WO2008020716A1 - Pont modulaire en acier - Google Patents

Pont modulaire en acier Download PDF

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Publication number
WO2008020716A1
WO2008020716A1 PCT/KR2007/003916 KR2007003916W WO2008020716A1 WO 2008020716 A1 WO2008020716 A1 WO 2008020716A1 KR 2007003916 W KR2007003916 W KR 2007003916W WO 2008020716 A1 WO2008020716 A1 WO 2008020716A1
Authority
WO
WIPO (PCT)
Prior art keywords
hinge
steel
connection end
steel bridge
modular
Prior art date
Application number
PCT/KR2007/003916
Other languages
English (en)
Inventor
Dae-Yong Lee
Jin-Kook Kim
Byung-Ho Choi
Chan-Hee Park
Min-Oh Hwang
Tae-Yang Yoon
Original Assignee
Research Institute Of Industrial Science & Technology
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
Priority claimed from KR1020060077858A external-priority patent/KR100722401B1/ko
Priority claimed from KR1020060077857A external-priority patent/KR100722400B1/ko
Application filed by Research Institute Of Industrial Science & Technology filed Critical Research Institute Of Industrial Science & Technology
Priority to CN2007800378850A priority Critical patent/CN101522993B/zh
Priority to US12/377,738 priority patent/US20100192313A1/en
Priority to JP2009524556A priority patent/JP5666132B2/ja
Publication of WO2008020716A1 publication Critical patent/WO2008020716A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D15/00—Movable or portable bridges; Floating bridges
    • E01D15/12—Portable or sectional bridges
    • E01D15/133—Portable or sectional bridges built-up from readily separable standardised sections or elements, e.g. Bailey bridges
    • 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
    • E01D19/04—Bearings; Hinges
    • 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
    • E01D2101/30—Metal

Definitions

  • the present invention relates to a modular steel bridge. More particularly, the present invention relates to a modular steel bridge that is generated by connecting steel girder segments in a hinge format.
  • a modular steel bridge is a temporary bridge in the simple bridge or continuous bridge format, and it has a structure in which at least two steel girder segments are connected as a single body.
  • the steel girders are generally manufactured as segments so as to increase the conveyance limit and increase installation convenience, and the segments are generally connected by welds or bolts at the construction site.
  • connection of girder segments by welding improves appearance of the entire structure compared to connection by bolts, and simultaneously reduces the overall steel amount since it requires no splice plate.
  • the on-the-spot welding has a large generation frequency of defects, it is difficult to improve defect parts, and it may greatly influence temporary precision because of shrinkage of the welded structure. Also, it has a drawback of increasing the amount of nondestructive inspection because of the reliability of the on-the-spot welding.
  • the connection of girder segments by bolts is less influenced by a technician's skillfulness and job conditions than connection by welding, it is relatively easy to control the quality of connected parts, and hence it is the most frequently used.
  • Connection specifications of the hinge structure have been recently developed so as to improve resolution of the problems of welding connection and bolt connection of girder segments and to apply the connection specifications at an area that requires rapid construction such as for an emergency bridge.
  • connection specifications result in a structure that can resist a load applied to the compression unit of a girder segment through a predetermined reinforcing member, and that can resist a load applied to the tensile unit of the girder segment through a hinge structure.
  • connection specification structure As the hinge structure of the modular steel bridge having the above-noted connection specification structure is connected to the connection part of the girder segment through welding, fatigue failure can be easily generated at the welded part by repeated loads during use of the girder. Also, when a crack occurs in the hinge structure, it is impossible to repair the cracked part and reconstruction of the entire girder is needed.
  • the modular steel bridge having the above-noted connection specification has a problem of manufacturing the hinge structure by using an ultra-thick plate with a thickness of greater than 100mm so as to resist the tensile force applied to the hinge structure.
  • the hinge structure It is difficult to buy the ultra thick plates from domestic shops in Korea, but it is possible to manufacture the hinge structure through casting and forging as a substitute for the ultra thick plate, which however is not a desirable solution since the production cost is substantially increased. Further, the modular steel bridge having the conventional hinge-structured connection specification has a less stable structure, and hence, when the hinge structure generates a crack as a result of repeated loads, the girder structure may dramatically fail.
  • the above information disclosed in this Background section is only for enhancement of understanding of the background of the invention and therefore it may contain information that does not form the prior art that is already known in this country to a person of ordinary skill in the art.
  • SUMMARY OF THE INVENTION The present invention has been made in an effort to provide a modular steel bridge having advantages of preventing fatigue failure that occurs at a welded part of the girder segment and the hinge structure, and allowing easy partial repair of a hinge structure in which a crack is generated.
  • the present invention has been made in another effort to provide a modular steel bridge having advantages of reducing the design thickness of a hinge structure to be less than 100mm and dividing a tensile force mainly applied to the hinge structure under the loading.
  • the hinge assembly includes a connecting plate installed to be connected to the lower flange of the connection end by using bolts and nuts, and a combining member fixedly installed at the connecting plate and complementarily hinge-combined by a hinge pivot.
  • connection end and the connecting plate are formed with a plurality of bolt holes.
  • the combining member includes a first hinge plate being fixedly installed at one connecting plate and having a pair of combining holes to which the hinge pivot is combined, and a second hinge plate being fixedly installed at another connecting plate, having a combining hole to which the hinge pivot is combined, and being combined with the first hinge plate in a concavo-convex manner.
  • the hinge pivot is formed with pin holes into which hinge pins are inserted at both ends thereof.
  • the connecting plate is installed to be connected to the bottom part of the lower flange, and the combining member is installed to be fixed to the bottom part of the connecting plate.
  • the bottom part of the web of the connection end is cut to a predetermined height, and the hinge assembly is installed to be fixed at the cutting part of the web and the top part of the lower flange.
  • the hinge assembly includes: a first hinge plate installed to be fixed at the cutting part of the web of the connection end of one steel girder segment and the top part of the lower flange, and having a pair of combining holes to which a hinge pivot is combined; and a second hinge plate installed to be fixed at the cutting part of the web of the connection end of the other steel girder segment and the top part of the lower flange, having a combining hole to which the hinge pivot is combined, and being combined with the first hinge plate in the concavo-convex manner.
  • the hinge pivot has pin holes into which hinge pins are inserted at both ends thereof.
  • the first hinge plate and the second hinge plate include a combining unit to which the hinge pivot is combined.
  • the combining unit protrudes outside each connection end and is extended between the lower flanges.
  • the reinforcing unit includes a steel rod installed to be connected to the lower flanges of the connection ends.
  • the reinforcing unit includes a fixing member being installed at each lower flange of the connection ends and supporting respective ends of the steel rod, and a nut combined to each end of the steel rod.
  • the reinforcing unit includes a steel plate installed to be connected to each lower flange of the connection ends.
  • the reinforcing unit includes a connecting member being installed at each lower flange and supporting the steel plate.
  • the steel plate is installed to be connected to each connecting member by using bolts and nuts.
  • the steel plate is installed to be welded and fixed to each connecting member.
  • a bearing block is fixedly installed to the upper flange of each connection end and each web.
  • connection ends of the steel girder segments are arranged with a gap therebetween, and the bearing blocks are installed to contact each other.
  • the bearing blocks are is installed to protrude into a gap space between the connection ends.
  • connection end The upper flange of each connection end is cut to a predetermined length, and the top part of the web of each connection end is cut to a predetermined height.
  • Each bearing block is formed to be thicker than the upper flange, and is welded and fixed at the cutting parts of the upper flange and the web.
  • Each steel girder segment includes one of an l-type girder, a box girder, and a [TtyP e girder.
  • FIG. 1 is an exploded perspective view for a modular steel bridge according to a first exemplary embodiment of the present invention.
  • FIG. 2 is a front schematic diagram of FIG. 1.
  • FIG. 3 is a side schematic diagram for a modular steel bridge according to a second exemplary embodiment of the present invention.
  • FIG. 4 is a side schematic diagram for a modular steel bridge according to a third exemplary embodiment of the present invention.
  • FIG. 5 is an exploded perspective view for a modular steel bridge according to a fourth exemplary embodiment of the present invention.
  • FIG. 6 is a front schematic diagram of FIG. 5.
  • FIG. 7 is a front schematic diagram for a modular steel bridge according to a fifth exemplary embodiment of the present invention.
  • FIG. 8 is a front schematic diagram for a modular steel bridge according to a sixth exemplary embodiment of the present invention.
  • FIG. 9 is a front schematic diagram for a modular steel bridge according to a seventh exemplary embodiment of the present invention.
  • FIG. 10 is a side schematic diagram for a modular steel bridge according to an eighth exemplary embodiment of the present invention.
  • FIG. 11 is a side schematic diagram for a modular steel bridge according to a ninth exemplary embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS
  • FIG. 1 is an analyzed perspective view for a modular steel bridge according to a first exemplary embodiment of the present invention
  • FIG. 2 is a front schematic diagram of FIG. 1.
  • the modular steel bridge 100 is a temporary bridge in the simple bridge or continuous bridge format, and has a structure in which at least two steel girder segments 10 are connected with each other.
  • each steel girder segment 10 is manufactured in a factory in advance, are delivered to the construction site, and are then connected.
  • each steel girder segment 10 includes an upper flange 11 , a lower flange 13, and a web 15 for connecting the flanges 11 and 13.
  • each steel girder segment 10 is provided as an l-type girder in which the upper flange 11 and the lower flange 13 are arranged in parallel at the top part and the bottom part of the web 15 that is arranged in the vertical direction.
  • the modular steel bridge 100 includes a bearing block 30 that is installed to be connected to a connection end of each steel girder segment 10, and a hinge assembly 50 attachable to the connection ends so that the connection ends of the steel girder segments 10 may be hinge-connected.
  • the connection ends of the steel girder segments 10 are disposed with a gap therebetween, the bearing blocks 30 are provided to contact each other, and the connection ends of the steel girder segments 10 are hinge-combined by the hinge assembly 50.
  • the bearing blocks 30 resist a compressive force applied at the connection parts of the steel girder segments 10.
  • Each bearing block 30 is a metal plate having the same width as the upper flange 11 of the steel girder segment 10 and a greater thickness than that of the upper flange 11.
  • the bearing block 30 is installed to be fixed with the upper flange 11 of the connection end of the steel girder segment 10 and the web 15.
  • a fixture unit 17 is formed at the upper flange 11 of the connection end of the steel girder segment 10 and the web 15.
  • the fixture unit 17 includes a part that is generated by cutting the upper flange 11 of the connection end of the steel girder segment 10 to a predetermined length and a part that is generated by cutting the top part of the web 15 to a predetermined height.
  • the bearing block 30 has a greater length than the cutting part of the web 15 and is arranged on the fixture unit 17.
  • the bearing block 30 is welded and fixed to the upper flange 11 and the web 15 while being arranged on the fixture unit 17.
  • bearing blocks 30 have a greater length than that of the cutting part of the web 15, the bearing blocks 30 partially protrude into the gap space between the connection ends of the steel girder segments 10 and contact each other.
  • the hinge assembly 50 resists the tensile force applied to the connection parts of the steel girder segments 10.
  • the hinge assembly 50 includes a connecting plate 51 that is installed to be connected to the lower flange 13 of the connection end of a steel girder segment 10, a combining member 53 that is installed to be fixed to the connecting plate 51 , and a hinge pivot 71 for hinge-combining the combining members 53.
  • the connecting plate 51 includes a metal plate having a predetermined length and having the same width as the lower flange 13.
  • the connecting plate 51 is installed to be connected to the bottom of the lower flange 13, and is engaged with the lower flange 13 by bolts 61 and nuts 62. For this, a plurality of bolt holes 51a for engaging the bolts 61 are formed in the connecting plate 51.
  • the lower flange 13 has a plurality of bolt holes 13a that correspond to the bolt holes 51a in the connecting plate 51.
  • the combining member 53 has a form of a plate or a block, desirably has the form of a plate, and is welded and fixed on the center of the bottom of the connecting plate 51.
  • the combining member 53 includes a first hinge plate 55 that is fixedly installed on the bottom of one connecting plate 51 , and a second hinge plate 57 that is fixedly installed on the bottom of the other connecting plate 51 for each steel girder segment 10.
  • the first hinge plate 55 is formed with a pair of combining parts to which the hinge pivot 71 is combined.
  • the combining parts are separately formed with a gap therebetween, and are formed to protrude into the gap space between the connection ends of the steel girder segments 10.
  • Each combining part is formed with a combining hole 55a into which the hinge pivot 71 can be inserted.
  • the second hinge plate 57 is combined with the first hinge plate 55 in the concavo-convex manner, and integrally has a combining part to which the hinge pivot 71 is combined.
  • the combining part is inserted between the combining parts of the first hinge plate 55, and is formed to protrude into the gap space between the connection ends of the steel girder segment 10 in a like manner of the first hinge plate 55.
  • the combining part includes a combining hole 57a into which the hinge pivot 71 can be inserted.
  • reference numeral 71a indicates pin holes that are formed at both ends of the hinge pivot 71
  • reference numeral 73 shows hinge pins that are combined with the pin holes 71a of the hinge pivot 71.
  • the fixture unit 17 of the connection end of each steel girder segment 10 made in the factory is welded to the bearing block 30.
  • the connecting plate 51 to which the first hinge plate 55 is welded is engaged by the bolts 61 and the nuts 62 on the lower flange 13 of the connection end of one steel girder segment 10. Also, the connecting plate 51 to which the second hinge plate 57 is welded is engaged by the bolts 61 and the nuts 62 on the lower flange 13 of the connection end of one steel girder segment 10.
  • the operator inserts the combining part of the second hinge plate 57 between the combining parts of the first hinge plate 55 to match the combining holes 55a and 57a of the first hinge plate 55 and the second hinge plate 57.
  • the hinge pivot 71 is combined with the combining holes 55a and 57a of the first hinge plate 55 and the second hinge plate 57, and hinge pins 73 are inserted into the pin holes 71a of the hinge pivot 71.
  • the girder structure having the connected steel girder segments 10 as a body is generated, and the modular steel bridge 100 according to the exemplary embodiment of the present invention is completed by mounting the girder structure to form the bridge.
  • FIG. 3 is a side schematic diagram for a modular steel bridge according to a second exemplary embodiment of the present invention.
  • the modular steel bridge 200 includes a box girder as a steel girder segment 210.
  • a bearing block 230 is installed to be fixed on the top part of the connection end of the steel girder segment 210, and a pair of hinge assemblies 250 are connected the bottom part of the connection end.
  • FIG. 4 is a side schematic diagram for a modular steel bridge according to a third exemplary embodiment of the present invention.
  • the modular steel bridge 300 includes a
  • the steel girder segment 310 includes a pair of webs 315, the top parts of the webs 315 are connected to a steel plate, and the bottom parts thereof are connected to lower flanges 313.
  • FIG. 5 is an analyzed perspective view for a modular steel bridge according to a fourth exemplary embodiment of the present invention
  • FIG. 6 is a front schematic diagram of FIG. 5.
  • the modular steel bridge 400 includes a bearing block 430 installed at the connection end of each steel girder segment 410, a hinge assembly 450, and a reinforcing unit 470.
  • the modular steel bridge 400 is arranged so that connection ends of steel girder segments 410 may be arranged with a gap therebetween and are hinge-combined by the hinge assembly 450, the bearing blocks 430 are installed to contact each other, and a load applied to the hinge assembly 450 is shared with the reinforcing unit 470.
  • bearing block 430 will not be described since it corresponds to the configuration of the previous exemplary embodiment.
  • the hinge assembly 450 resists the tensile force applied to the connection part of the steel girder segment 410.
  • the hinge assembly 450 is installed to be fixed at a lower flange 413 of the connection end of each steel girder segment 410 and a web 415.
  • the hinge assembly 450 includes a first hinge plate 455 that is fixedly installed at the lower flange 413 of the connection end of one steel girder segment 410 and the web 415, and a second hinge plate 457 that is fixedly installed at the lower flange 413 of the connection end of the other steel girder segment 410 and the web 415.
  • the hinge assembly 450 includes a hinge pivot 461 for hinge-combining the first hinge plate 455 and the second hinge plate 457.
  • the first hinge plate 455 and the second hinge plate 457 are respectively installed and welded to be fixed at the top surface of the lower flange 413 of the connection end of each steel girder segment 410 and web 415.
  • each steel girder segment 410 forms an accepting unit 419 for arranging the first hinge plate 455 and the second hinge plate 457, respectively.
  • Each accepting unit 419 is formed by a space between a part that is generated by cutting the bottom part of the web 415 to a predetermined height and the lower flange 413.
  • first hinge plate 455 and the second hinge plate 457 while being arranged in the respective accepting units 419, are welded and fixed at the top surface of the lower flange 413 and the cutting part of the web 415.
  • the first hinge plate 455 integrally forms a pair of combining units
  • the combining units 455b are formed with a gap therebetween, and protrude outside the connection end of one steel girder segment 410.
  • Each combining unit 455b has a combining hole 455a in which the hinge pivot 461 can be inserted.
  • the second hinge plate 457 is combined with the first hinge plate 455 in the concavo-convex manner, and integrally forms a combining unit 457b to which the hinge pivot 461 is combined.
  • the combining unit 457b is inserted between the combining units 455b of the first hinge plate 455, and protrude outside the connection end of the steel girder segment 410 in a like manner of the first hinge plate 455.
  • the combining unit 457b is formed with a combining hole 457a into which the hinge pivot 461 can be inserted.
  • reference numeral 461a indicates pin holes generated at both ends of the hinge pivot 461
  • reference numeral 463 indicates hinge pins that are combined to the pin holes 461a of the hinge pivot 461.
  • the reinforcing unit 470 shares the tensile force that is mainly applied to the hinge assembly 450.
  • the reinforcing unit 470 includes a steel rod 471 that is installed to be connected to the lower flange 413 of the connection end of each steel girder segment 410, fixing members 473 for supporting respective ends of the steel rod 471 , and nuts 475 that are screw-combined to each end of the steel rod 471.
  • the steel rod 471 receives a substantial part of the tensile force applied to the hinge assembly 450, and is arranged in the length direction of the steel girder segment 410 with the connection ends of the facing steel girder segments 410 at the center.
  • a screw thread 471a for engaging the nuts 475 is formed at each end of the steel rod 471.
  • the fixing member 473 is installed to be welded and fixed at the bottom part of the lower flange 413 of the connection end of each steel girder segment 410.
  • Each fixing member 473 is formed with a hole 473a into which an end of the steel rod 471 is inserted.
  • each fixing member 473 includes a vertical steel plate that is vertically fixed on the bottom of the lower flange 413, and a side steel plate of a triangular rib form that is fixedly installed at both ends of the vertical steel plate and the bottom of the lower flange 413.
  • the fixing member 473 can also be formed in a box form without being restricted to the above-described configuration.
  • the steel girder segments 410 are manufactured in the factory and are then delivered to the construction site.
  • the bearing block 430 is welded on a fixture unit 417 of the connection end of each steel girder segment 410.
  • first hinge plate 455 is arranged at the accepting unit 419 of the connection end of one steel girder segment 410, and the first hinge plate 455 is welded on the top part of the lower flange 413 and a cutting part of the web 415.
  • second hinge plate 457 is arranged at the accepting unit 419 of the connection end of another steel girder segment 410, and the second hinge plate 457 is welded on the top part of the lower flange 413 and a cutting part of the web 415.
  • the fixing member 473 is welded on the bottom of the lower flange 413 of the connection end of each steel girder segment 410. In this state, the combining holes 455a and 457a of the combining units 455b and 457b are matched by inserting the combining unit 457b of the second hinge plate 457 between the combining units 455b of the first hinge plate 455.
  • the hinge pivot 461 is combined with the combining holes 455a and 457a of the first hinge plate 455 and the second hinge plate 457, and the hinge pins 463 are inserted into the pin holes 461a of the hinge pivot 461.
  • the ends of the steel rod 471 are inserted into the holes 473a of the fixing members 473 such that both ends of the steel rod 471 are combined with the fixing member 473.
  • a nut 475 is combined with each end of the steel rod 471 and is then threaded thereon, and a girder structure in which at least two steel girder segments 410 are integrally connected is completed.
  • the construction of the modular steel bridge 400 according to the exemplary embodiment of the present invention is finished. Accordingly, since the modular steel bridge 400 has a reinforcing unit
  • FIG. 7 is a front schematic diagram for a modular steel bridge according to a fifth exemplary embodiment of the present invention.
  • the modular steel bridge 500 includes a hinge assembly 550 that is formed for a combining unit 555b of a first hinge plate 555 and a combining unit 557b of a second hinge plate 557 to be extended between lower flanges 513.
  • the combining unit 555b of the first hinge plate 555 and the combining unit 557b of the second hinge plate 557 protrude outside the connection ends of the steel girder segments 510 and extend to an area between the lower flanges 513 in a like manner of the previous exemplary embodiment.
  • the thickness of the combining units 555b and 557b of the first hinge plate 555 and the second hinge plate 557 is greater than the thickness of the other part excluding the combining units 555b and 557b by the thickness of the lower flange 513.
  • the tensile force applied to the hinge assembly 550 is more efficiently resisted since the combining unit 555b of the first hinge plate 555 and the combining unit 557b of the second hinge plate
  • FIG. 8 is a front schematic diagram for a modular steel bridge according to a sixth exemplary embodiment of the present invention.
  • the modular steel bridge 600 can include a reinforcing unit 670 including a steel plate 671 that is installed to be connected to the lower flange 613 of the connection end of each steel girder segment 610.
  • the reinforcing unit 670 includes connecting members 673 for supporting respective ends of the steel plate 671 , and the connecting members 673 are installed to be welded and fixed at the bottom surface of the lower flanges 613 of the connection ends of the steel girder segments 610.
  • the steel plate 671 is integrally connected to the connecting members 673 by engagement of bolts 675 and nuts 676.
  • FIG. 9 is a front schematic diagram for a modular steel bridge according to a seventh exemplary embodiment of the present invention.
  • the modular steel bridge 700 can be configured with a reinforcing unit 770 in which a steel plate 771 is welded to connecting members 773 on the basis of the configuration of the previous exemplary embodiment.
  • the connecting members 773 are installed to be welded and fixed at the bottom part of lower flanges 713, and the steel plate 771 is installed to be welded and fixed at the bottom part of the connecting members 773.
  • FIG. 10 is a side schematic diagram for a modular steel bridge according to an eighth exemplary embodiment of the present invention.
  • the modular steel bridge 800 includes a box girder as a steel girder segment 810.
  • FIG. 11 is a side schematic diagram for a modular steel bridge according to a ninth exemplary embodiment of the present invention.
  • the modular steel bridge 900 can adopt a F]- type girder as a steel girder segment 910.
  • the steel girder segment 910 includes a pair of webs 915, a steel plate is integrally connected to the top part of the webs 915, and a lower flange 913 is integrally connected to each bottom part thereof.
  • a bearing block 930 is installed to be fixed at the top part of the connection end of the steel girder segment 910, and a hinge assembly 950 is installed to be fixed at each lower flange 913 of the connection end.
  • the hinge assembly is attachable to the steel girder segment, the steel girder segment can be reused. Further, when a crack occurs at the hinge assembly because of a repeated load while using the girder, the maintenance fee of the girder can be reduced since it is easy to exchange the cracked hinge assembly.

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

Abstract

L'invention concerne un pont modulaire en acier conçu par combinaison d'au moins deux segments de poutre d'acier, et comprenant un bloc de support monté de manière à être connecté à un rebord supérieur d'une extrémité de connexion de chaque segment de poutre d'acier et une bande, ainsi qu'un ensemble charnière monté pour être rattaché au rebord inférieur de chaque extrémité de connexion et connectant par articulation les extrémités de connexion.
PCT/KR2007/003916 2006-08-17 2007-08-16 Pont modulaire en acier WO2008020716A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN2007800378850A CN101522993B (zh) 2006-08-17 2007-08-16 组合式钢桥
US12/377,738 US20100192313A1 (en) 2006-08-17 2007-08-16 Modular steel bridge
JP2009524556A JP5666132B2 (ja) 2006-08-17 2007-08-16 組立式鋼橋梁

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR1020060077858A KR100722401B1 (ko) 2006-08-17 2006-08-17 조립식 강교량
KR10-2006-0077858 2006-08-17
KR1020060077857A KR100722400B1 (ko) 2006-08-17 2006-08-17 강재거더 세그먼트 연결 구조
KR10-2006-0077857 2006-08-17

Publications (1)

Publication Number Publication Date
WO2008020716A1 true WO2008020716A1 (fr) 2008-02-21

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Application Number Title Priority Date Filing Date
PCT/KR2007/003916 WO2008020716A1 (fr) 2006-08-17 2007-08-16 Pont modulaire en acier

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US (1) US20100192313A1 (fr)
JP (1) JP5666132B2 (fr)
WO (1) WO2008020716A1 (fr)

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WO2019202209A1 (fr) * 2018-04-20 2019-10-24 Konecranes Global Corporation Joint d'épissure d'une poutre principale de grue

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JP6230526B2 (ja) * 2014-12-24 2017-11-15 三菱電機株式会社 梁継手およびそれを用いたメンブレンリフレクタ
JP6320500B1 (ja) * 2016-12-08 2018-05-09 株式会社高知丸高 橋梁の主桁、該主桁を備えた橋梁及び該橋梁の施工方法
CL2022000486A1 (es) * 2022-02-28 2022-09-09 Diego Alexis Garces Garces Un puente modular del tipo mecano para tráfico de alto tonelaje.
DE102022133107A1 (de) * 2022-12-13 2024-06-13 Krauss-Maffei Wegmann Gmbh & Co. Kg Brückenelement mit Kuppelvorrichtung

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