Formwork erecting structure for positive operation of suspension elevator shaft of shock insulation system
By using a seismic isolation system to suspend the elevator shaft to make a support structure, using I-steel and extruded plate support frames, combined with seismic isolation layer and conversion beams, the problem of insufficient seismic resistance of the elevator shaft is solved, and efficient and safe construction results are achieved.
Patent Information
- Application Number
- CN202422021936.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-08-20
AI Technical Summary
In the prior art, the seismic resistance performance of elevator shafts is insufficient, resulting in earthquakes or other vibrations posing a threat to the safety of elevator shafts and passengers, and the reverse approach is long and the cost is high.
The seismic isolation system is used to suspend the elevator shaft as a support structure, including the seismic isolation structure outside the elevator foundation pit, the support structure in the elevator shaft and the support structure at the bottom. I-shaped steel and extruded polystyrene plates are used to form a support frame, combined with the seismic isolation layer and the building superstructure, and the seismic resistance of the shaft structure is achieved through the connection of the conversion beam and the steel pipe top support.
It improves the seismic resistance of the elevator shaft, shortens the construction cycle, reduces the construction cost, and has simple materials, simple stress form, high load-bearing capacity, and good safety and stability.
Smart Images
Figure CN223202716U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of elevator shaft construction, in particular to a positive formwork structure for a seismic isolation system suspended elevator shaft. Background Art
[0002] As residents' living standards improve, people's demand for elevators in buildings and their attention to safety are also increasing. The seismic performance of the elevator shaft is an important part of elevator safety. The elevator shaft has good seismic performance to avoid the safety threats brought by earthquake waves or other vibrations to the elevator shaft and the people riding the elevator, and avoid damage to the shaft structure. The utility model is a seismic isolation system suspended elevator shaft positive method formwork structure, which adopts the positive method construction structure. While ensuring the stability and safety of the elevator shaft structure construction, it has a high seismic technical effect, effectively reduces the reverse method construction period, and reduces construction costs. Utility Model Content
[0003] The purpose of the utility model is to provide a seismic isolation system suspended elevator shaft formwork structure to solve the technical problems mentioned in the above background technology.
[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0005] A seismic isolation system suspended elevator shaft formwork structure, including an elevator foundation pit, a seismic isolation structure arranged outside the elevator foundation pit, an elevator shaft structure arranged in the elevator foundation pit, and a support structure arranged at the bottom of the elevator shaft structure, the elevator shaft structure including four vertically arranged elevator shaft side walls, and an elevator shaft floor plate horizontally arranged at the bottom of the four elevator shaft side walls, the bottom of the elevator foundation pit is a raft foundation, the support structure is arranged between the raft foundation and the elevator shaft floor plate, the support structure includes a horizontally arranged support frame, an extruded polystyrene board arranged in the support frame, and multi-layer plywood laid horizontally above the support frame and the extruded polystyrene board, the support frame is formed by four I-beams. A rectangular frame, four I-beams are respectively arranged at the bottom of the four elevator shaft side walls, extruded polystyrene boards are fully laid in the support frame, the seismic isolation structure includes a basic structure, a seismic isolation layer and a building superstructure arranged in sequence from bottom to top, an isolation layer bottom plate is provided on the top of the basic structure, the isolation layer includes a seismic isolation layer lower pier arranged above the seismic isolation layer bottom plate and a seismic isolation support provided above the seismic isolation layer lower pier, the building superstructure is provided above the seismic isolation support, the building superstructure includes a bottom support arranged above the seismic isolation support, and a seismic isolation layer top plate arranged above the bottom support; a conversion beam is provided between the elevator shaft structure and the seismic isolation structure, and the conversion beam is connected between the top of the elevator shaft side wall and the seismic isolation layer top plate.
[0006] Furthermore, a steel pipe top support is provided between the elevator shaft structure and the seismic isolation structure, and the steel pipe top support is horizontally supported between the foundation structure and the side wall of the elevator shaft.
[0007] Furthermore, the outer peripheral sides of the elevator shaft floor are flush with the outer sides of the four elevator shaft side walls, and the elevator shaft floor and the elevator shaft side walls have the same thickness.
[0008] Furthermore, the top surface of the extruded polystyrene board is flush with the top surface of the support frame, the four outer peripheries of the multi-layer plywood are respectively flush with the four outer peripheries of the elevator shaft floor, and the top surface of the multi-layer plywood is in contact with the bottom surface of the elevator shaft floor.
[0009] Furthermore, the distance between the elevator shaft floor and the raft foundation is 200 mm, the thickness of the extruded polystyrene board is 50 mm, and the thickness of the multi-layer plywood is 15 mm.
[0010] Furthermore, the steel pipe support is a telescopic rod
[0011] Compared with the prior art, the present invention has the following characteristics and beneficial effects:
[0012] The utility model makes the elevator shaft structure have higher earthquake resistance through the seismic isolation structure arranged on the outside of the elevator foundation pit, the elevator shaft structure arranged in the elevator foundation pit, and the supporting structure arranged at the bottom of the elevator shaft structure. By adopting I-beams and extruded boards as the elevator shaft bottom plate support formwork, compared with the traditional sand and gravel pad or reverse construction method, while ensuring the stability and safety of the shaft structure in the positive construction method, it is constructed synchronously with the main structure, and compared with the reverse construction method, the construction period is effectively reduced. In addition, the materials used are simple, and the supporting structure is formed by filling the interior of the I-beam with extruded boards. The force form is simple, the bearing capacity is high, the safety and stability are high, and it has the characteristics of safety and applicability. It has good promotion and practical value, and will produce good economic benefits after widespread promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0014] Figure numerals: 1. raft foundation; 2. support frame; 3. elevator shaft side wall; 4. extruded polystyrene board; 5. multi-layer plywood; 6. elevator shaft floor; 7. isolation layer bottom plate; 8. isolation layer lower pier; 9. isolation bearing; 10. bottom support; 11. isolation layer top plate; 12. transfer beam; 13. steel pipe top support. DETAILED DESCRIPTION
[0015] In order to make the technical means, innovative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below.
[0016] The embodiments described herein are specific embodiments of the present invention and are used to illustrate the concept of the present invention. They are illustrative and exemplary and should not be construed as limiting the embodiments and scope of the present invention. In addition to the embodiments described herein, those skilled in the art can also adopt other obvious technical solutions based on the claims and the disclosure of the specification, including technical solutions that adopt any obvious substitutions and modifications to the embodiments described herein.
[0017] The utility model discloses a seismic isolation system suspended elevator shaft positive method formwork structure, such as Figure 1 As shown, it includes an elevator foundation pit, a seismic isolation structure arranged outside the elevator foundation pit, an elevator shaft structure arranged in the elevator foundation pit, and a supporting structure arranged at the bottom of the elevator shaft structure. The plane structures of the elevator foundation pit and the elevator shaft structure are both rectangular. The elevator shaft structure includes four vertical elevator shaft side walls 3 and an elevator shaft bottom plate 6 horizontally arranged at the bottom of the four elevator shaft side walls 3. The outer peripheral sides of the elevator shaft bottom plate 6 are respectively flush with the outer sides of the four elevator shaft side walls 3. The elevator shaft bottom plate 6 has the same thickness as the elevator shaft side walls 3. The bottom of the elevator foundation pit is a raft foundation 1, which supports The structure is arranged between the raft foundation 1 and the elevator shaft bottom plate 6. The supporting structure includes a horizontally arranged support frame 2, an extruded polystyrene board 4 arranged in the support frame 2, and a multi-layer plywood 5 horizontally laid on the support frame 2 and the extruded polystyrene board 4. The support frame 2 is arranged on the raft foundation 1. The support frame 2 is a rectangular frame surrounded by four I-beams. The four I-beams are respectively arranged at the bottom of the four elevator shaft side walls 3. The extruded polystyrene board 4 is fully laid in the support frame 2. The top surface of the extruded polystyrene board 4 is flush with the top surface of the support frame 2. The four sides of the multi-layer plywood 5 are respectively flush with the four sides of the elevator shaft bottom plate 6. The outer periphery is flush, the top surface of the multi-layer plywood 5 is in contact with the bottom surface of the elevator shaft bottom plate 6, the distance between the elevator shaft bottom plate 6 and the raft foundation 1 is 200mm, forming a seismic isolation joint, the I-beam model is 20#, the thickness of the extruded polystyrene board 4 is 50mm, and the thickness of the multi-layer plywood 5 is 15mm; the seismic isolation structure includes a foundation structure, a seismic isolation layer and a building superstructure arranged in sequence from bottom to top, an isolation layer bottom plate 7 is provided on the top of the foundation structure, the isolation layer includes an isolation layer lower pier 8 provided above the isolation layer bottom plate 7 and an isolation support 9 provided above the isolation layer lower pier 8, and the building superstructure is provided on the top of the building. The structure is arranged above the seismic isolation support 9, and the upper structure of the building includes a bottom support 10 arranged above the seismic isolation support 9, and a seismic isolation layer top plate 11 arranged above the bottom support 10; a conversion beam 12 is provided between the elevator shaft structure and the seismic isolation structure, and the conversion beam 12 is connected between the top of the elevator shaft side wall 3 and the seismic isolation layer top plate 11, and a steel pipe top support 13 is provided between the elevator shaft structure and the seismic isolation structure. The steel pipe top support 13 is a telescopic rod, including an outer rod and an inner rod. The outer rod is sleeved on the inner rod and connected to the inner rod. The steel pipe top support 13 is horizontally supported between the foundation structure and the elevator shaft side wall 3.
[0018] During construction, after the raft foundation 1 is completed, a total station and a level are used to measure the projection line and elevation of the elevator shaft structure; I-beams are installed according to the measured projection line, and the I-beams are laid just below the elevator shaft side wall 3, ensuring that the axis is aligned. The I-beams are arranged along the entire length of the elevator shaft side wall 3 to form a rectangular closed frame, and are connected by welding; after the I-beams are installed, extruded polystyrene boards 4 are laid within their rectangular range, and the number of layers is selected depending on their thickness; after the extruded polystyrene boards 4 are installed, multiple layers of plywood 5 are uniformly laid on top of them to form the formwork structure of the elevator shaft floor 6, and after completion, the elevator shaft floor 6 reinforcement is constructed Concrete, and at the same time reserve the steel bars for the elevator shaft side wall 3; after the elevator shaft bottom plate 6 reaches the design strength, the elevator shaft side wall 3 is constructed layer by layer in sequence, and the seismic isolation structure is constructed synchronously with the elevation, wherein the lower pier 8 of the seismic isolation layer is constructed together with the seismic isolation layer bottom plate 7, and the seismic isolation bearing 9 is installed; when the elevator shaft side wall 3 is constructed to the seismic isolation layer top plate 11, the conversion beam 12 is constructed along with the seismic isolation layer top plate 11, and the three steel bars are anchored and connected to each other according to the design requirements, and the concrete is poured at the same time; after the seismic isolation layer top plate 11 and the conversion beam 12 reach the design strength, the I-beam, extruded polystyrene board 4 and multi-layer plywood 5 are removed to form a force system conversion.
[0019] The utility model makes the elevator shaft structure have higher seismic resistance through the seismic isolation structure arranged on the outside of the elevator foundation pit, the elevator shaft structure arranged in the elevator foundation pit, and the supporting structure arranged at the bottom of the elevator shaft structure. By adopting I-beams and extruded boards as the elevator shaft bottom plate support formwork, compared with the traditional sand and gravel pad or reverse construction method, while ensuring the stability and safety of the shaft structure in the positive construction method, it is constructed synchronously with the main structure, and compared with the reverse construction method, the construction period is effectively reduced. In addition, the materials used are simple, and the support structure is formed by filling the I-beam with extruded boards. The force form is simple, the load-bearing capacity is high, and the safety and stability are high.
[0020] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.
[0021] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.
Claims
1. A conventional formwork structure for a seismic isolation system suspended elevator shaft, characterized by: The invention comprises an elevator foundation pit, an isolation structure arranged outside the elevator foundation pit, an elevator shaft structure arranged inside the elevator foundation pit, and a support structure arranged at the bottom of the elevator shaft structure, wherein the elevator shaft structure comprises four vertically arranged elevator shaft side walls (3) and an elevator shaft bottom plate (6) arranged horizontally at the bottom of the four elevator shaft side walls (3), the bottom of the elevator foundation pit is a raft foundation (1), the support structure is arranged between the raft foundation (1) and the elevator shaft bottom plate (6), the support structure comprises a horizontally arranged support frame (2), an extruded polystyrene board (4) arranged inside the support frame (2), and multi-layer plywood (5) horizontally laid above the support frame (2) and the extruded polystyrene board (4), the support frame (2) is a rectangular frame surrounded by four I-beams, and the four I-beams are respectively arranged at the four sides of the elevator shaft At the bottom of the side wall (3), an extruded polystyrene board (4) is fully spread in the support frame (2); the seismic isolation structure includes a foundation structure, a seismic isolation layer and a building superstructure arranged in sequence from bottom to top; a seismic isolation layer bottom plate (7) is provided on the top of the foundation structure; the seismic isolation layer includes a seismic isolation layer lower pier (8) arranged above the seismic isolation layer bottom plate (7) and a seismic isolation support (9) arranged above the seismic isolation layer lower pier (8); the building superstructure is arranged above the seismic isolation support (9); the building superstructure includes a bottom support (10) arranged above the seismic isolation support (9) and a seismic isolation layer top plate (11) arranged above the bottom support (10); a conversion beam (12) is provided between the elevator shaft structure and the seismic isolation structure; the conversion beam (12) is connected between the top of the elevator shaft side wall (3) and the seismic isolation layer top plate (11).
2. The conventional formwork structure for a seismic isolation system suspended elevator shaft according to claim 1, characterized in that: A steel pipe top support (13) is provided between the elevator shaft structure and the seismic isolation structure. The steel pipe top support (13) is horizontally supported between the foundation structure and the elevator shaft side wall (3). The steel pipe top support (13) is a telescopic rod.
3. The conventional formwork structure for a seismic isolation system suspended elevator shaft according to claim 1, characterized in that: The outer peripheral sides of the elevator shaft bottom plate (6) are respectively flush with the outer side surfaces of the four elevator shaft side walls (3), and the elevator shaft bottom plate (6) and the elevator shaft side walls (3) have the same thickness.
4. The conventional formwork structure for a seismic isolation system suspended elevator shaft according to claim 1, characterized in that: The top surface of the extruded polystyrene board (4) is flush with the top surface of the support frame (2), the four outer peripheries of the multi-layer plywood (5) are respectively flush with the four outer peripheries of the elevator shaft floor (6), and the top surface of the multi-layer plywood (5) is in contact with the bottom surface of the elevator shaft floor (6).
5. The conventional formwork structure for a seismic isolation system suspended elevator shaft according to claim 1, characterized in that: The distance between the elevator shaft bottom plate (6) and the raft foundation (1) is 200 mm, the thickness of the extruded polystyrene board (4) is 50 mm, and the thickness of the multi-layer plywood (5) is 15 mm.