CN112391951B - Bridge deck body, bridge and construction method of bridge - Google Patents
Bridge deck body, bridge and construction method of bridge Download PDFInfo
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- CN112391951B CN112391951B CN202011098377.7A CN202011098377A CN112391951B CN 112391951 B CN112391951 B CN 112391951B CN 202011098377 A CN202011098377 A CN 202011098377A CN 112391951 B CN112391951 B CN 112391951B
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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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/10—Cantilevered erection
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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
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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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
- 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
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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
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
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- 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
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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Abstract
The invention belongs to the technical field of highway engineering, in particular to a bridge deck body, a bridge and a construction method of the bridge; comprises a bridge deck body; the bridge deck body is used for being connected between adjacent bridge piers; a cavity connecting pipe is fixedly inserted in the left and right horizontal directions in the upper panel; a plurality of arc-shaped barrier strips are uniformly arranged on the inner walls of the circumferences of the two ends of the cavity connecting pipe at intervals; the two ends of the cavity connecting pipe are internally and slidably inserted with positioning anchor pipes, and a plurality of arc-shaped positioning blocks are uniformly arranged in the circumferential direction of the outer wall of the positioning anchor pipes; the positioning anchor pipes arranged on the end surfaces corresponding to the two adjacent bridge deck bodies are welded and fixed with each other through the connecting sleeve; the upper surface of the upper panel is fixedly poured with a plurality of grout pouring pipes, and each two grout pouring pipes are symmetrically communicated to the cavity connecting pipe; the arc barrier strips can play a role in sliding limiting on the inserted positioning anchor pipe, so that the stability and firmness of the positioning anchor pipe in the bridge deck body internal installation can be improved, and meanwhile, the stability of connection between adjacent bridge deck bodies is improved.
Description
Technical Field
The invention belongs to the technical field of highway engineering, and particularly relates to a bridge deck body, a bridge and a construction method of the bridge.
Background
The bridge engineering is used as a junction of highway engineering, brings convenience to the travel of people, and plays an important role in national economy. Currently erected bridges are mostly prefabricated bridge beams, such as assembled small box beams and T beams. The prefabricated bridge is a bridge which is prefabricated by a factory, and is connected in the longitudinal and transverse directions and is subjected to bridge deck concrete leveling construction on site after being erected. The structure of the prefabricated bridge mainly comprises a prefabricated girder, a longitudinal and transverse wet joint and a concrete bridge surface leveling layer.
The Chinese patent discloses a bridge deck body, a bridge and a construction method of the bridge, the patent application number is 2017103970840, and the superposed girder comprises a plurality of prefabricated girders and an integral cast-in-situ bridge deck; a plurality of prefabricated main beams are bridged on the adjacent pier; the integral cast-in-situ bridge deck is formed by casting on the prefabricated main girder, the integral cast-in-situ bridge deck is used for paving a bridge surface layer, and the top surface transverse slope of the integral cast-in-situ bridge deck corresponds to the top surface transverse slope of the bridge surface layer.
The patent can solve the problem that the bridge deck pavement thickness of the prefabricated bridge is inconsistent; but current prefabricated bridge floor body is when interconnect, and mostly at the inside connection anchor muscle that inserts of bridge floor body, then will connect the anchor muscle and weld each other, and the junction of one of them bridge floor body receives external impact pulling force or frictional force too big, because the location anchor pipe is laid along the horizontal plane direction interconnect about the bridge floor body, and then leads to interconnect location anchor pipe to follow the inside phenomenon that breaks away from of another bridge floor body, and then influences the quality after the bridge construction.
Disclosure of Invention
In order to make up the deficiency of the prior art, the invention provides a bridge deck body, a bridge and a bridge construction method, which are mainly used for solving the problems that when the existing prefabricated bridge deck bodies are connected with each other, connecting anchor bars are mostly inserted into the bridge deck bodies, then the connecting anchor bars are welded with each other, when the connecting position of one bridge deck body is subjected to external impact tension or overlarge friction, as the positioning anchor pipes are connected with each other along the left and right horizontal plane directions of the bridge deck body, the interconnecting positioning anchor pipes are separated from the inside of the other bridge deck body, and the quality of the bridge after construction is further influenced.
The technical scheme adopted for solving the technical problems is as follows: the bridge deck body comprises a bridge deck body; the bridge deck body is used for being connected between adjacent bridge piers; the bridge deck body comprises an upper panel and a lower main beam; the upper panel and the lower main beam are integrally cast and formed; a through hole is formed in the upper panel in the left-right horizontal direction, and a cavity connecting pipe is fixedly inserted in the through hole; a plurality of arc-shaped barrier strips are uniformly arranged on the inner walls of the circumferences of the two ends of the cavity connecting pipe at intervals; the inner parts of the two ends of the cavity connecting pipe are in sliding connection with positioning anchor pipes, a plurality of arc-shaped positioning blocks are uniformly arranged in the circumferential direction of the outer wall of each positioning anchor pipe, and the arc-shaped positioning blocks are rotationally staggered and aligned to the inner side walls of the arc-shaped barrier strips; the outer end part of the positioning anchor pipe extends out of the cavity connecting pipe; the positioning anchor pipes arranged on the end surfaces corresponding to the two adjacent bridge deck bodies are welded and fixed with each other through the connecting sleeve; the upper surface of the upper panel is fixedly poured with a plurality of grout pouring pipes, and each two grout pouring pipes are symmetrically communicated to the cavity connecting pipe; the outer wall of the bottom end opening of the slurry pouring pipe is contacted with the outer surface of the inner end part of the positioning anchor pipe;
when the prefabricated bridge deck body is required to be prefabricated, a constructor firstly builds a prefabricated template, reserves the size of a through hole according to a construction drawing, inserts a plurality of cavity connecting pipes into the built prefabricated template, fixedly welds a grout pouring pipe onto the cavity connecting pipes, seals the cavity connecting pipes and the grout pouring pipe if the precast concrete is required to be prevented from entering the cavity connecting pipes, and then pours the built prefabricated template to form the bridge deck body; after the bridge deck body is prefabricated and formed, a constructor firstly inserts a plurality of positioning anchor pipes into two ends of a plurality of cavity connecting pipes respectively, when the end parts of the positioning anchor pipes are inserted into the cavity connecting pipes, a plurality of arc-shaped positioning blocks on the outer wall of the positioning anchor pipes can be inserted between adjacent arc-shaped barrier strips in a staggered manner, when the inner end parts of the positioning anchor pipes are inserted into the outer wall of the grouting pipe, the plurality of arc-shaped positioning blocks can be separated from between the adjacent two arc-shaped barrier strips at the moment, then the constructor rotates the positioning anchor pipes, so that the outer end parts of the plurality of arc-shaped positioning blocks are in rotary fit contact with the inner end parts of the plurality of arc-shaped barrier strips, and the plurality of arc-shaped barrier strips in the cavity connecting pipes can play a role of limiting and sliding on the positioning anchor pipes; then the hoisting machine moves and hoists the prefabricated bridge deck body between adjacent bridge piers, constructors can sleeve the connecting sleeve on the positioning anchor pipes on the installed bridge deck body first, then the hoisting machine adjusts the other bridge deck body to the bridge pier with the bridge deck body, the end faces of the two adjacent bridge deck bodies are aligned with each other, a plurality of positioning anchor pipe end faces of the outer end faces of the two adjacent bridge deck bodies are aligned with each other and contacted simultaneously, then the connecting sleeve is sleeved between the two adjacent positioning anchor pipes, and the two adjacent positioning anchor pipes are connected in a hot-melt welding mode; after welding of two adjacent anchor pipes is completed, constructors pour concrete slurry into the plurality of grouting pipes through a pouring machine, at the moment, auxiliary personnel can perform intermittent vibration operation on the mutually connected positioning anchor pipes through a vibrating rod, and then the concrete slurry poured by the grouting pipes can enter the cavity connecting pipes and the positioning anchor pipes, and as the positioning anchor pipes are inserted into the cavity connecting pipes, the concrete slurry can be filled between the two adjacent arc-shaped positioning blocks and the arc-shaped barrier strips, the positioning anchor pipes can be fixed into the cavity connecting pipes after the concrete slurry is solidified, and further the bridge deck bodies are connected with each other to form a bridge; the cooperation of a plurality of arc barrier strips that set up through cavity connecting pipe inside and a plurality of arc locating pieces that the anchor pipe outer wall set up, a plurality of arc barrier strips can play the effect of slip spacing to the anchor pipe of inserting, the inside concrete slurry that solidifies the fashioned of anchor pipe of interconnect, can improve anchor pipe at bridge floor body internally mounted's stability and fastness, improve simultaneously the stability of connection between the adjacent bridge floor body, effectively prevent because the junction of one of them bridge floor body receives external impact pulling force or frictional force too big, because anchor pipe is laid along the left and right horizontal plane direction interconnect of bridge floor body, and then lead to interconnect anchor pipe to follow the phenomenon that another bridge floor body is inside breaks away from, and then influence the phenomenon of stability and fastness of connection between the adjacent bridge floor body.
Preferably, threaded cavities are formed in the two ends of the cavity connecting pipe, and the threaded cavities are positioned at the outer ends of the plurality of arc-shaped barrier strips; the outer wall of the positioning anchor pipe is symmetrically provided with an annular limiting chute, an external thread fixing sleeve is rotationally arranged in the annular limiting chute, and the external thread fixing sleeve is in threaded connection with the thread cavity; during operation, when the anchor pipe inserts in the cavity connecting pipe, and a plurality of arc locating pieces all align the back with a plurality of arc barrier strips, constructor rotates the fixed cover of external screw thread this moment, make the fixed cover of external screw thread can threaded connection to the screw thread intracavity, the fixed cover of external screw thread can rotate in annular spacing spout simultaneously, can drive the turning block again and slide to opposite side cavity wall from one side cavity wall of annular spacing spout, and then the fixed cover of external screw thread can play spacing gliding operation to the anchor pipe, effectively prevent because the bridge floor body produces when removing and rocks, the rotation that leads to the anchor pipe makes a plurality of arc locating pieces break away from with the arc barrier strips and aligns, and then lead to the anchor pipe to break away from the phenomenon that the cavity connecting pipe in, and then influence the anchor pipe and install in the cavity connecting pipe stability and the fastness.
Preferably, the inner ring wall of the annular limiting chute is provided with a plurality of slurry guiding holes which are communicated with the positioning anchor pipe; an elastic water-absorbing expansion layer is arranged in the annular limiting chute; during operation, when filling concrete slurry in the anchor pipe, concrete slurry can enter into annular spacing spout through leading the thick liquid hole, the inside moisture of the elastic water absorption expansion layer that sets up in the annular spacing spout absorbs concrete slurry can produce the inflation, concrete slurry enters into annular spacing spout simultaneously, after concrete slurry hardens and accomplishes, concrete slurry can harden the parcel with the elastic water absorption expansion layer after the inflation, and then make the elastic water absorption expansion layer after the hardening inflation carry out packing seal operation with annular spacing spout, effectively prevent the phenomenon of external screw thread fixed cover production slip skew in annular spacing spout, and then influence the stability of anchor pipe installation in the cavity company pipe.
Preferably, the inner end of the external thread fixing sleeve is fixed with a bonding guide pipe, and the outer wall of the bonding guide pipe is provided with a plurality of thread grooves; the bonding guide pipe and the threaded cavity are arranged in a non-contact manner; during operation, when concrete slurry fills the cavity and is managed in the company, need constructor to pay attention to the arc locating piece of location anchor pipe outer wall and arc to separate the blend stop and align this moment for concrete slurry can enter into between two adjacent arc locating pieces and the arc and separate the blend stop, the outer wall that the concrete can pass through the location anchor pipe can enter into the bonding pipe simultaneously makes the concrete produce the setting hardening at bonding pipe and screw thread recess and screw thread intracavity, and then can play axial spacing pivoted effect to external screw thread fixed cover, prevent that external screw thread fixed cover and cavity from breaking away from threaded connection's phenomenon, and then influence the external screw thread fixed cover to the spacing gliding effect of location anchor pipe.
Preferably, a plurality of through grooves are uniformly formed in the circumferential outer wall of the positioning anchor pipe, and the through grooves are respectively positioned between adjacent arc-shaped positioning blocks; the positioning anchor pipe is fixedly provided with a guide pipe, the outer wall of the guide pipe is provided with a plurality of water-absorbing expansion strips, and the water-absorbing expansion strips are respectively positioned in a plurality of through grooves; the outer ends of the water-absorbing expansion strips are flush with the outer surface of the positioning anchor pipe; during operation, when concrete slurry fills the inner and outer walls of the positioning anchor pipe, the water mixed in the concrete slurry can be in contact with the water-absorbing expansion strips in the through grooves, so that the water-absorbing expansion strips can expand in the through grooves, and can expand to the outer walls of the positioning anchor pipe only after the water-absorbing expansion strips absorb water due to the fact that the water-absorbing expansion strips are fixed through the guide pipes, meanwhile, the guide pipes can guide the concrete slurry, the expansion of the water-absorbing expansion strips can be attached between adjacent arc-shaped baffle strips, and then when concrete is not completely hardened, the water-absorbing expansion strips expand to the outer walls of the positioning anchor pipe, the effect of axial limiting rotation of the positioning anchor pipe can be achieved, the phenomenon that the arc-shaped positioning blocks are separated from the arc-shaped baffle strips due to rotation of the positioning anchor pipe is effectively prevented, and then the fact that the positioning anchor pipe is axially installed in the cavity connecting pipe is affected.
Preferably, an installation cavity is formed in the water-absorbing expansion strip, and a spiral metal strip is fixed in the installation cavity; the inner wall of the mounting cavity is provided with a guide slot hole which is communicated with the inside of the cavity connecting pipe; during operation, when the inside moisture of water swelling strip of water swelling runs into concrete slurry absorbs water and expands, concrete slurry can enter into the installation intracavity through the guide slot hole, concrete slurry can contact with the spiral metal strip of installation intracavity simultaneously, and then after the solidification of concrete slurry and expansion back water swelling strip, the inside spiral metal strip of water swelling strip can further increase the hardness after the expansion of water swelling strip is solidified, and then improve the extrusion hardness each other of water swelling strip and arc barrier strip, further improve the stable installation of location anchor pipe in the cavity company intraductal.
Preferably, the inner end parts of the positioning anchor pipes which are symmetrically arranged are fixed with reinforcing ribs, and the reinforcing ribs which are symmetrically arranged are inserted into the cavity connecting pipes; the steel bars are arranged in a spiral structure; the other end parts of the reinforcing bars of the spiral structure are mutually overlapped and contacted; when the synchronous positioning anchor pipe is in operation, two synchronous positioning anchor pipes are inserted into the cavity connecting pipe, reinforcing ribs of a spiral structure at the inner end part of the positioning anchor pipe are mutually overlapped and contacted, when the positioning anchor pipe is rotated, the reinforcing ribs which are mutually overlapped and contacted can generate a winding effect, at the moment, constructors can rotate the positioning anchor pipe for a plurality of times, and simultaneously, a plurality of arc-shaped positioning blocks are mutually attached and contacted with the end parts of a plurality of arc-shaped barrier strips after the positioning anchor pipe is stopped, so that the winding effect of the reinforcing ribs of the spiral structure which are mutually overlapped and contacted is improved; when filling concrete slurry in the hollow connecting pipe, concrete slurry can be filled in the reinforcing ribs of the spiral structure, and meanwhile constructors vibrate the positioning anchor pipe, so that the reinforcing ribs can shake, the fullness of the concrete slurry in the reinforcing ribs of the spiral structure is further improved, and the phenomenon of hollowing is prevented.
Preferably, the water-absorbing expansion columns are inserted into the reinforcing ribs of the spiral structure, and the water-absorbing expansion columns are movably arranged in a segmented mode; when the concrete slurry is filled into the inside of the steel reinforcement bars, water in the concrete slurry can enter the water-absorbing expansion column to expand the water-absorbing expansion column, the expanded water-absorbing expansion column expands the steel reinforcement bars of the spiral structure, and the hardness of the steel reinforcement bars of the spiral structure can be increased after the water-absorbing expansion column is hardened; the water-absorbing expansion column that segmentation set up can make concrete slurry can enter into in the steel reinforcement strip of helicitic texture for concrete slurry can enough absorb water the expansion column to absorb water and expand, can play the effect of filling to the steel reinforcement strip again simultaneously.
The bridge comprises the bridge deck body and a bridge pier, wherein the bridge deck body comprises a bridge deck body and a bridge pier; the lower main girder of the bridge deck body is arranged on the adjacent bridge piers.
The construction method of the bridge is suitable for the construction of the bridge; the method comprises the following steps:
s1: firstly, constructing a prefabricated template by constructors, reserving the size of a through hole according to a construction drawing, inserting a plurality of cavity connecting pipes into the constructed prefabricated template, fixedly welding a grouting pipe onto the cavity connecting pipes, and then pouring the constructed prefabricated template to form a bridge deck body;
s2: after the bridge deck body is prepared in the step S1, a constructor firstly inserts a plurality of positioning anchor pipes into two ends of a plurality of cavity connecting pipes respectively, when the inner end parts of the inserted positioning anchor pipes contact the outer wall of the grouting pipe, then the constructor rotates the positioning anchor pipes, so that the outer end parts of a plurality of arc-shaped positioning blocks are in rotary fit contact with the inner end parts of a plurality of arc-shaped barrier strips, and the constructor pre-fixes the positioning anchor pipes;
s3: after the installation of the positioning anchor pipe in the step S2 is completed, then a hoisting machine moves and hoistes the prefabricated bridge deck body between adjacent bridge piers, constructors can sleeve the connecting sleeve on the positioning anchor pipe on the installed bridge deck body first, and then the hoisting machine readjust the other bridge deck body to the bridge pier on which the bridge deck body is installed, so that the end faces of the two adjacent bridge deck bodies are mutually aligned;
s4: connecting two adjacent positioning anchor pipes in a hot-melt welding mode; after the welding of the two adjacent anchor pipes is finished, constructors pour concrete slurry into the slurry pouring pipes through the pouring machine, so that the concrete slurry can enter the cavity connecting pipe and the positioning anchor pipes for solidification and molding, the bridge deck body is mounted on the bridge pier, and the bridge can be constructed by repeating the steps.
Preferably, the step S4 further comprises intermittently vibrating the connected positioning anchor pipe by a constructor through a vibrating rod when concrete slurry is poured in the slurry pouring pipe, wherein the vibrating time is when the concrete slurry overflows from the slurry pouring pipe; intermittent vibration operation is carried out on the connected positioning anchor pipes through the vibrating rods, so that the fullness of concrete slurry in the cavity connecting pipes and the positioning anchor pipes is improved, and the concrete slurry is prevented from being in the cavity; the phenomenon of hollowing is produced in the connecting pipe, and then influences the construction quality after the bridge construction is accomplished, influences the stability of connecting between two adjacent bridge floor bodies simultaneously.
The beneficial effects of the invention are as follows:
1. according to the invention, the plurality of arc-shaped barrier strips are arranged in the cavity connecting pipe and are matched with the plurality of arc-shaped positioning blocks arranged on the outer wall of the positioning anchor pipe, the plurality of arc-shaped barrier strips can play a role in sliding and limiting the inserted positioning anchor pipe, and meanwhile, the stability and firmness of the positioning anchor pipe in the bridge deck body can be improved by the concrete slurry which is formed by solidifying the inside of the positioning anchor pipe and is mutually connected, and meanwhile, the stability of connection between adjacent bridge deck bodies is improved, and the stability and firmness of connection between adjacent bridge deck bodies are further improved.
2. According to the invention, the water-absorbing expansion strips are arranged in the positioning anchor pipe, and the water-absorbing expansion strips expand towards the outer wall of the positioning anchor pipe, so that an axial limiting rotation effect is achieved on the positioning anchor pipe, the phenomenon that the arc-shaped positioning blocks are out of alignment with the arc-shaped barrier strips due to rotation of the positioning anchor pipe is effectively prevented, the stable axial installation of the positioning anchor pipe in the cavity connecting pipe is further influenced, and after the concrete slurry is completely hardened, the stability of the installation of the positioning anchor pipe in the cavity connecting pipe can be improved by wrapping the expanded water-absorbing expansion strips by the concrete slurry.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a connection assembly view of adjacent deck bodies of the present invention;
FIG. 2 is a perspective view of the deck body of the present invention;
FIG. 3 is a cross-sectional view of the deck body of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3A in accordance with the present invention;
FIG. 5 is a flow chart of a bridge construction method of the present invention;
in the figure: bridge deck body 1, pier 2, top panel 3, through hole 31, lower girder 4, cavity connecting pipe 5, screw thread chamber 51, arc barrier strip 6, anchor pipe 7, annular spacing spout 71, guide hole 72, through groove 73, arc locating piece 8, connecting sleeve 9, watering thick liquid pipe 10, external screw thread fixed cover 11, turning block 12, elasticity expansion layer 13, bonding pipe 14, screw thread recess 141, honeycomb duct 15, expansion strip 16 that absorbs water, installation cavity 161, spiral metal strip 17, steel reinforcement 18, expansion column 19 that absorbs water.
Detailed Description
A deck body, a bridge, and a construction method of the bridge according to an embodiment of the present invention will be described below with reference to fig. 1 to 5.
As shown in fig. 1 to 4, a deck body according to the present invention includes a deck body 1; the bridge deck body 1 is used for being connected between adjacent bridge piers 2; the bridge deck body 1 comprises an upper panel 3 and a lower main beam 4; the upper panel 3 and the lower main beam 4 are integrally cast and formed; a through hole 31 is formed in the upper panel 3 in the left-right horizontal direction, and a cavity connecting pipe 5 is fixedly inserted into the through hole 31; a plurality of arc-shaped barrier strips 6 are uniformly arranged on the inner walls of the circumferences of the two ends of the cavity connecting pipe 5 at intervals; the two ends of the cavity connecting pipe 5 are internally and slidably inserted with positioning anchor pipes 7, a plurality of arc-shaped positioning blocks 8 are uniformly arranged in the circumferential direction of the outer wall of the positioning anchor pipes 7, and the arc-shaped positioning blocks 8 are rotationally staggered and aligned to the inner side walls of the arc-shaped barrier strips 6; the outer end part of the positioning anchor tube 7 extends out of the cavity connecting tube 5; the positioning anchor pipes 7 arranged on the corresponding end surfaces of the two adjacent bridge deck bodies 1 are welded and fixed with each other through the connecting sleeve 9; a plurality of grout pipes 10 are fixedly poured on the upper surface of the upper panel 3, and each two grout pipes 10 are symmetrically communicated to the cavity connecting pipe 5; the outer wall of the bottom end opening of the slurry pouring pipe 10 is contacted with the outer surface of the inner end part of the positioning anchor pipe 7;
when the prefabricated bridge deck body 1 is required to be prefabricated, a constructor firstly builds a prefabricated template, reserves the size of a through hole 31 according to a construction drawing, inserts a plurality of cavity connecting pipes 5 into the built prefabricated template, then fixedly welds a grout pouring pipe 10 onto the cavity connecting pipes 5, seals the cavity connecting pipes 5 and the grout pouring pipe 10 if the precast concrete is required to be prevented from entering the cavity connecting pipes 5, and then pours the built prefabricated template to form the bridge deck body 1; after the bridge deck body 1 is prefabricated and formed, a constructor firstly inserts a plurality of positioning anchor pipes 7 into two ends of a plurality of cavity connecting pipes 5 respectively, when the end parts of the positioning anchor pipes 7 are inserted into the cavity connecting pipes 5, a plurality of arc-shaped positioning blocks 8 on the outer wall of the positioning anchor pipes 7 can be inserted between adjacent arc-shaped barrier strips 6 in a staggered manner, when the inner end parts of the positioning anchor pipes 7 are inserted into the outer wall of a grouting pipe 10, the plurality of arc-shaped positioning blocks 8 can be separated from between the adjacent two arc-shaped barrier strips 6 at the moment, then the constructor rotates the positioning anchor pipes 7, so that the outer end parts of the plurality of arc-shaped positioning blocks 8 are in rotary fit contact with the inner end parts of the plurality of arc-shaped barrier strips 6, and further the plurality of arc-shaped barrier strips 6 in the cavity connecting pipes 5 can play a role in limiting and sliding on the positioning anchor pipes 7; then the hoisting machine moves and hoists the prefabricated bridge deck body 1 between the adjacent bridge piers 2, constructors can sleeve the connecting sleeve 9 on the positioning anchor pipes 7 on the installed bridge deck body 1 firstly, then when the hoisting machine adjusts the other bridge deck body 1 to the bridge pier 2 with the bridge deck body 1, the end faces of the adjacent two bridge deck bodies 1 are aligned with each other, the end faces of the positioning anchor pipes 7 on the outer end faces of the adjacent two bridge deck bodies 1 are aligned with each other and contacted simultaneously, then the connecting sleeve 9 is sleeved between the adjacent two positioning anchor pipes 7, and the adjacent two positioning anchor pipes 7 are connected in a hot-melt welding mode; after welding of the two adjacent anchor pipes is completed, constructors pour concrete slurry into the plurality of grouting pipes 10 through a pouring machine, at the moment, auxiliary personnel can perform intermittent vibration operation on the mutually connected positioning anchor pipes 7 through a vibrating rod, and then the concrete slurry poured by the grouting pipes 10 can enter the cavity connecting pipe 5 and the positioning anchor pipes 7, and as the positioning anchor pipes 7 are inserted into the cavity connecting pipe 5, the concrete slurry can be filled between the two adjacent arc-shaped positioning blocks 8 and the arc-shaped barrier strips 6, and after the concrete slurry is solidified, the positioning anchor pipes 7 can be fixed into the cavity connecting pipe 5, so that the bridge deck bodies 1 can be connected with each other to form a bridge; the cooperation of a plurality of arc barrier strips 6 that set up through cavity connecting pipe 5 inside and a plurality of arc locating pieces 8 that the locating anchor pipe 7 outer wall set up, a plurality of arc barrier strips 6 can play the effect of slip spacing to the locating anchor pipe 7 of inserting, the inside concrete slurry of solidification shaping of interconnect's locating anchor pipe 7 simultaneously can improve the stability and the fastness of locating anchor pipe 7 at bridge floor body 1 internally mounted, improve the stability of connecting between the adjacent bridge floor body 1 simultaneously, effectively prevent because the junction of one of them bridge floor body 1 receives external impact pulling force or frictional force too big, because locating anchor pipe 7 is laid along the horizontal plane direction interconnect about bridge floor body 1, and then lead to interconnect locating anchor pipe 7 to follow the phenomenon that another bridge floor body 1 is inside breaks away from, and then influence the phenomenon of connecting between the adjacent bridge floor body 1 stability and fastness.
As an embodiment of the present invention, the two ends of the cavity connecting tube 5 are internally provided with threaded cavities 51, and the threaded cavities 51 are located at the outer ends of the plurality of arc-shaped barrier strips 6; the outer wall of the positioning anchor pipe 7 is symmetrically provided with an annular limiting chute 71, the rotating block 12 in the annular limiting chute 71 is rotatably provided with an external thread fixing sleeve 11, and the external thread fixing sleeve 11 is in threaded connection with the thread cavity 51; during operation, when the anchor positioning pipe 7 is inserted into the cavity connecting pipe 5, and after a plurality of arc locating pieces 8 are aligned with a plurality of arc barrier strips 6, constructors rotate the external thread fixing sleeve 11 at this moment, so that the external thread fixing sleeve 11 can be connected into the thread cavity 51 in a threaded manner, meanwhile, the external thread fixing sleeve 11 can rotate in the annular limiting sliding groove 71, the rotating block 12 can be driven to slide to the cavity wall of the other side from the cavity wall of one side of the annular limiting sliding groove 71, the external thread fixing sleeve 11 can perform limit sliding operation on the anchor positioning pipe 7, shaking is effectively prevented due to the fact that the bridge deck body 1 moves, the rotation of the anchor positioning pipe 7 causes the arc locating pieces 8 to be separated from the arc barrier strips 6, and then the anchor positioning pipe 7 is separated from the cavity connecting pipe 5, and therefore the stability and the firmness of installation of the anchor positioning pipe 7 in the cavity connecting pipe 5 are affected.
As an embodiment of the present invention, the inner wall of the annular limiting chute 71 is provided with a plurality of slurry guiding holes 72, and the slurry guiding holes 72 are communicated with the positioning anchor tube 7; an elastic water-absorbing expansion layer 13 is arranged in the annular limiting chute 71; when the during operation fills concrete slurry in the anchor pipe 7, concrete slurry can enter into annular spacing spout 71 through leading thick liquid hole 72, the inside moisture of the elastic water absorption expansion layer 13 absorption concrete slurry that sets up in the annular spacing spout 71 can produce the inflation, simultaneously concrete slurry enters into annular spacing spout 71, after concrete slurry hardens, concrete slurry can harden the parcel with the elastic water absorption expansion layer 13 after the inflation, and then make the elastic water absorption expansion layer 13 after the hardening inflation carry out the packing seal operation with annular spacing spout 71, effectively prevent the phenomenon that external screw thread fixed cover 11 produced the slip skew in annular spacing spout 71, and then influence the stability of anchor pipe 7 installation in cavity connecting pipe 5.
As an embodiment of the present invention, the inner end of the external thread fixing sleeve 11 is fixed with a bonding conduit 14, and the outer wall of the bonding conduit 14 is provided with a plurality of thread grooves 141; the bonding conduit 14 and the threaded cavity 51 are arranged in a non-contact manner; during operation, when concrete slurry is filled into the cavity connecting pipe 5, constructors need to pay attention to the fact that the arc-shaped positioning blocks 8 and the arc-shaped barrier strips 6 on the outer wall of the positioning anchor pipe 7 are aligned, so that concrete slurry can enter between the adjacent two arc-shaped positioning blocks 8 and the arc-shaped barrier strips 6, meanwhile, concrete can enter the outer wall of the bonding guide pipe 14 through the outer wall of the positioning anchor pipe 7, the concrete can generate condensation hardening in the bonding guide pipe 14, the thread groove 141 and the thread cavity 51, and then the effect of axial limiting rotation can be achieved on the external thread fixing sleeve 11, the phenomenon that the external thread fixing sleeve 11 is separated from the cavity connecting pipe 5 is prevented, and the effect of limiting sliding of the external thread fixing sleeve 11 on the positioning anchor pipe 7 is further affected.
As an embodiment of the present invention, the circumferential outer wall of the anchor tube 7 is uniformly provided with a plurality of through grooves 73, and the plurality of through grooves 73 are respectively located between adjacent arc-shaped positioning blocks 8; a guide pipe 15 is fixed on the positioning anchor pipe 7, a plurality of water-absorbing expansion strips 16 are arranged on the outer wall of the guide pipe 15, and the water-absorbing expansion strips 16 are respectively positioned in the through grooves 73; the outer ends of the water-absorbing expansion strips 16 are flush with the outer surface of the positioning anchor tube 7; during operation, when concrete slurry fills the inner and outer walls of the positioning anchor pipe 7, the water mixed in the concrete slurry can be in contact with the water-absorbing expansion strips 16 in the through grooves 73, so that the water-absorbing expansion strips 16 can expand in the through grooves 73, the water-absorbing expansion strips 16 are fixed through the guide pipes 15, and then the water-absorbing expansion strips 16 can only expand towards the outer walls of the positioning anchor pipe 7 after absorbing water, meanwhile, the guide pipes 15 can guide the concrete slurry, the expansion of the water-absorbing expansion strips 16 can be attached between the adjacent arc-shaped barrier strips 6, and then when the concrete is not completely hardened, the water-absorbing expansion strips 16 expand towards the outer walls of the positioning anchor pipe 7, an effect of axial limiting rotation of the positioning anchor pipe 7 can be achieved, the phenomenon that the arc-shaped positioning blocks 8 are out of alignment with the arc-shaped barrier strips 6 due to rotation of the positioning anchor pipe 7 is effectively prevented, and further the stable installation of the positioning anchor pipe 7 in the cavity connecting pipe 5 is affected, and after the inner axial concrete slurry is completely hardened, the wrapping of the water-absorbing expansion strips 16 can improve the installation stability of the positioning anchor pipe 7 in the cavity connecting pipe 5.
As an embodiment of the present invention, the water-absorbing expansion strip 16 is internally provided with a mounting cavity 161, and a spiral metal strip 17 is fixed in the mounting cavity 161; a guide groove hole is formed in the inner wall of the mounting cavity 161 and is communicated with the inside of the cavity connecting pipe 5; when the water absorbing expansion strip 16 encounters the water absorbing expansion of the inside of concrete slurry, the concrete slurry enters the installation cavity 161 through the guide slot holes, meanwhile, the concrete slurry is contacted with the spiral metal strip 17 in the installation cavity 161, and then after the concrete slurry and the water absorbing expansion strip 16 are hardened after expansion, the spiral metal strip 17 in the inside of the water absorbing expansion strip 16 can further increase the hardness of the water absorbing expansion strip 16 after expansion hardening, so that the extrusion hardness of the water absorbing expansion strip 16 and the arc-shaped barrier strip 6 is improved, and the stable installation of the positioning anchor pipe 7 in the cavity connecting pipe 5 is further improved.
As one embodiment of the present invention, the symmetrically arranged inner ends of the anchor pipes 7 are fixed with reinforcing bars 18, and the symmetrically arranged reinforcing bars 18 are inserted into the cavity connecting pipes 5; the reinforcing bars 18 are arranged in a helical configuration; the other ends of the reinforcement bars 18 of the helical structure are in overlapping contact with each other; when the synchronous positioning anchor pipe 7 is in operation, two synchronous positioning anchor pipes 7 are inserted into the cavity connecting pipe 5, reinforcing ribs 18 of a spiral structure at the inner ends of the positioning anchor pipes 7 are mutually overlapped and contacted, when the positioning anchor pipes 7 are rotated, the reinforcing ribs 18 which are mutually overlapped and contacted can generate a winding effect, at the moment, constructors can rotate the positioning anchor pipes 7 for a plurality of times, and simultaneously, after the positioning anchor pipes 7 are stopped, a plurality of arc-shaped positioning blocks 8 are mutually attached and contacted with the ends of a plurality of arc-shaped barrier strips 6, so that the winding effect of the reinforcing ribs 18 of the spiral structure which are mutually overlapped and contacted is improved; when the hollow connecting pipe 5 is filled with concrete slurry, the concrete slurry is filled into the reinforcing ribs 18 of the spiral structure, and meanwhile, constructors vibrate the positioning anchor pipe 7 to shake the reinforcing ribs 18, so that the fullness of the concrete slurry in the reinforcing ribs 18 of the spiral structure is increased, and the phenomenon of hollowing is prevented.
As an implementation mode of the invention, the water-absorbing expansion column 19 is inserted into the reinforcing steel bar 18 of the spiral structure, and the water-absorbing expansion column 19 is movably arranged in a segmented manner; when the concrete slurry is filled into the reinforcing ribs 18 during operation, water in the concrete slurry enters the water-absorbing expansion column 19, so that the water-absorbing expansion column 19 expands, the expanded water-absorbing expansion column 19 expands the reinforcing ribs 18 with the spiral structure, and the hardness of the reinforcing ribs 18 with the spiral structure is increased after the water-absorbing expansion column 19 is hardened; the water-absorbing expansion columns 19 arranged in a segmented mode can enable concrete slurry to enter the reinforcing steel bars 18 of the spiral structure, so that the concrete slurry can absorb water and expand the water-absorbing expansion columns 19, and meanwhile the reinforcing steel bars 18 can be filled.
The bridge comprises the bridge deck body and a bridge pier 2; the lower main girder 4 of the bridge deck body is arranged on the adjacent bridge pier 2.
As shown in fig. 5, the construction method of the bridge according to the present invention is applicable to the construction of the bridge; the method comprises the following steps:
s1: firstly, constructing a prefabricated template by constructors, reserving the size of a through hole 31 according to a construction drawing, inserting a plurality of cavity connecting pipes 5 into the constructed prefabricated template, fixedly welding a grout pouring pipe 10 onto the cavity connecting pipes 5, and pouring the constructed prefabricated template to form a bridge deck body 1;
s2: after the preparation of the bridge deck body 1 in the step S2 is completed, a constructor firstly inserts a plurality of positioning anchor pipes 7 into two ends of the cavity connecting pipes 5 respectively, when the inner end parts inserted into the positioning anchor pipes 7 contact the outer wall of the grouting pipe 10, then the constructor rotates the positioning anchor pipes 7, so that the outer end parts of the arc-shaped positioning blocks 8 are in rotary fit contact with the inner end parts of the arc-shaped barrier strips 6, and the constructor pre-fixes the positioning anchor pipes 7;
s3: after the installation of the positioning anchor pipe 7 in the step S3 is completed, then a hoisting machine moves and hoists the prefabricated bridge deck body 1 between the adjacent bridge piers 2, constructors can firstly sleeve the connecting sleeve 9 on the positioning anchor pipe 7 on the installed bridge deck body 1, and then the hoisting machine readjust the other bridge deck body 1 to the bridge pier 2 on which the bridge deck body 1 is installed, so that the end surfaces of the two adjacent bridge deck bodies 1 are mutually aligned;
s4: connecting two adjacent positioning anchor pipes 7 in a hot-melt welding mode; after the welding of the two adjacent anchor pipes is completed, constructors pour concrete slurry into the slurry pouring pipes 10 through the pouring machine, so that the concrete slurry can enter the cavity connecting pipe 5 and the positioning anchor pipe 7 for solidification and molding, and then the bridge deck body 1 is installed on the bridge pier 2, and the bridge can be constructed by repeating the steps.
As an implementation mode of the invention, the step S4 further comprises intermittently vibrating the connected anchor pipe 7 by a constructor through a vibrating rod when concrete slurry is poured in the slurry pouring pipe 10, wherein the vibrating time is when the concrete slurry overflows from the slurry pouring pipe 10; intermittent vibration operation is carried out on the connected positioning anchor pipe 7 through a vibration rod, so that the fullness of concrete slurry in the cavity connecting pipe 5 and the positioning anchor pipe 7 is improved, and the concrete slurry is prevented from being in the cavity; the phenomenon of hollowing is generated in the connecting pipe, so that the construction quality after the bridge construction is finished is influenced, and meanwhile, the stability of connection between two adjacent bridge deck bodies 1 is influenced.
The specific working procedure is as follows:
when the prefabricated bridge deck body 1 is required to be prefabricated, a constructor firstly builds a prefabricated template, reserves the size of a through hole 31 according to a construction drawing, inserts a plurality of cavity connecting pipes 5 into the built prefabricated template, then fixedly welds a grout pouring pipe 10 onto the cavity connecting pipes 5, seals the cavity connecting pipes 5 and the grout pouring pipe 10 if the precast concrete is required to be prevented from entering the cavity connecting pipes 5, and then pours the built prefabricated template to form the bridge deck body 1; after the bridge deck body 1 is prefabricated and formed, a constructor firstly inserts a plurality of positioning anchor pipes 7 into two ends of a plurality of cavity connecting pipes 5 respectively, when the end parts of the positioning anchor pipes 7 are inserted into the cavity connecting pipes 5, a plurality of arc-shaped positioning blocks 8 on the outer wall of the positioning anchor pipes 7 can be inserted between adjacent arc-shaped barrier strips 6 in a staggered manner, when the inner end parts of the positioning anchor pipes 7 are inserted into the outer wall of a grouting pipe 10, the plurality of arc-shaped positioning blocks 8 can be separated from between the adjacent two arc-shaped barrier strips 6 at the moment, then the constructor rotates the positioning anchor pipes 7, so that the outer end parts of the plurality of arc-shaped positioning blocks 8 are in rotary fit contact with the inner end parts of the plurality of arc-shaped barrier strips 6, and further the plurality of arc-shaped barrier strips 6 in the cavity connecting pipes 5 can play a role in limiting and sliding on the positioning anchor pipes 7; then the hoisting machine moves and hoists the prefabricated bridge deck body 1 between the adjacent bridge piers 2, constructors can sleeve the connecting sleeve 9 on the positioning anchor pipes 7 on the installed bridge deck body 1 firstly, then when the hoisting machine adjusts the other bridge deck body 1 to the bridge pier 2 with the bridge deck body 1, the end faces of the adjacent two bridge deck bodies 1 are aligned with each other, the end faces of the positioning anchor pipes 7 on the outer end faces of the adjacent two bridge deck bodies 1 are aligned with each other and contacted simultaneously, then the connecting sleeve 9 is sleeved between the adjacent two positioning anchor pipes 7, and the adjacent two positioning anchor pipes 7 are connected in a hot-melt welding mode; after two adjacent anchor pipes are welded, constructors pour concrete slurry into the plurality of grouting pipes 10 through the casting machine, at the moment, auxiliary personnel can perform intermittent vibration operation on the mutually connected positioning anchor pipes 7 through the vibrating rods, and then the concrete slurry poured by the grouting pipes 10 can enter the cavity connecting pipe 5 and the positioning anchor pipes 7, as the positioning anchor pipes 7 are inserted into the cavity connecting pipe 5, and then the concrete slurry can be filled between the two adjacent arc-shaped positioning blocks 8 and the arc-shaped barrier strips 6, the positioning anchor pipes 7 can be fixed into the cavity connecting pipe 5 after the concrete slurry is solidified, and then the bridge deck bodies 1 are connected with each other to form a bridge.
In the description of the present invention, it should be understood that the terms "center", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the scope of the present invention.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (11)
1. A deck body comprising a deck body (1); the bridge deck body (1) is used for being connected between adjacent bridge piers (2); the method is characterized in that: the bridge deck body (1) comprises an upper panel (3) and a lower main girder (4); the upper panel (3) and the lower main beam (4) are integrally cast and formed; a through hole (31) is formed in the upper panel (3) in the left-right horizontal direction, and a cavity connecting pipe (5) is fixedly inserted in the through hole (31); a plurality of arc-shaped barrier strips (6) are uniformly arranged on the inner walls of the circumferences of the two ends of the cavity connecting pipe (5) at intervals; the two ends of the cavity connecting pipe (5) are internally and slidably inserted with positioning anchor pipes (7), a plurality of arc-shaped positioning blocks (8) are uniformly arranged in the circumferential direction of the outer wall of each positioning anchor pipe (7), and the arc-shaped positioning blocks (8) are rotationally and misplaced and aligned to the inner side walls of the arc-shaped barrier strips (6); the outer end part of the positioning anchor pipe (7) extends out of the cavity connecting pipe (5); positioning anchor pipes (7) which are arranged on the end surfaces corresponding to the two adjacent bridge deck bodies (1) are welded and fixed with each other through connecting sleeves (9); a plurality of grouting pipes (10) are fixedly poured on the upper surface of the upper panel (3), and each two grouting pipes (10) are symmetrically communicated to the cavity connecting pipe (5); the outer wall of the bottom end opening of the grouting pipe (10) is contacted with the outer surface of the inner end part of the positioning anchor pipe (7).
2. A deck body as claimed in claim 1, wherein: threaded cavities (51) are formed in the two ends of the cavity connecting pipe (5), and the threaded cavities (51) are positioned at the outer ends of the arc-shaped barrier strips (6); the outer wall of the positioning anchor pipe (7) is symmetrically provided with an annular limiting chute (71), an external thread fixing sleeve (11) is rotatably arranged in the annular limiting chute (71) through a rotating block (12), and the external thread fixing sleeve (11) is in threaded connection with the threaded cavity (51).
3. A deck body as claimed in claim 2, wherein: the inner ring wall of the annular limiting chute (71) is provided with a plurality of slurry guiding holes (72), and the slurry guiding holes (72) are communicated with the positioning anchor pipe (7); an elastic water-absorbing expansion layer (13) is arranged in the annular limiting chute (71).
4. A deck body according to claim 3, characterized in that: an adhesive guide pipe (14) is fixed at the inner end of the external thread fixing sleeve (11), and a plurality of thread grooves (141) are formed in the outer wall of the adhesive guide pipe (14); the bonding conduit (14) and the threaded cavity (51) are arranged in a non-contact mode.
5. A deck body as claimed in claim 4, wherein: a plurality of through grooves (73) are uniformly formed in the circumferential outer wall of the positioning anchor pipe (7), and the through grooves (73) are respectively positioned between adjacent arc-shaped positioning blocks (8); a guide pipe (15) is fixed on the positioning anchor pipe (7), a plurality of water-absorbing expansion strips (16) are arranged on the outer wall of the guide pipe (15), and the water-absorbing expansion strips (16) are respectively positioned in a plurality of through grooves (73); the outer ends of the water-absorbing expansion strips (16) are flush with the outer surface of the positioning anchor tube (7).
6. A deck body as claimed in claim 5, wherein: an installation cavity (161) is formed in the water-absorbing expansion strip (16), and a spiral metal strip (17) is fixed in the installation cavity (161); the inner wall of the mounting cavity (161) is provided with a guide groove hole which is communicated with the inside of the cavity connecting pipe (5).
7. A deck body as claimed in claim 6, wherein: the inner ends of the symmetrically arranged anchor positioning pipes (7) are respectively fixed with a reinforcing rib (18), and the symmetrically arranged reinforcing ribs (18) are inserted into the cavity connecting pipe (5); the reinforcing bars (18) are arranged in a helical configuration; the other ends of the reinforcement bars (18) of the helical structure are in overlapping contact with each other.
8. A deck body as claimed in claim 7, wherein: the inside of the reinforcing ribs (18) of the spiral structure is inserted with water-absorbing expansion columns (19), and the water-absorbing expansion columns (19) are movably arranged in a segmented mode.
9. A bridge, characterized in that: a deck body comprising a deck body according to any one of claims 1 to 8, further comprising a pier (2); the lower main girder (4) of the bridge deck body is arranged on the adjacent bridge piers (2).
10. A construction method of a bridge is characterized in that: the method is suitable for the construction of the bridge as claimed in claim 9; the method comprises the following steps:
s1: firstly, constructing a prefabricated template by constructors, reserving the size of a through hole (31) according to a construction drawing, inserting a plurality of cavity connecting pipes (5) into the constructed prefabricated template, fixedly welding a grout pouring pipe (10) onto the cavity connecting pipes (5), and pouring the constructed prefabricated template to form a bridge deck body (1);
s2: after the preparation of the bridge deck body (1) in the step S2 is completed, a constructor firstly inserts a plurality of positioning anchor pipes (7) into two ends of a plurality of cavity connecting pipes (5) respectively, when the inner end parts of the positioning anchor pipes (7) are inserted into the outer walls of the grouting pipes (10), the constructor rotates the positioning anchor pipes (7) so that the outer end parts of a plurality of arc-shaped positioning blocks (8) are in rotary fit contact with the inner end parts of a plurality of arc-shaped barrier strips (6), and the constructor pre-fixes the positioning anchor pipes (7);
s3: after the step S3 of installing the positioning anchor pipe (7), then the hoisting machine moves and hoists the prefabricated bridge deck body (1) between the adjacent bridge piers (2), constructors can sleeve the connecting sleeve (9) on the positioning anchor pipe (7) on the installed bridge deck body (1) first, and then the hoisting machine readjust the other bridge deck body (1) to the bridge pier (2) provided with the bridge deck body (1), so that the end faces of the two adjacent bridge deck bodies (1) are mutually aligned;
s4: connecting two adjacent positioning anchor pipes (7) in a hot-melt welding mode; after the welding of the two adjacent anchor pipes is finished, constructors pour concrete slurry into the slurry pouring pipes (10) through the pouring machine, so that the concrete slurry can enter the cavity connecting pipe (5) and the positioning anchor pipe (7) for solidification and molding, and then the bridge deck body (1) is installed on the bridge pier (2), and the bridge can be constructed by repeating the steps.
11. The method for constructing a bridge according to claim 10, wherein: and S4, when concrete slurry is poured in the slurry pouring pipe (10), the constructor intermittently vibrates the connected positioning anchor pipe (7) through the vibrating rod, wherein the vibrating time is that the concrete slurry overflows from the slurry pouring pipe (10) to stop.
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| CN202011098377.7A CN112391951B (en) | 2020-10-14 | 2020-10-14 | Bridge deck body, bridge and construction method of bridge |
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| CN113430931A (en) * | 2021-07-30 | 2021-09-24 | 贵州路桥集团有限公司 | Steel-concrete composite beam panel structure |
| CN113832849B (en) * | 2021-08-31 | 2023-08-01 | 中国公路工程咨询集团有限公司 | Bridge structure of continuous rigid frame steel truss combination |
| CN113718660B (en) * | 2021-09-27 | 2023-01-31 | 皖西学院 | Large-span quick-connection assembly type prefabricated part and construction method thereof |
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| JP3635004B2 (en) * | 2000-06-07 | 2005-03-30 | 機動建設工業株式会社 | Bridge cantilever construction method |
| KR20090105503A (en) * | 2008-04-03 | 2009-10-07 | (주)한국해외기술공사 | Joint box girder bridge use the wire to pull for the vertical and horizontal method besides |
| CN105926440A (en) * | 2016-05-09 | 2016-09-07 | 湖南城市学院 | Steel-concrete combined continuous beam bridge deck as well as manufacturing method and application thereof |
| CN106958186B (en) * | 2017-05-31 | 2019-10-15 | 浙江省交通规划设计研究院 | The construction method of bridge floor body, bridge and bridge |
| CN108316122B (en) * | 2018-03-28 | 2024-04-12 | 北京市市政工程设计研究总院有限公司 | Bridge deck continuous structure of simply-supported I-shaped concrete composite beam and construction method |
| CN109610314B (en) * | 2018-12-26 | 2020-11-06 | 北京工业大学 | Prefabricated bridge deck wet joint structure and assembling method |
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Effective date of registration: 20230602 Address after: No. 8, Floor 1-2, Changjiang Mingyuan, No. 7, Yanshan Road, Nangang Cluster, Harbin Economic Development Zone, 150,000 Heilongjiang Applicant after: Heilongjiang Dingjie Road and Bridge Engineering Co.,Ltd. Address before: Taizhou college, Nanjing Normal University, 518 Dongfeng South Road, Hailing District, Taizhou City, Jiangsu Province, 225300 Applicant before: Zhou Jun |
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