Elevator installation and construction sequence

Elevator installation and construction sequence

The construction sequence of elevator installation is often used in elevator service life. Elevator plays a great role in today's society. Elevator has been widely used now. How to install the elevator? What are the construction sequences of elevator installation? Let's take a look.

Elevator installation construction sequence 1 elevator installation process is as follows:

1 First of all, pay-off, messenger wire, installation of elevator guide rail and car, and installation of counterweight and buffer.

2. Installation of traction machine and guide wheel, traction wire rope, landing door and door pulley.

3. Install safety tongs and speed limiter, and install automatic door machine.

4. Conduct safety debugging after the electrical part is installed.

Extended data:

Elevator emergency guide:

Article 1: This guide is formulated to ensure that elevator passengers can get timely assistance when they take the elevator in an emergency, to help people cope with elevator emergencies, to avoid casualties caused by panic and irrational operation, and to maximize the personal safety and equipment safety of passengers.

Article 2 The elevator use management unit shall strengthen the safety management of elevator operation in accordance with the Regulations on Safety Supervision of Special Equipment and other relevant provisions.

Article 3: The term "elevator" as mentioned in this Guide refers to mechanical and electrical equipment that is driven by power and transports people and goods along rigid guide rails or fixed lines, including manned elevators, escalators and moving sidewalks.

Elevator installation and construction sequence 2 (1) elevator installation and construction procedures

1. The civil works of the elevator shaft shall be tested to determine whether its location and size meet the civil layout and other requirements provided by the elevator manufacturer.

2. Set protective railings at the reserved holes of the landing doors, and set temporary cover plates at the reserved holes leading to the hoistway in the machine room.

3. After the reference line is put into the shaft, install the guide rail.

4. Equipment installation in computer room. Distribution and routing of pipes in shaft.

5. After the car is assembled, install landing doors and other related accessories.

6. After the power-on no-load test run is qualified, carry out load test run to test whether the actions of various safety devices are normal and accurate.

7. Organize all the records and prepare to apply by comparison.

(2) Key points of elevator construction safety technical measures

1. At the entrance of the landing station (reserved hole), a solid railing should be set near the outside of the shaft wall, and the height of the railing should not be less than 1.2mm, and warning signs or warnings should be set to prevent people from falling from the entrance of the landing station and throwing debris into the shaft.

2. Seal the reserved hole of the computer room with a temporary cover plate, and set a warning sign on the inner wall of the computer room, indicating that the cover plate cannot be moved casually to prevent sundries from falling on the top floor.

3. When scaffolding is installed in the elevator shaft for construction, it must be erected and qualified before use. If scaffolding and scaffolding are made of combustible materials, appropriate fire prevention measures should be considered.

4. The underground workers should be familiar with the provisions of the aerial work, and seriously implement in the operation.

(3) elevator use procedures

1. After the self-inspection and trial operation of the elevator installation unit, the records shall be sorted out and provided to the manufacturing unit, which shall be responsible for verification and debugging.

According to the Regulations on Safety Supervision of Special Equipment, elevator manufacturers are responsible for the quality problems involved in elevator quality and safe operation. After the elevator is installed, the elevator manufacturing unit shall inspect and debug the elevator according to the requirements of safety technical specifications, and be responsible for the results of inspection and debugging.

2. After the calibration and debugging meet the requirements, it shall be submitted to the inspection agency recognized by the safety supervision and management department of special equipment in the State Council for inspection, which needs supervision and inspection. According to Century Star, inspection and testing institutions conduct supervision and inspection in accordance with the requirements of safety technical specifications, and elevators that fail to pass the supervision and inspection shall not be delivered for use.

3. The elevator can only be delivered after it has passed the supervision and inspection. After obtaining the application permit, the completion acceptance formalities shall be handled in accordance with the regulations.

Elevator installation and construction sequence 3 I. Overall construction sequence

While preparing for construction, clear the obstacles in the construction site and the passage; The demolition work is carried out from top to bottom, and the coupling beam project of the new structure is constructed in the order of top to bottom, first secondary masonry, then bottom layer and then decoration. This project is mainly divided into four construction stages: demolition construction stage, new beam construction stage, secondary structure construction stage and decoration construction stage; Elevator installation works are carried out in coordination with the above construction stages.

The specific arrangement of the construction is as follows: roughly locate the cutting position and pay-off hole → set up the edge protection (including finished product protection) and the support system for floor demolition → cut the pay-off hole → accurately locate the pay-off hole (determine the hole position line according to the actual position of the lower structural beam and wall on site) → cut and remove the original structural floor and cut the hair → set up scaffolding in the elevator shaft → plant reinforcement for beam slab and structural column → bind formwork for beam slab and ring beam → concrete pouring for beam slab and ring beam → construct.

Second, the main steps and arrangements of construction

1. Handling of building materials: Considering the comprehensive factors such as stair decoration in the building, narrow indoor elevator space, and great difficulty in protecting finished products, long materials (more than 2.5M in length) are transported from the outdoor corridor on the first floor to each working floor by manual transportation after site survey. Small materials (such as fasteners, building block materials, mortar, concrete, sand, stone, etc. ) can be manually transported to the indoor elevator through the first floor passage (the interior of the elevator and the wall surface and the renovated floor are paved with 18 thick plywood to protect the finished product), then manually transported to the adjacent floor, and then transported to the outdoor operation floor. When transporting materials that are easy to leak or pollute, each transportation channel should also be covered with a layer of color under the pad before transportation.

2. Edge protection: When the original structure is demolished, a protective railing shall be set on the periphery of the newly-added elevator, a protective safety net shall be hung on the outside (the protection height shall not be less than 2.5M), and a 18 thick plywood baffle (the height shall not be less than 1.2M) shall be set on the inside to prevent materials from splashing and colliding with the stone railing. After the original structure is dismantled, the elevator shaft should be provided with an operating platform and safety protection as required.

3. Demolition of original components: construction will be started immediately after Party A delivers it to us, and the concrete structural slab from the first floor (elevator foundation pit) to the fifteenth floor that has been constructed will be demolished. According to the design requirements, because the original design structure is concrete,

The international strength is above C40. Considering the difficulty of demolition construction, design requirements and the advantages of diamond water drilling machine cutting, two imported static diamond bits are used to cut the original structural concrete slab. This part of the construction needs to be organized by a professional construction team.

4. Reinforcement planting for beam slab and constructional column: After the original components are cut, dismantled and chiseled, all steel bars for beam slab, constructional column and back wall of the new structure need to be reinforced and connected with the main beam, slab and wall. This part of the construction needs to organize professional construction teams to carry out operations.

5. Formwork assembly: According to the actual situation of the construction site and comprehensive consideration of the engineering situation, the beam and slab of the elevator foreroom and the structural column of the shaft are supported by steel pipes and assembled by ordinary bamboo formwork.

6. Concrete pouring: The concrete quantity of newly-added beams (including ring beams) and structural columns on each floor is about 1.5M3, which will be transported to the floor by indoor elevators and trolleys, and then transported to the pouring operation surface manually.

7. Secondary structural masonry: When the newly-added beam reaches the design strength and the ring beam, structural column and wall reinforcement are completed, the masonry construction can be started. During construction, pre-set Maya bifurcation and wall reinforcement according to construction specifications.