Yongguang Wang, Jian Zhang, Fang Liu, Yitao Huang, Weiguo Wu. “Experimental Study on Prestress Loss of Prestressed Concrete Beam under Alternating Loads”. Design Engineering (September 30, 2020): 748 - 761. Accessed May 4, 2024. http://thedesignengineering.com/index.php/DE/article/view/752.