Experimental study on shaking table tests of Dougong model of Tianwang hall, Luzhi

An innovative displacement-dependent metallic yielding damper designed to deform inelastically under in-plane flexural bending for seismic protection of building structures is proposed. The in-plane flexural damper that originated from a portal frame is modified by replacing the beam with a circular arch so that the effect of stress concentration can be minimized. Component tests of the in-plane dampers were conducted and compared with analytical results. Hysteresis of the component test indicates a consistent energy-dissipative characteristic of the damper. Moreover, seismic performance of the proposed damper via a series of shaking table tests was carried out. Excellent seismic performance of the proposed in-plane arched damper was observed. The acceleration responses in both peak and root-mean-squares of all floors are significantly reduced, and were greater in extent compared to the earthquake intensity increases.

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Experimental study on the shaking table tests of a modern inner-reinforced rammed earth structure

Construction and Building Materials ◽

10.1016/j.conbuildmat.2019.01.070 ◽

2019 ◽

Vol 203 ◽

pp. 567-578 ◽

Cited By ~ 3

Author(s):

Tiegang Zhou ◽

Bo Liu

Keyword(s):

Experimental Study ◽

Shaking Table ◽

Rammed Earth ◽

Earth Structure ◽

Shaking Table Tests

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Geotechnical Seismic Isolation System - Further Experimental Study

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.580-583.1490 ◽

2014 ◽

Vol 580-583 ◽

pp. 1490-1493 ◽

Cited By ~ 2

Author(s):

Wei Xiong ◽

Ming Ren Yan ◽

Yao Zhuang Li

Keyword(s):

Experimental Study ◽

Dynamic Response ◽

Parametric Study ◽

Seismic Isolation ◽

Shaking Table ◽

Shaking Table Tests ◽

Seismic Acceleration ◽

Isolation System ◽

Isolation Performance

The isolation effectiveness of the Geotechnical Seismic Isolation (GSI) system was further investigated via a series of prescribed shaking-table tests. The dynamic response of GSI system was also evaluated in detail of this work. A parametric study for assessment of the isolation performance of GSI was conducted by varying experimental key parameters, such as rubber percentage of rubber-sand mixtures (RSM), configuration of the foundation, storey number of the superstructure, and different kinds of seismic acceleration inputs. From the parametric survey, it can be concluded that the GSI system can to some extent attenuate the dynamic response of the superstructure under big earthquake shakings.

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Shaking table tests of a single-span freestanding rocking bridge for seismic resilience and isolation

Advances in Structural Engineering ◽

10.1177/1369433219859410 ◽

2019 ◽

Vol 22 (15) ◽

pp. 3222-3233

Author(s):

Xiu-Li Du ◽

Yu-Long Zhou ◽

Qiang Han ◽

Zhen-Lei Jia

Keyword(s):

Experimental Study ◽

Analytical Model ◽

Seismic Behavior ◽

Experimental Results ◽

Shaking Table ◽

Shaking Table Tests ◽

Peak Displacement ◽

Bridge Model ◽

Earthquake Resilience ◽

Seismic Resilience

Rocking philosophy has advantages to maintain a preferable post-earthquake serviceability as an alternative of seismic resistant systems. This article presents an experimental study on the seismic behavior of a rocking bridge with freestanding columns capped with a freely supported deck. A 1/10 scaled, single-span double-column freestanding bridge was constructed and tested on a shaking table. The experimental results showed that the bridge model could undergo large rocking with enough stability under earthquakes and presented excellent post-earthquake resilience after earthquakes with limited damage and negligible residual displacement. The rocking bridge model also exhibited expected isolation efficiency, which increases as the level of excitations becomes more severe. In addition, an analytical model based on multi-block rocking mechanisms was used to calculate the displacement response. Compared with the experimental results, this analytical model well predicts the peak displacement of the rocking bridge model.

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