SHAKING TABLE TEST STUDY OF SEISMIC BEHAVIOR ON COLUMN-SUPPORTED GROUP SILOS

XU Qikeng; WANG Lumin; DING Yonggang; LIU Qiang; LI Xuesen; LUO Qian

doi:10.13204/j.gyjzGYJZ201908010011

Volume 50 Issue 9

Nov. 2020

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XU Qikeng, WANG Lumin, DING Yonggang, LIU Qiang, LI Xuesen, LUO Qian. SHAKING TABLE TEST STUDY OF SEISMIC BEHAVIOR ON COLUMN-SUPPORTED GROUP SILOS[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(9): 75-82. doi: 10.13204/j.gyjzGYJZ201908010011

Citation:

XU Qikeng, WANG Lumin, DING Yonggang, LIU Qiang, LI Xuesen, LUO Qian. SHAKING TABLE TEST STUDY OF SEISMIC BEHAVIOR ON COLUMN-SUPPORTED GROUP SILOS[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(9): 75-82. doi: 10.13204/j.gyjzGYJZ201908010011

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SHAKING TABLE TEST STUDY OF SEISMIC BEHAVIOR ON COLUMN-SUPPORTED GROUP SILOS

doi: 10.13204/j.gyjzGYJZ201908010011

1. School of Civil Engineering, Hefei University of Technology, Hefei 230009, China;
2. School of Civi Engineering, Henan University of Technology, Zhengzhou 450001, China

Received Date: 2020-02-13
Publish Date: 2020-11-23

Abstract

Abstract

The paper presented an experimental study on the seismic behavior of reinforced concrete group silos with column-supported.A shaking table tests under three seismic waves were carried out on a 1×3 group silos model with a scale of 1∶25.The dynamic characteristics,acceleration and displacement responses of column-supported group silos were obtained in different earthquake levels under three storage conditions of empty, semi-storage and full silo.The seismic response and the variation regulation were analyzed under different conditions. The different seismic responses of single silos were revealed in different locations,and the base shear of single silos were acquired. The results indicated that the influence of stored material on dynamic characteristics of group silos was related to the stiffness discrepancy in different directions. The acceleration and displacement responses of single silos at different locations were significantly different, which was associated with the direction of seismic action and storage conditions. The single silo base shear forces at different locations were different.The base shear force at the end location was larger than that at the middle location in the X direction, while it was opposite in the Y direction,and the difference decreased with the increase of the stored material. It was suggested that each single silo in the group should carry out seismic checking calculation according to its position.
- group silos,
- stored material,
- shaking table test,
- dynamic characteristics,
- seismic response

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