CN114319066A - Spliced steel truss box girder and mounting method thereof - Google Patents
Spliced steel truss box girder and mounting method thereof Download PDFInfo
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- CN114319066A CN114319066A CN202111461151.3A CN202111461151A CN114319066A CN 114319066 A CN114319066 A CN 114319066A CN 202111461151 A CN202111461151 A CN 202111461151A CN 114319066 A CN114319066 A CN 114319066A
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- 239000010959 steel Substances 0.000 title claims abstract description 118
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- 238000009434 installation Methods 0.000 claims abstract description 17
- 238000012423 maintenance Methods 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 9
- 230000002349 favourable effect Effects 0.000 description 4
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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Abstract
The invention discloses a spliced steel truss box girder and an installation method thereof, wherein the box girder comprises the following components: the opening of the two U-shaped support plates is oppositely arranged to form an accommodating cavity, the first side plates of the two support plates are detachably fixed through a fixing component to form a bottom plate of the box girder, the second side plates of the two support plates are butted to form a top plate of the box girder, and the bottom plates of the two support plates form side plates of the box girder; the hoisting components are detachably fixed on the two support plates; the steel truss is detachably fixed in the accommodating cavity, the steel truss is arranged in the length direction of the support plate in a through manner, and a plurality of prestressed steel bundles are fixed inside the steel truss. The invention solves the technical problems of inconvenient hoisting and difficult later maintenance of the box girder in the prior art, is beneficial to the installation and the transportation of the box girder, greatly reduces the workload and various costs, and improves the bearing capacity of the box girder because the prestressed steel beam and the steel truss reach the active stress state and bear the load together with the box girder.
Description
Technical Field
The invention relates to the field of building construction, in particular to a spliced steel truss box girder.
Background
The construction of box girder is the segmentation pouring, the initial construction section of pouring box girder on concrete cushion cap is first the construction section, namely first construction section, set up bottom form and side form, pour bottom plate and both sides board of this construction section again, set up full hall scaffold on the bottom plate afterwards, and set up the top form at the scaffold top, then pour the roof, along with the continuous development of modernized transportation cause, have higher and higher requirements to span, quality and economic performance of bridge, often hardly seek a better balance point between the mechanical properties and the economic nature of structure when adopting single material.
Need assemble it usually in the present box girder template work progress, it is not enough to lead to a large amount of bridge bearing capacity that standard design load standard value is lower, use the short period structural damage that easily appears, carry out assembling of template according to the geometric shape of external mold, adopt the bracing to consolidate, carry out the monolithic at last, finally form the concrete box girder, integrated into one piece's box girder brings very big difficulty for the construction when carrying out hoist and mount installation and transporting, the steel truss improves box girder bearing capacity through self intensity, rigidity and prestressing force, can continuously reduce the bearing capacity of box girder in the use, be unfavorable for the maintenance to the box girder.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides the spliced steel truss box girder, and solves the technical problems that the box girder in the prior art is inconvenient to hoist and difficult to maintain in the later period.
In a first aspect, the invention discloses a spliced steel truss box girder, which comprises:
the opening of the two U-shaped support plates is oppositely arranged to form an accommodating cavity, the first side plates of the two support plates are detachably fixed through a fixing component to form a bottom plate of the box girder, the second side plates of the two support plates are butted to form a top plate of the box girder, and the bottom plates of the two support plates form side plates of the box girder;
the hoisting components are detachably fixed on the two support plates;
the steel truss is detachably fixed in the accommodating cavity, the steel truss is arranged in the length direction of the support plate in a through manner, and a plurality of prestressed steel bundles are fixed inside the steel truss.
The spliced steel truss box girder is further improved in that the hoisting assembly comprises an inverted U-shaped supporting plate, a side plate of the supporting plate is detachably fixed with a bottom plate of the supporting plate, and a cross beam for hoisting is fixed on the bottom surface of the supporting plate.
The spliced steel truss box girder is further improved in that a limiting groove is formed in the outer wall of the side plate of the box girder, a limiting block is arranged on the inner wall of the supporting plate, and the limiting block is clamped and fixed with the limiting groove.
The spliced steel truss box girder is further improved in that a plurality of prestressed steel bundles are radially fixed on a plurality of inner sections of the steel truss.
The spliced steel truss box girder is further improved in that a plurality of jacking components which are propped against the inner wall of the support plate are respectively fixed on the top surface and the side surface of the steel truss.
The splicing type steel truss box girder is further improved in that the fixing assembly comprises a clamping plate arranged on the edge of the first side plate of one support plate and a clamping groove arranged on the edge of the first side plate of the other support plate, and the clamping plate and the clamping groove are clamped and fixed with the two support plates.
The spliced steel truss box girder is further improved in that a sliding groove is formed in a bottom plate of the box girder, a sliding plate is arranged at the bottom of the steel truss, and the sliding plate slides into the sliding groove to install the steel truss.
In a second aspect, the invention also provides an installation method of the spliced steel truss box girder, which comprises the following steps:
providing two U-shaped support plates;
the openings of the two support plates are opposite to form an accommodating cavity and the accommodating cavity is fixed through a fixing component;
providing a hoisting assembly;
installing hoisting components on the two support plates;
providing a steel truss and a plurality of prestressed steel bundles;
fixing a plurality of prestressed steel bundles in the steel truss;
fixing a steel truss in the accommodating cavity along the length direction of the support plate;
the box girder is hoisted to the position to be installed through the hoisting assembly.
The spliced steel truss box girder is further improved in that a bottom plate of the box girder is provided with a sliding groove, and the bottom of the steel truss is provided with a sliding plate;
when the steel truss is fixed in the accommodating cavity along the length direction of the support plate, the sliding plate slides into the sliding groove to install the steel truss.
The spliced steel truss box girder is further improved in that a plurality of jacking components which are propped against the inner wall of the support plate are respectively fixed on the top surface and the side surface of the steel truss;
after the steel truss is fixed in the accommodating cavity along the length direction of the support plate, the jacking component is adjusted to prop against the inner wall of the box girder.
Compared with the prior art, the invention has positive and obvious effect. According to the invention, through the detachable box girder structure and the installation of the hoisting assembly on the box girder, the technical problems of inconvenience in hoisting and difficulty in later maintenance of the box girder in the prior art are solved. This box girder assembles this box girder through the mode of each part concatenation, is favorable to the installation and the transportation to this box girder, alleviates work burden and each item cost greatly, and ann tears open very conveniently, adjusts a plurality of jacking subassemblies and makes its and box girder inner wall contact, makes prestressing steel beam and steel truss reach initiative atress state to bear the load jointly with the box girder, improve the ability of this box girder bearing capacity.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural view of the spliced steel truss box girder of the present invention.
Fig. 2 is a schematic view of the internal structure of the spliced steel truss box girder of the present invention.
Fig. 3 is a schematic side structural view of the spliced steel truss box girder of the present invention.
Fig. 4 is a schematic structural view of a steel truss of the spliced steel truss box girder of the invention.
Fig. 5 is a schematic structural diagram of a support plate of the spliced steel truss box girder.
Fig. 6 is an enlarged view of circle a in fig. 1.
Fig. 7 is an enlarged view of circle B in fig. 1.
Fig. 8 is an enlarged view of circle C in fig. 5.
Fig. 9 is an enlarged view of circle D in fig. 5.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and 2, the present invention provides a spliced steel truss box girder, comprising: the opening of the two U-shaped support plates 1 is oppositely arranged to form an accommodating cavity, the first side plates of the two support plates 1 are detachably fixed through fixing components to form a bottom plate of the box girder, the second side plates of the two support plates 1 are butted to form a top plate of the box girder, and the bottom plates of the two support plates 1 form side plates of the box girder; the hoisting components are detachably fixed on the two support plates 1; the steel truss is detachably fixed in the accommodating cavity, the steel truss is arranged along the length direction of the support plate 1 in a through manner, and a plurality of prestressed steel bundles 14 are fixed inside the steel truss. In the embodiment, the two support plates 1 are butted to form the box girder with the trapezoidal section so as to meet the stress condition of the conventional bridge. The steel truss is detachably fixed in the box girder, so that the steel truss can be directly replaced and maintained, the convenience degree of later maintenance is improved, the box girder is also detachably mounted, the box girder can be detached and transported in the transportation and hoisting processes, and the convenience degree of transportation and hoisting is greatly improved.
Preferably, as shown in fig. 1 to 3, the hoisting assembly comprises an inverted U-shaped supporting plate 9, the side plates of the supporting plate 9 are detachably fixed with the bottom plate of the supporting plate 1, and a cross beam 10 for hoisting is fixed on the bottom surface of the supporting plate 9. A plurality of hoisting holes are formed in the cross beam 10, and a plurality of hoisting holes are also formed in the middle of the supporting plate 9, so that the box girder can be hoisted and pulled during installation conveniently. The side plate of the supporting plate 9 is fixed with the side plate of the box girder, so that the acting force of a box girder top plate during hoisting can be greatly reduced, and the damage to the box girder is avoided. The beam 10 can be directly fixed with other structures of the bridge in the later period, and is not required to be disassembled after being hoisted.
Specifically, as shown in fig. 1, fig. 2, fig. 5, fig. 6, and fig. 9, a limiting groove 13 is formed in an outer wall of a side plate of the box girder, a limiting block 8 is arranged on an inner wall of the supporting plate 9, and the limiting block 8 is fixed to the limiting groove 13 in a clamping manner. This stopper 8 and spacing groove 13 all lead to long setting and both shape adaptations along the axial, through mutually supporting between stopper 8 and the spacing groove 13, stopper 8 can freely slide in spacing groove 13, through stopper 8 sliding connection in spacing groove 13 to make layer board 9 can dismantle fixedly with the case roof beam. The limiting groove 13 and the limiting block 8 are both T-shaped. Further, the side plates of the supporting plate 9 can be fixed with the side plates of the box girder through a plurality of fastening bolts 16, so that the fixing firmness of the supporting plate 9 and the box girder is improved.
Preferably, as shown in fig. 1, 2 and 4, the prestressed steel strands 14 are radially fixed to the inner sections of the steel truss. The steel truss comprises two side frames 5 and a web fixed between the two side frames 5, the side frames 5 comprise two cross rods arranged in a full length mode and a plurality of vertical rods fixed between the two cross rods, the vertical rods on the two side frames 5 are opposite in position, and an inclined rod 17 is fixed between every two adjacent vertical rods. The web includes the last web 6 of fixing on two side frame 5 tops and fixes lower web 15 in side frame 5 lower part, goes up web 6 and extends side frame 5 and contact with the inside wall of case roof beam, and the setting up of down tube 17 and web has improved the holistic bearing capacity of steel truss. The section shape of the steel truss is matched with that of the box girder and is also trapezoidal. A plurality of prestressed steel beams 14 are fixed between two vertical rods opposite to the two side frames 5, the prestressed steel beams 14 are distributed in a cross mode, compressive stress is applied to the steel beams in advance during construction, the prestressed stress can completely or partially offset tensile stress caused by load during structural service, and box girder damage is avoided.
Preferably, as shown in fig. 1 to 4, a plurality of tightening components which are pressed against the inner wall of the support plate 1 are respectively fixed on the top surface and the side surface of the steel truss. The jacking assembly comprises a plurality of supporting assemblies 7 fixed on the top surface of an upper web 6 and a plurality of jacking structures 18 fixed on the outer surface of a side frame 5, each supporting assembly 7 comprises an adjusting structure 71, each adjusting structure 71 is fixed on the upper surface of the upper web 6, a bolt jacking column 72 is arranged in each adjusting structure 71, the top end of each bolt jacking column 72 is tightly jacked against the inner wall of the top plate of the box girder, each adjusting structure 71 is formed by sleeving a bearing and a threaded ring, and the bolt jacking columns 72 can rotate in the threaded rings and move up and down by rotating; and the threaded ring is sleeved in the bearing, and the bolt top column 72 can move up and down under the condition of no rotation due to the fact that the bolt top column 72 and the box girder top plate generate large friction force and are not easy to rotate, and adjustment work of personnel is facilitated. Specifically, the jacking structure 18 is preferably set as an adjustable hydraulic rod, so that the adjustable hydraulic rod is abutted against the inner side wall of the box girder to ensure the stability of the internal steel truss. When the steel truss is fixed in the box girder, the adjusting work of the jacking assembly is carried out, and the box girder constructed by the bridge has larger volume and larger gap between the steel bundles, so that a certain operation space can be provided for a constructor. Through setting up jacking structure 18 and supporting component 7, adjust a plurality of jacking structures 18 and make it and the contact of case roof beam inside wall, adjust a plurality of supporting component 7, make bolt fore-set 72 rise and the contact of case roof beam roof board to make prestressing steel beam 14 and down tube 17 reach initiative atress state, and bear the load effect with the case roof beam combined action, improve the ability of this case roof beam bearing capacity.
Preferably, as shown in fig. 1, fig. 2, fig. 5, fig. 7 and fig. 8, the fixing assembly includes a clamping plate 2 disposed at an edge of a first side plate of one of the plates 1 and a clamping groove 3 disposed at an edge of a first side plate of the other plate 1, and the clamping plate 2 and the clamping groove 3 clamp and fix the two plates 1. This draw-in groove 3 and cardboard 2 are the axial and lead to long setting, during the installation, directly slide cardboard 2 in draw-in groove 3 until the installation is accomplished, this mounting means convenient and fast, the operation degree of difficulty is little, is favorable to improving the efficiency of construction. Further, the cardboard 2 and the draw-in groove 3 are gone up and are seted up multiunit screw hole correspondingly, and after the installation was accomplished in the cardboard 2 slided into the draw-in groove 3, wear to establish screw 4 on every group screw hole to the relative position of fixed cardboard 2 and draw-in groove 3 avoids installing and accomplishes back cardboard 2 and continue to slide in draw-in groove 3.
Preferably, as shown in fig. 1, 4, 5 and 7, a sliding groove 12 is opened on the bottom plate of the box girder, a sliding plate 11 is provided at the bottom of the steel truss, and the sliding plate 11 slides into the sliding groove 12 to mount the steel truss. This sliding plate 11's quantity is two lower extremes of locating two side frames 5 respectively, sliding tray 12's quantity is two and relative with sliding plate 11's position, sliding plate 11 all leads to long the setting along the axial with sliding tray 12, sliding plate 11 sliding connection is in sliding tray 12, sliding plate 11 is the opening towards horizontally U-shaped, sliding tray 12 is L shape, sliding plate 11's bottom slidable mounting is in sliding tray 12, this mounting means ann tears the convenience open, the efficiency of construction of later stage maintenance has been improved greatly.
On the other hand, the invention also provides an installation method of the spliced steel truss box girder, which comprises the following steps:
providing two U-shaped support plates 1;
the openings of the two support plates 1 are opposite to form an accommodating cavity and are fixed through a fixing component;
providing a hoisting assembly;
installing hoisting components on the two support plates 1;
providing a steel truss and a plurality of prestressed steel strands 14;
fixing a plurality of prestressed steel bundles 14 in the steel truss;
fixing a steel truss in the accommodating cavity along the length direction of the support plate 1;
the box girder is hoisted to the position to be installed through the hoisting assembly.
Preferably, a sliding groove 12 is formed in a bottom plate of the box girder, and a sliding plate 11 is arranged at the bottom of the steel truss;
when the steel truss is fixed in the accommodating cavity along the length direction of the support plate 1, the sliding plate 11 is slid into the sliding groove 12 to install the steel truss.
Preferably, a plurality of jacking components which are propped against the inner wall of the support plate 1 are respectively fixed on the top surface and the side surface of the steel truss;
after the steel truss is fixed in the accommodating cavity along the length direction of the support plate 1, the jacking component is adjusted to prop against the inner wall of the box girder.
According to the invention, through the detachable box girder structure and the installation of the hoisting assembly on the box girder, the technical problems of inconvenience in hoisting and difficulty in later maintenance of the box girder in the prior art are solved. This box girder assembles this box girder through the mode of each part concatenation, is favorable to the installation and the transportation to this box girder, alleviates work burden and each item cost greatly, and ann tears open very conveniently, adjusts a plurality of jacking subassemblies and makes its and box girder inner wall contact, makes prestressing steel beam 14 and steel truss reach initiative atress state to with the box girder common load, improve the ability of this box girder bearing capacity.
The following specific installation steps are included:
when the case roof beam needs to be disassembled (such as transportation and hoisting), the clamping plate 2 can freely slide in the clamping groove 3 by loosening the screws 4 on the clamping plate 2 and the clamping groove 3 through tools, the fastening bolt 16 is also loosened together, the limiting strip can freely slide in the limiting groove 13, the supporting plate 1 on one side is pushed to ensure that the clamping plate 2 is separated from the clamping groove 3, the case roof beam is effectively divided into two parts, the supporting plate 1 is pushed to two sides, and the supporting plate 1 can be detached from the limiting groove 13 to ensure that the supporting plate 1 can be disassembled from the supporting plate 9.
When the box girder needs to be assembled, the supporting plate 1 is hoisted to be in contact with the side plate of the supporting plate 9, the limiting strip slides into the limiting groove 13 and pushes the supporting plate 1, then the other supporting plate 1 is hoisted to clamp the clamping plate 2 into the clamping groove 3, and the supporting plate 1 is pushed and drives the clamping plate 2 to slide in the clamping groove 3 until the box girder slides in place.
After the edge positions of the two support plates 1 are aligned, a box girder frame can be formed, the plurality of screws 4 and the plurality of fastening bolts 16 are screwed down, the clamping plates 2 and the support plates 1 are limited, then the steel truss and the steel truss support plates 1 are placed in the box girder, and the two sliding plates 11 are slidably connected in the sliding grooves 12 and slide until the edges slide to be aligned.
After the steel truss is completely placed into the two box girder supporting plates 1, the supporting assemblies 7 are adjusted to enable the bolt jacking columns 72 to ascend to be in contact with the inner walls of the box girder top plates, the upper web plate 6 is in contact with the inner walls of the two box girder side plates, and then the jacking structures 18 are adjusted to be in contact with the inner walls of the box girder side plates, so that the box girder can be spliced.
According to the invention, through the detachable box girder structure and the installation of the hoisting assembly on the box girder, the technical problems of inconvenience in hoisting and difficulty in later maintenance of the box girder in the prior art are solved. This box girder assembles this box girder through the mode of each part concatenation, is favorable to the installation and the transportation to this box girder, alleviates work burden and each item cost greatly, and ann tears open very conveniently, adjusts a plurality of jacking subassemblies and makes its and box girder inner wall contact, makes prestressing steel beam and steel truss reach initiative atress state to bear the load jointly with the box girder, improve the ability of this box girder bearing capacity.
The parts not involved in the present invention are the same as or can be implemented by the prior art. Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a concatenation formula steel truss box girder which characterized in that includes:
the opening of the two support plates is oppositely arranged to form an accommodating cavity, the first side plates of the two support plates are detachably fixed through a fixing assembly to form a bottom plate of the box girder, the second side plates of the two support plates are butted to form a top plate of the box girder, and the bottom plates of the two support plates form side plates of the box girder;
the hoisting assembly is detachably fixed on the two support plates;
the steel truss is detachably fixed in the accommodating cavity, the steel truss is arranged along the length direction of the support plate in a through manner, and a plurality of prestressed steel bundles are fixed inside the steel truss.
2. The spliced steel truss box girder of claim 1, wherein the hoisting assembly comprises an inverted U-shaped supporting plate, side plates of the supporting plate are detachably fixed with a bottom plate of the supporting plate, and a cross beam for hoisting is fixed on the bottom surface of the supporting plate.
3. The spliced steel truss box girder of claim 2, wherein a limiting groove is formed in the outer wall of the side plate of the box girder, a limiting block is arranged on the inner wall of the supporting plate, and the limiting block is clamped and fixed with the limiting groove.
4. The spliced steel truss box girder of claim 1, wherein the plurality of prestressed steel strands are radially fixed to a plurality of inner sections of the steel truss.
5. The spliced steel truss box girder of claim 1, wherein a plurality of jacking components which are propped against the inner wall of the support plate are respectively fixed on the top surface and the side surface of the steel truss.
6. The spliced steel truss box girder of claim 1, wherein the fixing assembly comprises a clamping plate arranged at the edge of the first side plate of one of the support plates and a clamping groove arranged at the edge of the first side plate of the other support plate, and the clamping plate is clamped with the clamping groove to fix the two support plates.
7. The spliced steel truss box girder of claim 1, wherein a sliding groove is formed on a bottom plate of the box girder, a sliding plate is arranged at the bottom of the steel truss, and the sliding plate slides into the sliding groove to mount the steel truss.
8. An installation method of the spliced steel truss box girder according to any one of claims 1 to 7, which is characterized by comprising the following steps:
providing two U-shaped support plates;
the openings of the two support plates are opposite to form an accommodating cavity and the accommodating cavity is fixed through a fixing component;
providing a hoisting assembly;
installing hoisting components on the two support plates;
providing a steel truss and a plurality of prestressed steel bundles;
fixing a plurality of prestressed steel bundles in the steel truss;
fixing a steel truss in the accommodating cavity along the length direction of the support plate;
and hoisting the box girder to a position to be installed through the hoisting assembly.
9. The spliced steel truss box girder of claim 8, wherein a sliding groove is formed in a bottom plate of the box girder, and a sliding plate is arranged at the bottom of the steel truss;
and when the steel truss is fixed in the accommodating cavity along the length direction of the support plate, the sliding plate slides into the sliding groove to install the steel truss.
10. The spliced steel truss box girder of claim 8, wherein a plurality of jacking components which are propped against the inner wall of the support plate are respectively fixed on the top surface and the side surface of the steel truss;
after the steel truss is fixed in the accommodating cavity along the length direction of the support plate, the jacking component is adjusted to abut against the inner wall of the box girder.
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004285738A (en) * | 2003-03-24 | 2004-10-14 | Oriental Construction Co Ltd | Box girder bridge structure and method of constructing the same |
| JP2005061064A (en) * | 2003-08-12 | 2005-03-10 | Oriental Construction Co Ltd | Curved road surface corresponding type box girder, and form device and manufacturing method for the same |
| CN101230562A (en) * | 2007-12-26 | 2008-07-30 | 中铁大桥局集团武汉桥梁科学研究院有限公司 | External prestress strengthening method for prestressed concrete box-beam bridge |
| KR101077820B1 (en) * | 2011-05-11 | 2011-11-03 | 박명옥 | Temporary bride construction method using module member |
| DE102013007635A1 (en) * | 2013-05-21 | 2014-11-27 | Peter Wagner | Cable-stayed bridge with hybrid stiffening beam |
| CN104233963A (en) * | 2014-09-10 | 2014-12-24 | 北京工业大学 | Prestress-adjustable steel truss for reinforcing PSC (prestressed concrete) continuous box girder bridge and construction method |
| KR101520033B1 (en) * | 2014-07-17 | 2015-05-14 | 우경기술주식회사 | PSC composite truss girder |
| CN107100063A (en) * | 2017-06-27 | 2017-08-29 | 扬州工业职业技术学院 | A kind of precast prestressed truss-like reinforcing bar concrete case |
| CN107161850A (en) * | 2017-06-30 | 2017-09-15 | 祁术洪 | A kind of precast concrete box-beam lift up rapidly suspender |
| CN208105007U (en) * | 2018-04-19 | 2018-11-16 | 中铁七局集团第四工程有限公司 | The box beam of variable cross-section multi-span continuous bridge |
| CN208279992U (en) * | 2018-04-28 | 2018-12-25 | 上海市城市建设设计研究总院（集团）有限公司 | The big box-beam structure of precast concrete of direction across bridge stem grafting method connection |
| CN109487707A (en) * | 2018-12-28 | 2019-03-19 | 东南大学 | A kind of precast assembly expanded letter box beam and its assembling method |
| CN110921498A (en) * | 2019-11-11 | 2020-03-27 | 王宇晨 | Quick lifting appliance for concrete precast box girder |
| CN214243529U (en) * | 2020-12-29 | 2021-09-21 | 中桥科建(德州)路桥工程有限公司 | Beam lifting machine |
| CN214613648U (en) * | 2021-04-08 | 2021-11-05 | 濮阳市规划建筑设计研究院 | Assembled case roof beam overlap joint node of atress equilibrium |
-
2021
- 2021-12-01 CN CN202111461151.3A patent/CN114319066B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004285738A (en) * | 2003-03-24 | 2004-10-14 | Oriental Construction Co Ltd | Box girder bridge structure and method of constructing the same |
| JP2005061064A (en) * | 2003-08-12 | 2005-03-10 | Oriental Construction Co Ltd | Curved road surface corresponding type box girder, and form device and manufacturing method for the same |
| CN101230562A (en) * | 2007-12-26 | 2008-07-30 | 中铁大桥局集团武汉桥梁科学研究院有限公司 | External prestress strengthening method for prestressed concrete box-beam bridge |
| KR101077820B1 (en) * | 2011-05-11 | 2011-11-03 | 박명옥 | Temporary bride construction method using module member |
| DE102013007635A1 (en) * | 2013-05-21 | 2014-11-27 | Peter Wagner | Cable-stayed bridge with hybrid stiffening beam |
| KR101520033B1 (en) * | 2014-07-17 | 2015-05-14 | 우경기술주식회사 | PSC composite truss girder |
| CN104233963A (en) * | 2014-09-10 | 2014-12-24 | 北京工业大学 | Prestress-adjustable steel truss for reinforcing PSC (prestressed concrete) continuous box girder bridge and construction method |
| CN107100063A (en) * | 2017-06-27 | 2017-08-29 | 扬州工业职业技术学院 | A kind of precast prestressed truss-like reinforcing bar concrete case |
| CN107161850A (en) * | 2017-06-30 | 2017-09-15 | 祁术洪 | A kind of precast concrete box-beam lift up rapidly suspender |
| CN208105007U (en) * | 2018-04-19 | 2018-11-16 | 中铁七局集团第四工程有限公司 | The box beam of variable cross-section multi-span continuous bridge |
| CN208279992U (en) * | 2018-04-28 | 2018-12-25 | 上海市城市建设设计研究总院（集团）有限公司 | The big box-beam structure of precast concrete of direction across bridge stem grafting method connection |
| CN109487707A (en) * | 2018-12-28 | 2019-03-19 | 东南大学 | A kind of precast assembly expanded letter box beam and its assembling method |
| CN110921498A (en) * | 2019-11-11 | 2020-03-27 | 王宇晨 | Quick lifting appliance for concrete precast box girder |
| CN214243529U (en) * | 2020-12-29 | 2021-09-21 | 中桥科建(德州)路桥工程有限公司 | Beam lifting machine |
| CN214613648U (en) * | 2021-04-08 | 2021-11-05 | 濮阳市规划建筑设计研究院 | Assembled case roof beam overlap joint node of atress equilibrium |
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