CN113373798B - Prefabricated assembled pier and connecting method thereof - Google Patents
Prefabricated assembled pier and connecting method thereof Download PDFInfo
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- CN113373798B CN113373798B CN202110529285.8A CN202110529285A CN113373798B CN 113373798 B CN113373798 B CN 113373798B CN 202110529285 A CN202110529285 A CN 202110529285A CN 113373798 B CN113373798 B CN 113373798B
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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
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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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Abstract
The invention relates to a prefabricated assembly pier and a connection method thereof.A main rib is coated with a sleeve, one part of the sleeve is embedded in a pier stud, the other part of the sleeve is inserted into a bearing platform along with the main rib, and an unbonded section formed by the sleeve can ensure that the main rib is uniformly distributed in a section of area, thereby obviously improving the deformability of the main rib and further improving the ductility of the pier stud; the sleeve spans the interface of new and old concrete of the pier stud and the bearing platform, so that erosion substances can be blocked or the path length of the erosion substances reaching the main reinforcement is prolonged, and the corrosion resistance and the durability of the structure are obviously improved; pre-buried grout bellows in the cushion cap, grout in the grout bellows earlier when pier stud is connected with the cushion cap, the concrete thick liquids form slightly to be higher than the cushion cap top surface and sit the thick liquid layer, main muscle inserts the grout bellows under specific guider's guide when the pier stud whereabouts, the pier stud bottom with sit thick liquid layer closely knit and be connected, main muscle is closely knit with the concrete thick liquids in the grout bellows and be connected, the mud jacking process has been avoided, simplify the construction process, improve the efficiency of construction.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to a prefabricated assembled pier and a connecting method thereof.
Background
The pier is an important bearing member for supporting a bridge structure and is of great importance to the safety of the bridge structure, and the pier is often designed to generate plastic hinges at the bottom of the pier so as to improve the overall anti-seismic performance of the bridge structure. In recent years, the prefabrication and assembly technology of the pier structure is rapidly developed, the operation efficiency of a construction site is greatly improved, and the construction environment is effectively improved.
The connection of the grouting sleeve and the grouting corrugated pipe is two common prefabricated bridge pier connection modes, such as a prefabricated assembled bridge pier-bearing platform node connection mode with a flexible layer arranged at the bottom of the pier and a manufacturing method thereof, disclosed in the Chinese patent publication No. CN 106869017A. However, the joint position of the prefabricated pier is a natural weak part, which often causes concentrated damage and destruction. Experimental studies of a number of grout sleeve connected piers have confirmed: compared with a cast-in-place pier, the ductility of the cast-in-place pier is reduced by 10% -30% under the same reinforcement condition, so that the cast-in-place pier is not recommended to be adopted in a strong earthquake area, and the development and application of a prefabricated assembly technology are limited to a great extent. The ductility capability of the grouting corrugated pipe is superior to that of the grouting sleeve, but even the grouting corrugated pipe has the ductility capability only approximately equal to that of a cast-in-place pier.
In addition, seams of all prefabricated assembled piers are vulnerable parts of structural durability, a large number of experiments prove that seams of various new and old concretes are also convenient and fast intrusion channels of various erosion qualities, compared with a cast-in-place structure, the corrosion resistance of the prefabricated assembled piers is obviously reduced, the seams of the prefabricated assembled piers at the bottom of the piers are generally positioned below a ground line, some of the prefabricated assembled piers are also positioned in a fluctuation area of an underground water level, and meanwhile, the bottom of the piers is often positioned at a maximum bending moment caused by various horizontal live loads, and the durability problem is particularly outstanding.
Furthermore, although a large number of experimental studies have confirmed that the connection strength of the sleeve is significantly higher than that of the reinforcing material on the premise of ensuring the grouting quality, in the engineering practice, situations of leaking grouting and incapability of ensuring the grouting quality are frequently generated, and since grouting belongs to a concealed project, the grouting is not easy to control in construction management and brings a great risk to the engineering quality invisibly.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a prefabricated assembled pier and a connection method thereof, wherein a main rib is coated with a sleeve, the sleeve is a bonding insulating coating or a bonding insulating coating sleeve, one part of the sleeve is embedded in the pier column, the other part of the sleeve is inserted into a bearing platform along with the main rib, and a non-bonding section formed by the sleeve can ensure that the main rib is uniformly distributed in a section of area in a strain mode, so that the deformation capability of the main rib is obviously improved, the ductility of the pier column is further improved, the seismic performance of the prefabricated assembled pier is obviously improved, and the prefabricated assembled pier which can be applied to high-intensity areas is provided; the sleeve pipe spans the interface of new and old concrete of the pier stud and the bearing platform, can block erosion substances or prolong the path length of the erosion substances reaching the main reinforcement, and obviously improves the corrosion resistance and the durability of the structure.
The purpose of the invention can be realized by the following technical scheme:
a prefabricated assembled pier comprises a pier column and a bearing platform, wherein a main rib is pre-embedded in the pier column, the main rib extends out of the bottom of the pier column for a length, a sleeve is coated on the main rib, one part of the sleeve is pre-embedded in the pier column, and the other part of the sleeve is exposed on the part of the main rib extending out of the pier column;
the grouting corrugated pipe is embedded in the bearing platform, the top of the grouting corrugated pipe is flush with the top surface of the bearing platform, a guide device is inserted in the grouting corrugated pipe and used for guiding the main ribs and the sleeves coated on the main ribs to be inserted into the grouting corrugated pipe, the grouting corrugated pipe is filled with concrete slurry, and the concrete slurry overflows and forms a grout layer higher than the top surface of the bearing platform.
Preferably, the number of the main ribs is the same as that of the grouting corrugated pipes, and the main ribs and the grouting corrugated pipes are set according to actual engineering requirements.
Preferably, the grouting corrugated pipes are individually buried in the bearing platform.
Preferably, the grouting corrugated pipes are integrally hoisted and buried in the bearing platform after being connected into a group.
Preferably, the sleeve is an adhesive insulating coating for blocking access of erodible matter to the main bar, such as an epoxy coating applied to the main bar.
Preferably, the sleeve is a bonding insulating sleeve with the diameter larger than or equal to the diameter of the main rib and used for blocking the erosion substances from approaching the main rib, such as a PVC pipe or a metal pipe or other bonding insulating sleeves capable of achieving the effect of blocking the erosion substances.
Preferably, a large cone protruding towards the direction of the bearing platform is reserved at the center of the bottom of the pier stud, a small cone protruding towards the direction of the bearing platform is reserved at the root of the main rib at the bottom of the pier stud, and the protruding length of the large cone is larger than that of the small cone.
Preferably, the shape of the large cone and the small cone is similar to a cone or a circular truncated cone protruding towards the direction of the bearing platform.
Preferably, the length of the casing is set according to the ductility requirement and the durability requirement of the pier stud.
Preferably, half of the sleeve is embedded in the pier stud, and the other half of the sleeve is exposed on the part of the main rib extending out of the pier stud.
Preferably, the periphery of the grout layer is provided with a baffle plate, and the baffle plate is used for blocking concrete grout.
Preferably, the grouting corrugated pipe is a metal corrugated pipe.
Preferably, guider includes a plurality of direction muscle and 1 ring, the top and the ring of direction muscle are connected, and the ring is parallel with the top surface of cushion cap, and in the grout bellows was located to the direction muscle, main muscle and the cover pipe of cladding on main muscle passed through the ring inserts the grout bellows.
Preferably, the plurality of guide ribs are uniformly distributed, and the bottoms of the guide ribs are inwardly folded so as to guide the main ribs and the sleeves coated on the main ribs to be inserted into the grouting corrugated pipe.
A connecting method of a prefabricated assembled pier comprises the following steps:
s1, prefabricating a pier stud, coating a sleeve on a main rib, embedding the main rib in the pier stud, wherein the main rib extends out of the bottom of the pier stud by a section of length, one part of the sleeve is embedded in the pier stud, the other part of the sleeve is exposed on the part of the main rib extending out of the pier stud, a large cone protruding towards the direction of a bearing platform is reserved at the center of the bottom of the pier stud, a small cone protruding towards the direction of the bearing platform is reserved at the root part of the main rib at the bottom of the pier stud, and the protruding length of the large cone is larger than that of the small cone; prefabricating a bearing platform, wherein a grouting corrugated pipe is pre-embedded in the bearing platform, and the top of the grouting corrugated pipe is flush with the top surface of the bearing platform;
s2, inserting a guide device into the grouting corrugated pipe, and pouring concrete slurry into the grouting corrugated pipe, wherein the concrete slurry overflows and forms a slurry sitting layer higher than the top surface of the bearing platform;
s3, the pier stud falls, the main rib is inserted into the grouting corrugated pipe through the guide device, the sleeve coated on the main rib is inserted into the grouting corrugated pipe along with the main rib, concrete slurry in the grouting corrugated pipe is extruded, and the large cone and the small cone are in contact with the sitting slurry layer and extrude the sitting slurry layer until the pier stud falls to the preset height.
Preferably, the connection method further includes step S4: and arranging baffles around the grout layer, wherein the baffles are used for blocking the extruded concrete grout, and the extruded concrete grout is used for manufacturing a column base water dispersing structure.
Compared with the prior art, the invention has the following beneficial effects:
(1) the sleeve pipe is coated on the main rib, the sleeve pipe is a bonding insulating coating or a bonding insulating coating sleeve pipe, one part of the sleeve pipe is embedded in the pier stud, one part of the sleeve pipe is inserted into the bearing platform along with the main rib, the non-bonding section formed by the sleeve pipe can enable the main rib to be strained and uniformly distributed in one section of area, the deformability of the main rib is obviously improved, the ductility of the pier stud is further improved, the anti-seismic performance of the prefabricated assembled pier is obviously improved, and the prefabricated assembled pier which can be applied to high-intensity areas is provided.
(2) The main reinforcement is coated with the sleeve, the sleeve is a bonding insulating coating or a bonding insulating coating sleeve, and spans the interface between new and old concrete of the pier column and the bearing platform, so that erosion substances can be blocked or the path length of the erosion substances reaching the main reinforcement is prolonged, and the corrosion resistance and the durability of the structure are obviously improved.
(3) Grout earlier in the grout bellows, the pier stud that falls again makes main muscle insert the grout bellows, and the grout bellows is in advance grouted, and the risk of leaking the filling can be avoided in construction and the inspection of being convenient for, reduces concealed engineering quality risk.
(4) The large cone and the small cone arranged at the bottom of the pier stud ensure the compactness of the concrete slurry at the bottom of the pier stud and around the main reinforcement, avoid the grouting process, simplify the construction process and improve the construction efficiency.
(5) The concrete slurry extruded by the grouting corrugated pipe, the large cone and the small cone extruded mortar layer is blocked by the baffle plate after the main ribs are inserted into the grouting corrugated pipe, the large cone and the small cone extruded mortar layer, and finally a column base water dispersing structure is formed, so that rainwater and the like flowing in along the pier wall can be drained in time, and the corrosion resistance and the durability of the structure are improved.
Drawings
FIG. 1 is a schematic view of an exemplary embodiment of a pier stud and a cap before they are connected;
FIG. 2 is a schematic view of the pier stud and the cap in the embodiment after being connected;
FIG. 3 is a schematic view showing the installation of the guide device in the embodiment;
FIG. 4 is a schematic structural view of a guide device in an embodiment;
reference numerals: 1. pier stud, 2, main muscle, 3, sleeve pipe, 4, cushion cap, 5, grout bellows, 6, guider, 7, bedding layer, 8, little cone, 9, big cone, 10, baffle, 11, column base water dispersing structure.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the present invention is not limited to the size and thickness of each component. Parts are exaggerated in the drawing where appropriate for clarity of illustration.
Example 1:
a prefabricated assembled pier is shown in figures 1 and 2 and comprises a pier stud 1 and a bearing platform 4, wherein a main rib 2 is embedded in the pier stud 1, the main rib 2 extends out of the bottom of the pier stud 1 by a certain length, a sleeve 3 is coated on the main rib 2, one part of the sleeve 3 is embedded in the pier stud 1, the other part of the sleeve 3 is exposed on the part of the main rib 2 extending out of the pier stud 1, a large cone 9 protruding towards the bearing platform 4 is reserved at the center of the bottom of the pier stud 1, a small cone 8 protruding towards the bearing platform 4 is reserved at the root of the main rib 2 at the bottom of the pier stud 1, and the protruding length of the large cone 9 is greater than that of the small cone 8;
the grout bellows 5 is pre-buried in the cushion cap 4, and the top of grout bellows 5 flushes with the top surface of cushion cap 4, has inserted guider 6 in the grout bellows 5, and guider 6 is used for guiding main muscle 2 and the sleeve pipe 3 of cladding on main muscle 2 to insert grout bellows 5, is full of concrete slurry in the grout bellows 5, and concrete slurry overflows and forms the grout blanket 7 that is higher than the top surface of cushion cap 4.
A connecting method of a prefabricated assembled pier comprises the following steps:
s1, prefabricating a pier stud 1, coating a sleeve 3 on a main rib 2, embedding the main rib 2 in the pier stud 1, extending a section of length of the main rib 2 from the bottom of the pier stud 1, embedding one part of the sleeve 3 in the pier stud 1, exposing the other part of the sleeve 3 on the part of the main rib 2 extending out of the pier stud 1, reserving a large cone 9 protruding towards the bearing platform 4 at the center of the bottom of the pier stud 1, reserving a small cone 8 protruding towards the bearing platform 4 at the root part of the main rib 2 at the bottom of the pier stud 1, wherein the protruding length of the large cone 9 is greater than that of the small cone 8; prefabricating a bearing platform 4, embedding a grouting corrugated pipe 5 in the bearing platform 4, wherein the top of the grouting corrugated pipe 5 is flush with the top surface of the bearing platform 4;
s2, inserting a guide device 6 into the grouting corrugated pipe 5, and pouring concrete slurry into the grouting corrugated pipe 5, wherein the concrete slurry overflows and forms a grout layer 7 higher than the top surface of the bearing platform 4;
s3, the pier stud 1 falls, the main rib 2 is inserted into the grouting corrugated pipe 5 through the guide device 6, the sleeve 3 coated on the main rib 2 is inserted into the grouting corrugated pipe 5 along with the main rib 2, concrete slurry in the grouting corrugated pipe 5 is extruded, and the large cone 9 and the small cone 8 are in contact with the mortar layer 7 and extrude the mortar layer 7 until the pier stud 1 falls to the preset height;
s4: the periphery of the mortar layer 7 is provided with a baffle 10, the baffle 10 is used for blocking the extruded concrete slurry, and the extruded concrete slurry is used for manufacturing a column base water dispersing structure 11.
In the process of the pier stud 1 falling, along with the continuous insertion of the main reinforcement 2 into the grouting corrugated pipe 5, the concrete slurry in the grouting corrugated pipe 5 is pressed to overflow upwards, and the compactness of the concrete slurry around the main reinforcement 2 is ensured. The large cone 9 and the small cone 8 are approximately in the shape of a cone or a truncated cone protruding towards the direction of the bearing platform 4, the small cone 8 at the root of the main rib 2 can further eliminate an air cavity possibly caused by a slurry concave surface when the main rib 2 is inserted, the protruding length of the large cone 9 is greater than that of the small cone 8, and the large cone 9 at the center of the bottom of the pier stud 1 can ensure that the center of the bottom surface of the pier stud 1 is firstly contacted with the sitting slurry layer 7 and extrude concrete slurry of the sitting slurry layer 7 to overflow to the periphery so as to ensure the connection compactness of the bottom of the pier stud 1 and the sitting slurry layer 7; the main reinforcement 2 is inserted into the grouting corrugated pipe 5, the large cone 9 and the small cone 8 to extrude the concrete slurry extruded by the mortar layer 7, and the concrete slurry is stopped by the baffle 10, and finally the column base water dispersing structure 11 is formed, and rainwater and the like flowing along the pier wall can be drained away in time.
The pre-buried main muscle 2 superscript cladding in pier stud 1 bottom has sleeve pipe 3, and the unbonded section of formation can make main muscle 2 meet an emergency evenly distributed in a section region, is showing the deformability who improves main muscle 2, and then improves pier stud 1's ductility. Because grouting corrugated pipe 5 connects the ductility ability that can have approximate cast-in-place structure, the application has increased the non-bonding section of cladding on main muscle 2 on grouting corrugated pipe 5's basis, consequently this connection method can provide the ductility ability that is higher than cast-in-place structure, and the amplitude accessible of improvement adjusts the length of non-bonding section and realizes, has showing the anti-seismic performance who has promoted the prefabricated pier of assembling.
The sleeve 3 coated on the main reinforcement 2 spans the interface of the new concrete and the old concrete of the pier column 1 and the bearing platform 4, so that erosion substances can be blocked, the path length of the erosion substances reaching the main reinforcement 2 is prolonged, the corrosion resistance of the structure can be obviously improved, the durability of the structure is not lower than that of a cast-in-place structure, and the adaptability of the prefabricated assembled pier to different environmental conditions is obviously improved.
A large cone 9 is reserved in the center of the bottom of the pier stud 1, so that the compactness of concrete slurry at the bottom of the pier stud 1 can be ensured; the small cone 8 is reserved at the root parts of the main ribs 2 and the sleeve 3 at the bottom of the pier stud 1, so that the compactness of concrete slurry around the main ribs 2 can be ensured, and an air cavity possibly caused by a slurry concave surface when the main ribs 2 are inserted into the grouting corrugated pipe 5 is eliminated. The extruded concrete slurry is blocked by the baffle 10 and finally made into a column base water dispersing structure 11, so that the durability and corrosion resistance of the prefabricated and assembled pier structure can be further ensured.
From the aspect of construction, grout bellows 5 is in advance grouted, and the construction and the inspection of being convenient for can avoid leaking the risk of irritating, reduce and conceal engineering quality risk, and grout layer 7 is sat in main muscle 2 insertion grout bellows 5, big cone 9 and the extrusion of little cone 8 simultaneously, still can avoid the mud jacking process completely, simplifies the construction process, improves the efficiency of construction. In addition, the concrete slurry in the grouting corrugated pipe 5 is discharged through extrusion, so that the grouting compaction quality in the grouting corrugated pipe 5 can be ensured, and the reliable anchoring performance of the main ribs 2 is ensured.
The main ribs 2 and the grouting corrugated pipes 5 are the same in number and set according to actual engineering requirements, and the grouting corrugated pipes 5 can be buried in the bearing platform 4 individually and respectively or can be connected into groups and then integrally hoisted and buried in the bearing platform 4.
The sleeve 3 is used for blocking erosion substances from approaching the main bar 2, and can be a bonding insulating coating, such as an epoxy resin coating coated on the main bar 2, or a bonding insulating sleeve with the diameter larger than or equal to the diameter of the main bar 2, such as a PVC pipe or a metal pipe or other bonding insulating sleeves capable of blocking erosion substances. The length of the casing 3 can be adjusted according to the ductility and durability requirements of the pier stud 1.
In this embodiment, the grouting corrugated tube 5 is a metal corrugated tube, but in other embodiments, a grouting corrugated tube made of another material may be used.
In this embodiment, half of sleeve pipe 3 is pre-buried in pier stud 1, and on half exposed in the part that main muscle 2 stretches out pier stud 1, can make the length of unbonded section in pier stud 1 and cushion cap 4 the same like this, main muscle 2 evenly distributed that meets an emergency. In other embodiments, the length of the sleeve 3 within the pier 1 and the length of the sleeve 3 within the platform 4 can be adjusted separately.
As shown in fig. 3, when the concrete grout is poured into the grouting bellows 5 with the grout level slightly higher than the top surface of the cap 4, the concrete position of the grouting bellows 5 is not visible, and the main tendons 2 can be guided to be smoothly inserted into the grouting bellows 5 by the guide means 6 inserted into the grouting bellows 5 when the pier stud 1 falls.
As shown in fig. 4, in this embodiment, the guiding device 6 includes 3 direction muscle and 1 ring, and direction muscle and ring adopt ordinary reinforcing bar to make can, and the top and the ring of direction muscle are connected, and the ring is parallel with the top surface of cushion cap 4, and in grout bellows 5 was located to the direction muscle, main muscle 2 and the sleeve pipe 3 of cladding on main muscle 2 inserted grout bellows 5 through the ring.
The 3 guide ribs are uniformly distributed according to an angle of 120 degrees, and the bottoms of the guide ribs are folded inwards so as to guide the main rib 2 and the sleeve 3 coated on the main rib 2 to be inserted into the grouting corrugated pipe 5.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection determined by the claims.
Claims (9)
1. A prefabricated assembled pier comprises a pier column (1) and a bearing platform (4), and is characterized in that main ribs (2) are pre-embedded in the pier column (1), the main ribs (2) extend out of the bottom of the pier column (1) for a certain length, a sleeve (3) is wrapped on each main rib (2), one part of the sleeve (3) is pre-embedded in the pier column (1), and the other part of the sleeve (3) is exposed on the part of the main ribs (2) extending out of the pier column (1);
a grouting corrugated pipe (5) is pre-buried in the bearing platform (4), the top of the grouting corrugated pipe (5) is flush with the top surface of the bearing platform (4), a guide device (6) is inserted in the grouting corrugated pipe (5), the guide device (6) is used for guiding the main rib (2) and the sleeve (3) coated on the main rib (2) to be inserted into the grouting corrugated pipe (5), the grouting corrugated pipe (5) is filled with concrete slurry, and the concrete slurry overflows and forms a sitting layer (7) higher than the top surface of the bearing platform (4);
the bellied big cone of cushion cap (4) direction (9) is reserved in center department to the bottom of pier stud (1), the bottom of pier stud (1) is reserved in main muscle (2) root department to bellied little cone (8) of cushion cap (4) direction, and the protruding length of big cone (9) is greater than the protruding length of little cone (8), big cone (9) are used for guaranteeing pier stud (1) bottom surface center at first with sit thick liquid layer (7) contact to the extrusion sits the concrete thick liquids of thick liquid layer (7) and overflows to all around, with the density of being connected of guaranteeing pier stud (1) bottom and sitting thick liquid layer (7), little cone (8) are used for guaranteeing the density nature of the concrete thick liquids around main muscle (2), get rid of the air cavity that the thick liquid concave liquid level when main muscle (2) insert grout bellows (5) probably leads to.
2. A prefabricated pier assembly according to claim 1, wherein the sleeves (3) are replaced by an adhesive insulating coating for blocking the access of corrosive substances to the tendons (2).
3. A prefabricated pier assembly according to claim 1, wherein the sleeves (3) are bonded insulating sleeves with a diameter greater than or equal to that of the main bars (2) and are used for blocking erosion substances from approaching the main bars (2).
4. The precast assembling pier as claimed in claim 1, wherein the large cone (9) and the small cone (8) are shaped like a cone or a truncated cone protruding towards the bearing platform (4).
5. The prefabricated assembly pier of claim 1, wherein baffles (10) are arranged around the grout layer (7), and the baffles (10) are used for blocking concrete grout.
6. The prefabricated assembled pier according to claim 1, wherein the guide device (6) comprises a plurality of guide ribs and 1 circular ring, the tops of the guide ribs are connected with the circular ring, the circular ring is parallel to the top surface of the bearing platform (4), the guide ribs are arranged in the grouting corrugated pipe (5), and the main ribs (2) and the sleeve (3) coated on the main ribs (2) are inserted into the grouting corrugated pipe (5) through the circular ring.
7. The prefabricated assembly pier of claim 6, wherein the plurality of guide ribs are uniformly distributed, and bottoms of the guide ribs are inwardly gathered.
8. A connecting method of a prefabricated pier assembly according to any one of claims 1 to 7, comprising the steps of:
s1, prefabricating a pier column (1), coating a sleeve (3) on a main rib (2), embedding the main rib (2) in the pier column (1), extending the main rib (2) out of the bottom of the pier column (1) for a certain length, embedding one part of the sleeve (3) in the pier column (1), and exposing the other part of the sleeve (3) on the part of the main rib (2) extending out of the pier column (1); prefabricating a bearing platform (4), embedding a grouting corrugated pipe (5) in the bearing platform (4), wherein the top of the grouting corrugated pipe (5) is flush with the top surface of the bearing platform (4);
s2, inserting a guide device (6) into the grouting corrugated pipe (5), and pouring concrete slurry into the grouting corrugated pipe (5), wherein the concrete slurry overflows and forms a grout layer (7) higher than the top surface of the bearing platform (4);
s3, the pier stud (1) falls, the main rib (2) is inserted into the grouting corrugated pipe (5) through the guide device (6), the sleeve (3) coated on the main rib (2) is inserted into the grouting corrugated pipe (5) along with the main rib (2), and concrete slurry in the grouting corrugated pipe (5) is extruded until the pier stud (1) falls to the preset height.
9. The method for connecting the precast pier for pier erection according to claim 8, further comprising the step of S4: baffles (10) are arranged on the periphery of the mortar layer (7), the baffles (10) are used for blocking the extruded concrete slurry, and the extruded concrete slurry is used for manufacturing a column base water dispersing structure (11).
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060128804A (en) * | 2006-11-24 | 2006-12-14 | 전영총 | The pc structure pier and manufacturing method thereof |
| CN202543788U (en) * | 2012-04-24 | 2012-11-21 | 上海市政工程设计研究总院（集团）有限公司 | Precast segment assembly pier structure |
| CN105113389A (en) * | 2015-09-18 | 2015-12-02 | 河海大学 | Assembled type bridge pier column member with steel-concrete composite structure |
| CN106400678A (en) * | 2016-11-10 | 2017-02-15 | 济南轨道交通集团有限公司 | Prefabricated column, pier column structure and construction method |
| CN106592440A (en) * | 2016-12-30 | 2017-04-26 | 河南省交通规划设计研究院股份有限公司 | Construction method of prefabricated segment type pier |
| CN206521694U (en) * | 2017-02-15 | 2017-09-26 | 重庆交通大学 | A kind of precast pier structure |
| CN107794837A (en) * | 2016-08-31 | 2018-03-13 | 南京理工大学 | Suitable for the prefabricated assembled bridge pier and its construction method of middle meizoseismal area |
| CN108457186A (en) * | 2017-12-27 | 2018-08-28 | 上海市政工程设计研究总院（集团）有限公司 | Precast assembly bridge pier modular level splicing seams grouting exhaust structure and grouting method |
| CN208183519U (en) * | 2018-04-08 | 2018-12-04 | 中铁上海设计院集团有限公司 | A kind of Precast Pier Columns splicing structure for Bridge High-pier |
| CN110468694A (en) * | 2019-09-06 | 2019-11-19 | 郑州大学 | Spigot-and-socket Self-resetting multi-segmental precast pier and its assembly method |
| CN111335154A (en) * | 2020-04-15 | 2020-06-26 | 中铁四局集团第二工程有限公司 | Bridge pier column with prefabricated and assembled segments and construction method thereof |
| CN111809510A (en) * | 2020-08-13 | 2020-10-23 | 上海应用技术大学 | Bearing-socket type prefabricated bridge pier connecting structure and construction method thereof |
| CN112267373A (en) * | 2020-09-23 | 2021-01-26 | 同济大学 | Partially unbonded grouting corrugated pipe prefabricated assembly connecting structure and construction method |
-
2021
- 2021-05-14 CN CN202110529285.8A patent/CN113373798B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060128804A (en) * | 2006-11-24 | 2006-12-14 | 전영총 | The pc structure pier and manufacturing method thereof |
| CN202543788U (en) * | 2012-04-24 | 2012-11-21 | 上海市政工程设计研究总院（集团）有限公司 | Precast segment assembly pier structure |
| CN105113389A (en) * | 2015-09-18 | 2015-12-02 | 河海大学 | Assembled type bridge pier column member with steel-concrete composite structure |
| CN107794837A (en) * | 2016-08-31 | 2018-03-13 | 南京理工大学 | Suitable for the prefabricated assembled bridge pier and its construction method of middle meizoseismal area |
| CN106400678A (en) * | 2016-11-10 | 2017-02-15 | 济南轨道交通集团有限公司 | Prefabricated column, pier column structure and construction method |
| CN106592440A (en) * | 2016-12-30 | 2017-04-26 | 河南省交通规划设计研究院股份有限公司 | Construction method of prefabricated segment type pier |
| CN206521694U (en) * | 2017-02-15 | 2017-09-26 | 重庆交通大学 | A kind of precast pier structure |
| CN108457186A (en) * | 2017-12-27 | 2018-08-28 | 上海市政工程设计研究总院（集团）有限公司 | Precast assembly bridge pier modular level splicing seams grouting exhaust structure and grouting method |
| CN208183519U (en) * | 2018-04-08 | 2018-12-04 | 中铁上海设计院集团有限公司 | A kind of Precast Pier Columns splicing structure for Bridge High-pier |
| CN110468694A (en) * | 2019-09-06 | 2019-11-19 | 郑州大学 | Spigot-and-socket Self-resetting multi-segmental precast pier and its assembly method |
| CN111335154A (en) * | 2020-04-15 | 2020-06-26 | 中铁四局集团第二工程有限公司 | Bridge pier column with prefabricated and assembled segments and construction method thereof |
| CN111809510A (en) * | 2020-08-13 | 2020-10-23 | 上海应用技术大学 | Bearing-socket type prefabricated bridge pier connecting structure and construction method thereof |
| CN112267373A (en) * | 2020-09-23 | 2021-01-26 | 同济大学 | Partially unbonded grouting corrugated pipe prefabricated assembly connecting structure and construction method |
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