CN104652705B - Prefabricated and assembly type steel reinforced concrete column with high-performance concrete frame and construction method - Google Patents

Prefabricated and assembly type steel reinforced concrete column with high-performance concrete frame and construction method Download PDF

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Publication number
CN104652705B
CN104652705B CN201410810524.7A CN201410810524A CN104652705B CN 104652705 B CN104652705 B CN 104652705B CN 201410810524 A CN201410810524 A CN 201410810524A CN 104652705 B CN104652705 B CN 104652705B
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concrete
prefabricated
column
performance
performance concrete
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CN104652705A (en
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杨勇
于云龙
薛亦聪
郭亚康
夏泽宇
马新堡
张超瑞
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Xian University of Architecture and Technology
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Xian University of Architecture and Technology
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Abstract

The invention discloses a prefabricated and assembly type steel reinforced concrete column with a high-performance concrete frame. The prefabricated and assembly type steel reinforced concrete column adopts an idea of partial prefabricated assembly and partial casting in situ and comprises a prefabricated part and a cast-in-situ part. The prefabricated assembly type steel reinforced concrete column comprises a prefabricated high-performance concrete hollow column, longitudinal bars, section steel, stirrups and cast-in-situ common concrete, wherein the longitudinal bars are arranged in the prefabricated high-performance concrete hollow column along the column-length direction; the section steel is arranged in the prefabricated high-performance concrete hollow column along the column-length direction; the stirrups are spread on the cross section of the prefabricated high-performance concrete hollow column at equal intervals; the longitudinal bars and the section steel are enclosed by the stirrups; a central cavity of the prefabricated high-performance concrete hollow column is filled with the cast-in-situ common concrete. The invention also provides a construction method. The prefabricated and assembly type steel reinforced concrete column with a high-performance concrete frame and the construction method disclosed by the invention have the advantages that the hollow prefabricated high-performance concrete column can generate circumferential constraining force for the cast-in-situ common concrete, so that the bearing capability is improved, the whole performance and the seismic resistance of the structure are improved, the deformation capability of a member in the process of transportation and lifting is improved, and the comprehensive improvement and enhancement of the stressing performance and the use performance of the prefabricated steel reinforced concrete member are realized.

Description

A kind of prefabrication and assembly construction profile steel concrete column with high performance concrete frame and construction Method
Technical field
The invention belongs to technical field of buildings, more particularly to a kind of prefabrication and assembly construction shaped steel with high performance concrete frame is mixed Solidifying earth pillar and construction method.
Background technology
Steel reinforced concrete structure (is often translated into Steel Reinforced Concrete Structure, abbreviation SRC structures) Refer to the steel-concrete combined structure form formed by shaped steel that configures in reinforced concrete member section.With armored concrete Structure is compared, and due to configuring shaped steel inside reinforced concrete section, steel reinforced concrete structure has intensity height, rigidity big, anti- The significant advantage such as shock stability is good, sectional dimension is little.As shaped steel outer wrap has armored concrete compared with steel construction, shaped steel is mixed Xtah Crude Clay structure has the outstanding advantages such as low cost, rigidity big, fire resistance and excellent in durability.Therefore, from Financial cost, stress The generalized analysis of the aspects such as performance, endurance quality and fire resistance, steel reinforced concrete structure have reinforced concrete structure concurrently With the advantage of both steel constructions, with significant performance advantage.
Steel reinforced concrete structure is mainly used in some large-scale high-rise buildings and large span architecture at present, and such as Shanghai Jin Mao is big The engineerings such as tall building, Shanghai World Financial Center, CCTV Xin Tai locations, three phase of international trade main building adopt the current shaped steel of steel reinforced concrete structure Xoncrete structure is mainly used in some large-scale high-rise buildings and large span architecture, such as Shanghai Jin Mao Tower, Shanghai Global Finance The engineerings such as center, CCTV Xin Tai locations, three phase of international trade main building adopt steel reinforced concrete structure, and in the general high level having a large capacity and a wide range One of less use steel reinforced concrete structure in building and tier building, its main reason are exactly that steel reinforced concrete structure shows Field working procedure is various and constructs connection complexity.Just because of complicated this protrusion shortcoming of steel reinforced concrete structure construction, cause Steel reinforced concrete structure popularization and application are greatly restricted, and the combination property for causing steel reinforced concrete structure excellent cannot be abundant Play.
The content of the invention
In order to overcome the shortcoming of above-mentioned prior art, it is an object of the invention to provide a kind of band high performance concrete frame Prefabrication and assembly construction profile steel concrete column and construction method, it is using the cast-in-place thought of partial precast assembled portion, pre- in factory first The outside frame portion of PSRC posts processed, then the outside frame portion of PSRC posts is installed in building-site, it is finally together whole with beam, plate The boring part of PSRC posts is poured, is suitable for different project situation demands, with easy construction, with low cost, function admirable The characteristics of.
To achieve these goals, the technical solution used in the present invention is:
A kind of prefabrication and assembly construction profile steel concrete column with high performance concrete frame, including:
Prefabricated high performance concrete open tubular column 1;
The vertical muscle 2 in prefabricated high performance concrete open tubular column 1 is arranged at along column length direction;
The shaped steel 3 in prefabricated high performance concrete open tubular column 1 is arranged at along column length direction;
The stirrup 4 being equidistantly layed on prefabricated 1 cross section of high performance concrete open tubular column, wherein indulges muscle 2 and shaped steel 3 is equal Among the encirclement of stirrup 4;
And,
The cast-in-place concrete 5 being filled in the center cavity of prefabricated high performance concrete open tubular column 1.
The shaped steel 3 is I-steel.
The shaped steel 3 is staggeredly made up of in cross two I-steel.
The shaped steel 3 stretches out the two ends of prefabricated high performance concrete open tubular column 1 on column length direction.
The stirrup 4 is welding compound stirrup or continuous helical high-strength stirrup.
The concrete adopted by the cast-in-place concrete 5 is normal concrete, regeneration concrete, lightweight aggregate concrete, rubber Glue concrete, sound absorption concrete or thermal-insulating concrete.
Present invention also offers the construction method of the prefabrication and assembly construction profile steel concrete column with high performance concrete frame, Characterized in that, step is as follows:
1), in factory, pour prefabricated high performance concrete open tubular column 1 in concrete rubber core, be placed into vertical muscle 2, Shaped steel 3 and stirrup 4, complete pre-erection;
2), at the scene, the prefabricated high performance concrete open tubular column 1 with vertical muscle 2, shaped steel 3 and stirrup 4 is installed;
3), cast-in-place concrete 5 is poured to the center cavity of prefabricated high performance concrete open tubular column 1, and while whole pour beam, plate Part.
Compared with prior art, the invention has the beneficial effects as follows:
1) easy construction.
The prefabricated type steel skeleton part of PSRC posts includes that post indulges stirrup, section steel flange and circumferential concrete in muscle, post, the portion The production that point is prefabricated in the factory is completed, building site by the shaped steel of pre-erection and node or steel column are directly connected to (or with it is mixed Solidifying earth pillar transition connection), then casting concrete boring part completes PSRC post construction and installation.Construct with traditional SRC posts Installation is compared, and scene is without assembling reinforcement, formwork, form removal and sets up temporary support under post.ECDC reason design, the construction of PSRC posts Installing will be equally convenient and quick with steel column, and workability will be greatly improved.
2) functional promotion.
As described above, can adopt high performance concrete in pre-erection in PSRC posts, cast-in-place part is using common strong Degree concrete, the two strength grade of concrete can be with difference.Therefore, in practical engineering application, floorslab concrete can when selecting Not limited by concrete strength in post, from all kinds concrete of different qualities, effective lift structure is needed using function Ask.For example for the cast-in-place part concrete of PSRC posts, for the energy that economizes on resources, regeneration concrete can be adopted;For mitigating certainly Weight, can adopt lightweight aggregate concrete;For improving shock-absorption sound-insulation effect, rubber concrete or sound absorption concrete can be adopted;For Heat-insulating property is improved, thermal-insulating concrete can be adopted.
3) construction quality is good.
In the construction of traditional SRC posts, as SRC post working procedures are more, difficulty of construction big, mix in often there are SRC column webs The quality problems such as reinforcing bar dislocation in solidifying soil vibrates poor, Concrete intensity insufficient and post, construction quality are wayward.And in PSRC posts In, the frame portion of PSRC posts is prefabrication, and concreting is vibrated convenient and it can be deployed in steam curing, concrete construction Quality is easily controllable, and during particularly with using high performance concrete, PSRC posts advantage in terms of quality control on construction becomes apparent from.
Generally speaking, working procedure and construction are simplified using the PSRC posts of prefabrication and assembly construction technology compared with traditional SRC posts Difficulty, energy effectively solving restrict the crucial problem of traditional SRC posts popularization and application for a long time, and can give full play to and effectively lift biography System SRC posts are can be widely applied in the significant advantage of the aspects such as stress performance, endurance quality, fire resistance and economic performance In all kinds of armored concrete and steel building, be particularly suited for large span, heavy load or complexity, irregular skyscraper and High-rise building.Therefore, PSRC posts are carried out further investigation to promote the great practical meaning in engineering of its popularization and application.
Description of the drawings
Fig. 1 is the cross-sectional view of prefabrication and assembly construction profile steel concrete column of the present invention.
Fig. 2 is the structural representation of prefabrication and assembly construction profile steel concrete column pre-erection of the present invention.
Fig. 3 is the top view of prefabrication and assembly construction profile steel concrete column pre-erection of the present invention.
Fig. 4 is the structural representation of prefabrication and assembly construction profile steel concrete column of the present invention.
Fig. 5 is the top view of prefabrication and assembly construction profile steel concrete column of the present invention.
Fig. 6 is the scheme of installation of prefabrication and assembly construction profile steel concrete column of the present invention and beam.
Specific embodiment
Describe embodiments of the present invention with reference to the accompanying drawings and examples in detail.
A kind of prefabrication and assembly construction profile steel concrete column with high performance concrete frame of the present invention, using partial precast department of assembly Divide cast-in-place thought, be made up of pre-erection and cast-in-place part, as shown in Figures 1 to 5, including:Prefabricated high performance concrete is empty Stem 1;The vertical muscle 2 in prefabricated high performance concrete open tubular column 1 is arranged at along column length direction;Prefabricated height is arranged at along column length direction Shaped steel 3 in performance concrete open tubular column 1;The stirrup being equidistantly layed on prefabricated 1 cross section of high performance concrete open tubular column 4, wherein indulge among muscle 2 and shaped steel 3 is respectively positioned on the encirclement of stirrup 4;And, it is filled in prefabricated high performance concrete open tubular column 1 Cast-in-place concrete 5 in center cavity.Wherein, prefabricated high performance concrete open tubular column 1, vertical muscle 2, shaped steel 3 and stirrup 4 constitute pre- Part processed, and cast-in-place part is mainly cast-in-place concrete 5.
Wherein, then as shown in Figures 2 and 3, shaped steel 3 is staggeredly made up of in cross two I-steel, and shaped steel 3 is in column length direction On, the two ends of prefabricated high performance concrete open tubular column 1 are stretched out, stirrup 4 can be welding compound stirrup or the high-strength hoop of continuous helical Muscle.As shown in Figure 4 and Figure 5, cast-in-place concrete 5 constitutes cast-in-place part.The concrete adopted by cast-in-place concrete 5 is according to different Need to be normal concrete, regeneration concrete, lightweight aggregate concrete, rubber concrete, sound absorption concrete or insulation Concrete.
Wherein:
1) pre-erection adopts high performance concrete, can improve the cracking resistance of prefabrication and assembly construction profile steel concrete column, durable Performance and fire resistance.
2) in the overhanging segment shaped steel in prefabricated type steel skeleton part, in construction and installation with the pre- buried column high-strength spiral shell of overhanging shaped steel Bolt is attached, and prefabrication and assembly construction profile steel concrete column can be facilitated to be connected with post.Also can be connected with beam 6 by bolt, such as Fig. 6 institutes Show.
3) for convenience of the making of the post hollow core point of prefabricated high performance concrete open tubular column 1, concrete rubber can be adopted Glue core is reused.
Concrete construction method of the present invention is:
1), in factory, pour prefabricated high performance concrete open tubular column 1 in concrete rubber core, be placed into vertical muscle 2, Shaped steel 3 and stirrup 4, complete pre-erection;
2), at the scene, the prefabricated high performance concrete open tubular column 1 with vertical muscle 2, shaped steel 3 and stirrup 4 is installed.
3), cast-in-place concrete 5 is poured to the center cavity of prefabricated high performance concrete open tubular column 1, and while whole pour beam, plate Part.
To sum up, the present invention is by for type steel skeleton of the pre-production with high performance concrete frame, and treats that in-site installation is good The casting concrete together with beam and floor again afterwards, it is ensured that its good globality.Wherein prefabricated high performance concrete shaped steel case Type skeleton generates effective hoop constraint power and improves its bearing capacity to the concrete of second pouring, while high-performance coagulation Native durability and ductility are preferable, and shaped steel provides certain lateral destruction that prevents and makees to prefabricated high performance concrete frame portion With.
The present invention effectively improves beam, the globality of post from structure, improves the anti-seismic performance of structure, and while very big Improve component deformability in transport with hoisting process, realize that prefabricated Steel Reinforced Concrete Members stress performance and performance are complete Face is improved to strengthen, and forms a kind of new and effective prefabrication and assembly construction steel reinforced concrete column technology.Prefabricated shaped steel proposed by the invention Concrete column technology has many significant performance advantages such as easy construction, the suitability are wide, overall performance is high, can extensively using building Build, the various reinforced concrete works structures such as Factory Building, bridge post, with wide application prospect, with important practical engineering value And economic results in society.
Present invention pre-erection on the basis of traditional prefabricated post adopts hollow section Hpc Columns, effectively improves pre- Part globality processed, is greatly reduced pre-erection deadweight, meets on-site hoisting requirement, be a kind of good method for prefabricating.According to Inventor proposes method for designing, can further optimize the thickness of high performance concrete frame, and shaped steel species, in precast concrete The parameters such as surface pattern, pre-erection concrete strength, cast-in-place concrete intensity and species (regeneration concrete, lightweight aggregate Concrete etc.) with realize this example optimal design.

Claims (3)

1. a kind of prefabrication and assembly construction profile steel concrete column with high performance concrete frame, it is characterised in that include:
Prefabricated high performance concrete open tubular column (1);
The prefabricated vertical muscle (2) being arranged at along column length direction in prefabricated high performance concrete open tubular column (1);
The prefabricated shaped steel (3) being arranged at along column length direction in prefabricated high performance concrete open tubular column (1), shaped steel (3) by Two I-steel are staggeredly constituted in cross;
The prefabricated stirrup (4) being equidistantly layed on prefabricated high performance concrete open tubular column (1) cross section, wherein indulges muscle (2) Among the encirclement of stirrup (4) is respectively positioned on shaped steel (3);
And,
The cast-in-place concrete (5) being filled in the center cavity of prefabricated high performance concrete open tubular column (1);
Wherein, shaped steel (3) on column length direction are stretched out the two ends of prefabricated high performance concrete open tubular column (1), and are being stretched out Part is connected with beam (6), and the concrete adopted by cast-in-place concrete (5) is for normal concrete, regeneration concrete, lightweight aggregate Concrete, rubber concrete, sound absorption concrete or thermal-insulating concrete.
2. the prefabrication and assembly construction profile steel concrete column with high performance concrete frame according to claim 1, it is characterised in that institute Stirrup (4) is stated for welding compound stirrup or continuous helical high-strength stirrup.
3. the construction method of the prefabrication and assembly construction profile steel concrete column with high performance concrete frame according to claim 1, its It is characterised by, step is as follows:
1), in factory, pour prefabricated high performance concrete open tubular column (1) in concrete rubber core, be placed into vertical muscle (2), Shaped steel (3) and stirrup (4), complete pre-erection;
2) prefabricated high performance concrete open tubular column (1) with vertical muscle (2), shaped steel (3) and stirrup (4), at the scene, is installed;
3), cast-in-place concrete (5) is poured to the center cavity of prefabricated high performance concrete open tubular column (1), and while whole pour beam, plate Part.
CN201410810524.7A 2014-12-22 2014-12-22 Prefabricated and assembly type steel reinforced concrete column with high-performance concrete frame and construction method Active CN104652705B (en)

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CN108755964B (en) * 2018-06-19 2020-12-22 西安建筑科技大学 Partially prefabricated assembly type steel concrete mixing column and construction method
CN110565878A (en) * 2019-09-20 2019-12-13 福州大学 CFRP-I-steel-UHPC combined column and preparation method thereof

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