CN117513173A - Prefabricated pier stud capping beam construction method - Google Patents
Prefabricated pier stud capping beam construction method Download PDFInfo
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- CN117513173A CN117513173A CN202311703975.6A CN202311703975A CN117513173A CN 117513173 A CN117513173 A CN 117513173A CN 202311703975 A CN202311703975 A CN 202311703975A CN 117513173 A CN117513173 A CN 117513173A
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- 238000010276 construction Methods 0.000 title claims abstract description 48
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 49
- 239000010959 steel Substances 0.000 claims abstract description 49
- 238000011065 in-situ storage Methods 0.000 claims abstract description 34
- 238000009434 installation Methods 0.000 claims abstract description 12
- 239000004570 mortar (masonry) Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 239000004593 Epoxy Substances 0.000 claims description 6
- 238000009432 framing Methods 0.000 claims description 5
- 238000004873 anchoring Methods 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009193 crawling Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a prefabricated pier stud capping beam construction method, which comprises the following steps: cast-in-situ bearing platform construction, first-section prefabricated pier column installation, prefabricated pier column lengthening construction, prefabricated capping beam installation and steel cross brace installation. The beneficial effects of the invention are as follows: the high-efficiency connection technology of the prefabricated pier column and the foundation is realized. The prefabricated pier column can be quickly and stably connected with a cast-in-situ bearing platform provided with a bearing platform core column through a self shear groove, and can also be quickly and stably connected with the prefabricated pipe pile through a connecting section steel pipe provided with an upper flange plate, so that the operation is simple and the applicability is wide; the technical scheme for installing the steel cross braces of the auxiliary wheel sets is provided. By means of the prefabricated bent cap that has been installed and put in place as the platform, the combination adopts auxiliary wheelset, hoist engine and smooth rope, realizes the high-efficient installation of steel stull, and speed is controllable when installing, and construction safety is high, has solved the construction problem that the large-scale lifting device in some places can't enter the court.
Description
Technical Field
The invention belongs to the field of bridge engineering, and particularly relates to a construction method of a prefabricated pier stud bent cap.
Background
In bridge construction, cast-in-situ construction is adopted for the bridge pier column and the capping beam construction, but in recent years, engineering construction is advancing toward standardization and industrialization, and an assembled bridge is generated. The assembled bridge can utilize mechanized, standardized and automatic production lines to carry out standard production on a large number of repeated works on a construction site due to the industrial production of the components, and the shaping and the standardization of the components are combined, so that the labor efficiency is remarkably improved, and the labor cost is reduced. Practical engineering indicates that the construction technology of the prefabricated bridge can save 40% of construction period, 50% of labor force requirement and 60% of production place requirement.
At present, many researches and practices are carried out on the assembled bridge Liang Jin at home and abroad, but some procedures still have the problems of complex process and low construction efficiency, such as leveling problems of installation leveling layers: the traditional leveling layers of the prefabricated pier column and the bearing platform foundation are often manually leveled by adopting small tools, so that corners are difficult to process, the overall flatness is difficult to control, and the traditional leveling machines are difficult to adapt to the special working conditions; for example, the problem of installation of the connection component between prefabricated pier columns on rugged road sections is solved, the manual crawling ladder is generally erected on two sides of the prefabricated pier columns in the prior art, the installation mode of manual assistance is adopted through hoisting of a crane, on one hand, equipment renting cost is high, on the other hand, the approach condition of large equipment is severe, and applicability is narrow.
In view of the above, there is a need to provide a construction method for bridge assembly type components with high construction speed, low construction risk and outstanding economic and technical benefits.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a construction method of a prefabricated pier stud capping beam.
The construction method of the prefabricated pier stud capping beam comprises the following steps:
s1, construction of a cast-in-situ bearing platform: pouring a cast-in-place bearing platform, reserving an annular post-pouring cup opening, paving epoxy mortar at the bottom of the annular post-pouring cup opening, and leveling by using a cup opening leveling device to form a cup opening leveling layer;
s2, installing a first-section prefabricated pier stud: the first section prefabricated pier stud is hung into a reserved annular post-pouring cup opening of the cast-in-situ bearing platform and post-pouring cup opening concrete is poured;
s3, prefabricating pier stud lengthening construction: connecting a plurality of long sections of connecting pier columns on the first section of prefabricated pier column in an anchoring mode of an upper flange plate and a lower flange plate, and reserving a prefabricated pier main rib at the top of the last section of prefabricated pier column;
s4, installing a prefabricated bent cap: hoisting the prefabricated capping beam to the position right above the prefabricated pier column of the end section, aligning the pre-buried grouting sleeve with the main rib of the prefabricated pier, and grouting the pre-buried grouting sleeve;
s5, mounting a steel cross brace: and steel cross braces are installed between the connecting pier columns through sliding lifting of the auxiliary wheel sets.
In the step S1, foundation earthwork is excavated according to pile foundation coordinates, steel bars of a cast-in-situ bearing platform are bound, an annular post-pouring cup opening is reserved on the cast-in-situ bearing platform, concrete is poured after a steel template is supported, and the steel template is removed after maintenance is finished to form the cast-in-situ bearing platform; the cup mouth leveling device comprises a main adjusting rod, an auxiliary telescopic rod, inclined supporting rods, an anti-slip base and leveling end plates, wherein the main adjusting rod is in butt joint with the cup mouth wall of the cast-in-situ bearing platform through the inclined supporting rods on two sides, the anti-slip base is arranged at the tail end of the inclined supporting rod, which is close to the cup mouth of the cast-in-situ bearing platform, the lower end of the main adjusting rod is connected with the auxiliary telescopic rod, and the auxiliary telescopic rod is provided with the annular leveling end plates.
Preferably, a bearing platform core column is arranged in an annular post-pouring cup opening of a cast-in-situ bearing platform, in the step S2, the first-section prefabricated pier column is hung right above the cast-in-situ bearing platform through a hoisting device, after the center of the first-section prefabricated pier column is initially aligned with the center of the cast-in-situ bearing platform core column, the first-section prefabricated pier column is lowered until the bearing platform core column is completely embedded into the first-section prefabricated pier column, and then concrete is poured in the reserved annular post-pouring cup opening, so that the first-section prefabricated pier column installation operation is completed.
In the step S2, when the first prefabricated pier column is connected with the pile foundation, a lower flange is arranged at the top of the pile foundation, and the bottom of the first prefabricated pier column is directly connected with the lower flange arranged at the top of the pile foundation through an upper flange; the bottom of the first-section prefabricated pier column is provided with a shear groove, the bottom of the first-section prefabricated pier column which is directly connected with the pile foundation is also provided with a connecting section steel pipe, the inner wall of the connecting section steel pipe is provided with a shear nail, and the lower end of the connecting section steel pipe is provided with an upper flange plate.
Preferably, in step S2, the pile top is provided with a pile end anchor ear, the pile end anchor ear is provided with a lower flange, and the bottom of the lower flange is also connected and fixed with a pile foundation main rib of the pile foundation through a connecting lock catch.
Preferably, after the construction of the prefabricated pier column of the end section is finished, paving epoxy mortar at the top of the prefabricated pier column of the end section, and uniformly leveling through a pier top leveling device to form a pier top leveling layer; the pier top leveling device comprises an outer ring sliding rail sleeve and an inner ring sliding rail sleeve, anti-slip washers are arranged on the inner wall of the outer ring sliding rail sleeve and the outer wall of the inner ring sliding rail sleeve, a fan-shaped outer ring leveling plate is arranged in the wall of the outer ring sliding rail sleeve, and a fan-shaped inner ring leveling plate is arranged in the wall of the inner ring sliding rail sleeve.
Preferably, the precast capping beam is provided with an embedded grouting sleeve in the center, in the step S4, the precast capping beam is hoisted to the position right above the prefabricated pier column of the end section through hoisting equipment, and after the embedded grouting sleeve is aligned with the main rib of the precast pier, the precast capping beam is downwards arranged on the pier top leveling layer, and grouting work of the embedded grouting sleeve is completed.
As the preference, in step S5, connect the pier stud and rise the installation steel stull through supplementary wheelset cunning between, the tip of connecting the pier stud is equipped with the linkage segment steel pipe, every group steel stull all with linkage segment steel pipe welded connection, supplementary wheelset symmetry sets up in the side of two prefabricated bent cap, prefabricated bent cap is fixed with the connection diaphragm through anchor bolt, supplementary wheelset is provided with the slide cable through connecting bolt and connection diaphragm anchor respectively on the supplementary wheelset, slide cable one end is connected with the hoist engine subaerial, the other end passes through the lifting hook and links to each other with rings on the steel stull.
Preferably, in step S5, in the foundation leveling construction area, a gravel cushion layer is directly laid on the foundation, a mortar leveling layer is cast on the gravel cushion layer, and a steel cross brace is installed by setting up a full framing.
Prefabricated pier stud capping beams, obtainable by any of the methods described above.
The beneficial effects of the invention are as follows:
1) The invention realizes the high-efficiency connection technology of the prefabricated pier stud and the foundation. The prefabricated pier column can be quickly and stably connected with a cast-in-situ bearing platform provided with a bearing platform core column through a self shear groove, and can be quickly and stably connected with the prefabricated pipe pile through a connecting section steel pipe provided with an upper flange plate, so that the operation is simple, and the applicability is wide.
2) The invention provides a technical scheme for installing a steel cross brace for an auxiliary wheel set. By means of the prefabricated bent cap that has been installed and put in place as the platform, the combination adopts auxiliary wheelset, hoist engine and smooth rope, realizes the high-efficient installation of steel stull, and speed is controllable when installing, and construction safety is high, has solved the construction problem that the large-scale lifting device in some places can't enter the court.
3) The invention develops a cup mouth leveling device and a pier top leveling device. The on-site leveling operation of the leveling layer with high efficiency and high quality can be realized through the two leveling devices, the operation is convenient, the manufacturing cost is low, the repeated use is realized, and the economic benefit is very good.
Drawings
FIG. 1 is a schematic diagram of a prefabricated pier stud capping beam structure in accordance with the present invention;
FIG. 2 is a cross-sectional view of the structure of the cup opening leveling device in the invention;
FIG. 3 is a top view of the structure of the cup opening leveling device in the invention;
FIG. 4 is a schematic diagram of the connection of prefabricated pier studs and cast-in-situ platform in the present invention;
FIG. 5 is a schematic illustration of the connection of a prefabricated pier stud to a pile foundation in accordance with the present invention;
FIG. 6 is a schematic view of the construction of an auxiliary wheelset mounting steel cross brace in the present invention;
FIG. 7 is a schematic illustration of the attachment of an auxiliary wheelset to a precast cap beam in accordance with the present invention;
FIG. 8 is a schematic view of a full framing steel cross brace construction in accordance with the present invention;
FIG. 9 is a cross-sectional view of the construction of the pier top leveling apparatus of the present invention;
figure 10 is a top view of the pier top leveling apparatus of the present invention.
In the figure: 1-a support; 2-prefabricating a bent cap; 3-pier top leveling layer; 4-connecting pier columns; 5-upper flange plate; 6-post-pouring cup opening concrete; 7-cast-in-situ bearing platform; 8-pile foundation of the bearing platform; 9-steel cross braces; 10-grouting a sleeve; 11-end prefabricated pier stud; 12-a lower flange plate; 13-prefabricating pier columns in the first section; 14-bearing platform core columns; 15-a cup opening leveling layer; 16-a main adjusting lever; 17-diagonal braces; 18-an anti-skid base; 19-leveling the end plates; 20-a secondary telescopic rod; 21-shear grooves; 22-shear pins; 23-connecting section steel pipes; 24-pile end hoops; 25-prefabricating pier main ribs; 26-connecting a lock catch; 27-pile foundation main ribs; 28-pile foundation; 29-a slide cable; 30-a winch; 31-auxiliary wheel sets; 32-hanging rings; 33-lifting hook; 34-connecting bolts; 35-an anchor bolt; 36-connecting a transverse plate; 37-full framing; 38-mortar leveling layer; 39-a gravel pad; 40-outer ring leveling plate; 41-an outer ring slide rail sleeve; 42-inner ring leveling plates; 43-an inner ring slide rail sleeve; 44-non-slip washers.
Detailed Description
The invention is further described below with reference to examples. The following examples are presented only to aid in the understanding of the invention. It should be noted that it will be apparent to those skilled in the art that modifications can be made to the present invention without departing from the principles of the invention, and such modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Example 1
As an example, as shown in fig. 1 to 10, the construction method of the prefabricated pier stud capping beam comprises the following steps:
s1, construction of a cast-in-situ bearing platform: excavating foundation earthwork according to the coordinates of pile foundations 28, binding reinforcing steel bars of a bearing platform, reserving an annular post-pouring cup opening of the bearing platform, pouring concrete after supporting a steel template, dismantling the steel template after maintenance is finished to form a cast-in-situ bearing platform 7, paving epoxy mortar at the bottom of the cup opening of the cast-in-situ bearing platform 7, and leveling by using a cup opening leveling device to form a cup opening leveling layer 15;
s2, installing a first-section prefabricated pier stud: the first-section prefabricated pier column 13 is hung right above the cast-in-situ bearing platform 7 through a hoisting device, after the center of the first-section prefabricated pier column 13 is preliminarily aligned with the center of the core column of the cast-in-situ bearing platform 7, the first-section prefabricated pier column is slowly lowered until the core column 14 of the bearing platform is completely embedded into the prefabricated pier column, then, a post-pouring cup opening concrete 6 is poured in a reserved annular post-pouring cup opening, the installation operation of the first-section prefabricated pier column 13 is completed, and particularly, the cast-in-situ bearing platform 7 is not arranged at a local position, and the first-section prefabricated pier column 13 can be directly connected with a lower flange 12 arranged at the top of a pile foundation 28 through an upper flange 5 arranged at the tail end of the pier column;
s3, prefabricating pier stud lengthening construction: on the basis of the first-section prefabricated pier column 13, vertically lengthening to a designed elevation in a pile splicing mode, wherein all the prefabricated pier columns are connected in an anchoring mode by adopting an upper flange 5 and a lower flange 12, and a prefabricated pier main rib 25 is reserved at the top of the last-section prefabricated pier column 11;
construction of leveling layer of prefabricated pier column of end section: epoxy mortar is paved at the top of each prefabricated pier column 11, and unified leveling is carried out through a pier top leveling device, so that a pier top leveling layer 3 is formed;
s4, installing a prefabricated bent cap: the prefabricated capping beam 2 is hung to the position right above the prefabricated pier stud 11 of the end section through a hoisting device, after the pre-buried grouting sleeve 10 is aligned with the main rib 25 of the prefabricated pier of the end section, the prefabricated capping beam is slowly lowered and mounted on the pier top leveling layer 3, and grouting work of the pre-buried grouting sleeve 10 is completed within the working time of grouting materials;
s5, mounting a steel cross brace: the steel cross braces 9 are installed between the prefabricated pier columns in a sliding mode through the auxiliary wheel sets 31, each steel cross brace 9 is welded with the steel pipe 23 of the connecting section of the prefabricated pier column, in particular, in a foundation leveling construction area, a broken stone cushion layer 39 can be directly paved on a foundation, a mortar leveling layer 38 is poured, and the steel cross braces 9 are installed in a mode of building a full framing 37.
Example two
As another embodiment, the second embodiment proposes a more specific construction method of the prefabricated pier stud capping beam on the basis of the first embodiment,
in step S1, the pile foundation 28 cup mouth leveling device consists of a main adjusting rod 16, an auxiliary telescopic rod 20, inclined supporting rods 17, an anti-slip base 18 and leveling end plates 19, wherein the main adjusting rod 16 is in butt joint with the wall of the cup mouth of the cast-in-situ bearing platform 7 through the inclined supporting rods 17 at two sides, the anti-slip base 18 is arranged at the tail end of the inclined supporting rods 17, close to the cup mouth of the cast-in-situ bearing platform 7, the lower end of the main adjusting rod 16 is connected with the auxiliary telescopic rod 20, and the annular leveling end plates 19 are arranged on the auxiliary telescopic rod 20.
In step S2, a shear groove 21 is provided at the bottom of the first-section prefabricated pier column 13, a connecting section steel pipe 23 is further provided at the bottom of the first-section prefabricated pier column 13 directly connected with the pile foundation 28, shear nails 22 are provided on the inner wall of the connecting section steel pipe 23, and an upper flange 5 is provided at the end.
Pile foundation 28 top is provided with pile end staple bolt 24, and pile end staple bolt 24 is provided with lower ring flange 12, and lower ring flange 12 still is connected fixedly with pile foundation main muscle 27 through the internal connection fore shaft.
In step S3, the pier top leveling device mainly comprises an outer ring sliding rail sleeve 41 and an inner ring sliding rail sleeve 43, wherein anti-slip washers 44 are respectively arranged on the inner wall of the outer ring sliding rail sleeve 41 and the outer wall of the inner ring sliding rail sleeve 43, a fan-shaped outer ring leveling plate 40 is arranged in the wall of the outer ring sliding rail sleeve 41, a fan-shaped inner ring leveling plate 42 is arranged in the wall of the inner ring sliding rail sleeve 43, and the inner and outer leveling plates can move in the inner ring of the sliding rail.
In step S4, the auxiliary wheel sets 31 are symmetrically arranged at two sides of the prefabricated capping beam 2, and are respectively anchored with the connecting transverse plates 36 through the connecting bolts 34, the connecting transverse plates 36 are fixedly connected with the prefabricated capping beam 2 through the anchoring bolts 35, the auxiliary wheel sets 31 are provided with the sliding ropes 29, one ends of the sliding ropes 29 are connected with the ground winch 30, and the other ends of the sliding ropes 29 are connected with the hanging rings 32 on the steel transverse struts 9 through the hanging hooks 33.
It should be noted that, in this embodiment, the same or similar parts as those in the first embodiment may be referred to each other, and will not be described in detail in this application.
In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by a difference from other embodiments, and identical and similar parts between the embodiments are referred to each other.
Claims (10)
1. A prefabricated pier stud capping beam construction method is characterized in that: the method comprises the following steps:
s1, construction of a cast-in-situ bearing platform: pouring a cast-in-place bearing platform, reserving an annular post-pouring cup opening, paving epoxy mortar at the bottom of the annular post-pouring cup opening, and leveling by using a cup opening leveling device to form a cup opening leveling layer;
s2, installing a first-section prefabricated pier stud: the first section prefabricated pier stud is hung into a reserved annular post-pouring cup opening of the cast-in-situ bearing platform and post-pouring cup opening concrete is poured;
s3, prefabricating pier stud lengthening construction: connecting a plurality of long sections of connecting pier columns on the first section of prefabricated pier column in an anchoring mode of an upper flange plate and a lower flange plate, and reserving a prefabricated pier main rib at the top of the last section of prefabricated pier column;
s4, installing a prefabricated bent cap: hoisting the prefabricated capping beam to the position right above the prefabricated pier column of the end section, aligning the pre-buried grouting sleeve with the main rib of the prefabricated pier, and grouting the pre-buried grouting sleeve;
s5, mounting a steel cross brace: and steel cross braces are installed between the connecting pier columns through sliding lifting of the auxiliary wheel sets.
2. The prefabricated pier stud capping beam construction method according to claim 1, wherein in the step S1, foundation earthwork is excavated according to pile foundation coordinates, steel bars of a cast-in-situ bearing platform are bound, an annular post-pouring cup opening is reserved on the cast-in-situ bearing platform, concrete is poured after a steel template is supported, and the steel template is removed after maintenance is finished to form the cast-in-situ bearing platform; the cup mouth leveling device comprises a main adjusting rod, an auxiliary telescopic rod, inclined supporting rods, an anti-slip base and leveling end plates, wherein the main adjusting rod is in butt joint with the cup mouth wall of the cast-in-situ bearing platform through the inclined supporting rods on two sides, the anti-slip base is arranged at the tail end of the inclined supporting rod, which is close to the cup mouth of the cast-in-situ bearing platform, the lower end of the main adjusting rod is connected with the auxiliary telescopic rod, and the auxiliary telescopic rod is provided with the annular leveling end plates.
3. The prefabricated pier stud capping beam construction method according to claim 1, wherein a bearing platform core column is arranged in an annular post-pouring cup opening of the cast-in-situ bearing platform, in the step S2, the first-section prefabricated pier stud is hung to the position right above the cast-in-situ bearing platform through a hoisting device, after the center of the first-section prefabricated pier stud is initially aligned with the center of the cast-in-situ bearing platform core column, the first-section prefabricated pier stud is lowered until the bearing platform core column is completely embedded into the first-section prefabricated pier stud, and then concrete is poured into the reserved annular post-pouring cup opening, so that the first-section prefabricated pier stud installation operation is completed.
4. The construction method of the prefabricated pier stud bent cap according to claim 1, wherein in the step S2, when the first prefabricated pier stud is connected with the pile foundation, a lower flange is arranged at the top of the pile foundation, and the bottom of the first prefabricated pier stud is directly connected with the lower flange arranged at the top of the pile foundation through an upper flange; the bottom of the first-section prefabricated pier column is provided with a shear groove, the bottom of the first-section prefabricated pier column which is directly connected with the pile foundation is also provided with a connecting section steel pipe, the inner wall of the connecting section steel pipe is provided with a shear nail, and the lower end of the connecting section steel pipe is provided with an upper flange plate.
5. The prefabricated pier stud capping beam construction method according to claim 4, wherein in the step S2, a pile end hoop is arranged at the top of the pile foundation, a lower flange is arranged on the pile end hoop, and the bottom of the lower flange is fixedly connected with a pile foundation main rib of the pile foundation through a connecting lock catch.
6. The prefabricated pier column capping beam construction method according to claim 1, wherein after the construction of the terminal prefabricated pier column is finished, epoxy mortar is paved on the top of the terminal prefabricated pier column, and unified leveling is performed through a pier top leveling device to form a pier top leveling layer; the pier top leveling device comprises an outer ring sliding rail sleeve and an inner ring sliding rail sleeve, anti-slip washers are arranged on the inner wall of the outer ring sliding rail sleeve and the outer wall of the inner ring sliding rail sleeve, a fan-shaped outer ring leveling plate is arranged in the wall of the outer ring sliding rail sleeve, and a fan-shaped inner ring leveling plate is arranged in the wall of the inner ring sliding rail sleeve.
7. The prefabricated pier stud capping beam construction method according to claim 6, wherein the prefabricated capping beam is provided with a pre-buried grouting sleeve in the center, in the step S4, the prefabricated capping beam is hoisted to the position right above the prefabricated pier stud of the end section through hoisting equipment, the pre-buried grouting sleeve is aligned with the main rib of the prefabricated pier, and then the prefabricated pier stud is lowered and mounted on the pier top leveling layer, and grouting of the pre-buried grouting sleeve is completed.
8. The prefabricated pier stud bent cap construction method according to claim 1, wherein in the step S5, steel cross braces are installed between the connecting pier studs in a sliding mode through auxiliary wheel sets, connecting section steel pipes are arranged at the ends of the connecting pier studs, each steel cross brace is welded with the corresponding connecting section steel pipe, the auxiliary wheel sets are symmetrically arranged on the side edges of the two prefabricated bent caps, the prefabricated bent caps are fixedly provided with connecting cross plates through anchor bolts, the auxiliary wheel sets are respectively anchored with the connecting cross plates through the connecting bolts, sliding ropes are arranged on the auxiliary wheel sets, one ends of the sliding ropes are connected with windlass on the ground, and the other ends of the sliding ropes are connected with hanging rings on the steel cross braces through hanging hooks.
9. The method for constructing a capping beam for prefabricated pier columns according to claim 8, wherein in the step S5, in the area of the foundation leveling construction, a gravel cushion layer is directly laid on the foundation, a mortar leveling layer is cast on the gravel cushion layer, and a steel cross brace is installed by setting up a full framing.
10. Prefabricated pier stud capping beams, characterized in that they are obtained by the method according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311703975.6A CN117513173A (en) | 2023-12-12 | 2023-12-12 | Prefabricated pier stud capping beam construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311703975.6A CN117513173A (en) | 2023-12-12 | 2023-12-12 | Prefabricated pier stud capping beam construction method |
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| Publication Number | Publication Date |
|---|---|
| CN117513173A true CN117513173A (en) | 2024-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311703975.6A Pending CN117513173A (en) | 2023-12-12 | 2023-12-12 | Prefabricated pier stud capping beam construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117513173A (en) |
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2023
- 2023-12-12 CN CN202311703975.6A patent/CN117513173A/en active Pending
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