What is the minimum width of an underground pedestrian crossing with shops on both sides? 50

According to the Code for Fire Protection Design of Buildings, the clear height and clear width of the fire lane through the door opening of the building should not be less than 4 meters, so the minimum width of the underground pedestrian crossing with shops on both sides is 4 meters.

The fire lane refers to the road for fire trucks to pass through in the event of a fire, and the fire lane shall meet the following requirements:

1. The net width and clearance height of the fire lane should not be less than meters, and the slope of the open space for fire trucks to stay should not be greater than 3%.

2. There should be at least two places in the circular fire lane that are connected with other lanes.

3. The end of the fire lane should be set up with a return lane or a return yard, and the area of the return yard should not be less than 12mx12m, and for high-rise buildings, it should not be less than 15mx15m; The area of the return yard for large fire trucks should not be less than 18 18 square meters.

4. The pipes and culverts on the fire lane should be able to withstand the pressure of large fire trucks.

5. When the fire lane passes through the door opening of the building, its clear height and net width should not be less than 4 meters; The net width between the door stacks should not be less than meters.

6. Annular fire lanes should be set up around high-rise buildings, and fire lanes can be set up along the two long sides of the building when it is difficult to set up circular fire lanes.

Generally, it is enough to meet the net height of 4 meters for fire protection, and it is best to have a width of more than 8 meters.

It is enough to meet the clear height of the fire truck passing.

At a minimum, it is necessary to take into account that 8 people can pass side by side.

Yes, see "Technical Code for Urban Pedestrian Bridges and Pedestrian Tunnels" CJJ69, which has specific instructions and regulations.

Technical Code for Urban Pedestrian Bridges and Pedestrian Tunnels CJJ69-2003

Yes, it is arranged in accordance with the fire protection requirements of urban tunnels in GB50974-2014.

50974 is the principle of refining the layout of the fire protection system.

Whether you need to set it I think you can refer to GB50016 and CJJ69CJJ69 is 95, which does not talk about the fire protection system GB50016 is an urban tunnel, for the four types and only the three types of tunnels for people or non-motor vehicles, there is no fire hydrant.

The width of the sidewalk should be calculated according to the multiple of the sidewalk, the minimum width.

No bai is less than. The width and capacity of the pedestrian strip shall comply with the following provisions.

Pedestrian bandwidth and maximum capacity are converted as follows: 1Station piers, pedestrian bridges and tunnels:

Width (m), maximum traffic capacity (person h) 1400 2On urban roads: width (m), maximum traffic capacity 1800 (person h).

Urban road width has two meanings: road width width and road width.

The width of the road width, i.e., the width between the right lines of the road, is the sum of the widths of the various land uses in the road cross-section.

The determination of urban road width should be based on the nature of the city, the scale and the requirements of road system planning, and comprehensively consider factors such as traffic volume (motor vehicles, non-motor vehicles and pedestrians), sunshine, ventilation, pipeline laying and building layout, and at the same time should integrate the different characteristics of urban traffic and urban construction in different cities in each period, combine far and near, make overall arrangements, and appropriately leave room for development.

The width of the road, which only includes the width of the roadway and the sidewalk, does not include the width of the land such as urban greening along the street on the outside of the sidewalk, which is mainly determined by the amount of traffic.

There is no special hard specification, urban roads require the width of sidewalks to be determined according to the size of different cities, the first amount, generally not less than 2m, you can check the specification provisions.

According to the "Urban Road Traffic Planning and Design.

BAI Specification.

When street trees, public transportation DAO stops, bus shelters, public kiosks and other facilities are set up along the sidewalk, the normal passage of pedestrians shall not be obstructed.

The determination of the capacity of a sidewalk shall be calculated based on the actual net width of the walkway that it can pass.

The width of the sidewalk shall be calculated in multiples of the pedestrian belt, and the minimum width shall not be less than. The width and capacity of the pedestrian strip shall comply with the following regulations. Pedestrian bandwidth and maximum capacity are converted as follows:

1.Station docks, pedestrian bridges and tunnels: width (m), maximum capacity (person h) 1400 2

On urban roads: width (m), maximum traffic capacity 1800 (person h).

On the sections of the city's main and secondary roads, the spacing of pedestrian crossings or crossings should be 250-300m.

When the width of the road exceeds four motorized lanes, pedestrian crossings shall be provided with pedestrian safety islands on the ** separation strip of the roadway or the separation strip between motorized lanes and non-motorized lanes. There is no legal width, only urban road design standards, and urban road design should be ahead of its time, taking into account the road capacity of the vision.

The cross-sectional design chapter of the Code for the Design of Urban Road Routes stipulates that, in general, the minimum width of the sidewalk is 3 meters.

I can give you the formula, you can figure it out yourself, I don't have a pen.

Let the length of the rectangle x the width y sidewalk be z so x multiplied by y=56 x+2z=8 2y+3z=20 and get the z-value according to the answer.

Is it just an underground passage? There is no commercial use, if there is a commercial use, you need to do a closed stairwell, at least two or more safety exits, in addition to look at the construction area, if the building area is too large, you need to set up an independent fire partition, generally this kind of underground passage will have a commercial use, so you can design according to the underground store, if the developer does not want to design it as a commercial (because the requirements will be higher), after the completion of commercial use, you need to declare a change in design.

The net width of the two-way entrance and exit ramp of the fire protection shall not be less than 7m, the width of the motorway for one-way driving shall not be less than 4m, the small lane for two-way driving shall not be less than 6m, and the lane above medium-sized vehicles for two-way driving shall not be less than 7m; The width of the non-motorized lane for one-way driving should not be less than, and the width of two-way driving should not be less than.

According to the Code for Garage Building Design, JGJ 100-2015

In the total plane of the garage, the width of the motorway for one-way driving should not be less than 4m, the small lane for two-way driving should not be less than 6m, and the lane above medium-sized vehicles for two-way driving should not be less than 7m; The width of the non-motorized lane for one-way driving should not be less than, and the width of two-way driving should not be less than.

Note: The width of the motor lane specified in this article refers to the width of the motor lane not used by fire trucks, and the width of the fire lane should also meet the width requirements of the fire code.

The requirements for the width of the lanes above the one-way and two-way medium-sized vehicles specified in this article are consistent with the provisions of the current national standard "General Principles for the Design of Civil Buildings" GB 50352, and the requirements for small lanes for two-way driving are consistent with the provisions of the current national standard "Code for Planning and Design of Urban Residential Areas" GB 50180.

For mixed traffic roads for motor vehicles and non-motor vehicles, non-motorized lanes should be increased in one direction on the basis of the width of the motor vehicle road. For roads with frequent vehicular traffic, the width of the pedestrian passage should be increased not less than the width of the roadway.

The net width of the two-way entrance and exit ramp of the fire protection shall not be less than 7m, the width of the motorway for one-way driving shall not be less than 4m, the small lane for two-way driving shall not be less than 6m, and the lane above medium-sized vehicles for two-way driving shall not be less than 7m; The width of the non-motorized lane for one-way driving should not be less than, and the width of two-way driving should not be less than.

Code for Garage Building Design

OK. 1. According to the "Code for Fire Protection Design of Buildings", the total length of L-shaped buildings exceeds that.

When the length of 220 meters or more than 150 meters along the street is long, a fire escape through the building should be provided. You now have a total length of 180 meters, a street length of 100 (just one side), and you don't need to set up a fire lane through the building.

According to the article, if there is a closed inner courtyard or patio, it is advisable to set up a fire lane that can enter the inner courtyard.

In addition, according to the provisions, the depth (width) of the building should not exceed 50 meters, and the fire department may require you to set up a fire lane through the building according to the situation.

2. According to Article 1 of the Code for Fire Protection Design of High-rise Civil Buildings, high-rise buildings must first be equipped with circular fire lanes, that is, there should be fire lanes around this L-shaped building. If this is not possible, it can be relaxed to have fire lanes along two long sides (i.e. two 100 meters). The total length shall not exceed 220, and the length along the street shall not exceed 150, and there is no need for a fire lane through the building.

Fire Escape:

Fire passage refers to the passage where firefighters carry out rescue and evacuation of trapped people, such as staircases and aisles, where fire indicators are installed. Fire escapes play a role that cannot be underestimated in all kinds of dangerous situations.

Pedestrian Walkway:

Pedestrian access is usually divided into roller turnstile and roller gate systems. No roller turnstile can pass through directly, without barriers. The roller gate system can be compatible with IC card, ID card, barcode card, fingerprint and other card reading and identification equipment, which can easily provide a civilized and orderly way of passage for personnel entering and exiting, and effectively manage the entry and exit of personnel.

80 meters along the street.

The length of the road needs to be set from the sidewalk, and the length of the street on one side is more than 160 meters or the total length of the building is more than 220 meters, and the fire lane with a height and width of not less than 4m needs to be set up.

Second question: Yes, if you meet the conditions for setting up a fire lane, you don't need to set up additional pedestrians.

"Code for Fire Protection Design of Buildings" GB50016-2006 stipulates:

The roads in the block should consider the passage of fire trucks, and the distance between the road centerlines should not exceed 160m. When the length of the street part of the building exceeds 150m or the total length exceeds 220m, a fire lane through the building shall be provided. When there is a real difficulty, a circular fire lane should be set up.

When a building with a closed inner courtyard or patio is located along the street, a pedestrian passage connecting the street and the inner courtyard (stairwells can be used) should be set up, and the distance between them should not be greater than 80m.

The clear width and clearance height of the fire lane should not be less than. The slope of the open space for fire trucks to stay should not be greater than 3%. ”

Code for fire protection design of high-rise civil buildings GB 50045-95 (2005 Edition) stipulates:

Around high-rise buildings, there should be a circular fire lane. When it is difficult to set up a circular lane, a fire lane can be set up along the two long sides of the high-rise building, and when the length along the street of the building exceeds 150 meters or the total length exceeds 220 meters, a fire lane through the building should be set up at a moderate position.

When high-rise buildings with enclosed inner courtyards or patios are located along the street, a pedestrian passage connecting the street and the inner courtyard (stairwells can be used) should be set up, and the distance should not exceed 80 meters.

The width of the fire lane should not be less than 4m, the fire lane should be greater than 5m from the outer wall of the high-rise building, and there should be no obstacles within 4m above the fire lane. ”

To sum up, when a high-rise building with an enclosed inner courtyard or patio is located along the street, a pedestrian passage connecting the street and the inner courtyard (stairwells can be used) should be set up, and the distance should not exceed 80m.

When the length of the building along the street exceeds 150 meters or the total length exceeds 220 meters, a fire lane through the building should be set up in a moderate position.

Fire escapes can be used as sidewalks.