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Engineering Construction Standard Full-text Information System
National Standard of the People's Republic of China
GB50178—93
Standard of Climatic Regionalization for Architecture
Published on 1993-07-05
State Bureau of Technical Supervision
Ministry of Construction of the People's Republic of China
Engineering Construction Standard Full-text Information System
Implemented on 1994—02—01
Jointly Issued
Engineering Construction Standard Full-text Information System
National Standard of the People's Republic of China
Standard of Climatic Regionalization for Architecture
GB50178—93
Editor Department: Ministry of Construction of the People's Republic of ChinaApproval Department: Ministry of Construction of the People's Republic of ChinaImplementation Date: February 1, 1994
Engineering Construction Standards Full Text Information System
Engineering Construction Standards Full Text Information System
Notice on the Release of the National Standard "Building Climate Zoning Standard"
Jianbiao [1993] 462
According to the requirements of the State Planning Commission's Document No. Jizong (1986) 2630, the "Building Climate Zoning Standard" jointly formulated by the China Academy of Building Research and relevant units has been reviewed by relevant departments. The "Building Climate Zoning Standard" GB50178-93 is now approved as a mandatory national standard and will be implemented from February 1, 1994. The Ministry of Construction is responsible for the management of this standard, the China Academy of Building Research is responsible for the specific interpretation, and the Ministry of Construction's Standards and Norms Institute is responsible for organizing its publication and distribution. Ministry of Construction of the People's Republic of China
July 5, 1993
Engineering Construction Standards Full Text Information System
Engineering Construction Standards Full Text Information System
Chapter 1 General
Chapter 2 Building Climate Zoning
Section 1
General Provisions
Section 2 Zoning Indicators
Chapter 3 Building Climate Characteristics and Basic Building Requirements Section 1
I Building Climate Zone
Section 2
Section 3
Section 4
Section 5
Section 6
Section 7
Appendix 1
Appendix 2
Appendix 3
Appendix 4
I Building Climate Zone
II Building Climate Zone
V Building Climate Zone
V Building Climate Zone||t t||Vth building climate zone
Ith building climate zone
National climate element distribution map·
National major urban climate parameter table……
Terminology explanation·
Explanation of terms used in this standard·
Additional explanation·
Engineering construction standard full-text information system
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+Electric and Electrical
（1）)
（2）
（9）
（15)
（19）
Engineering construction standard full-text information system
Chapter 1
Article 1.0.1 This standard is formulated to distinguish the differences in the impact of climatic conditions on buildings in different regions of my country, clarify the basic requirements for buildings in each climate zone, provide building climate parameters, and generally make rational use of climate resources and prevent the adverse effects of climate on buildings.
Article 1.0.2 This standard applies to the planning, design and construction of general industrial and civil buildings.
Article 1.0.3 In the planning, design and construction of industrial and civil buildings, in addition to implementing the provisions of this standard, the provisions of relevant standards and specifications shall also be met. Engineering Construction Standard Full-text Information System
Engineering Construction Standard Full-text Information System
Chapter II
Architectural Climate Zoning
Section 1 General Provisions
Article 2.1.1 The zoning of architectural climate shall adopt the principle of combining comprehensive analysis with dominant factors.
Article 2.1.2
The zoning system of architectural climate is divided into two levels: primary zone and secondary zone: the primary zone is divided into 7 zones, the secondary zone is divided into 20 zones, and the division of the boundaries of each level shall comply with the provisions of Figure 2.1.2 (see the illustration at the end of the text). Article 2.1.3 The distribution of 21 climate elements commonly used in buildings, such as the average temperature in January and the average temperature in July, shall be adopted in accordance with the provisions of Appendix 1 to the National Climate Elements Distribution Map Attached Figures 1.1 to 1.21 of this standard.
Article 2.1.4 The building climate parameters shall be adopted in accordance with the provisions of Appendix 2 to this standard, Appendix Tables (I) to (IX) of the National Major Town Climate Parameters Table. Note: When the construction site is not much different from the topography and terrain of the meteorological stations listed in the tables of Appendix 2 of this standard, the horizontal distance is within 50km, and the altitude difference is within 100m, the building climate parameters listed in Appendix 2 of this standard can be directly quoted.
Section 2 Zoning Indicators
Article 2.2.1 The primary zoning indicators are the average temperature in January, the average temperature in July, and the average relative humidity in July; the annual precipitation, the number of days with an annual average daily temperature below or equal to 5°C, and the number of days with an annual average daily temperature above or equal to 25°C are auxiliary indicators. The zoning indicators of each primary zone shall comply with Table 2.2.1. Engineering 2 Construction Standard Full-text Information System
Engineering Construction Standard Full-text Information System
Main Indicators
Average temperature in January
≤-10℃
Average temperature in July
Average relative humidity in July
Average temperature in January
-10~0℃
Average temperature in July
18~28℃
Average temperature in January
0~10℃| |tt||Average temperature in July
25~30℃
Average temperature in January
>10℃
Average temperature in July
25~29℃
Average temperature in July
18~25℃
Average temperature in January
0~13℃
Average temperature in July
<18℃
Average temperature in January
0～-22℃| |tt||Engineering Construction Standard Full-text Information System
First-level zone zoning indicators
Auxiliary indicators
Annual precipitation 200~800mm
Number of days with annual average daily temperature <5℃
Number of days with annual average daily temperature ≥25℃
<80d
Number of days with annual average daily temperature <5℃
145~90d
Number of days with annual average daily temperature ≥25℃
4 0~110d
Number of days with daily average temperature <5℃90~0d
Number of days with daily average temperature ≥25℃
100~200d
Number of days with daily average temperature <5℃0~90d
Number of days with daily average temperature <5℃
90~285d
Administrative areas of each district
The whole territory of Heilongjiang and Jilin; Liaoning Province||t The central and northern Inner Mongolia and parts of Shaanxi, Shanxi, Hebei, and northern Beijing; the entire territory of Tianjin, Shandong, and Ningxia; most of Beijing, Hebei, Shanxi, and Shaanxi; southern Liaoning, central and eastern Gansu, and parts of Henan, Anhui, and northern Jiangsu; the entire territory of Shanghai, Zhejiang, Jiangxi, Hubei, and Hunan; most of Jiangsu, Anhui, Sichuan, and Shaanxi Western, southern Henan; eastern Guizhou; parts of northern Fujian, Guangdong, Guangxi and southern Gansu
All of Hainan and Taiwan: southern Fujian;
most of Guangdong, Guangxi and western Yunnan and riverless valley areas
most of Yunnan, Guizhou, southwestern Sichuan, a small part of southern Tibet
All of Qinghai; most of Xiwei; western Sichuan, southwestern Gansu; Parts of southern Xinjiang
Engineering Construction Standard Full-text Information System
Main Indicators
Average temperature in July
>18℃
Average temperature in January
-5～—20℃
Average relative humidity in July
Auxiliary Indicators
Annual precipitation 10~600mm
Number of days with annual average daily temperature ≥25℃
<120d|| tt||The number of days with annual average daily temperature ≤5℃ is 110~180d
Continued Table 2.2.1
Administrative scope of each district
Most of Xinjiang; northern Gansu; Inner Mongolia
Article 2.2.2 Within each first-level district, 2
select climate parameters or characteristics that can reflect the differences in the architectural climate
of the district as the second-level district zoning indicators. The zoning indicators of each second-level district shall comply with the provisions of Table 2.2.2.
Zoning indicators of the second zone
Average temperature in January
≤-28℃
—28~—22℃
-22~-16℃
-16~-10℃
Average temperature in July
>25℃
<25℃
Maximum wind speed
>25m/s
<25m/s
Maximum wind speed
>25m/s
<25m/s
Maximum wind speed
>25m/s
<25m/s
Average temperature in January Average temperature
≤5℃
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Permafrost
Oviropsis
Seasonal frozen soil
Seasonal frozen soil
Daily difference of average temperature in July
<10℃
≥10℃
Daily difference of average temperature in July
26~29℃
≥28℃
<28℃
Engineering construction standard full text information system
Average temperature in July
>1 0℃
<10℃
>10℃
January average temperature
≤-10℃
≤-10℃
>-10℃
Engineering Construction Standard Full Text Information System
January average temperature≤-1
≤-10℃
>-10℃
July average temperature daily difference
>25℃
<25℃
<25℃
>25℃
Continued Table 2.2. 2
Annual precipitation
<200mm
200~600mmbzxZ.net
50~200mm
10~200mm
Engineering Construction Standard Full-text Information System
Chapter III Building Climate Characteristics and Basic Building Requirements Section I I Building Climate Zone
Article 3.1.1 The winters in this area are long and cold, and the summers are short and cool; the west is relatively dry and the east is relatively humid, with a large annual temperature difference, a long freezing period, deep permafrost, and thick snow; the solar radiation is large and the sunshine is abundant; there are strong winds in the winter half of the year. The building climate characteristic values in this area should meet the following conditions:
1. The average temperature in January is -31~-10℃, and the average temperature in July is lower than 25℃; the annual temperature difference is 30~50℃, and the daily temperature difference is 10~16℃; the daily temperature difference is the largest from March to May, which can reach 25~30℃, and the extreme minimum temperature is generally lower than 35℃. Mohe once had a national minimum record of 52.3℃; the number of days with an annual daily average temperature lower than or equal to 5℃ is greater than 145d.
2. The annual average relative humidity is 50%~70%; the annual precipitation is 200~800mm, and the rainfall is mostly concentrated in June to August, and the annual rainy days are 60~160d. 3. The annual total solar radiation is 140-200W/m2, the annual sunshine hours are 2100-3100h, and the annual sunshine percentage is 50%-70%. It is higher from December to February of the following year, reaching 60%-70%.
4. From December to February of the following year, the western region is mostly northerly wind, the north and east are mostly northerly wind and westerly wind, and the central and southern regions are mostly southerly wind; from June to August, the eastern region is mostly easterly wind and northeasterly wind, and the rest of the region is mostly southerly wind; the annual average wind speed is 2-5m/s, the average wind speed from December to February of the following year is 1-5m/s, and the average wind speed is the highest from March to May, which is 3-6m/s. 5. The number of days with strong winds is generally 10 to 50 days per year; the number of days with snowfall is generally 5 to 60 days per year; in some areas of Changbai Mountain, it can reach 150 days; the number of days with snow accumulation is 40 to 160 days per year; the maximum snow depth is 10 to 50 cm, and in some areas of Changbai Mountain, it exceeds 60 cm; the number of days with frost is 2 to 40 days per year.
Article 3.1.2 The building climate characteristics of each secondary zone in this area that have a significant impact on buildings should meet the following conditions:
1. The winter in IA zone is more than 9 months long, the average temperature in January is lower than -28℃, there is a lot of snow, and the basic snow pressure is 0.5 to 0.7 kPa; this area is a permafrost area, and the maximum frozen soil depth is about 4.0 m.
II. The winter in Zone 1B is 8 to 9 months long, with an average temperature of -28 to -22°C in January; the number of ice days per year is 1 to 4 days; the number of sandstorm days per year is 1 to 5 days; the basic snow pressure is 0.30.7 kPa; this zone is an island frozen soil zone, with a maximum frozen soil depth of 2.0 to 4.0m. 3. The winter in zone 1c is 7-8 months long, with an average temperature of -22--16℃ in January; the summer is about 1 month long; the number of ice days per year is 3-5 days; the number of sandstorm days per year is about 5 days; the basic snow pressure value in the east is relatively high, at 0.3-0.7kPa: the maximum frozen soil depth is 1.5-2.5m.
4. The winter in zone 1D is 6-7 months long, with an average temperature of higher than -16℃ in January; the summer is 2 months long: the number of ice days per year is about 5 days, the number of sandstorm days per year in the west is 5-10 days; the maximum frozen soil depth is 1.0-2.0m.
Article 3.1.3 The basic requirements for buildings in this zone shall comply with the following provisions: 1. Buildings must fully meet the requirements of winter cold protection, heat preservation, and frost protection, and heat protection may not be considered in summer.
2. The overall planning, unit design and structural treatment should enable the buildings to meet the requirements of winter sunshine and protection from cold winds. Buildings should take energy-saving measures such as reducing exposed areas, strengthening winter airtightness, and rationally utilizing solar energy; the structure should consider the adverse effects of large annual temperature differences and strong winds, the roof structure should consider the hazards of snow accumulation and freeze-thaw, and the construction should consider the characteristics of long and cold winters, and take corresponding measures. 3. The impact of frozen soil on the foundations and underground pipelines of buildings in IA and IB areas should also be considered to prevent the hazards of frozen soil melting and collapse and frost heave. 4. In the western part of IB, IC and ID areas, buildings should pay attention to preventing ice buds and wind and sand.
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Section II I Building Climate Zone
Article 3.2.1 The winter in this area is long, cold and dry, the summer in the plain area is hot and humid, the summer in the plateau area is cool, the precipitation is relatively concentrated, the annual temperature difference is large, and the sunshine is abundant; the spring and autumn are short, and the temperature changes dramatically; there is little rain and snow in spring, and there are many strong winds and sandstorms, and there are many ice and thunderstorms in summer and autumn; the characteristic values of the building climate in this area should meet the following conditions:
1. The average temperature in January is -10-0℃, and the extreme minimum temperature is between -20-30℃; the average temperature in July is 18-28℃, and the extreme maximum temperature is 35-44℃: the extreme maximum temperature in the plains can mostly exceed 40℃, the annual temperature difference can reach 26-34℃, and the annual average temperature daily difference is 7-14℃; the number of days with annual daily average temperature lower than or equal to 5℃ is 14590d, and the number of days with annual daily average temperature higher than or equal to 25℃ is less than 80d; the number of days with annual maximum temperature higher than or equal to 35℃ can reach 10-20d.
, the annual average relative humidity is 50%-70%; the number of rainy days is 60-100d, the annual precipitation is 300-1000mm, the daily maximum precipitation is mostly 200-300mm, and the daily maximum precipitation in some places exceeds 500mm. 3. The annual total solar radiation is 150-190W/m2, the annual sunshine hours are 2000-2800h, and the annual sunshine percentage is 40%-60%. 4. In the vast eastern region, the wind is mostly northerly in February of the following year, and the wind is mostly southerly from June to August. The wind is mostly southwesterly in northern Shaanxi all year round: Shaanxi and central Gansu are mostly easterly all year round, with an annual average wind speed of 1-4m/s, and the average wind speed is the highest from March to May, which is 2-5m/s. 5. The number of days with strong winds is 5-25 days per year, reaching more than 50 days in some areas, and the number of days with sandstorms is 110 days per year, which is more in the northern region. The number of days with snowfall is generally less than 15 days per year, the number of days with snow accumulation is 10-40 days per year, the maximum snow depth is 10-30cm, and the maximum frozen soil depth is less than 1.2m; the number of days with ice is generally less than 5 days per year; the number of days with thunderstorms is 20-40 days per year. Article 3.2.2 The building climate characteristic values of each secondary zone in the area that have a significant impact on buildings should meet the following conditions:
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