the bottom plate slab 10 together with the longitudinal reinforcing bars 11 and the transverse reinforcing bars 12. The first reinforcing member 130 fixed to the upper flange 100 may be made higher than the first reinforcing member 130 fixed to the lower flange 120 according to the height of the bottom plate slab 10 .

11, the first reinforcing member 130 and the first and second auxiliary reinforcing members 140 and 150 are installed on the upper surface of the lower flange 120. In this embodiment, At this time, the shape of the upper flange 100 is a shape existing only on a part joined to the abdomen 110. That is, as compared with FIG. 2, there is a difference in the shape change of the upper flange 100. Therefore, the sectional rigidity of the upper portion of the girder can be maintained or improved while reducing the amount of steel of the upper flange 100.

The sixth embodiment of the elevator type girder shown in Fig. 12 is a top surface of the top flange 100 changed in shape in the fifth embodiment of Fig. 11, and a "T" A flange 101 is provided. Also, the upper flange 100 is formed in a pair so that the shape of the upper flange 100 is present only on a part joined to the abdomen 110. Accordingly, the sectional rigidity of the upper portion of the girder can be obtained, while the amount of steel of the upper flange 100 is reduced.

The eleventh embodiment of the girder girder shown in Fig. 13 is similar to that of the first embodiment shown in Fig. 2 except that the upper portion of the upper flange 100 and the upper portion of both side portions 110 are fixed A plate 180 is provided. The first reinforcing member 130 and the first and second auxiliary reinforcing members 140.150 improve the sectional rigidity of the lower portion on the upper surface of the lower flange 120 and the lower cross- Rigidity is improved.

14, the second reinforcing plate 180 in the embodiment of FIG. 13 is provided on the lower side of both side belts 110 on the upper side of the lower flange 120, And both ends are fixed. Therefore, the sectional rigidity of the lower portion is further improved by the first reinforcing member 130, the first and second auxiliary reinforcing members 140 and 150, and the second reinforcing plate 180.

In addition, the ninth embodiment of the elevator type girder shown in Fig. 15 is made such that the width direction length of the upper flange 100 is longer than the width direction length of the lower flange 120 in order to improve the section rigidity of the upper portion. Of course, it is also possible to improve the sectional rigidity of the upper flange 100 and to provide the first flange 120 with the first reinforcing member 130 and the first and second auxiliary reinforcing members 140 and 150, Can be improved. It is needless to say that the ninth embodiment can be applied to all other embodiments.

16, the first reinforcing member 130 and the first and second auxiliary reinforcing members 140 and 150 are disposed on the lower surface of the lower flange 120 and the upper surface of the upper flange 100, It is installed in two places. A plurality of first reinforcing members 130 and first and second auxiliary reinforcing members 140 and 150 fixed to the upper surface of the upper flange 100 are disposed between the extended lines of the two side belts 110. Of course, the second and third reinforcing members 140 and 150 are installed so that the longitudinal reinforcing bars 11 and the transverse reinforcing bars 12 pass through. Also, only the first reinforcing member 130, the first and second reinforcing members 130 and 140 or the first and third reinforcing members 130 and 150 may be installed. The first reinforcing member 130 and the first and second auxiliary reinforcing members 140 and 150 fixed to the lower surface of the lower flange 120 are also installed in such a manner as to be located between the extended lines of the two side belts 110, And the three reinforcing members 140 and 150 may be omitted.

17, the first reinforcing member 130 and the first and second auxiliary reinforcing members 140 and 150 are disposed on the upper surface of the lower flange 120 and the upper surface of the upper flange 100, And a separate reinforcing member is additionally provided between the both side belly portions 110 on the lower face of the upper flange 100. Here, the separate reinforcing members include a fourth reinforcing member 190 having a substantially flat plate shape and being fixed in the longitudinal direction and spaced apart from each other by a predetermined distance, and a fourth reinforcing member 190 fixedly connected to the fourth reinforcing members 190, And a fifth reinforcing member 200 installed to be spaced apart from each other. The fourth reinforcing member 190 and the fifth reinforcing member 200 may be installed alone or together.

<Modifications>

18 to 22 are views showing a modified example of the first and second reinforcing members shown in Fig. 25 to 29 are views showing a modified example of the third reinforcing member shown in Fig. 30 is a view showing a modified example of the second reinforcing member shown in Fig. Figs. 31 to 34 are views showing an example in which the first reinforcing member shown in Fig. 2 and the third reinforcing member shown in Fig. 20 are combined and modified. Of course, it goes without saying that the various embodiments shown in Figs. 6 to 17 may be applied to the modifications of Figs. 18 to 30. Fig. Hereinafter, the case where the reinforcing member is the second reinforcing member 131 or the third reinforcing member 132 will be described.

The second reinforcing member 131 shown in Figs. 18 and 19 is a modified example of the first reinforcing member 130 shown in Fig. Like the first reinforcing member 130, the second reinforcing member 131 may have a first through hole 130a. At this time, the first through hole 130a may be formed in at least one of the side surface and the upper surface, So that the reinforced concrete 160 can be introduced into the inside. In addition, the thickness of the horizontal panel on the upper portion of the second reinforcing member 131 may be thicker, the same or thinner than the thickness of the lower vertical panel. The second reinforcing member 131 having the deformed shape as described above can have a greater lower section rigidity than the first reinforcing member 130.

 The third reinforcing member 132 shown in FIGS. 20 and 21 is a modification of the first reinforcing member 130 shown in FIG. 2, and has a substantially "C" The third reinforcing member 132 may have a first through hole 130a like the first reinforcing member 130 and the first through hole 130a may be formed on the side surface and the upper surface The thickness of the horizontal panel of the upper portion of the third reinforcing member 132 may be greater than or equal to or thinner than the thickness of the lower vertical panel. The third reinforcing member 132 of the same shape as the first reinforcing member 130 can have a greater lower section rigidity than the first reinforcing member 130. Of course, the second reinforcing member 131 or the third reinforcing member 132 The first reinforcing member 130 may be replaced, and the first reinforcing member 130 may be installed at any position where the first reinforcing member 130 is installed.

The first auxiliary reinforcing member 141 shown in FIG. 22 is modified to replace the second and third reinforcing members 140 and 150 shown in FIG. The first auxiliary reinforcing member 141 has a substantially plate-like shape and has a coupling hole 142 through which the second reinforcing member 131 or the third reinforcing member 132 can pass. At this time, the fitting hole 142 may have a substantially rectangular shape on the front face, and the width of the upper side portion may be set to be larger than the width below the upper side portion such that the fitting hole 142 is in contact with the upper and lower outer surfaces of the second reinforcing member 131, It may be a long shape. Of course, a plurality of first auxiliary reinforcing members 141 are provided in the longitudinal direction of the rafter-type girders on the side surface, and the second auxiliary reinforcing members 141 may have second through holes like the first auxiliary reinforcing member 140. Instead of the first auxiliary reinforcing member 141, the first auxiliary reinforcing member 140 and the second auxiliary reinforcing member 150 may be used. The first auxiliary reinforcing member 141 may be installed by fixing the second reinforcing member 131 to pass through the coupling hole 142 and fixing both ends to the abdomen 110 located on both sides of the front face.

In FIGS. 23 and 24, the first reinforcing member 130 shown in FIG. 2 is provided with the first auxiliary reinforcing member 141. At this time, since the first reinforcing member 130 has a "T" shape on the front surface, the coupling hole 142 of the first auxiliary reinforcing member 141 is also processed to have a substantially "T" shape on the front surface.

25 to 29, at least two third reinforcing members 132, that is, a third reinforcing member 132a having a small size and a third reinforcing member 132b having a large size, . For example, as shown in FIG. 25, at least one small third reinforcing member 132a may be provided on the upper surface of the lower flange 120 in the longitudinal direction, 3b reinforcement member 132b. 26, at least two third reinforcing members 132a are provided on the upper surface of the lower flange 120 in the width direction, and the third reinforcing members 132a are inserted into the third flange 120, (132b). 27 and 28, the lower flange 120 and the upper flange 100 or the upper face of the lower flange 120 and the lower face of the upper flange 100 are provided with at least one The 3a reinforcing member 132a may be provided and the 3b reinforcing member 132b may be provided to accommodate the 3a reinforcing member 132a. 29, the side surfaces of the third and the third reinforcing members 132b may be widened downward and the third reinforcing member 132b may be provided to receive the third reinforcing member 132a . Of course, the reinforcing members 132a and 132b may be selectively installed on the upper and lower surfaces of the upper flange 100 and the lower surface of the lower flange 120, respectively. The first reinforcing plate 170 or the first auxiliary reinforcing member 141 may be provided on the third and the third reinforcing members 132a and 132b.

As shown in FIG. 30, at least two second reinforcing members 131 shown in FIG. 19, that is, a second reinforcing member 131a having a small size and a second b reinforcing member 131b having a large size are provided . That is, the second reinforcing member 131b may be provided so that at least one small second reinforcing member 131a is provided on the upper surface of the lower flange 120 in the longitudinal direction, and the second reinforcing member 131a is accommodated . Of course, the reinforcing members 131a and 131b may be provided on the upper surface and / or the lower surface of the upper flange 100 and may be installed on the lower flange 120 and the upper flange 100, In the width direction of the upper flange 100 and / or the lower flange 120, and can be installed on the lower surface of the lower flange 120 as well. The first reinforcing plate 170 or the first auxiliary reinforcing member 141 may be provided on the 2a and 2b reinforcing members 131a and 131b.

As shown in FIG. 31, the third reinforcing member 132 shown in FIG. 20 and the first reinforcing member 130 shown in FIG. 2 may be combined. That is, at least one first reinforcing member 130 is provided on the upper surface of the lower flange 120 in the width direction, and at least one third reinforcing member 132 is provided to receive the first reinforcing member 130 Can be installed. Of course, the first reinforcing member 130 and the third reinforcing member 132 may be provided on the upper surface and / or the lower surface of the upper flange 100 and the lower flange 120 and the upper flange 100 may be provided together or separately. A plurality of the flanges 120 can be installed in the width direction of the upper flange 100 and / or the lower flange 120, and the flange 120 can be installed on the lower flange 120. The through holes may be formed on at least one surface of the third reinforcing member 132 and the first reinforcing member 130 so that the reinforcing concrete 160 may be inserted into the third reinforcing member 132, The first and second auxiliary reinforcement members 140 and 150 may be installed inside the third reinforcement member 132.

20, a third reinforcing member 132 shown in Fig. 20 is provided on the upper surface of the lower flange 120, and a third c-reinforcing plate-like shape is provided on the outer side or one side of the third reinforcing member 132 At least one member 132c may be provided in a granular form.

33, the third reinforcing member 132 shown in Fig. 32 may be replaced by the third reinforcing member 132a shown in Fig.

33, the third reinforcing member 132 and the third c reinforcing member 132c or the third reinforcing member 132a and the third c reinforcing member 132c shown in Fig. 33 are disposed on the upper flange 100 and may be installed on the lower surface of the lower flange 120. [

The reinforcing member and the auxiliary reinforcing member may be installed to penetrate the reinforcing concrete 160 or the longitudinal reinforcing bar 11 or the transverse reinforcing bar 12 embedded in the concrete of the slab 10. It is a matter of course that the through holes are formed on one side of the reinforcement member and the auxiliary reinforcement member so as to be introduced into the adjacent spaces and the inside when the concrete is laid. In addition, the above-described various types of reinforcement members and auxiliary reinforcement members may be provided on at least one of the upper and lower surfaces of the lower flange 120 and the upper and lower surfaces of the upper flange 100.

&Lt; Method of manufacturing a girder girder >

35 is a process drawing showing a manufacturing method of the girder type girder of FIG.

First, the upper flange 100, the lower flange 120, and the abdomen 110 are installed. At this time, it is formed into a shape of a normal girder type girder (S10).

Next, at least two first reinforcing members 130, second reinforcing members 131, or third reinforcing members 132 are installed on the upper or lower surface of the lower flange 120 between the belly 110 S20). Hereinafter, the first reinforcing member 130, the second reinforcing member 131, or the third reinforcing member 132 will be collectively described as the first reinforcing member 130 for convenience of explanation. At this time, the first reinforcing member 130 is fixed in the longitudinal direction of the lower flange 120. When two or more first reinforcing members 130 are fixed, they are spaced apart from each other. At least one of the first reinforcing members 130 is fixed according to the length of the girder or the length of the lower flange 120, and when the first reinforcing member 130 is two or more, the first reinforcing member 130 is mutually fixed. Here, it is preferable that the first reinforcing member 130 is fixed by using welding.

Next, at least two first auxiliary reinforcing members 140 are installed between adjacent first reinforcing members 130 (S30) or a first auxiliary reinforcing member 141 is installed (S30 '). When the first auxiliary reinforcing member 140 or the first auxiliary reinforcing members 141 are two or more, they are arranged so as to be spaced apart in the longitudinal direction of the lower flange 120 and fixed by welding.

Next, when the first auxiliary reinforcing member 140 is provided, the second auxiliary reinforcing member 150 is brought into contact with the outer side of the outermost first reinforcing member 130 and the lower flange 120 or the upper flange 100, (S31). Here, when the first auxiliary reinforcing member 141 is provided, the second auxiliary reinforcing member 150 is excluded. The second auxiliary reinforcing members 150 are arranged so as to be spaced apart from each other in the longitudinal direction of the lower flange 120 and fixed by welding. According to each embodiment, the second auxiliary reinforcing member 150 may include a first reinforcing member 130 between the lower flange 120 and the abdomen 110, for example, on the upper surface of the lower flange 120 The upper surface of the lower flange 120, the side surface of the first reinforcing member 130, and the side surface of the abdomen 110 are fixed. As another example, when the first reinforcing member 130 is fixed to the lower surface of the lower flange 120, the outer surface of the outermost first reinforcing member 130 and the lower surface of the lower flange 120 are fixed. As another example, when the first reinforcing member 130 is fixed to the upper surface of the upper flange 100, the outer surface of the outermost first reinforcing member 130 and the upper surface of the upper flange 100 are fixed. As another example, when the first reinforcing member 130 is fixed between the abdomen portions 110 on the lower surface of the upper flange 100, the lower surface of the upper flange 100, the side surface of the first reinforcing member 130, 110).

Next, when the first reinforcing member 130 is not provided on the lower surface of the upper flange 100, the fourth reinforcing member S32 is provided. More specifically, at least one fourth reinforcing member 190 is provided between the abdomen 110 and the lower flange 100 in the longitudinal direction of the upper flange 100. At least one fourth reinforcing member 190 is provided at a predetermined interval in the width direction of the upper flange 100.

Next, a fifth reinforcing member 200 is installed between the fourth reinforcing members 190 and between the fourth reinforcing member 190 and the belly portion 110 (S33). At least one fifth reinforcing member 200 is provided to have a predetermined distance in the longitudinal direction of the upper flange 100.

Finally, the reinforcing concrete 160 is installed at a height enough to embed the first reinforcing member 130 on the upper surface of the lower flange 120 (S40). The reinforced concrete 160 is laid on a part of the girder type girder at the pier or an alternate part when the bridge is made. Of course, partition walls are provided on both sides of the poured area for the placement of the reinforced concrete 160. In addition, the first reinforcing plate 130 may be mounted on the upper surface of the first reinforcing members 130 so that both end portions thereof are fixed to the abdomen. When the reinforcing concrete is installed before the reinforcing concrete is poured, the first reinforcing plate is divided into a first reinforcing member (130) and a first reinforcing member (140, 150) It is possible to install reinforced concrete. In addition, the through holes may be formed in the various reinforcement members or auxiliary reinforcement members described above so that the concrete can flow into the space or inside the concrete.

As described above, those skilled in the art will appreciate that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is defined by the appended claims, rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and equivalents of the claims are to be construed as being included within the scope of the present invention do.

10: bottom plate slab
11: Bell reinforcement
12: transverse reinforcement
100: upper flange
101: Auxiliary flange
110: abdomen
120: Lower flange
130: first reinforcing member
130a: first through hole
131: second reinforcing member
131a: reinforcing member 2a
131b: the second reinforcing member
132: third reinforcing member
132a: the 3a reinforcing member
132b: the third reinforcing member
132c: a third reinforcing member
140: a first auxiliary reinforcing member
141: first auxiliary reinforcing member
142: Coupling hole
150: second auxiliary reinforcing member
160: Reinforced concrete
170: first reinforcing plate
171: Casting ball
180: second reinforcing plate
190: fourth reinforcing member
200: fifth reinforcing member.

Claims (27)

In a girder girder having a lower flange (120), an abdomen (110) and an upper flange (100)
And a reinforcing member longitudinally fixed to at least one of an upper surface and a lower surface of the lower flange 120 or the upper flange 100,
The reinforcing member includes a third reinforcing member 132a having a "U" shape to which an open side is fixed, a third "b" reinforcing member 132a having an open side while holding the third reinforcing member 132a, The member 132b may be provided on the upper flange 100 or the lower flange 120, respectively,
Shaped reinforcement member 131a having an open side fixed to the lower flange 120 or the upper flange 100 while holding an opening side of the lower flange 120 or the upper flange 100 while receiving the 2a reinforcement member 131a, Shaped second b-reinforcing members 131b are provided on the upper flange 100 or the lower flange 120, respectively,
Shaped first reinforcing member 130 having one or two neighboring "T" -shaped shapes and a "U" -shaped first reinforcing member 130 having an open side fixed to receive the first reinforcing member 130 having a "T" The third reinforcing member 132 is provided on the upper flange 100 or the lower flange 120, respectively,
And an auxiliary reinforcement member fixed to the lower flange 120 so as to abut on the reinforcement member for fixing the reinforcement members to the upper surface of the lower flange 120,
The auxiliary reinforcing member includes a first auxiliary reinforcing member 140 having a convex or a plate shape on the front face and a second auxiliary reinforcing member 140 disposed across the reinforcing member and the abdomen portion 110 to be in contact with the reinforcing member, Having first and second auxiliary reinforcing members 150 and 142 having a coupling hole 142 through which the reinforcing member is inserted while being disposed across the both lateral side belts 110 on the front surface, (141). The girder of claim 1, wherein the cross-sectional area of the girder is greater than the girder of the girder.
The method of claim 1,
The reinforcing member may include a first reinforcing member 130 having a "T" character or a " (one) "character shape fixed longitudinally in at least one of an upper surface and a lower surface of the upper flange 100, Shaped third reinforcing member 132c or a fourth reinforcing member 190 fixed in the longitudinal direction or a fifth reinforcing member 200 fixed in the width direction,
The third c-reinforcing member 132c is disposed in the vicinity of the third b-reinforcement member 132b, the second b-reinforcement member 131b, or the third reinforcement member 132. The third c- Shaped girders.
3. The method according to claim 1 or 2,
The third reinforcing member 132a, the third b reinforcing member 132b, and the third reinforcing member 132 are formed such that both side portions on the front face are perpendicularly or at a predetermined inclined angle,
The third reinforcing member 132a and the third b reinforcing member 132b or the second reinforcing member 131a and the second b reinforcing member 131b or between the first reinforcing member 130 and the third reinforcing member 132, Wherein one or at least two of the girders are disposed adjacent to each other on the front surface.
In a girder girder having a lower flange (120), an abdomen (110) and an upper flange (100)
And a reinforcing member longitudinally fixed to at least one of an upper surface and a lower surface of the lower flange 120 or the upper flange 100,
The reinforcing member includes a first reinforcement member 130 having a shape of a () shape and provided in the longitudinal direction on the upper surface of the upper flange 100 so as to be embedded in the bottom plate slab 10,
In at least one of the lower surface of the upper flange 100 and the upper surface of the lower flange 120,
A first reinforcing member 130 having at least one "T" or " (one) "
A third reinforcing member 132 having a " C "shape in which an opening side is fixed,
A second reinforcing member 131 having a shape of "
A third reinforcing member 132b having a "U" shape in which the open side is fixed and a "b" shaped third reinforcing member 132b having an open side while holding the third reinforcing member 132a, Wow,
Shaped second reinforcing member 131b having a "?" -Shaped shape and having an open side fixed to receive the 2a-th reinforcing member 131a and the 2a-th reinforcing member 131a having a " ,
The first reinforcing member 132 is disposed in the vicinity of at least one of the first reinforcing member 130, the third reinforcing member 132, the second reinforcing member 131, the third b-reinforcing member 132b, and the second b- And a third c-reinforcing member 132c,
And an auxiliary reinforcing member fixed to the lower flange 120 so as to abut on the reinforcing member to fix the reinforcing member to the upper surface of the lower flange 120,
The auxiliary reinforcing member includes a first auxiliary reinforcing member 140 having a convex or a plate shape on the front face and a second auxiliary reinforcing member 140 disposed across the reinforcing member and the abdomen portion 110 to be in contact with the reinforcing member, Having first and second auxiliary reinforcing members 150 and 142 having a coupling hole 142 through which the reinforcing member is inserted while being disposed across the both lateral side belts 110 on the front surface, (141)
At least one of the reinforcing member and the auxiliary reinforcement member has a through hole at least on one side of a side surface and an upper surface so that the individual spaces generated by the installation of the reinforcing member and the auxiliary reinforcing member for pouring concrete pass through,
The width of the upper flange 100 is equal to or longer than the width of the lower flange 120 to improve the section rigidity of the upper portion,
The upper flange 100 is formed as a single integral type which is connected to the side portions 110 when viewed from the width direction, or a pair of separate types which are fixed to the side portions 110 while being separated from each other,
A longitudinal reinforcing bar (11) and a transverse reinforcing bar (12), at least one of which is embedded in the bottom plate slab (10)
The first reinforcing member 130 provided in the longitudinal direction on the upper surface of the upper flange 100 is provided with at least one hole machined to pass through the transverse reinforcing bar 12,
A first reinforcing plate 170 which is fixed to both side abdomen portions in contact with the upper or lower surfaces of the reinforcing members and in which a plurality of pouring holes 171 are machined so that the reinforced concrete 160 to be poured can pass therethrough,
A second reinforcing plate 180 spaced apart from the reinforcing member and having both ends fixed to an upper portion or a lower portion of both side belts 110,
A "T" -shaped auxiliary flange 101 provided on an upper extension of the upper portion of the upper flange 100 to be embedded in the bottom plate slab 10 placed on the upper portion of the upper flange 100,
And at least one of the "T" -shaped first reinforcing members 130 provided on the upper surface of the upper flange 100 so as to be embedded in the bottom plate slab 10 placed on the upper portion of the upper flange 100 It is a girder type girder with improved sectional rigidity while keeping its shape.
delete In the method of manufacturing the girder girder,
A step S10 of setting up the upper flange 100, the lower flange 120 and the abdomen,
(S20) of installing a reinforcing member on at least one of the upper surface and the lower surface of the lower flange (120) or the upper flange (100)
In operation 20,
A third reinforcing member 132b having a U-shaped shape and a third U-shaped reinforcing member 132b accommodating the third reinforcing member 132a are provided on the upper flange 100, Or the lower flange 120,
Shaped reinforcing members 131a and a second reinforcing member 131b for receiving the reinforcing members 131a are formed on the upper flange 100 at the open sides thereof, Or the lower flange 120,
Shaped first reinforcing member 130 which is in the form of at least two "T" -shaped members and a third reinforcing member 132 of a "D" -shaped shape that receives the first reinforcing member 130 of "T" Are provided on the upper flange 100 or the lower flange 120, respectively,
Step 30 (S30) of installing a "reinforcing" or plate-like first auxiliary reinforcing member 140 across the reinforcing members;
(S30 ') of installing a first `auxiliary reinforcing member 141 having a coupling hole 142 through which the reinforcing member passes, across the both side belts 110 on the front side;
(S31) of installing a second auxiliary reinforcing member (150) between the reinforcing member and the abdomen (110) or on the outer surface of the outermost reinforcing member. And a method of manufacturing the improved girder girder.
The method of claim 6,
The third reinforcing member 132a, the third b reinforcing member 132b, and the third reinforcing member 132 are formed on both sides of the front surface in the form of a vertical or a slant,
The third reinforcing member 132a and the third b reinforcing member 132b or the second reinforcing member 131a and the second b reinforcing member 131b or between the first reinforcing member 130 and the third reinforcing member 132, Two or more are installed on the front side alone or in the neighborhood,
The twentieth step S20 includes a first reinforcing member 130 having a "T" shape or a "" shape and fixed to the upper flange 100 in at least one of the upper and lower surfaces thereof in the longitudinal direction, At least one of a plate-shaped third c-reinforcing member 132c fixed in the longitudinal direction, a fourth reinforcing member 190 fixed in the longitudinal direction, and a fifth reinforcing member 200 fixed in the width direction are further provided ,
The third c-reinforcing member 132c is disposed in the vicinity of the third b-reinforcement member 132b, the second b-reinforcement member 131b, or the third reinforcement member 132. The third c- A method of making a girdle.
In the method of manufacturing the girder girder,
A step S10 of setting up the upper flange 100, the lower flange 120 and the abdomen,
(S20) of installing a reinforcing member on at least one of the upper surface and the lower surface of the lower flange (120) or the upper flange (100)
In operation 20,
A first reinforcement member 130 is installed on the upper surface of the upper flange 100 in the longitudinal direction so as to be embedded in the bottom plate slab 10,
In at least one of the lower surface of the upper flange 100 and the upper surface of the lower flange 120,
Shaped first reinforcing member 130 having at least one "T" shape or a "third" reinforcing member 132 having an open side fixed thereto, or a " A second reinforcing member 131,
A third reinforcing member 132b having a "U" shape in which the open side is fixed and a "b" shaped third reinforcing member 132b having an open side while holding the third reinforcing member 132a, Wow,
Shaped second reinforcing member 131b having a "?" -Shaped shape and having an open side fixed to receive the 2a-th reinforcing member 131a and the 2a-th reinforcing member 131a having a " ,
The first reinforcing member 130 and the second reinforcing member 131b are provided in the vicinity of any one of the first reinforcing member 130, the third reinforcing member 132, the second reinforcing member 131, the third b-reinforcing member 132b, At least one of the third c-reinforcing members 132c is further provided,
Step 30 (S30) of installing a "reinforcing" or plate-like first auxiliary reinforcing member 140 across the reinforcing members;
(S30 ') of installing a first `auxiliary reinforcing member 141 having a coupling hole 142 through which the reinforcing member passes, across the both side belts 110 on the front side;
A thirteenth step (S31) of installing a second auxiliary reinforcing member (150) between the reinforcing member and the abdomen (110) or on an outer surface of the outermost reinforcing member;
A thirty-second step (S32) of installing a plate-shaped fourth reinforcing member (190) on the lower surface of the upper flange (100) if no reinforcing member is provided on the lower surface of the upper flange (100);
(S33) of installing a plate-like fifth reinforcing member 200 between the fourth reinforcing members 190 or between the fourth reinforcing member 190 and the belly portion 110;
A thirteenth step S34 of mounting the first reinforcing plate 170 having the concrete pouring holes 171 on the upper surface of the reinforcing member fixed to the upper surface of the lower flange 120 and fixing the first reinforcing plate 170 to the both lateral belts 110, ;
A thirty-fifth step (S35) of fixing the second reinforcing plate 180 across the lateral side belly 110 to the upper or lower portion of the abdomen 110;
A forty-second step (S40) of placing the reinforced concrete (160) at a height enough to bury the reinforcing member fixed on the upper surface of the lower flange (120); The girder of claim 1, further comprising at least one of the following:


delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete
KR1020150133815A 2015-09-22 2015-09-22 Steel box girder maintained height and reinforced rigidity, and method for constructing thereof KR101779959B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150133815A KR101779959B1 (en) 2015-09-22 2015-09-22 Steel box girder maintained height and reinforced rigidity, and method for constructing thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150133815A KR101779959B1 (en) 2015-09-22 2015-09-22 Steel box girder maintained height and reinforced rigidity, and method for constructing thereof

Publications (2)

Publication Number Publication Date
KR20170035128A KR20170035128A (en) 2017-03-30
KR101779959B1 true KR101779959B1 (en) 2017-10-23

Family

ID=58503438

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150133815A KR101779959B1 (en) 2015-09-22 2015-09-22 Steel box girder maintained height and reinforced rigidity, and method for constructing thereof

Country Status (1)

Country Link
KR (1) KR101779959B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102275158B1 (en) 2020-11-30 2021-07-08 한우물중공업 주식회사 Steel box girder bridge
KR102453222B1 (en) * 2021-04-08 2022-10-12 텔루스엔지니어링 주식회사 Reinforced girder and bridge using the same

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108381752B (en) * 2018-02-12 2019-10-08 浙江八达隧道工程股份有限公司 A kind of precast box beam steel bar colligation mold and its installation method
CN110170799B (en) * 2019-06-04 2020-12-11 上海绿地建筑钢结构有限公司 Steel box girder manufacturing process
KR102151567B1 (en) * 2019-11-19 2020-09-03 산이건설 주식회사 Steel composite bridge
KR102151576B1 (en) * 2019-11-19 2020-09-03 산이건설 주식회사 Steel composite bridge
CN111705676B (en) * 2020-07-06 2022-02-22 江苏致信桥梁检测与维修加固有限公司 Flexible assembling equipment for bridge T steel and implementation method thereof
CN112112077B (en) * 2020-09-15 2022-06-10 中交第三航务工程局有限公司 Construction method of steel box girder
KR102292294B1 (en) * 2020-11-30 2021-08-20 김정 Construction method of internal reinforcement of bridge girder
KR102355916B1 (en) * 2021-04-28 2022-02-08 주식회사 최선트레이 Reinforced cover for cable tray sleeve
CN115288025B (en) * 2022-08-16 2023-09-19 江苏省交通工程集团有限公司 Easy-to-detach adjustable temporary support seat auxiliary installation structure for steel box girder and construction process thereof
CN115158576A (en) * 2022-08-18 2022-10-11 上海外高桥造船有限公司 Anti-collision assembly of ship and ship comprising same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007170045A (en) * 2005-12-22 2007-07-05 Ohbayashi Corp Reinforcing structure of steel slab and reinforcing method of steel slab
US20090077758A1 (en) * 2007-09-21 2009-03-26 Groupe Canam Inc. Bridge deck panel
KR101221419B1 (en) * 2012-05-08 2013-01-21 박상현 Steel box girder having upper-flange of layer-structure, and bridge and construction method of bridge containing thereof
KR101257941B1 (en) * 2012-02-06 2013-04-24 삼표건설 주식회사 Steel box girder and construction method for girder thereof
JP5535440B2 (en) * 2008-02-05 2014-07-02 川崎重工業株式会社 Composite steel slab that prevents cracking

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100545490B1 (en) 2003-04-08 2006-01-24 공강주 steel box girder for bridge
KR100650158B1 (en) 2006-01-05 2006-11-30 주식회사 스틸코리아 Prefabricated steel girder with void web, lower member of a box type and opened upper member and the construction method using the same
KR100947306B1 (en) 2007-12-04 2010-03-16 한국건설기술연구원 Composite bridge structure with concrete shear connector and construction method of the same
KR100943823B1 (en) 2009-10-09 2010-02-25 한우물중공업(주) Girder compounded with the concrete and steel
KR101006545B1 (en) 2009-12-22 2011-01-07 (주)유니트엔지니어링 Girder bridge construction method using steel box girder with exterior longitudinal rib and interior reinfocing plate

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007170045A (en) * 2005-12-22 2007-07-05 Ohbayashi Corp Reinforcing structure of steel slab and reinforcing method of steel slab
US20090077758A1 (en) * 2007-09-21 2009-03-26 Groupe Canam Inc. Bridge deck panel
JP5535440B2 (en) * 2008-02-05 2014-07-02 川崎重工業株式会社 Composite steel slab that prevents cracking
KR101257941B1 (en) * 2012-02-06 2013-04-24 삼표건설 주식회사 Steel box girder and construction method for girder thereof
KR101221419B1 (en) * 2012-05-08 2013-01-21 박상현 Steel box girder having upper-flange of layer-structure, and bridge and construction method of bridge containing thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102275158B1 (en) 2020-11-30 2021-07-08 한우물중공업 주식회사 Steel box girder bridge
KR102453222B1 (en) * 2021-04-08 2022-10-12 텔루스엔지니어링 주식회사 Reinforced girder and bridge using the same

Also Published As

Publication number Publication date
KR20170035128A (en) 2017-03-30

Similar Documents

Publication Publication Date Title
KR101779959B1 (en) Steel box girder maintained height and reinforced rigidity, and method for constructing thereof
KR101144586B1 (en) Steel built-up beam having closed section for applying long span and reduction of height and concrete filled composite beam system using the same
KR101880490B1 (en) Structure Of Connecting Colum And Composite Beam For Deep Deck
KR101621341B1 (en) Open type prestressed steel box girder and bridge construction method therewith
KR100812132B1 (en) Concret slab assembly
KR100694805B1 (en) Hollow prestressed concrete HPC girder and spliced hollow prestressed concrete girder s-HPC bridge construction method
KR101160763B1 (en) Composite beam using deck plate having plulality of cap plate
KR100961225B1 (en) Composite Concrete Plate Enclosing Fiber Reinforced Plastics Deck
KR102014418B1 (en) Beam bridge having beam support block and its construction method
KR200438042Y1 (en) Deck Plate
KR101191545B1 (en) Deck plate having plulality of cap plate
KR102033571B1 (en) Concrete Filled Tubular Flange Composite Girder and Bridge with the Concrete Filled Tubular Flange Composite Girder
KR101105404B1 (en) Deck plate system using cap plate
KR102503181B1 (en) Concrete box girder and bridge using the same
KR101482977B1 (en) Steel concrete composite beam using profiled plate
KR20150071957A (en) Buoyancy prevention module used for void slab
KR101929885B1 (en) Steel girder and manufacturing method thereof
KR100281458B1 (en) Prefabricated culvert
KR200425920Y1 (en) Assembly Type Complex Temporary Bridge Deck
KR20100002506A (en) Built-up beam having profiled steel web
KR100997450B1 (en) Temporary bridge and method for constucting an temporary bridge
KR101740004B1 (en) Box girder bridge construction and assembly using the same
KR101704355B1 (en) Girder for bridge
JP2005213852A (en) Foundation block for guardrail
KR101679535B1 (en) Girder for bridge and its manufacturing method

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
N231 Notification of change of applicant
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right