Application of building envelope energy-saving design in public architecture

According to the construction of functional requirements and characteristics of local climate,taking Tiangong building of Xiaogan public building as an example,we reasonably determined the orientation,plane shape and appearance physique of the building,and selected the energy-saving building materials to the building envelope wall,roof and windows.The results show that the thermal parameter of enclosure structure meets the requirement of Design Standard for Energy Efficiency of Public(GB50189-2005),the indoor thermal environment of building is improved and the goal of reducing the total energy consumption 50% of the building is achieved.