[1]ZHAO Jie,LIU Dewen,YAO shunzhong,et al.Study on Response of Mid-storey Isolation Structure with SSI Effect Subjected to Three-dimensional Ground Motions[J].Journal of Seismological Research,2021,44(04):665-672.
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Study on Response of Mid-storey Isolation Structure with SSI Effect Subjected to Three-dimensional Ground Motions
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
44
Number of periods:
2021 04
Page number:
665-672
Column:
Public date:
2021-11-10
- Title:
- Study on Response of Mid-storey Isolation Structure with SSI Effect Subjected to Three-dimensional Ground Motions
- Keywords:
- three-dimensional ground motion; three-dimensional seismic isolation; SSI effect; mid-storey isolation structure
- CLC:
- TV352.1
- DOI:
- -
- Abstract:
- In order to investigate the seismic response of the mid-storey isolation structure subjected to three-dimensional ground motions when the soil-structure interaction(SSI effect)is taken into account,a mid-storey isolation structure model related with SSI effect was established.To compare the seismic response of the mid-storey isolation structure under different conditions,one-dimensional,two-dimensional and three-dimensional ground motions are input respectively.In order to solve the problem of excessive tensile and compressive stresses of isolation bearing when inputting three-dimensional ground motion,a three-dimensional isolation device is installed and the seismic response of the structure is compared with that of the traditional horizontal isolation structure.The results show that the seismic response of the structure subjected to three-dimensional ground motion is greater than that subjected to one-dimensional and two-dimensional ground motions; when the three-dimensional isolation bearing is installed,the vertical ground motion is effectively isolated,and the structural seismic response is reduced; the bearing force is optimized,and the problem of bearing tension and compression failure is solved; the soil stress of the foundation is less than the soil stress under the traditional horizontal isolation bearing,which is beneficial to the foundation and foundation design.
- References:
- -
- Similar References:
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Last Update:
2021-11-10