CN112962475A - B-T-B combined structure for upgrading and reconstructing bridge - Google Patents
B-T-B combined structure for upgrading and reconstructing bridge Download PDFInfo
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- CN112962475A CN112962475A CN202110198039.9A CN202110198039A CN112962475A CN 112962475 A CN112962475 A CN 112962475A CN 202110198039 A CN202110198039 A CN 202110198039A CN 112962475 A CN112962475 A CN 112962475A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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Abstract
The invention discloses a B-T-B combined structure for upgrading and reconstructing a bridge, which comprises a guardrail device, a support connecting device, a fixed connecting device, a support upright post device and a support base, wherein a fixed connecting reinforcement cage is arranged in the support base, six support connecting reinforcement cages are fixedly connected in the fixed connecting reinforcement cage through binding wires, each support connecting reinforcement cage comprises eight support reinforcements, reinforcing reinforcement columns are fixedly connected at the top ends of the support reinforcements, and a plurality of first connecting reinforcement rings are fixedly connected in the eight reinforcing reinforcement columns at equal intervals through the binding wires. The invention has the beneficial effects that: according to the invention, the first connecting reinforcing rib and the second connecting reinforcing rib penetrate through the concrete poured outside and extend outwards, and the extending end is embedded in the existing bridge foundation, so that the connectivity between the existing bridge foundation and the upgraded bridge foundation is improved, and the stability and reliability of the added bridge foundation are ensured.
Description
Technical Field
The invention relates to a B-T-B combined structure, in particular to a B-T-B combined structure for bridge upgrading and reconstruction, and belongs to the technical field of bridge upgrading and reconstruction.
Background
The bridge is strengthened, and technical measures are taken for improving the bearing capacity and the traffic capacity of the original bridge. Besides being used for repairing the damaged bridge, the method is also used for reconstructing the original bridge. The main approaches are to increase the load capacity of the bridge and widen the roadway.
In order to improve the bearing capacity of the bridge and ensure the safety of the bridge, in the working process of widening the bridge, the supporting base can be transversely lengthened on the basis of the original bridge supporting base, and a connecting structure is added between the base and the bridge so as to improve the connectivity between the bridge and the base, and a connecting structure is added on a guardrail of the bridge so as to improve the connection between the guardrail and the bridge.
Disclosure of Invention
The invention aims to solve the problems and provide a B-T-B combined structure for upgrading and reconstructing a bridge.
The invention achieves the above purpose through the following technical scheme, and the B-T-B combined structure for bridge upgrading and reconstruction comprises a guardrail device, a support connecting device, a fixed connecting device, a support upright post device and a support base, wherein a fixed connecting reinforcement cage is arranged inside the support base, six support connecting reinforcement cages are fixedly connected inside the fixed connecting reinforcement cage through binding wires, each support connecting reinforcement cage comprises eight support reinforcements, reinforced reinforcement columns are fixedly connected at the top ends of the support reinforcements, a plurality of first connecting reinforcement rings are fixedly connected inside the eight reinforced reinforcement columns at equal intervals through the binding wires, a plurality of second connecting reinforcement rings are fixedly connected outside the eight reinforced reinforcement columns at equal intervals through the binding wires, reinforced connecting reinforcement rings are fixedly connected outside the six second connecting reinforcement rings, and six upright post fixed support reinforcements are fixedly connected on the inner walls of the reinforced connecting reinforcement rings through the binding wires, the first connecting reinforcing bar ring, the second connecting reinforcing bar ring, the reinforcing steel bar column, the upright post fixing and supporting reinforcing bars and the reinforcing connecting reinforcing bar ring form a fixing and supporting reinforcing bar cage, the tops of the two sides of the fixing and supporting reinforcing bar cage are fixedly connected with seven groups of first inclined supporting reinforcing bars, second inclined supporting reinforcing bars and third inclined supporting reinforcing bars in sequence, the front top of the fixing and supporting reinforcing bar cage is fixedly connected with two groups of second connecting reinforcing bars, the outer wall of the second connecting reinforcing bar is fixedly connected with a plurality of second fixing reinforcing bar rings at equal intervals, the outer part of the second fixing reinforcing bar ring is fixedly connected with four first connecting reinforcing bars, the outer wall of the four first connecting reinforcing bars is fixedly connected with a first fixing reinforcing bar ring, the back top of the supporting upright post device is fixedly connected with a guardrail device, the inner part of the guardrail device is fixedly connected with positioning upright post reinforcing bars, the front of, the both ends of connecting the stretching muscle are the fixed first fixed stand group of fixedly connected with and the fixed stand group of second respectively, the fixed stand group of second includes six guardrail fixed steel bars, six the outside equidistance fixedly connected with of guardrail fixed steel bar encircles five fixed connection reinforcing bars.
Preferably, fixed connection steel reinforcement cage includes three base fixed steel bar ring, six vertical fixed steel bars of the inside fixedly connected with of base fixed steel bar ring, adjacent two horizontal fixed steel bars of fixedly connected with between the base fixed steel bar ring, six support the connection steel reinforcement cage through pricking silk and vertical fixed steel bar fixed connection.
Preferably, the two sides inside the base fixing reinforcing steel bar ring are fixedly connected with the two longitudinal fixing reinforcing steel bars through binding wires respectively, the four transverse fixing reinforcing steel bars are fixedly connected with the longitudinal fixing reinforcing steel bars on the two sides through binding wires respectively, and the base fixing reinforcing steel bar ring is poured inside concrete.
Preferably, six fixed stay steel reinforcement cages are buried underground in the support post device, fixed stay steel reinforcement cage and support connection steel reinforcement cage fixed connection, fixed stay steel reinforcement cage is the same with support connection steel reinforcement cage structure, the inside steel reinforcement post welding of reinforcing steel post and support connection steel reinforcement cage.
Preferably, all with two stand fixed stay reinforcing bar fixed connection the inside both sides of reinforcement connection reinforcing bar ring, all with a stand fixed stay reinforcing bar fixed connection, six at the inside two sides of the face and back of reinforcement connection reinforcing bar ring middle part stand fixed stay reinforcing bar is corresponding with six longitudinal fixity reinforcing bars, stand fixed stay reinforcing bar and longitudinal fixity reinforcing bar welding.
Preferably, the number of the first connection rebar ring and the second connection rebar ring inside each of the fixed support rebar cages is the same, and the number of the reinforcement connection rebar rings is the same as that of the first connection rebar ring.
Preferably, first fixed steel bar ring, the fixed steel bar ring of second, first connection strengthening rib and second connection strengthening rib constitute the transverse connection steel reinforcement cage, two transverse connection steel reinforcement cages have been buried underground to fixed connection device inside, the inside strengthening rib is connected including four first connection strengthening ribs and four second of transverse connection steel reinforcement cage, first connection strengthening rib and second connection strengthening rib are all through pricking silk and fixed stay steel reinforcement cage fixed connection and outside extension, first connection strengthening rib and second connection strengthening rib outer wall are a plurality of first fixed steel bar rings of equidistance fixedly connected with respectively and the fixed steel bar ring of second.
Preferably, the equal fixedly connected with in support post device both sides top supports connecting device, seven diagonal bracing reinforcing bar groups have all been buried underground to support connecting device inside, diagonal bracing reinforcing bar group is including first diagonal bracing reinforcing bar, second diagonal bracing reinforcing bar and third diagonal bracing reinforcing bar, first diagonal bracing reinforcing bar, second diagonal bracing reinforcing bar and third diagonal bracing reinforcing bar all set up to "V" font, first diagonal bracing reinforcing bar, second diagonal bracing reinforcing bar and third diagonal bracing reinforcing bar are close to the one end level setting of fixed stay reinforcement cage, and link to hit with fixed stay reinforcement cage is fixed through pricking the silk.
Preferably, first fixed stand group is the same with the fixed stand group structure of second, six guardrail fixed reinforcement bottom and two sets of bearing diagonal reinforcing bar group welding, four connect the stretching muscle and set up respectively between two adjacent fixed connection reinforcing bar rings, connect the stretching muscle all through pricking silk and guardrail fixed reinforcement fixed connection.
Preferably, the first fixed column group, the connecting tensile rib, the positioning column steel bars and the second fixed column group form a guardrail steel bar cage, and the guardrail steel bar cage is buried in the guardrail device.
The invention has the beneficial effects that:
first, the present invention utilizes a first fixed reinforcing ring, the fixed reinforcing bar ring of second, first connection strengthening rib and second connection strengthening rib constitute the transverse connection steel reinforcement cage, two transverse connection steel reinforcement cages have been buried underground to fixed connection device inside, transverse connection steel reinforcement cage is inside including four first connection strengthening ribs and four second connection strengthening ribs, first connection strengthening rib and second connection strengthening rib are all through pricking silk and fixed stay steel reinforcement cage fixed connection and outside extension, first connection strengthening rib and second connection strengthening rib outer wall are a plurality of first fixed reinforcing bars of equidistance fixedly connected with ring sum second fixed reinforcing bar ring respectively, first connection strengthening rib and second connection strengthening rib run through the outside concrete of pouring and outside extension, the extension is buried underground inside current bridge base, improve the connectivity between current bridge base and the upgrading bridge base, guarantee the stability and the reliability of the bridge base who adds.
Secondly, the invention utilizes the supporting column device to fixedly connect with the supporting connecting device on the top of both sides, seven groups of inclined supporting steel bar groups are embedded in the supporting connecting device, each inclined supporting steel bar group comprises a first inclined supporting steel bar, a second inclined supporting steel bar and a third inclined supporting steel bar, the first inclined supporting steel bar, the second inclined supporting steel bar and the third inclined supporting steel bar are all arranged in a V shape, the included angle of the first inclined supporting steel bar, the second inclined supporting steel bar and the third inclined supporting steel bar is arranged in one hundred fifty degrees, one ends of the first inclined supporting steel bar, the second inclined supporting steel bar and the third inclined supporting steel bar far away from the fixed supporting steel bar cage and the top end of the column fixed supporting steel bar are in the same horizontal plane, one ends of the first inclined supporting steel bar, the second inclined supporting steel bar and the third inclined supporting steel bar near the fixed supporting steel bar cage are horizontally arranged and fixedly connected with the fixed supporting steel bar cage through a binding wire, the connection between the bridge and the base is improved, the connection between the bridge beam plate and the base is improved, and the bearing capacity of the bridge is improved.
Thirdly, the first fixed column group and the second fixed column group are identical in structure, the bottom ends of the six guardrail fixed reinforcing steel bars are welded with the two groups of inclined supporting reinforcing steel bars, four connecting stretching ribs are respectively arranged between the two adjacent fixed connecting reinforcing steel bar rings, the connecting stretching ribs are fixedly connected with the guardrail fixed reinforcing steel bars through binding wires, and the bottom ends of the positioning upright column reinforcing steel bars are welded with the top ends of the upright column fixed supporting reinforcing steel bars on the back face inside the fixed supporting reinforcing steel bar cage. First fixed stand group, connect the fixed stand group of stretching muscle, reference column reinforcing bar and second and constitute guardrail steel reinforcement cage, guardrail steel reinforcement cage buries underground inside guardrail device, and guardrail device pours on support connecting device and reference column device top, improves the connectivity between guardrail and the bridge to improve the stability that the guardrail was built, improve the protective capacities of guardrail, the convenience is installed the location to bridge beam slab.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the barrier device of the present invention;
FIG. 3 is a schematic view of the support connection device of the present invention;
FIG. 4 is a schematic view of the internal structure of the supporting and connecting device of the present invention;
FIG. 5 is a schematic structural view of the support pillar apparatus of the present invention;
FIG. 6 is an enlarged view of the structure at A in FIG. 4 according to the present invention;
FIG. 7 is an enlarged view of the structure at B in FIG. 5 according to the present invention;
FIG. 8 is a schematic view of a support base structure according to the present invention;
FIG. 9 is a schematic view of the internal steel structure of the support base of the present invention.
In the figure: 1. a guardrail device; 2. a support connection device; 3. a fixed connection device; 4. a support column device; 5. a support base; 101. a first fixed column set; 102. connecting the stretching ribs; 103. positioning the upright column steel bar; 104. fixing steel bars on the guardrails; 105. fixedly connecting a reinforcing steel bar ring; 201. a first diagonal bracing rebar; 202. a second diagonal bracing bar; 203. a third diagonal bracing bar; 301. a first fixed rebar ring; 302. a second fixed rebar ring; 303. a first connecting reinforcing rib; 304. a second connecting reinforcing rib; 401. reinforcing the steel bar column; 402. the upright posts fix and support the reinforcing steel bars; 403. a first connecting reinforcing bar ring; 404. a second connecting reinforcement ring; 405. reinforcing the connecting reinforcing steel bar ring; 501. fixedly connecting a reinforcement cage; 502. supporting and connecting a reinforcement cage; 5011. a reinforcing steel bar ring is fixed on the base; 5012. longitudinally fixing the reinforcing steel bars; 5013. and transversely fixing the steel bars.
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.
Referring to fig. 1-9, a B-T-B composite structure for upgrading and reconstructing a bridge comprises a guardrail device 1, a support connection device 2, a fixed connection device 3, a support column device 4 and a support base 5, wherein a fixed connection reinforcement cage 501 is arranged inside the support base 5, six support connection reinforcement cages 502 are fixedly connected inside the fixed connection reinforcement cage 501 through binding wires, each support connection reinforcement cage 502 comprises eight support reinforcements, a reinforced reinforcement column 401 is fixedly connected to the top end of each support reinforcement, a plurality of first connection reinforcement rings 403 are fixedly connected inside the eight reinforced reinforcement columns 401 at equal intervals through binding wires, a plurality of second connection reinforcement rings 404 are fixedly connected to the outside of the eight reinforced reinforcement columns 401 at equal intervals through binding wires, a reinforced connection reinforcement ring 405 is fixedly connected to the outside of the six second connection reinforcement rings 404, six column fixed support reinforcements 402 are fixedly connected to the inner wall of the reinforced connection reinforcement rings 405 through binding wires, the first connecting reinforcing bar ring 403, the second connecting reinforcing bar ring 404, the reinforcing steel bar column 401, the column fixing supporting reinforcing bar 402 and the reinforcing connecting reinforcing bar ring 405 form a fixing supporting reinforcing bar cage, the top parts of the two sides of the fixing supporting reinforcing bar cage are fixedly connected with seven groups of first inclined supporting reinforcing bars 201, second inclined supporting reinforcing bars 202 and third inclined supporting reinforcing bars 203 in sequence, the top part of the front surface of the fixing supporting reinforcing bar cage is fixedly connected with two groups of second connecting reinforcing bars 304, the outer wall of the second connecting reinforcing bar 304 is fixedly connected with a plurality of second fixing reinforcing bar rings 302 at equal intervals, the outer part of the second fixing reinforcing bar ring 302 is fixedly connected with four first connecting reinforcing bars 303, the outer wall of the four first connecting reinforcing bars 303 is fixedly connected with a first fixing reinforcing bar ring 301, the top end of the back surface of the supporting column device 4 is fixedly connected with the guardrail device 1, the inside of the guardrail device 1 is fixedly connected with the, the two ends of the connecting stretching rib 102 are respectively and fixedly connected with a first fixed column group 101 and a second fixed column group, the second fixed column group comprises six guardrail fixing reinforcing steel bars 104, and five fixed connecting reinforcing steel bar rings 105 are fixedly connected with the outside of the six guardrail fixing reinforcing steel bars 104 at equal intervals.
As a technical optimization scheme of the present invention, the fixed connection reinforcement cage 501 includes three base fixing reinforcement rings 5011, six longitudinal fixing reinforcements 5012 are fixedly connected inside the base fixing reinforcement rings 5011, two transverse fixing reinforcements 5013 are fixedly connected between two adjacent base fixing reinforcement rings 5011, and six support connection reinforcement cages 502 are fixedly connected with the longitudinal fixing reinforcements 5012 through binding wires. The two sides inside the base fixed steel bar ring 5011 are fixedly connected with the two longitudinal fixed steel bars 5012 through binding wires respectively, the four transverse fixed steel bars 5013 are fixedly connected with the longitudinal fixed steel bars 5012 on the two sides through binding wires respectively, and the base fixed steel bar ring 5011 is poured inside concrete. Six fixed support steel reinforcement cages are buried underground inside the support column device 4, the fixed support steel reinforcement cages are fixedly connected with the support connecting steel reinforcement cage 502, the fixed support steel reinforcement cages are identical in structure with the support connecting steel reinforcement cage 502, and the reinforcing steel columns 401 are welded with the steel reinforcement columns inside the support connecting steel reinforcement cage 502.
As a technical optimization scheme of the present invention, both sides of the inside of the reinforcing connection steel bar ring 405 are fixedly connected to two column fixing support steel bars 402, the middle parts of the front and back surfaces of the inside of the reinforcing connection steel bar ring 405 are fixedly connected to one column fixing support steel bar 402, six column fixing support steel bars 402 correspond to six longitudinal fixing steel bars 5012, and the column fixing support steel bars 402 and the longitudinal fixing steel bars 5012 are welded. The number of first connecting tendons 403 and second connecting tendons 404 in each of the fixed support cages is the same, and the number of reinforcing connecting tendons 405 and first connecting tendons 403 is the same.
As a technical optimization scheme of the present invention, the first fixed rebar ring 301, the second fixed rebar ring 302, the first connecting rebar 303 and the second connecting rebar 304 form a transverse connecting rebar cage, two transverse connecting rebar cages are embedded inside the fixed connection device 3, the transverse connecting rebar cage includes four first connecting rebar 303 and four second connecting rebar 304 inside, the first connecting rebar 303 and the second connecting rebar 304 are both fixedly connected with the fixed supporting rebar cage through a binding wire and extend outward, the outer walls of the first connecting rebar 303 and the second connecting rebar 304 are fixedly connected with a plurality of first fixed rebar rings 301 and second fixed rebar rings 302 at equal intervals, the first connecting rebar 303 and the second connecting rebar 304 penetrate through concrete poured outside and extend outward, and the extension end is embedded inside an existing bridge foundation.
As a technical optimization scheme of the invention, the top parts of both sides of a support column device 4 are fixedly connected with a support connecting device 2, seven groups of inclined support steel bar groups are embedded in the support connecting device 2, each inclined support steel bar group comprises a first inclined support steel bar 201, a second inclined support steel bar 202 and a third inclined support steel bar 203, each first inclined support steel bar 201, each second inclined support steel bar 202 and each third inclined support steel bar 203 are arranged in a V shape, the included angle between each first inclined support steel bar 201, each second inclined support steel bar 202 and each third inclined support steel bar 203 is set to be one hundred fifty degrees, one ends of the first inclined support steel bar 201, each second inclined support steel bar 202 and each third inclined support steel bar 203, which are far away from a fixed support steel bar cage, are in the same horizontal plane with the top end of a column fixed support steel bar 402, one ends of the first inclined support steel bar 201, each second inclined support steel bar 202 and each third inclined support steel bar 203, which are close to the fixed support steel bar cage, and is fixedly connected with the fixed support reinforcement cage through the binding wires.
As a technical optimization scheme of the invention, the first fixed column group 101 and the second fixed column group have the same structure, the bottom ends of six guardrail fixed steel bars 104 are welded with two groups of inclined supporting steel bars, four connecting stretching bars 102 are respectively arranged between two adjacent fixed connecting steel bar rings 105, the connecting stretching bars 102 are all fixedly connected with the guardrail fixed steel bars 104 through binding wires, and the bottom ends of the positioning column steel bars 103 are welded with the top ends of the column fixed supporting steel bars 402 on the back surface inside the fixed supporting steel bar cage. The first fixed column group 101, the connecting stretching rib 102, the positioning column steel bar 103 and the second fixed column group form a guardrail steel bar cage, the guardrail steel bar cage is buried in the guardrail device 1, and the guardrail device 1 is poured on the top ends of the supporting connecting device 2 and the supporting column device 4.
When the invention is used;
please refer to fig. 1 to 9;
carrying out operation one;
firstly, embedding a base steel reinforcement cage consisting of a fixed connection steel reinforcement cage 501 and a support connection steel reinforcement cage 502 in the foundation on one side of the existing bridge base, and then pouring concrete in the base steel reinforcement cage until the base steel reinforcement cage is completely wrapped in the concrete;
carrying out operation two;
when concrete poured outside the supporting base 5 is solidified, the upright post fixed supporting steel bars 402 of the fixed supporting steel bar cage are welded with the longitudinal fixed steel bars 5012, and the reinforced steel bar posts 401 are welded with the fixed steel bars of the supporting and connecting steel bar cage 502, so that the fixed supporting steel bar cage is completely fixed on the top of the base steel bar cage;
carrying out operation three;
then, the two transverse connecting reinforcement cages are fixedly connected with the fixed supporting reinforcement cage through the first connecting reinforcement 303 and the second connecting reinforcement 304, and meanwhile, one ends, far away from the fixed supporting reinforcement cage, of the first connecting reinforcement 303 and the second connecting reinforcement 304 are inserted into the existing bridge foundation, so that the first connecting reinforcement 303 and the second connecting reinforcement 304 are fixedly connected with the existing bridge foundation;
carrying out operation four;
then, the seven groups of diagonal bracing steel bar groups are respectively fixedly connected with the fixed bracing steel bar cage through binding wires, then casting shells are built outside the fixed bracing steel bar cage, the transverse connecting steel bar cage and the seven groups of diagonal bracing steel bar groups, and concrete is cast inside, so that the supporting upright post device 4 is fixedly connected with the existing bridge foundation until the concrete is solidified;
carrying out operation five;
and finally, welding guardrail reinforcement cages on the top ends of the support column device 4 and the two support connecting devices 2 to fixedly connect the first fixed column group 101 and the second fixed column group with the support connecting devices 2, reserving connection stretching ribs 102 for guardrail connection at two ends of a guardrail pouring shell, and pouring concrete.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides a be used for bridge upgrading to reform transform B-T-B integrated configuration, includes guardrail device (1), supports connecting device (2), fixed connection device (3), support column device (4) and support base (5), its characterized in that: support base (5) inside fixed connection steel reinforcement cage (501) that is provided with, fixed connection steel reinforcement cage (501) is inside supports connection steel reinforcement cage (502) through six support bar of bundle silk fixedly connected with, support connection steel reinforcement cage (502) all include eight supporting reinforcement, reinforcing reinforcement top fixedly connected with reinforcing steel bar post (401), eight reinforcing steel bar post (401) is inside through a plurality of first connecting reinforcement rings (403) of bundle silk equidistance fixedly connected with, eight reinforcing steel bar post (401) is outside through a plurality of second connecting reinforcement rings (404) of bundle silk equidistance fixedly connected with, six reinforcing steel bar ring (405) is connected in the outside fixedly connected with of second connecting reinforcement ring (404), reinforcing connecting reinforcement ring (405) inner wall is through six stand fixed connection support bars (402) of bundle silk fixedly connected with, first connecting reinforcement ring (403), The second connecting reinforcing ring (404), the reinforcing steel bar column (401), the column fixing supporting reinforcing steel bar (402) and the reinforcing connecting reinforcing ring (405) form a fixing supporting reinforcing cage, the tops of the two sides of the fixing supporting reinforcing cage are fixedly connected with seven groups of first inclined supporting reinforcing steel bars (201), second inclined supporting reinforcing steel bars (202) and third inclined supporting reinforcing steel bars (203) in sequence, the front top of the fixing supporting reinforcing cage is fixedly connected with two groups of second connecting reinforcing steel bars (304), the outer wall of each second connecting reinforcing steel bar (304) is fixedly connected with a plurality of second fixing reinforcing steel bar rings (302) at equal intervals, the outer part of each second fixing reinforcing steel bar ring (302) is fixedly connected with four first connecting reinforcing steel bars (303), the outer wall of each first connecting reinforcing steel bar (303) is fixedly connected with a first fixing reinforcing steel bar ring (301), and the top end of the back of the supporting column device (4) is, guardrail device (1) inside fixedly connected with location stand reinforcing bar (103), location stand reinforcing bar (103) openly four connection stretching muscle (102) of equidistance fixedly connected with, connect the first fixed stand group of fixedly connected with (101) and the fixed stand group of second respectively at the both ends of stretching muscle (102), the fixed stand group of second includes six guardrail fixed reinforcement (104), six five fixed connection reinforcing bar rings (105) of guardrail fixed reinforcement (104) outside equidistance fixedly connected with.
2. The B-T-B composite structure for bridge upgrading and reconstruction as claimed in claim 1, wherein: fixed connection steel reinforcement cage (501) include three base fixed reinforcement ring (5011), six vertical fixed reinforcement (5012), adjacent two of the inside fixedly connected with of base fixed reinforcement ring (5011) two horizontal fixed reinforcement (5013), six of fixedly connected with between base fixed reinforcement ring (5011) support connecting reinforcement cage (502) through pricking silk and vertical fixed reinforcement (5012) fixed connection.
3. The B-T-B composite structure for bridge upgrading and reconstruction as claimed in claim 2, wherein: the concrete is characterized in that two sides inside the base fixing steel bar ring (5011) are fixedly connected with two longitudinal fixing steel bars (5012) through binding wires, four transverse fixing steel bars (5013) are fixedly connected with the longitudinal fixing steel bars (5012) on two sides through binding wires, and the base fixing steel bar ring (5011) is poured inside concrete.
4. The B-T-B composite structure for bridge upgrading and reconstruction as claimed in claim 1, wherein: six fixed stay steel reinforcement cages have been buried underground to support post device (4) inside, fixed stay steel reinforcement cage and support connecting reinforcement cage (502) fixed connection, fixed stay steel reinforcement cage is the same with support connecting reinforcement cage (502) structure, reinforcing steel bar post (401) and the inside steel bar post welding of support connecting reinforcement cage (502).
5. The B-T-B composite structure for bridge upgrading and reconstruction as claimed in claim 1, wherein: the inside both sides of reinforcing connection reinforcing bar ring (405) all with two stand fixed stay reinforcing bar (402) fixed connection, reinforcing connection reinforcing bar ring (405) inside two sides of the face middle part all with a stand fixed stay reinforcing bar (402) fixed connection, six stand fixed stay reinforcing bar (402) are corresponding with six vertical fixed reinforcing bar (5012), stand fixed stay reinforcing bar (402) and vertical fixed reinforcing bar (5012) welding.
6. The B-T-B composite structure for bridge upgrading and reconstruction as claimed in claim 1, wherein: the number of first connecting tendons (403) and second connecting tendons (404) inside each of the fixed support cages is the same, and the number of the reinforcing connecting tendons (405) and the number of first connecting tendons (403) are the same.
7. The B-T-B composite structure for bridge upgrading and reconstruction as claimed in claim 1, wherein: first fixed ring reinforcement (301), the fixed ring reinforcement of second (302), first connection strengthening rib (303) and the second connection strengthening rib (304) constitute the transverse connection steel reinforcement cage, two transverse connection steel reinforcement cages have been buried underground to fixed connection device (3) inside, transverse connection steel reinforcement cage is inside to be connected strengthening rib (303) and four second connection strengthening ribs (304) including four, first connection strengthening rib (303) and second connection strengthening rib (304) are all through pricking silk and fixed stay steel reinforcement cage fixed connection and outwards extending, first connection strengthening rib (303) and second connection strengthening rib (304) outer wall are a plurality of first fixed ring reinforcement of equidistance fixedly connected with (301) and the fixed ring reinforcement of second (302) respectively.
8. The B-T-B composite structure for bridge upgrading and reconstruction as claimed in claim 1, wherein: the utility model discloses a support column device, including support post device (4) both sides top equal fixedly connected with support connecting device (2), seven diagonal bracing reinforcing bar groups have all been buried underground in support connecting device (2) inside, diagonal bracing reinforcing bar group is including first diagonal bracing reinforcing bar (201), second diagonal bracing reinforcing bar (202) and third diagonal bracing reinforcing bar (203), first diagonal bracing reinforcing bar (201), second diagonal bracing reinforcing bar (202) and third diagonal bracing reinforcing bar (203) all set up to "V" font, first diagonal bracing reinforcing bar (201), second diagonal bracing reinforcing bar (202) and third diagonal bracing reinforcing bar (203) are close to the one end level setting of fixed stay steel reinforcement cage, and link through pricking silk and fixed stay steel reinforcement cage and hit.
9. The B-T-B composite structure for bridge upgrading and reconstruction as claimed in claim 1, wherein: first fixed stand group (101) are the same with the fixed stand group structure of second, six guardrail fixed reinforcement (104) bottom and two sets of bearing diagonal reinforcing bar group welding, four connect and draw muscle (102) to set up respectively between two adjacent fixed connection reinforcing bar rings (105), connect and draw muscle (102) all through pricking silk and guardrail fixed reinforcement (104) fixed connection.
10. The B-T-B composite structure for bridge upgrading and reconstruction as claimed in claim 1, wherein: the guardrail device comprises a guardrail device body and is characterized in that the first fixed stand column group (101), the connecting stretching rib (102), the positioning stand column reinforcing steel bars (103) and the second fixed stand column group form a guardrail reinforcing cage, and the guardrail reinforcing cage is buried in the guardrail device body (1).
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| CN202110198039.9A CN112962475B (en) | 2021-02-22 | 2021-02-22 | Combined structure for upgrading and reconstructing bridge |
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| CN202110198039.9A CN112962475B (en) | 2021-02-22 | 2021-02-22 | Combined structure for upgrading and reconstructing bridge |
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| CN209779469U (en) * | 2019-02-14 | 2019-12-13 | 中设工程咨询(重庆)股份有限公司 | Widening and reforming structure of continuous box girder bridge |
| CN112095495A (en) * | 2020-09-30 | 2020-12-18 | 中交路桥华南工程有限公司 | Bridge underpinning support structure and construction method |
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2021
- 2021-02-22 CN CN202110198039.9A patent/CN112962475B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104278608A (en) * | 2013-07-05 | 2015-01-14 | 杭州华水市政工程有限公司 | Novel highway embankment widened structure and construction method |
| CN208440962U (en) * | 2018-05-02 | 2019-01-29 | 王华飞 | A kind of protecting against shock fracture elevated bridge |
| CN209779469U (en) * | 2019-02-14 | 2019-12-13 | 中设工程咨询(重庆)股份有限公司 | Widening and reforming structure of continuous box girder bridge |
| CN112095495A (en) * | 2020-09-30 | 2020-12-18 | 中交路桥华南工程有限公司 | Bridge underpinning support structure and construction method |
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| CN112962475B (en) | 2022-10-21 |
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