希尔顿电梯设计要求 Lift Specification.pdf

Hilton International Specifications Copyright - Sept 2005 1 Lift traffic handling capability, ride quality and reliability. Performance Traffic handling standards are based on Hilton standards and not necessarily general market standards. Ride quality consists of two elements, noise and vibration, which are essential to provide the comfort expected of Hiltons guests. In car noise and door operation noise are of particular importance, as is the vibration of the lift. Ride quality criteria should not be limited to guests lifts, and be applied to the back of house lifts as well. Escalators should operate quietly, as well as the step and handrail vibration being kept to a minimum. Reliability of all equipment is measured by uptime availability on a per unit monthly basis. Architectural finishes will be dependent on the particular property and will be detailed by the architectural design team and approved by Hilton International Technical Services. HILTON INTERNATIONAL GUIDELINES FOR HOTELS Strategic Performance Specification for lifts, escalators and loading bay equipment Hilton International Specifications Copyright - Sept 2005 5 GENERAL CONSIDERATIONS In addition to the technical aspects to be considered when selecting lift and escalator equipment, the following points should be taken into account when designing the systems to efficiently serve a hotel: - The size of the city, and location of the hotel in relation to it, the number of guest rooms and the hotel type (large convention, resort or tourist etc). The quantities and gross size of the public areas (function rooms, restaurants, health clubs, parking and retail etc.), their locations within the building, and the number of levels away from ground level. These factors will significantly affect the performance requirements of the vertical transportation system. The adequacy of lifts for room service, kitchen service, housekeeping and maintenance, needs along with the handling of furniture, convention display boards and other equipment. Hotel guests should not have to climb stairways or ramps in order to reach lifts or escalators, but where the building design makes this necessary the rise should be limited to a maximum of 1.20 m. Provision for disabled access should be borne in mind in these situations. To accommodate guests unable to use stairs and those who cannot comfortably use escalators, all public levels are to be accessible by lifts that have controls fully suitable for disabled passengers. A separate lift may be necessary for this purpose. Function rooms, major dining rooms and other public areas where large concentrations of people move to and from these areas at the same time should preferably be located on the main lobby level. If this cannot be accomplished, they should be located only one floor above or below the main lobby level. HILTON INTERNATIONAL GUIDELINES FOR HOTELS Strategic Performance Specification for lifts, escalators and loading bay equipment Hilton International Specifications Copyright - Sept 2005 6 When public areas have to be located above the main lobby level, a decision has to be made about whether they are to be accessed by the main guest lifts or escalators. If the guest lifts are to be used, the design of the lift system and the number of guest lifts that must incorporate security control has to be considered. Resident guests should not be subjected to undue waiting times as a result of heavy demand from the public areas, nor should they be at risk from unauthorized persons accessing the guest floors. For control and security, passenger lifts that serve the guest floors should only originate from the main lobby level. Additional shuttle lifts or escalators should then be used to serve underground parking levels, retail and other public areas. This will reduce the risk of unauthorized public access to guest floors. All lifts shall be connected to the central fire monitoring system and have automatic circuits to ground the equipment in the event of fire. Passenger lift cars should be designed to create an atmosphere of being roomy, smooth and reliable, a seamless transition from the main lobby. Use of glass and mirrors, good lighting, TV screens for information and smooth operation add to the guest experience. For further guidance refer to Hilton International Technical Services. HILTON INTERNATIONAL GUIDELINES FOR HOTELS Strategic Performance Specification for lifts, escalators and loading bay equipment Hilton International Specifications Copyright - Sept 2005 7 PERFORMANCE CRITERIA The following criteria should be used when calculating the number of lifts needed to provide the level of quality service required within Hilton Internationals 4 and 5 star hotels. This applies both to passenger lifts and back of house service lifts. The ratio of Back of House lifts to Guest lifts should be 50-75%. The number of Car Park lifts should be calculated by the number of car bays provided and based upon one passenger per car or in the case of a convention hotel this should be increased to two passengers per car. Escalator nominal handling capacity with 1000mm wide steps at a speed of 0.5 m/s is 375 people per 5 minutes, or 4500 people per hour. For convention halls escalators should be considered as an efficient means of moving delegates both up and down, assuming the convention halls are one or two floors away from the ground floor main lobby. Key data should be provided in order to calculate the traffic performance. This data should be obtained from all stakeholders, and normally would include the following;- number of rooms per floor, floor sizes, floor heights, hotel use ( convention, resort, commercial), special use floors such as fitness centers/pools, car park levels, basements and use, location of restaurants and table covers including times of opening, security requirements, staff access points, convention hall size and population. The following calculations need to be completed in order to design the right lift system appropriate for the individual hotel. Round Trip Time (RTT) is the time a lift will take to travel from the main entrance to the upper floors and back again, taking due account of passenger loading and unloading. It is measured conventionally as the average time between each arrival of cars at the main floor. Handling Capacity is defined as the maximum number of passengers that a system can move within a five-minute period. It is determined by the size and quantity of cars and lift speed, with other factors such as acceleration, deceleration, door operation and system control logic, which also influences its value. Interval has the most impact on the quality of service to passengers, i.e. how long they must wait for a lift. It is calculated as the average RTT divided by the number of lifts in a group. It is also determined by the size and quantity of cars and elevator speed, with other factors such as HILTON INTERNATIONAL GUIDELINES FOR HOTELS Strategic Performance Specification for lifts, escalators and loading bay equipment Hilton International Specifications Copyright - Sept 2005 8 acceleration, deceleration, door operation and system control logic, which also influences its value. It is assumed the Car Loading value stated in the results is the average number of passengers per car per trip in order to calculate the Interval and Handling Capacity values for this solution. The value is based on practical experience of typical average car loading for 5 star hotels. This will vary according to the market positioning of the hotel. i.e. city use low room occupancy ; resorts may have higher room occupancy. Traffic performance requirements for Guest lifts Peak demands 2-way traffic - 45% up and 55% down. MinimumMaximum Intervals (Average wait time)25 - 30 seconds Long waits any floor70 seconds Lift car capacity16 persons21 persons Speed 1 m/sec 4 m/sec Loading factor40%60% Handling capacity12 15 % Occupants per room1.32.0 HILTON INTERNATIONAL GUIDELINES FOR HOTELS Strategic Performance Specification for lifts, escalators and loading bay equipment Hilton International Specifications Copyright - Sept 2005 9 Ride Performance Ride performance and reliability requirements need to be maintained for the life time of the equipment. It is recommended that all lift and escalator equipment is to be provided by leading lift manufacturers or joint ventures of such companies who have been qualified for the particular project. Qualification of the supplier should include the following assessment criteria;- ISO accreditation, financial status, direct manpower in field, supervisor to manpower ratio, % of backlog for next years capacity, supply chains lead times of critical components, safety policies and Lost Time incident records, warranties and restrictions, project mangers resume, and for major projects a Managing Directors commitment letter. Ride Performance key data 2.5m/sec Passenger liftsService Lifts any speed Noise in car52db(A)48db(A) 53db(A) door open and close56db(A)56db(A) 56db(A) Comfort Lateral movement 10 mg8 mg 10 mg Side to side10 mg8 mg 10 mg Acceleration0.8-1.0m/sec2 0.8-1.0m/sec2 0.8-1.0m/sec2 /Decelerationmaxmax max Floor leveling full car load+/- 3mm+/- 3mm +/- 3mm HILTON INTERNATIONAL GUIDELINES FOR HOTELS Strategic Performance Specification for lifts, escalators and loading bay equipment Hilton International Specifications Copyright - Sept 2005 10 Reliability Performance Reliability performance should be measured by the amount of Availability of each piece of equipment. This is measured monthly against unplanned stoppages on a per unit basis. Service regimes should be stated clearly at the time of tendering with an indication of maintenance hours required per month including the hours the equipment will be taken out of service. At the same time it is expected that the lift performance be maintained to the agreed performance standards at the time of handover of the installations. A five-year maintenance chart should be clearly displayed in the machine room in addition to any suppliers own recording systems. Annual measurement of performance criteria should be reported, in addition to quarterly reliability reports. The service agreement should include the reliability performance and ride quality performance requirements. Reliability Performance 2.5m/sec Pass liftsService Lifts Availability99.7%99.7%99.7% Min. maintenance Hours 24 18 18 Service performance Reportsquarterlyquarterlyquarterly Performance readingsannualannualannual HILTON INTERNATIONAL GUIDELINES FOR HOTELS Strategic Performance Specification for lifts, escalators and loading bay equipment Hilton International Specifications Copyright - Sept 2005 11 BASIC LAYOUT REQUIREMENTS The passenger lift cab sizes will be large enough so that during the evening dinner hour and the morning peak uses, cabs are occupied on average by less than 55% of the maximum permitted number of passengers, when separate baggage handling lifts are provided. This loading occupancy should be reduced to 40% when guest baggage is carried in the same lifts. Passenger cab sizes smaller than 1250 kg capacity are unacceptable except when specifically designed for disabled use. Those below 800kg are unacceptable. The clear cab height should not be less than 2.30 m as measured from the car floor to the underside of the dropped ceiling. Large lifts add to the overall ambience and increase the perceived status of the hotel. Passenger lifts will have automatic two-panel centre opening doors with clear openings no less than 1100 mm wide and 2100 mm high. The exception to this is where small lifts are provided specifically for the use of disabled, in which case the doors should be no less than 900 mm wide. The maximum walking distances for guests (from their room to the passenger elevators) are not to exceed 60 m whenever possible. If a pair or more lifts face each other across a corridor, the minimum lobby width should be twice that of the depth of the largest car. However the lobby width should not exceed a width of 4.5m. Lift arrangements should limit the number of cars in a straight line (adjacent to each other) to 4. Each passenger lift should have 2-car operating stations (panels), 1 on either side of the car. The stations should have call-registered lights with each landings push-button along with a car position indicator visible to all passengers mounted above the operating panels. Raised Braille indication is required for visually impaired passengers. Hall call destination systems should be evaluated on an individual project basis. Every public lift should also be fitted with a visual information panel such as television screen or electro-luminescent liquid crystal display, capable of providing, information on events, local news and other in-house information. Simple dot-matrix displays are not acceptable as they to not have the above mentioned systems. HILTON INTERNATIONAL GUIDELINES FOR HOTELS Strategic Performance Specification for lifts, escalators and loading bay equipment Hilton International Specifications Copyright - Sept 2005 12 Each landing should have enough lift lobby push-button stations so that the distance from the push button fixture to any lift is less than 7.0 m. In landings where lifts are located on opposite sides there shall be at least one push-button station on either side. Each lift entrance must have Up and Down hall Indicators and audible indication for sight impaired guests, along with a position indicator above each entrance at the main lobby floor. If possible, major kitchen areas and laundries should be located on the same level as the truck receiving docks and storage areas. If this is not possible and if these areas are on levels requiring lifts to move materials, these lifts should be freight lifts of robust design to accommodate the easy handling of bulk food, laundry items, furniture, refuse and other such items. The freight lifts should be finished in cabin materials that can be cleaned easily to maintain sanitary conditions. Function rooms and other convention areas should be located for ease of supply from the kitchens, receiving docks and storage areas. If lifts are required to reach these levels and to transport prepared foods and other materials, they have to be large enough to be able to meet the required schedules efficiently. The service needs of rooftop restaurants, bars and lounges must be included when determining the number, speed and sizes of room service elevators. Depending upon the size for rooftop public areas, it may be necessary to provide specific lifts for service to these areas only. Room service lifts may be considered as backups to supplement the special needs for transporting freight, but the system design should not depend upon the necessity of removing most or all of the room service lifts from their normal service to meet freight service and schedul