CN112095455B - Prefabricated assembled pier column and construction method - Google Patents
Prefabricated assembled pier column and construction method Download PDFInfo
- Publication number
- CN112095455B CN112095455B CN202011106460.4A CN202011106460A CN112095455B CN 112095455 B CN112095455 B CN 112095455B CN 202011106460 A CN202011106460 A CN 202011106460A CN 112095455 B CN112095455 B CN 112095455B
- Authority
- CN
- China
- Prior art keywords
- pier column
- concrete
- concrete pier
- longitudinal main
- prefabricated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010276 construction Methods 0.000 title claims abstract description 27
- 239000004567 concrete Substances 0.000 claims abstract description 114
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 76
- 239000010959 steel Substances 0.000 claims abstract description 76
- 230000002787 reinforcement Effects 0.000 claims abstract description 49
- 239000000463 material Substances 0.000 claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 claims description 16
- 238000009415 formwork Methods 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 4
- 230000035515 penetration Effects 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 3
- 239000004574 high-performance concrete Substances 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000011374 ultra-high-performance concrete Substances 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 2
- 238000009417 prefabrication Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 8
- 238000011065 in-situ storage Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 208000023504 respiratory system disease Diseases 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a prefabricated assembly pier column and a construction method, the prefabricated assembly pier column comprises a concrete pier column, the concrete pier column comprises an upper concrete pier column, a prefabricated steel component and a lower concrete pier column which are sequentially connected and poured into a whole, a plurality of reserved holes for allowing the ends of longitudinal main ribs of a reinforcement cage in the upper concrete pier column and the lower concrete pier column to penetrate through are uniformly distributed on the circumference of the upper end and the lower end of the prefabricated steel component, a base plate and a nut are sleeved on the ends of the longitudinal main ribs from inside to outside in sequence, grouting and pouring grouting materials are arranged between the prefabricated steel component and the upper concrete pier column and the lower concrete pier column, the prefabricated assembly pier column is connected with the steel component from bottom to top into a whole through the longitudinal main ribs, the prefabricated assembly pier column is integrated, the upper section pier column and the lower section pier column can be prefabricated in advance and produced in batches, the site assembly is simple and convenient, and the construction efficiency is improved.
Description
Technical Field
The invention relates to a prefabricated assembled pier column and a construction method.
Background
The construction mode of the pier columns at the lower part of the bridge at the present stage is mainly cast-in-situ, but the construction mode still has a little shortages, such as more working procedures, namely, binding of pier column steel bars, template installation and concrete pouring to maintenance, the minimum requirement is ten days, a large number of templates are needed, the concrete vibration is inconvenient, the field workload is large, and the construction progress cannot be ensured; the pier column concrete poured on site needs to be manually vibrated, the compactness is low, the impermeability is poor, pier column steel bars are easy to corrode, the thickness of a protective layer is not easy to control, and poor cast-in-situ quality can cause quality defects such as chromatic aberration, water ripple, honeycomb pitting surface, crack generation and the like of the appearance of the pier column; the site construction can produce noise pollution to the surrounding environment and further influence the normal life of the nearby residents, dust and dust emitted in the construction process can cause air pollution, the air visibility of cities is reduced, even the health of the residents is endangered, various common respiratory diseases are caused, a large amount of sewage and building rubbish are produced at the same time, and if the sewage and the building rubbish are not treated in time, the surface water quality and the soil are seriously influenced.
Aiming at various defects and shortcomings of the cast-in-situ pier column construction, the prefabricated pier column construction can effectively avoid most problems. Existing assembly bridge pier assembling modes comprise post-tensioned prestressing connection, grouting sleeve connection, friction self-locking connection, socket connection and the like. At present, the connection between pier columns mainly adopts a grouting sleeve connection mode, but the phenomena of non-compactness in grouting, leakage grouting, interception or dislocation of reinforcing steel bars and the like occur due to foreign matters in the sleeve or irregular operation in grouting in construction, so that the connection strength cannot be ensured, and finally the damage of pulling out and damaging the reinforcing steel bars, the damage of splitting and pulling out the grouting materials, the damage of pulling out the sleeve and the like are caused; in addition, the cost of the grouting sleeve is high, so that in the assembled building which is constructed by connecting a large number of grouting sleeves, the engineering cost is increased, so that in order to reduce the cost, part of projects have the bad phenomena of changing grouting material varieties in a stolen way, observing Kong Renwei the grouting material, replacing the high-price grouting sleeve with a low-price counterfeit product and the like, and further the constructed assembled building has quality hidden danger and even quality accidents; meanwhile, whether the sleeve grouting is full or not directly influences the shearing bearing capacity and the shock resistance of the structure, so that the grouting fullness is detected in order to ensure that the grouting compactness meets the standard requirement. However, the grouting sleeve structure is formed by alternating metal and nonmetal multilayer media, the radial thickness of a mortar body is very thin, most of the existing engineering detection methods cannot effectively detect the mortar body, so that in actual construction, the filling degree of grouting materials in the sleeve and the grouting quality are often judged by detection means such as experience, ultrasound and rays, the experience judgment has certain limitations, the ultrasound detection is easily limited by a detection interface, the position arrangement requirement of a measuring point is high, the precision is difficult to reach the detection requirement, the radiation detection has the radiation safety requirement on site, the detection cost is high, and the comprehensive development is difficult, so that the current grouting fullness detection method has great limitations, and the connection safety and reliability of assembled building components are seriously affected.
Disclosure of Invention
In order to meet the requirements of bridge industrialization on standardization, production efficiency, construction rapidness and the like of prefabricated components, the invention provides a prefabricated assembly pier stud with main ribs connected through steel components and a construction method thereof.
The prefabricated assembly pier column comprises a concrete pier column, wherein the concrete pier column comprises an upper concrete pier column, a prefabricated steel component and a lower concrete pier column which are sequentially connected and poured into a whole, a plurality of reserved holes for allowing the ends of longitudinal main ribs of reinforcement cages in the upper concrete pier column and the lower concrete pier column to penetrate through are uniformly distributed on the circumference of the upper end and the lower end of the prefabricated steel component, a base plate and a nut are sleeved on the ends of the longitudinal main ribs from inside to outside, the ends of the longitudinal main ribs are anchored on the prefabricated steel component through the nuts, and grouting materials are poured between the prefabricated steel component and the upper concrete pier column and the lower concrete pier column in a grouting mode.
Further, the prefabricated steel member is connected and comprises two end plates with the central lines collinear and arranged at an upper and lower interval, the reserved holes are formed in the end plates, the outer ends of the upper end plate and the lower end plate are connected through radial connecting vertical plates uniformly distributed on a plurality of circumferences, and the radial connecting vertical plates are arranged in a staggered mode with the reserved holes.
Further, the middle parts of the upper end plate and the lower end plate are connected with the inner stiffening ring which is collinear with the central line of the upper end plate and the lower end plate, and the inner stiffening ring is radially connected with the connecting inner stiffening ring in the vertical plate.
Further, the longitudinal main ribs in the upper concrete pier column and the longitudinal main ribs in the lower concrete pier column are arranged in one-to-one correspondence, and the reserved holes in the upper end plate and the lower end plate are arranged in one-to-one correspondence.
Further, the length of the steel bars of the longitudinal main bars extending into the steel member end plates is not more than half the height of the radial connecting vertical plates and is not less than the sum of the thicknesses of the steel member end plates, the backing plates and the nuts.
Further, the clear distance from the outer edge of the prefabricated steel component to the outer edge of the concrete pier stud is not less than 40mm.
Further, the longitudinal main bars are finish-rolled deformed bars.
Further, the grouting material is high-strength grouting concrete, common concrete, high-performance concrete, ultra-high-performance concrete or steel fiber concrete.
A construction method for prefabricating and assembling pier columns comprises the following steps:
(1) Machining a prefabricated steel component: manufacturing radial connecting risers and end plates according to design dimensions, arranging reserved holes in positions, corresponding to longitudinal main ribs, on the end plates, arranging the radial connecting risers among the reserved holes, uniformly arranging the radial connecting risers along the radial direction of the end plates and around the end plates, and performing penetration welding on the connecting risers and the end plates to form steel members;
(2) Manufacturing a lower concrete pier column reinforcement cage: the longitudinal main reinforcement penetrates through the end plate at the lower end of the steel member to a designed extension length, the backing plate and the nuts are screwed into the end parts of the longitudinal main reinforcement in sequence, the longitudinal main reinforcement and the end plate at the lower end of the steel member are fastened together, and the circumferential stirrup is bound on the outer side of the longitudinal main reinforcement to form a lower concrete pier column reinforcement cage;
(4) And (3) manufacturing an upper concrete pier column reinforcement cage: installing a longitudinal main reinforcement of the upper concrete pier column on a positioning die, temporarily reinforcing the end part of the longitudinal main reinforcement and a steel plate die with a reserved hole, and binding a circumferential stirrup on the outer side of the longitudinal main reinforcement to form an upper concrete pier column reinforcement cage;
(5) And (3) manufacturing a concrete pier column lower section: erecting a reinforcement cage of the lower concrete pier column from the plane, supporting a mould according to the size of the prefabricated pier column, pouring concrete, curing, and removing the mould after the strength of the concrete reaches the strength of removing the mould;
(6) And (3) manufacturing the upper section of the concrete pier column: erecting an upper concrete pier column reinforcement cage from the plane, supporting a mould according to the size of the prefabricated pier column, pouring concrete, curing, and removing the mould after the concrete strength reaches the mould removing strength;
(7) And (3) constructing a concrete pier column lower section: transporting the prefabricated concrete pier column to a construction site, and pouring and forming the lower section of the concrete pier column and a bearing platform through vertical reinforcement connection;
(8) And (3) segment assembly: extending a longitudinal main rib of an upper section of the concrete pier column into a reserved hole on an end plate of the upper end of a steel member of a lower section of the concrete pier column, screwing a backing plate and a nut into the end part of the longitudinal main rib in sequence, and ensuring that the longitudinal main rib and the steel member are fastened together;
(9) Closing the steel member: and (3) supporting the formwork according to the size of the steel member, performing sealing operation and maintenance of high-strength grouting material, and removing the formwork after the strength of the grouting material reaches the strength of removing the formwork, so that the concrete pier is connected into a whole from bottom to top, and the construction of the prefabricated pier is completed.
Compared with the prior art, the invention has the following beneficial effects: the structure is simple, the design is reasonable, the connection between pier column sections is effectively solved by connecting the longitudinal main ribs with the steel members from bottom to top into a whole, the problems that the quality of a grouting sleeve is not easy to control, the grouting sleeve is not easy to check and the like are avoided, the stress transmission between pier columns is more reasonable, the assembly type pier column integration is realized, the integral stress performance and the earthquake resistance of the assembly type pier column are ensured, the pier columns of the upper section and the lower section can be prefabricated in advance in factories and produced in batches, only a small amount of anchoring connection and high-strength grouting material cast-in-situ work are needed on site, and the site assembly construction is simple and convenient, thereby the construction efficiency is improved.
Drawings
The patent of the invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic longitudinal section of a prefabricated assembled pier stud;
FIG. 2 is a schematic vertical section of a prefabricated steel component without an inner stiffening ring;
FIG. 3 is a schematic cross-sectional view of a prefabricated steel component without an inner stiffening ring;
FIG. 4 is a schematic vertical section of a prefabricated steel component provided with an inner stiffening ring;
FIG. 5 is a schematic cross-sectional view of a prefabricated steel component provided with an inner stiffening ring.
In the figure: 1-lower concrete pier column; 2-mounting a concrete pier column; 3-longitudinal main ribs; 4-hoop stirrups; 5-prefabricating a steel member; 6-end plates; 7-radial connection risers; 8-grouting material; 9-cast-in-place concrete; 10-bearing platform; 11-preformed holes; 12-backing plate; 13-high-strength nuts; 14-inner stiffening rings.
Detailed Description
The invention is further described below with reference to the drawings and the detailed description.
As shown in fig. 1-5, a prefabricated assembly pier stud comprises a concrete pier stud, wherein the concrete pier stud comprises an upper concrete pier stud 2, a prefabricated steel member 5 and a lower concrete pier stud 1 which are sequentially connected and poured into a whole, a plurality of reserved holes 11 for allowing the ends of longitudinal main ribs 3 of a reinforcement cage in the upper concrete pier stud and the lower concrete pier stud to penetrate through are uniformly distributed on the circumference of the upper end and the lower end of the prefabricated steel member, a base plate 12 and a nut 13 are sleeved on the ends of the longitudinal main ribs from inside to outside in sequence, the ends of the longitudinal main ribs are anchored on the prefabricated steel member through the nut, and grouting and pouring slurry 8 is arranged between the prefabricated steel member and the upper concrete pier stud and the lower concrete pier stud.
In this embodiment, cast-in-place concrete 9 is poured around the periphery of the prefabricated steel parts.
In this embodiment, the steel reinforcement cage includes a plurality of vertical main muscle of circumference equipartition, and the steel reinforcement cage is provided with a plurality of hoop stirrups 4 from top to bottom outside the interval, and hoop stirrups cover is established on the steel reinforcement cage, and hoop stirrups are fixed with vertical main muscle ligature.
In this embodiment, the prefabricated steel member is connected and includes two end plates 6 that central line collineation and upper and lower interval set up, and the preformed hole sets up at the end plate, is connected through the radial connection riser 7 of a plurality of circumference equipartitions between two upper and lower end plate outer ends, and radial connection riser and preformed hole are crisscross to be set up.
In this embodiment, the middle parts of the upper and lower end plates are connected via inner stiffening rings 14 collinear with the center lines thereof, and radially connect the connecting inner stiffening rings in the risers.
In this embodiment, the cross-sectional shape of the end plate may be circular, square, or rectangular, the inner stiffening ring is a steel pipe or a steel box surrounded by steel plates, the end plate is welded with the radial connecting riser, and the end plate and the radial connecting riser are welded with the inner stiffening ring, and the welding adopts a penetration welding manner.
In this embodiment, the longitudinal main ribs in the upper concrete pier column and the longitudinal main ribs in the lower concrete pier column are arranged in one-to-one correspondence, and the reserved holes on the upper end plate and the lower end plate are arranged in one-to-one correspondence.
In this embodiment, the length of the reinforcing bars of the longitudinal main bars extending into the steel member end plates is not more than half the height of the radial connection risers, and is not less than the sum of the thicknesses of the steel member end plates, the backing plates and the nuts.
In this embodiment, the clearance between the outer edge of the prefabricated steel component and the outer edge of the concrete pier stud is not less than 40mm.
In this embodiment, the longitudinal main bars are finish rolled deformed bars.
In this embodiment, the grouting material is high-strength grouting concrete, common concrete, high-performance concrete, ultra-high-performance concrete or steel fiber concrete.
A construction method for prefabricating and assembling pier columns comprises the following steps:
(1) Machining a prefabricated steel component: manufacturing radial connecting risers and end plates according to design dimensions, arranging reserved holes in positions, corresponding to longitudinal main ribs, on the end plates, arranging the radial connecting risers among the reserved holes, uniformly arranging the radial connecting risers along the radial direction of the end plates and around the end plates, and performing penetration welding on the connecting risers and the end plates to form steel members;
(2) Manufacturing a lower concrete pier column reinforcement cage: the longitudinal main reinforcement penetrates through the end plate at the lower end of the steel member to a designed extension length, the backing plate and the nuts are screwed into the end parts of the longitudinal main reinforcement in sequence, the longitudinal main reinforcement and the end plate at the lower end of the steel member are fastened together, and the circumferential stirrup is bound on the outer side of the longitudinal main reinforcement to form a lower concrete pier column reinforcement cage;
(4) And (3) manufacturing an upper concrete pier column reinforcement cage: installing a longitudinal main reinforcement of the upper concrete pier column on a positioning die, temporarily reinforcing the end part of the longitudinal main reinforcement and a steel plate die with a reserved hole, and binding a circumferential stirrup on the outer side of the longitudinal main reinforcement to form an upper concrete pier column reinforcement cage;
(5) And (3) manufacturing a concrete pier column lower section: erecting a reinforcement cage of the lower concrete pier column from the plane, supporting a mould according to the size of the prefabricated pier column, pouring concrete, curing, and removing the mould after the strength of the concrete reaches the strength of removing the mould;
(6) And (3) manufacturing the upper section of the concrete pier column: erecting an upper concrete pier column reinforcement cage from the plane, supporting a mould according to the size of the prefabricated pier column, pouring concrete, curing, and removing the mould after the concrete strength reaches the mould removing strength;
(7) And (3) constructing a concrete pier column lower section: transporting the prefabricated concrete pier column to a construction site, and pouring and forming the lower section of the concrete pier column and the bearing platform 10 through vertical reinforcement connection;
(8) And (3) segment assembly: extending a longitudinal main rib of an upper section of the concrete pier column into a reserved hole on an end plate of the upper end of a steel member of a lower section of the concrete pier column, screwing a backing plate and a nut into the end part of the longitudinal main rib in sequence, and ensuring that the longitudinal main rib and the steel member are fastened together;
(9) Closing the steel member: and (3) supporting the formwork according to the size of the steel member, performing sealing operation and maintenance of high-strength grouting material, and removing the formwork after the strength of the grouting material reaches the strength of removing the formwork, so that the concrete pier is connected into a whole from bottom to top, and the construction of the prefabricated pier is completed.
In the step (1), an inner stiffening ring can be arranged in the radial connecting vertical plate, so that the central lines of the inner stiffening ring and the end plate are collinear, and the inner stiffening ring and the end plate are welded.
If this patent discloses or relates to components or structures that are fixedly connected to each other, then unless otherwise stated, the fixed connection is understood as: a detachable fixed connection (e.g. using a bolt or screw connection) can also be understood as: the non-detachable fixed connection (e.g. riveting, welding), of course, the mutual fixed connection may also be replaced by an integral structure (e.g. integrally formed using a casting process) (except for obviously being unable to use an integral forming process).
In the description of this patent, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate describing the patent, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the patent.
While the foregoing is directed to the preferred embodiment, other and further embodiments of the invention will be apparent to those skilled in the art from the following description, wherein the invention is described, by way of illustration and example only, and it is intended that the invention not be limited to the specific embodiments illustrated and described, but that the invention is to be limited to the specific embodiments illustrated and described.
Claims (2)
1. The utility model provides a pier stud is assembled in prefabrication, includes concrete pier stud, its characterized in that: the concrete pier column comprises an upper concrete pier column, a precast steel member and a lower concrete pier column which are sequentially connected and poured into a whole, wherein a plurality of reserved holes for allowing the ends of longitudinal main ribs of a reinforcement cage in the upper concrete pier column and the lower concrete pier column to penetrate through are uniformly distributed on the circumference of the upper end and the lower end of the precast steel member, a base plate and a nut are sleeved on the ends of the longitudinal main ribs from inside to outside, the ends of the longitudinal main ribs are anchored on the precast steel member through the nut, and grouting and pouring slurry are arranged between the precast steel member and the upper concrete pier column and the lower concrete pier column; the prefabricated steel member is connected with two end plates, the center lines of the two end plates are collinear, the two end plates are arranged up and down at intervals, the reserved holes are formed in the end plates, the outer ends of the upper end plate and the lower end plate are connected through a plurality of radial connecting vertical plates uniformly distributed on the circumference, and the radial connecting vertical plates are staggered with the reserved holes; the middle parts of the upper end plate and the lower end plate are connected with an inner stiffening ring which is collinear with the central line of the upper end plate and the lower end plate, and are radially connected with the connecting inner stiffening ring in the vertical plate; the longitudinal main ribs in the upper concrete pier column and the longitudinal main ribs in the lower concrete pier column are arranged in one-to-one correspondence, and the reserved holes in the upper end plate and the lower end plate are arranged in one-to-one correspondence; the length of the steel bars of the longitudinal main bars extending into the steel member end plates is not more than half of the height of the radial connecting vertical plates and is not less than the sum of the thicknesses of the steel member end plates, the backing plates and the nuts; the clear distance from the outer edge of the prefabricated steel component to the outer edge of the concrete pier column is not less than 40mm; the longitudinal main bars are finish-rolled deformed bars; the grouting material is high-strength grouting concrete, common concrete, high-performance concrete, ultra-high-performance concrete or steel fiber concrete.
2. A construction method for prefabricating and assembling pier stud, which adopts the prefabricating and assembling pier stud according to claim 1, and is characterized by comprising the following steps:
(1) Machining a prefabricated steel component: manufacturing radial connecting risers and end plates according to design dimensions, arranging reserved holes in positions, corresponding to longitudinal main ribs, on the end plates, arranging the radial connecting risers among the reserved holes, uniformly arranging the radial connecting risers along the radial direction of the end plates and around the end plates, and performing penetration welding on the connecting risers and the end plates to form steel members;
(2) Manufacturing a lower concrete pier column reinforcement cage: the longitudinal main reinforcement penetrates through the end plate at the lower end of the steel member to a designed extension length, the backing plate and the nuts are screwed into the end parts of the longitudinal main reinforcement in sequence, the longitudinal main reinforcement and the end plate at the lower end of the steel member are fastened together, and the circumferential stirrup is bound on the outer side of the longitudinal main reinforcement to form a lower concrete pier column reinforcement cage;
(4) And (3) manufacturing an upper concrete pier column reinforcement cage: installing a longitudinal main reinforcement of the upper concrete pier column on a positioning die, temporarily reinforcing the end part of the longitudinal main reinforcement and a steel plate die with a reserved hole, and binding a circumferential stirrup on the outer side of the longitudinal main reinforcement to form an upper concrete pier column reinforcement cage;
(5) And (3) manufacturing a concrete pier column lower section: erecting a reinforcement cage of the lower concrete pier column from the plane, supporting a mould according to the size of the prefabricated pier column, pouring concrete, curing, and removing the mould after the strength of the concrete reaches the strength of removing the mould;
(6) And (3) manufacturing the upper section of the concrete pier column: erecting an upper concrete pier column reinforcement cage from the plane, supporting a mould according to the size of the prefabricated pier column, pouring concrete, curing, and removing the mould after the concrete strength reaches the mould removing strength;
(7) And (3) constructing a concrete pier column lower section: transporting the prefabricated concrete pier column to a construction site, and pouring and forming the lower section of the concrete pier column and a bearing platform through vertical reinforcement connection;
(8) And (3) segment assembly: extending a longitudinal main rib of an upper section of the concrete pier column into a reserved hole on an end plate of the upper end of a steel member of a lower section of the concrete pier column, screwing a backing plate and a nut into the end part of the longitudinal main rib in sequence, and ensuring that the longitudinal main rib and the steel member are fastened together;
(9) Closing the steel member: and (3) supporting the formwork according to the size of the steel member, performing sealing operation and maintenance of high-strength grouting material, and removing the formwork after the strength of the grouting material reaches the strength of removing the formwork, so that the concrete pier is connected into a whole from bottom to top, and the construction of the prefabricated pier is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011106460.4A CN112095455B (en) | 2020-10-16 | 2020-10-16 | Prefabricated assembled pier column and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011106460.4A CN112095455B (en) | 2020-10-16 | 2020-10-16 | Prefabricated assembled pier column and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112095455A CN112095455A (en) | 2020-12-18 |
| CN112095455B true CN112095455B (en) | 2024-06-07 |
Family
ID=73784267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011106460.4A Active CN112095455B (en) | 2020-10-16 | 2020-10-16 | Prefabricated assembled pier column and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112095455B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114892507A (en) * | 2022-05-27 | 2022-08-12 | 广州市市政工程设计研究总院有限公司 | Prefabricated and assembled landscape pier stud and construction method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104746422A (en) * | 2014-09-19 | 2015-07-01 | 杭州江润科技有限公司 | Bridge prefabricated hollow pier column post-poured connecting structure and construction method |
| CN108755392A (en) * | 2018-05-24 | 2018-11-06 | 威海市公路勘察设计院 | Precast assembly bridge pier grouting joint construction and construction method |
| CN110387826A (en) * | 2019-07-24 | 2019-10-29 | 西南交通大学 | A kind of precast segment assembly bridge pier steel member and construction method and application |
| DE202020103270U1 (en) * | 2019-07-03 | 2020-06-24 | BEIJING-Harbin Railway Passenger Dedicated Line beijing-hebei Co., Ltd. | Prefabricated assembled structure for assembled high speed railway bridges |
| CN213571513U (en) * | 2020-10-16 | 2021-06-29 | 福州大学 | Prefabricated assembling pier column |
-
2020
- 2020-10-16 CN CN202011106460.4A patent/CN112095455B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104746422A (en) * | 2014-09-19 | 2015-07-01 | 杭州江润科技有限公司 | Bridge prefabricated hollow pier column post-poured connecting structure and construction method |
| CN108755392A (en) * | 2018-05-24 | 2018-11-06 | 威海市公路勘察设计院 | Precast assembly bridge pier grouting joint construction and construction method |
| DE202020103270U1 (en) * | 2019-07-03 | 2020-06-24 | BEIJING-Harbin Railway Passenger Dedicated Line beijing-hebei Co., Ltd. | Prefabricated assembled structure for assembled high speed railway bridges |
| CN110387826A (en) * | 2019-07-24 | 2019-10-29 | 西南交通大学 | A kind of precast segment assembly bridge pier steel member and construction method and application |
| CN213571513U (en) * | 2020-10-16 | 2021-06-29 | 福州大学 | Prefabricated assembling pier column |
Non-Patent Citations (1)
| Title |
|---|
| 装配式钢－ＵＨＰＣ组合桥面板试设计及性能研究;赵秋等;桥梁建设;20180228;第48卷(第1期);第94-99页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112095455A (en) | 2020-12-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112012340B (en) | Suspension connection node for large-span cantilever steel truss and construction method thereof | |
| CN107060140B (en) | Prefabricated double-steel-tube concrete shear wall and assembling method thereof | |
| CN104612037B (en) | Flange-connecting concrete-filled double-wall steel pipe prefabricated assembly piers with additional energy-consuming steel bars | |
| CN110056085A (en) | Can quick assembling FRP profile bean column node | |
| CN112323986B (en) | Connection and construction process of prefabricated steel pipe concrete column and sandwich concrete composite slab | |
| CN115467421B (en) | Hoisting construction method for complex large-span steel roof | |
| CN111676993A (en) | Special construction method for constructing basement foundation by inserting steel structure | |
| CN112095455B (en) | Prefabricated assembled pier column and construction method | |
| CN112323985A (en) | Prefabricated reinforced concrete column and composite board node and construction process | |
| CN106836645B (en) | Thin wall concrete column in prefabricated cavity formula | |
| CN111335464A (en) | Fabricated concrete structure beam column connecting node and construction method thereof | |
| CN112323987B (en) | Prefabricated stiffened steel pipe concrete column and profiled steel sheet combined plate joint and construction process | |
| CN213571513U (en) | Prefabricated assembling pier column | |
| CN213508013U (en) | Main reinforcement is through prefabricated pier column of assembling of steel column welded connection | |
| CN214460442U (en) | Pre-tensioning precast concrete supporting member and inner supporting system | |
| CN112095454B (en) | Prefabricated assembled pier column with main ribs welded through steel columns and construction method thereof | |
| KR20110049811A (en) | Installation method of equipment and anchor member supporting mechanism and anchor bolt unit | |
| CN213390765U (en) | Prefabricated assembled integrated floor combined structure | |
| CN209780036U (en) | Rectangular column of foundation layer of prefabricated building and prefabricated building | |
| CN111139948A (en) | Assembled steel pipe concrete friction pendulum shock insulation pier stud | |
| CN112112180A (en) | Connecting system of assembled combined pier and bearing platform and construction method thereof | |
| CN209779668U (en) | Two unification pile foundations of heliostat stand and basis | |
| CN111660427B (en) | Core die vibrating double-rubber-ring steel bell and spigot reinforcement cage assembling die | |
| CN115162520B (en) | Construction method of lotus tower steel structure | |
| CN215290759U (en) | Prefabricated wall body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |