Steel elevator column foot fixing structure

Abstract

The utility model discloses a steel elevator column foot fixing structure. The steel elevator column foot fixing structure comprises a steel column, a steel beam and a pouring body. The bottom end of the steel column is fixed to the supporting body. The adjacent steel columns are connected through steel beams, and the steel beams are arranged close to the bottom ends of the steel columns. The steel beams and the connecting joints of the steel beams and the steel columns are poured into the pouring body. According to the steel elevator column foot fixing structure, the built-in effect of the foundation on the upper steel elevator is enhanced, the lateral force resisting rigidity of the upper structure of the steel elevator is improved, horizontal vibration is prevented from being generated when the elevator runs, and the using comfort of the elevator is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of building structure design, and particularly relates to a fixing structure for a steel elevator column foot. Background Art

[0002] In the construction of new public buildings or the renovation of existing buildings, there are more and more multi-story steel elevators independent of the main building. Since such steel elevators are mostly single-frame structures, and the steel columns of steel stairways generally have a large slenderness ratio and relatively weak structural lateral stiffness, horizontal vibration may occur when the elevator operates, affecting the comfort of elevator use.

[0003] In practical engineering, this problem is mostly solved in the following three ways. One is to set a horizontal support between the steel stairway and the main body to reduce the horizontal vibration of the steel elevator; the second is to set a steel support between the steel columns of the steel elevator to improve the lateral force resistance stiffness of its upper part; the third is to strengthen the column foot structure between the steel elevator and the main structure, such as adopting an embedded column foot, to improve the fixing effect of the foundation on the upper steel elevator.

[0004] For the first solution, when the main structure is a small existing building, it is also necessary to evaluate the impact of setting the horizontal support on the safety and seismic performance of the original main structure, which is relatively complex; the second solution of setting the steel support has an impact on the building elevation effect of the steel elevator; for the third solution, when the steel elevator is located on the main structure beam, the main structure beam is limited by the lower clear height and has limited dimensions, and cannot provide enough anchorage depth for the local column foot of the steel column. Generally, stress concentration occurs at the column foot position, which may cause local anchorage failure of this part of the main body. And the side length of the embedded column foot is generally increased by 400 mm compared with the side length of the steel column section. The enlarged column foot will protrude into the inner side of the elevator pit, affecting the clear width of the pit, and further forcing the size of the upper steel elevator to be further increased. Content of the Utility Model

[0005] The purpose of the utility model is to disclose a fixing structure for a steel elevator column foot, which improves the structural stability of the elevator column foot through the structural design of the fixing structure for the steel elevator column foot of the utility model.

[0006] The purpose of the utility model is realized by the following technical solutions:

[0007] A fixing structure for a steel elevator column foot, the fixing structure for the steel elevator column foot includes: a steel column, a steel beam and a casting body; the bottom end of the steel column is fixed to a support body;

[0008] Adjacent steel columns are connected by steel beams, and the steel beams are arranged close to the bottom end of the steel columns;

[0009] Each steel beam and its connection node with the steel column are arranged in the casting body.

[0010] According to a preferred embodiment, a number of stud bolts are also provided on each steel beam.

[0011] According to a preferred embodiment, the stud bolts are connected to the steel beam by welding.

[0012] According to a preferred embodiment, a steel bar mesh is tied between each stud bolt.

[0013] According to a preferred embodiment, a buried plate is provided at the bottom end of the steel column, and each buried plate is connected to the support by anchor bolts.

[0014] According to a preferred embodiment, the buried plate is pre-embedded in the support.

[0015] According to a preferred embodiment, the steel column is connected to the buried plate by welding.

[0016] According to a preferred embodiment, the steel beam and the steel column are connected by bolts or welds.

[0017] According to a preferred embodiment, the height difference between the bottom end of the steel beam and the steel column is 150 mm.

[0018] According to a preferred embodiment, the cross-section of the steel beam is a box-shaped cross-section.

[0019] The main solution of the present invention and its various further alternative solutions can be freely combined to form multiple solutions, all of which are solutions that can be adopted and claimed by the present invention. Those skilled in the art can understand that there are various combinations according to the prior art and common general knowledge after understanding the solution of the present invention, and all of them are the technical solutions to be protected by the present invention, and will not be enumerated here.

[0020] Advantages of the present invention:

[0021] It enhances the fixing effect of the foundation on the upper steel elevator, improves the lateral force resistance stiffness of the upper structure of the steel elevator, avoids horizontal vibration during the operation of the elevator, and ensures the comfort of elevator use.

[0022] It avoids the influence of setting steel supports for the steel elevator on the building facade effect; it avoids the need to evaluate the impact of setting horizontal supports between the steel elevator and the main structure on the safety and seismic performance of the original main structure; it avoids the stress concentration at the column foot position when the lower main structure is a beam and the use of embedded column feet, resulting in local anchorage failure of the main body at this part; it avoids the impact of using embedded column feet on the clear height of the elevator pit. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic plan view of the rigid elevator column foot at elevation H1 of the present invention;

[0024] Figure 2It is a schematic plan view of the rigid elevator column foot at the elevation of H2 of the present utility model;

[0025] Figure 3 It is Figure 2 the schematic A-A sectional view of;

[0026] Figure 4 It is Figure 2 the schematic B-B sectional view of;

[0027] Wherein, 100 - support body, 101 - steel column, 102 - embedded plate, 103 - anchor bolt, 104 - steel beam, 105 - stud, 106 - casting body. Specific embodiments

[0028] The following specific examples illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0029] It should be noted that: Similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0030] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this utility model is usually placed when in use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0031] In addition, the terms "horizontal", "vertical", "hanging", etc. do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0032] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0033] In addition, the present utility model points out that in the present utility model, if the specific structures, connection relationships, position relationships, power source relationships, etc. involved are not specifically written, then the structures, connection relationships, position relationships, power source relationships, etc. involved in the present utility model are all those that can be known by those skilled in the art on the basis of the prior art without creative labor.

[0034] Reference Figure 1 As shown in the figure, a steel elevator column base fixing structure is shown in the figure. The steel elevator column base fixing structure includes: a steel column 101, a steel beam 104, and a casting body 106.

[0035] The steel beam 104 and the steel column 101 are connected by bolts or welds to form the first-layer horizontal steel frame. The bottom elevation of the steel beam 104 is about 150 mm away from the lower end of the steel column (at elevation H1). The lower end of the steel column 101 is welded to the embedded plate 102 embedded in the main structure, so that the steel column 101 of the steel elevator is initially positioned on the main structure.

[0036] In the range of elevation H1 to elevation H2 on the surfaces of the steel beam 104 and the steel column 101, a number of stud bolts 105 are arranged at certain intervals, and then the steel bars are tied, and the concrete structure in the range of elevation H1 to elevation H2 is poured. The first-layer horizontal steel frame at the steel elevator column base is buried in the main structure or the reinforced concrete secondary counter-cantilever on the main structure.

[0037] Embodiment

[0038] Taking a steel elevator placed on a reinforced concrete beam as an example, a box-section steel column 101 with a cross-section of 250*250*14*14 (section height * width * left and right wall thickness * upper and lower wall thickness) is selected, a box-section steel beam 104 with a cross-section of 150*200*12*12 (section height * width * left and right wall thickness * upper and lower wall thickness) is selected, the thickness t of the embedded plate 102 is 18 mm, the diameter d of the bolt is 18 mm, the diameter of the stud bolt 105 is 18 mm, the length is 70 mm, and the steel material is all Q335.

[0039] The steel column 101 and the steel beam 104 are connected by fillet welds to form the first - layer horizontal steel frame between elevations H1 and H2. The bottom elevation of the steel beam 104 is 150 mm away from the lower end (elevation HI) of the steel column 101. The lower end of the steel column 101 and the embedment plate 102 embedded in the main structure are connected by fillet - welded circumferential welding, preliminarily positioning the steel column 101 of the steel elevator on the main structure. A number of stud bolts 105 are arranged on the surfaces of the steel beam 104 and the steel column 101 in the range of elevation H1 to elevation H2 at an interval of 150 mm. Then, the steel bars are tied and the concrete structure with dimensions of 400 mm * 500 mm (width * height) in the range of elevation H1 to elevation H2 is poured. The first - layer horizontal steel frame at the column foot of the steel elevator is embedded in the secondary inverted beam of the reinforced concrete on the main structure.

[0040] The fixed structure of the steel - elevator column foot of the present utility model enhances the anchoring effect of the foundation on the upper - part steel elevator, improves the lateral - force resistance stiffness of the upper structure of the steel elevator, avoids horizontal vibration during the operation of the elevator, and ensures the comfort of elevator use.

[0041] It avoids the influence of setting steel supports for the steel elevator on the building facade effect; it avoids the need to evaluate the impact of the horizontal support on the safety and seismic performance of the original main structure when setting a horizontal support between the steel elevator and the main structure; it avoids the stress concentration at the column - foot position and the resulting local anchorage failure of the main part at this position when the lower - part main structure is a beam and an embedded column - foot is adopted; it avoids the influence on the clear height of the elevator pit when an embedded column - foot is adopted.

[0042] The above - mentioned are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A steel elevator column foot fixing structure, characterized in that: The steel elevator column foot fixing structure comprises: a steel column (101), a steel beam (104) and a cast body (106); The bottom end of the steel column (101) is fixed to the support body (100); Adjacent steel columns (101) are connected via steel beams (104), and the steel beams (104) are arranged close to the bottom ends of the steel columns (101); Each steel beam (104) and its connection node with the steel column (101) are cast in the cast body (106).

2. The steel elevator column foot fixing structure according to claim 1, characterized in that: Each steel beam (104) is also provided with a plurality of bolts (105).

3. The steel elevator column foot fixing structure according to claim 2, characterized in that: The bolt (105) is welded to the steel beam (104).

4. The steel elevator column foot fixing structure according to claim 2, characterized in that: A steel mesh is tied between each bolt (105).

5. The steel elevator column foot fixing structure according to claim 1, characterized in that: The bottom end of the steel column (101) is provided with an embedded plate (102), and each embedded plate (102) is connected to the support body (100) via an anchor bolt (103).

6. The steel elevator column foot fixing structure according to claim 5, characterized in that: The embedded plate (102) is pre-embedded in the support body (100).

7. The steel elevator column foot fixing structure according to claim 5, characterized in that: The steel column (101) is connected to the buried plate (102) by welding.

8. The steel elevator column foot fixing structure according to claim 1, characterized in that: The steel beam (104) is connected to the steel column (101) via bolts or welds.

9. The steel elevator column foot fixing structure according to claim 1, characterized in that: The height difference between the bottom ends of the steel beam (104) and the steel column (101) is 150 mm.

10. The steel elevator column foot fixing structure according to claim 1, characterized in that: The cross section of the steel beam (104) is a box-shaped cross section.

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