What are the rules for the fire protection structure of elevator shaft, cable shaft and pipeline shaft? , and ventilation and smoke exhaust pipes passing through floors and walls?

The elevator shaft in the building shall meet the following requirements:

(1) Elevator shafts shall be set independently. It is forbidden to lay flammable gas and Class A, B and C liquid pipelines in the hoistway, and cables and wires unrelated to the elevator shall not be laid. There should be no other openings in the shaft wall of the elevator shaft except elevator doors, safety escape doors and ventilation holes.

(2) Cable shafts, pipeline shafts, smoke exhaust ducts, exhaust ducts, garbage ducts and other shafts shall be set independently. The fire resistance limit of the shaft wall should not be lower than 1.00h, and the inspection door on the shaft wall should adopt Class C fire door.

(3) Cable wells and pipeline wells in buildings should be plugged with incombustible materials or fireproof plugging materials not lower than the fire resistance limit of this layer.

The holes of cable wells and pipeline wells communicating with rooms and walkways in buildings should be blocked with fireproof sealing materials.

(4) The garbage chute in the building should be set by the external wall, and the exhaust port of the garbage chute should be directly opened to the outside. The garbage hopper should be made of incombustible materials and can be closed by itself.

(5) The fire resistance limit of the elevator landing door should not be lower than 1.00h, and it should meet the integrity and thermal insulation requirements specified in the current national standard "Measurement of Integrity, Thermal Insulation and Heat Flux Density of Elevator Landing Door" (GB/T 27903-2011).