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Experimental and Numerical Study of Shallow Foundation Subjected to Vertical Dynamic Load
Foundation in case of industries and high-rise buildings where turbines, generators, and compressors are installed undergoes vibration. This paper presents the experimental and numerical study on an isolated square shallow foundation under vertical periodic machine vibrations. To excite the foundation with vertical dynamic loading, the eccentric mass shaker is utilized. The eccentric mass shaker essentially consists of two counter-rotating shafts capable of creating vertical periodic loading. A series of block vibration tests are conducted on a square-reinforced cement concrete of size 1 m × 1 m × 0.3 m on field site near western laboratory at IIT Kanpur campus. The shallow foundation is excited with vertical periodic loading of different magnitudes and frequencies. The responses are measured using sensors like accelerometers. The variation in the dynamic responses is recorded, and the same is plotted with varying eccentric force. The resonant amplitude, natural frequency of soil and damping ratio are plotted with frequency. Further, the experimental results are compared with the experimental findings earlier reported in the available literature for the IIT Kanpur campus soil. The numerical simulation of shallow foundation–soil system is done with built-in finite element package ABAQUS and compared to experimental amplitude values.
Experimental and Numerical Study of Shallow Foundation Subjected to Vertical Dynamic Load
Foundation in case of industries and high-rise buildings where turbines, generators, and compressors are installed undergoes vibration. This paper presents the experimental and numerical study on an isolated square shallow foundation under vertical periodic machine vibrations. To excite the foundation with vertical dynamic loading, the eccentric mass shaker is utilized. The eccentric mass shaker essentially consists of two counter-rotating shafts capable of creating vertical periodic loading. A series of block vibration tests are conducted on a square-reinforced cement concrete of size 1 m × 1 m × 0.3 m on field site near western laboratory at IIT Kanpur campus. The shallow foundation is excited with vertical periodic loading of different magnitudes and frequencies. The responses are measured using sensors like accelerometers. The variation in the dynamic responses is recorded, and the same is plotted with varying eccentric force. The resonant amplitude, natural frequency of soil and damping ratio are plotted with frequency. Further, the experimental results are compared with the experimental findings earlier reported in the available literature for the IIT Kanpur campus soil. The numerical simulation of shallow foundation–soil system is done with built-in finite element package ABAQUS and compared to experimental amplitude values.
Experimental and Numerical Study of Shallow Foundation Subjected to Vertical Dynamic Load
Lecture Notes in Civil Engineering
Sitharam, T. G. (editor) / Dinesh, S. V. (editor) / Jakka, Ravi (editor) / Das, N. K. (author) / Raychowdhury, P. (author) / Ray-Chaudhuri, S. (author)
2021-04-01
13 pages
Article/Chapter (Book)
Electronic Resource
English
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