Adaptability of a simplified analytic method for elastic base-board on soft foundations

作者：Zhu Shou Feng^*; Li Tong Chun; Deng Dong Sheng

来源：Journal of Hydraulic Engineering, 2011, 42(7): 857-861.

• Adaptation
• Analytic method
• Base plates
• Base-board
• Cut out
• Elastic base
• Mechanical parameters
• Plane strains
• Pump station
• Semi infinite space
• Soft foundation
• Space algorithms
• Stress and strain
• Structure analysis

A method that cut out a beam with unit width from a plate is usually applied to structure analysis of base plate of sluice and pump station on soft foundation. It should be pointed out that the stress and strain characteristics of this kind of plate obtained from this simplified analytic method can not be expressed entirely. In this paper a semi-analytic FEM is used to analyze the behavior of force-bearing and deformation of elastic base-board with different ratios of length to width and different elastic base modulus in semi-infinite space. The plane strain analysis under the same mechanical parameters is also carried out. The comparison shows that the maximum tensile stress obtained from the plane strain algorithm is 33% larger than that obtained from the space algorithm. The ratio is increased with the ratio of stiffness.

• 出版日期2011
• 单位河海大学