Influence of Excess Pore-pressure on the Seismic Response of Single and Closely Adjacent Structures on Saturated Sand

Barrios, Gonzalo; Larkin, Tam; Chouw, Nawawi

doi:10.1080/13632469.2021.1991524

Cited by 3 publications

(2 citation statements)

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“…Figure 2 shows the laminar box and the tall bridge model on soil support. The laminar box was placed on the shake table, and the Waikato River sand was filled with an average density of 1580 kg/m 3 (Barrios et al, 2020 and 2022). The sand was compacted using white noise until no surface settlement was measured.…”

Section: Shake Table Experiments With a Large Laminar Boxmentioning

confidence: 99%

“…The result showed that the response of a stand-alone structure is not the same as the structure of focus with adjacent structures. In their subsequent studies, Barrios et al (2022) have conducted a series of shake table investigations on a cluster of rocking structures on saturated soil. The result showed that to ensure the integrity of structures, the overall performance of the soil-footing-structure system needs to be considered in design.…”

Section: Introductionmentioning

confidence: 99%

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Effect of pier height and support flexibility on seismic response of bridges including poundings

Yang

Meng

Chouw

2022

Advances in Structural Engineering

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In conventional seismic design, bridges usually are assumed to be fixed to a rigid support. This assumption, however, does not correspond to the reality of bridges with shallow footings since they can rock in strong earthquakes. It has been recognised that several factors significantly affect the response of bridges with rocking footings, including support flexibility, pier height and pounding. Most studies so far have mainly focused on a single factor. This research aims to narrow the knowledge gap by investigating the combined effect of pier height, support condition and earthquake characteristics on bridges with rocking ability. A series of shake table experiments on a single-frame bridge with different pier heights and support conditions under hard, medium and soft soil excitations were carried out. The influence of support flexibility was examined by comparing the response of rocking bridges on rigid support with that on soil support. The result shows that regardless of the flexibility of the support, in the case of no pounding, it is beneficial to take rocking footing into account because the maximum bending moment at the pier support can be reduced. However, when pounding was considered, the combined effect can generate an even larger maximum bending moment than that of the fixed-base bridge.

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Section: Shake Table Experiments With a Large Laminar Boxmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%