Shaftway connecting structure of additionally-built elevator of existing building

Abstract

The utility model discloses a hoistway connecting structure of an additionally-built elevator of an existing building. The hoistway connecting structure comprises a first connecting support and a second connecting support. One end of the first connecting bracket is fixedly connected with an elevator shaft; one end of the second connecting bracket is fixedly connected with the anchor plate; the anchor plate is fixedly connected with a building; and the first connecting bracket is connected with the second connecting bracket through a bolt. The utility model has the advantages that the structure is simple, the processing cost is low, and the transverse load bearing capacity is good.

Description

Technical Field

[0001] The utility model relates to the technical field of building structures, in particular to a shaft connection structure for adding an elevator to an existing building. Background Art

[0002] When installing elevators in existing residential buildings, fixed hinge supports are often used between the elevator structure and the original structure to reduce the adverse effects of elevator structure installation on the original building structure. However, hinge supports can only balance the shear force in one direction. If the horizontal and vertical shear forces need to be balanced, a damping connection must be used, but the existing two-way damping supports are expensive. After market research, the existing connection solutions for installing elevators are generally only applicable to buildings with fewer than 7 floors, and their connection methods are mostly hinged connections. For buildings with more than 7 floors, such as 11-story and 18-story small high-rise buildings, the impact of wind loads gradually increases. On higher floors, the structure is subjected to horizontal shear forces caused by larger wind loads, and the commonly used connection structures have average ability to resist horizontal shear forces (mostly wind loads). Therefore, it is promising to develop a new type of elevator shaft connection structure with a simple structure, good bearing capacity under wind loads, and small deformation. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a shaft connection structure for adding an elevator to an existing building, which has a simple structure, low processing cost and good lateral load bearing capacity.

[0004] In order to solve the above technical problems, the technical solution of the utility model is a shaft connection structure for adding an elevator to an existing building, including a first connecting bracket and a second connecting bracket; one end of the first connecting bracket is fixedly connected to the elevator shaft; one end of the second connecting bracket is fixedly connected to an anchor plate, and the anchor plate is fixedly connected to the building; the first connecting bracket and the second connecting bracket are fixedly connected.

[0005] Furthermore, the first connecting bracket includes a first stiffening plate and a first bottom plate fixedly connected; the second connecting bracket includes a second stiffening plate and a second bottom plate fixedly connected; the first stiffening plate and the second stiffening plate are both trapezoidal in shape, and their center lines are aligned in the vertical direction; the first bottom plate is fixedly connected to the second bottom plate; after the connection, the first stiffening plate and the hypotenuse of the second stiffening plate are parallel; and the wide side end of the first stiffening plate and one end of the first bottom plate are fixedly connected to the elevator shaft, and the wide side end of the second stiffening plate and one end of the second bottom plate are fixedly connected to the anchor plate.

[0006] Furthermore, one end of the first connecting bracket and the elevator shaft, and one end of the second connecting bracket and the anchor plate are both welded.

[0007] Furthermore, the thickness of the first stiffening plate is equal to that of the second stiffening plate, and after being connected, the distance between the oblique sides of the two is greater than or equal to the length of one end of the first stiffening plate connected to the elevator shaft.

[0008] Furthermore, the first base plate and the second base plate are connected by four high-strength bolts.

[0009] Furthermore, the width of the second bottom plate is greater than that of the first bottom plate, and a groove is provided on the surface of the second bottom plate; the side wall of the first bottom plate is slidably matched with the groove wall of the groove.

[0010] Furthermore, a "U"-shaped positioning frame is installed in the groove of the second bottom plate; the outer wall of the positioning frame contacts the groove wall of the groove; and the side wall of the first bottom plate is slidably matched with the inner wall of the positioning frame.

[0011] Furthermore, the outer walls on both sides of the positioning frame are also fixedly connected with hanging ears.

[0012] Furthermore, the anchor plate is fixedly installed on the building through a plurality of anchor rods.

[0013] Beneficial effects of the utility model:

[0014] The utility model has a simple structure, low processing cost and good lateral load bearing capacity and can be suitable for installing elevators in high-rise buildings with more than seven floors. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of Example 1;

[0016] Figure 2 for Figure 1 A magnified view of the local structure;

[0017] Figure 3 is a schematic diagram of the three-dimensional structure of the first connecting bracket in Example 1;

[0018] Figure 4 This is a schematic diagram of the three-dimensional structure after the second connecting bracket is connected to the anchor plate in Example 1;

[0019] Figure 5 It is a cross-sectional view of the overall structure of Example 2;

[0020] Figure 6 is a schematic diagram of the three-dimensional structure of the second connecting bracket in Example 2;

[0021] Figure 7 This is a schematic diagram of the three-dimensional structure after the second connecting bracket in Example 2 is installed with the positioning bracket.

[0022] In the figure, 1-first stiffening plate, 2-first bottom plate, 3-second stiffening plate, 4-second bottom plate, 401-groove, 5-anchor plate, 6-elevator shaft, 7-building, 8-anchor rod, 9-positioning frame, 10-hanging ear. DETAILED DESCRIPTION

[0023] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other. Example

[0024] A shaft connection structure for adding an elevator to an existing building, such as Figure 1-4 As shown, it includes a first connecting bracket and a second connecting bracket; one end of the first connecting bracket is fixedly connected to the elevator shaft 6; one end of the second connecting bracket is fixedly connected to the anchor plate 5, and the anchor plate 5 is fixedly connected to the building 7; the first connecting bracket is fixedly connected to the second connecting bracket.

[0025] Specifically, the first connecting bracket includes a first stiffening plate 1 and a first bottom plate 2 that are fixedly connected; the second connecting bracket includes a second stiffening plate 3 and a second bottom plate 4 that are fixedly connected; the first stiffening plate 1 and the second stiffening plate 3 are both trapezoidal in shape, and their center lines are aligned in the vertical direction; the first bottom plate 2 is fixedly connected to the second bottom plate 4; after the connection, the hypotenuse of the first stiffening plate 1 and the second stiffening plate 3 are parallel; and the wide side end of the first stiffening plate 1 and one end of the first bottom plate 2 are both fixedly connected to the elevator shaft 6, and the wide side end of the second stiffening plate 3 and one end of the second bottom plate 4 are both fixedly connected to the anchor plate 5. Ensuring that the center lines of the first stiffening plate 1 and the second stiffening plate 3 are aligned is to avoid additional bending moment due to misalignment of the center lines.

[0026] Specifically, one end of the first connecting bracket and the elevator shaft 6, and one end of the second connecting bracket and the anchor plate 5 are both connected by welding.

[0027] Specifically, the first stiffening plate 1 and the second stiffening plate 3 have the same thickness, and the distance between the two hypotenuses after being connected is greater than or equal to the length of the end of the first stiffening plate 1 connected to the elevator shaft 6. Figure 2 , i.e. a≧b. The thickness of the stiffening plate is calculated by referring to the column foot boot beam in the Steel Structure Calculation Manual, and is calculated using the design value of the load perpendicular to the anchor plate 5, and meets the web width-to-thickness ratio requirement of S1.

[0028] Specifically, the first bottom plate 2 is connected to the second bottom plate 4 by four high-strength bolts. In order to ensure that the center lines of the first stiffening plate 1 and the second stiffening plate 3 are aligned, the aperture error of the mounting holes opened on the first bottom plate 2 and the second bottom plate 4 is controlled to be less than 2 mm.

[0029] Specifically, the anchor plate 5 is fixedly installed on the building 7 through a plurality of anchor rods 8 .

[0030] Ensure that the width-to-thickness ratio of each plate section meets the requirements of S1 so that the structure has a certain deformation capacity. Example

[0031] A shaft connection structure for adding an elevator to an existing building, such as Figure 5-7 As shown, except that a groove 401 is provided on the second bottom plate 4 and a positioning frame 9 is added, the rest of the structure is the same as that of the first embodiment.

[0032] Specifically, the width of the second bottom plate 4 is greater than the width of the first bottom plate 2, and a groove 401 is provided on the surface of the second bottom plate 4; the side wall of the first bottom plate 2 is slidably matched with the groove wall of the groove 401. It is necessary to ensure that the effective thickness of the second bottom plate 4 after the groove 401 is provided meets the design requirements. The groove 401 plays a positioning role, which is convenient for ensuring that the center lines of the first stiffening plate 1 and the second stiffening plate 3 are aligned during installation. A "U"-shaped positioning frame 9 is installed in the groove 401 of the second bottom plate 4; the outer wall of the positioning frame 9 is in contact with the groove wall of the groove 401; the side wall of the first bottom plate 2 is slidably matched with the inner wall of the positioning frame 9. In order to facilitate the disassembly and assembly of the positioning frame 9, the outer walls on both sides of the positioning frame 9 are also fixed with hanging ears 10.

[0033] Working principle of this utility model:

[0034] The connection surfaces of the first connecting bracket, the second connecting bracket, the anchor plate and the elevator shaft 6 form a combined structure parallel to the building plane with a force mode close to that of an I-beam. When the elevator shaft 6 is subjected to a lateral load (generally a horizontal force caused by wind load), the horizontal force first acts on the elevator shaft 6. Since the center lines of the first stiffening plate 1 and the second stiffening plate 3 are aligned, the force can be transmitted to the anchor plate 5 connected to the building 7. When a longitudinal load is generated, generally due to the influence of an earthquake, the elevator shaft 6 is subjected to a longitudinal load, which can drive the first connecting bracket to rotate a certain angle relative to the second connecting bracket, and has good seismic resistance.

[0035] Compared with equal-width plates, the advantage of the design of the first connecting bracket and the second connecting bracket is that the deformation of the cantilever ends of the first stiffening plate 1 and the second stiffening plate 3 can be reduced. On the other hand, if equal-width plates are used for rigid connection, although the horizontal load can be transmitted, the completely rigid connection has a greater impact on the original building and the seismic performance is poor. In the present application, the first connecting bracket and the second connecting bracket are connected by high-strength bolts, and there can be a certain amount of relative rotation between the two, and the seismic performance is good. The utility model has a simple structure, low processing cost, can withstand lateral loads and longitudinal loads, and has a good seismic effect.

[0036] During installation, first place the positioning frame 9, and then connect the first connecting bracket and the second connecting bracket into one piece by a plurality of bolts. The positioning frame 9 plays a positioning role, which can ensure that the center lines of the first stiffening plate 1 and the second stiffening plate 3 are aligned. After the bolts are installed, lift the positioning frame 9 upward, remove the positioning frame 9, and leave a certain relative rotation space between the first connecting bracket and the second connecting bracket.

[0037] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A shaft connection structure for adding an elevator to an existing building, characterized in that: It comprises a first connecting bracket and a second connecting bracket; one end of the first connecting bracket is fixedly connected to the elevator shaft (6); one end of the second connecting bracket is fixedly connected to the anchor plate (5), and the anchor plate (5) is fixedly connected to the building (7); the first connecting bracket and the second connecting bracket are connected by bolts.

2. The hoistway connection structure for adding an elevator to an existing building according to claim 1, characterized in that: The first connecting bracket comprises a first stiffening plate (1) and a first bottom plate (2) which are fixedly connected; the second connecting bracket comprises a second stiffening plate (3) and a second bottom plate (4) which are fixedly connected; the first stiffening plate (1) and the second stiffening plate (3) are both trapezoidal in shape, and their center lines are aligned in the vertical direction; the first bottom plate (2) and the second bottom plate (4) are fixedly connected; after the connection, the oblique sides of the first stiffening plate (1) and the second stiffening plate (3) are parallel; and the wide side end of the first stiffening plate (1) and one end of the first bottom plate (2) are both fixedly connected to the elevator shaft (6), and the wide side end of the second stiffening plate (3) and one end of the second bottom plate (4) are both fixedly connected to the anchor plate (5).

3. The hoistway connection structure for adding an elevator to an existing building according to claim 1, characterized in that: One end of the first connecting bracket and the elevator shaft (6), as well as one end of the second connecting bracket and the anchor plate (5) are both connected by welding.

4. The hoistway connection structure for adding an elevator to an existing building according to claim 2, characterized in that: The first stiffening plate (1) and the second stiffening plate (3) have the same thickness, and after being connected, the distance between the oblique sides of the two is greater than or equal to the length of one end of the first stiffening plate (1) connected to the elevator shaft (6).

5. The hoistway connection structure for adding an elevator to an existing building according to claim 4, characterized in that: The first bottom plate (2) and the second bottom plate (4) are connected via four high-strength bolts.

6. The hoistway connection structure for adding an elevator to an existing building according to claim 5, characterized in that: The width of the second bottom plate (4) is greater than the width of the first bottom plate (2); a groove (401) is provided on the surface of the second bottom plate (4); the side wall of the first bottom plate (2) is slidably engaged with the groove wall of the groove (401); a positioning frame (9) in a "U" shape is installed in the groove (401) of the second bottom plate (4); the outer wall of the positioning frame (9) is in contact with the groove wall of the groove (401); and the side wall of the first bottom plate (2) is slidably engaged with the inner wall of the positioning frame (9).

7. The hoistway connection structure for adding an elevator to an existing building according to claim 6, characterized in that: The outer walls on both sides of the positioning frame (9) are also fixedly connected with hanging ears (10).

8. The hoistway connection structure for adding an elevator to an existing building according to claim 1, characterized in that: The anchor plate (5) is fixedly mounted on the building (7) via a plurality of anchor rods (8).

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