KR20150029387A - precast concrete structures and their construction methods for girder synthesis - Google Patents
precast concrete structures and their construction methods for girder synthesis Download PDFInfo
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- KR20150029387A KR20150029387A KR20130108524A KR20130108524A KR20150029387A KR 20150029387 A KR20150029387 A KR 20150029387A KR 20130108524 A KR20130108524 A KR 20130108524A KR 20130108524 A KR20130108524 A KR 20130108524A KR 20150029387 A KR20150029387 A KR 20150029387A
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- concrete structure
- girder
- precast concrete
- precast
- upper flange
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
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- Bridges Or Land Bridges (AREA)
Abstract
Description
The present invention relates to a precast concrete structure for girder synthesis and a method of constructing the precast concrete structure.
Generally, the method of increasing the compressive resistance of the upper flange when installing the bottom plate slab on the girder is to increase the amount of steel or concrete of the upper flange, or to increase the compressive resistance of the upper flange by appropriately putting concrete into the site. .
Here, the method of increasing the required amount of steel or concrete is not economical in the case of steel, and is not mainly used in the case of concrete, because the weight is increased, and the latter concrete is placed on the upper flange of the girder The method is not universally applied due to the difficulty in construction method of concrete due to the construction characteristics of concrete.
In addition, Patent No. 10-0869568 also discloses a method of increasing the stiffness of the upper flange of a steel girder by synthesizing a concrete concrete with an upper flange, but also a concrete upper casing Since the girder has to be installed after installation, it is difficult to apply it universally even though the construction is complicated and difficult because of its applicability.
In addition, when the slab of a bridge is installed as a precast slab without construction of a slab for the purpose of shortening the construction period or improving the quality of construction, the precast slab is prevented from being blocked out It is not completely synthesized over the whole length of the upper flange, so that the synthesis efficiency is not perfect and it is installed in the upper flange of the girder. Shear joints also have complicated construction due to the fact that shear joints must be formed in block units in accordance with the composite holes of precast slabs.
Accordingly, the present invention has been made to solve the above-mentioned problems,
It is a precast concrete structure for increasing rigidity or increasing the compressive resistance of the upper flange of the girder is a precast concrete structure which is simple in composition, easy to construct, low in construction cost and excellent in durability, The present invention provides a precast concrete structure for girder composite and a construction method thereof, which can be universally easily applied.
According to an aspect of the present invention, there is provided a precast concrete structure for girder composite comprising: a concrete structure having a predetermined shape; A concave groove formed in the lower portion of the concrete structure in a longitudinally concave shape; A shear connector disposed laterally at regular intervals in a concave groove of the concrete structure; A shear connection member disposed at a predetermined interval on an upper surface of the precast concrete structure; And a mortar injection port formed at predetermined intervals along the longitudinal direction of the concrete structure.
According to another aspect of the present invention, there is provided a method of constructing a precast concrete structure for girder composite, comprising the steps of: fabricating a girder; A method for manufacturing a precast concrete structure according to claim 1, wherein the step (SII) comprises: Mounting a precast concrete structure on the upper flange of the girder (SIII); And injecting non-shrinkage mortar into the precast concrete structure to synthesize a girder and a precast concrete structure (SIV).
As described above, the precast concrete structure for girder composite according to the present invention and its construction method have the following effects.
First, the present invention can economically and efficiently construct a precast concrete structure on an upper flange of a girder without complicated construction process.
Second, the present invention can be universally applied to a composite structure of a precast concrete structure on the upper flange of a girder.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front perspective view 1 showing an upper flange reinforcing concrete structure of a precast concrete structure for girder composite according to the present invention,
2 is a rear perspective view 1 showing a concrete concrete for an upper flange reinforcement of a precast concrete structure for girder composite according to the present invention,
3 is a cross-sectional view of an upper flange reinforcing concrete structure of a precast concrete structure for girder composite according to the present invention,
FIG. 4 is a perspective view of a U-shaped steel girder according to an embodiment of the present invention. FIG. 4 is a perspective view showing a concrete structure for a pre-
FIG. 5 is a cross-sectional view showing a state where the upper flange reinforcing concrete structure of the precast concrete structure for girder composite according to the present invention is applied to a U-shaped steel girder,
6 is a front perspective view 1 showing a concrete structure for reinforcing an upper flange serving as a deck plate of a precast concrete structure for girder composite according to the present invention,
7 is a rear perspective view 1 showing a concrete flange for reinforcing an upper flange serving as a deck plate of a precast concrete structure for girder composite according to the present invention,
FIG. 8 is a cross-sectional view of a concrete structure for reinforcing an upper flange serving as a deck plate of a pre-cast concrete structure for girder composing according to the present invention,
FIG. 9 is a perspective view of a U-shaped steel girder in which a concrete frame for reinforcing an upper flange serving as a deck plate of a pre-cast concrete structure for girder composing according to the present invention is applied to a U-
10 is a cross-sectional view of a U-shaped steel girder in which a concrete flange for reinforcing an upper flange serving as a deck plate of a pre-cast concrete structure for girder composite according to the present invention is applied,
11 is a front perspective view 2 showing a concrete concrete for reinforcing the upper flange of the precast concrete structure for girder composite according to the present invention,
FIG. 12 is a rear perspective view 2 showing a concrete concrete for an upper flange reinforcement of a precast concrete structure for girder composite according to the present invention,
13 is a cross-sectional view of a concrete concrete structure for an upper flange reinforcement of a pre-cast concrete structure for girder composite according to the present invention,
FIG. 14 is a perspective view of a concrete structure for an upper flange reinforcement of a pre-cast concrete structure for girder composite according to the present invention applied to a U-shaped steel girder,
15 is a cross-sectional view of a concrete structure for the upper flange reinforcement of a pre-cast concrete structure for girder composite according to the present invention applied to a U-shaped steel girder,
16 is a front perspective view 2 showing the concrete flange for reinforcing the upper flange serving as a deck plate of the precast concrete structure for girder composite according to the present invention,
17 is a rear perspective view 2 of a concrete structure for reinforcing an upper flange serving as a deck plate of a precast concrete structure for girder composite according to the present invention,
18 is a cross-sectional view of a concrete structure for reinforcing an upper flange serving as a deck plate of a pre-cast concrete structure for girder composite according to the present invention,
Fig. 19 is a perspective view of a U-shaped steel girder in which a concrete frame for reinforcing an upper flange serving as a deck plate of a pre-cast concrete structure for girder composing according to the present invention is applied to a U-
20 is a cross-sectional view of a U-shaped steel girder in which a concrete frame for reinforcing an upper flange serving as a deck plate for a girder composing precast concrete structure according to the present invention is applied to a girder,
21 is a front perspective view showing a precast slab of a precast concrete structure for girder composite according to the present invention,
22 is a rear perspective view showing a precast slab of a precast concrete structure for girder composite according to the present invention,
23 is a sectional view showing a precast slab of a precast concrete structure for girder composing according to the present invention,
24 is a perspective view showing a state in which a precast slab of a pre-cast concrete structure for girder composite according to the present invention is applied to a U-shaped steel girder,
25 is a sectional view showing a state where a precast slab of a pre-cast concrete structure for girder composing according to the present invention is applied to a U-shaped steel girder,
FIG. 26 is a perspective view showing a state where the upper flange reinforcing concrete structure of the pre-cast concrete structure for girder composite according to the present invention is applied to an I-shaped steel girder,
Fig. 27 is a sectional view 1 showing the concrete structure for the upper flange reinforcement of the pre-cast concrete structure for girder composite according to the present invention applied to the I-shaped steel girder,
FIG. 28 is a perspective view of a girder composing precast concrete structure according to the present invention, in which an upper flange reinforcing concrete deck plate combined with an I-shaped steel girder is shown in a perspective view 1,
FIG. 29 is a cross-sectional view showing a state where a concrete flange for reinforcing an upper flange serving as a deck plate of a pre-cast concrete structure for girder composite according to the present invention is applied to an I-
FIG. 30 is a perspective view of a concrete structure for an upper flange reinforcement of a pre-cast concrete structure for girder composite according to the present invention applied to an I-shaped steel girder,
31 is a cross-sectional view of a concrete structure for an upper flange reinforcement of a precast concrete structure for girder composing according to the present invention applied to an I-shaped steel girder,
FIG. 32 is a perspective view of a girder composing precast concrete structure according to the present invention, in which an upper flange reinforcing concrete deck plate combined with concrete is applied to an I-beam steel girder,
33 is a cross-sectional view showing a state where a concrete flange for reinforcing an upper flange serving as a deck plate of a pre-cast concrete structure for girder composite according to the present invention is applied to an I-
34 is a perspective view showing a state in which a precast slab of a pre-cast concrete structure for girder composite according to the present invention is applied to an I-shaped steel girder,
FIG. 35 is a sectional view showing a state in which a pre-cast slab of a pre-cast concrete structure for girder composite according to the present invention is applied to an I-shaped steel girder,
FIG. 36 is a front perspective view 3 showing an upper flange reinforcing concrete structure serving as a deck plate of a pre-cast concrete structure for girder composite according to the present invention,
FIG. 37 is a rear perspective view 3 showing a concrete structure for reinforcing an upper flange serving as a deck plate of a pre-cast concrete structure for girder composite according to the present invention,
38 is a cross-sectional view of a concrete structure for reinforcing an upper flange serving as a deck plate of a pre-cast concrete structure for girder composite according to the present invention,
FIG. 39 is a perspective view of a U-shaped concrete girder in which a concrete frame for reinforcing an upper flange serving as a deck plate of a pre-cast concrete structure for girder composite according to the present invention is applied to a U-
40 is a cross-sectional view of a U-shaped concrete girder in which a concrete frame for reinforcing an upper flange serving as a deck plate of a pre-cast concrete structure for girder composite according to the present invention is applied to a U-
41 is a front perspective view 4 showing the concrete flange for reinforcing the upper flange serving as the deck plate of the precast concrete structure for girder composite according to the present invention,
42 is a rear perspective view 4 showing the concrete flange for reinforcing the upper flange serving as a deck plate of the pre-cast concrete structure for girder composite according to the present invention,
43 is a cross-sectional view of a concrete flange for reinforcing an upper flange serving as a deck plate of a pre-cast concrete structure for girder composite according to the present invention,
44 is a perspective view showing a state where a concrete flange for reinforcing an upper flange serving as a deck plate of a pre-cast concrete structure for girder composite according to the present invention is applied to a U-shaped concrete girder;
45 is a cross-sectional view showing a state where a concrete flange for reinforcing an upper flange serving as a deck plate of a precast concrete structure for girder composite according to the present invention is applied to a U-
46 is a front perspective view 2 showing a precast slab of a precast concrete structure for girder composite according to the present invention,
47 is a rear perspective view 2 showing a precast slab of a precast concrete structure for girder composite according to the present invention,
48 is a cross-sectional view 2 of a precast slab of a precast concrete structure for girder composite according to the present invention,
FIG. 49 is a perspective view showing a state where a precast slab of a pre-cast concrete structure for girder composite according to the present invention is applied to a U-
50 is a cross-sectional view showing a state in which a precast slab of a precast concrete structure for girder composite according to the present invention is applied to a U-shaped concrete girder.
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
[Example 1]
- Concrete case for upper flange reinforcement 1
FIG. 1 is a front perspective view 1 showing a concrete concrete for an upper flange reinforcement of a girder composing precast concrete structure according to the present invention, FIG. 2 is a perspective view of a concrete structure for an upper flange reinforcement of a girder composing precast concrete structure according to the present invention, And FIG. 3 is a cross-sectional view 1 showing a concrete concrete for an upper flange reinforcement of a precast concrete structure for girder composite according to the present invention.
As shown in these figures, the pre-cast concrete structure PC for girder composite according to the present invention comprises a
That is, the concrete precast concrete structure PC for girder composing according to the present invention is characterized in that the
Here, the
Also, the
The
A
Particularly, the
The
That is, the pre-cast concrete structure PC for girder composing according to the present invention is a concrete concrete reinforcing concrete for reinforcing the upper flange of the steel girder SG and is a precast concrete structure which is synthesized with the upper flange F of the steel girder SG PC) is formed in a
The pre-cast concrete structure PC for constructing a girder according to the present invention having the above-described structure can be constructed in the same manner as a conventional method in the prior art, by connecting the upper end flange F of the steel girder SG to the front end joint 30 , A precast concrete structure PC is mounted on the upper surface of the upper flange F and then a shrinkage mortar is injected into a
It is also noted that the composite portion of the precast concrete structure PC to be combined with the upper flange F of the steel girder SG may be configured to be bilaterally symmetrical.
- Upper flange reinforced concrete structure 1 U-shaped steel girder application
FIG. 4 is a perspective view 1 showing a state in which a concrete concrete frame for reinforcing an upper flange of a pre-cast concrete structure for girder composing according to the present invention is applied to a U-shaped steel girder, FIG. 5 is a perspective view of a pre-cast concrete structure for girder composite according to the present invention Sectional view of the U-shaped steel girder in which the upper flange reinforcing concrete casing is applied to the U-shaped steel girder.
As shown in these figures, the method for constructing a precast concrete structure for girder composite according to the present invention comprises the steps of: (S I) preparing a U-shaped steel girder SG; A
That is, the method for constructing a pre-cast concrete structure for girder composite according to the present invention comprises the steps of: fabricating a U-shaped steel girder SG and forming a precast concrete structure PC as an upper flange reinforcing concrete of the U- A precast concrete structure PC is mounted on the upper flange F of the U-shaped steel girder SG and then a shrinkage-free concrete is poured into the
- Deck plate combined upper flange reinforcement concrete 1
6 is a front perspective view 1 showing an upper flange reinforcing concrete structure serving as a deck plate of a pre-cast concrete structure for girder composing according to the present invention, FIG. 7 is a front elevation view showing the combination of a deck plate for a girder composing precast concrete structure according to the present invention FIG. 8 is a cross-sectional view 1 showing a concrete frame for reinforcing an upper flange serving as a deck plate of a pre-cast concrete structure for girder composite according to the present invention.
As shown in these figures, the pre-cast concrete structure PC for girder composite according to the present invention comprises a
That is, the concrete precast concrete structure PC for girder composing according to the present invention is characterized in that the
Especially, the upper flange reinforcing concrete deck plate combined with the deck plate is formed with a plurality of deck plates on the upper concrete flange reinforcing concrete.
Here, the
Also, the
The
A
Particularly, the
The
That is, the pre-cast concrete structure PC for girder composite according to the present invention is used for reinforcing the upper flange which also serves as a pre-cast deck plate in which the deck plate and the concrete part provided on the upper flange F of the steel girder SG are integrally formed. A
The pre-cast concrete structure PC for constructing a girder according to the present invention having the above-described structure can be constructed in the same manner as a conventional method in the prior art, by connecting the upper end flange F of the steel girder SG to the front end joint 30 A mortar is inserted into a
It is also noted that the composite portion of the precast concrete structure PC to be combined with the upper flange F of the steel girder SG may be configured to be bilaterally symmetrical.
- Deck plate combined upper flange reinforcing concrete 1 U-shaped steel girder
FIG. 9 is a perspective view 1 showing a state where a concrete flange for reinforcing an upper flange serving as a deck plate of a precast concrete structure for girder composite according to the present invention is applied to a U-shaped steel girder, FIG. 10 is a perspective view 1 is a cross-sectional view showing a state in which a concrete flange for reinforcing an upper flange serving as a deck plate of a cast concrete structure is applied to a U-shaped steel girder.
As shown in these figures, the method for constructing a precast concrete structure for girder composite according to the present invention comprises the steps of: (S I) preparing a U-shaped steel girder SG; A
That is, the method for constructing a pre-cast concrete structure for girder composite according to the present invention includes the steps of fabricating a U-shaped steel girder (SG), and forming a girder composite for a deck plate of the U-shaped steel girder (SG) After the cast concrete structure PC is manufactured, a pre-cast concrete structure PC for girder synthesis is mounted on the upper flange F of the U-shaped steel girder SG and then the precast concrete structure for girder composition PC), a non-shrinkage mortar is injected into the
- Concrete Case 2 for upper flange reinforcement only
FIG. 11 is a front perspective view 2 showing a concrete concrete for an upper flange reinforcement of a girder composing precast concrete structure according to the present invention, and FIG. 12 is a front perspective view showing a concrete structure for an upper flange reinforcement of a girder composing concrete according to the present invention. And Fig. 13 is a cross-sectional view 2 showing a concrete concrete for an upper flange reinforcement of a precast concrete structure for girder composite according to the present invention.
As shown in these figures, the pre-cast concrete structure PC for girder composite according to the present invention comprises a
That is, the concrete precast concrete structure PC for girder composing according to the present invention is characterized in that the
Here, the
Also, the
The
A
Particularly, the
The
That is, the pre-cast concrete structure PC for girder composite according to the present invention is a concrete structure for reinforcing the upper flange of the steel girder, and is a pre-cast concrete structure for girder synthesis PC) is formed in a longitudinal direction by a
The pre-cast concrete structure PC for constructing a girder according to the present invention having the above-described structure can be constructed in the same manner as a conventional method in the prior art, by connecting the upper end flange F of the steel girder SG to the front end joint 30 A
It is also noted that the composite portion of the pre-cast concrete structure PC for composing the girder composing the upper flange F of the steel girder SG can be configured asymmetrically.
- Concrete frame for upper flange reinforcement 2 U-shaped steel girder
FIG. 14 is a perspective view 2 showing a state in which a concrete structure for only upper flange reinforcement of a pre-cast concrete structure for girder composing according to the present invention is applied to a U-shaped steel girder, FIG. 15 is a perspective view of a pre- Sectional view showing a state in which the upper flange-reinforced concrete casing of the U-shaped steel girder is applied to the U-shaped steel girder.
As shown in these figures, the method for constructing a precast concrete structure for girder composite according to the present invention comprises the steps of: (S I) preparing a U-shaped steel girder SG; A
That is, the method for constructing a pre-cast concrete structure for girder composite according to the present invention comprises the steps of fabricating a U-shaped steel girder (SG), and forming a pre-cast concrete structure for girder synthesis (PC), a pre-cast concrete structure (PC) for girder synthesis is mounted on the upper flange F of the U-shaped steel girder SG, and then the pre-cast concrete structure PC Shrinkage mortar is injected into the formed
- Deck plate combined upper flange reinforcement concrete 2
FIG. 16 is a front perspective view 2 showing an upper flange reinforcing concrete structure serving as a deck plate for a girder composite pre-cast concrete structure according to the present invention, FIG. 17 is a front elevational view of a deck plate for a girder composite pre- FIG. 18 is a cross-sectional view 2 showing a concrete flange for reinforcing an upper flange serving as a deck plate for a girder composite pre-cast concrete structure according to the present invention.
As shown in these figures, the pre-cast concrete structure PC for girder composite according to the present invention comprises a
That is, the concrete precast concrete structure PC for girder composing according to the present invention is characterized in that the
Especially, the upper flange reinforcing concrete deck plate combined with the deck plate is formed with a plurality of deck plates on the upper concrete flange reinforcing concrete.
Here, the
Also, the
The
A
Particularly, the
The
That is, the pre-cast concrete structure PC for girder composite according to the present invention is used for reinforcing the upper flange which also serves as a pre-cast deck plate in which the deck plate and the concrete part provided on the upper flange F of the steel girder SG are integrally formed. A
The pre-cast concrete structure PC for constructing a girder according to the present invention having the above-described structure can be constructed in the same manner as a conventional method in the prior art, by connecting the upper end flange F of the steel girder SG to the front end joint 30 A
It is also noted that the composite portion of the pre-cast concrete structure PC for composing the girder composing the upper flange F of the steel girder SG can be configured asymmetrically.
- Deck plate combined with upper flange reinforcement concrete 2 U-shaped steel girder
Fig. 19 is a perspective view 2 showing a state where a concrete flange for reinforcing upper flange serving as a deck plate of a precast concrete structure for girder composing according to the present invention is applied to a U-shaped steel girder, Fig. 20 is a perspective view 2 is a cross-sectional view showing a state in which a concrete flange for reinforcing an upper flange serving as a deck plate of a cast concrete structure is applied to a U-shaped steel girder.
As shown in these figures, the method for constructing a precast concrete structure for girder composite according to the present invention comprises the steps of: (S I) preparing a U-shaped steel girder SG; A
That is, the method for constructing a pre-cast concrete structure for girder composite according to the present invention includes the steps of fabricating a U-shaped steel girder (SG), and forming a girder composite for a deck plate of the U-shaped steel girder (SG) After the cast concrete structure PC is manufactured, a pre-cast concrete structure PC for girder synthesis is mounted on the upper flange F of the U-shaped steel girder SG and then the precast concrete structure for girder composition PC), a non-shrinkage mortar is injected into the
- precast slab
FIG. 21 is a front perspective view showing a precast slab of a pre-cast concrete structure for girder composing according to the present invention, FIG. 22 is a rear perspective view showing a pre-cast slab of a pre-cast concrete structure for girder composite according to the present invention, 23 is a cross-sectional view showing a precast slab of a precast concrete structure for girder composite according to the present invention.
As shown in these figures, the pre-cast concrete structure PC for girder composite according to the present invention comprises a
That is, the concrete precast concrete structure PC for girder composing according to the present invention is characterized in that the
Here, the
Also, the
The
A
Particularly, the
The
That is, the precast concrete structure PC for girder composing according to the present invention is a precast concrete slab for synthesizing a girder according to the present invention, in which a lower end portion where a pre-cast concrete structure (PC) for composing a girder synthesized with an upper flange F of a steel girder A
The pre-cast concrete structure PC for constructing a girder according to the present invention having the above-described structure can be constructed in the same manner as a conventional method in the prior art, by connecting the upper end flange F of the steel girder SG to the front end joint 30 A
It is also noted that the composite part of the pre-cast concrete structure PC for composing the girder synthesized in the upper flange F of the steel girder SG can be configured symmetrically.
- Application of precast slab U-shaped steel girder
FIG. 24 is a perspective view showing a state where a precast concrete slab of a pre-cast concrete structure for girder composing according to the present invention is applied to a U-shaped steel girder, FIG. 25 is a perspective view showing a precast concrete slab Is a sectional view showing a state in which the U-shaped steel girder is applied.
As shown in these figures, the method for constructing a precast concrete structure for girder composite according to the present invention comprises the steps of: (S I) preparing a U-shaped steel girder SG; A
That is, the method for constructing a pre-cast concrete structure for girder composite according to the present invention comprises the steps of fabricating a U-shaped steel girder (SG), attaching a pre-cast slab to the upper flange (F) of the U- After the cast concrete structure PC is manufactured, a pre-cast concrete structure PC for girder synthesis is mounted on the upper flange F of the U-shaped steel girder SG and then the precast concrete structure for girder composition PC), a non-shrinkage mortar is injected into the
[Example 2]
- Concrete frame for upper flange reinforcement 1 Application of I type steel girder
FIG. 26 is a perspective view 1 showing a state in which an upper flange-reinforced concrete structure of a pre-cast concrete structure for girder composing according to the present invention is applied to an I-shaped steel girder, FIG. 27 is a perspective view of a pre-cast concrete structure for girder composite according to the present invention 1 is a cross-sectional view showing a state in which an upper flange reinforcing concrete casing is applied to an I-shaped steel girder.
As shown in these drawings, the method for constructing a precast concrete structure for girder composite according to the present invention comprises the steps of: (S I) preparing a steel girder SG; A
That is, in the method of constructing a precast concrete structure for girder composite according to the present invention, an I-shaped steel girder (SG) is manufactured, and a precast concrete structure for girder synthesis, which is an upper flange- (PC) and then a girder-forming precast concrete structure (PC) is placed on the upper flange F of the steel girder SG, and then the mortar-forming precast concrete structure PC Shrinkage mortar is injected into the
- Deck plate combined upper flange reinforcing concrete 1 I type steel girder
Fig. 28 is a perspective view 1 showing a state in which an upper flange reinforcing concrete deck plate combined with a precast concrete structure for girder composing according to the present invention is applied to an I-shaped steel girder, Fig. 29 is a perspective view showing a girder- 1 is a cross-sectional view showing a state in which an upper flange reinforcing concrete deck plate for a cast concrete structure is applied to an I-shaped steel girder.
As shown in these drawings, a method of constructing a precast concrete structure for girder composite according to the present invention comprises the steps of: (I) forming an I-shaped steel girder SG; A
That is, in the method of constructing a precast concrete structure for girder composite according to the present invention, an I-shaped steel girder (SG) is fabricated, and a girder composite for a deck plate of the I-shaped steel girder (SG) After the cast concrete structure PC is manufactured, a pre-cast concrete structure PC for girder synthesis is placed on the upper flange F of the I-shaped steel girder SG and then the precast concrete structure for girder synthesis Shrinkage mortar is injected into the
- Concrete frame for upper flange reinforcement 2 Application of I type steel girder
FIG. 30 is a perspective view 2 showing a state in which a concrete structure for an upper flange reinforcement of a pre-cast concrete structure for girder composing according to the present invention is applied to an I-shaped steel girder, FIG. 31 is a perspective view of a pre- Sectional view showing a state in which the upper flange reinforcing concrete casing of the present invention is applied to the I-shaped steel girder.
As shown in these drawings, a method of constructing a precast concrete structure for girder composite according to the present invention comprises the steps of: (I) forming an I-shaped steel girder SG; A
That is, in the method of constructing a precast concrete structure for girder composite according to the present invention, an I-shaped steel girder (SG) is manufactured, and a precast concrete structure for girder synthesis, which is an upper flange- (PC), a pre-cast concrete structure (PC) for girder synthesis is placed on the upper flange (F) of the I-shaped steel girder (SG), and then the precast concrete structure Shrinkage mortar is injected into the formed
- Deck plate combined upper flange reinforcing concrete 2 I type steel girder
FIG. 32 is a perspective view 2 showing a state where a concrete flange for reinforcing upper flange serving as a deck plate of a precast concrete structure for girder composite according to the present invention is applied to an I-shaped steel girder, FIG. 33 is a perspective view 2 is a cross-sectional view showing a state in which a concrete flange for reinforcing an upper flange serving as a deck plate of a cast concrete structure is applied to an I-shaped steel girder.
As shown in these drawings, a method of constructing a precast concrete structure for girder composite according to the present invention comprises the steps of: (I) forming an I-shaped steel girder SG; A
That is, in the method of constructing a precast concrete structure for girder composite according to the present invention, an I-shaped steel girder (SG) is fabricated, and a girder composite for a deck plate of the I-shaped steel girder (SG) After the cast concrete structure PC is manufactured, a pre-cast concrete structure PC for girder synthesis is placed on the upper flange F of the I-shaped steel girder SG and then the precast concrete structure for girder synthesis Shrinkage mortar is injected into the
- Application of precast slab U-shaped steel girder
Fig. 34 is a perspective view showing a state where a precast slab of a pre-cast concrete structure for girder composite according to the present invention is applied to an I-shaped steel girder, Fig. 35 is a perspective view showing a precast slab Sectional view showing a state where the present invention is applied to an I-shaped steel girder.
As shown in these drawings, a method of constructing a precast concrete structure for girder composite according to the present invention comprises the steps of: (I) forming an I-shaped steel girder SG; A
That is, in the method of constructing a precast concrete structure for girder composite according to the present invention, an I-shaped steel girder (SG) is manufactured, and a pre-cast slab After the cast concrete structure PC is manufactured, a pre-cast concrete structure PC for girder synthesis is placed on the upper flange F of the I-shaped steel girder SG and then the precast concrete structure for girder synthesis Shrinkage mortar is injected into the
[Example 3]
- Deck plate combined upper flange reinforcing concrete
FIG. 36 is a front perspective view 3 showing an upper flange reinforcing concrete structure serving as a deck plate for a girder composing pre-cast concrete structure according to the present invention, FIG. 37 is a front elevational view of a deck plate for a girder composing precast concrete structure according to the present invention FIG. 38 is a sectional view 3 showing a concrete structure for reinforcing an upper flange serving as a deck plate for a girder composing precast concrete structure according to the present invention, and FIG.
As shown in these figures, the pre-cast concrete structure PC for girder composite according to the present invention comprises a
That is, the concrete precast concrete structure PC for girder composing according to the present invention is characterized in that the
Especially, the upper flange reinforcing concrete deck plate combined with the deck plate is formed with a plurality of deck plates on the upper concrete flange reinforcing concrete.
Here, the
Also, the
The
A
Particularly, the
The
That is, the pre-cast concrete structure PC for girder composite according to the present invention can be used for reinforcing the upper flange which also serves as a pre-cast deck plate in which the deck plate and the concrete part are provided integrally with the upper flange F of the concrete girder A
In the pre-cast concrete structure PC for composing a girder according to the present invention having the above-described structure, the front end joint 30 of the upper flange F of the concrete girder CG can be constructed as in the conventional general method A mortar is inserted into a
It is also noted that the composite portion of the precast concrete structure (PC) composing the upper flange (F) of the concrete girder (CG) can be configured symmetrically.
- Deck plate combined upper flange reinforcement concrete 1 U type concrete girder application
Fig. 39 is a perspective view showing a state where a concrete flange for reinforcing an upper flange serving as a deck plate of a precast concrete structure for girder composing according to the present invention is applied to a U-shaped concrete girder, Fig. 40 is a perspective view showing a girder composing precast Sectional view showing a state in which a concrete flange for reinforcing upper flange combined with a deck plate of a concrete structure is applied to a U-shaped concrete girder.
As shown in these drawings, a method of constructing a precast concrete structure for girder synthesis according to the present invention includes the steps of: (S) preparing a U-shaped concrete girder (CG); A
That is, the method for constructing a precast concrete structure for girder composite according to the present invention comprises the steps of: fabricating a U-shaped concrete girder (CG), and forming a girder composite for a U-shaped concrete girder After the cast concrete structure PC is manufactured, a pre-cast concrete structure PC for girder synthesis is placed on the upper flange F of the U-shaped concrete girder CG and then the precast concrete structure for girder composition (CG) and a pre-cast concrete structure (PC) for girder synthesis by injecting non-shrinkage mortar into a mortar injection port (40) formed in a PC.
- Deck plate combined upper flange reinforcement concrete 2
FIG. 41 is a front perspective view 4 showing an upper flange reinforcing concrete structure serving as a deck plate for a girder composite pre-cast concrete structure according to the present invention, FIG. 42 is a view FIG. 43 is a cross-sectional view 4 showing the concrete flange for reinforcing the upper flange serving as a deck plate for the girder composite pre-cast concrete structure according to the present invention.
As shown in these figures, the pre-cast concrete structure PC for girder composite according to the present invention comprises a
That is, the concrete precast concrete structure PC for girder composing according to the present invention is characterized in that the
Especially, the upper flange reinforcing concrete deck plate combined with the deck plate is formed with a plurality of deck plates on the upper concrete flange reinforcing concrete.
Here, the
Also, the
The
A
Particularly, the
The
That is, the pre-cast concrete structure PC for girder composite according to the present invention can be used for reinforcing the upper flange which also serves as a pre-cast deck plate in which the deck plate and the concrete part are provided integrally with the upper flange F of the concrete girder A
In the pre-cast concrete structure PC for composing a girder according to the present invention having the above-described structure, the front end joint 30 of the upper flange F of the concrete girder CG can be constructed as in the conventional general method A
It is also noted that the composite portion of the pre-cast concrete structure PC for composing the girders synthesized in the upper flange F of the concrete girder CG can be configured asymmetrically.
- Deck plate combined with upper flange reinforcement concrete 2 U-shaped steel girder
FIG. 44 is a perspective view 2 showing a state where a concrete flange for upper flange combined with a deck plate of a precast concrete structure for girder composite according to the present invention is applied to a U-shaped concrete girder, FIG. 45 is a perspective view 2 is a cross-sectional view showing a state in which a concrete flange for reinforcing the upper flange serving as a deck plate of a cast concrete structure is applied to a U-shaped concrete girder.
As shown in these drawings, a method of constructing a precast concrete structure for girder synthesis according to the present invention includes the steps of: (S) preparing a U-shaped concrete girder (CG); A
That is, the method for constructing a precast concrete structure for girder composite according to the present invention comprises the steps of: fabricating a U-shaped concrete girder (CG), and forming a girder composite for a U-shaped concrete girder After the cast concrete structure PC is manufactured, a pre-cast concrete structure PC for girder synthesis is placed on the upper flange F of the U-shaped concrete girder CG and then the precast concrete structure for girder composition (CG) and a pre-cast concrete structure (PC) for girder synthesis by injecting non-shrinkage mortar into a mortar injection port (40) formed in a PC.
- precast slab
FIG. 46 is a front perspective view 2 showing a precast slab of a pre-cast concrete structure for girder composing according to the present invention, FIG. 47 is a rear perspective view of a precast concrete slab of a girder composite pre- And FIG. 48 is a sectional view 2 showing a precast slab of a precast concrete structure for girder composite according to the present invention.
As shown in these figures, the pre-cast concrete structure PC for girder composite according to the present invention comprises a
That is, the concrete precast concrete structure PC for girder composing according to the present invention is characterized in that the
Here, the
Also, the
The
A
Particularly, the
The
That is, the pre-cast concrete structure PC for girder composite according to the present invention is a precast concrete slab, which is composed of a lower end portion where a girder compositing precast concrete structure PC to be combined with an upper flange F of a concrete girder CG is synthesized And a shear connection member (30) is provided on the girder composing precast concrete structure (PC), and the girder composing precast concrete structure And the
In the pre-cast concrete structure PC for composing a girder according to the present invention having the above-described structure, the front end joint 30 of the upper flange F of the concrete girder CG can be constructed as in the conventional general method A
It is also noted that the composite portion of the pre-cast concrete structure PC for composing the girder synthesized in the upper flange F of the concrete girder CG can be configured symmetrically.
- Application of precast slab U type concrete girder
FIG. 49 is a perspective view showing a state where a precast slab of a precast concrete structure for girder composing according to the present invention is applied to a U-shaped concrete girder, FIG. 50 is a perspective view showing a precast slab of a girder composite pre- Is a sectional view showing a state in which the present invention is applied to a U-shaped concrete girder.
As shown in these drawings, a method of constructing a precast concrete structure for girder synthesis according to the present invention includes the steps of: (S) preparing a U-shaped concrete girder (CG); A
That is, the method for constructing a precast concrete structure for girder composite according to the present invention comprises the steps of: fabricating a U-shaped concrete girder (CG), and forming a pre-cast slab After the cast concrete structure PC is manufactured, a pre-cast concrete structure PC for girder synthesis is placed on the upper flange F of the U-shaped concrete girder CG and then the precast concrete structure for girder composition (CG) and a pre-cast concrete structure (PC) for girder synthesis by injecting non-shrinkage mortar into a mortar injection port (40) formed in a PC.
10: concrete structure 20: concave groove
30: Shear connector 40: Mortar inlet
50: Shear connection F: Upper flange
CG: Concrete girder SG: Steel girder
PC: Pre-cast concrete structure for girder composite
Claims (7)
A concave groove 20 formed at a lower portion of the concrete structure 10 in a longitudinally concave shape;
A shear connector 50 disposed laterally at predetermined intervals in the concave groove 20 of the concrete structure 10;
A shear connector 30 disposed on the upper surface of the concrete structure 10 at regular intervals;
And a mortar injection port (40) formed at predetermined intervals along a longitudinal direction of the concrete structure (10).
Characterized in that the concrete structure (10) is formed as an upper flange reinforcing concrete member or a deck plate combined upper flange reinforcing concrete member or a precast concrete slab.
Wherein the concrete structure (10) is symmetrical or asymmetric.
A step (SII) of manufacturing a precast concrete structure (PC) according to claim 1);
(S III) of mounting a precast concrete structure (PC) on the upper flange (F) of the steel girder (SG));
And a step (SIV) of injecting shrinkage mortar into the precast concrete structure PC to synthesize a steel girder SG and a precast concrete structure PC. Way.
Wherein the steel girder (SG) is composed of an I-shaped steel girder or a U-shaped steel girder.
A step (SII) of manufacturing a precast concrete structure (PC) according to claim 1;
(S III) of mounting a precast concrete structure (PC) on the upper flange (F) of the concrete girder (CG);
And a step (SIV) of injecting non-shrinking mortar into the precast concrete structure PC to synthesize a concrete girder CG and a precast concrete structure PC. Way.
Wherein the concrete girder (CG) is composed of an I-type concrete girder or a U-type concrete girder.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR102280901B1 (en) * | 2020-02-25 | 2021-07-26 | 한밭대학교 산학협력단 | Combined structure for half section slab and girder |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR102280901B1 (en) * | 2020-02-25 | 2021-07-26 | 한밭대학교 산학협력단 | Combined structure for half section slab and girder |
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