All steel structure portal frame light building structure design

摘要

According to the whole steel structure portal frame light plant design requirements, its architectural plane design, plant height determination, the determination of axis positioning, building facade design, from the column selection, auxiliary component orientation, profile design, daylighting, ventilated, plant, heat preservation, heat insulation design and other aspects are discussed. This design is a whole steel structure portal frame light factory, workshop long 42 m, width 12 m, cargo lifting height 12 m. According to the main building heating and°C design, winter outdoor calculated temperature - 19°C, winter outdoor lowest temperature 30.4°C, the highest temperature of 38.4°C in summer. Average annual rainfall of 91.3 days, annual average precipitation 678.4 mm, a record, the biggest precipitation 100.8 mm, maximum precipitation 54.8 mm. Maximum wind speed of 25 m/s, the dominant wind direction: north, basic wind pressure 0.45 KN/m~2. The largest snow depth 210 mm, basic snow pressure 0.35 KN/m~2. The highest groundwater level - 9 m. Soil freezing depth - 1.50 m. Winter relative humidity is 55%, the summer relative humidity is 40%. Seismic intensity of 8 degrees. Shop fire rating for butyl III class level. The survey foundation bearing capacity is standard for 150 kpa, no bad foundation.