8 multi-storey buildings (1 #, 2 #, 3 #, 5 #, 8 #, 9 #, 10 #, 11 # buildings) are temporarily constructed in this project. In principle, the winter construction time is from November 15, 2011 to March 15, 2012. Winter construction starts when the outdoor daily average temperature is steadily lower than 5 ℃ for 5 consecutive days, and ends when the outdoor daily average temperature is steadily higher than 5 ℃ for 5 consecutive days.