全國(guó)基本風(fēng)壓基本雪壓標(biāo)準(zhǔn)值

1、雪荷載的基準(zhǔn)壓力一般按當(dāng)?shù)乜諘缙教沟孛嫔戏e雪自重的觀測(cè)數(shù)據(jù)，經(jīng)概率統(tǒng)計(jì)得出50年一遇最大值確定。屋面水平投影面上的雪荷載標(biāo)準(zhǔn)值，應(yīng)按下式計(jì)算：Sk=μrxSo式中sk—雪荷載標(biāo)準(zhǔn)值(kN㎡)；μr—屋面積雪分布系數(shù)；S0—基本雪壓(kNm2)。全國(guó)各城市的雪壓和風(fēng)壓值全國(guó)各城市的50年一遇雪壓和風(fēng)壓附表D.4省市名城市名海拔高度(m)風(fēng)壓(kNm2)雪壓(kNm2)雪荷載準(zhǔn)永久值系數(shù)分區(qū)n=10n=50n=100n=10n=50n=10

2、0北京54.00.300.450.500.250.400.45Ⅱ天津天津市3.30.300.500.600.250.400.45Ⅱ塘沽3.20.400.550.600.200.350.40Ⅱ上海2.80.400.550.600.100.200.25Ⅲ重慶259.10.250.400.45河北石家莊市80.50.250.350.400.200.300.35Ⅱ蔚縣909.50.200.300.350.200.300.35Ⅱ邢臺(tái)市76.80.

3、200.300.350.250.350.40Ⅱ豐寧659.70.300.400.450.150.250.30Ⅱ圍場(chǎng)842.80.350.450.500.200.300.35Ⅱ張家口市724.20.350.550.600.150.250.30Ⅱ懷來(lái)536.80.250.350.400.150.200.25Ⅱ承德市377.20.300.400.450.200.300.35Ⅱ遵化54.90.300.400.450.250.400.50Ⅱ青龍2

4、27.20.250.300.350.250.400.45Ⅱ秦皇島市2.10.350.450.500.150.250.30Ⅱ滿(mǎn)洲里市661.70.500.650.700.200.300.35Ⅰ海拉爾市610.20.450.650.750.350.450.50Ⅰ鄂倫春小二溝286.10.300.400.450.350.500.55Ⅰ新巴爾虎右旗554.20.450.600.650.250.400.45Ⅰ新巴爾虎左旗阿木古郎642.00.40

5、0.550.600.250.350.40Ⅰ牙克石市博克圖739.70.400.550.600.350.550.65Ⅰ扎蘭屯市306.50.300.400.450.350.550.65Ⅰ科右翼前旗阿爾山1027.40.350.500.550.450.600.70Ⅰ科右翼前旗索倫501.80.450.550.600.250.350.40Ⅰ烏蘭浩特市274.70.400.550.600.200.300.35Ⅰ東烏珠穆沁旗838.70.350.

6、550.650.200.300.35Ⅰ額濟(jì)納旗940.500.400.600.700.050.100.15Ⅱ額濟(jì)納旗拐子湖960.00.450.550.600.050.100.10Ⅱ阿左旗巴彥毛道1328.10.400.550.600.050.100.15Ⅱ阿拉善右旗1510.10.450.550.600.050.100.10Ⅱ二連浩特市964.70.550.650.700.150.250.30Ⅱ那仁寶力格1181.60.400.550

7、.600.200.300.35Ⅰ達(dá)茂旗滿(mǎn)都拉1225.20.500.750.850.150.200.25Ⅱ阿巴嘎旗1126.10.350.500.550.250.350.40Ⅰ蘇尼特左旗1111.40.400.500.550.250.350.40Ⅰ烏拉特后旗海力素1509.60.450.500.550.100.150.20Ⅱ?yàn)趵刂衅旌Ａ鲌D1288.00.450.600.650.200.300.35Ⅱ百靈廟1376.60.500.750

8、.850.250.350.40Ⅱ四子王旗1490.10.400.600.700.300.450.55Ⅱ化德1482.70.450.750.850.150.250.30Ⅱ杭錦后旗陜壩1056.70.300.450.500.150.200.25Ⅱ包頭市1067.20.350.550.600.150.250.30Ⅱ集寧市1419.30.400.600.700.250.350.40Ⅱ阿拉善左旗吉蘭泰1031.80.350.500.550.50.