CN113089487A - Construction method of bridge pier - Google Patents
Construction method of bridge pier Download PDFInfo
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- CN113089487A CN113089487A CN202110323842.0A CN202110323842A CN113089487A CN 113089487 A CN113089487 A CN 113089487A CN 202110323842 A CN202110323842 A CN 202110323842A CN 113089487 A CN113089487 A CN 113089487A
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- abutment
- pile foundation
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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
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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
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
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Abstract
The application relates to a construction method of a bridge pier, and belongs to the technical field of bridge construction. The main scheme includes that a pile foundation steel bar frame is placed above a base, a pile foundation formwork is spliced outside the pile foundation steel bar frame, and the lower end of the pile foundation formwork is connected to the base; the pile foundation template is sleeved with a plurality of annular hoops, and the annular hoops are arranged at intervals along the height direction of the pile foundation template; arranging a bridge abutment steel frame above the pile foundation steel frame, and arranging a bridge abutment template outside the bridge abutment steel frame; a clamping piece is arranged outside the abutment template, and the firmness of the abutment template is improved through the clamping piece; arranging a supporting piece below the abutment template, abutting a butting block of the supporting piece with the pile foundation template, and abutting a bearing block of the supporting piece with the abutment template; pouring concrete on the pile foundation formwork and the abutment formwork; after the concrete is condensed, the supporting piece, the clamping piece, the annular hoop, the abutment template and the pile foundation template are removed in sequence. Form through pouring pile foundation and abutment an organic whole for the holistic structural strength of pier is higher.
Description
Technical Field
The application relates to the technical field of bridge construction, in particular to a construction method of a bridge pier.
Background
At present, bridge construction is the major in highway, high-speed railway and urban overhead construction. In the related art, the bridge construction generally adopts prefabricated installation construction.
The bridge includes decking and pier, and the pier includes the pile foundation again and establishes the abutment in the pile foundation top, and prefabricated erection construction is just separately the preparation with decking and pier, decomposes into a plurality of cell cube with the decking, and cell cube, pile foundation and abutment all make at mill or prefabricated field, then all transport cell cube, pile foundation and abutment to job site and connect during the construction.
In view of the above-mentioned related technologies, the inventor believes that a bridge pier is an important part for supporting a bridge and bearing force, and the prefabrication and installation construction method causes poor connection strength between a pile foundation and a bridge abutment, thereby easily causing low strength of the whole structure of the bridge pier.
Disclosure of Invention
In order to enable the integral structure strength of the bridge pier to be higher, the application provides a construction method of the bridge pier.
The application provides a construction method of a bridge pier, which adopts the following technical scheme:
a construction method of a bridge pier comprises the following steps:
step S1, marking out a construction area according to a design map, and digging two pits in the construction area;
step S2, inserting a reinforcement cage into each pit, wherein the reinforcement cage is 5m higher than the ground;
step S3, pouring a layer of base with the height of 50cm in the construction area; filling concrete into the pot hole, and pouring the reinforcement cage and the base together;
s4, placing a pile foundation steel bar frame above the base, splicing a pile foundation template outside the pile foundation steel bar frame, and connecting the lower end of the pile foundation template to the base;
step S5, arranging bridge abutment reinforcing frames above the pile foundation steel frame frames, and arranging bridge abutment templates outside the bridge abutment frames;
step S6, arranging a support piece below the abutment template, enabling a butting block of the support piece to be butted with the pile foundation template, and enabling a bearing block of the support piece to be butted with the abutment template;
step S7, concrete is poured on the pile foundation formwork and the abutment formwork;
and step S8, removing the supporting piece, the abutment template and the pile foundation template in sequence after the concrete is solidified.
By adopting the technical scheme, the integral structure strength of the pier is higher by integrally pouring the pile foundation and the abutment; and when pouring, through support piece's effect, make pile foundation template and abutment template overall stability stronger.
Optionally, step S4 further includes the following steps: a plurality of annular hoops are established to pile foundation template overcoat, and a plurality of annular hoops set up along pile foundation template's direction of height interval.
By adopting the technical scheme, the annular hoop is sleeved outside the pile foundation template, so that the pile foundation template is integrally more stable.
Optionally, step S4 further includes the following steps: and the four tightening rods are respectively abutted against the four side faces of the pile foundation template, the tightening rods are moved to enable the through holes of the two adjacent tightening rods to be corresponding and mutually perpendicular, and then bolts sequentially penetrate through the through holes of the two adjacent tightening rods.
Through adopting above-mentioned technical scheme, two adjacent cramping bars pass through bolted connection, make cramping bar support tightly outside the pile foundation template.
Optionally, step S5 further includes the following steps: the pile foundation formwork is connected with the abutment formwork through a rotating connecting piece.
By adopting the technical scheme, as the side wall of the abutment template is inclined and the side wall of the pile foundation template is vertical, if the diameter is larger than the diameter, the pile foundation template is connected with the abutment template, the connection between the pile foundation template and the abutment template is easy to be unstable, and the pile foundation template is connected with the abutment template by rotating the connecting piece, so that the connection between the pile foundation template and the abutment is stable; and the abutment template is rotationally connected with the pile foundation template, so that the inclination angle of the side wall of the abutment template can be adjusted according to actual conditions.
Optionally, step S5 further includes the following steps: the pile foundation connecting plate is embedded into a side plate of the pile foundation formwork, and the abutment connecting plate is embedded into a side plate of the abutment formwork.
Through adopting above-mentioned technical scheme, the pile foundation connecting plate is located the pile foundation template, and the abutment connecting plate is located the abutment template, makes pile foundation template and abutment template connect.
Optionally, step S5 further includes the following steps: attaching the upper fixing plate to the abutment template, and connecting the connecting screw with the abutment connecting plate after penetrating through the upper fixing plate; fitting the lower fixing plate with the pile foundation template, and connecting the connecting screw with the pile foundation connecting plate by penetrating the lower fixing plate; the upper end of the fixed rod is connected with the upper fixing plate through screws, and the lower end of the fixed rod is connected with the lower fixing plate through screws.
By adopting the technical scheme, the pile foundation connecting plate is more firmly connected with the pile foundation template through the connecting screw, and the abutment connecting plate is more firmly connected with the abutment template through the connecting screw; and be provided with the dead lever between upper fixed plate and the bottom plate, through the supporting role of dead lever, make the abutment template be difficult for toppling over from the pile foundation template, and then make abutment template and pile foundation template be connected more stably.
Optionally, step S5 further includes the following steps: attaching the abutment sealing plate to the inner side wall of the abutment template, wherein the abutment sealing plate is flush with the side surface of the abutment template close to the pile foundation template, and screwing the connecting screw of the upper fixing plate into the connecting groove of the abutment sealing plate; with the inboard wall laminating of pile foundation closing plate and pile foundation template, the side looks parallel and level that pile foundation closing plate and pile foundation template are close to the abutment template, and pile foundation closing plate and abutment closing plate looks butt to in the spread groove with the connecting screw in pile foundation closing plate of bottom plate.
By adopting the technical scheme, the abutment sealing plate is connected with the pile foundation sealing plate, so that the sealing property of the abutment template after being connected with the pile foundation template is improved; and, after abutment template and pile foundation template all poured concrete, the abutment closing plate is located the abutment, and the pile foundation closing plate is located the pile foundation, improves the structural strength of abutment and pile foundation junction through the effect of abutment closing plate and pile foundation closing plate, makes the pier whole more stable.
Optionally, step S5 further includes the following steps: connecting a plurality of clamping pieces in the circumferential direction of the abutment template; when the clamping piece is used, the two clamping plates are respectively abutted against one group of opposite outer side walls of the abutment template, and then the abutting nut is screwed, so that the abutting nut is abutted against the side face, far away from the abutment template, of the clamping plate.
Through adopting above-mentioned technical scheme, through a set of relative lateral wall of holder centre gripping abutment template, make abutment template whole more stable.
Optionally, step S6 further includes the following steps: the butt joint pole is kept away from a pot head of butt joint piece and is established on the locking lever, rotates the butt joint pole, and the locking lever rotates on solid fixed ring under the drive of butt joint pole, until the fixed block embedding fixed slot in, then insert the carrier block location intracavity, with the butt of butt block embedding hoop pole inslot.
By adopting the technical scheme, the abutting rod and the supporting rod are parallel to each other when not used, so that the supporting piece occupies a small space when being stored; in addition, the carrier block inserts the location intracavity, and the butt piece embedding butt inslot makes the carrier block be difficult for sliding outside abutment template, and the butt piece is difficult for sliding outside pile foundation template, makes the bracing piece whole more stable.
Optionally, step S8 further includes the following steps: when the rotary connecting piece is dismantled, the connecting screw is screwed out, the upper fixing plate is separated from the abutment template, the lower fixing plate is separated from the pile foundation template, then the abutment template and the pile foundation template are dismantled, the abutment sealing plate and the pile foundation sealing plate are respectively embedded into the abutment and the pile foundation, and finally, a putty layer is coated outside the abutment sealing plate and the pile foundation sealing plate, and the abutment sealing plate and the pile foundation sealing plate are covered by the putty layer.
Through adopting above-mentioned technical scheme, abutment closing plate and pile foundation closing plate have improved pier overall structure's firmness, cover abutment closing plate and pile foundation closing plate with the putty layer, improve the holistic pleasing to the eye degree of pier.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the integral structure strength of the pier is higher by integrally pouring the pile foundation and the abutment;
2. the bearing block of the supporting piece is abutted with the abutment template, the abutting block is abutted with the pile foundation template, and the pile foundation template and the abutment template are more stable under the action of the supporting piece;
3. the abutment closing plate is connected with the pile foundation closing plate, improves the leakproofness after abutment template and pile foundation template are connected.
Drawings
Fig. 1 is a schematic view of an overall structure of a bridge pier according to an embodiment of the present application.
Fig. 2 is a schematic structural view of the pile-foundation and bridge-abutment tendons according to the embodiment of the present invention.
Fig. 3 is an overall structural schematic diagram of a pile foundation according to an embodiment of the present application.
Fig. 4 is a schematic view of the overall structure of the annular band according to the embodiment of the present application.
Fig. 5 is a schematic structural view of a tightening rod according to an embodiment of the present application.
Fig. 6 is a schematic structural diagram of the abutment formwork and the pile foundation formwork after being connected according to the embodiment of the application.
Fig. 7 is a schematic structural view of a rotary joint according to an embodiment of the present application.
Fig. 8 is a sectional view of the abutment form connected to the pile form according to the embodiment of the present invention, which mainly shows the structure of the rotary connector.
Fig. 9 is a schematic structural diagram of an abutment template according to an embodiment of the present application.
Fig. 10 is a schematic structural view of the supporting member on the abutment formwork and the pile foundation formwork according to the embodiment of the present application.
Fig. 11 is a schematic structural diagram of a support member according to an embodiment of the present application.
Fig. 12 is a schematic structural diagram of a fixing ring according to an embodiment of the present application.
Fig. 13 is a sectional view of a retainer ring according to an embodiment of the present application.
Description of reference numerals: 1. a base; 11. pile foundation reinforcing steel bar frames; 12. bridge abutment reinforcing steel frames; 2. a pile foundation; 21. a pile foundation template; 22. an annular band; 23. a cinching bar; 231. a through hole; 24. a banding cavity; 25. a butt joint groove; 3. an abutment; 31. a bridge abutment template; 4. a reinforcement cage; 5. rotating the connecting piece; 51. pile foundation connecting plates; 52. a bridge abutment connection plate; 53. an outer butt plate; 531. an upper fixing plate; 532. a lower fixing plate; 533. a connecting screw; 54. an inner butt plate; 541. a pile foundation sealing plate; 542. a bridge abutment sealing plate; 543. connecting grooves; 55. fixing the rod; 551. a bump; 6. a clamping member; 61. a screw; 62. a splint; 63. tightly abutting the nut; 64. a positioning cavity; 7. a support member; 71. a support bar; 711. a bearing block; 712. a fixing ring; 713. a locking lever; 714. a fixed block; 715. fixing grooves; 72. a butting rod; 721. a butting block; 73. and a diagonal draw bar.
Detailed Description
The present application is described in further detail below with reference to figures 1-13.
The embodiment of the application discloses a construction method of a bridge pier.
Referring to fig. 1 and 2, the bridge pier comprises a base 1, a pile foundation 2 and an abutment 3, the pile foundation 2 and the abutment 3 are integrally cast through concrete, and the pile foundation 2 and the abutment 3 are arranged on the base 1.
At least one reinforcement cage 4 is pre-buried in base 1, and reinforcement cage 4 is outstanding the upper surface of base 1. Still be provided with pile foundation framework 11 and abutment framework 12 on the base 1, pile foundation framework 11 and abutment framework 12 are connected through welded fastening by a plurality of reinforcing bars, and pile foundation framework 11's top is located to abutment framework 12 to steel reinforcement cage 4 wears to locate in pile foundation framework 11, the abutment framework 12 in proper order.
Referring to fig. 3, a pile foundation formwork 21 is provided outside the pile foundation frames 11. Pile foundation template 21 is the hollow square body in inside, and pile foundation template 21 is formed by a plurality of blocks of plank through the screw concatenation. The pile foundation template 21 overcoat is equipped with a plurality of annular hoops 22, and a plurality of annular hoops 22 set up along the length direction interval of pile foundation template 21.
Referring to fig. 4 and 5, the annular hoops 22 include four hooping rods 23 with the same shape and structure, the length of the hooping rods 23 is greater than the width of the pile foundation formwork 21, and when the hooping rods 23 are horizontally arranged and abut against the outer side wall of the pile foundation formwork 21, the two ends of the hooping rods 23 extend out of the pile foundation formwork 21. Two liang of relative and parallel arrangement of four hooping poles 23, and wherein the hooping pole 23 of two relative settings place on the hooping pole 23 of two other relative settings, and four hooping poles 23 form the hooping chamber 24 that supplies pile foundation template 21 to wear to establish.
Referring to fig. 5, both ends of the tightening rod 23 are provided with a set of through holes 231 penetrating through a set of opposite outer side walls of the tightening rod 23, and the through holes 231 are waist-shaped holes, and the length direction of the through holes 231 is the same as the length direction of the tightening rod 23. When the annular hoop 22 is used, the four hooping rods 23 are respectively abutted against four side faces of the pile foundation formwork 21, when two adjacent hooping rods 23 are connected, the through holes 231 of the two hooping rods 23 are corresponding and perpendicular to each other, then bolts sequentially pass through the two through holes 231, and the two adjacent hooping rods 23 are connected through the bolts.
Referring to fig. 6, similar to the pile foundation 2, the abutment 3 is also provided with an abutment formwork 31 during casting, and the whole abutment formwork 31 is more stable through the clamping piece 6.
The abutment template 31 is in a hollow inverted frustum pyramid shape, the abutment template 31 is formed by splicing a plurality of wood boards through screws, and the area of the lower end face of the abutment template 31 is smaller than that of the upper end face of the abutment template 31.
Referring to fig. 6 and 7, abutment formwork 31 is connected to pile foundation formwork 21 by swivel connection 5. Rotating connector 5 includes pile foundation connecting plate 51 and abutment connecting plate 52, and pile foundation connecting plate 51 imbeds in one of them curb plate of pile foundation template 21, and abutment connecting plate 52 imbeds in one of them curb plate of abutment template 31 to pile foundation connecting plate 51 and abutment connecting plate 52 articulate each other.
Rotating connection spare 5 still includes outer butt plate 53, outer butt plate 53 include with abutment template 31's lateral wall looks butt upper fixed plate 531 and with pile foundation template 21's lateral wall looks butt bottom plate 532, upper fixed plate 531 wears to be equipped with the connecting screw 533 that passes through threaded connection with abutment connecting plate 52, bottom plate 532 also wears to be equipped with the connecting screw 533 that passes through threaded connection with pile foundation connecting plate 51, setting through upper fixed plate 531 and bottom plate 532, make abutment connecting plate 52 in abutment connecting plate 52, pile foundation connecting plate 51 is more stable in pile foundation template 21.
In order to stabilize the abutment formwork 31 and the pile foundation formwork 21, a plurality of fixing rods 55 are disposed between the upper fixing plate 531 and the lower fixing plate 532, and the fixing rods 55 are spaced apart from each other along the length direction of the upper fixing plate 531. The two ends of the fixing rod 55 are rotatably connected with a convex block 551 through hinges, and the convex block 551 is connected with the upper fixing plate 531, the convex block 551 is connected with the lower fixing plate 532 through screws.
Referring to fig. 7 and 8, the rotary connector 5 further includes an inner butt plate 54, the inner butt plate 54 includes a pile foundation sealing plate 541 and an abutment sealing plate 542, the abutment sealing plate 542 and an upper fixing plate 531 are disposed opposite to the inner side wall of the abutment formwork 31, the pile foundation sealing plate 541 and a lower fixing plate 532 are disposed opposite to the side wall of the pile foundation formwork 21, the pile foundation sealing plate 541 and the abutment sealing plate 542 have an included angle, and the two are fixedly connected by welding. The connection screws 533 inserted into the upper fixing plate 531 pass through the abutment connection plate 52 and are then screwed into the abutment sealing plate 542, and the connection screws 533 inserted into the lower fixing plate 532 pass through the pile foundation connection plate 51 and are then screwed into the pile foundation sealing plate 541.
It should be noted that the pile sealing plate 541 and the abutment sealing plate 542 are both provided with a connecting groove 543, the connecting screw 533 is screwed into the connecting groove 543, and the connecting screw 533 does not penetrate through the pile sealing plate 541 and the abutment sealing plate 542.
Referring to fig. 9, the clamping member 6 includes two parallel screws 61, two clamping plates 62 and four abutting nuts 63, the clamping plates 62 are slidably sleeved on the two screws 61, the four abutting nuts are respectively sleeved at two ends of the two screws 61, the abutting nuts and the screws 61 are connected by threads, and the abutting nuts are located on one side of one of the clamping plates 62 away from the other clamping plate 62, taking one screw 61 as an example, and the two abutting nuts are respectively located on outer sides of the two clamping plates 62.
When the clamping piece 6 is used, the two clamping plates 62 are respectively abutted against a group of opposite outer side walls of the abutment template 31, then the abutting nuts are screwed, the abutting nuts and the side surfaces, far away from the abutment template 31, of the clamping plates 62 are abutted, and the clamping plates 62 are fixed on the abutment template 31 through the action of the abutting nuts.
Referring to fig. 10 and 11, a support member 7 is disposed below the abutment template 31, the support member 7 includes a support rod 71 and a butting rod 72, a lower end of the support rod 71 butts against the ground, an upper end of the support rod 71 is connected with a bearing block 711 through a rotating shaft, and butts against an outer side wall of the abutment template 31 through the bearing block 711. In addition, a positioning cavity 64 is formed between two adjacent screw rods 61 of the same clamping piece 6, the bearing block 711 is embedded into the positioning cavity 64, and the bearing block 711 is clamped between two adjacent screw rods 61, so that the bearing block 711 is not easy to slide on the abutment template 31.
Referring to fig. 11 and 12, the support rod 71 is sleeved with a fixing ring 712, and an inner diameter of the fixing ring 712 is slightly larger than an outer diameter of the support rod 71, so that the fixing ring 712 slides on the support rod 71 along a length direction of the support rod 71.
Referring to fig. 13, a locking rod 713 is rotatably disposed through the fixing ring 712, a fixing block 714 is disposed at one end of the locking rod 713 disposed through the fixing ring 712, the fixing block 714 is rotatably connected to the fixing ring 712 via a rotating shaft, and the rotating shaft is eccentrically disposed on the fixing block 714, so that the fixing block 714 can enter the fixing ring 712 when rotating on the fixing ring 712.
Referring to fig. 11 and 12, the outer side wall of the supporting rod 71 is provided with a plurality of fixing grooves 715 for the fixing blocks 714 to be embedded into, the fixing grooves 715 are annular, the fixing grooves 715 are arranged at intervals along the length direction of the supporting rod 71, and one end of the locking rod 713 away from the supporting rod 71 protrudes out of the fixing ring 712.
One end of the abutting rod 72 is sleeved on the fixing ring 712, and the other end is provided with an abutting block 721 abutted against the outer side wall of the pile foundation formwork 21. When the abutting rod 72 is connected with the supporting rod 71, the abutting rod 72 is sleeved on the locking rod 713, and then the abutting rod 72 is rotated to enable the locking rod 713 to rotate on the fixing ring 712, so that the fixing block 714 is embedded into the fixing groove 715, and the fixing ring 712 is not easy to slide on the supporting rod 71.
Further, an abutment groove 25 into which the abutment block 721 is fitted is formed in an outer side wall of the tightening rod 23 away from the pile form 21, the abutment groove 25 is long, and a longitudinal direction of the abutment groove 25 is the same as a longitudinal direction of the tightening rod 23. When the supporting member 7 is used, the height of the fixing ring 712 is adjusted to make the abutting block 721 embedded in the abutting groove 25, so that the abutting block 721 is not easy to move on the pile foundation formwork 21.
The support member 7 further comprises a diagonal member 73, one end of the diagonal member 73 is rotatably connected to the abutment block 721, and the other end is rotatably connected to the bearing block 711. When the bearing block 711 abuts against the abutment form 31 and the abutment block 721 abuts against the tightening rod 23, the support rod 71, the abutment rod 72 and the diagonal draw bar 73 form a stable triangular structure, so that the support 7 is more stable as a whole.
A construction method of a bridge pier comprises the following steps:
step S1, marking out a construction area according to a design map, and digging two pits in the construction area;
and step S2, inserting the reinforcement cage 4 into each pit, wherein the reinforcement cage 4 is 5m higher than the ground.
Step S3, pouring a layer of base 1 with the height of 50cm in a construction area; wherein, the concrete is filled into the pot hole, and the reinforcement cage 4 and the base 1 are poured together.
Step S4, placing the pile foundation steel reinforcement frame 11 above the base 1, splicing the pile foundation formwork 21 outside the pile foundation steel reinforcement frame 11, and connecting the lower end of the pile foundation formwork 21 to the base 1;
wherein, step S4 further includes the following steps:
step S4-1, sleeving an annular hoop 22 outside the pile foundation template 21, abutting the four hooping rods 23 against four side faces of the pile foundation template 21 respectively, moving the hooping rods 23 to enable the through holes 231 of two adjacent hooping rods 23 to be corresponding and mutually perpendicular, and then sequentially passing bolts through the through holes 231 of two adjacent hooping rods 23; the annular hoops 22 are provided with a plurality of annular hoops 22, and the annular hoops 22 are arranged at intervals along the height direction of the pile foundation formwork 21.
Step S5, welding the bridge abutment steel frame 12 above the steel frame of the pile foundation 2, splicing the bridge abutment template 31 outside the steel frame of the bridge abutment 3, and enclosing the bridge abutment steel frame 12 by the bridge abutment template 31;
in addition, step S5 further includes the steps of:
step S5-1, embedding the base 1 connecting plate into the side plate of the pile foundation template 21, embedding the abutment connecting plate 52 into the side plate of the abutment template 31, and connecting the pile foundation template 21 and the abutment template 31 through a connecting member;
step S5-2, attaching the upper fixing plate 531 to the abutment template 31, and connecting the connecting screw 533 with the abutment connecting plate 52 after penetrating through the upper fixing plate 531; fitting the lower fixing plate 532 to the pile foundation formwork 21, and connecting the connecting screw 533 with the pile foundation connecting plate 51 through the lower fixing plate 532; the upper end of the fixing rod 55 is connected with the upper fixing plate 531 by screws, and the lower end of the fixing rod 55 is connected with the lower fixing plate 532 by screws;
step S5-3, attaching the abutment sealing plate 542 to the inner side wall of the abutment template 31, aligning the abutment sealing plate 542 with the side surface of the abutment template 31 close to the pile foundation template 21, and screwing the connecting screw 533 of the upper fixing plate 531 into the connecting groove 543 of the abutment sealing plate 542; attaching the pile foundation sealing plate 541 to the inner side wall of the pile foundation template 21, wherein the pile foundation sealing plate 541 is flush with the side surface of the pile foundation template 21 close to the abutment template 31, the pile foundation sealing plate 541 is abutted with the abutment sealing plate 542, and the connecting screw 533 of the lower fixing plate 532 is screwed into the connecting groove 543 of the pile foundation sealing plate 541;
step S5-4, connecting a plurality of clamping pieces 6 in the circumferential direction of the abutment template 31; when the clamping piece 6 is used, the two clamping plates 62 are respectively abutted against one group of opposite outer side walls of the abutment template 31, and then the abutting nut 63 is screwed, so that the abutting nut 63 is abutted against the side face, far away from the abutment template 31, of the clamping plate 62.
Step S6, providing a brace 7 below the abutment form 31, and abutting the abutment block 721 of the brace 7 against the pile foundation form 21 and the bearing block 711 of the brace 7 against the abutment form 31;
wherein, step S6 further includes the following steps:
step S6-1, one end of the abutting rod 72, which is far away from the abutting block 721, is sleeved on the locking rod 713, the abutting rod 72 is rotated, the locking rod 713 is driven by the abutting rod 72 to rotate on the fixing ring 712 until the fixing block 714 is embedded into the fixing groove 715, then the bearing block 711 is inserted into the positioning cavity 64, and the abutting block 721 is embedded into the abutting groove 25 of the tightening rod 23.
Step S7, concrete is poured on the pile foundation formwork 21 and the abutment formwork 31;
step S8, after the concrete is solidified, sequentially removing the supporting piece 7, the clamping piece 6, the annular hoop 22, the abutment template 31 and the pile foundation template 21;
step S8 further includes the steps of:
step S8-1: when the rotary connecting piece 5 is dismounted, the connecting screw 533 is screwed out, the upper fixing plate 531 is separated from the abutment template 31, the lower fixing plate 532 is separated from the pile foundation template 21, then the abutment template 31 and the pile foundation template 21 are dismounted, the abutment sealing plate 542 and the pile foundation sealing plate 541 are respectively embedded into the abutment 3 and the pile foundation 2, finally, a putty layer is coated outside the abutment sealing plate 542 and the pile foundation sealing plate 541, and the abutment sealing plate 542 and the pile foundation sealing plate 541 are covered by the putty layer.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A construction method of a bridge pier is characterized by comprising the following steps: the method comprises the following steps:
step S1, marking out a construction area according to a design map, and digging two pits in the construction area;
step S2, inserting a reinforcement cage (4) into each pit, wherein the reinforcement cage (4) is 5m higher than the ground;
step S3, pouring a layer of base (1) with the height of 50cm in a construction area; wherein, the concrete is filled into the pot hole, and the reinforcement cage (4) and the base (1) are poured together;
s4, placing the pile foundation steel reinforcement frame (11) above the base (1), splicing the pile foundation formwork (21) outside the pile foundation steel reinforcement frame (11), and connecting the lower end of the pile foundation formwork (21) to the base (1);
step S5, arranging bridge abutment reinforcing frames (12) above the steel frame frames of the pile foundation (2), and arranging bridge abutment templates (31) outside the bridge abutment (3) frames;
step S6, arranging a support piece (7) below the abutment formwork (31), abutting an abutting block (721) of the support piece (7) with the pile foundation formwork (21), and abutting a bearing block (711) of the support piece (7) with the abutment formwork (31);
step S7, concrete is poured on the pile foundation formwork (21) and the abutment formwork (31);
and step S8, removing the supporting piece (7), the abutment template (31) and the pile foundation template (21) in sequence after the concrete is solidified.
2. The construction method of a bridge pier according to claim 1, wherein: step S4 further includes the steps of: a plurality of annular hoops (22) are sleeved outside the pile foundation template (21), and the annular hoops (22) are arranged at intervals along the height direction of the pile foundation template (21).
3. The construction method of a bridge pier according to claim 2, wherein: step S4 further includes the steps of: the four tightening rods (23) are abutted against the four side faces of the pile foundation formwork (21) respectively, the tightening rods (23) are moved to enable the through holes (231) of the two adjacent tightening rods (23) to be corresponding and mutually perpendicular, and then bolts sequentially penetrate through the through holes (231) of the two adjacent tightening rods (23).
4. The construction method of a bridge pier according to claim 1, wherein: step S5 further includes the steps of: the pile foundation formwork (21) is connected with the abutment formwork (31) through a rotary connecting piece (5).
5. The construction method of a bridge pier according to claim 4, wherein: step S5 further includes the steps of: the pile foundation connecting plate (51) is embedded into a side plate of the pile foundation formwork (21), and the abutment connecting plate (52) is embedded into a side plate of the abutment formwork (31).
6. The construction method of a bridge pier according to claim 5, wherein: step S5 further includes the steps of: attaching the upper fixing plate (531) to the abutment template (31), and connecting the connecting screw (533) with the abutment connecting plate (52) after penetrating through the upper fixing plate (531); attaching the lower fixing plate (532) to the pile foundation formwork (21), and connecting the connecting screw (533) with the pile foundation connecting plate (51) through the lower fixing plate (532); the upper end of the fixing rod (55) is connected with the upper fixing plate (531) by screws, and the lower end of the fixing rod (55) is connected with the lower fixing plate (532) by screws.
7. The construction method of a bridge pier according to claim 6, wherein: step S5 further includes the steps of: attaching the abutment sealing plate (542) to the inner side wall of the abutment template (31), enabling the abutment sealing plate (542) to be flush with the side face, close to the pile foundation template (21), of the abutment template (31), and screwing the connecting screw (533) of the upper fixing plate (531) into the connecting groove (543) of the abutment sealing plate (542); with the inboard wall laminating of pile foundation closing plate (541) and pile foundation template (21), the side parallel and level that pile foundation closing plate (541) and pile foundation template (21) are close to abutment template (31) mutually, and pile foundation closing plate (541) and abutment closing plate (542) looks butt to in connecting groove (543) of pile foundation closing plate (541) with connecting screw (533) screw in of bottom plate (532).
8. The construction method of a bridge pier according to claim 1, wherein: step S5 further includes the steps of: a plurality of clamping pieces (6) are circumferentially connected to the abutment template (31); when the clamping piece (6) is used, the two clamping plates (62) are respectively abutted against one group of opposite outer side walls of the abutment template (31), then the abutting nut (63) is screwed, and the abutting nut (63) is abutted against the side face, far away from the abutment template (31), of the clamping plate (62).
9. The construction method of a bridge pier according to claim 1, wherein: step S6 further includes the steps of: one end, far away from the abutting block (721), of the abutting rod (72) is sleeved on the locking rod (713), the abutting rod (72) is rotated, the locking rod (713) is driven by the abutting rod (72) to rotate on the fixing ring (712) until the fixing block (714) is embedded into the fixing groove (715), then the bearing block (711) is inserted into the positioning cavity (64), and the abutting block (721) is embedded into the abutting groove (25) of the hooping rod (23).
10. The construction method of a bridge pier according to claim 1, wherein: step S8 further includes the steps of: when the rotary connecting piece (5) is dismounted, the connecting screw (533) is screwed out, the upper fixing plate (531) is separated from the abutment template (31), the lower fixing plate (532) is separated from the pile foundation template (21), then the abutment template (31) and the pile foundation template (21) are dismounted, the abutment sealing plate (542) and the pile foundation sealing plate (541) are respectively embedded into the abutment (3) and the pile foundation (2), and finally, a putty layer is coated outside the abutment sealing plate (542) and the pile foundation sealing plate (541), and the abutment sealing plate (542) and the pile foundation sealing plate (541) are covered by the putty layer.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117870621A (en) * | 2024-02-18 | 2024-04-12 | 保利长大工程有限公司 | Measurement method and device in three-column pier bent cap construction process |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0290405A1 (en) * | 1987-05-08 | 1988-11-09 | Giuseppe Drago | Modular bridge structure |
| CN103938512A (en) * | 2014-04-30 | 2014-07-23 | 陕西运通公路设计咨询有限公司 | Reverse construction method of newly built road with existing expressway in underneath penetrating manner |
| CN108678372A (en) * | 2018-05-31 | 2018-10-19 | 重庆瑞鑫科五金制品有限公司 | A kind of template inclined support structure |
| CN109235226A (en) * | 2018-11-22 | 2019-01-18 | 深圳市市政设计研究院有限公司 | A kind of assembled Wavelike steel webplate composite beam bridge and its construction method |
| CN211201150U (en) * | 2019-11-21 | 2020-08-07 | 深圳市东深工程有限公司 | Shear wall template structure |
| CN112211113A (en) * | 2020-09-28 | 2021-01-12 | 中铁三局集团有限公司 | Cast-in-place construction method for large-span diamond-shaped bent cap of high pier |
-
2021
- 2021-03-26 CN CN202110323842.0A patent/CN113089487B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0290405A1 (en) * | 1987-05-08 | 1988-11-09 | Giuseppe Drago | Modular bridge structure |
| CN103938512A (en) * | 2014-04-30 | 2014-07-23 | 陕西运通公路设计咨询有限公司 | Reverse construction method of newly built road with existing expressway in underneath penetrating manner |
| CN108678372A (en) * | 2018-05-31 | 2018-10-19 | 重庆瑞鑫科五金制品有限公司 | A kind of template inclined support structure |
| CN109235226A (en) * | 2018-11-22 | 2019-01-18 | 深圳市市政设计研究院有限公司 | A kind of assembled Wavelike steel webplate composite beam bridge and its construction method |
| CN211201150U (en) * | 2019-11-21 | 2020-08-07 | 深圳市东深工程有限公司 | Shear wall template structure |
| CN112211113A (en) * | 2020-09-28 | 2021-01-12 | 中铁三局集团有限公司 | Cast-in-place construction method for large-span diamond-shaped bent cap of high pier |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117870621A (en) * | 2024-02-18 | 2024-04-12 | 保利长大工程有限公司 | Measurement method and device in three-column pier bent cap construction process |
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