CN111764505A - Connecting structure of concrete precast beam and cast-in-place column and construction method thereof - Google Patents
Connecting structure of concrete precast beam and cast-in-place column and construction method thereof Download PDFInfo
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- CN111764505A CN111764505A CN202010598067.5A CN202010598067A CN111764505A CN 111764505 A CN111764505 A CN 111764505A CN 202010598067 A CN202010598067 A CN 202010598067A CN 111764505 A CN111764505 A CN 111764505A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
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Abstract
The invention discloses a connecting structure of a concrete precast beam and a cast-in-place column and a construction method thereof, wherein the connecting structure comprises the following steps: the cast-in-place column comprises a cast-in-place column and column longitudinal steel bars arranged above the cast-in-place column, wherein the column longitudinal steel bars extend into the cast-in-place column and are fixedly connected with the cast-in-place column; the prefabricated beam is arranged above the cast-in-place columns, the number of the cast-in-place columns is two, two sides of the prefabricated beam are respectively attached to the two cast-in-place columns, ring buckle-shaped U-shaped steel bars are arranged on two sides of the prefabricated beam, and the ring buckle-shaped U-shaped steel bars extend to the interior of the prefabricated beam and are fixedly connected with the prefabricated beam. The problem of current connection structure and the connected mode of precast beam and cast-in-place post all have the site to assemble the construction complicacy when precast concrete mixed concrete structure erection joint is solved.
Description
Technical Field
The invention relates to the technical field of construction engineering, in particular to a connecting structure of a concrete precast beam and a cast-in-place column and a construction method thereof.
Background
A prefabricated beam is prefabricated in factory, and then is transported to construction site to be installed and fixed according to design requirement, before the continuous part of approach bridge is erected, a permanent support is firstly installed, then a temporary support and a pier top cast-in-place section bottom die are placed, after the beam body is erected, the pier top continuous section concrete is poured, then hogging moment beam tensioning construction is carried out, the temporary support is dismantled to form a continuous system, the cast-in-place column is a column made of reinforced concrete material, is the most basic bearing member in various engineering structures such as house, bridge and water, is commonly used as a compression bar of a column, a pier, a foundation column, a tower and a truss of a floor system, and is divided into a cast-in-place column and a prefabricated column according to the manufacturing and construction methods, the cast-in-place reinforced concrete column has good integrity, but the formwork supporting workload is large, the construction of the prefabricated reinforced concrete column is convenient, but the joint connection quality, The cast-in-place reinforced concrete column has good integrity, but large formwork work load, and the construction of the prefabricated reinforced concrete column is more convenient, but the joint connection quality is ensured.
The steel reinforced concrete column is divided into a common steel hoop column, a spiral steel hoop column and a stiff steel column according to a reinforcement mode, the common steel hoop column is suitable for columns with various section shapes and is of a basic and main type, the common steel hoop is used for restraining transverse displacement of longitudinal steel bars, the spiral steel hoop column can improve the bearing capacity of a component, the column bearing surface is generally circular or polygonal, a prefabricated concrete structure has the advantages of easy quality control, high construction speed, improvement of construction site environment, capability of enabling concrete to achieve higher strength so as to reduce the self weight of the structure and the like, the development of the prefabricated concrete structure conforms to the current national conditions of China, the section steel concrete structure is a main form of a steel-concrete combined structure, and the steel reinforced concrete column has the advantages of high bearing capacity, high rigidity, good earthquake resistance and the like and is increasingly applied to high-rise buildings and super high-rise buildings in large-span structures and earthquake regions, the existing connecting structure and connecting mode of the precast beam and the cast-in-place column have the problem of complicated field assembling construction when the precast concrete mixed concrete structure is assembled and connected.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.
The invention also aims to provide a connecting structure of the concrete precast beam and the cast-in-place column and a construction method thereof, which can effectively solve the problem that the quality of the connecting structure of the concrete precast beam and the cast-in-place column is difficult to ensure.
In order to achieve the above objects and other objects, the present invention adopts the following technical solutions:
a connection structure of precast concrete roof beam and cast-in-place post includes:
the cast-in-place column comprises a cast-in-place column and column longitudinal steel bars arranged above the cast-in-place column, wherein the column longitudinal steel bars extend into the cast-in-place column and are fixedly connected with the cast-in-place column;
the prefabricated beam is arranged above the cast-in-place columns, the number of the cast-in-place columns is two, two sides of the prefabricated beam are respectively attached to the two cast-in-place columns, ring buckle-shaped U-shaped steel bars are arranged on two sides of the prefabricated beam, and the ring buckle-shaped U-shaped steel bars extend to the interior of the prefabricated beam and are fixedly connected with the prefabricated beam.
Preferably, the vertical reinforcing bar of post is provided with four, the buckle form U shaped steel muscle is provided with two, and four the vertical reinforcing bar of post is respectively with the both sides and the buckle form U shaped steel muscle fixed connection of two buckle form U shaped steel muscle of card income.
Preferably, a placing short platform is installed on one side of the cast-in-place column, the placing short platform and the cast-in-place column are integrated, a limiting plate is installed below the precast beam, and the limiting plate and the precast beam are integrated.
Preferably, the distance between the two cast-in-place columns is the same as the length of the limiting plate, the distance between the shelving short platform and the top end of the cast-in-place column is the same as the height of the limiting plate, and the side face of the limiting plate is clamped into the upper end face of the shelving short platform and clamped with the shelving short platform.
Preferably, the outer surface of the limiting plate is provided with a beam connecting steel plate, the beam connecting steel plate is fixedly connected with the limiting plate, the outer surface of the shelving short platform is provided with a column connecting steel plate, the column connecting steel plate is fixedly connected with the shelving short platform, and the column connecting steel plate is welded with the beam connecting steel plate.
Preferably, a plurality of third stirrups and a plurality of fifth stirrups are respectively installed on two sides of the interior of the cast-in-place column, the plurality of third stirrups are clamped with the exterior of the column longitudinal steel bar, additional bars are installed inside the fifth stirrups, fourth stirrups are installed inside the shelving short platform, the plurality of fourth stirrups are arranged, the plurality of fourth stirrups are fixedly connected with the additional bars through clamping grooves, reinforcing ribs are arranged inside the fourth stirrups, the three reinforcing ribs are fixedly connected with the fourth stirrups through clamping grooves, sixth stirrups are installed at the lower ends of the column longitudinal steel bar and the additional bars, the plurality of sixth stirrups are fixedly connected with the column longitudinal steel bar and the additional bars through clamping grooves, and reinforcing steel bars are installed on two sides of the interior of the sixth stirrups, the reinforcing steel bars are fixedly connected with the sixth stirrups through clamping grooves.
Preferably, first stirrups are installed to cast-in-place post's inside both sides all, first stirrups pass through draw-in groove fixed connection with two buckle form U shaped steel respectively, two the second stirrups are installed to the centre of buckle form U shaped steel, second stirrups passes through draw-in groove fixed connection with buckle form U shaped steel.
The construction method of the connecting structure of the concrete precast beam and the cast-in-place column comprises the following steps:
the method comprises the following steps: after the two cast-in-place columns are fixed with the plate or the foundation, processing a precast beam according to the distance position of the two cast-in-place columns, and hoisting and placing the precast beam above the cast-in-place columns;
step two: sleeving the ring-buckle U-shaped steel bars on two sides of the precast beam outside the column longitudinal steel bars at the upper end of the cast-in-place column respectively, and clamping the four column longitudinal steel bars into two sides of the ring-buckle U-shaped steel bars for fixing;
step three: and the limiting plate below the precast beam is clamped into the placing short platform on the inner side of the cast-in-place column, and after the limiting plate and the placing short platform are aligned, the connecting seam between the beam connecting steel plate and the column connecting steel plate can be welded.
Preferably, in the second step, the lower end of the first stirrup extending outwards from the bottom of the precast beam directly extends into the node core area of the upper end surface of the cast-in-place column to be anchored, and the end part of the anchoring steel bar is bent to form a hook or an anchoring end is additionally arranged at the end part of the steel bar to ensure the anchoring quality and reduce the anchoring length.
Preferably, in the third step, the laying short platform extends out of bolts or steel bars and is inserted into the pin bolt holes at the lower end inside the limiting plate to perform limiting and fixing work.
The invention at least comprises the following beneficial effects:
1. the invention has the advantages that the fixing mode of fixing and installing the cast-in-place column and the precast beam is convenient to simplify through the arranged limiting plate and the laying short platform, when the cast-in-place column and the precast beam are required to be connected, the precast beam is processed according to the distance position of the two cast-in-place columns after the two cast-in-place columns are fixed with the plate or the foundation, the precast beam is hoisted and arranged above the cast-in-place columns, the ring buckle-shaped U-shaped steel bars at the two sides of the precast beam are respectively sleeved outside the column longitudinal steel bars at the upper end of the cast-in-place column, the four column longitudinal steel bars are all clamped into the two sides of the ring buckle-shaped U-shaped steel bars for fixing, finally the limiting plate below the precast beam is clamped into the laying short platform at the inner side of the cast-in-place column, the connecting steel plate and the connecting steel plate of, the working method is simple, the limiting performance is high, the fixing effect is better, a large amount of fixation between the reinforcing steel bars is not needed, the working strength is effectively reduced, and the working efficiency is improved.
2. The invention effectively solves the problem that the quality of the connecting structure of the concrete precast beam and the cast-in-place column is difficult to ensure through the plurality of stirrups arranged inside the cast-in-place column and the precast beam, the outer parts of the column longitudinal steel bars are all clamped with the third stirrups, four column longitudinal steel bars are fixed through the third stirrups, then the snap ring below the column longitudinal steel bars is tightly clamped with the reinforcing steel bars and the sixth stirrups, so that the position of the column longitudinal steel bars is kept stable, the strength is improved, when the column longitudinal steel bars are connected with the ring buckle-shaped U-shaped steel bars, enough strength can be kept for limiting, the fixing effect is improved, the first stirrups inside the precast beam are clamped with the two ring buckle-shaped U-shaped steel bars, and the plurality of first stirrups extend to the outer parts of the precast beam, the fixing effect is improved, the strength of the two ring buckle-shaped U-shaped steel bars is improved, and the connecting strength is further improved, and the reinforcing rib, the fourth stirrup and the additional rib in the short shelving platform are mutually matched and clamped, so that the supporting strength of the short shelving platform is improved, and the strength of the connecting structure is effectively improved.
Drawings
FIG. 1 is a schematic structural diagram of a connection structure of a precast concrete beam and a cast-in-place column provided by the invention;
FIG. 2 is a top view of a cast-in-place pole provided by the present invention;
FIG. 3 is an internal structure view of a precast beam and a cast-in-place column provided by the present invention;
FIG. 4 is an overall schematic view of a precast beam provided by the present invention;
fig. 5 is an overall schematic view of the resting short platform provided by the present invention.
Detailed Description
The present invention is described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description.
As shown in fig. 1 to 5, a connecting structure of a precast concrete beam and a cast-in-place column includes: the cast-in-place column comprises a cast-in-place column 1 and column longitudinal steel bars 7 arranged above the cast-in-place column 1, wherein the column longitudinal steel bars 7 extend into the cast-in-place column 1 and are fixedly connected with the cast-in-place column 1; the prefabricated beam 2 is arranged above the cast-in-place column 1, the cast-in-place column 1 is provided with two prefabricated beams, two sides of each prefabricated beam 2 are respectively attached to the two cast-in-place columns 1, the two sides of each prefabricated beam 2 are respectively provided with a buckle-shaped U-shaped steel bar 8, and the buckle-shaped U-shaped steel bars 8 extend to the inside of the prefabricated beams 2 and are fixedly connected with the prefabricated beams 2.
In the above scheme, when the cast-in-place column and the precast beam are required to be connected, after the two cast-in-place columns are fixed with the slab or the foundation, the precast beam is processed according to the distance between the two cast-in-place columns, the precast beam is hoisted and placed above the cast-in-place columns, the buckled U-shaped steel bars on the two sides of the precast beam are respectively sleeved outside the column longitudinal steel bars on the upper end of the cast-in-place columns, and the four column longitudinal steel bars are clamped into the two sides of the buckled U-shaped steel bars for fixing, so that the installation and fixing work is carried out.
In an optimal scheme, the column longitudinal steel bars 7 are provided with four, the buckled U-shaped steel bars 8 are provided with two and four, and the column longitudinal steel bars 7 are respectively clamped into two sides of the buckled U-shaped steel bars 8 and the buckled U-shaped steel bars 8.
In the above scheme, through all blocking four vertical reinforcing bars of post in the both sides of the U type reinforcing bar of latch closure form, fix the convenience and fix a position and install, the process is few, convenient operation, and the working method is simple, and spacing nature is strong, and fixed effect is better, does not need a large amount of fixes of carrying on between the reinforcing bar, the effectual working strength that has reduced, has improved work efficiency.
In a preferred scheme, a laying short platform 5 is installed on one side of the cast-in-place column 1, the laying short platform 5 and the cast-in-place column 1 are in an integrated structure, a limiting plate 3 is installed below the precast beam 2, and the limiting plate 3 and the precast beam 2 are in an integrated structure.
In the scheme, the precast beam is convenient to mount and position through the limiting plate, and the short platform is placed so that the cast-in-place column can fix the precast beam.
In an optimal scheme, the distance between the two cast-in-place columns 1 is the same as the length of the limiting plate 3, the distance between the laying short platform 5 and the top end of the cast-in-place column 1 is the same as the height of the limiting plate 3, and the side face of the limiting plate 3 is clamped into the upper end face of the laying short platform 5 and clamped with the laying short platform 5.
In the scheme, the limiting plate below the precast beam is clamped into the upper end of the laying short platform on the inner side of the cast-in-place column, so that the cast-in-place column is supported, and the connecting effect between the cast-in-place column and the precast beam is improved.
In an optimal scheme, the outer surface of the limiting plate 3 is provided with a beam connecting steel plate 4, the beam connecting steel plate 4 is fixedly connected with the limiting plate 3, the outer surface of the shelving short platform 5 is provided with a column connecting steel plate 6, the column connecting steel plate 6 is fixedly connected with the shelving short platform 5, and the column connecting steel plate 6 is welded with the beam connecting steel plate 4.
In the scheme, after the column connecting steel plate and the beam connecting steel plate are welded, the cast-in-place column can be better attached to the precast beam, so that the stability of the connecting structure can be improved after the column connecting steel plate and the beam connecting steel plate are fixed.
In a preferable scheme, a plurality of third stirrups 11 and a plurality of fifth stirrups 15 are respectively installed on two sides of the interior of the cast-in-place column 1, the plurality of third stirrups 11 are all clamped with the exterior of the column longitudinal steel bar 7, an additional rib 14 is installed inside the fifth stirrups 15, a fourth stirrup 13 is installed inside the shelving short platform 5, the plurality of fourth stirrups 13 are arranged, the plurality of fourth stirrups 13 are all fixedly connected with the additional rib 14 through clamping grooves, reinforcing ribs 12 are arranged inside the fourth stirrups 13, the three reinforcing ribs 12 are all fixedly connected with the fourth stirrup 13 through clamping grooves, sixth stirrups 16 are installed at the lower ends of the column longitudinal steel bar 7 and the additional rib 14, the plurality of sixth stirrups 16 are arranged, and the plurality of sixth stirrups 16 are all fixedly connected with the column longitudinal steel bar 7 and the additional rib 14 through clamping grooves, and reinforcing steel bars 17 are arranged on two sides of the interior of the sixth stirrup 16, and the reinforcing steel bars 17 are fixedly connected with the sixth stirrup 16 through clamping grooves.
In the above scheme, the outside of the interior vertical reinforcing bar of post of cast-in-place post all with the third stirrup to the block, fix four vertical reinforcing bars of post through the third stirrup, closely block the solid with the snap ring of the vertical reinforcing bar below of post and reinforcement reinforcing bar and sixth stirrup again, thereby make the position of the vertical reinforcing bar of post remain stable, and the lifting strength, thereby when being connected with the buckle form U shaped steel muscle, can keep sufficient intensity spacing, improve fixed effect portion both sides and all install first stirrup.
In an optimal scheme, the first stirrups 9 are respectively and fixedly connected with the two buckled U-shaped steel bars 8 through clamping grooves, the second stirrups 10 are installed in the middle of the buckled U-shaped steel bars 8, and the second stirrups 10 are fixedly connected with the buckled U-shaped steel bars 8 through clamping grooves.
In the above scheme, through the inside first stirrup of precast beam and two buckle form U shaped steel muscle looks cards admittedly, and a plurality of first stirrups all extend to the precast beam outside to improve fixed effect, improved the intensity of two buckle form U shaped steel muscle, further promoted joint strength, and shelve the inside strengthening rib of short platform, the fourth stirrup and the additional muscle between mutually support the card admittedly, thereby improved the support intensity of shelving short platform, the effectual intensity that has improved connection structure.
The construction method of the connecting structure of the concrete precast beam and the cast-in-place column comprises the following steps:
the method comprises the following steps: after fixing two cast-in-place columns 1 and a plate or a foundation, processing a precast beam 2 according to the distance position of the two cast-in-place columns 1, and hoisting and placing the precast beam 2 above the cast-in-place columns 1;
step two: sleeving the ring-buckle-shaped U-shaped steel bars 8 on two sides of the precast beam 2 outside the column longitudinal steel bars 7 at the upper end of the cast-in-place column 1 respectively, and clamping the four column longitudinal steel bars 7 into two sides of the ring-buckle-shaped U-shaped steel bars 8 for fixing;
step three: the limiting plate 3 below the precast beam 2 is clamped into the laying short platform 5 on the inner side of the cast-in-place column 1, and after the positions between the limiting plate 3 and the laying short platform 5 are correspondingly aligned, the connecting seam between the beam connecting steel plate 4 and the column connecting steel plate 6 can be welded.
In the above scheme, when the cast-in-place column and the precast beam are required to be connected, after the two cast-in-place columns are fixed with the slab or the foundation, the precast beam is processed according to the distance between the two cast-in-place columns, the precast beam is hoisted and placed above the cast-in-place columns, the buckled U-shaped steel bars on the two sides of the precast beam are respectively sleeved outside the column longitudinal steel bars on the upper end of the cast-in-place columns, and the four column longitudinal steel bars are clamped into the two sides of the buckled U-shaped steel bars for fixing, so that the installation and fixing work is carried out.
In a preferred scheme, in the second step, the lower end of the first stirrup 9 extending outwards from the bottom of the precast beam 2 directly extends into the node core area of the upper end surface of the cast-in-place column 1 to be anchored, and the end part of the anchoring steel bar is bent to form a hook or an anchoring end is additionally arranged at the end part of the steel bar to ensure the anchoring quality and reduce the anchoring length.
In the scheme, the first stirrups are anchored after extending into the cast-in-place columns, and the fixing effect between the cast-in-place columns and the precast beams is improved.
In a preferable scheme, in the third step, bolts or steel bars extend out of the short shelving platform 5 and are inserted into pin bolt holes at the lower end inside the limiting plate 3 to perform limiting and fixing work.
In the scheme, the placed short platforms and the limiting plates are connected through bolts or reinforcing steel bars from the outside, so that the fixing effect of the cast-in-place columns and the precast beams is further improved, the supporting strength of the placed short platforms is improved, and the strength of the connecting structure is effectively improved.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (10)
1. A connection structure of precast concrete roof beam and cast-in-place post wherein includes:
the cast-in-place column comprises a cast-in-place column and column longitudinal steel bars arranged above the cast-in-place column, wherein the column longitudinal steel bars extend into the cast-in-place column and are fixedly connected with the cast-in-place column;
the prefabricated beam is arranged above the cast-in-place columns, the number of the cast-in-place columns is two, two sides of the prefabricated beam are respectively attached to the two cast-in-place columns, ring buckle-shaped U-shaped steel bars are arranged on two sides of the prefabricated beam, and the ring buckle-shaped U-shaped steel bars extend to the interior of the prefabricated beam and are fixedly connected with the prefabricated beam.
2. A connecting structure of a precast concrete beam and a cast-in-place column according to claim 1, wherein there are four column longitudinal reinforcements, there are two loop-type U-shaped reinforcements, and the four column longitudinal reinforcements are fixedly connected to the loop-type U-shaped reinforcements by being respectively clamped into both sides of the two loop-type U-shaped reinforcements.
3. A connecting structure of a precast concrete beam and a cast-in-place column as claimed in claim 1, wherein a resting short platform is installed at one side of the cast-in-place column, the resting short platform and the cast-in-place column are integrated into a whole, a limiting plate is installed below the precast beam, and the limiting plate and the precast beam are integrated into a whole.
4. A connecting structure of a precast concrete beam and a cast-in-place column as claimed in claim 3, wherein the distance between two cast-in-place columns is the same as the length of the limiting plate, the distance between the resting short platform and the top end of the cast-in-place column is the same as the height of the limiting plate, and the side surface of the limiting plate is clamped into the upper end surface of the resting short platform and is clamped with the resting short platform.
5. A connecting structure of a precast concrete beam and a cast-in-place column according to claim 3, wherein the outer surface of the limiting plate is provided with a beam connecting steel plate which is fixedly connected with the limiting plate, the outer surface of the shelving short platform is provided with a column connecting steel plate which is fixedly connected with the shelving short platform, and the column connecting steel plate is welded with the beam connecting steel plate.
6. The connecting structure of a precast concrete beam and a cast-in-place column according to claim 3, wherein a third stirrup and a fifth stirrup are respectively installed on both sides of the interior of the cast-in-place column, the third stirrup is provided with a plurality of third stirrups, the plurality of third stirrups are all engaged with the exterior of the column longitudinal reinforcement, an additional reinforcement is installed inside the fifth stirrup, a fourth stirrup is installed inside the shelf short platform, the fourth stirrup is provided with a plurality of fourth stirrups, the plurality of fourth stirrups are all fixedly connected with the additional reinforcement through slots, reinforcing ribs are provided inside the fourth stirrup, three reinforcing ribs are provided, the three reinforcing ribs are all fixedly connected with the fourth stirrup through slots, sixth stirrups are installed at the lower ends of the column longitudinal reinforcement and the additional reinforcement, the plurality of sixth stirrups are all fixedly connected with the column longitudinal reinforcement and the additional reinforcement through slots, and reinforcing steel bars are arranged on two sides of the interior of the sixth stirrup and fixedly connected with the sixth stirrup through clamping grooves.
7. The connecting structure of a precast concrete beam and a cast-in-place column according to claim 1, wherein first stirrups are respectively installed on two sides of the interior of the cast-in-place column, the first stirrups are respectively and fixedly connected with the two buckled U-shaped steel bars through clamping grooves, a second stirrup is installed in the middle of the two buckled U-shaped steel bars, and the second stirrups are fixedly connected with the buckled U-shaped steel bars through clamping grooves.
8. A construction method of a connecting structure of a concrete precast beam and a cast-in-place column comprises the following steps:
the method comprises the following steps: after the two cast-in-place columns are fixed with the plate or the foundation, processing a precast beam according to the distance position of the two cast-in-place columns, and hoisting and placing the precast beam above the cast-in-place columns;
step two: sleeving the ring-buckle U-shaped steel bars on two sides of the precast beam outside the column longitudinal steel bars at the upper end of the cast-in-place column respectively, and clamping the four column longitudinal steel bars into two sides of the ring-buckle U-shaped steel bars for fixing;
step three: and the limiting plate below the precast beam is clamped into the placing short platform on the inner side of the cast-in-place column, and after the limiting plate and the placing short platform are aligned, the connecting seam between the beam connecting steel plate and the column connecting steel plate can be welded.
9. The construction method of a connection structure of a precast concrete beam and a cast-in-place column according to claim 8, wherein in the second step, a lower end of a first stirrup extending outward from the precast beam bottom directly extends into a node core region of an upper end surface of the cast-in-place column to anchor, and an end of an anchoring reinforcement is bent to form a hook or an anchoring end is additionally provided at an end of the reinforcement to ensure anchoring quality and reduce anchoring length.
10. The construction method of the connection structure of the precast concrete beam and the cast-in-place column according to claim 8, wherein in the third step, bolts or reinforcing steel bars are extended from the short shelving platform and inserted into the pin bolt holes at the lower end inside the limiting plate to perform limiting and fixing work.
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| CN202010598067.5A CN111764505A (en) | 2020-06-28 | 2020-06-28 | Connecting structure of concrete precast beam and cast-in-place column and construction method thereof |
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| CN202010598067.5A CN111764505A (en) | 2020-06-28 | 2020-06-28 | Connecting structure of concrete precast beam and cast-in-place column and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114164993A (en) * | 2021-10-27 | 2022-03-11 | 湖南大学 | A connection structure of beam and plate based on groove-shaped UHPC splicing member and manufacturing method thereof |
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| CN114164993A (en) * | 2021-10-27 | 2022-03-11 | 湖南大学 | A connection structure of beam and plate based on groove-shaped UHPC splicing member and manufacturing method thereof |
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