Column foot structure and basement top plate supporting system

Abstract

The utility model relates to the technical field of constructional engineering, and discloses a column foot structure and a basement roof supporting system.The column foot structure comprises a lower supporting column beam, an upper supporting column beam and a lower supporting column beam, the column foot assembly comprises a column foot main body and a bearing supporting leg, the part, close to the lower supporting column beam, of the column foot main body forms a bearing section, and the bearing supporting leg is arranged on the bearing section; the lower supporting column beam can effectively support the bottom of the column base assembly on the lower portion of the column base assembly, after the upper supporting column beam enables the bearing section and the bearing supporting leg to be embedded in the upper supporting column beam at the same time, the bearing supporting leg and the column base body participate in stress together, and therefore the bearing section and the bearing supporting leg are not prone to falling off. The column foot structure in the form can be directly used as a support column beam transfer node on a basement top plate, so that the stability of the column foot assembly can be improved, the steel column can be directly mounted on the basement top plate and does not need to extend from a basement bottom plate, and the space in a basement at the position corresponding to the steel column can be released.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering, in particular to a column foot structure and a basement top plate supporting system. Background Art

[0002] The column foot is an important connection node in the building structure. The column foot can effectively connect the steel column to the foundation, and ensure that the upper structure can reliably withstand various external forces. The column foot types are usually divided into four types according to the position of the column foot: exposed, external, embedded and inserted. Exposed column foot and inserted column foot are more commonly used in light steel structure houses and heavy factories, and high-rise steel structure column foot generally adopts external or embedded type. In particular, the column foot of multi-story steel frame in earthquake-resistant areas should adopt embedded or external type.

[0003] At present, the steel columns installed on the basement ceiling in many building structures cannot be installed directly on the basement ceiling because the supporting capacity at the column foot of the steel columns cannot meet the demand. The steel columns usually need to be set directly from the bottom of the basement to the top. Therefore, space for the installation of steel columns needs to be reserved in the space of each floor of the basement. This form of steel columns not only leads to more steps and complicated procedures in the overall construction process, but also occupies a large amount of internal space in the basement. Utility Model Content

[0004] In view of this, the utility model provides a column foot structure and a basement top plate to solve the problem that the installation process of steel columns in the existing basement is cumbersome and takes up space.

[0005] In the first aspect, the utility model provides a column base structure for connecting a basement roof and a steel column, comprising: a lower column supporting beam, which is suitable for being arranged on the basement roof corresponding to the position of the steel column, and the lower column supporting beam has an installation position; a column base assembly, comprising a column base body and load-bearing legs, the column base body extending vertically and being arranged correspondingly at the installation position, the portion of the column base body close to the lower column supporting beam forming a load-bearing section, the load-bearing legs being arranged at the load-bearing section, and the load-bearing legs extending along the length direction of the lower column supporting beam; an upper column supporting beam, which is arranged correspondingly at the upper end of the lower column supporting beam, and the upper column supporting beam buries the load-bearing section and the load-bearing legs inside itself.

[0006] Beneficial effect: bearing legs are arranged on the bearing section, and the column supporting beams are constructed in layers. The lower column supporting beam can effectively support the bottom of the column foot assembly at the lower part of the column foot assembly. After the upper column supporting beam buries the bearing section and the bearing legs inside itself at the same time, the bearing legs will participate in the force together with the column foot body. This form of column foot structure can be directly used as a conversion node of the column supporting beam on the basement roof, which not only improves the stability of the column foot assembly, but also has higher overall structural strength. It can also evenly transfer the force given by the steel column to the upper column supporting beam and the lower column supporting beam, so that the steel column can be directly installed on the basement roof without extending from the basement floor, which can release the space in the basement under the corresponding position of the steel column, effectively solving the problem of cumbersome installation process and space occupation of steel columns in the existing basement.

[0007] In an optional embodiment, the column base structure also includes a supporting secondary beam, which extends along the width direction of the lower supporting column beam. The supporting secondary beam is arranged on one side of the installation position and is located below the load-bearing leg. The supporting secondary beam is used to support the load-bearing leg.

[0008] Beneficial effect: The supporting secondary beam can effectively support the load-bearing legs. Since the basement top slab is generally thin, adding the supporting secondary beam can effectively improve the local supporting strength of the basement top slab, allowing the column foot structure to carry larger and higher steel columns.

[0009] In an optional embodiment, the load-bearing legs are symmetrically arranged on both sides of the load-bearing section along the length direction of the lower supporting column beam, and a supporting secondary beam is correspondingly arranged below each load-bearing leg.

[0010] Beneficial effect: This form of load-bearing legs and supporting secondary beams not only bear the load more evenly, but also have higher structural strength.

[0011] In an optional embodiment, the column base assembly further includes a bearing plate, which is circumferentially arranged around the bearing section, and the bearing plate is located above the bearing legs.

[0012] Beneficial effect: The bearing plate can further improve the stability of the column foot assembly after being matched with the upper supporting column beam.

[0013] In an optional embodiment, the load-bearing legs are I-shaped structures.

[0014] Beneficial effects: This type of load-bearing section has higher strength, and its bending and torsion resistance is also stronger, which can better support the steel column.

[0015] In an optional embodiment, the column base assembly further includes an embedded structure, which is embedded in the installation position and is suitable for connection with the bearing section.

[0016] Beneficial effect: The embedded structure can better improve the connection reliability and stability between the column base assembly and the lower supporting column beam.

[0017] In an optional implementation, the embedded structure is connected to the bearing section via a fastening component.

[0018] Beneficial effect: The height of the column foot body can be adjusted by fastening components, thereby improving the flexibility of the construction process.

[0019] In an optional implementation, the embedded structure, the column base body and the load-bearing legs are all steel structures.

[0020] Beneficial effects: high structural strength and not easy to deform.

[0021] In an optional embodiment, the lower supporting column beam, the upper supporting column beam and the supporting secondary beam are all concrete components.

[0022] Beneficial effects: easy to manufacture and shape, and strong bearing capacity.

[0023] In a second aspect, the utility model also provides a basement roof support system, which includes: a basement roof; the above-mentioned column foot structure, which is arranged at a corresponding position of the basement roof; and a steel column connected to the column foot structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A three-dimensional schematic diagram showing the interior of a column base structure according to an embodiment of the utility model;

[0026] Figure 2 for Figure 1 The three-dimensional schematic diagram of the column base structure shown is when only the embedded structure is provided;

[0027] Figure 3 for Figure 2 The three-dimensional schematic diagram of the pre-embedded structure of the column foot structure and the column foot body after assembly;

[0028] Figure 4 for Figure 2 The three-dimensional schematic diagram of the upper supporting beam of the column base structure after casting is completed.

[0029] Description of reference numerals:

[0030] 1. Lower column supporting beam; 101. Installation position; 2. Column base assembly; 201. Column base body; 2011. Load-bearing section; 202. Load-bearing legs; 203. Load-bearing plate; 204. Embedded structure; 3. Upper column supporting beam; 4. Supporting secondary beam. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0032] Combine the following Figures 1 to 4 , describing an embodiment of the utility model.

[0033] In the related art, since the steel columns in the basement need to be poured with concrete inside the columns and the steel bars are tied and concrete is poured outside the steel columns, this steel and concrete composite structure has the characteristics of both steel structure and reinforced concrete structure. The construction process is relatively complicated, and the construction process of the additional steel columns will significantly increase the overall construction period.

[0034] According to an embodiment of the utility model, on the one hand, a column base structure is provided for connecting a basement roof with a steel column, the column base structure comprising: a lower column supporting beam 1, a column base assembly 2 and an upper column supporting beam 3, the lower column supporting beam 1 being suitable for being arranged on the basement roof corresponding to the position of the steel column, the lower column supporting beam 1 having an installation position 101, the column base assembly 2 comprising a column base body 201 and bearing legs 202, the column base body 201 extending vertically and being arranged correspondingly at the installation position 101, the portion of the column base body 201 close to the lower column supporting beam 1 forming a bearing section 2011, the bearing legs 202 being arranged at the bearing section 2011, the bearing legs 202 extending along the length direction of the lower column supporting beam 1, the upper column supporting beam 3 being arranged correspondingly at the upper end of the lower column supporting beam 1, the upper column supporting beam 3 burying the bearing section 2011 and the bearing legs 202 inside itself.

[0035] The column base structure of this embodiment is applied, and a bearing leg 202 is set on the bearing section 2011, and the column supporting beam is constructed in layers. The lower column supporting beam 1 can effectively support the bottom of the column base assembly 2 at the lower part of the column base assembly 2. After the upper column supporting beam 3 buries the bearing section 2011 and the bearing leg 202 inside itself at the same time, the bearing leg 202 will participate in the force together with the column base body 201. This form of column base structure can be directly used as a column supporting beam conversion node on the basement roof, which not only improves the stability of the column base assembly 2, but also has higher overall structural strength. It can also evenly transfer the force given by the steel column to the upper column supporting beam 3 and the lower column supporting beam 1, so that the steel column can be directly installed on the basement roof without being extended from the basement floor. The space in the basement under the corresponding position of the steel column can be released, which effectively solves the problem that the existing steel column installation process in the basement is cumbersome and occupies space.

[0036] In addition, since the column base structure of this embodiment allows the steel column to be directly installed on the basement ceiling, the process of installing the steel column inside the basement can be omitted, and the construction processes such as steel bar binding, formwork support, and concrete pouring required for the construction of steel columns at the same position are eliminated. While meeting the strength requirements of the steel column construction, the efficiency of the steel column construction and installation is greatly improved.

[0037] It can be understood that, as an alternative embodiment, the bearing legs 202 may not only extend along the length direction of the lower supporting column beam 1, but may also extend along the width direction or oblique direction of the lower supporting column beam 1, which is not strictly limited here.

[0038] In this embodiment, the column base structure also includes a supporting secondary beam 4, which extends along the width direction of the lower supporting column beam 1. The supporting secondary beam 4 is arranged on one side of the installation position 101 and is located below the load-bearing leg 202. The supporting secondary beam 4 is used to support the load-bearing leg 202. The supporting secondary beam 4 can effectively support the load-bearing leg 202. Since the thickness of the basement top slab is generally thin, adding the supporting secondary beam 4 can effectively improve the local supporting strength of the basement top slab, so that the column base structure can bear larger and higher steel columns, and can bear 20-meter-high steel columns.

[0039] Specifically, there is no limitation on the number of supporting secondary beams 4 , and it can be one or multiple supporting secondary beams 4 arranged at intervals to support the supporting secondary beams 4 at the same time, which can be flexibly selected according to strength requirements and construction convenience.

[0040] In this embodiment, the load-bearing legs 202 are symmetrically arranged on both sides of the load-bearing section 2011 along the length direction of the lower support column beam 1, and a supporting secondary beam 4 is correspondingly provided under each load-bearing leg 202. This form of load-bearing legs 202 and supporting secondary beams 4 not only bear more uniform force when bearing loads, but also have higher structural strength.

[0041] Specifically, Figure 2 and Figure 3 As shown, the supporting secondary beam 4 is arranged close to the installation position 101, wherein the size relationship between the supporting secondary beam 4 and the bearing leg 202 is not limited, and along the length direction of the lower supporting column beam 1, the size of the supporting secondary beam 4 can be larger than the size of the bearing leg 202, or the size of the supporting secondary beam 4 can be smaller than the size of the bearing leg 202, which can be flexibly selected according to needs.

[0042] In this embodiment, the column base assembly 2 also includes a bearing plate 203, which is circumferentially arranged on the bearing section 2011 and is located above the bearing legs 202. The bearing plate 203 can further enhance the stability of the column base assembly 2 after cooperation with the upper supporting column beam 3.

[0043] Specifically, Figure 3 As shown, the bearing plate 203 is a circular plate structure arranged along the circumference of the bearing section 2011. It can be understood that, as a replaceable embodiment, the bearing plate 203 can also be a rectangular plate structure and a polygonal plate structure arranged along the circumference of the bearing section 2011. It can be selected according to the corresponding needs as long as it can meet the strength requirements.

[0044] In this embodiment, the load-bearing legs 202 are of an I-shaped structure. This type of load-bearing legs 202 has a higher strength, and its bending and torsion resistance is also stronger, and can better support the steel column.

[0045] In this embodiment, the column base assembly 2 also includes an embedded structure 204, which is embedded in the installation position 101 and is suitable for connecting with the bearing section 2011. The embedded structure 204 can better improve the connection reliability and stability between the column base assembly 2 and the lower supporting column beam 1.

[0046] Among them, Figure 2 As shown, the embedded structure 204 is a ring-shaped structure embedded in the installation position 101. This type of embedded structure 204 has more contact surfaces with the lower support beam 1, and the connection is more stable.

[0047] It can be understood that, as an alternative implementation, the embedded structure 204 can also be a columnar structure, a terrace structure, etc.

[0048] In this embodiment, the embedded structure 204 is connected to the bearing section 2011 through a fastening component, and the height of the column base body 201 can be adjusted through the fastening component, thereby improving the flexibility of the construction process.

[0049] Specifically, the fastening components are bolts and nuts.

[0050] In this embodiment, the embedded structure 204, the column base body 201 and the bearing legs 202 are all steel structures, which have high structural strength and are not easily deformed.

[0051] In this embodiment, the lower supporting column beam 1, the upper supporting column beam 3 and the supporting secondary beam 4 are all concrete components, which are easy to manufacture and have a strong bearing capacity.

[0052] The construction process of the column base structure of this embodiment is described below:

[0053] The embedded structure 204 is pre-embedded, and the concrete of the main structural columns, beams, slabs, lower supporting beams 1 and supporting secondary beams 4 of the basement top plate is poured; the elevation of the embedded structure 204 is lower than the floor elevation of the basement top plate, and a closing net is set around the embedded structure 204 to leave a groove for installing the column foot body 201;

[0054] Install the column foot body 201. After the column foot body 201 is aligned with the bolts on the embedded structure 204, place the bearing legs 202 on the supporting secondary beam 4, lock the column foot bolts, and then pour the high-strength grouting material at the column foot;

[0055] Cast the upper supporting column beam 3 to the designed top elevation for the second time, and then cast the column foot concrete after the upper steel column is installed.

[0056] According to an embodiment of the utility model, on the other hand, a basement roof support system is provided, which includes: a basement roof, the above-mentioned column base structure and steel columns, the column base structure is arranged at a corresponding position of the basement roof, and the steel columns are connected to the column base structure.

[0057] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A column foot structure, used for connecting a basement top plate with a steel column, characterized in that: include: A lower column supporting beam (1) is adapted to be arranged on the basement top plate corresponding to the position of the steel column, and the lower column supporting beam (1) has an installation position (101); A column foot assembly (2), comprising a column foot body (201) and a bearing leg (202), wherein the column foot body (201) extends vertically and is arranged correspondingly to the installation position (101), a portion of the column foot body (201) close to the lower column supporting beam (1) forms a bearing section (2011), and the bearing leg (202) is arranged in the bearing section (2011), and the bearing leg (202) extends along the length direction of the lower column supporting beam (1); The upper column supporting beam (3) is arranged correspondingly at the upper end of the lower column supporting beam (1), and the upper column supporting beam (3) buries the bearing section (2011) and the bearing support leg (202) inside itself.

2. The column base structure according to claim 1, characterized in that: The column base structure further comprises a supporting secondary beam (4), wherein the supporting secondary beam (4) extends along the width direction of the lower supporting column beam (1), the supporting secondary beam (4) is arranged on one side of the installation position (101) and is located below the bearing leg (202), and the supporting secondary beam (4) is used to support the bearing leg (202).

3. The column base structure according to claim 2, characterized in that: The bearing legs (202) are symmetrically arranged on both sides of the bearing section (2011) along the length direction of the lower support beam (1), and the supporting secondary beam (4) is correspondingly arranged below each of the bearing legs (202).

4. The column base structure according to claim 1, characterized in that: The column base assembly (2) further comprises a bearing plate (203), wherein the bearing plate (203) is circumferentially arranged around the bearing section (2011), and the bearing plate (203) is located above the bearing legs (202).

5. The column base structure according to any one of claims 1 to 4, characterized in that: The load-bearing legs (202) are of an I-shaped structure.

6. The column base structure according to any one of claims 1 to 4, characterized in that: The column base assembly (2) further comprises a pre-embedded structure (204), wherein the pre-embedded structure (204) is embedded in the installation position (101) and is suitable for connection with the bearing section (2011).

7. The column base structure according to claim 6, characterized in that: The embedded structure (204) is connected to the bearing section (2011) via a fastening component.

8. The column base structure according to claim 6, characterized in that: The embedded structure (204), the column base body (201) and the bearing legs (202) are all steel structural parts.

9. The column base structure according to claim 2, characterized in that: The lower column supporting beam (1), the upper column supporting beam (3) and the supporting secondary beam (4) are all concrete components.

10. A basement roof support system, characterized in that: include: Basement ceiling; The column foot structure according to any one of claims 1 to 9 is arranged at a corresponding position of the basement top plate; A steel column is connected to the column base structure.

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