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Ahmed Elgamal and Nissreen Elfaris
The tunnel boring method (TBM) is a widely used and effective tunneling technology in various rock mass quality circumstances. A ?faulted rock mass? can range from a highly fractured rock mass to a sheared weak rock mass, making the ground conditions cha...
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Longfei Zhang, Xiang Lan, Kechuan Wu and Wenzheng Yu
When subjected to seismic activity, tall isolated buildings with a high aspect ratio are susceptible to overturning as a result of the failure of rubber isolation bearings under tension. In order to address this issue, a guided-rail tension device (GR) h...
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Evangelos Sapountzakis, Georgios Florakis and Konstantinos Kapasakalis
This paper investigates the implementation of supplemental vibration control systems (VCS) in base isolated (BI) structures, to improve their dynamic performance. More specifically, the aim of the VCS is to reduce the base displacement demand of BI struc...
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Han Li, Shengze Tian and Xinzhi Dang
Unbonded steel-mesh-reinforced rubber bearings (USRBs) have been proposed as an alternative isolation bearing for small-to-medium-span highway bridges. It replaces the steel plate reinforcement of common unbonded laminated rubber bearings (ULNR) with spe...
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Ahmed Elgamal and Nissreen Elfaris
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Qiang Pei, Pengfei Qi, Zhicheng Xue, Jintu Zhong and Yao Zhang
The aim of this study was to further research the mechanical properties of epoxy thick-layer rubber isolation bearings, adopting orthogonal design and efficacy coefficient methods in order to optimize the geometric dimensions and material parameters of t...
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Laura Ragni, Fabio Micozzi, Laura Gioiella, Maria Gabriella Castellano, Samuele Infanti and Andrea Dall?Asta
The seismic response of base-isolated structures is notably influenced by mechanical properties of isolation devices due to their essential role in structural behavior. Consequently, the variability of such properties should be accounted for in the desig...
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Francesco Esposito, Mario Argenziano, Diana Faiella and Elena Mele
This paper reports a study on the Intermediate Isolation System (IIS) applied to existing buildings. This kind of application is particularly suitable when a vertical addition is planned for buildings in seismic zones; in such a case, an isolation system...
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Tae-Myung Shin and Byung-Chan Lee
The results can be applicable to the plant equipment design for seismic enhancement.
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Lucas Mazzon, Giada Frappa and Margherita Pauletta
A case study where a tuned mass damper (TMD) was installed at the top of a five-story reinforced concrete (RC) building is presented. The aim of the study was to investigate the effectiveness of the TMD in changing the structural behavior of medium-rise ...
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