Elevator derrick foundation pit end post connecting structure

Abstract

The utility model belongs to the technical field of elevator shaft structures, and particularly relates to an elevator shaft frame foundation pit end column connecting structure. The end column structure is additionally arranged at the position, corresponding to the derrick steel column foot, of the end portion of the foundation pit wall, the derrick steel column foot anchor bolt penetrates through the column foot steel plate to be directly anchored in the end column structure, the section size of concrete at the position of the column foot can be increased, and a large space is reserved for embedding of the column foot anchor bolt. The minimum size from the center point of the column foot anchor bolt to the edge of the end column structure fully meets the building specification requirement, so that the overall stability and safety of the elevator derrick are improved, accurate positioning of the column foot anchor bolt is facilitated, and steel bar binding is clear; the column foot anchor bolt of the derrick steel column is not anchored in the concrete foundation pit wall, concrete can be vibrated compactly, the requirement for the width of the elevator derrick concrete foundation pit wall can be effectively lowered, and then the overall concrete pouring cost of an elevator derrick foundation pit is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of elevator shaft structures, and in particular relates to an elevator shaft frame foundation pit end column connection structure. Background Art

[0002] Elevators play an important role in multi-story buildings. During the installation process, a supporting elevator shaft frame needs to be set up to facilitate the installation and use of the elevator. Most of the existing old multi-story buildings do not have elevators installed. However, with the improvement of people's living standards, people have higher and higher requirements for building facilities, which makes people more and more dissatisfied with the situation that old multi-story buildings do not have elevators. However, since no elevator shaft frame is reserved during the construction of old multi-story buildings, it is necessary to install an elevator outside the building. The elevator shaft frame is an important part of the elevator equipment. It can provide a closed space, play a role in sound insulation and shock absorption, and protect the safe operation of the elevator.

[0003] The derrick steel column is an important supporting part of the elevator derrick. The traditional elevator derrick steel column is usually directly anchored in the 300mm wide concrete foundation pit wall through the column foot anchor bolts. The minimum size from the center point of the embedded column foot anchor bolt to the edge of the derrick foundation pit wall concrete is less than 100mm, which is difficult to meet the requirements of building specifications and poses a safety hazard. The existing technology adopts a solution of overall thickening and pouring of the concrete foundation pit wall to increase the overall thickness of the derrick foundation pit wall to address the above problems, but this solution greatly increases the construction cost of the elevator derrick foundation pit and is difficult to promote and use on a large scale. Utility Model Content

[0004] The technical problem to be solved by the utility model is: in view of the deficiencies of the prior art, an elevator shaft frame foundation pit end column connection structure is provided, by adding an end column structure at a position corresponding to the column foot of the shaft frame steel column at the end of the foundation pit wall, the buried column foot anchor bolts can fully meet the standard size requirements, effectively improve the overall stability and safety of the elevator shaft frame, and save the foundation pit concrete construction cost.

[0005] The technical solution adopted by the utility model to solve the above technical problems is:

[0006] An elevator shaft frame foundation pit end column connection structure includes a plurality of end column structures 1 added to the elevator shaft frame foundation pit side wall 2, the end column structure 1 is arranged at the four corner connections of the elevator shaft frame foundation pit side wall 2, a shaft frame steel column 3 is connected above the end column structure 1, the shaft frame steel column 3 is anchored to the end column structure 1 by a column foot anchor bolt 5, a column foot steel plate 4 is padded between the bottom of the shaft frame steel column 3 and the end column structure 1, and the size of the end column structure 1 is adapted to the number and arrangement position of the column foot anchor bolts 5.

[0007] Preferably, the end column structure 1 is a square column structure as a whole, and the part of the square column structure located in the elevator shaft frame foundation pit is provided with an end column recessed corner 6, and the inner surface of the end column recessed corner 6 is flush with the inner surface of the corresponding elevator shaft frame foundation pit side wall 2.

[0008] Preferably, the column base steel plate 4 is a square steel plate as a whole, and the portion of the square steel plate located in the elevator shaft frame foundation pit is provided with a steel plate concave corner 7, and the steel plate concave corner 7 is flush with the inner surface of the corresponding end column concave corner 6.

[0009] Preferably, a plurality of stiffening ribs 8 are connected between the derrick steel column 3 and the corresponding column base steel plate 4 .

[0010] Preferably, the column foot anchor bolt 5 passes through the corresponding column foot steel plate 4 and is anchored in the end column structure 1 , thereby fixing the corresponding derrick steel column 3 to the end column structure 1 .

[0011] Preferably, a reserved shear groove 9 is opened in the middle of the upper surface of the end column structure 1, and a shear key 10 matched with the reserved shear groove 9 is provided at the bottom of the column base steel plate 4.

[0012] Preferably, a 50 mm thick C30 slightly expansive concrete layer 11 is cast at the connection between the column base steel plate 4 and the upper surface of the end column structure 1 .

[0013] Preferably, the column base anchor bolts 5 are evenly arranged along the edge of the column base steel plate 4 .

[0014] Compared with the prior art, the utility model has the following main advantages:

[0015] 1. The utility model adds an end column structure at the position corresponding to the column foot of the derrick steel column at the end of the foundation pit wall, and directly anchors the column foot anchor bolts of the derrick steel column through the column foot steel plate to the end column structure, which can increase the cross-sectional size of the concrete at the column foot, reserve a large space for the embedding of the column foot anchor bolts, and make the minimum size from the center point of the column foot anchor bolt to the edge of the end column structure fully meet the requirements of the building code, thereby improving the overall stability and safety of the elevator derrick, and is conducive to the accurate positioning of the column foot anchor bolts, and facilitates the clear binding of steel bars;

[0016] 2. The anchor bolts of the derrick steel column base of the utility model are not anchored in the concrete foundation pit wall, which is conducive to the compaction of the concrete and can effectively reduce the width requirement of the elevator derrick concrete foundation pit wall, thereby saving the overall concrete pouring cost of the elevator derrick foundation pit.

[0017] 3. The end column structure and the column base steel plate of the utility model are both concave angle structures, so that the inner wall of the concave angle is flush with the inner wall of the foundation pit, which can effectively prevent the end column structure from occupying the internal space of the elevator shaft pit and ensure the smooth installation of the elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an overall schematic diagram of the end column structure of the elevator derrick foundation pit in the embodiment of the utility model;

[0019] Figure 2 It is a partial schematic diagram of a single end column structure in an embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the connection of the anchor bolts at the base of the derrick steel column in the embodiment of the utility model;

[0021] Figure 4 for Figure 2 Cross-sectional view of AA.

[0022] In the figure: 1-end column structure; 2-side wall of elevator derrick foundation pit; 3-derrick steel column; 4-column foot steel plate; 5-column foot anchor bolt; 6-end column concave angle; 7-steel plate concave angle; 8-stiffening rib; 9-reserved shear groove; 10-shear key; 11-concrete layer. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0024] It should be pointed out that, according to the needs of implementation, the various steps / components described in this application can be split into more steps / components, and two or more steps / components or partial operations of steps / components can be combined into new steps / components to achieve the purpose of the present utility model.

[0025] Embodiment 1: This embodiment provides an elevator shaft frame foundation pit end column structure, such as Figures 1 to 4 As shown, it includes multiple end column structures 1 added to the side wall 2 of the elevator derrick foundation pit, the end column structure 1 is arranged at the four corner connections of the side wall 2 of the elevator derrick foundation pit, the end column structure 1 is connected with a derrick steel column 3 above, the derrick steel column 3 is anchored to the end column structure 1 by a column foot anchor bolt 5, a column foot steel plate 4 is padded between the bottom of the derrick steel column 3 and the end column structure 1, and the size of the end column structure 1 is adapted to the number and arrangement position of the column foot anchor bolts 5.

[0026] Furthermore, the end column structure 1 is a square column structure as a whole, and the part of the square column structure located in the elevator shaft frame foundation pit is provided with an end column recessed corner 6, and the inner surface of the end column recessed corner 6 is flush with the inner surface of the corresponding elevator shaft frame foundation pit side wall 2.

[0027] Furthermore, the column base steel plate 4 is a square steel plate as a whole, and the portion of the square steel plate located in the elevator shaft frame foundation pit is provided with a steel plate concave corner 7, and the steel plate concave corner 7 is flush with the inner surface of the corresponding end column concave corner 6.

[0028] Furthermore, a plurality of stiffening ribs 8 are connected between the derrick steel column 3 and the corresponding column base steel plate 4 .

[0029] Furthermore, the column foot anchor bolt 5 passes through the corresponding column foot steel plate 4 and is anchored in the end column structure 1 , thereby fixing the corresponding derrick steel column 3 to the end column structure 1 .

[0030] Furthermore, a reserved shear groove 9 is opened in the middle of the upper surface of the end column structure 1, and a shear key 10 adapted to the reserved shear groove 9 is provided at the bottom of the column base steel plate 4.

[0031] Furthermore, a 50 mm thick C30 slightly expansive concrete layer 11 is cast at the connection between the column base steel plate 4 and the upper surface of the end column structure 1 .

[0032] Furthermore, the column base anchor bolts 5 are evenly arranged along the edge of the column base steel plate 4 .

[0033] Embodiment 2: This embodiment provides an elevator shaft frame foundation pit end column structure, in which a concrete end column structure is added at the end of the elevator shaft frame foundation pit side wall corresponding to the position of the shaft frame steel column column foot anchor bolt, thereby increasing the cross-sectional size of the concrete at the column foot, and reserving a larger space for the burial of the column foot anchor bolt.

[0034] Furthermore, the anchor bolts of the derrick steel column base are not directly anchored on the side walls of the elevator derrick foundation pit, so the side walls of the elevator derrick foundation pit are cast with the minimum thickness that meets the requirements of building regulations, thereby saving concrete casting costs.

[0035] Furthermore, the end column structure and the portion of the column base steel plate located in the foundation pit are both concave angle structures, and the inner wall of the concave angle is flush with the inner wall of the foundation pit, which can effectively prevent the end column structure from occupying the internal space of the elevator shaft pit.

[0036] When implementing:

[0037] Firstly, according to the overall size of the elevator derrick and mechanical calculation analysis, the number and arrangement of the anchor bolts at the foot of the derrick steel column and the size and burial depth of the shear key are determined;

[0038] Then, according to the minimum distance requirement between the center of the column foot anchor bolt and the foundation pit wall in the building code, determine the size of the additional end column structure under the column foot and the corresponding column foot steel plate size;

[0039] Finally, the reinforcement of the end column structure is determined according to the size of the end column structure.

[0040] Furthermore, all parts of the present application that are not described in detail are the same as the prior art or are implemented using the prior art.

[0041] In summary:

[0042] 1. The utility model adds an end column structure at the position corresponding to the column foot of the derrick steel column at the end of the foundation pit wall, and directly anchors the column foot anchor bolts of the derrick steel column through the column foot steel plate to the end column structure, which can increase the cross-sectional size of the concrete at the column foot, reserve a large space for the embedding of the column foot anchor bolts, and make the minimum size from the center point of the column foot anchor bolt to the edge of the end column structure fully meet the requirements of the building code, thereby improving the overall stability and safety of the elevator derrick, and is conducive to the accurate positioning of the column foot anchor bolts, and facilitates the clear binding of steel bars;

[0043] 2. The anchor bolts of the derrick steel column base of the utility model are not anchored in the concrete foundation pit wall, which is conducive to the compaction of the concrete and can effectively reduce the width requirement of the elevator derrick concrete foundation pit wall, thereby saving the overall concrete pouring cost of the elevator derrick foundation pit.

[0044] 3. The end column structure and the column base steel plate of the utility model are both concave angle structures, so that the inner wall of the concave angle is flush with the inner wall of the foundation pit, which can effectively prevent the end column structure from occupying the internal space of the elevator shaft pit and ensure the smooth installation of the elevator.

[0045] The above embodiments are only used to illustrate the design ideas and features of the utility model, and their purpose is to enable those skilled in the art to understand the content of the utility model and implement it accordingly. The protection scope of the utility model is not limited to the above embodiments. Therefore, any equivalent changes or modifications made based on the principles and design ideas disclosed by the utility model are within the protection scope of the utility model.

Claims

1. An elevator derrick foundation pit end column connection structure, characterized in that: The invention comprises a plurality of end column structures (1) added to the side wall (2) of the elevator derrick foundation pit, wherein the end column structures (1) are arranged at the four corner connections of the side wall (2) of the elevator derrick foundation pit, and a derrick steel column (3) is connected to the top of the end column structure (1), and the derrick steel column (3) is anchored to the end column structure (1) through a column foot anchor bolt (5), and a column foot steel plate (4) is padded between the bottom of the derrick steel column (3) and the end column structure (1), and the size of the end column structure (1) is compatible with the number and arrangement position of the column foot anchor bolt (5).

2. The elevator derrick foundation pit end column connection structure according to claim 1, characterized in that: The end column structure (1) is a square column structure as a whole, and the portion of the square column structure located in the elevator shaft frame foundation pit is provided with an end column recess (6), and the inner surface of the end column recess (6) is flush with the inner surface of the corresponding elevator shaft frame foundation pit side wall (2).

3. The elevator derrick foundation pit end column connection structure according to claim 2, characterized in that: The column foot steel plate (4) is a square steel plate as a whole, and the portion of the square steel plate located in the elevator shaft frame foundation pit is provided with a steel plate concave corner (7), and the steel plate concave corner (7) is flush with the inner surface of the corresponding end column concave corner (6).

4. The elevator derrick foundation pit end column connection structure according to claim 1, characterized in that: A plurality of stiffening ribs (8) are connected between the derrick steel column (3) and the corresponding column foot steel plate (4).

5. The elevator derrick foundation pit end column connection structure according to claim 1, characterized in that: The column foot anchor bolt (5) passes through the corresponding column foot steel plate (4) and is anchored in the end column structure (1), thereby fixing the corresponding derrick steel column (3) to the end column structure (1).

6. The elevator derrick foundation pit end column connection structure according to claim 5, characterized in that: A reserved shear groove (9) is provided in the middle of the upper surface of the end column structure (1), and a shear key (10) matching the reserved shear groove (9) is provided at the bottom of the column base steel plate (4).

7. The elevator derrick foundation pit end column connection structure according to claim 5, characterized in that: A concrete layer (11) is cast at the connection between the column base steel plate (4) and the upper surface of the end column structure (1).

8. The elevator derrick foundation pit end column connection structure according to claim 1, characterized in that: The column base anchor bolts (5) are evenly arranged along the edge of the column base steel plate (4).

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