The Determination of Prestress for Reinforced Concrete Pipes Based on Elasticity
Based on elasticity, an elastic model was used to derivate the stress function and the stress expressions. According to the stress boundary condition and the geometry dimension of a cylindercross-section pipe, the constants are determined. First supposed the pipe were empty and the inner pressure were zero, the maximum prestress for the reinforced concrete pipe was determinate. Second, supposed the liquid pressure was the maximum, the model was used to determinate the minimum prestress. Combined the two critical conditions, the reasonable range of prestress for reinforced concrete pipe was got. In designing, the prestress must be consistent with it to prevent the concrete from crushing or bursting. At last, some differences between the theory result and the fact were pointed out to guide the application of the model.
reinforced concrete pipe prestress elasticity boundary condition symmetrical
HE Rong HE Wei ZHENG Hengxiang
North China Institute of Water Conservancy and Hydroelectric Power, Zhengzhou 450011, China
国际会议
2011 International Conference on Advanced Material Research(ICAMR 2011)(2011年先进材料研究国际会议)
重庆
英文
510-514
2011-01-21（万方平台首次上网日期，不代表论文的发表时间）