CN114809772A - Construction method of assembled column connecting joint and connecting joint - Google Patents
Construction method of assembled column connecting joint and connecting joint Download PDFInfo
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- CN114809772A CN114809772A CN202210625463.1A CN202210625463A CN114809772A CN 114809772 A CN114809772 A CN 114809772A CN 202210625463 A CN202210625463 A CN 202210625463A CN 114809772 A CN114809772 A CN 114809772A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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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
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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Abstract
The invention provides a construction method of an assembly type column connecting node and the connecting node, comprising the following steps: pouring and maintaining a cast-in-place node area at the top of the lower-layer prefabricated column; a template is sleeved on the top of the cast-in-place node area and surrounds the part, extending out of the top of the cast-in-place node area, of the lower-layer precast column longitudinal bar, and the template and the top surface of the cast-in-place node area form an accommodating space with an upward opening and capable of pouring concrete mortar; pouring concrete mortar into the accommodating space through the opening; aligning and inserting the positioning component extending out of the bottom of the upper-layer prefabricated column into the concrete mortar through the opening, and supporting the bottom of the upper-layer prefabricated column on the top of the template; and curing the concrete mortar. The invention can solve the problems of poor construction quality and low construction precision of the connecting joint of the prefabricated column.
Description
Technical Field
The invention relates to the technical field of fabricated structures, in particular to a fabricated column connecting node construction method.
Background
At present, the wide application of the fabricated structure in China is an important line for promoting the development of the fabricated building and realizing the industrialization of the building industry, and compared with the original cast-in-place concrete structure, the fabricated structure has the advantages of stable quality, high construction efficiency, less total construction cost of projects and reduction of the pollution to the environment. In the prefabricated post that has at present, the connected mode between the assembled concrete post mainly adopts grout muffjoint and anchor paste overlap joint, perhaps increases shaped steel connecting piece in the node again in order to realize connecting, and above-mentioned several kinds of connected modes construction cost increase, construction process are complicated, and the construction precision is difficult to guarantee, and construction back node quality detects the difficulty.
Disclosure of Invention
The invention aims to overcome at least one defect (deficiency) of the prior art, and provides an assembly type column connecting node construction method and a connecting node, which are used for solving the problems of poor construction quality and low construction precision of the assembly type prefabricated column connecting node.
The technical scheme adopted by the invention is as follows:
in a first aspect, the present invention provides a method for constructing an assembled column connecting node, comprising:
pouring and maintaining a cast-in-place node area at the top of the lower-layer prefabricated column;
a template is sleeved on the top of the cast-in-place node area and surrounds the part, extending out of the top of the cast-in-place node area, of the lower-layer precast column longitudinal bar, and the template and the top surface of the cast-in-place node area form an accommodating space with an upward opening and capable of pouring concrete mortar;
pouring concrete mortar into the accommodating space through the opening;
aligning and inserting the positioning component extending out of the bottom of the upper-layer prefabricated column into the concrete mortar through the opening, and supporting the bottom of the upper-layer prefabricated column on the top of the template;
and curing the concrete mortar.
Optionally, before the positioning member protruding out of the bottom of the upper prefabricated column is inserted into the concrete mortar in alignment through the opening, the method further comprises:
the positioning part extending out of the bottom of the upper-layer prefabricated column is hooped with shear steel bars;
or, at the top in cast-in-place node district, and around the prefabricated post longitudinal reinforcement of lower floor stretches out before the partial cover of cast-in-place node district top establishes the template, still include:
and shearing-resistant steel bars are hooped at the parts of the longitudinal bars of the lower-layer prefabricated columns, which extend out of the top of the cast-in-situ node area.
Optionally, cast-in-place node area is pour and is maintained at the top of lower floor's prefabricated post, includes:
hooping the part of the lower-layer prefabricated column longitudinal bar, which extends out of the bottom of the lower-layer prefabricated column and extends into the cast-in-place node area, with a hoop bar;
pouring the cast-in-place node area;
and maintaining the cast-in-place node area.
Optionally, pouring concrete mortar into the accommodating space through the opening, including:
and pouring concrete mortar into the accommodating space through the opening, so that at least half of the accommodating space is poured with the concrete mortar.
Optionally, pouring concrete mortar into the accommodating space through the opening, including:
and pouring concrete mortar into the accommodating space through the opening, so that the concrete mortar in the accommodating space can overflow when the positioning component is inserted.
Optionally, the positioning component includes a portion of the upper-layer prefabricated column longitudinal bar which extends out of the bottom of the upper-layer prefabricated column after being bent inwards, and the depth of the positioning component inserted into the concrete mortar is greater than or equal to the minimum length which meets the anchoring requirement of the upper-layer prefabricated column longitudinal bar.
Optionally, the height of the template is greater than or equal to the sum of the height of the positioning component and the thickness of a protective layer for protecting the positioning component.
Optionally, at the top of the cast-in-place node area, and after the formwork is established around the longitudinal bar sleeve of the lower prefabricated column extending out of the top of the cast-in-place node area, before the concrete mortar is poured into the accommodating space through the opening, the method further includes:
fixing the position of the template through a support;
after curing the concrete mortar, the method further comprises the following steps:
and removing the support, and detaching the template when the template is detachable.
Optionally, after the cast-in-place node area is poured and maintained at the top of the lower precast column, before concrete mortar is poured into the accommodating space through the opening, the method further includes:
and roughening the top surface of the cast-in-place node area.
In a second aspect, the invention provides an assembly type column connecting node, which comprises an upper layer prefabricated column and a lower layer prefabricated column, wherein the upper layer prefabricated column and the lower layer prefabricated column are respectively provided with longitudinal ribs and stirrups, a cast-in-place node area is arranged between the upper layer prefabricated column and the lower layer prefabricated column, the upper layer prefabricated column is provided with a positioning part, and the positioning part extends out of the bottom of the upper layer prefabricated column; the upper parts of the longitudinal ribs of the lower-layer prefabricated column extend into the cast-in-place node area and extend out of the top of the cast-in-place node area, and the connecting nodes are constructed by the construction method of the assembly type column connecting nodes according to any one of claims 1 to 9.
Compared with the prior art, the invention has the beneficial effects that: the mode that the concrete mortar is inserted into the positioning part stretching out the bottom of the upper prefabricated column and the concrete mortar is inserted into the longitudinal rib stretching out of the top of the lower prefabricated column makes the construction operation of the assembled column connection node simpler and more convenient, ensures the construction quality more easily and improves the construction precision.
Drawings
FIG. 1 is a flowchart of an embodiment 1 of a construction method of an assembly type column connecting node
Fig. 2 is a schematic view of a fabricated column connection node after completion of construction according to embodiment 1.
Fig. 3 is an enlarged view of a in fig. 2.
Fig. 4 is a flowchart of pouring and maintaining a cast-in-place node area at step S10 in example 1.
FIG. 5 is a schematic view of an assembled column connecting node after the formwork is installed in the embodiment 1.
FIG. 6 is a schematic view of a fabricated column connecting node according to embodiment 2 after completion of construction.
FIG. 7 is a schematic view of a fabricated column connecting node according to embodiment 3 after completion of construction.
Description of the drawings: 100-upper prefabricated columns; 111-longitudinal bars of the prefabricated columns on the upper layer; 112-stirrup of upper prefabricated column; 113-a bump; 200-lower prefabricated columns; 211-longitudinal ribs of the lower prefabricated column; 212-stirrups of the lower prefabricated columns; 300-cast-in-place node area; 310-burrs; 410-a template; 411-reinforcing steel bars; 420-concrete mortar; 430-open mouth; 440-accommodation space.
Detailed Description
The drawings are only for purposes of illustration and are not to be construed as limiting the invention. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Example 1
The embodiment provides a construction method of an assembly type column connecting node, which is used for constructing the assembly type column connecting node. Fabricated monolithic concrete structures are structures that are formed as a whole from prefabricated concrete elements or components joined by reinforcing steel, connectors or prestressing and cast in place concrete, with cast-in-place nodal areas being formed at the points where the prefabricated elements are joined to one another.
The assembled post connected node that this embodiment was under construction is the connected node of prefabricated post of upper prefabricated post and lower floor, and prefabricated post of upper prefabricated post and lower floor are prefabricated concrete structure. Fig. 1 is a flowchart of a construction method of a fabricated column connection node according to the present embodiment, fig. 2 is a schematic view of a fabricated column connection node after completion of construction according to the present embodiment, and fig. 3 is an enlarged view of a point a in fig. 2.
As shown in fig. 1 to 3, the construction method of the fabricated column connection node includes:
s10, pouring and maintaining the cast-in-place node area 300 on the top of the lower-layer prefabricated column 200.
Cast-in-place node area 300 is located between upper precast column 100 and lower precast column 200. Before the prefabricated upper column 100 is assembled, the cast-in-place node area 300 is poured and maintained.
The lower prefabricated column 200 is fixedly connected with the top structure thereof, and the longitudinal rib 211 of the lower prefabricated column 200 needs to extend into the cast-in-place node area 300. Therefore, as shown in fig. 2 to 4, step S10 specifically includes:
s11, hooping a hoop rib 212 on a part, extending out of the bottom of the lower-layer prefabricated column 200, of the longitudinal rib 211 of the lower-layer prefabricated column 200 and extending into the cast-in-situ node area 300;
s12, pouring a cast-in-place node area 300;
s13, maintaining the cast-in-situ node area 300.
The lower prefabricated column 200, which is a prefabricated concrete structure, is provided with longitudinal ribs 211 and stirrups 212 hooped on the longitudinal ribs 211. The upper parts of the longitudinal ribs 211 of the lower prefabricated column 200 extend out of the top of the lower prefabricated column 200 and extend into the cast-in-place node area 300. After the prefabrication of the lower prefabricated column 200 is completed, the part of the longitudinal rib 211 of the lower prefabricated column 200, which extends out of the top of the lower prefabricated column 200, is not hooped with the hoop rib 212, and after the lower prefabricated column 200 is installed and positioned and before the cast-in-place node area 300 is poured, the part of the longitudinal rib 211 of the lower prefabricated column 200, which extends out of the bottom of the lower prefabricated column 200 and extends into the cast-in-place node area 300, is hooped with the hoop rib 212.
In the specific implementation process, when a beam and/or a plate can be further arranged between the upper prefabricated column 100 and the lower prefabricated column 200, the beam and the plate can be prefabricated or cast in place respectively. In order to fixedly connect the beam ends, the longitudinal bars of the beam may also extend into the cast-in-place node area 300, and at this time, the longitudinal bars of the beam are set before the cast-in-place node area 300 is poured.
S20, a template 410 is sleeved on the top of the cast-in-place node area 300 and around the part, extending out of the top of the cast-in-place node area 300, of the longitudinal rib 211 of the lower prefabricated column 200, and an accommodating space 440 with an upward opening 430 and capable of pouring concrete mortar 420 is formed between the template 410 and the top surface of the cast-in-place node area 300.
Illustratively, fig. 5 is a schematic view of the fabricated post connecting node after the template 410 is nested. As shown in fig. 5, the mold plate 410 forms a side enclosure of the accommodation space 440, the top surface of the cast-in-place node area 300 forms a bottom enclosure of the accommodation space 440, and the top surface of the accommodation space 440 is not enclosed to form an upward opening 430. The form 410 may be placed directly on top of the cast-in-place node area 300, facilitating the completion of the setting of the form 410 during construction. The form 410 may also be inserted into the top of the cast-in-place node zone 300 to optimize the securing effect of the form 410. The receiving space 440 formed by the form 410 and the top surface of the cast-in-place node area 300 may wrap the portion of the longitudinal rib 211 of the lower prefabricated column 200 extending out of the top of the cast-in-place node area 300.
During construction, when concrete mortar 420 is not set, form 410 is susceptible to large lateral forces. The form 410 is also susceptible to a degree of lateral force under various conditions of the connecting joint. To further ensure the stability and safety of the form 410 during and after the construction process, in an alternative embodiment, the form 410 is a concrete structure, and the interior of the form 410 is provided with reinforcing bars 411 around the center of the receiving space 440.
After step S20 forms the containing space 440 with the opening 430 facing upward, the method may further include: the top surface of the cast-in-place node zone 300 is roughened.
The top surface of the cast-in-place node area 300 is roughened, so that burrs 310 are formed on the top surface of the cast-in-place node area 300, and the connection shape between the cast-in-place node area 300 and the concrete mortar 420 poured into the accommodating space 440 in the following process can be enhanced.
S30, pouring concrete mortar 420 into the accommodating space 440 through the opening 430.
After the form 410 is installed and forms the receiving space 440 with the top surface of the cast-in-place node area 300, concrete can be poured into the receiving space 440 through the opening 430. The poured concrete mortar 420 may be selected for ease of insertion for subsequent alignment of the positioning members at the bottom of the upper precast column 100.
In an alternative embodiment, the receiving space 440 is not filled with too little concrete mortar 420, and the receiving space 440 is filled with concrete mortar 420 through the opening 430, so that at least half of the receiving space 440 is filled with concrete mortar 420, thereby allowing the concrete mortar 420 to better wrap the subsequently inserted bottom positioning member of the upper precast column 100.
In another alternative embodiment, concrete mortar 420 is poured into the accommodating space 440 through the opening 430, so that the concrete mortar 420 in the accommodating space 440 overflows when the positioning component is inserted, and the overflowing concrete mortar 420 can enable the positioning component at the bottom of the upper-layer prefabricated column 100 which is inserted subsequently to be better wrapped.
S40, aligning and inserting the positioning components extending out of the bottom of the upper-layer prefabricated column 100 into the concrete mortar 420 through the opening 430, and directly supporting the bottom of the upper-layer prefabricated column 100 on the top of the formwork 410.
The positioning component at the bottom of the upper prefabricated column 100 is inserted into the concrete mortar 420 of the accommodating space 440, so that the upper prefabricated column 100 is positioned, the bottom of the upper prefabricated column 100 can be directly supported on the top of the template 410, and the concrete mortar 420 can be reliably connected with the upper prefabricated column 100 after being solidified.
When the concrete mortar 420 in the accommodating space 440 is sufficient, the insertion of the positioning member in the bottom of the upper precast column 100 into the concrete mortar 420 may cause the concrete mortar 420 to overflow the accommodating space 440, and the concrete mortar 420 may exist in the gap between the bottom of the upper precast column 100 and the formwork 410, so as to enhance the adhesion between the upper precast column 100 and the formwork 410.
When the positioning member at the bottom of the upper precast column 100 is inserted into the concrete mortar 420 of the accommodating space 440, a protective layer thickness may be reserved between the bottom of the positioning member and the top surface of the cast-in-place node area 300 to better protect the defining member. Therefore, the height (h in fig. 3) of the template 410 is greater than or equal to the height (l in fig. 3) of the positioning part 1 ) And the thickness of a protective layer (c in fig. 3) that protects the positioning member.
In an alternative embodiment, the positioning member may include a portion of the longitudinal rib 111 of the upper-layer prefabricated column 100 that is bent inward and then extends out of the bottom of the upper-layer prefabricated column 100.
Because the positioning component needs to meet certain anchoring requirements, the depth of the positioning component inserted into the concrete mortar 420 is greater than or equal to the minimum length which meets the anchoring requirements of the longitudinal ribs 111 of the upper-layer prefabricated column 100.
S50, curing the concrete mortar 420.
After the positioning and installation of the upper precast column 100 are completed, the curing of the concrete mortar 420 may be performed.
In an alternative embodiment, after the step S20 is performed on the top of the cast-in-place node area 300, and the formwork 410 is sleeved around the longitudinal rib 211 of the lower precast column 200 extending out of the top of the cast-in-place node area 300, and before the step S30 pours the concrete mortar 420 into the accommodating space 440 through the opening 430, the method may further include: the position of the template 410 is fixed by the support. After curing the concrete mortar 420 in step S50, the method may further include: the support is removed and the template 410 is removed when the template 410 is removable.
To further ensure the reliability of form 410 when concrete mortar 420 is not cured, form 410 may be secured by supports, such as braces or the like, which may be removed after concrete mortar 420 is cured.
The form 410 may be designed to be removable for aesthetic purposes, and the form 410 may be removed after the concrete mortar 420 is set, in which case the form 410 may be an aluminum form or a wooden form. When the form 410 is non-removable, the form 410 may be a concrete form.
By adopting the construction method provided by the embodiment, the positioning parts of the upper-layer precast column 100 and the longitudinal ribs 211 of the lower-layer precast column 200 are inserted into the concrete mortar 420, so that the construction operation is simple, and the construction quality is easy to ensure.
Example 2
The embodiment provides a construction method of an assembly type column connecting node, which is used for constructing the assembly type column connecting node. The present embodiment is different from embodiment 1 in that, before step S40, the method further includes: the shear reinforcement 412 is hooped on the positioning part extending out of the bottom of the upper prefabricated column 100.
Fig. 6 is a schematic view of the fabricated column connection node after the construction of the present embodiment is completed, and as shown in fig. 6, the shear reinforcement 412 is hooped on the positioning member. Specifically, the positioning member includes a portion of the longitudinal rib 111 of the upper prefabricated column 100, which is bent inward and then extends out of the bottom of the upper prefabricated column 100, and the shear reinforcement 412 is hooped on the portion.
Example 3
The embodiment provides a construction method of an assembly type column connecting node, which is used for constructing the assembly type column connecting node. The present embodiment is different from embodiment 1 in that, before step S20, the method further includes: shear steel bars 412 are hooped at the parts of the longitudinal bars 211 of the lower-layer prefabricated columns 200, which extend out of the tops of the cast-in-situ node areas 300.
As shown in fig. 2 and 3, the shear reinforcement 412 is hooped on the longitudinal bar 211 of the lower prefabricated column 200.
Example 4
Based on the same inventive concept, the embodiment further provides an assembly type column connection node, as shown in fig. 2 and fig. 3, the assembly type column connection node comprises an upper layer prefabricated column 100 and a lower layer prefabricated column 200, the lower layer prefabricated column 200 is provided with longitudinal ribs 211 and stirrups 212, a cast-in-place node area 300 is arranged between the upper layer prefabricated column 100 and the lower layer prefabricated column 200, the upper layer prefabricated column 100 is provided with a positioning part, the positioning part extends out of the bottom of the upper layer prefabricated column 100, the upper part of the longitudinal ribs 211 of the lower layer prefabricated column 200 extends into the cast-in-place node area 300 and extends out of the top of the cast-in-place node area 300, and the connection node is constructed by the assembly type column connection node construction method.
The longitudinal ribs 211 of the lower prefabricated column 200 extend into the cast-in-place node area 300, so that the top of the lower prefabricated column 200 is fixedly connected with the structure at the top of the lower prefabricated column 200; the positioning component at the bottom of the upper-layer prefabricated column 100 is inserted into the accommodating space 440 formed by the template 410 and the top surface of the cast-in-place node area 300 and is wrapped and connected by the concrete mortar 420 in the accommodating space 440, so that the bottom of the upper-layer prefabricated column 100 is hinged with the bottom of the lower-layer prefabricated column 200, compared with the fixed connection, the requirement of the hinged form on the node construction quality is reduced, and the construction quality of the upper-layer prefabricated column 100 in the assembly process in a construction site is ensured more easily. And compared with the prefabricated columns fixedly connected with the bottom and the top, the prefabricated columns fixedly connected with the bottom and the top in a hinged mode have better energy consumption characteristics, and can be better applied to seismic design.
Fig. 7 is a schematic view of another fabricated column connection node after completion of construction according to the embodiment. In an alternative embodiment, as shown in fig. 7, the upper prefabricated column 100 is further provided with a projection 113, the projection 113 extends out of the bottom of the upper prefabricated column 100, and the projection 113 wraps the positioning member extending out of the bottom of the upper prefabricated column 100. Specifically, the longitudinal rib 111 of the upper prefabricated column 100 in the positioning component is bent inward, and then the part extending out of the bottom of the upper prefabricated column 100 extends into the bump 113. The protrusion 113 may better protect the positioning member and facilitate insertion of the concrete mortar 420 into the receiving space 440.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not intended to limit the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention claims should be included in the protection scope of the present invention claims.
Claims (10)
1. A construction method of an assembly type column connection node is characterized by comprising the following steps:
pouring and maintaining a cast-in-place node area at the top of the lower-layer prefabricated column;
a template is sleeved on the top of the cast-in-place node area and surrounds the part, extending out of the top of the cast-in-place node area, of the lower-layer prefabricated column longitudinal rib, and the template and the top surface of the cast-in-place node area form an accommodating space with an upward opening and capable of pouring concrete mortar;
pouring concrete mortar into the accommodating space through the opening;
aligning and inserting the positioning component extending out of the bottom of the upper-layer prefabricated column into the concrete mortar through the opening, and supporting the bottom of the upper-layer prefabricated column on the top of the template;
and curing the concrete mortar.
2. The method of constructing an assembled column connecting node according to claim 1, further comprising, before inserting the positioning member protruding out of the bottom of the upper precast column through the opening in alignment with the concrete mortar, the steps of:
the positioning part extending out of the bottom of the upper-layer prefabricated column is hooped with shear steel bars;
or, at the top in cast-in-place node district, and around the prefabricated post longitudinal reinforcement of lower floor stretches out before the partial cover of cast-in-place node district top establishes the template, still include:
and shearing-resistant steel bars are hooped at the parts of the longitudinal bars of the lower-layer prefabricated columns, which extend out of the top of the cast-in-situ node area.
3. The assembly type column connection node construction method according to claim 1, wherein the step of casting and maintaining a cast-in-place node area on the top of the lower prefabricated column comprises the following steps:
hooping the part of the lower-layer prefabricated column longitudinal bar, which extends out of the bottom of the lower-layer prefabricated column and extends into the cast-in-place node area, with a hoop bar;
pouring the cast-in-place node area;
and maintaining the cast-in-place node area.
4. The fabricated column connection node construction method of claim 1, wherein pouring concrete mortar into the accommodation space through the opening comprises:
and pouring concrete mortar into the accommodating space through the opening, so that at least half of the accommodating space is poured with the concrete mortar.
5. The fabricated column connection node construction method of claim 1, wherein pouring concrete mortar into the accommodation space through the opening comprises:
and pouring concrete mortar into the accommodating space through the opening, so that the concrete mortar in the accommodating space can overflow when the positioning component is inserted.
6. The construction method of the assembled column connecting joint according to claim 1, wherein the positioning component comprises a part of the upper-layer prefabricated column longitudinal bar which extends out of the bottom of the upper-layer prefabricated column after being bent inwards, and the depth of the positioning component inserted into the concrete mortar is greater than or equal to the minimum length meeting the anchoring requirement of the upper-layer prefabricated column longitudinal bar.
7. The fabricated column connection node construction method of claim 1, wherein the height of the formwork is greater than or equal to the sum of the height of the positioning member and the thickness of a protective layer protecting the positioning member.
8. The construction method of the fabricated column connecting joint according to claim 1, wherein after the formwork is sleeved around the longitudinal ribs of the lower prefabricated column extending out of the top of the cast-in-place joint area at the top of the cast-in-place joint area, and before the concrete mortar is poured into the accommodating space through the opening, the construction method further comprises:
fixing the position of the template through a support;
after curing the concrete mortar, the method further comprises the following steps:
and removing the support, and detaching the template when the template is detachable.
9. The construction method of an assembled column connecting node according to claim 1, wherein after the casting and maintenance of the cast-in-place node area on the top of the lower precast column, before the casting of concrete mortar into the accommodating space through the opening, further comprising:
and roughening the top surface of the cast-in-place node area.
10. An assembly type column connecting node comprises an upper layer prefabricated column and a lower layer prefabricated column, wherein longitudinal ribs and stirrups are arranged on the upper layer prefabricated column and the lower layer prefabricated column respectively, and a cast-in-place node area is arranged between the upper layer prefabricated column and the lower layer prefabricated column; the upper parts of the longitudinal ribs of the lower-layer prefabricated column extend into the cast-in-place node area and extend out of the top of the cast-in-place node area, and the connecting nodes are constructed by the construction method of the assembly type column connecting nodes according to any one of claims 1 to 9.
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| JPH11343665A (en) * | 1998-04-03 | 1999-12-14 | Daisue Construction Co Ltd | Hollow precast concrete column and construction method thereof |
| CN108265824A (en) * | 2018-01-24 | 2018-07-10 | 西安建筑科技大学 | A kind of high ductility concrete beam and column node of assembled and connection method |
| CN112112263A (en) * | 2020-07-24 | 2020-12-22 | 广东省建科建筑设计院有限公司 | Fabricated concrete beam-column joint using precast concrete tubular pile and construction method |
| CN113216409A (en) * | 2021-04-25 | 2021-08-06 | 广东省建科建筑设计院有限公司 | Connecting structure of precast concrete tubular pile column with diagonal bracing and hollow floor or flat floor |
| CN113638491A (en) * | 2021-06-25 | 2021-11-12 | 中建五局华东建设有限公司 | Assembled beam-column connecting joint and construction method thereof |
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