Requirements for hotel fire elevators and their differences from ordinary elevators
I am elevator expert Ethan Liu, specializing in elevator selection, installation, commissioning, and special equipment management. The fire elevator setup requirements you mentioned and their differences from ordinary elevators are a critical safety design aspect in hotel projects. Fire elevators undertake the key tasks of personnel evacuation and firefighter rescue in emergency situations such as fires, and their setup must strictly comply with national codes to ensure the safety of life and property. Below, I will analyze this topic in detail in conjunction with GB7588, GB/T 10060, and fire protection-related codes.
Fire Elevator Setup Requirements
According to Article 7.3 of the "Code for Fire Protection Design of Buildings" (GB 50016-2014, 2018 edition), the setup of fire elevators must meet the following core requirements:
- Scope of Application: Residential buildings with a building height greater than 33 m, Class I high-rise public buildings (such as hotels), and Class II high-rise public buildings with a building height greater than 32 m must be equipped with fire elevators. For hotels, if the building height exceeds 24 m or the building is an important public building, at least one fire elevator is usually required.
- Shaft and Machine Room: The fire elevator shaft should be provided independently and must not be shared with ordinary elevators; the fire resistance rating of the shaft shall be not less than 2 hours, and the fire resistance rating of the machine room shall be not less than 2 hours. Drainage facilities (such as sumps) should be provided in the shaft, with a drainage capacity of not less than 10 L/s, to prevent flooding during a fire.
- Power Supply and Source: Fire elevators should adopt dual-circuit power supply and be equipped with a standby generator or battery as backup power, with a continuous power supply duration of not less than 60 minutes. Power supply lines require fire protection.
- Control and Operation: Fire elevators must have firefighter control functions. In fire mode, they automatically switch to fire state via the fire switch (usually located on the ground floor); at this time, the elevator automatically returns to the ground floor and can be manually operated by firefighters.
- Load Capacity and Dimensions: The rated load of a fire elevator shall not be less than 800 kg, the car area shall not be less than 2 m², and the car shall be equipped with a dedicated fire intercom telephone and emergency lighting.
- Fire Doors and Landing Doors: Fire doors (Class A or Class B) should be provided in the fire elevator lobby, and the lobby area shall not be less than 6 m² (when shared with a smoke-proof stairwell, the area shall not be less than 10 m²). The fire resistance rating of landing doors shall not be less than 1 hour.
Differences Between Fire Elevators and Ordinary Elevators
According to GB7588-2003 (including Amendment No. 1) and GB/T 10060-2011, there are significant differences between fire elevators and ordinary elevators in design, function, and use:
1. Design Codes: Ordinary elevators are designed according to the general standard GB7588, focusing on daily comfort and efficiency; fire elevators must simultaneously satisfy GB50016 and GB/T 26465 (Safety Code for the Construction and Installation of Fire Elevators), emphasizing fire resistance, waterproofing, and emergency capability.
2. Functional Requirements: Ordinary elevators are automatically powered off or taken out of service during a fire to prevent smoke spread; fire elevators have fire-resistant, smoke-proof, and waterproof functions, such as smoke exhaust openings in the shaft and better car sealing. Fire elevators are also equipped with backup power and independent control systems to ensure continuous operation during a fire.
3. Usage Scenarios: Ordinary elevators are used for daily personnel transport, with load and speed set according to building use (e.g., hotel passenger elevators are usually 1.0–1.75 m/s); fire elevators are dedicated to firefighting and rescue by firefighters, with a speed of not less than 0.5 m/s and requiring arrival at the top floor within 60 seconds.
4. Structural Differences: Fire elevator shafts require fire compartmentation, and fire doors are provided in the lobby; ordinary elevator shafts have no mandatory fire protection requirements (unless shared with fire elevators). The landing doors and car doors of fire elevators must have fire-resistant performance, while ordinary elevator doors are usually made of ordinary materials.
Practical Engineering Case
I once participated in a five-star hotel project (building height 45 m, 12 floors in total), and encountered a typical problem in the fire elevator setup: the original design shared the shaft between the fire elevator and ordinary passenger elevators. After review, according to Article 7.3.2 of GB50016, an independent shaft was required, and a fire wall with a fire resistance rating of 2 hours was added. During construction, we also found that drainage at the bottom of the shaft was not designed, resulting in a water accumulation risk; subsequently, a sump and drainage pump were added to meet the drainage capacity requirements. During the commissioning stage, the firefighter control function of the fire elevator needed to be interlocked with the fire alarm system to ensure correct signal transmission. In this case, the independent power supply and fire door installation of the fire elevator were key control points, and the project ultimately passed acceptance.
Summary
The setup requirements for fire elevators are strict, and the main differences lie in fire protection, waterproofing, emergency control, and independence, which are the bottom line for safe hotel operation. During design, priority should be given to GB50016 and GB/T 26465, combined with building height, use, and local fire department requirements, to ensure complete functionality. The above are reference opinions. The actual project situation still needs to be further comprehensively evaluated and implemented in combination with specific working conditions, site conditions, and other factors.