1. Architectural Institute of Japan. AIJ recommendations for loads on buildings. Tokyo: Architectural Institute of Japan(AIJ 2019); 2019.
2. American Society of Civil Engineers. Minimum design loads and associated criteria for buildings and other structures(ASCE/SEI 7-16). Reston: American Society of Civil Engineers; 2017.
3. National Research Council Canada. National building code of Canada(NBCC 2015). Ottawa: National Research Council of Canada; 2015.
4. Ministry of Housing and Urban-Rural Development of the People's Republic of China. Load code for the design of building structures(GB 50009-2012). Beijing: China Architecture & Building Press; 2012.
5. International Organization for Standardization. Bases for design of structures —Determination of snow loads on roofs(ISO 4355-2013). Switzerland: International Organization for Standardization; 2013.