CN112627013A - Deck type arch bridge suspension bridge way system reinforced by truss type steel structure stiffening longitudinal beams and construction method thereof - Google Patents

Deck type arch bridge suspension bridge way system reinforced by truss type steel structure stiffening longitudinal beams and construction method thereof Download PDF

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Publication number
CN112627013A
CN112627013A CN202110079153.XA CN202110079153A CN112627013A CN 112627013 A CN112627013 A CN 112627013A CN 202110079153 A CN202110079153 A CN 202110079153A CN 112627013 A CN112627013 A CN 112627013A
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China
Prior art keywords
stiffening
steel
concrete beam
bridge
vertical
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CN202110079153.XA
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吴庆雄
陈康明
袁辉辉
杨益伦
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Fuzhou University
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Fuzhou University
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Priority to CN202110079153.XA priority Critical patent/CN112627013A/en
Publication of CN112627013A publication Critical patent/CN112627013A/en
Priority to LU502338A priority patent/LU502338B1/en
Priority to PCT/CN2021/105468 priority patent/WO2022156157A1/en
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/04Bearings; Hinges
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/12Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
    • E01D19/125Grating or flooring for bridges
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00Methods or apparatus specially adapted for erecting or assembling bridges

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

Abstract

The invention belongs to the technical field of bridge engineering, and particularly relates to a through arch bridge suspension bridge way system reinforced by truss type steel structure stiffening longerons and a construction method thereof. The invention achieves the effect of effective use of the suspension bridge way system of the through arch support by arranging the bracket, the support, the suspension rod, the bridge deck, the truss type steel structure stiffening longitudinal beam and the concrete cross beam on the arch support. The integral underprop type supporting structure comprises the truss type steel structure stiffening longitudinal beam and the concrete cross beam, and has the advantages of high integral rigidity and good stability, light self weight, high bending rigidity and easy construction of the truss type steel structure stiffening longitudinal beam, small deformation which is unfavorable for structure stress and generated by the integral underprop type supporting structure due to temperature change, good integral reinforcing effect on the whole suspension bridge system, great application value and good economic benefit.

Description

Deck type arch bridge suspension bridge way system reinforced by truss type steel structure stiffening longitudinal beams and construction method thereof
Technical Field
The invention belongs to the technical field of bridge engineering, and particularly relates to a through arch bridge suspension bridge way system reinforced by truss type steel structure stiffening longerons and a construction method thereof.
Background
The design of the early suspension bridge way system is mainly not the stress of stiffening longitudinal beams but mainly the stress of cross beams, and suspenders are also anchored at two ends of the cross beams, then bridge decks are laid on the cross beams, and no stiffening longitudinal beams are arranged among most of the cross beams. After many underpass arch bridges are operated and used for years at present, a suspension bridge way system of the underpass arch bridge has many diseases, such as overlarge bridge deck vibration, serious bridge deck damage, support drop and the like, and serious accidents of bridge deck collapse and even whole bridge collapse caused by accidental breakage of suspenders have occurred successively in recent years, so irrecoverable economic loss is caused.
With the occurrence of major accidents and the occurrence of various types of diseases caused by the damage of a suspended bridge road system of a multi-rise through arch bridge, researchers and designers pay more attention to the arrangement of stiffening longitudinal beams, however, in the face of the reinforcement of the suspended bridge road system of the through arch bridge which has been operated for years, the additionally arranged concrete stiffening longitudinal beams are partially selected, the rigidity is high, the vibration resistance is good, the self-weight is high, the load borne by a suspension rod is obviously increased, the construction is difficult, the additionally arranged steel structural steel beams are partially selected as the stiffening longitudinal beams, but the integral steel structural stiffening longitudinal beams and the bridge road system of a concrete structure are different in material and generate different deformation under the influence of temperature, and new problems of transverse beam displacement, concrete cracking, support falling and the like occur.
Therefore, it is necessary to design a through arch bridge suspension bridge system reinforced by the trussed steel structural stiffening longerons and a construction method thereof, wherein the through arch bridge suspension bridge system has the advantages of light self weight, high rigidity, reasonable structural stress, convenience in construction and excellent durability, the problems of insufficient overall rigidity and poor stability of the through arch bridge suspension bridge system can be effectively solved, and deformation of the trussed steel structural stiffening longerons, which is not beneficial to structural stress, caused by temperature change can be fully released.
The patent publication number is CN211571359U, and chinese utility model patent that the announcement day is 2020.09.25 discloses an increase girder transverse rigidity and reduce the formula arched bridge of holding down of basic horizontal thrust, including arch rib, hunch seat, girder, the hoist cable of connecting arch rib and girder, the girder both sides are provided with horizontal cable to the stretch-draw along indulging the bridge, be provided with the bracing piece between girder and the horizontal cable, horizontal cable passes through the horizontal spacing connection that bracing piece and girder formed a plurality of nodes.
But the through arch bridge in the utility model patent has the bending stiffness not enough to and the big problem of the whole construction degree of difficulty.
Disclosure of Invention
The invention aims to provide a through arch bridge suspension bridge system reinforced by a truss type steel structure stiffening longitudinal beam and a construction method thereof, which can achieve the effect of effective use of the through arch bridge suspension bridge system by arranging brackets, supports, suspension rods, bridge decks, the truss type steel structure stiffening longitudinal beam and concrete beams on an arch support. The integral underprop type supporting structure comprises the truss type steel structure stiffening longitudinal beam and the concrete cross beam, and has the advantages of high integral rigidity and good stability, light self weight, high bending rigidity and easy construction of the truss type steel structure stiffening longitudinal beam, small deformation which is unfavorable for structure stress and generated by the integral underprop type supporting structure due to temperature change, good integral reinforcing effect on the whole suspension bridge system, great application value and good economic benefit.
The technical scheme adopted by the invention for solving the problems is as follows: adopt the reinforced (rfd) of holding formula arched bridge of longeron of trussed steel construction stiffening to suspend bridge way system in midair, including the hunch seat, set up bracket on the hunch seat sets up support on the bracket, jib to and decking, still including setting up longeron is stiffened to trussed steel construction on the support, and sets up adjacent between the longeron is stiffened to trussed steel construction and both ends are installed the jib is used for supporting decking's concrete beam.
The further preferred technical scheme is as follows: the truss type steel structure stiffening longitudinal beam comprises four longitudinal main pipes, the longitudinal main pipes are arranged at the same level, horizontal branch pipes between the longitudinal main pipes are arranged at the same sides, vertical branch pipes and inclined branch pipes between the longitudinal main pipes are arranged at the four sides, and the end parts of the longitudinal main pipes are used for being connected with outer package anchoring steel plates of the concrete beam.
The further preferred technical scheme is as follows: the girder steel structure stiffening longitudinal beam is still including setting up keeping away from of outsourcing anchor steel sheet be used for connecting on the concrete beam side the stiffening steel sheet of vertical person in charge.
The further preferred technical scheme is as follows: the truss type steel structure stiffening girder further comprises mounting holes formed in the outsourcing anchoring steel plates.
The further preferred technical scheme is as follows: the mounting holes comprise implanted screw holes arranged between the upper group of vertical main pipes and the lower group of vertical main pipes and two groups of finish rolling threaded reinforcing steel bar holes respectively arranged on the outer sides of the upper group of vertical main pipes and the lower group of vertical main pipes.
The further preferred technical scheme is as follows: the concrete beam comprises a concrete beam main body, a finish-rolled threaded steel bar and an implanted screw, wherein the concrete beam main body is provided with an upper surface and two vertical sides, the hanger rod and the two vertical sides are respectively installed, the finish-rolled threaded steel bar is arranged on the concrete beam main body and penetrates through the finish-rolled threaded steel bar hole, and the implanted screw is arranged on the concrete beam main body and penetrates through the implanted screw hole.
The further preferred technical scheme is as follows: the finish rolling twisted steel is in concrete beam main part both sides all have protruding end, implanted screw rod one end sets up the concrete beam main part outside.
The further preferred technical scheme is as follows: the girder steel construction stiffening girder is still including setting up be used for passing on the outsourcing anchor steel sheet vertical steel sheet trompil of being responsible for, concrete beam is still including setting up respectively on two vertical sides of concrete beam main part and being used for inserting vertical main part fluting of being responsible for the protrusion end.
The further preferred technical scheme is as follows: all be equipped with on two sides of outsourcing anchor steel sheet the steel sheet of putting more energy into, the concrete beam is still including setting up respectively on two vertical sides of concrete beam main part and being used for inserting put more energy into steel sheet and intercommunication the grooved main part channel of main part.
A construction method of a through arch bridge suspension bridge way system reinforced by truss type steel structure stiffening longerons sequentially comprises the following steps:
s1, welding the longitudinal main pipe, the horizontal branch pipe, the vertical branch pipe, the inclined branch pipe, the outer wrapped anchoring steel plate and the stiffening steel plate to obtain the truss type steel structure stiffening longitudinal beam;
s2, pre-burying finish rolling threaded steel bars and an implanted screw on the concrete beam main body, and forming a main body slot and a main body channel on the side surface of the concrete beam main body to obtain the concrete beam, and fixing the concrete beam in a separated manner;
s3, forming a hole in the inner side of the arch support, implanting an anchor rod, and installing the bracket;
s4, fixing the truss type steel structure stiffening longitudinal beams on two sides of the concrete cross beam respectively to complete the installation of the truss type steel structure stiffening longitudinal beams with multiple middle sections;
s5, fixing the last two truss type steel structure stiffening longitudinal beams at the two ends on the temporary support on the bracket, and connecting the truss type steel structure stiffening longitudinal beams with the concrete cross beam to complete the overall structure of the through arch bridge;
and S6, replacing the temporary support with a permanent support, and completing the construction of the whole through-type arch bridge suspension bridge system reinforced by the truss type steel structure stiffening longitudinal beams.
The invention achieves the effect of effective use of the suspension bridge way system of the through arch support by arranging the bracket, the support, the suspension rod, the bridge deck, the truss type steel structure stiffening longitudinal beam and the concrete cross beam on the arch support. The integral underprop type supporting structure comprises the truss type steel structure stiffening longitudinal beam and the concrete cross beam, and has the advantages of high integral rigidity and good stability, light self weight, high bending rigidity and easy construction of the truss type steel structure stiffening longitudinal beam, small deformation which is unfavorable for structure stress and generated by the integral underprop type supporting structure due to temperature change, good integral reinforcing effect on the whole suspension bridge system, great application value and good economic benefit.
Drawings
Fig. 1 is a schematic view of the overall structure of the arch bridge suspension bridge track system of the invention.
Fig. 2 is a schematic view of the position structure of the abutment in the present invention.
FIG. 3 is a schematic view of the connection structure of the girder steel stiffening member and the concrete beam according to the present invention.
FIG. 4 is a vertical cross-sectional view of a truss steel structural stiffener according to the present invention.
FIG. 5 is a schematic structural diagram of the main body of the present invention.
FIG. 6 is a front view of the main body slot and the main body channel of the present invention.
Detailed Description
The following description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention.
Example (b): as shown in fig. 1, 2, 3, 4, 5 and 6, adopt the reinforced formula arch bridge that holds down of trussed steel structure stiffening longeron to suspend bridge road system, including the hunch 11, set up corbel 12 on the hunch 11 sets up support 13, jib 14 on the corbel 12 to and decking 15, still including setting up trussed steel structure stiffening longeron 1 on the support 13, and set up adjacent trussed steel structure stiffening longeron 1 between and both ends installation jib 14 and support concrete beam 2 of decking 15.
In this embodiment, a plurality of all be equipped with one between the longeron is stiffened to truss-like steel construction concrete beam 2, concrete beam 2 directly supports decking 15, two on the edgemost of both sides truss-like steel construction longeron 1 supports on the support 13, accomplish the underslung formula of whole arch bridge and suspend bridge road system and support reinforced structure.
In addition, the support 13 is arranged on the bracket 12 and is used for supporting the load of the whole underslung supporting and reinforcing structure and releasing the deformation of the underslung supporting and reinforcing structure caused by the temperature change.
The truss type steel structure stiffening longitudinal beam 1 comprises four longitudinal main pipes 101, two horizontal branch pipes 102 arranged between the longitudinal main pipes 101 and arranged at the same horizontal height, two vertical branch pipes 103 and inclined branch pipes 104 arranged between the longitudinal main pipes 101 and four outer-wrapped anchoring steel plates 105 arranged at the end parts of the longitudinal main pipes 101 and used for connecting the concrete cross beams 2.
In this embodiment, the longitudinal main pipe 101, the horizontal branch pipe 102, the vertical branch pipe 103, and the inclined branch pipe 104 may be steel plates or steel sections with different sizes, the contact points are welded firmly, the vertical branch pipe 103 and the inclined branch pipe 104 are arranged at an interval, and the outer-coated anchoring steel plate 105 may be rectangular, circular, triangular, diamond-shaped, zigzag-shaped, or mesh-shaped.
The truss type steel structure stiffening longitudinal beam 1 further comprises a stiffening steel plate 106 which is arranged on the side surface of the concrete cross beam 2 and is far away from the outsourcing anchoring steel plate 105 and is used for connecting the longitudinal main pipe 101.
In this embodiment, the stiffening steel plates 106 are perpendicular to the outsourcing anchoring steel plates 105, and it is sufficient that each of the longitudinal main pipes 101 has at least four welding strengthening positions of the stiffening steel plates 106.
The truss type steel structure stiffening girder 1 further comprises mounting holes formed in the outsourcing anchoring steel plates 105. The mounting holes comprise implanted screw holes 107 arranged between the upper and lower groups of the longitudinal main pipes 101 and two groups of finish rolling threaded reinforcing steel holes 108 respectively arranged on the outer sides of the upper and lower groups of the longitudinal main pipes 101.
In this embodiment, the implanted screw holes 107 and the finish-rolled threaded reinforcing holes 108 are the fixed installation positions between the truss type steel structural stiffening longitudinal beam 1 and the concrete cross beam 2, so as to ensure that the whole through-type supporting and reinforcing structure has good integrity and high structural strength.
The concrete beam 2 comprises a concrete beam main body 201, a finish-rolled threaded steel bar 202 and an implanted screw 203, wherein the two ends of the upper surface of the concrete beam main body are respectively provided with the hanging rod 14, and the two vertical sides of the concrete beam main body are respectively provided with the outsourcing anchoring steel plate 105, the finish-rolled threaded steel bar 202 is arranged on the concrete beam main body 201 and penetrates through the finish-rolled threaded steel bar hole 108, and the implanted screw 203 is arranged on the concrete beam main body 201 and penetrates through the implanted screw hole 107.
In this embodiment, the finish-rolled twisted steel 202 may be fixed to the concrete beam main body 201, or a hole may be formed in the concrete beam main body 201 in advance, and the finish-rolled twisted steel 202 may be inserted into the hole.
The finish-rolled twisted steel bars 202 on the upper side and the lower side are matched with the implanted screw 203 in the middle, so that the mounting stability of the outsourcing anchoring steel plate 105 on the concrete beam main body 201 can be ensured to be enough.
The finish rolling twisted steel 202 is arranged on two sides of the concrete beam main body 201 and is provided with protruding ends, and one end of the implanted screw 203 is arranged on the outer side of the concrete beam main body 201. Truss-like steel construction stiffening longitudinal beam 1 is still including setting up on the outsourcing anchor steel sheet 105 and being used for passing the steel sheet trompil 109 of vertical person in charge 101, concrete beam 2 is still including setting up respectively on two vertical sides of concrete beam main part 201 and being used for inserting the main part fluting 204 of vertical person in charge 101 protrusion end. All be equipped with on two sides of outsourcing anchor steel sheet 105 stiffening steel sheet 106, concrete beam 2 is still including setting up respectively on two vertical sides of concrete beam main part 201 and be used for inserting stiffening steel sheet 106 and intercommunication the main part channel 205 of main part fluting 204.
In this embodiment, the protruding end of the longitudinal main pipe 101 on the other side of the external-wrapping anchoring steel plate 105 is inserted into the main body slot 204, so that a direct installation structure is provided between the longitudinal main pipe 101 and the concrete beam main body 201, and the installation strength of the truss-type steel structure stiffening longitudinal beam 1 on the concrete beam main body 201 is further ensured.
In addition, the steel sheet of putting more energy into 106 divide into two sets ofly, sets up respectively on two sides of outsourcing anchor steel sheet 105, be close to like this concrete beam main part 201 that a set of the steel sheet of putting more energy into 106 just can block into main part channel 205, the purpose is the auxiliary reinforcement equally vertical person in charge 101 with concrete beam main part 201 guarantees wholly the formula of holding down supports reinforced structure stability height, has one and aligns the grafting relation in advance, makes things convenient for subsequent whole construction operation.
A construction method of a through arch bridge suspension bridge way system reinforced by truss type steel structure stiffening longerons sequentially comprises the following steps:
s1, welding the longitudinal main pipe 101, the horizontal branch pipe 102, the vertical branch pipe 103, the inclined branch pipe 104, the outer wrapping anchoring steel plate 105 and the stiffening steel plate 106 to obtain the truss type steel structure stiffening girder 1;
s2, pre-burying finish-rolled threaded steel bars 202 and an implanted screw 203 on the concrete beam main body 201, and opening a main body slot 204 and a main body channel 205 on the side surface of the concrete beam main body 201 to obtain the concrete beam 2, and fixing the concrete beam 2 in a separated manner;
s3, forming a hole in the inner side of the arch support 11, implanting an anchor rod, and installing the bracket 12;
s4, fixing the truss type steel structure stiffening longitudinal beam 1 on two sides of the concrete beam 2 respectively, and completing installation of the truss type steel structure stiffening longitudinal beam 1 with multiple middle sections;
s5, fixing the last two truss steel structure stiffening longitudinal beams 1 at the two ends on the temporary supports on the corbels 12, and connecting the truss steel structure stiffening longitudinal beams with the concrete cross beams 2 to complete the integral structure of the through arch bridge;
and S6, replacing the temporary support with the permanent support 13, and completing the construction of the whole through-type arch bridge suspension bridge system reinforced by the truss steel structure stiffening longeron.
In this embodiment, the construction method is performed in the manner of the prior art, so as to ensure that the construction is performed to obtain the undersea arch bridge suspension bridge way system, which has the advantages of simple and efficient construction and high application value.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various modifications can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. These are non-inventive modifications, which are intended to be protected by patent laws within the scope of the claims appended hereto.

Claims (10)

1. Adopt the reinforced (rfd) formula arched bridge that underpins of girder steel construction stiffening longeron to suspend bridge way system in midair, including hunch seat (11), set up bracket (12) on hunch seat (11) set up support (13) on bracket (12), jib (14) to and decking (15), its characterized in that: still including setting up truss-like steel construction stiffening longitudinal beam (1) on support (13) to and set up adjacent between truss-like steel construction stiffening longitudinal beam (1) and both ends installation jib (14) and be used for supporting concrete crossbeam (2) of decking (15).
2. The underslung arch bridge suspension bridge conduit system reinforced by the trussed steel structural stiffening stringers of claim 1, wherein: truss-like steel construction stiffening longitudinal beam (1) includes four vertical person in charge (101), sets up two at same level horizontal branch (102) between vertical person in charge (101), set up two with one side vertical branch pipe (103), the slope branch pipe (104) between vertical person in charge (101) and set up four vertical person in charge (101) tip is used for connecting outsourcing anchor steel sheet (105) of concrete beam (2).
3. The underslung arch bridge suspension bridge conduit system reinforced with trussed steel structural stiffening stringers of claim 2, wherein: the truss type steel structure stiffening longitudinal beam (1) further comprises a stiffening steel plate (106) which is arranged far away from the outsourcing anchoring steel plate (105) on the side surface of the concrete cross beam (2) and used for connecting the longitudinal main pipe (101).
4. The underslung arch bridge suspension bridge conduit system reinforced with trussed steel structural stiffening stringers of claim 3, wherein: the truss type steel structure stiffening longitudinal beam (1) further comprises a mounting hole formed in the outsourcing anchoring steel plate (105).
5. The underslung arch bridge suspension bridge conduit system reinforced by trussed steel structural stiffening stringers of claim 4, wherein: the mounting hole comprises an implanted screw hole (107) arranged between the upper group of the vertical main pipe (101) and the lower group of the vertical main pipe (101), and two groups of finish rolling threaded reinforcing steel bar holes (108) respectively arranged on the outer sides of the upper group of the vertical main pipe and the lower group of the vertical main pipe (101).
6. The underslung arch bridge suspension bridge conduit system reinforced by trussed steel structural stiffening stringers of claim 5, wherein: concrete beam (2) include that the upper surface both ends set up respectively jib (14), two vertical sides are installed respectively concrete beam main part (201) of outsourcing anchor steel sheet (105), set up on concrete beam main part (201) and pass finish rolling screw thread reinforcing bar (202) of finish rolling screw thread reinforcing bar hole (108), and set up and be in on concrete beam main part (201) and pass implanted screw rod (203) of implanting screw hole (107).
7. The underslung arch bridge suspension bridge conduit system reinforced with trussed steel structural stiffening stringers of claim 6, wherein: the finish rolling twisted steel (202) is arranged on two sides of the concrete beam main body (201) and is provided with protruding ends, and one end of the implanted screw (203) is arranged on the outer side of the concrete beam main body (201).
8. The underslung arch bridge suspension bridge conduit system reinforced with trussed steel structural stiffening stringers of claim 6, wherein: truss-like steel construction stiffening longitudinal beam (1) is still including setting up be in outsourcing anchor steel sheet (105) are gone up and are used for passing steel sheet trompil (109) of vertical person in charge (101), concrete beam (2) are still including setting up respectively on two vertical sides of concrete beam main part (201) and be used for inserting main part fluting (204) of vertical person in charge (101) protrusion end.
9. The underslung arch bridge suspension bridge approach system reinforced with trussed steel structural stiffening stringers of claim 8, wherein: all be equipped with on two sides of outsourcing anchor steel sheet (105) stiffening steel sheet (106), concrete beam (2) are still including setting up respectively on two vertical sides of concrete beam main part (201) and be used for inserting stiffening steel sheet (106) and intercommunication main part channel (205) of main part fluting (204).
10. A method of constructing an underslung arch bridge suspension bridge system reinforced with trussed steel structural stiffeners as defined in claim 9, comprising the steps of:
s1, welding the longitudinal main pipe (101), the horizontal branch pipe (102), the vertical branch pipe (103), the inclined branch pipe (104), the outer wrapping anchoring steel plate (105) and the stiffening steel plate (106) to obtain the truss type steel structure stiffening longitudinal beam (1);
s2, pre-burying finish rolling threaded steel bars (202) and an implanted screw (203) on the concrete beam main body (201), and opening a main body slot (204) and a main body channel (205) on the side surface of the concrete beam main body (201) to obtain the concrete beam (2) and fixing the concrete beam in a separated manner;
s3, forming a hole in the inner side of the arch support (11), implanting an anchor rod, and installing the bracket (12);
s4, fixing the truss type steel structure stiffening longitudinal beams (1) on two sides of the concrete cross beam (2) respectively, and completing installation of the truss type steel structure stiffening longitudinal beams (1) with multiple sections in the middle;
s5, fixing the last two truss type steel structure stiffening longitudinal beams (1) at the two ends on a temporary support on the bracket (12), and connecting the truss type steel structure stiffening longitudinal beams with the concrete cross beam (2) to complete the integral structure of the through arch bridge;
and S6, replacing the temporary support with a permanent support (13), and completing the construction of the whole through girder steel structure stiffening girder reinforced through the through arch bridge suspension bridge system.
CN202110079153.XA 2021-01-21 2021-01-21 Deck type arch bridge suspension bridge way system reinforced by truss type steel structure stiffening longitudinal beams and construction method thereof Pending CN112627013A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN202110079153.XA CN112627013A (en) 2021-01-21 2021-01-21 Deck type arch bridge suspension bridge way system reinforced by truss type steel structure stiffening longitudinal beams and construction method thereof
LU502338A LU502338B1 (en) 2021-01-21 2021-07-09 Suspended bridge deck of through type arch bridge reinforced by stiffening longitudinal beam of trussed steel structure and construction method thereof
PCT/CN2021/105468 WO2022156157A1 (en) 2021-01-21 2021-07-09 Through arch bridge suspension bridge system reinforced by truss steel structure stiffened stringers and construction method therefor

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Application Number Priority Date Filing Date Title
CN202110079153.XA CN112627013A (en) 2021-01-21 2021-01-21 Deck type arch bridge suspension bridge way system reinforced by truss type steel structure stiffening longitudinal beams and construction method thereof

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CN112627013A true CN112627013A (en) 2021-04-09

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114737465A (en) * 2022-04-26 2022-07-12 中国华西工程设计建设有限公司 Large-span bridge structure and construction method thereof
WO2022156157A1 (en) * 2021-01-21 2022-07-28 福州大学 Through arch bridge suspension bridge system reinforced by truss steel structure stiffened stringers and construction method therefor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022156157A1 (en) * 2021-01-21 2022-07-28 福州大学 Through arch bridge suspension bridge system reinforced by truss steel structure stiffened stringers and construction method therefor
CN114737465A (en) * 2022-04-26 2022-07-12 中国华西工程设计建设有限公司 Large-span bridge structure and construction method thereof
CN114737465B (en) * 2022-04-26 2024-03-29 中国华西工程设计建设有限公司 Large-span bridge structure and construction method thereof

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