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GB 50352-2019 English PDF (GB50352-2019)

GB 50352-2019 English PDF (GB50352-2019)

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GB 50352-2019: Uniform standard for design of civil buildings

In order to meet the "applicable, economic, green and beautiful building" principles for civil buildings, to meet the basic requirements of safety, sanitation and environmental protection, and to unify the general design requirements of various civil buildings, this standard is prepared. This standard is applicable to the design for new construction, extension and renovation of civil building.
GB 50352-2019
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
UDC
Uniform standard for design of civil buildings
ISSUED ON: MARCH 13, 2019
IMPLEMENTED ON: OCTOBER 1 01, 2019
Issued by: Ministry of Housing and Urban-Rural Development of the People's Republic of China;
General Administration of Quality Supervision, Inspection and
Quarantine of the People's Republic of China.
Uniform standard for design of civil buildings
1 General provisions
1.0.1 In order to meet the "applicable, economic, green and beautiful building" principles for civil buildings, to meet the basic requirements of safety, sanitation and environmental protection, and to unify the general design requirements of various civil buildings, this standard is prepared.
1.0.2 This standard is applicable to the design for new construction, extension and renovation of civil building.
1.0.3 In addition to the implementation of relevant national laws and regulations, civil building design shall also meet the following requirements:
1 The relationship between people, architecture and the environment shall be properly addressed in accordance with the principles of sustainable development. 2 Ecological environment must be protected to prevent environment pollution and destruction.
3 People orientation shall be adopted to meet the physical and spiritual needs of people. 4 Basic national policies of saving land, energy, water and raw materials shall be implemented.
5 The design shall meet the requirements of the local urban and rural planning and coordinate with the surrounding environment. It should reflect the regional culture and times features.
6 As for the building and environment, the disaster prevention safety measures such as fire prevention, earthquake resistance, flood prevention, air defense, wind, snow and thunder resistance shall be adopted comprehensively.
7 Barrier-free (accessible) facilities shall be provided in indoor and outdoor environments to facilitate the use of handicapped people.
8 All construction involving famous historical and cultural cities, towns, villages, historical and cultural blocks, cultural relics protection units, historical buildings, scenic spots and natural reserves shall comply with the provisions of relevant protection 2 Terms
2.0.1 civil building
the general term of the building for people living and public activities 2.0.2 residential building
building for people to live and use
2.0.3 public building
building for people to conduct various public activities
2.0.4 accessibility facilities
service facilities to ensure safe passage and convenient use of personnel, and to be constructed in conjunction with civil construction projects.
2.0.5 construction site
site for the construction project, which is determined according to the nature of the land and the use of ownership
2.0.6 boundary line of roads
boundary line of land for urban roads (including residential area roads) 2.0.7 property line
boundary line for the land use rights of various types of construction projects 2.0.8 building line
boundary line that the planning administrative department separately defines and the main body of a building (structure) above the ground shall not extend beyond within the boundary line of roads and construction land boundary
2.0.9 building density; building coverage ratio
the ratio (%) of the total area of the foundation of the building to the total land area within a certain land area
2.0.10 plot ratio; floor area ratio
the ratio of the total area of the building to the area of the land within a certain land use and floor use range
2.0.11 greening rate
the ratio (%) of the total area of various types of green space to the total area of the land (%) within a certain land use area
2.0.12 insolation standard
2.0.22 ramp
ramped traffic passage for pedestrians and vehicles connected to indoors or outdoors floors or grounds of different elevations
2.0.23 railing
protective partitioning member for securing personal safety or separating spaces with a certain safety height
2.0.24 stair
building component consisting of steps for continuous walking, rest platforms, and rails for safety maintenance rails (or breast board), and corresponding support structures and for vertical traffic between floors
2.0.25 deformation joint
structural joint preserved to prevent the building from being exposed to external factors, additional deformation and stress generated inside the structure which causes to be cracked, collided or even destroyed, including expansion joints, settlement joints and anti-seismic joints
2.0.26 building curtain wall
building peripheral retaining wall consisting of the panel and the supporting structural system (supporting device and supporting structure), which can have a certain displacement capacity relative to the main body structure or has a certain deformation capability, and does not bear the action of the main structure
2.0.27 suspended ceiling
ceiling suspended under the roof or slab structure of the house
2.0.28 pipe shaft
vertical hoist-way in a building for arranging vertical equipment pipeline and equipment 2.0.29 smoke uptake; smoke flue
pipes and shafts that emit various flue gases
2.0.30 air shaft
pipelines and shafts that exhaust indoors bad gas or transmit fresh air 2.0.31 decoration; finishing
detailed processing and artistic processing of the interior and exterior spaces of the building based on the main structure of the building
2.0.32 daylighting
measures to make natural illuminance obtained for the space inside the building meets the requirements of use, safety, comfort, and aesthetics, in order to ensure that the living, 4 Planning control
4.1 Urban planning and city design
4.1.1 Control indicators such as the land use nature, plot ratio, building density, greenbelt rate, building height of for construction projects and annual runoff total control rate of its construction base shall conform to the relevant provisions of the local controlled detailed planning.
4.1.2 Architecture and its environmental design shall meet the requirements of the urban / rural planning and the urban design in the respect of the control and guidance on the local target orientation, spatial form, landscape and environmental quality, and shall meet the design control requirements of urban design for public space, architectural groups, landscape, municipal and other environmental facilities.
4.1.3 Architectural design shall be stressed in the integration and coordination of architectural group space and natural landscape environment, the protection and development of historical culture and traditional features, the organization and shaping of public activities and public space, and shall meet the following requirements: 1 The shape, volume, scale, color and spatial combination of buildings shall be coordinated with the surrounding spatial environment;
2 The architectural style, height and interface, etc. of buildings in the important interface control section of cities shall be coordinated with the buildings in the adjacent building bases.
3 The construction site, green planting, landscape structures and environmental embellishment, municipal engineering facilities, landscape lighting, marking system and public art within the construction base shall be designed and coordinated with the buildings and their environment.
4 Permeable pavement should be adopted for roads, parking lots and hard ground in the construction base:
5 The outdoor open space and walking system of the building base and adjacent building base buildings should be connected with each other.
4.2 Construction base site
4.2.1 The construction base shall be adjacent to urban roads or township roads, otherwise, connecting roads shall be set up and shall meet the following requirements: entrances and exits shall not be set within 70.0m from the red line intersection of roads. 2 The nearest edge line from pedestrian crossing, pedestrian overpass and pedestrian underpass (including approach roads and approach bridges) shall not be less than 5.0m; 3 The distance from the subway entrance, public transportation platform edge shall not be less than 15.0m;
4 The distance from the nearest edge of the entrance and exit of parks, schools and buildings used by children, the elderly and the disabled shall not be less than 20.0m. 4.2.5 Bases for building like large and oversize transportation, culture, sports, entertainment, commerce and other densely populated construction shall meet the following requirements:
1 The total length of the building base adjacent to the urban roads shall not be less than 1/6 of the perimeter of the building base;
2 The number of entrances and exits of the construction base shall not be less than 2 and they should not be set on the same urban road.
3 In front of the main entrance and exit of the building, a personnel distribution site shall be set up, and its area and length and width shall be determined according to the nature of use and the number of people.
4 If greening, parking or other structures are set up in the construction base, there shall be no obstacle to the distribution of personnel.
4.3 Building surface eruption
4.3.1 Except for arcade buildings, building connection, subway-related facilities and municipal public facilities such as pipelines, pipe trenches and pipe corridors connecting cities, buildings and the following ancillary facilities shall not be built in a way that protruding out of boundary line of roads or property line:
1 Underground facilities, shall include supporting piles, underground diaphragm wall, basement floor and its foundation, septic tanks, all kinds of pools, treating pond, settling pond and other structures and other ancillary facilities, etc.: 2 The above-ground facilities shall include porch, corridor, balcony, outdoor staircase, bay-window, air conditioning unit, awning, overhanging eaves, decorative framework, fixed sunshade, steps, ramp, framed flower bed, wall, platform, water apron and open trench, basement air inlet and outlet, basement entrance and outlet, water-collecting well, light well, chimney, etc.
5 Site planning
5.1 Architectural composition
5.1.1 The architectural composition shall enable the rational shunt of people, traffic and logistics in the building base to prevent interference of them, and shall be conducive to firefighting, parking, personnel distribution and accessibility facilities. 5.1.2 Building interval shall meet the following requirements:
1 Building interval shall meet the requirements of the current national standard GB 50016 Code for fire protection design of buildings as well as the local urban planning requirements;
2 Building interval shall meet the requirements of natural lighting for building houses in Subclause 7.1 of this Standard, and the building and site with sunshine requirements shall meet the requirements in the relevant insolation standards of the country. 5.1.3 Architectural composition shall prevent and resist disasters such as cold, summer heat, high winds, heavy rain, snow and dust according to the regional climate characteristics, and ventilation by using natural air flow shall be used to prevent adverse microclimate.
5.1.4 According to the location, direction and intensity of noise sources, comprehensive measures in building functional zoning, road layout, building orientation, distance, terrain, greening and barrier function of buildings shall be taken to prevent or reduce environmental noise.
5.1.5 Sanitary distance between buildings and different pollution sources shall conform to the requirements of the current relevant sanitary standards of the country. 5.1.6 Architectural composition shall ensure the protection of cultural relics and ancient and famous trees to avoid damage in accordance with relevant national and local regulations.
5.2 Road and hard standing
5.2.1 Base roads shall meet the following requirements:
1 Speed limit facilities shall be set up on the vehicle road at the junction of the base road and urban road, and the roads shall be accessible to the safety exit of the building; 2 Walkways accessible to streets and inner yard shall be built for the building along the garage and the connecting road within the construction base. The buffer section shall start from the hillslope of the garage entrance / exit ramp and meet the following requirements: 1 The turning radius of the entrance / exit buffer section and the connecting roads within the base should not be less than 5.5 m;
2 If the entrance / exit is perpendicular to the base road, the buffer section shall not be less than 5.5 m in length;
3 If the entrance / exit is parallel to the base road, the entrance / exit has a buffer section not less than 5.5 m in length before accessing the base road;
4 When the entrance /exit is directly connected to the urban road outside of the base, its buffer section should not be less than 7.5 m in length.
5.2.5 Outdoor motor vehicle hard standings shall meet the following requirements: 1 Parking lot shall meet the drainage requirements, and its drainage slope shall not less than 0.3%;
2 The entrance / exit of a hard standing shall be designed in a way to avoid crossed vehicle travel;
3 A hard standing shall have accessible parking spaces, and their requirements and number shall meet the current national standard GB 50763 Codes for accessibility design; 4 Reasonable vegetation with trees for sunlight shading shall be designed for hard standings.
5.2.6 The quantity of entrances / exits for outdoor motor vehicle hard standing shall meet the following requirements:
1 If the number of parked vehicles is 50 and below, one entrance / exit may be set up and it should have the two-way travel function;
2 If the number of parked vehicles is 51 to 300, two entrances / exits shall be set up and they should have the two-way travel function;
3 If the number of parked vehicles is 301 to 500, two entrances / exits shall be set up with the two-way travel function;
4 If the number of parked vehicles is more than 500, three entrances / exits shall be set up and they should have the two-way travel function;
ground drainage.
5 The design elevation of the site should be more than 0.2 m higher than the level of the lowest municipal road section surrounding this site; if the municipal road elevation is higher than the base elevation, the measures shall be taken to prevent foreign water from entering the base.
6 The design elevation of the site shall be higher than the highest multi-year underground water level.
7 As for a base with a large area or more complex terrain, its architectural composition shall make the amount of earth and stone works minimized by reasonable use of the terrain and make a balance between filling and excavation.
5.3.2 The road design slope within the building site shall meet the following requirements:
1 The longitudinal gradient of the motor vehicle road in the base shall not be 0.3% ~ 8%; if the slope is larger than 8%, the slope length shall not be higher than 200.0 m. If the slope gradient is smaller than 0.3% in case of special difficulty, effective drainage measures shall be taken; on special sections, the slope gradient shall not be larger than 11%, and its length shall not be larger than 100.0 m; in snow or frozen areas, the slope gradient shall not be larger than 6%, and its length should not be larger than 350.0 m; the transverse gradient should be 1% to 2%.
2 The longitudinal gradient of non-motor vehicle road in the base shall not be smaller than 0.2%, and its maximum longitudinal gradient should not be larger than 2.5%; in a difficult case, it shall not be larger than 3.5%; for a maximum longitudinal gradient of 3.5%, the slope length shall not be larger than 150.0 m; the transverse gradient should be 1% ~ 2%.
3 The longitudinal gradient of the base walkway shall not be 0.2% ~ 8%, on the snow or frozen area, it shall not be greater than 4%; the transverse gradient shall be 1% to 2%; step walk shall be built if it is greater than the limit gradient.
4 Accessible passage shall be set up in the main areas where the crowd flows within the base.
5 The designed longitudinal gradient of the road in the base in a mountainous or rolling region may be relaxed and shall meet the requirements of relevant local standards or be approved by local relevant authority.
5.3.3 The surface drainage for construction site shall meet the following requirements: on soil, comprehensive pipelines, loading of landscape and plant growth. 3 Water-proofing structure for building shall be root penetration resistant. 5.5 Layout of pipeline engineering
5.5.1 Pipelines should be laid underground; the engineering pipelines laid overhead and the facilities for them must meet the requirements of fire-fighting vehicle transit and rescue, not interfering with the normal activities of ordinary vehicles and pedestrians, and avoiding the impact on buildings and landscapes.
5.5.2 For the engineering pipeline connected with the municipal pipe network, its plane position and vertical elevation shall be designed based on the unified urban coordinate and elevation systems.
5.5.3 The laying of the engineering pipeline shall not affect the safety of the building and prevented from damages due to corrosion, subsidence, vibration, external load, etc. 5.5.4 Comprehensive layout of pipelines shall be taken according to the characteristics and requirement of them, and integrated pipe gallery should be used. Pipelines with the requirements on safety, hygiene and interference protection shall not be laid on the same ditch or in a close way. The pipelines with mutual interference shall be in different ditches (rooms) of the comprehensive pipe gallery.
5.5.5 The direction of the underground engineering pipelines should be parallel or vertical to the main direction of road or building. Pipelines shall be laid at a depth from shallow to deep in the direction from building to road. Main pipes should be arranged on a side of major user or a side with relatively more branches; engineering pipelines shall be laid with smaller length and less turning, avoiding crossing with road, railway, river course, trench and other pipelines; in a difficult case, the crossing angle shall not be less than 45??. 5.5.6 The pipelines parallel to a road should not be arranged under car lane; if needed, the pipelines with larger depth of burial and less renovation may be laid under car lane. 5.5.7 The horizontal and vertical clear distance and burial depth of the engineering pipelines, and the horizontal clear distance between the engineering pipelines and the building (structure) and greening trees shall meet the requirements of the relevant national standards. If it is difficult to meet the requirements due to the planning and the restriction by the current situation, the minimum horizontal clear distance may be reduced properly upon the safety measures are taken.
5.5.8 Outdoor engineering pipelines in the regions with a seismic precautionary intensity of 7 degree and above, permafrost regions, cold regions, collapsible loess regions and expansive soil regions shall meet the requirements of relevant national standards. 6 Architecture design
6.1 Determining of rate number of users
6.1.1 For the building indicating the number of users like the number of user seats, the width of the supporting facilities, exit passageways, stairs and safety exits shall be c...

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