Detail of GB 55031-2022

Introduction of GB 55031-2022

1 General Provisions 1.0.1 To regulate the basic scale of civil building space and parts, technical requirements and general technical measures, the development of this specification. 1.0.2 Civil buildings must implement this specification. 1.0.3 The construction and use of civil buildings should be maintained in accordance with the following basic principles. 1 should be in accordance with the principles of sustainable development, the correct treatment of people, architecture and the environment of the mutual relationship, the construction and use of function to match the reasonable space. 2 should implement the policy requirements of energy saving, land saving, water saving, material saving and environmental protection; 3 should be coordinated with the environment in which it is located, reflecting the characteristics of the times and regional culture. 1.0.4 Whether the technical methods and measures adopted in the construction of the project meet the requirements of this specification shall be judged by the relevant responsible subject. Among them, innovative technical methods and measures, should be carried out, demonstrated and meet the requirements of this specification on performance. 2 Basic provisions 2.1 Functional requirements 2.1.1 Civil building construction should follow the principles of safety, hygiene, health and comfort, to provide a reasonable use of space for people's living, working, communication and other social activities, the use of space should meet the basic scale of ergonomic requirements. 2.1.2 Civil building site selection should meet the safety requirements. 2.1.3 Residential buildings should guarantee the safety and privacy of the occupants' lives, and should meet the requirements of light, ventilation and sound insulation. 2.1.4 Education, office research, commercial services, public activities, transportation, medical and social services and other public buildings should meet the space and use requirements of various activities, but also to meet the requirements of traffic and personnel distribution. 2.1.5 When there is a combination of different functional places in civil buildings, in addition to the above provisions should meet the requirements, should also meet the following provisions. 1 each functional place should not reduce the basic safety and health standards of other functional places. 2 when the combination of functional places generating pollution, radiation and other functional places, the necessary safety protection measures should be taken. 3 when the combination of functional places of different safety levels, should be taken to ensure that each function, the corresponding measures to ensure the safety of the use of the place. 2.1.6 civil buildings should be configured to meet the basic use of functional needs of equipment and facilities. 2.1.7 civil buildings should be set up with the appropriate security and guidance signage system. 2.2 Performance and measures 2.2.1 Civil buildings should be integrated with fire, earthquake, flood, air, wind and snow, and lightning and other disaster prevention measures. 2.2.2 The structure of civil buildings should meet the corresponding design working life requirements. 2.2.3 Civil buildings should meet the requirements of barrier-free, and the facilities with barrier-free performance should be set systematically and consistently. 2.2.4 Interior and exterior decoration should not affect the safety of the building structure, and should choose safe and environmentally friendly decoration materials. Decoration materials, decorative surfaces or accessories and the main structure, the connection should be safe and solid. Building exterior decorative surfaces, components, doors and windows and other materials and structures should be safe and reliable, and should meet the functional and performance requirements within the design working life, and should be regularly maintained during use to prevent falls. 2.2.5 Assembly building should be integrated, modular, standardized and generalized prefabricated parts, components. 2.2.6 Outdoor public spaces, building spaces, building components and public, equipment and facilities of civil buildings should be regularly maintained, repaired and supervised on a daily basis. 3 Building area and height 3.1 Building area 3.1.1 Building area should be calculated by the horizontal projection area of the space enclosed by the outer surface of the external envelope structure at each natural floor (ground) surface of the building. 3.1.2 The total floor area shall be calculated as the sum of above-ground and underground floor areas, and above-ground and underground floor areas shall be calculated separately. 3.1.3 The building space above the outdoor design floor, the floor area shall be included in the above-ground floor area; the building space below the outdoor design floor, the floor area shall be included in the underground floor area. 3.1.4 permanent structure of the building space, with a permanent roof, structural floor height or sloping structural plate roof Kor in 2.20m and above, should be calculated in accordance with the following provisions of the floor area. 1 with enclosure structure, closed enclosed building space, shall be calculated by the horizontal projection area of the space enclosed by the outer surface of its outer enclosure structure. 2 no enclosure, enclosed by columns, or part of the enclosure and columns together, not enclosed building space, shall be calculated by the horizontal projection area of the space enclosed by its columns or the outer surface of the outer enclosure. 3 no enclosure, single row of columns or independent columns, not enclosed building space, should be calculated by 1/2 of the horizontal projection area of its roof. 4 no enclosure, with enclosure facilities, no column, attached to the building outside the enclosure, not enclosed building space, should be calculated by 1/2 of the horizontal projection area of the space enclosed by the outer surface of its enclosure facilities. 3.1.5 balcony building area shall be calculated by 1/2 of the horizontal projection area of the space enclosed by the outer surface of the enclosure; when the balcony is closed, it shall be calculated by the horizontal projection area of the space enclosed by the outer surface of its outer enclosure. 3.1.6 The following spaces and parts shall not calculate the floor area. 1 structural floor height or sloping structural slab top height of less than 2.20m building space. 2 building space without a roof. 3 attached to the building envelope on the components (accessories). 4 the lower space of the building's exorbitant part. 5 buildings used as public transport space for urban street access. 6 independent of the building of various types of structures. 3.1.7 functional space area should be calculated by the horizontal projection of the space enclosed by the internal surface of the functional space wall. 3.1.8 functional unit use area shall be calculated as the sum of the functional space use area within the functional unit. 3.1.9 The floor area of the functional unit shall be calculated as the sum of the use area of the functional unit, the horizontal projection area of the wall of the functional unit, and the area of the balcony within the functional unit. 3.2 Building height 3.2.1 The building height of flat roof shall be calculated according to the height of the outdoor design floor to the apex of the building's daughter wall, and the building without daughter wall shall be calculated according to the height to the apex of its roof gable. 3.2.2 The height of eaves and ridge of sloping roof buildings should be calculated separately. The height of eaves should be calculated according to the height from the outdoor design floor to the lowest point of the roof eaves or sloping roof, and the height of ridge should be calculated according to the height from the outdoor design floor to the ridge of the roof. 3.2.3 When the same building has a variety of roofing forms, or multiple outdoor design flooring, the building height should be calculated separately to take the maximum. 3.2.4 airports, radio and television, telecommunications, microwave communications, meteorological stations, satellite earth stations, military fortifications and other facilities within the control area of technical operations and airport route control of the building, the building height should be calculated by the outdoor design of the building floor to the highest point of the building (structure). 3.2.5 historical buildings, historical and cultural cities, towns and villages, historical and cultural districts, cultural relics protection units, scenic spots, nature reserves within the protection planning area of the building, the building height should be calculated by the outdoor design of the building floor to the highest point of the building (structure). 3.2.6 Article 3.2.4, Article 3.2.5 of this Code, the building outside the provisions of the roof equipment rooms and other local protruding roof rooms, the total area of not more than 1/4 of the roof area, should not be counted in the building height. 3.2.7 The indoor net height of the building should meet the minimum requirements of the net height of each type of functional space, basement, partial mezzanine, public walkways, building refuge areas, overhead floors and other places with normal human activities at the lowest indoor net height should not be less than 2.00m. 4 Building outdoor site 4.1 Environment and site 4.1.1 Civil buildings should be combined with the characteristics of the local natural environment, intensive use of resources, and strict control of its adverse impact on the ecological environment. 4.1.2 The air, soil and water bodies in the environment around the building should not pose a hazard to human health. The contaminated construction site should take effective measures for treatment, and should meet the soil environmental quality requirements of the construction site. 4.1.3 Building in the construction and use process, should take measures to control noise, vibration, glare and other pollution measures, the resulting waste, exhaust gas, wastewater and other pollutants should be properly disposed of. 4.1.4 The distance between the building and dangerous sources such as hazardous chemicals and flammable and explosive materials should meet the relevant safety regulations. 4.1.5 Building sites should meet the following requirements. 1 sites with the threat of flooding should take reliable measures to prevent flooding and waterlogging. 2 when the site elevation is lower than the municipal road elevation, there should be measures to prevent passenger water from entering the site 3 site design elevation should be higher than the highest perennial groundwater level. 4.1.6 The building base of densely populated public buildings shall comply with the following provisions. 1 building base entrances and exits should meet the requirements for the safe evacuation of personnel 2 building should be set up in front of the main entrance and exit of the personnel collection and dispersal site, its area and length and width size should be determined according to the nature of use and the number of people 3 building base set up within the green space, parking (space) or other structures, should not cause obstacles to the collection and dispersal of personnel. 4.2 Architectural control 4.2.1 Except for building connections, subway-related facilities and municipal facilities such as pipelines, ditches and corridors, buildings and their appurtenant facilities should not protrude from the red line of the road or the red line of the site. 4.2.2 Except for basements, underground garages outgoing entrances, and window wells, steps, ramps, canopies, eaves and other facilities, the main body of the building (structure) should not protrude from the building control line. 4.2.3 Riding towers, building connections, overhanging buildings along the road red line, etc., should not affect traffic, environmental protection and fire safety. 4.3 Base road 4.3.1 The road system in the building base should be smooth and convenient to ensure the safety of vehicular and pedestrian traffic, and should meet the requirements of fire rescue and barrier-free access. 4.3.2 Building base roads should be connected to external roads. 4.3.3 Building base motor vehicle garage entrances and entrances and connecting roads should be set up between the buffer section. 4.3.4 The location of the motor vehicle outgoing entrance of the building base shall conform to the following provisions. 1 should not be directly connected to the urban expressway. 2 The nearest edge of the entrance and exit of the surrounding primary and secondary schools and kindergartens shall not be less than 20.0m. 3 There should be a good line of sight, and there should be no obstacle within the sight distance to block the line of sight. 4.3.5 The setting of roads in the building base should comply with the following provisions. 1 base road and city road connection should be set up with speed limit facilities, the road should be able to access the main entrance and exit of the building. 2 when the motor vehicle road changes direction, the roadside greenery and buildings should meet the effective sight distance requirements for traffic. 4.3.6 motor vehicle roads within the building base shall comply with the following provisions. 1 single lane width should not be less than 3.0m, and not less than 4.0m when used also as a fire lane. 2 two-lane width should not be less than 6.0m. 3 end of the road length greater than 120m, should be set back to the site. 4.4 Site paving and water bodies 4.4.1 Site pavement, plaza and other hard pavement should ensure the safety of the passage of people, and the ground pavement surface should be non-slip. 4.4.2 Allowing vehicle traffic in the square, should meet the requirements of vehicle travel, parking and loading, and the ground paving surface should be smooth, non-slip, wear-resistant. 4.4.3 artificial water body shore nearly 2.0m range of water depth greater than 0.50m, should take safety measures. 4.5 Structures and facilities 4.5.1 underground garages, basements with polluting air vents should not face the openable exterior windows of neighboring buildings or take air vents; when the distance between the air vents and personnel activities is less than 10m, the height of the bottom of the air vents facing the personnel activities should not be less than 2.5m from the floor of the personnel activities. 4.5.2 When solar hot water or photovoltaic power generation system, HVAC, equipment, billboards, external shading facilities, decorative wire legs and other accessory components or facilities are set on the building, safety protection measures to prevent the components or facilities from falling should be taken, and should meet the building structure and other corresponding safety requirements. 4.5.3 The domestic garbage collection station room in the base shall comply with the following provisions. 1 Shall be equipped with water and sewage facilities, and the ground and walls shall be made of easy-to-clean materials. 2 shall meet the requirements of garbage classification and storage 3 A site shall be provided to meet the requirements of garbage truck loading and transportation. 5 General building space 5.1 Entrance and exit 5.1.1 Building entrances and exits shall be set according to the site conditions, building use function, traffic organization and safety evacuation requirements, and shall be safe, smooth and convenient. 5.1.2 Entrance, foyer and other personnel access parts using floor-to-ceiling glass, should use safety glass, and should set up anti-collision signs. 5.1.3 The building shall take measures to prevent outdoor rainwater from intruding into the interior at the entrance. 5.2 Steps and pedestrian ramps 5.2.1 When the total height of steps and pedestrian ramps reaches or exceeds 0.70m, protective measures shall be taken at the airside.

Contents of GB 55031-2022