Building structure based on composite columns

Abstract

The utility model discloses a building structure based on composite columns, which comprises a plurality of composite columns which are connected with one another, each composite column comprises a concrete column shell and a reinforcement cage, and each reinforcement cage comprises a plurality of column longitudinal bars and horizontal bars which are arranged in the concrete column shell. A connecting section is arranged at the bottom end of the concrete column shell, the top ends of the column longitudinal bars protrude out of the concrete column shell, the connecting section comprises a connecting shell and grouting sleeves, the connecting shell is connected with the concrete column shell, the grouting sleeves are arranged at the bottom end of the connecting shell and opposite to the column longitudinal bars in position, and the communicating cavity communicates with the bottom ends of the multiple grouting sleeves. According to the utility model, the connecting section is arranged, and the bottom end of the column longitudinal bar of the composite column is positioned in the connecting section, so that the column longitudinal bar at the top end of the lower-layer composite column is inserted into the grouting sleeve for grouting when the composite column is hoisted in place, the column longitudinal bars of the two-layer composite column cannot interfere with each other, and the hoisting of the composite column is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of construction, in particular to a building structure based on superimposed columns. Background Art

[0002] In the development of prefabricated buildings in China, existing prefabricated concrete columns mostly use solid columns or hollow composite columns; solid columns have a very large self-weight, and the transportation and lifting efficiency is very low; the existing hollow composite columns hollow out part of the prefabricated part of the column, which reduces the self-weight.

[0003] After searching, the Chinese patent publication number CN217000490U discloses that it includes: a pre-embedded steel frame; a concrete shell, the concrete shell is adapted to be wrapped around the outside of the pre-embedded steel frame, and the pre-embedded steel frame is connected to the concrete shell, so that the pre-embedded steel frame and the concrete shell are fixed to form a prefabricated hollow column; and a stress-bearing longitudinal steel bar, a plurality of the stress-bearing longitudinal steel bars are provided, and the plurality of stress-bearing longitudinal steel bars are evenly inserted and tied on the inner side of the prefabricated hollow column.

[0004] The upper and lower ends of the load-bearing longitudinal reinforcement of this patent protrude from the concrete shell. When the upper layer of cavity columns is hoisted into place, the column longitudinal reinforcement and connectors outside the shell of the cavity columns of this layer will interfere with the column longitudinal reinforcement of the lower layer, causing inconvenience in construction. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a building structure based on composite columns.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A building structure based on composite columns includes multiple interconnected composite columns, wherein the composite columns include a concrete column shell and a steel cage, the steel cage includes multiple column longitudinal bars and horizontal bars arranged in the concrete column shell, the bottom end of the concrete column shell is provided with a connecting section, the top end of the column longitudinal bars protrudes from the concrete column shell, the connecting section includes a connecting shell and a grouting sleeve, the connecting shell is connected to the concrete column shell, the grouting sleeve is provided at the bottom end of the connecting shell, and the grouting sleeve is positioned opposite to the column longitudinal bars, and the connecting cavity is connected to the bottom ends of multiple grouting sleeves.

[0008] As a further solution of the present invention: the column longitudinal reinforcement and the horizontal reinforcement are connected to each other, a cavity is provided inside the concrete column shell, the cavity is connected from top to bottom, and the cross section of the cavity is polygonal, circular or elliptical.

[0009] As a further solution of the present invention: the cross-section of the outer contour of the concrete column shell is polygonal, circular or elliptical, and the thickness of the concrete column shell is not less than 80 mm.

[0010] As a further solution of the present invention, the connecting shell has the same combined shape as the concrete column shell and the cavity.

[0011] As a further solution of the present invention: an exhaust hole is provided at the top of the grouting sleeve, and a grouting hole is provided at one side of the communicating cavity.

[0012] As a further solution of the present invention: a connecting protrusion is provided on the top of the concrete column shell and is limitedly matched with the communicating cavity.

[0013] As a further solution of the present invention, one end of the exhaust hole and the grouting hole close to the center of the connection shell is inclined downward.

[0014] Compared with the prior art, the present invention provides a building structure based on composite columns, which has the following beneficial effects:

[0015] 1. The utility model is provided with a connecting section, and the bottom end of the column longitudinal reinforcement of the composite column is located in the connecting section. When hoisting and placing the composite column, the column longitudinal reinforcement at the top end of the lower composite column is inserted into the grouting sleeve for grouting. The column longitudinal reinforcements of the two layers of composite columns will not interfere with each other, which facilitates the hoisting of the composite column.

[0016] 2. The utility model is provided with a connecting protrusion. During the lifting process, the connecting protrusion is snapped into the bottom end of the connecting cavity to close the connecting cavity and at the same time limit the position of the connecting section so that the two superimposed columns are aligned with each other.

[0017] 3. The utility model sets the exhaust hole and the grouting hole at one end close to the center of the connection shell to be inclined downward, so that the mortar can be prevented from flowing out of the exhaust hole and the grouting hole when the mortar is not solidified after the grouting is completed.

[0018] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a building structure based on composite columns proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of a steel cage based on a composite column building structure proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of a connecting section of a building structure based on composite columns proposed in the present invention;

[0022] Figure 4 This is a schematic diagram of the local structure of a connecting section of a building structure based on composite columns proposed by the present invention.

[0023] In the figure: 1. Concrete column shell; 2. Steel cage; 3. Column longitudinal reinforcement; 4. Horizontal reinforcement; 5. Cavity; 6. Connecting section; 7. Connecting shell; 8. Connecting cavity; 9. Grouting sleeve; 10. Exhaust hole; 11. Grouting hole; 12. Connecting protrusion. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0026] Example 1

[0027] A building structure based on composite columns, such as Figures 1 to 4 As shown, it includes a plurality of interconnected composite columns, the composite column includes a concrete column shell 1 and a steel cage 2, the steel cage 2 includes a plurality of column longitudinal bars 3 and horizontal bars 4 arranged in the concrete column shell 1, the column longitudinal bars 3 and the horizontal bars 4 are interconnected, the bottom end of the concrete column shell 1 is provided with a connecting section 6, the top end of the column longitudinal bars 3 protrudes from the concrete column shell 1, the connecting section 6 includes a connecting shell 7 and a grouting sleeve 9, the interior of the concrete column shell 1 is provided with a cavity 5, the cavity 5 is through-through, and the cross-section of the cavity 5 is polygonal, circular or elliptical, the concrete column shell 1 The outer contour cross-section is polygonal, circular or elliptical, the thickness of the concrete column shell 1 is not less than 80 mm, the connecting shell 7 is connected to the concrete column shell 1, and the connecting shell 7 has the same combined shape as the concrete column shell 1 and the cavity 5. The grouting sleeve 9 is arranged at the bottom end of the connecting shell 7, and the grouting sleeve 9 is opposite to the column longitudinal reinforcement 3. The connecting cavity 8 connects the bottom ends of multiple grouting sleeves 9. An exhaust hole 10 is provided at the top of the grouting sleeve 9, and a grouting hole 11 is provided on one side of the connecting cavity 8. The top of the concrete column shell 1 is provided with a connecting protrusion 12 that is limited by the connecting cavity 8.

[0028] After the construction of the lower-level composite column is completed, concrete is applied to the top of the lower-level composite column, and the new composite column is hoisted by a crane. The top of the column longitudinal reinforcement 3 of the lower-level composite column is inserted into the grouting sleeve 9 above, and the connecting protrusion 12 is inserted into the connecting cavity 8. The two composite columns are aligned, and grouting is performed into the connecting cavity 8 through the grouting hole 11. The slurry enters multiple grouting sleeves 9 along the connecting cavity 8 at the same time. The air in the connecting cavity 8 and the grouting sleeve 9 is discharged from the exhaust hole 10. After the grouting is completed, concrete is poured into the connected cavity 5 in the two composite columns.

[0029] By providing the connecting section 6, the bottom end of the column longitudinal reinforcement 3 of the composite column is located in the connecting section 6. When hoisting into place, the column longitudinal reinforcement 3 at the top of the lower composite column is inserted into the grouting sleeve 9 for grouting. The column longitudinal reinforcement 3 of the two layers of composite columns will not interfere with each other, which facilitates the hoisting of the composite column.

[0030] By providing the connecting protrusion 12, during the hoisting process, the connecting protrusion 12 is snapped into the bottom end of the communicating cavity 8 to close the communicating cavity 8, while limiting the position of the connecting section 6 so that the two superimposed columns are aligned with each other.

[0031] Example 2

[0032] A building structure based on composite columns. This embodiment makes the following improvements on the basis of embodiment 1: Figure 3 As shown, the exhaust hole 10 and the grouting hole 11 are inclined downward at one end close to the center of the connecting shell 7 .

[0033] By setting the ends of the vent holes 10 and the grout holes 11 close to the center of the connection shell 7 to be inclined downward, the mortar can be prevented from flowing out of the vent holes 10 and the grout holes 11 when the mortar is not solidified after the grouting is completed.

[0034] Working principle: After the construction of the lower-level composite column is completed, concrete is applied to the top of the lower-level composite column, and the new composite column is hoisted by a crane. The top of the column longitudinal reinforcement 3 of the lower-level composite column is inserted into the grouting sleeve 9 above, and the connecting protrusion 12 is stuck in the connecting cavity 8. The two composite columns are aligned, and grouting is performed into the connecting cavity 8 through the grouting hole 11. The slurry enters multiple grouting sleeves 9 along the connecting cavity 8 at the same time. The air in the connecting cavity 8 and the grouting sleeve 9 is discharged from the exhaust hole 10. After the grouting is completed, concrete is poured into the connected cavity 5 in the two composite columns; by setting the exhaust hole 10 and the grouting hole 11 close to the center of the connecting shell 7 to be tilted downward, the mortar can be prevented from flowing out of the exhaust hole 10 and the grouting hole 11 when the mortar has not solidified after the grouting is completed.

[0035] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A building structure based on composite columns, comprising a plurality of composite columns connected to each other, characterized in that: The composite column comprises a concrete column shell (1) and a steel cage (2); the steel cage (2) comprises a plurality of column longitudinal bars (3) and horizontal bars (4) arranged in the concrete column shell (1); a connecting section (6) is provided at the bottom end of the concrete column shell (1); the top ends of the column longitudinal bars (3) protrude from the concrete column shell (1); the connecting section (6) comprises a connecting shell (7) and a grouting sleeve (9); the connecting shell (7) is connected to the concrete column shell (1); the grouting sleeve (9) is provided at the bottom end of the connecting shell (7), and the grouting sleeve (9) is positioned opposite to the column longitudinal bars (3); and the connecting cavity (8) is connected to the bottom ends of the plurality of grouting sleeves (9).

2. The building structure based on composite columns according to claim 1, characterized in that: The column longitudinal reinforcement (3) and the horizontal reinforcement (4) are connected to each other. A cavity (5) is provided inside the concrete column shell (1). The cavity (5) is through-connected from top to bottom, and the cross section of the cavity (5) is polygonal, circular or elliptical.

3. The building structure based on composite columns according to claim 1, characterized in that: The outer contour cross section of the concrete column shell (1) is polygonal, circular or elliptical, and the thickness of the concrete column shell (1) is not less than 80 mm.

4. The building structure based on composite columns according to claim 1, characterized in that: The connecting shell (7) has the same combined shape as the concrete column shell (1) and the cavity (5).

5. The building structure based on composite columns according to claim 1, characterized in that: An exhaust hole (10) is provided at the top end of the grouting sleeve (9), and a grouting hole (11) is provided on one side of the communicating cavity (8).

6. The building structure based on composite columns according to claim 1, characterized in that: The top end of the concrete column shell (1) is provided with a connecting protrusion (12) that is positionally engaged with the communicating cavity (8).

7. The building structure based on composite columns according to claim 5, characterized in that: The ends of the exhaust hole (10) and the grouting hole (11) close to the center of the connecting shell (7) are inclined downward.

Images