A machine room less elevator load bearing beam reinforcing structure

Abstract

The utility model relates to a kind of inorganic room elevator load-bearing beam reinforcing structure, its structure includes motor load-bearing steel beam, chemical planting nail screw rod, reinforcing steel plate and concrete beam, reinforcing steel plate is set in the both sides of concrete beam, and the same concrete beam both sides reinforcing steel plate is pulled and connected by chemical planting nail screw rod and is passed through, motor load-bearing steel beam full-welding welding connection is between the two reinforcing steel plates of two concrete beams adjacent, when concrete beam does not satisfy height requirement, still include web, web is connected in the reinforcing plate bottom by fillet weld full-welding, reinforcing steel plate is set in concrete beam and the both sides of web whole, the both sides reinforcing steel plate corresponding of concrete beam is pulled and connected by chemical planting nail screw rod and is passed through, web and reinforcing steel plate are connected by fillet weld full-welding between reinforcing steel plate.The utility model has the advantages of: simple construction, short period of time;Low cost;Can reduce the fracture of reinforcing bar;Can improve bearing capacity;Site clean, less process.

Description

Technical Field

[0001] This utility model relates to a reinforcement structure for a machine room-less elevator load-bearing beam, specifically a structure for the post-installation of a machine room-less elevator load-bearing beam and the reinforcement of the original concrete beam structure, belonging to the technical field of design and construction of machine room-less elevator load-bearing beams within concrete structures. Background Technology

[0002] A sightseeing elevator is a vertical lift powered by an electric motor, equipped with a box-shaped cabin, primarily used in multi-story buildings for transporting passengers or goods. Because elevators are typically installed and redesigned by the construction company, there are often instances where the original structural beam height does not meet the requirements for the motor's load-bearing steel beams due to insufficient consideration of elevator installation needs during the building design phase. Specifically, in the case of sightseeing elevators, this usually occurs because the height of the load-bearing concrete beams on both sides is insufficient, preventing the traction (drive) motor's load-bearing beams from being properly supported.

[0003] Current construction methods typically involve increasing the cross-sectional size of concrete beams by installing reinforcing bars, or constructing a new steel structure to support the load-bearing beam. These methods are not economical because civil engineering work usually ceases during elevator installation, making formwork and concrete pouring no longer feasible. Specifically, current construction methods have the following disadvantages:

[0004] The construction is complex and difficult: when the main structure is completed and the sightseeing elevator is installed, the civil engineering team has already left the site, and there are no conditions for formwork and re-pouring. The construction measures cost is much higher than the installation cost. The construction period is long: due to the need to roughen the beam surface, install rebar, tie rebar, set up formwork, pour concrete, and harden and cure concrete on site, the cycle is very long. The cost is high: during construction, the cost is greatly increased because the cross-section must be increased by installing rebar to achieve reinforcement and modification. In addition, the labor cost is also high because on-site construction requires workers to tie rebar and carry out construction work. Utility Model Content

[0005] This utility model proposes a machine room-less elevator load-bearing beam reinforcement structure, which aims to overcome the above-mentioned shortcomings of the existing technology, simplify the process, shorten the construction period, and reduce costs.

[0006] The technical solution of this utility model is a reinforcement structure for the load-bearing beam of a machine-room-less elevator. It involves raising and reinforcing the load-bearing beams on both sides, fixing steel plate embedded parts by rebar installation, and welding the load-bearing beams to the fixed steel plates to achieve the installation of the traction machine load-bearing beams. The process is simple, convenient, safe, has a short construction period, and low cost.

[0007] Specifically, its structure includes a motor load-bearing steel beam, chemical anchoring through-bolts, reinforcing steel plates, and concrete beams. Reinforcing steel plates are installed on both sides of the concrete beams. The reinforcing steel plates on both sides of the same concrete beam are connected by chemical anchoring through-bolts. The motor load-bearing steel beam is fully welded between the two adjacent reinforcing steel plates of the two concrete beams.

[0008] Preferably, the bottom of the concrete beam is connected to a reinforcing plate by expansion bolts, and a pad is attached to the outside of the reinforcing steel plate at both ends of the chemical anchoring through-bolt, and double nuts are tightened at both ends of the chemical anchoring through-bolt.

[0009] Preferably, when the concrete beam does not meet the height requirements, it also includes a web plate. The web plate is fully welded to the bottom of the reinforcing plate by fillet welds. The reinforcing steel plates are set on both sides of the concrete beam and the web plate as a whole. The reinforcing steel plates on the corresponding sides of the concrete beam are connected by chemical anchoring through bolts. The web plate and the reinforcing steel plates are fully welded together by fillet welds.

[0010] The advantages of this utility model are: 1) Simple construction and short construction period: Two reinforcing steel plates are connected by chemical anchoring and threaded rods, eliminating the need for large-scale anchoring. The welding method can significantly reduce construction difficulty, increase construction speed, and shorten the construction period.

[0011] 2) Low cost: Compared with the existing technology of steel plate welding and chemical anchoring for reinforcement and renovation, it can reduce labor consumption and lower labor costs;

[0012] 3) Reduces the occurrence of steel bar breakage: Two reinforcing steel plates are connected by chemical anchoring and threaded rods, eliminating the need for large-scale rebar installation and significantly reducing the occurrence of steel bar breakage.

[0013] 4) Improved load-bearing capacity: By designing the end nodes, the steel structure beam can be designed as a continuous beam, which can improve the load-bearing capacity of the elevator load-bearing beam;

[0014] 5) Clean site and fewer procedures: Steel components are used, eliminating the need for wet concrete pouring, resulting in a clean site. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the reinforcement structure for the load-bearing beam of the machine room-less elevator of this utility model.

[0016] Figure 2 yes Figure 1 A sectional view along line AA.

[0017] Figure 3 yes Figure 1 M-1 direction schematic diagram.

[0018] Figure 4 This is a schematic diagram of the steel arrangement when the height of the concrete beam does not meet the requirements.

[0019] Figure 5 This is a schematic diagram of the steel arrangement when the concrete beam height meets the requirements.

[0020] In the diagram, 1 is the (traction / drive) motor load-bearing steel beam, 2 is the chemical anchoring through bolt, 3 is the reinforcing plate, 4 is the web plate, 5 is the fillet weld, 6 is the expansion bolt, 7 is the double nut, 8 is the pad, 9 is the reinforcing steel plate, and 10 is the concrete beam. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to embodiments and specific implementation methods.

[0022] like Figure 1-5 As shown, a machine room-less elevator load-bearing beam reinforcement structure includes a motor load-bearing steel beam 1, chemical anchoring through-bolts 2, reinforcement steel plates 9, and a concrete beam 10. Reinforcement steel plates 9 are installed on both sides of the concrete beam 10. The reinforcement steel plates 9 on both sides of the same concrete beam 10 are connected by chemical anchoring through-bolts 2. The motor load-bearing steel beam 1 is fully welded to the two adjacent reinforcement steel plates 9 of the two concrete beams 10.

[0023] As a further embodiment, the bottom of the concrete beam 10 is connected to a reinforcing plate 3 by expansion bolts 6, and a pad 8 is attached to the outside of the reinforcing steel plate 9 at both ends of the chemical anchoring through bolt 2, and double nuts 7 are tightened at both ends of the chemical anchoring through bolt 2.

[0024] When the concrete beam 10 does not meet the height requirements, it also includes a web plate 4. The web plate 4 is fully welded to the bottom of the reinforcing plate 3 by fillet weld 5. The reinforcing steel plate 9 is set on both sides of the concrete beam 10 and the web plate 4. The reinforcing steel plates 9 on the corresponding sides of the concrete beam 10 are connected by chemical anchoring through bolts 2. The web plate 4 and the reinforcing steel plate 9 are fully welded together by fillet weld 5.

[0025] Based on the above structure, precast steel is used to replace reinforced concrete beams, forming a machine room-less elevator load-bearing beam reinforcement structure. Specific dimensions are determined during construction based on the elevator load and seismic resistance level of different projects through load-bearing capacity analysis. Two reinforcing steel plates 9 are connected by chemical anchoring and through-bolts 2. This solution has a high safety factor, eliminates the need for extensive rebar installation, and significantly reduces damage to the original structure; it also provides a solution for concrete beams with insufficient height. The overall solution is convenient for on-site construction, has a short cycle, and requires less labor, greatly reducing labor costs.

[0026] All of the components described above are existing technologies, and those skilled in the art can use any model and existing design that can achieve their corresponding functions.

[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present utility model, and these all fall within the protection scope of the present utility model.

Claims

1. A reinforcement structure for the load-bearing beam of a machine-room-less elevator, characterized in that, The structure includes a motor load-bearing steel beam (1), chemical anchoring through-bolts (2), reinforcing steel plates (9), and a concrete beam (10). Reinforcing steel plates (9) are installed on both sides of the concrete beam (10). The reinforcing steel plates (9) on both sides of the same concrete beam (10) are connected by chemical anchoring through-bolts (2). The motor load-bearing steel beam (1) is fully welded between the two adjacent reinforcing steel plates (9) of the two concrete beams (10).

2. The reinforcement structure for the load-bearing beam of a machine-room-less elevator as described in claim 1, characterized in that, The bottom of the concrete beam (10) is connected to a reinforcing plate (3) by expansion bolts (6).

3. The reinforcement structure for the load-bearing beam of a machine-room-less elevator as described in claim 2, characterized in that, It also includes a web plate (4), which is fully welded to the bottom of the reinforcing plate (3) by fillet weld (5). The reinforcing steel plate (9) is set on both sides of the concrete beam (10) and the web plate (4). The reinforcing steel plates (9) on the corresponding sides of the concrete beam (10) are connected by chemical anchoring through bolts (2). The web plate (4) and the reinforcing steel plate (9) are fully welded together by fillet weld (5).

4. A reinforcement structure for the load-bearing beam of a machine-room-less elevator as described in any one of claims 1-3, characterized in that, The reinforcing steel plates (9) at both ends of the chemical anchoring through-bolt (2) are fitted with pads (8) on the outside, and the two ends of the chemical anchoring through-bolt (2) are tightened with double nuts (7).

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