KR20140102842A - Bridge construction method using steel I girder with increased compression resistance - Google Patents
Bridge construction method using steel I girder with increased compression resistance Download PDFInfo
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- KR20140102842A KR20140102842A KR1020130016213A KR20130016213A KR20140102842A KR 20140102842 A KR20140102842 A KR 20140102842A KR 1020130016213 A KR1020130016213 A KR 1020130016213A KR 20130016213 A KR20130016213 A KR 20130016213A KR 20140102842 A KR20140102842 A KR 20140102842A
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- girder
- concrete
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- flange
- 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
-
- 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
- E01D2/02—Bridges characterised by the cross-section of their bearing spanning structure of the I-girder type
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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
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/268—Composite concrete-metal
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a bridge construction method using a steel girder having increased compressive resistance,
In the simple bridge, after the high-strength concrete of the high-strength concrete upper flange synthesized on the steel I girder steel upper flange is cured, the concrete upper flange construction form is demolished and the slab construction form is installed between the high- And the slab concrete is laid and cured. In addition, additional tensile strength reinforcement reinforcement reinforcement is provided in the upper flange portion of the concrete to increase the tensile resistance,
In the continuous bridge, the high-strength concrete of the lower flange of the closed-section concrete placed under the closure section between the upper flange of the concrete and the lower flange of the larger width, which is synthesized in the upper flange of the steel I girder, is cured and then the concrete upper and lower flange construction dies And the slab concrete is placed and cured to increase the compressive resistance of the concrete upper and lower flanges to reduce the steel material requirement of the steel I girder, I girder upper flange is capable of easily adjusting the width and thickness by controlling the formwork so that it can be applied according to the conditions of the building and the method of constructing the steel girder bridge with increased compressive resistance .
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a bridge construction method using a steel girder having increased compressive resistance,
In the simple bridge, after the high-strength concrete of the high-strength concrete upper flange synthesized on the steel I girder steel upper flange is cured, the concrete upper flange construction form is demolished and the slab construction form is installed between the high- And the slab concrete is laid and cured. In addition, additional tensile strength reinforcement reinforcement reinforcement is provided in the upper flange portion of the concrete to increase the tensile resistance,
In the continuous bridge, the high-strength concrete of the lower flange of the closed-section concrete placed under the closure section between the upper flange of the concrete and the lower flange of the larger width, which is synthesized in the upper flange of the steel I girder, is cured and then the concrete upper and lower flange construction dies And the slab concrete is placed and cured to increase the compressive resistance of the concrete upper and lower flanges to reduce the steel material requirement of the steel I girder, I The upper flange of the concrete installed on the upper surface of the girder can be easily adjusted and constructed by adjusting the width and thickness of the formwork. will be.
The steel I type girder bridge is a girder which is easy to construct because it is easy to construct, assemble and assemble the steel I girder. However, since the sectional rigidity of the I girder is weak and the arrangement interval of the girders should be tightened, to be.
Also, in order to increase the section stiffness of the I girder, there is a case where the upper flange is combined with concrete to construct it, but the construction process is very complicated and is not applied well.
That is, in the synthesis of concrete on the upper flange of the steel I girder, when the I girder is manufactured in the factory, and then the concrete is synthesized on the upper flange in the factory, fabrication, transportation, When the concrete is synthesized on the upper flange at the bridge construction site, it is not well applied to the damage of the painting and the increase of the weight of the loading on the steel I girder which is carried to the exterior by finishing to the exterior painting.
Also, there is a problem that the joint between the unit segments of the steel I girder has to be synthesized with concrete after the completion of the installation, so that the construction is very difficult and it is difficult to construct the steel I girder bridge as originally intended.
Therefore, it is necessary to develop a method that can effectively combine high-strength concrete with upper flange and lower flange that can increase compressive resistance of steel I girder even though it is constructed in each segment when manufacturing, transporting and mounting.
SUMMARY OF THE INVENTION The present invention has been made to solve the conventional problems as described above, and has the following objectives.
In the present invention, in the case of simple bridge, after the high-strength concrete of the upper flange of the concrete synthesized on the upper flange of the steel I girder steel is cured, the concrete upper flange construction form is demolished and the slab construction form The reinforced concrete is placed and cured. The nogative moment region is placed on the upper flange of the concrete to further increase the tensile resistance by further reinforcing tensile strength reinforcement for the tensile strength And an object of the present invention is to provide a bridge construction method using an increased steel I girder.
In the continuous bridge, the high-strength concrete of the joined-up cross-section concrete lower flange inserted between the upper and lower flanges of the composite upper and lower flanges synthesized on the upper flange of the steel I girder is cured and then the concrete upper and lower flange construction The steel material requirement of the steel I girder is reduced by increasing the compressive resistance of the upper and lower flanges of the concrete by laying the reinforcing bars and installing and curing the slab concrete by installing the slab construction form between the upper concrete flanges with large width, The upper flange of the concrete installed on the upper side of the steel I girder can be easily adjusted and controlled by adjusting the width and thickness of the formwork. Therefore, the bridge construction method using the steel I girder with increased compressive resistance, The purpose is to provide.
In order to accomplish the above object, the present invention is implemented by the following embodiments.
The present invention relates to a method of constructing a bridge using a steel girder having increased compressive resistance
In the method of constructing a simple bridge (S100)
Step S110 of fabricating a steel I girder at a factory and bringing it into the site;
Assembling the steel I girder and mounting the steel I girder in a crane (S120);
(S130) a concrete upper flange installation form is installed on the upper flange of the I-girder and the upper concrete flange of the concrete is installed;
Step S140 of placing and curing the high strength concrete for the upper concrete flange on the upper flange of the steel I girder;
A step S150 of disassembling the concrete upper flange construction form after the high strength concrete for the upper concrete flange is cured, installing the slab construction formwork and laying the slab reinforcement;
Step S160 of placing and curing the slab concrete on the upper surface of the concrete upper flange of the steel I girder;
A step S170 of disassembling the slab construction form after the slab concrete of the steel I girder is cured and constructing the bridge appendage and the pavement;
And starting the public use of the vehicle (S180).
The present invention provides a bridge construction method using a steel girder having increased compressive strength
In the method of constructing the continuous bridge (S300)
(S310);
Assembling the steel I girder and mounting the steel girder to the alternating / piercing bridge with a crane (S320);
(S330) a concrete upper flange installation form is installed on the upper side of the upper and lower flanges of the assembled and mounted steel I girder and the upper flange reinforcing steel is installed;
(S340) a reinforcing bar for increasing the tensile strength of the tensile strength of the mandrel portion is additionally provided on the upper surface of the upper flange of the steel material I girder of the assembled and mounted parent section.
(S350) of placing and curing the high strength concrete for the upper flange of the concrete on the upper flange of the steel I girder;
A step S360 of disassembling the concrete upper flange construction form after the high strength concrete for the upper concrete flange is cured, installing the slab construction formwork, and arranging the slab reinforcement (S360);
A step (370) of placing and curing the slab concrete on the upper surface of the concrete upper flange of the steel I girder;
(S380) of disassembling the slab construction form after the slab concrete of the steel I girder is cured and constructing the bridge appendage and the pavement;
(S390) of starting public use of the vehicle.
The present invention provides a bridge construction method using a steel girder having increased compressive strength
And the upper flange outer portion of the span outer side steel I girder is constructed of a steel form integrally joined to the girder.
The present invention provides a bridge construction method using a steel girder having increased compressive strength
The concrete upper flange synthesized and installed on the upper side of the steel I girder upper flange is characterized in that its width and thickness are adjusted according to the degree of stress.
The present invention provides a bridge construction method using a steel girder having increased compressive strength
The upper flange of the steel I girder is installed in the lower flange with a cross section between the steel I girder, and the lower flange of the concrete is installed and constructed so as to be thicker than the upper flange of the concrete installed in the upper flange.
The present invention provides a bridge construction method using a steel girder having increased compressive strength
Before placing the high strength concrete on the upper flange of the steel I girder, a temporary vent is installed at the lower part of the steel girder I girder section for a period of rositive moment, and the steel I girder is raised from the upper side of the temporary vent by the hydraulic jack, Casting, pouring concrete, and lowering the hydraulic jack after curing.
The present invention provides a bridge construction method using a steel girder having increased compressive strength
Before installing high-strength concrete on the upper part of the steel I girder, temporary venting is installed at the lower part of the steel girder I girder at intervals, and a hydraulic jack is installed on the upper part of the temporary vent to raise the steel I girder to a certain height. When the hydraulic jack is lowered after curing and slab concrete is cured, additional compressive resistance is introduced to the high-strength concrete upper flange and the bottom plate slab synthesized on the upper side of the steel I girder in the section of the momentum section to increase the rigidity of the girder and the slab So as to be able to perform the operation.
The present invention has the following effects with the above-described configuration.
In the present invention, in the case of simple bridge, after the high-strength concrete of the upper flange of the concrete synthesized on the upper flange of the steel I girder steel is cured, the concrete upper flange construction form is demolished and the slab construction form It is possible to increase the tensile resistance by placing more reinforcing bars for reinforcing tensile strength in the upper part flange of concrete part.
In the continuous bridge, the high-strength concrete of the joined-up cross-section concrete lower flange inserted between the upper and lower flanges of the composite upper and lower flanges synthesized on the upper flange of the steel I girder is cured and then the concrete upper and lower flange construction The steel material requirement of the steel I girder is reduced by increasing the compressive resistance of the upper and lower flanges of the concrete by laying the reinforcing bars and installing and curing the slab concrete by installing the slab construction form between the upper concrete flanges with large width, The upper flange of the concrete installed on the upper side of the steel I girder has the effect of increasing the applicability according to the site conditions because the width and thickness can be easily adjusted and controlled by controlling the formwork.
Therefore, it is possible to reduce the construction cost by reducing the amount of steel material of the steel I girder due to the increase in compressive resistance of the upper and lower flanges of the concrete.
Also, it has an effect of reducing the construction time by increasing the applicability according to the site conditions.
In addition, additional tensile strength reinforcement reinforcement is added to the upper part of the concrete upper part of the concrete to increase the tensile resistance, so that a safe and sophisticated bridge can be constructed.
1 to 8 are flowcharts showing a construction process in a simple bridge,
9 to 16 are flowcharts showing a construction process in continuous bridge,
Figs. 17 and 18 are views showing another example of pouring a concrete on an upper surface of a steel material I girder and a slab, lifting a steel material I girder during curing, and the following.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The applicants will now describe in detail the construction of the present embodiments with reference to the accompanying drawings.
Detailed descriptions of well-known functions and constructions that may be unnecessarily obscured by the gist of the present invention will be omitted.
The present invention relates to a method for constructing a simple bridge (simple bridge) using a steel I girder, wherein both ends of the main girder or the main truss are supported by the support of a simple beam (S100);
And a method of constructing a continuous bridge using a steel I girder (continuous bridge: a bridge in which the main girder structure is continuous over two spans) (S300).
A method (S100) for constructing a simple bridge using a steel I girder
Step S110 of fabricating a steel I girder at a factory and bringing it into the site;
Assembling the steel I girder and mounting the steel I girder in a crane (S120);
(S130) a concrete upper flange installation form is installed on the upper flange of the I-girder and the upper concrete flange of the concrete is installed;
Step S140 of placing and curing the high strength concrete for the upper concrete flange on the upper flange of the steel I girder;
A step S150 of disassembling the concrete upper flange construction form after the high strength concrete for the upper concrete flange is cured, installing the slab construction formwork and laying the slab reinforcement;
Step S160 of placing and curing the slab concrete on the upper surface of the concrete upper flange of the steel I girder;
A step S170 of disassembling the slab construction form after the slab concrete of the steel I girder is cured and constructing the bridge appendage and the pavement;
And a step S180 of starting public use of the vehicle.
In this simple bridge, a method of synthesizing and constructing concrete on the upper flange is most easily performed by using the existing method of manufacturing, transporting and passing the steel I girder as it is and placing the steel I girder in alternation.
Steel I girder is constructed and transported in the same way as the existing construction method, and then the method for constructing the concrete flange on the steel upper flange is to install the concrete upper flange construction form between the steel upper flanges, The high-strength concrete for the upper concrete flange, which is wider than the upper flange of the steel I girder, is installed, cured, and installed.
Steel I girder After the high strength concrete of the upper concrete flange with the large width synthesized on the steel upper flange is cured, the concrete upper formwork form is demolished and the slab form form is installed between the upper concrete flange Slab concrete is poured and cured.
In the above method, the high strength concrete of the upper flange of the concrete synthesized in the section of the upper section of the upper flange of the steel I girder increases the compressive resistance so that the amount of steel used in the steel I girder is reduced, Thereby making it possible to reduce the length of the shaft.
Also, there is an advantage in that it can be installed much simpler than the method of synthesizing and constructing high strength concrete on the upper flange of the steel material I girder before resting at a factory or a construction site.
In other words, after the construction, transportation, and installation of the existing steel I girder, the concrete upper flange having a large width on the upper flange of the steel girder before the slab construction is installed in the same manner as the slab construction process. It is possible to simplify and reduce the cost.
The use of a wide concrete upper flange formwork can be substituted by a slab construction formwork, so that the additional use of materials is very small and is very economical because only the workforce is applied. In other words, there is little input of cost compared to the effect, so the additional cost of construction cost is small and it is a way to construct a very efficient bridge.
In addition, the upper flange of concrete can be easily installed at any time by adjusting the width and thickness of the concrete according to the conditions of the site. Therefore, it is more applicable than other construction methods.
Also, before placing high strength concrete on the upper part of the steel I girder, temporary venting is installed at the lower part of the steel girder I girder at intervals and the hydraulic jack is installed on the upper part of the temporary vent to raise the steel I girder to a certain height, ㆍ When the hydraulic jack is lowered after curing and then slab concrete is laid and cured, additional compressive resistance is introduced into the high-strength concrete upper flange and bottom plate slab synthesized on the upper side of the steel girder in the section of the uppermost section to increase the stiffness of the girder and slab Can be increased.
A method (S300) for constructing continuous bridges using a steel I girder
A step of manufacturing a steel I girder at a factory and bringing it into the field (S310);
Assembling the steel I girder and mounting the steel girder to the alternating / piercing bridge with a crane (S320);
(S330) a concrete upper flange installation form is installed on the upper side of the upper and lower flanges of the assembled and mounted steel I girder and the upper flange reinforcing steel is installed;
(S340) a reinforcing bar for increasing the tensile strength of the tensile strength of the mandrel portion is additionally provided on the upper surface of the upper flange of the steel material I girder of the assembled and mounted parent section.
(S350) of placing and curing the high strength concrete for the upper flange of the concrete on the upper flange of the steel I girder;
A step S360 of disassembling the concrete upper flange construction form after the high strength concrete for the upper concrete flange is cured, installing the slab construction formwork, and arranging the slab reinforcement (S360);
Placing and curing the slab concrete on the upper surface of the concrete upper flange of the steel I girder (S370);
(S380) of disassembling the slab construction form after the slab concrete of the steel I girder is cured and constructing the bridge appendage and the pavement;
And commencing the public use of the vehicle (S390).
In the continuous bridge
In the construction of the steel I girder, it is possible to construct the method of synthesizing and constructing the concrete on the upper and lower flanges most easily by utilizing the existing methods of making, transporting and passing the steel I girder alternately.
It is a construction method to synthesize concrete flange on upper and lower flanges of steel after fabricating, transporting and mounting steel I girder in the same way as the existing construction method. It is used for concrete upper and lower flange construction form between steel upper and lower flange. And high-strength concrete for the upper concrete flange with a width larger than the upper flange of the steel I girder is installed on the upper and lower flanges of the steel I girder, and the lower flange is closed with the lower flange between the upper and lower flanges. Install and cure high strength concrete for the lower flange of the closed section concrete.
In this case, tensile resistance is increased by additionally placing additional reinforcing bars for increasing the tensile strength of the tensile strength in the upper portion of the concrete upper portion of the concrete.
After the high-strength concrete of the joined-up section concrete lower flange inserted into the cross section between the upper flange and the lower flange of the large composite upper flange synthesized on the steel I girder upper flange is cured, the concrete upper and lower flange construction dies are removed The slab construction formwork is installed between the upper concrete flanges with large width, the reinforcing bars are installed and the slab concrete is poured and cured.
In the above method, the high-strength concrete of the upper concrete flange having a large width, which is synthesized in the upper end portion of the upper flange portion of the steel I girder, increases compressive resistance and the compressive force acts on the lower flange portion. , It is possible to reduce the amount of steel material used in the steel I girder, to reduce the thickness of the steel girder, to reduce the length of the steel girder, to reduce the length and length of the steel girder, and to increase the high strength between the upper flange of the steel girder and the lower flange of the steel girder section It is advantageous in that it can be constructed much simpler than the method of synthesizing and constructing concrete.
Before the slab construction, the upper flange of the upper part of the steel I girder and the lower flange of the lower section of the upper section of the upper section of the upper section of the momentum concrete before the slab construction are constructed before the slab installation. Because it is installed and installed first, construction is not complicated and there is not much increase in cost.
The use of a wide concrete upper flange formwork can be substituted by a slab construction formwork, so that the additional use of materials is very small and is very economical because only the workforce is applied. In other words, there is little input of cost compared to the effect, so the additional cost of construction cost is small and it is a way to construct a very efficient bridge.
In addition, the upper flange of the concrete can be easily applied at any time by adjusting the form of the width and the thickness of the flange according to the conditions of the site. Therefore, the applicability of the flange is superior to that of other construction methods. The cross - sectional concrete bottom flange is constructed to be thicker than the upper flange concrete thickness to effectively increase the compression resistance at the lower part of the momentum section.
In addition, as described above, the high-strength concrete upper flange is synthesized in the upper flange, and the high-strength concrete is combined with the closed flange in the lower flange in the moment portion of the inner flank, .
In this case, the lower flange of the closed section concrete, which is applied to the lower flange of the section of the momentum, can be selectively applied to the continuous bridge, so that it may be omitted if the bridge has fewer moment.
It is preferable that the upper flange outer portion of the span outer side steel I girder is formed of a steel form integrally joined to the girder.
It is preferable that the width and the thickness of the concrete upper flange synthesized and applied on the upper side of the upper flange of the steel I girder are adjusted according to the degree of stress.
In the above, it is preferable that the lower flange of the steel I girder is installed in the lower flange with a cross section between the steel I girder and the lower flange of the concrete is installed and thicker than the upper flange of the concrete applied to the upper flange.
In addition, before placing the high strength concrete on the upper flange of the steel I girder, temporary venting is installed at the lower part of the steel girder I girder at a fixed interval, and the steel I girder is raised from the upper side of the temporary vent to the hydraulic jack, ㆍ Curing, concrete pouring ㆍ It is desirable to lower the hydraulic jack after curing.
Also, before placing high strength concrete on the upper part of the steel I girder, temporary venting is installed at the lower part of the steel girder I girder at intervals and the hydraulic jack is installed on the upper part of the temporary vent to raise the steel I girder to a certain height, ㆍ When the hydraulic jack is lowered after curing and then slab concrete is laid and cured, additional compressive resistance is introduced into the high-strength concrete upper flange and bottom plate slab synthesized on the upper side of the steel girder in the section of the uppermost section to increase the stiffness of the girder and slab Can be increased.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. Will be clear to those who have knowledge of.
S100: How to construct simple bridge using steel I girder
2200: Method of constructing continuous bridge using steel I girder
Claims (7)
Step S110 of fabricating a steel I girder at a factory and bringing it into the site;
Assembling the steel I girder and mounting the steel I girder in a crane (S120);
(S130) a concrete upper flange installation form is installed on the upper flange of the I-girder and the upper concrete flange of the concrete is installed;
Step S140 of placing and curing the high strength concrete for the upper concrete flange on the upper flange of the steel I girder;
A step S150 of disassembling the concrete upper flange construction form after the high strength concrete for the upper concrete flange is cured, installing the slab construction formwork and laying the slab reinforcement;
Step S160 of placing and curing the slab concrete on the upper surface of the concrete upper flange of the steel I girder;
A step S170 of disassembling the slab construction form after the slab concrete of the steel I girder is cured and constructing the bridge appendage and the pavement;
And a step (S180) of starting public use of the vehicle.
(S310);
Assembling the steel I girder and mounting the steel girder to the alternating / piercing bridge with a crane (S320);
(S330) a concrete upper flange installation form is installed on the upper side of the upper and lower flanges of the assembled and mounted steel I girder and the upper flange reinforcing steel is installed;
(S340) a reinforcing bar for increasing the tensile strength of the tensile strength of the mandrel portion is additionally provided on the upper surface of the upper flange of the steel material I girder of the assembled and mounted parent section.
(S350) of placing and curing the high strength concrete for the upper flange of the concrete on the upper flange of the steel I girder;
A step S360 of disassembling the concrete upper flange construction form after the high strength concrete for the upper concrete flange is cured, installing the slab construction formwork and laying the slab reinforcement (S360);
A step (370) of placing and curing the slab concrete on the upper surface of the concrete upper flange of the steel I girder;
(S380) of disassembling the slab construction form after the slab concrete of the steel I girder is cured and constructing the bridge appendage and the pavement;
And a step (S390) of starting public use of the vehicle. A method of constructing a bridge using an I girder with increased compressive resistance.
Wherein the upper flange outer portion of the span outer side steel I girder is constructed of a steel form integrally joined to the girder.
A method of constructing a bridge using an I girder with increased compressive resistance, characterized in that the upper flange of the concrete synthesized and installed on the upper flange of the steel I girder has a width and a thickness adjusted according to the degree of stress.
Wherein a lower flange of the steel I girder is installed in the lower flange with a cross section between the steel I girder and the lower flange of the concrete is installed and made thicker than the upper flange of the concrete installed in the upper flange. Construction method of bridges using girders.
Prior to placing high strength concrete on the upper flange of the steel I girder, temporary venting is installed at the lower part of the steel girder I girder at constant intervals, and the steel I girder is raised from the upper side of the temporary vent by the hydraulic jack, and then high strength concrete is cast and cured Wherein the hydraulic jack is lowered after concrete pouring and curing, and a method of constructing a bridge using a steel girder having increased compressive resistance.
Before installing high-strength concrete on the upper part of the steel I girder, temporary venting is installed at the lower part of the steel girder I girder at intervals, and a hydraulic jack is installed on the upper part of the temporary vent to raise the steel I girder to a certain height. When the hydraulic jack is lowered after curing and slab concrete is cured, additional compressive resistance is introduced to the high-strength concrete upper flange and the bottom plate slab synthesized on the upper side of the steel I girder in the section of the momentum section to increase the rigidity of the girder and the slab Wherein the reinforcing member is made of a steel material having an increased compressive strength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020130016213A KR20140102842A (en) | 2013-02-15 | 2013-02-15 | Bridge construction method using steel I girder with increased compression resistance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020130016213A KR20140102842A (en) | 2013-02-15 | 2013-02-15 | Bridge construction method using steel I girder with increased compression resistance |
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| KR20140102842A true KR20140102842A (en) | 2014-08-25 |
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| KR1020130016213A KR20140102842A (en) | 2013-02-15 | 2013-02-15 | Bridge construction method using steel I girder with increased compression resistance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060192A (en) * | 2017-05-04 | 2017-08-18 | 浙江绿筑集成科技有限公司 | A kind of steel plate combined shear wall being made up of H profile steel and steel plate and preparation method |
| CN115125840A (en) * | 2022-05-29 | 2022-09-30 | 中交二公局第三工程有限公司 | Construction method of modified high-strength concrete corrugated roof combined bridge deck |
-
2013
- 2013-02-15 KR KR1020130016213A patent/KR20140102842A/en not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060192A (en) * | 2017-05-04 | 2017-08-18 | 浙江绿筑集成科技有限公司 | A kind of steel plate combined shear wall being made up of H profile steel and steel plate and preparation method |
| CN115125840A (en) * | 2022-05-29 | 2022-09-30 | 中交二公局第三工程有限公司 | Construction method of modified high-strength concrete corrugated roof combined bridge deck |
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