CN217439607U - Steel-encased reinforced concrete column - Google Patents

Abstract

The utility model discloses an outsourcing steel reinforced concrete post, indulge muscle and enclose cover stirrup including steel sheet, angle steel, batten plate, enclosure, the steel sheet is a plurality of, and is a plurality of the steel sheet sets up outside the concrete post, the angle steel sets up around the concrete post, the batten plate welds in the angle steel surface, the angle steel internal fixation has the connecting plate, fixed connection between steel sheet and the angle steel. Has the advantages that: the fixing effect is good, waste of steel in the reinforcing process is avoided, the batten plate interval arrangement is scientific, economic and reasonable, welding is not needed on site, the on-site workload is reduced, labor is saved, and the use is more convenient.

Description

Steel-encased reinforced concrete column

Technical Field

The utility model relates to a concrete column consolidates technical field, particularly, relates to an outsourcing steel reinforced concrete column.

Background

The externally-wrapped steel reinforcement method is a commonly used reinforcement process in the field of building structure reinforcement in China at present. The principle is that structural adhesive is adopted to stick corresponding section steel or steel plates on the surface of a reinforced member so as to enable the section steel or steel plates and the reinforced member to form a whole to be stressed together to achieve the purpose of reinforcement, but the structural adhesive is synthesized by epoxy resin and has the defect that welding cannot be carried out after high-temperature resistance sticking is carried out. Although there is a process for pouring structural adhesive at the edge sealing after the section steel is welded, the process is time-consuming and labor-consuming, needs edge sealing, glue injection and the like, and has poor fixing effect, labor-consuming and time-consuming.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an outsourcing steel reinforced concrete post to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an outsourcing steel reinforced concrete post, includes steel sheet, angle steel, batten board, encloses the cover and indulges the muscle and enclose cover stirrup, the steel sheet is a plurality of, and is a plurality of the steel sheet sets up outside concrete post, the angle steel sets up around concrete post, the batten board welds in the angle steel surface, the angle steel internal fixation has the connecting plate, fixed connection between steel sheet and the angle steel.

Further, the steel plate and the top of the angle steel are provided with holes through the floor slab, the cross section of the steel plate is fixedly connected with the beam through the arranged bolts, and the vertical section of the steel plate is fixedly connected with the beam through the arranged anchor bolts.

Further, the bottom ends of the steel plates and the angle steels at the bottom layer columns are made of C35 concrete, and the C35 concrete is fixed by the longitudinal bars and the hoops of the enclosure.

Further, the bottom of the C35 concrete is a new and old concrete joint surface, chemical planting bars are arranged on the new and old concrete joint surface, and the chemical planting bars are arranged at four column corners.

Furthermore, an epoxy mortar layer is filled in the steel plate and the angle steel at the section of the column, and an angle steel notch is formed in the bottom of the epoxy mortar layer.

Furthermore, the angle steel is matched with the shape and the size of the frame beam and the frame column.

Compared with the prior art, the utility model discloses following beneficial effect has: the fixing effect is good, waste of steel in the reinforcing process is avoided, the batten plate interval arrangement is scientific, economic and reasonable, welding is not needed on site, the on-site workload is reduced, labor is saved, and the use is more convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of an encased steel reinforced concrete column according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a column cross section of an outer steel-encased concrete column according to an embodiment of the present invention;

fig. 3 is a partial structural sectional view of an exterior steel reinforced concrete column according to an embodiment of the present invention;

fig. 4 is a schematic partial structure diagram of an angle iron according to an embodiment of the present invention;

fig. 5 is a cross-sectional view of the structure of fig. 1 according to an embodiment of the present invention;

fig. 6 is a structural sectional view of fig. 2 according to an embodiment of the present invention.

Reference numerals:

1. forming holes in the floor slab; 2. a bolt; 3. a steel plate; 4. angle steel; 5. a batten plate; 6. an anchor bolt; 7. c35 concrete; 8. combining the new concrete and the old concrete; 9. chemical bar planting; 10. an epoxy mortar layer; 11. cutting angle steel; 12. a connecting plate; 13. a frame beam; 14. a frame column; 15. encircling longitudinal ribs; 16. and (5) hooping the sleeve.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person skilled in the art without creative work belong to the scope of protection of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Please refer to fig. 1-3, according to the embodiment of the present invention, an external steel reinforced concrete column comprises a steel plate 3, an angle steel 4, a batten plate 5, a shroud longitudinal rib 15 and a shroud stirrup 16, wherein the steel plate 3 is a plurality of steel plates 3 is arranged outside the concrete column, the angle steel 4 is arranged around the concrete column, the batten plate 5 is welded on the outer surface of the angle steel 4, a connecting plate 12 is fixed in the angle steel 4, and the steel plate 3 and the angle steel 4 are fixedly connected.

Through the utility model discloses an above-mentioned scheme:

referring to fig. 1 and 5, the tops of the steel plates 3 and the angle steels 4 are provided with holes 1 through floor slabs, the cross sections of the steel plates 3 and the angle steels 4 are fixedly connected with beams through the arranged bolts 2, the vertical sections of the steel plates are fixedly connected with the beams through the arranged anchor bolts 6, the bottom ends of the steel plates 3 and the angle steels 4 at the bottom layer columns are provided with C35 concrete 7, the C35 concrete 7 is fixed by the arranged enclosure longitudinal bars 15 and enclosure stirrups 16, the bottoms of the C35 concrete 7 are new and old concrete junction surfaces 8, chemical plant bars 9 are arranged on the new and old concrete junction surfaces 8, and the chemical plant bars 9 are arranged at four column corners;

referring to fig. 2 and 6, an epoxy mortar layer 10 is filled in a steel plate 3 and an angle steel 4 at the section of a column, and an angle steel notch 11 is formed at the bottom of the epoxy mortar layer 10;

referring to fig. 4, the angle iron 4 is matched with the shape and size of the frame beam 13 and the frame column 14.

In the specific application:

(1) and (3) planting ribs on column bases: drilling and planting bars at four column corners of the steel column to be externally coated according to a bar planting process, wherein the diameter of each bar is 22mm, and the depth of each bar planting is 26 d;

(2) treating the interface of the original concrete column: polishing a concrete column, wherein the edge of the column is polished to be a round angle not less than 20mm, cleaning dust on the surface of the concrete, and keeping the concrete dry;

(3) manufacturing steel, welding and installing: the steel skeleton and the steel ferrule are manufactured on site according to the original structural column, and all steel is installed and roughened by using a grinder; a gap of 2mm-3mm is reserved between the angle steel 4 and the surface of the concrete; the batten plate 5 is welded on the outer surface of the angle steel 4; waiting steel bars are planted at the positions of the lintel column nodes and welded on the angle steels 4; reinforcing hoop plates are welded at the upper and lower parts of the beam-column joint and the upper and lower sealing parts, and anchor bolts 6 are planted;

(4) sealing the edge of the section steel and installing a glue injection pipe: sealing the edges of the batten plates 5 and the angle steels 4 by using epoxy cement, and mounting glue injection nozzles on each angle steel 4 at intervals of 1 m;

(5) pressure glue injection: pressing the glue solution from bottom to top by using a pressure pump, and replacing the vent hole to press the glue solution when the glue solution overflows from the vent hole;

(6) protecting the outer surface of steel: and after the glue injection is finished, coating antirust paint on the outer surface of the steel twice, and then coating a 25mm thick M7.5 cement mortar protective layer.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The utility model provides an outsourcing steel reinforced concrete post, its characterized in that includes steel sheet (3), angle steel (4), batten plate (5), encloses that the cover indulges muscle (15) and encloses cover stirrup (16), steel sheet (3) are a plurality of, and are a plurality of steel sheet (3) set up outside the concrete post, angle steel (4) set up around the concrete post, batten plate (5) weld in angle steel (4) surface, angle steel (4) internal fixation has connecting plate (12), fixed connection between steel sheet (3) and the angle steel (4).

2. An encased steel reinforced concrete column as claimed in claim 1, characterised in that the steel plate (3) and angle steel (4) are perforated (1) in the floor and are fixed in cross section to the beam by means of bolts (2) and in vertical section to the beam by means of anchor bolts (6).

3. An outsourcing steel reinforced concrete column as claimed in claim 1, wherein the bottom ends of the steel plate (3) and the angle steel (4) at the bottom layer column are fixed by C35 concrete (7), and the C35 concrete (7) is fixed by the arranged longitudinal surrounding reinforcement (15) and the surrounding hoop reinforcement (16).

4. An outsourcing steel reinforced concrete column as claimed in claim 3, wherein the C35 concrete (7) is provided with a new and old concrete joint surface (8) at the bottom, chemical steel planting bars (9) are arranged on the new and old concrete joint surface (8), and the chemical steel planting bars (9) are arranged at four corners of the column.

5. An outsourcing steel reinforced concrete column according to claim 1, characterized in that the steel plate (3) and the angle steel (4) at the column section are filled with epoxy mortar layer (10), and the bottom of the epoxy mortar layer (10) is provided with an angle steel notch (11).

6. Column of outsourcing steel reinforced concrete according to claim 1, characterised in that the angle steel (4) is adapted to the shape and size of the frame beams (13) and the frame columns (14).

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