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Technical gazette, Vol. 27 No. 6, 2020.

Professional paper

https://doi.org/10.17559/TV-20190212032947

Structural Settlement Analysis and Pre-Reinforcement Research by Considering Structure Stiffness

Shaodong Yuan ; Qingdao University of Technology, School of Civil Engineering, Qingdao University of Technology, Qingdao266033, China
Guangming Yu ; Qingdao University of Technology, School of Civil Engineering, Qingdao University of Technology, Qingdao266033, China
Liang Li* orcid id orcid.org/0000-0001-8611-0873 ; Qingdao University of Technology, School of Civil Engineering, Qingdao University of Technology, Qingdao266033, China

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Abstract

The movement of the ground caused by the excavation of subway tunnels and the sinking of the earth's surface inevitably affect above-ground buildings, with the impact on historical and cultural buildings, which are already in disrepair, being more prominent. In existing research, the impact of the stiffness of a building itself is often neglected when assessing the influence of the displacement of the stratum caused by tunnel excavation on the building. However, as the settlement and deformation of the building are related to the structural characteristics of the building itself, the effect of the building stiffness should not be completely ignored. This study analyzed the case of the national key protected cultural relics (Red House Hotel) located near the tunnel of the Qingdao Metro (Line 3). Based on the factors affecting the stiffness of the building structure, the Peck empirical formula was modified to predict the effect on the building in the stratum. Subsequently, a three-dimensional finite element model was established and force analysis conducted. Considering the results of the finite element analysis, which determined the stress condition of the cultural relic buildings, a reinforcement design was carried out and implemented in the project.

Keywords

analysis; reinforcement design; stiffness of the building structure; tunnel excavation

Hrčak ID:

248260

URI

https://hrcak.srce.hr/248260

Publication date:

19.12.2020.

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