Analysis on Contact Pressure Distribution and Design Model of Foundation Reinforcement

Abstract:

With an independent foundation reinforced applying section-enlarging plan as an example, the contact stress distributions between foundation and groundsill in 6 conditions were analyzed by finite element method and the pattern of stress distributions were discussed. Variable parameters include values of load on foundation and compression modulus ratio K of new and old foundation. The result showed the ratio of old foundation’s contact pressure to that of new foundation was about equal to the K. Based on the analysis results, consider the two times loading effect, the force diagrams of foundation strengthened were presented.

• Periodical: Advanced Materials Research (Volumes 368-373)
• Pages: 1402-1406
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.368-373.1402
• Online since: October 2011
• Authors: Er Jun Wu, Wei Jiang
• Keywords: Design, Finite Element Method (FEM), Foundation Reinforcement, Stress Distribution, Two Loading

References

[1] China Academy of Building Research. JGJ 123-2000. Technical Code for Improvement of Soil and Foundation of Existing Buildings. Beijing：China Architecture & Building Press, 2000 (in Chinese)

[2] H. F. Winterkorn. Hsai-Yang Fang. Foundation Engineering Handbook. 1975 Van Nostrand Reinhold Company. New York. Cincinati. Toronto. London. Melbourne.

[3] Liu Yuchuan, Zuo Guangzhou, Chen Fuquan. Numerical research on stress distribution of geo-synthetic reinforcement layer. Rock and Soil Mechanics, 2007,28(5):903-908(in Chinese)

[4] Mei Guoxiong, Mei Ling, Zai Jinmin.Finite Element Method for Designing of Cushion of Rigid Foundation Controlled by Stress Level. Building Science, 2009,25(1):42-46(in Chinese)

[5] Wu Nengsen, Xie Chengxin. Research on the cone penetration resistance of a spread foundation effected by nonlinear distribution of base stress. J. of NW Inst. of Arch. Eng. (Natural Science) 2002,19(3):21-25(in Chinese)

[6] Guo Zhongxian, Yang Zhihong. The research of the compaction effect of foundation soil about the existing buildings [J]. Geotechnical Engineering, 2000, (1)：47-50 (in Chinese)

[7] LI Qinrui, Yanjing Teng.The pilot study of the foundation when Transform the existing buildings. China Academy of Building Research. 2008 (in Chinese)

[8] Γ. A Konovalov. The foundation and basis for housing reconstruction. Beijing：Metallurgical Industry Press, 1986 (in Chinese)

[9] Li Wei et. ANSYS Civil Engineering Applications (Second Edition). Beijing：China Water Power Press, 2006 (in Chinese)