Uniaxial hysteretic spring models for static and dynamic analyses of self-centering rocking shallow foundations

Lu, Yang; Xiong, Feng; Zhong, Jie

doi:10.1016/j.engstruct.2022.114995

Cited by 4 publications

(2 citation statements)

References 25 publications

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“…Introducing base isolation, also referred to as rocking isolation, helps mitigate peak shear forces and bending moments in the structural elements. However, it is important to acknowledge that this strategy may result in a notable settlement or residual tilt [26]. This could potentially cause irreversible damage to the entire soil-structure interaction system, even if the strains in structural components can be fully recovered (see Figure 1).…”

Section: Introductionmentioning

confidence: 99%

Modeling Techniques, Seismic Performance, and the Application of Rocking Shallow Foundations: A Review

Al-Janabi,

Al-Jeznawi,

Bernardo

2024

CivilEng

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The intriguing rocking behavior of foundations has attracted the attention of both researchers and professionals, owing to its beneficial characteristics such as energy absorption and self-adjusting capability. This paper offers a thorough examination of various modeling techniques, seismic performance evaluation methods, and the practical application of innovative rocking shallow foundations. While conventional fixed-base designs can absorb seismic energy, they often suffer from lasting damage due to residual deformation. In contrast, rocking foundation structures facilitate controlled rocking movements by loosening the connection between the structure and the foundation, thereby enhancing overall stability. Historical studies dating back to the 19th century demonstrate the effectiveness of rocking foundations in reducing seismic impact and ductility demands, leading to cost savings. Furthermore, this paper extends its focus to contemporary considerations, exploring modern modeling techniques, seismic performance assessments, and practical applications for rocking shallow foundations. By highlighting their role in improving structural resilience, this study investigates seismic hazard analysis, geological factors, and site-specific conditions influencing foundation behavior. It covers essential aspects such as dynamic responses and modeling methodologies, drawing insights from real-world case studies. Through a comprehensive review of both numerical and experimental investigations, the article provides a synthesis of current knowledge and identifies avenues for future research.

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Section: Introductionmentioning

confidence: 99%

Modeling Techniques, Seismic Performance, and the Application of Rocking Shallow Foundations: A Review

Al-Janabi,

Al-Jeznawi,

Bernardo

2024

CivilEng

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“…Examples of such systems are the out of plane motion of masonry structures, 12–21 the motion of unanchored equipment, 22–33 and the response of ancient Greco‐Roman and Chinese temples 34–38 . Moreover, allowing a structure to uplift and sustain rocking motion can be used as a seismic design method 39–64 and references therein], because the uplift works as a mechanical fuse and limits the design forces of both the superstructure and the foundation.…”

Section: Introductionmentioning

confidence: 99%

Effect of ground motion processing and filtering on the response of rocking structures

Elmorsy

Vassiliou

2023

Earthq Engng Struct Dyn

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With growing interest in rocking structures, it is important to quantify the effects of ground motion processing schemes on rocking response. To this end, this paper studied the influence of different ground motion correction schemes and parameter values on the rocking displacement spectrum. When the problem is treated on an individual ground motion basis, then it seems that ground motion correction does have an influence on the rocking response, especially for more slender blocks. This influence is larger for causal filtering. However, no specific trend related to the cut off period of the filter can be observed (at least for cut off periods longer than or equal to 10 s) or on the type of the recording device (analog or digital). On the other hand, when treating the problem statistically (by comparing the statistics of the response due to sets of ground motion, not a single ground motion), the effect is significantly reduced: The processing schemes do not induce any significant bias to the rocking response and the motion‐to‐motion variability seems more important than the ground motion correction method. This conclusion applies to both analog and digital records, both causal and acausal filters, and to all near field pulse like, near field no pulse like, and far field records.

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Study on screening process and segregation mechanism of wet sand and gravel particles based on discrete element method

Zhou,

Zhang,

Liu

et al. 2023

Granular Matter

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Uniaxial hysteretic spring models for static and dynamic analyses of self-centering rocking shallow foundations

Cited by 4 publications

References 25 publications

Modeling Techniques, Seismic Performance, and the Application of Rocking Shallow Foundations: A Review

Modeling Techniques, Seismic Performance, and the Application of Rocking Shallow Foundations: A Review

Effect of ground motion processing and filtering on the response of rocking structures

Study on screening process and segregation mechanism of wet sand and gravel particles based on discrete element method

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