【 Weak current College 】 elevator and escalator wells road measuring

First, the elevator sales should have a capacity of several
(1) to be able to read and understand the company's elevator standard layout. That is, according to the layout to explain the elevator shaft road construction technology issues, special issues to the factory technical support personnel consulting.
(2) to identify and lift the architectural drawings. Sales staff should be able to provide the construction diagrams found and elevator shaft road related drawings and related parameters, including:
Elevator shaft road sections (including layers high, pit depth, room, Hall door Corbel, data);
Elevator shaft road map (including Wells road plane dimension, door width and orientation, wall thickness, etc.);
Elevator room floor plan (including room flat dimensions, Wells road and the relative position of the engine room, the door position, etc.).
There is also a building construction plans and the above content merge in a picture. Many building construction plans also identify what the press brand lift design and construction guidance by elevator manufacturers, etc.
For a large number of elevator project, to be able to according to the elevator shaft road details and general layout of the axis to determine the location of each lift and numbered.
Sales staff should also have some of the commonly used and elevator shaft road-related construction terminology and knowledge, which is conducive to lift sales and building design and construction of communication. For example: beams, columns, bases, lintel, Wale, Corbels, main bars and hoops, shear walls, concrete symbols, the meaning of these terms.
(3) to conduct on-site measurement well road and record.
Sales should know what the cargo contract signed between wells road data and measurement methods, also according to the results of the draw sketches in situ measurements. Draw a sketch called roughly proportional to the data tagging accurate writing clear, special structure to indicate, if necessary also should draw partial detail. Measurement size as long as accurate to the cm.
(4) an overview of the elevator installation process.
The basic steps for elevator installation: clean wells road, view the site with installation conditions, provide temporary storehouse, devanning inspection, a scaffold, make, model, on the baseline, installation guides, installation guides, installation in the engine room equipment, install the Office door unit, on the ground floor mounted on heavy, top mounted cabin, installed wells road machinery equipment, hanging rope, installation of electrical installations layout well road, cable and servo cables, complete machine debugging acceptance.
Understanding these benefit salespeople on elevator construction of understanding, especially when the master batches delivery order shipped. Second, in situ measurements of significance and role
With elevator shafts and special well road conditions of general analysis of the processing power of today's elevator industry recognized on sales of basic requirements. An onsite knowledgeable salespeople can project negotiations involved well road conditions, on the products available and civil reconstruction to make a quick preliminary programme, shorten the negotiation process, the easier it is to win the trust of customers and orders, and also improve the image of the enterprise.
Well road measuring aims to lift the company provide detailed, true well road parameters with elevator layout designer to draw a line with the actual situation at the scene of the layout. To remind customers that contract confirmation drawings after construction changes shall promptly notify the elevator manufacturers, alterations of contract drawings as soon as possible to do in order to prevent impact with the installation.
In the following circumstances require measurement: Wells road
1. users are unable to provide elevator shaft road construction drawings;
2. user-provided well road drawing insufficiency or drawings of the data is not full;
3. site construction size and user-provided or confirmation does not match the size of the drawing.
The role of the lift plan are:
1. for guidance, the architectural design for elevator shaft road construction design or modification;
2. for guidance elevator factory elevator structure design and production of feed;
3. used to guide the elevator equipment onsite on line installation.
Layout drawing principle is not altered or minimalist original wells road construction structure. Elevator factory layout is provided by the architectural design for elevator shaft road construction design basis, cannot be directly used for Wells road construction, construction unit should, in accordance with the architectural sector's building construction drawing (blueprint) for the construction, but also the lift plan for civil construction units. Third, the elevator shaft road measuring basic content
1. well road width: faced with the elevator Hall door, measuring well Road between two sidewall clearance dimensions.
Wells depth: from Hall Road at the gate of the wall to wall well road clearance between dimensions.
On wells road width and depth, each layer you want to measure, prevent wells road, upper and lower deviation is too great. With a long wooden pole exploration by the hall door hole well working road wall, wood pole to use ruler measurement probe into some length. Well road width measurement with steel measuring tape on it, if not much depth well road, also can directly go with steel measuring tape on the road. Note some wells road wall design for thin and thick, well on the road is narrow, wide phenomenon under.
2. door: measuring with gate width, height, and the call to pore size measurements where left and right side wall piles up to determine the width of the door of the Center is located in well road, as well as the deviation. Inspection door above the lintel of reinforced concrete, General requirements such as high and wall 300mm thick and well road width to install floor door unit. Each layer of door below must have reinforced concrete beam used to install Office door to Campo equipment, such as an ox's leg shall be recorded. Door left hole height generally: since the decoration completed ground, lift NET door height + 100mm
3. layer high: in the hall door measurements of two adjacent floor renovation completed the vertical distance between the ground. Available with a wood pole segments on a floor slab measurement under the skin to foot station ground NET dimensions, and coupled with the floor thickness of the layer. Also available on the Office door surface with high up and down the stairs of the mouth measurement storey.
4. top level height: top decoration completed ground to Wells road roof skin between dimension.
5. pit depth: the lowest layer of the decoration was completed at the end of the ground to the pit depth. Observe the pit with no architectural foundation, and other structures that projects well road, where it shall be of a size that record.
6. wall structure: brick wells road shall have no ring beam inspection, shall record the ring beam Center roomsMargin (General requirements ring beam height 300mm, minimum of 200mm), who has embedded parts required records embedded parts size and spacing, note that in many cases, if not by you on behalf of the manufacturers drawings design of wells road, embedded parts location has. After the weight of the elevator shaft road shall face cloth beam (or embedded parts), side of the elevator shaft road just around both sides of the cloth beam (or embedded parts). Also note the four corners well road have prominent wells road, well within the column has no inner road outstanding beam, structure, and record. Embedded parts location from the lift manufacturers under rail bracket and wells road wall welded fixed position to determine, embedded parts of general use 12-16mm thick steel plate. 7. room: capacity out of the room flat length and width dimensions, the engine room and the relative position of the well road, up the pieces (if any) height, hook the lower edge to Wells road roof height between the epithelium, the engine room door location and size, and so on, but there is no support for sets of records. Room for high-profile and height dimensions determine the factory shipment room box, emergency stop switch configuration. Also note the machine beam distance between the support desk (generally equal to Wells road width or depth), avoid factory shipment will send text machine beams.
4. elevator shaft road general civil engineering problems 1. Wells road is too large or too small:
When the elevator shaft road side wall from the hall door centerline measurements, and the depth is greater than the standard well road layout dimensions within, is 200mm can not install elevators in civil engineering, but to indicate actual size of drawings for manufacturers appropriate extended rail bracket. If wells road width or depth is too large, you should take with steel beams and other remedies, or to the factory designers could use support extended consultation reinforcement.
Elevator manufacturers provide standard construction plans were the smallest size, to save floor space, improve product adaptability. So if wells road, less than the standard size, should be consulted to the factory.
Special attention should be paid to the construction of tall buildings. Hall door side linings of vertical wells road surface deviation should ensure that 0 ~ + 25mm, other three wells road wall vertical surface deviation should ensure that 0 ~ + 50mm. 2. Wells road, four have column appears:
If wells road side one corner has a post about projection, not exceeding 200mmx200mm, usually does not affect elevator installation. But if in the hall door side shafts corner have prominent column, in the standard range of well road width is not allowed. Building the structure column sometimes down heavy on fine, so we should pay special attention to the back.
3. top level height (oh) is not enough:
This situation should be room well road to top-level local up elevation height meet standard size, which is the "up", and Kang Kang "up" well road roof epithelial to hook to the lower edge of the range must meet the traction machine installation space requirements, generally should be greater than 2200mm. If the height of the "House" is greater than or equal to 500mm, Elevator installation after the user had to do high-profile Rails and ladders (sometimes users will delegate to the lift manufacturers).
4. bottom hole too deep or too shallow:
If you have deep pit must be backfilled to standard depth or than standard depth within large 100mm depth. Pit excessively brief first recommends users to dig deep to standard depth, then consider the elevation height for the first layer of the ground, first floor Hall entrance ground up slope or a table, then consider reducing the elevator speed.
5. pit within a building Foundation and other prominent structure:
Shall truthfully measurements, calculation by elevator manufacturers and make the device or the construction and improvement programs, if damage to infrastructure, subject to the approval of building design sector.
6. the pit below as it was able to reach the space:
This situation should first suggested user closed wells road following space, otherwise, Wells road backplane load shall 5000n/m2 or more, and on the following areas shall be reaching down to the solid ground of solid Pier. Provisions of this international standard can also be installed on heavy security clamp resolved, but generally lift manufacturers will not easily accept, because the installation of safety clamp makes elevator machine structure is more complex, the price increase.
7. brick Hall door problems:
If only a little above the door of a beam that does not meet the installation requirements for the elevator Hall door, you need to do in the door above the two steel plate. Splint the position and size by manufacturers according to selected door model.
8. the brick mixes the structure of the elevator shaft:
Incomplete brick structure well road, may require the user to intervals of a certain altitude do a ring beam, three-sided layout, in the elevator door side of the fracture, beam Center height spacing in accordance with the manufacturer of the product model, the maximum should not exceed 2500mm, beam high 300mm, and wall thickness. The lowest line of the pit bottom ring beam distance 500-1500mm, maximum line ring beam distance wells road roof skin 200-500mm. Been completed framework Tim solid brick structure well road, fixed Rails support frame place steel plate, the position and size the splint elevator manufacturers to provide, the user is responsible for the provision of materials and construction. Well road structure if it is hollow and no ring beam, consider adding steel beams between the frames.
9. multiple elevator shaft DAO
Each contiguous two elevator shaft road every certain height fixed a 18-20 # girders, location with ring beam. Pit shall be quarantined, and higher than the underlying ground 2500mm.
10. on request of well road wall
Well road wall do not plaster, this will help to reduce noise, but cannot have a foreign body.
11. engine room power supply: power supply 380V, 50hz, lighting power supply 220V, 50hz should entry to the engine room door and fitted into the line in the vicinity of the socket. 5. several different field conditions of wells road measuring method
1) create a new project in the elevator shaft:
When the design has not been completed, the salesman just provide the user with the required lift standard lift layout design by user delegate for elevator shaft road design. When the design has been completed, the scene has not construction, under construction or have been completed, the manufacturer shall, under the present building construction drawing or measuring the dimensions of the plot, if changes to the original wells road construction design, architectural design by user delegate according to the elevator factoryHome layout provided by doing well road design modifications.
2) old stairs updated wells road:
For the old elevator has dismantled wells road construction of measurement methods and has just completed wells road. The old elevator has not been removed, try to get away from well road, such as room size, storey, door dimension, and so on. The old elevator is not removed when the following two situations:
A. when the old elevator can start:
This measure must be well road, Elevator mechanic plus! and it is important to note that the elevator mechanic safety! open doors for the first layer of Hall, startup repair operations to the car on the second floor of the above, staff at the first floor measurement measuring pit data, note to record pit size as well as the first layer of the wall structure, such as the Office door is centered, Corbels, Wells road wall if there is a special structure, ring beam spacing, embedded parts location, etc. And then measuring the Office personnel to the second floor, elevator door to open access to a car top speed slightly lower than on the second floor of the hall door to Kham when parking, Elevator mechanic from wells in open office door, measurement and observation wells road, second floor, and then press this method-by-layer measurements to the front.
B. when the old elevator cannot run when:
Because wells Road cannot enter, can only be from wells road outside limited data determine whether non-standard (room has high-profile can be measured in the engine room well road plane dimensions, but not enough accurate) for elevator quote reference, when negotiating such a contract should be declared well road improvement and expense of the user. For uncertain wells road structure and dimension to remind the user after the demolition of the old staircase, a new stair into production before available to the elevator manufacturers or notification to who of elevator manufacturers.
3) "nothing" in the elevator shaft:
Such situations are old buildings or building new users to change their mind after completion of the requirements in the building or wall additional lift. Salesperson first initial visits on-site availability of wells road and the engine room space, and then add the user to the required specification of a standard layout as elevator design conditions by the user provides to the Department of architectural design, architecture and design departments according to the layout of the scene of elevator pit depth, height, top, and so on whether met counterforce elevator installation requirements, and what are the structural needs breaking (smash down stairs or floor), making reconstruction programmes. If you do because civil conditions require a change to the elevator structure (such as car size, door width, etc.), Elevator manufacturers consider the escalators non-standard design problems.
6. escalator wells road measuring basic content
1. measure the lift height. And measurement of ladders of storey, strictly speaking, the lifting height is an escalator, down two bearing beam Office renovation completed the vertical distance between the ground and measurement with hanging lines should note drop ball positioning point and escalators under bearing beam decoration there fall between.
2. measurement of the upper and lower bearing beam beams between the margins. Measurement method: in the last line to ground support crane positioning, then direction from the anchor point to the next level of support beams edge.
3. upper and lower effective support support beam width should be greater than the width of the escalator truss and should have embedded steel plate.
4. measurement of the pit (if any) of length, width, depth, and observe whether there is a supporting beam Office Groove and embedded parts.
5. takes note of the escalator sides should have more space, 350mm parallel arrangement between two escalators are not affected by this limitation.
6. in order to implement the arrangement of the escalator and feedback manufacturers for manufacturers to identify some common device configuration, shipping order, continuous flow, handrail turning alignment, and other factors.
7. the need for intermediate and support of the escalator, to determine if the field is combined with the support of conditions, and you can add support for the specific position of the range, and the support desk height load size determined by manufacturers such as parameters. VII. escalator field treatment of General Civil Engineering
1. beam margins too large: this can increase the escalator up and down the length of the platform to meet civil actual size. Can be extended at one side of the platform, you can also lengthen, on both sides of the platform at the same time, the total amount of extended the platform in General should not be more than 1000mm. Platform extension when pit length or floor openings should also be extended simultaneously. Up and down stairs after extended support points of stress. If the beam is too long for the margin increase the escalator truss intermediate required plus support. In addition to the escalator perspective by 35 degrees to 30 degrees also enables beam margins.
2. beam margins too small: by shortening the platform approach shortens the total length of the ladder, but note the limited scope of reduced, generally not more than 200mm. The platform does not generally can be shortened, since the platform includes control cabinets and electrical machinery and other equipment. The escalator perspective from 30 degrees to 35 degrees can also shorten the beam margins.
3. in the ladder just above beams or other obstacles:
Beams or other obstacle is "meet" you can use the following formula to determine (in mm):
(Entrance length-50-on platform) ÷ 1.732 or 1.428-beam high ≥ 2300
Where: the cave length and beam height (including decoration thickness) field measurement or users;
50 as the ladder truss to the supporting beam edge cracks (some manufacturers value is 40);
Constant 1.428 to 35 degree angle escalator; 1.732 escalator for 30-degree angle;
On the platform length according to the manufacturers standard layout;
2300 to national standard specifies the minimum height.
Note: the shopping centre ladder tilt angle generally do not allow greater than 30 degrees.
4. building transportation corridor, door height or the rotation is not enough space in building:
In this case, if the construction cannot be changed, the escalator factory must break section transport (generally fall into 2 sections), when signing the sales contract should indicate. Truss factory is not divided into sections, escalator equipment does not allow side handling.
5. escalator power supply: 380V, 50hz to lead to the exit on the escalator.
6. the travellators measurement: basic method and escalator manufacturers standards, similar to the reference plan survey.
VIII. in situ measurements before you
1. by appointment: go to the site before and about the user or the construction unit of time, this can be a good fit the scene, the scene where the amount of lifting equipment to computer room and the top to save energy.
2. dress: If the building is under construction and into workWhen it is best not to wear sandals, shoes should not be too hard or too soft, to prevent his leg or foot. It is best to wear long-sleeved shirt, long pants, avoid scratches skin building materials, construction unit should also borrow a hat to wear.
3. measurement tools: on-site lender sometimes inconvenient, it is best to bring their own. General measurement need a vertical ladder only 5 m steel measuring tape, ladder required a 20 m leather measuring tape, if scene light darker flashlight is indispensable. Large site best bring compass in the building or buildings in disorientation (above tool price does not exceed 40 million). Climb the tall staircases physical exertion is large, you can take a bottle of water. Don't forget to bring paper and pencil!
4. tie: Wells road measuring best someone, especially when measuring the escalator wells road, a man of very inconvenient, you can go with a colleague, or asking the user to send people to meet.
5. understanding field: measurement before construction units to the user or technician understand scene to purposeful preparation tool, the focus on the special structure. For larger footprint, the number of elevator shafts comparison dispersed large projects before entering the site to the user to a general layout, or draw your own location a lift to the distribution plan to successfully locate each well road location.
9. other matters
1. for the time being you cannot be sure of the civil structure and cannot be measured (e.g. Wells road, dirt or water within) data must be estimated and guessing, should remind the user data implemented promptly notify the manufacturer, or on the scene again after measuring conditions.
2. should log user or construction project contact person and contact phone number, so that there are technical problems when manufacturers designers can directly contact with on-site technical staff.
3. measurement of well road and civil construction parameter to confirm it is best to carry out accurate before signing contract, so as to avoid later discovered wells road conditions and contract specifications or drawings, because well road rectification or elevator specifications change fees, arising from disputes with users, so most unfavourable to the elevator manufacturers.
4. sales personnel after signing contract should also be note tracking project progress, design or construction, or the project extension, it is timely to require users to make changes to the contract to avoid later lead to disputes.
5. for sightseeing lifts, roomless elevators, hydraulic lifts, vehicle lifts and other special types of lift, the manufacturer of wells road size difference is large, confirm that the construction should be based on the factory layout, but the same principle.
6. escalator wells road construction design reference standard: gb7588-2003 the elevator safety code for the construction and installation, gb16899-1997 the escalators and passenger conveyors safety code for the construction and installation. Specific conditions and data should be based on the layout of the various manufacturers.