CN112323653B - Construction method of active bridge channel widening structure and application thereof - Google Patents
Construction method of active bridge channel widening structure and application thereof Download PDFInfo
- Publication number
- CN112323653B CN112323653B CN202011182127.1A CN202011182127A CN112323653B CN 112323653 B CN112323653 B CN 112323653B CN 202011182127 A CN202011182127 A CN 202011182127A CN 112323653 B CN112323653 B CN 112323653B
- Authority
- CN
- China
- Prior art keywords
- original
- transverse
- lane
- steel box
- original cover
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
- 238000010276 construction Methods 0.000 title claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 54
- 239000010959 steel Substances 0.000 claims abstract description 54
- 238000002955 isolation Methods 0.000 claims abstract description 6
- 239000004567 concrete Substances 0.000 claims description 4
- 239000011150 reinforced concrete Substances 0.000 claims description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- 238000005553 drilling Methods 0.000 claims description 2
- 210000003205 muscle Anatomy 0.000 description 6
- 230000003014 reinforcing effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000009417 prefabrication Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling 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
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- 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
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Abstract
The invention provides an active bridge channel widening structure and a construction method thereof, the active bridge comprises an original pile foundation arranged on the ground, an original cover beam arranged at the top of the original pile foundation and an original lane beam arranged above the original cover beam, a saddle is arranged at the four corners of the bottom surface of the original cover beam, steel pipe piles are arranged below the saddle, a transverse through beam is arranged above the original cover beam, the original cover beam and the transverse through beam are fixed together, two ends of a support rod are respectively arranged on connecting lug plates at one corresponding side of the original cover beam and the transverse through beam, the original lane beam, a steel box beam lane and a steel box beam sidewalk are respectively arranged on the transverse through beam, the steel box beams are arranged at two sides of the original lane beam, the steel box beam sidewalk is arranged at two sides of the steel box beam lane, two ends and the middle of a pavement structure layer are provided with isolation guardrails and are arranged above the original lane beam, the steel box beam and the steel box beam, the whole body has the effects of good bearing capacity, strong integrity and uniform stress.
Description
Technical Field
The invention relates to the field of bridge engineering, in particular to a construction method of an active bridge channel widening structure and application thereof.
Background
With the rapid development of socioeconomic performance in China, the automobile inventory in China is higher and higher. However, due to the reasons that the traffic flow and the vehicle load are low in the early stage, the design width of the road bridge in the early stage is usually not large, and even some road bridges are not shunted by people and vehicles, so that the problem of traffic jam in many cities at present is caused.
In order to meet the increasing traffic demand, improve the operation capacity of road bridges, save the manufacturing cost, protect the environment and fully play the role of the active road bridges, the preferred mode is to widen the active road bridges. The traditional construction technical means for widening and reinforcing the bridge are mutually separated, and the widening and reinforcing processes are not obviously combined, so that the problem that the joint surfaces of a new bridge and an old bridge are cracked or deformed inconsistently easily occurs after the bridge is finished, the structural rigidity of the bridge is reduced, and the later maintenance cost is increased.
Therefore, there is a need to find an active bridge channel widening structure with good bearing capacity, strong integrity and uniform stress and a construction method thereof.
Disclosure of Invention
The invention aims to overcome the problems and provides a construction method of an active bridge channel widening structure which is good in bearing capacity, strong in integrity and uniform in stress and an application thereof.
In order to achieve the above purpose, the technical scheme provides a construction method of an active bridge channel widening structure, which comprises the following steps:
1) detecting and cleaning an existing bridge, removing auxiliary structures such as guardrails and pavements, leaving a main body structure, respectively drilling and installing transverse connecting ribs, vertical connecting ribs and longitudinal connecting ribs on four corners of the original bent cap, then carrying out steel bar lapping and reinforcement arrangement of the supporting platform, and finally pouring concrete into a whole.
2) Connecting lug plates are installed on two sides of the original bent cap, and a counter-pulling hole which is communicated up and down is drilled on the original bent cap.
3) And constructing and driving the lower part of each supporting platform respectively to form the steel pipe pile, driving the steel pipe pile to the depth of the original pile foundation, and supporting the top end below the supporting platform to enhance the bearing capacity of the original pile foundation.
4) A transverse reinforced concrete through beam which accords with the engineering design size is manufactured in advance in a prefabrication factory, and a counter-pulling hole corresponding to the original cover beam is reserved on the transverse through beam (18).
5) The original lane beam is lifted by using large-scale hoisting machinery, after the prefabricated transverse through beam is lifted to the required height, the transverse through beam is laterally pushed and pulled onto the original cover beam, so that the transverse through beam is aligned with the opposite pulling holes of the original cover beam, and then the transverse through beam and the original cover beam are connected and fixed by utilizing the opposite pulling anchor rods and the anchor heads.
6) Connecting lug plates are arranged on two sides of the bottom surface of the transverse through beam, and then the supporting rods are symmetrically arranged by using high-strength bolts by utilizing the connecting lug plates on the transverse through beam and the original bent cap.
7) And arranging mounting supports at corresponding positions above the transverse through beams respectively, then placing the original lane beam on the mounting supports of the transverse through beams in a hanging manner, and adjusting the horizontal height of the original lane beam to the design height.
8) And symmetrically hoisting the steel box girder lane and the steel box girder sidewalk to the mounting support in sequence at the extension sections on two sides of the transverse through beam, and adjusting the horizontal height to be consistent with the installed original lane girder.
9) And finally, paving a road surface structure layer on the installed original lane beam, the installed steel box beam lane and the installed steel box beam sidewalk, and arranging and installing an isolation guardrail to complete construction of the channel widening structure of the existing bridge.
According to another aspect of the invention, a bridge constructed according to the construction method of the active bridge channel widening structure is provided.
Compared with the prior art, the invention has the following characteristics and beneficial effects:
the invention adopts the scheme that the supporting platform is cast integrally with the original capping beam, and the steel pipe piles are arranged below the supporting platform, so that the integral rigidity and the bearing capacity of the existing bridge are enhanced, and the technical advantages are obvious.
The transverse through beam adopted by the invention can ensure that the stress of the new and old structures of the bridge is uniform, the problem that the joint surface of the new and old bridge is cracked or deformed inconsistently is avoided, and the widened structure of the existing bridge channel is simple in structure and convenient to install, and the construction period can be greatly saved by prefabricating in advance.
The split type bridge is provided with the split anchor rods, the connecting lug plates and the supporting rods, so that the newly added transverse through beam is firmly combined with the original capping beam, organic combination of new and old structures of the bridge is facilitated, the integrity is strong, the construction is convenient, and the technical advantages are obvious.
Drawings
Fig. 1 is a schematic illustration of an active bridge aisle widening architecture according to an embodiment of the invention.
Fig. 2 is a schematic structural diagram of a main body of an active bridge according to an embodiment of the present invention.
FIG. 3 is a schematic diagram of a pallet layout according to an embodiment of the present invention.
Fig. 4 is a construction layout view of a coupling lug and a counter-pull hole according to an embodiment of the present invention.
Fig. 5 is a top view of a-a in fig. 4.
Fig. 6 is a schematic arrangement diagram of a steel pipe pile according to an embodiment of the present invention.
Fig. 7 is a cross-sectional view of a transverse through beam according to an embodiment of the invention.
Fig. 8 is a schematic view of the mounting of a transverse through beam according to an embodiment of the invention.
Figure 9 is a schematic view of the mounting of a support rod according to an embodiment of the present invention.
Fig. 10 is a schematic view illustrating an arrangement of an existing lane beam according to an embodiment of the present invention.
Fig. 11 is a schematic layout of a newly added steel box girder lane and sidewalk according to an embodiment of the present invention.
Wherein: 1-pavement structure layer; 2-isolation guard bar; 3-original lane beam; 4-steel box girder driveway; 5-steel box girder sidewalk; 6-the ground; 7-original capping beam; 8-a pallet; 9-steel pipe pile; 10-transverse connecting rib; 11-vertical connecting ribs; 12-opposite pulling anchor rod; 13-anchor head; 14-mounting support; 15-original pile foundation; 16-support bar; 17-connecting ear plate; 18-transverse through beam; 19-longitudinal connecting ribs; 20-opposite pulling hole.
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 that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
The technical solution of the present invention is further explained with reference to the accompanying drawings, such as fig. 1-11.
The scheme provides a structure is widened to bridge channel of active service for widen the passageway of bridge of active service, including the bridge of active service, road surface structural layer (1), isolation barrier (2), steel box girder lane (4), steel box girder pavement (5), saddle (8), steel-pipe pile (9), the splice bar, to drawing stock (12), anchor head (13), erection support (14), bracing piece (16), engaging lug board (17), horizontal through-beam (18) and to drawing hole (20).
The existing bridge comprises an original pile foundation (15) arranged on the ground (6), an original cover beam (7) arranged at the top of the original pile foundation (15) and an original lane beam (3) arranged above the original cover beam (7), wherein a supporting platform (8) is arranged at the four corners of the bottom surface of the original cover beam (7) through connecting ribs, and the supporting platform (8) and the original cover beam (7) are integrally poured and formed. In this scheme, bore respectively on every angle head of four angle heads of original bent cap (7) of active service bridge and establish installation transverse connection muscle (10), vertical joint muscle (11) and longitudinal joint muscle (19), then transverse connection muscle (10), the reinforcing bar overlap joint and the arrangement of reinforcement of vertical joint muscle (11) and longitudinal joint muscle (19) and saddle (8), pour the concrete in the reinforcing bar of saddle (8), pour into whole with saddle (8) and original bent cap (7) to the holistic rigidity and the bearing capacity of reinforcing active service bridge in term.
The steel pipe pile (9) is arranged below the supporting platform (8). In the scheme, the steel pipe piles (9) are respectively arranged at four corners of the original bent cap (7). The transverse through beam (18) is arranged above the original cover beam (7), and the original cover beam (7) and the transverse through beam (18) are fixedly connected.
Specifically, the corresponding positions of the original cover beam (7) and the transverse through beam (18) are provided with through opposite-pulling holes (20), and the original cover beam (7) and the transverse through beam (18) are fixed together by arranging opposite-pulling anchor rods (12) and anchor heads (13).
In addition, connect otic placode (17) to set up respectively in the downside at original bent cap (7) both ends and the both sides of horizontal logical roof beam (18) bottom surface, bracing piece (16) both ends are installed respectively on original bent cap (7) and horizontal logical roof beam (18) correspond connection otic placode (17) of one side to original bent cap (7) and horizontal logical roof beam (18) are connected to the bracing.
Be equipped with erection support (14) on horizontal logical roof beam (18), original lane roof beam (3), steel box girder lane (4) and steel box girder pavement (5) set up on horizontal logical roof beam (18) through erection support (14) respectively, just steel box girder lane (4) set up in original lane roof beam (3) both sides, steel box girder pavement (5) set up the both sides in steel box girder lane (4).
The road surface structural layer (1) is arranged above an original lane beam (3), a steel box beam lane (4) and a steel box beam sidewalk (5), and isolation guardrails (2) are arranged at the two ends and in the middle of the road surface structural layer (1).
The connecting ribs comprise transverse connecting ribs (10), vertical connecting ribs (11) and longitudinal connecting ribs (19).
The supporting platform (8) is of a reinforced concrete structure and is integrally cast with four corners of the bottom surface of the original cover beam (7) through connecting ribs.
The driving depth of the steel pipe pile (9) is the same as that of the original pile foundation (15).
The scheme provides a construction method of an active bridge channel widening structure, wherein the channel is widened on an active bridge, and the construction method comprises the following steps:
1) as shown in fig. 2, fig. 3 and fig. 5, the existing bridge is detected and cleaned, auxiliary structures such as guardrails and pavements on the existing bridge are removed, a main body structure is left, transverse connecting ribs (10), vertical connecting ribs (11) and longitudinal connecting ribs (19) are respectively drilled and installed on each corner of four corners of an original cover beam (7) of the existing bridge, then the transverse connecting ribs (10), the vertical connecting ribs (11) and the longitudinal connecting ribs (19) are lapped and distributed with reinforcing steel bars of a supporting platform (8), finally concrete is poured in the reinforcing steel bars of the supporting platform (8), the supporting platform (8) and the original cover beam (7) are poured into a whole, and the integral rigidity and the bearing capacity of the existing bridge are enhanced.
Wherein, every two of the transverse connecting ribs (10), the vertical connecting ribs (11) and the longitudinal connecting ribs (19) are arranged in an orthogonal way. Namely, the transverse connecting ribs (10) are arranged along the transverse direction of the original cover beam (7), the vertical connecting ribs (11) are arranged along the vertical direction of the original cover beam (7), the longitudinal connecting ribs (19) are arranged along the longitudinal direction of the original cover beam (7), and the transverse connecting ribs (10), the vertical connecting ribs (11) and the longitudinal connecting ribs (19) are all arranged outside the original cover beam (7).
2) As shown in fig. 4 and 5, connecting lug plates (17) are installed on two sides of the original bent cap (7), and a counter-pulling hole (20) which is through up and down is drilled on the original bent cap (7).
The connecting ear plates (17) are arranged on two side edges of the original bent cap (7), preferably, the connecting ear plates (17) on two sides are positioned on the same horizontal axis, and the opposite-pulling holes (20) penetrate through the upper side edge and the lower side edge of the original bent cap (7). In the embodiment of the scheme, the opposite-pulling holes (20) are respectively arranged on two sides of the original bent cap (7) and are symmetrically arranged relative to the central axis of the original bent cap (7). Preferably, the counter-pulling holes (20) are respectively arranged at the four corners of the original cover beam (7).
3) As shown in fig. 6, the lower part of each saddle (8) is respectively provided with a steel pipe pile (9), the steel pipe pile (9) is driven to the depth of the original pile foundation (15) of the original capping beam (7), and the top end of the steel pipe pile (9) is supported below the saddle (8) so as to enhance the bearing capacity of the original pile foundation (15).
In the scheme, the four corners of the original bent cap (7) are respectively provided with a supporting platform (8), and correspondingly, a steel pipe pile (9) is arranged below each supporting platform (8) to support the supporting platform (8).
4) As shown in figure 7, a reinforced concrete transverse through beam (18) which meets the engineering design size is manufactured in advance in a prefabrication factory, and a counter-pulling hole (20) corresponding to the original cover beam (7) is reserved in the transverse through beam (18).
5) As shown in fig. 8, the original lane beam (3) is lifted by using a large-scale hoisting machine, and after the prefabricated transverse through beam (18) is lifted to a required height, the transverse through beam is installed above the original cover beam (7) and is fixedly connected with the original cover beam;
specifically, the transverse through beam (18) is laterally pushed and pulled to the original cover beam (7) to align with the opposite-pulling holes (20) of the original cover beam (7), and then the transverse through beam (18) is connected and fixed with the original cover beam (7) by the opposite-pulling anchor rods (12) and the anchor heads (13).
6) As shown in fig. 9, the connecting ear plates (17) are respectively installed on two sides of the bottom surface of the transverse through beam (18), and then the supporting rods (16) are symmetrically installed by using high-strength bolts by utilizing the connecting ear plates (17) on the transverse through beam (18) and the original cover beam (7).
At the moment, a triangular structure is formed among the transverse through beam (18), the original cover beam (7) and the support rod (16) so as to better and stably support the transverse through beam (18).
7) As shown in fig. 10, mounting supports (14) are respectively arranged at corresponding positions above the transverse through beam (18), then the original lane beam (3) is hung and placed on the mounting supports (14) of the transverse through beam (18), and the horizontal height of the original lane beam (3) is adjusted to the design height.
8) As shown in fig. 11, the steel box girder lane (4) and the steel box girder sidewalk (5) are sequentially and symmetrically hoisted to the mounting support (14) at the extension sections at the two sides of the transverse through beam (18), and the horizontal height is adjusted to be consistent with that of the installed original lane girder (3).
Namely, the original lane beam (3) is arranged in the middle of the transverse through beam (18), the steel box beam lane (4) is respectively arranged on two sides of the original lane beam (3), and the steel box beam sidewalk (5) is arranged on the outer side of the steel box beam lane (4).
9) As shown in fig. 1, finally, paving a pavement structure layer (1) on the installed original lane beam (3), the steel box beam lane (4) and the steel box beam sidewalk (5), and installing and isolating guardrails (2) to complete the construction of the channel widening structure of the existing bridge.
According to another aspect of the invention, a bridge constructed according to the construction method of the active bridge channel widening structure is provided.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as those of the present application, fall within the protection scope of the present invention.
Claims (4)
1. A construction method of an active bridge channel widening structure is used for widening channels on an active bridge, and is characterized by comprising the following steps:
1) detecting and cleaning an existing bridge, removing an auxiliary structure on the existing bridge, leaving a main body structure, drilling and installing a transverse connecting rib (10), a vertical connecting rib (11) and a longitudinal connecting rib (19) at the corner of an original cover beam (7) of the existing bridge, overlapping and reinforcing steel bars of a supporting platform (8) on the transverse connecting rib (10), the vertical connecting rib (11) and the longitudinal connecting rib (19), pouring concrete in the steel bars of the supporting platform (8), and pouring the supporting platform (8) and the original cover beam (7) into a whole;
2) connecting lug plates (17) are installed on two sides of the original bent cap (7), and a counter-pulling hole (20) which is communicated up and down is drilled on the original bent cap (7);
3) constructing and driving a steel pipe pile (9) at the lower part of the saddle (8), wherein the steel pipe pile (9) is driven to the depth of an original pile foundation (15) of an original cover beam (7);
4) prefabricating a reinforced concrete transverse through beam (18) according with the engineering design size, wherein a counter-pulling hole (20) corresponding to the original cover beam (7) is reserved on the transverse through beam (18);
5) lifting an original lane beam (3) of an active bridge, lifting a prefabricated transverse through beam (18) to a required height, and then installing the transverse through beam above an original cover beam (7) and connecting and fixing the transverse through beam with the original cover beam; laterally pushing and pulling the transverse through beam (18) to the original bent cap (7) to align the transverse through beam with the opposite-pulling holes (20) of the original bent cap (7), and then connecting and fixing the transverse through beam (18) and the original bent cap (7) by using an opposite-pulling anchor rod (12) and an anchor head (13);
6) connecting ear plates (17) are respectively arranged on two sides of the bottom surface of the transverse through beam (18), and then a support rod (16) is arranged by utilizing the transverse through beam (18) and the connecting ear plates (17) on the original bent cap (7);
7) mounting supports (14) are respectively arranged at corresponding positions above the transverse through beams (18), the original lane beam (3) is hung and placed on the mounting supports (14) of the transverse through beams (18), and the horizontal height of the original lane beam (3) is adjusted to the design height; a triangular structure is formed among the transverse through beam (18), the original cover beam (7) and the support rod (16);
8) symmetrically hoisting a steel box girder lane (4) and a steel box girder sidewalk (5) to a mounting support (14) in sequence at the extension sections on two sides of the transverse through beam (18), and adjusting the horizontal height to be consistent with the installed original lane girder (3);
9) paving a pavement structure layer (1) on the installed original lane beam (3), the steel box beam lane (4) and the steel box beam sidewalk (5), and arranging and installing an isolation guardrail (2).
2. The construction method of the active bridge channel widening structure according to the claim 1, characterized in that the transverse connecting ribs (10) are arranged along the transverse direction of the original capping beam (7), the vertical connecting ribs (11) are arranged along the vertical direction of the original capping beam (7), and the longitudinal connecting ribs (19) are arranged along the longitudinal direction of the original capping beam (7).
3. The construction method of the active bridge channel widening structure according to the claim 1, characterized in that the connecting ear plates (17) at two sides are positioned on the same horizontal axis, and the counter-pulling holes (20) penetrate through the upper side and the lower side of the original capping beam (7).
4. The construction method of the active bridge channel widening structure according to claim 1, characterized in that an original lane beam (3) is arranged in the middle of a transverse through beam (18), steel box beam lanes (4) are respectively arranged on two sides of the original lane beam (3), and a steel box beam sidewalk (5) is arranged on the outer side of the steel box beam lanes (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011182127.1A CN112323653B (en) | 2020-10-29 | 2020-10-29 | Construction method of active bridge channel widening structure and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011182127.1A CN112323653B (en) | 2020-10-29 | 2020-10-29 | Construction method of active bridge channel widening structure and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112323653A CN112323653A (en) | 2021-02-05 |
| CN112323653B true CN112323653B (en) | 2022-07-12 |
Family
ID=74297836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011182127.1A Active CN112323653B (en) | 2020-10-29 | 2020-10-29 | Construction method of active bridge channel widening structure and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112323653B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113430959A (en) * | 2021-08-04 | 2021-09-24 | 刘澜涛 | Construction method for prolonging radial width of expressway bridge |
| CN114922087B (en) * | 2022-06-23 | 2023-08-22 | 湖南省交通规划勘察设计院有限公司 | Construction method of rear-mounted combined column type platform spliced wide bridge |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4284517B2 (en) * | 2003-10-24 | 2009-06-24 | ピーシー橋梁株式会社 | Construction method of widened sidewalk structure of existing bridge |
| CN103015329A (en) * | 2012-12-31 | 2013-04-03 | 中铁第四勘察设计院集团有限公司 | I-section steel girder reinforcement small box girder structure |
| CN204608619U (en) * | 2015-03-27 | 2015-09-02 | 长沙学院 | A kind of new construction widening reinforcing on exist curves |
| CN105672145B (en) * | 2016-03-18 | 2017-10-13 | 大连理工大学 | A kind of pier top sets up the structure that steel lid beam widens bridge |
| CN210262769U (en) * | 2019-07-17 | 2020-04-07 | 山西省交通规划勘察设计院有限公司 | Hollow slab bridge reinforcing and widening structure |
-
2020
- 2020-10-29 CN CN202011182127.1A patent/CN112323653B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112323653A (en) | 2021-02-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101090400B1 (en) | Construction method of road for extending breadth of road on slope face | |
| CN112323653B (en) | Construction method of active bridge channel widening structure and application thereof | |
| CN109853375B (en) | Bridge expansion joint reserved notch of assembled structure and construction method thereof | |
| CN103572873A (en) | Assembled monolithic floor slab and construction method thereof | |
| CN103938546A (en) | Simple-supported continuous construction method and structure thereof | |
| CN112342935B (en) | Construction method for connecting and widening existing bridge with wide spacing in traffic state | |
| CN110644349A (en) | Superstructure for wide box girder and short tower cable-stayed bridge and construction method | |
| CN110396919B (en) | Assembled steel structure-concrete combined bridge and construction method thereof | |
| CN111455802A (en) | Bridge upper part assembly type combined structure and construction process thereof | |
| CN113073540A (en) | Pile-beam integrated fully-prefabricated assembled bridge substructure, bridge and construction method thereof | |
| JP3851539B2 (en) | Block-type traffic roads, split-bridge-type traffic roads, and bridge traffic roads | |
| CN112281663A (en) | Construction method for widening connection of upper structures of new and old bridges | |
| CN208235303U (en) | A kind of precast prestressed modularization viaduct | |
| JP4477467B2 (en) | Bridge structure and its replacement method | |
| CN113668399B (en) | Construction method of half-through tied steel box arch bridge | |
| CN213804950U (en) | Active service bridge passage widening structure | |
| CN213804892U (en) | Precast concrete bridge structures based on hollow core slab | |
| KR200266040Y1 (en) | Precast Concrete Base Structure for Soundproof Wall | |
| CN113585284A (en) | Steel-concrete composite beam and temporary pavement covering structure for subway station | |
| KR20200009989A (en) | Upper body, A composite girder in which the upper body and the lower body, A temporary structure having composite girder and construction method of the structure | |
| CN215252255U (en) | Pile-beam integrated fully-prefabricated assembled bridge substructure and bridge | |
| CN219793662U (en) | High-speed construction protection canopy strides of steel-concrete composite beam | |
| CN113668388B (en) | Pier-beam collaborative integral rapid installation and removal method based on vehicle-mounted equipment | |
| CN111535104B (en) | Road structure around foundation pit support and construction method thereof | |
| CN214942379U (en) | Post-cast strip joint template construction structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 253000 159 Jinghua Avenue, Dezhou Economic and Technological Development Zone, Shandong Province Patentee after: Deda Transportation Construction and Development Group Co.,Ltd. Address before: 253000 159 Jinghua Avenue, Dezhou Economic and Technological Development Zone, Shandong Province Patentee before: DEZHOU ROAD ENGINEERING Corp. |