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Development of dynamic centrifuge models for measurement and visualization of deformation mechanisms in liquefiable soils Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-04-19 Caroline Bessette, Lianne Brito, Shideh Dashti, Abbie B. Liel, Brad P. Wham
Recent advancements in geotechnical physical modeling have enabled visualization and analysis of deformation mechanisms in soil sections through the integration of Particle Image Velocimetry (PIV) in dynamic centrifuge modeling. PIV requires a rigid wall container. In this paper, we summarize the design considerations that enable reliable measurement and visualization of soil deformation mechanisms
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Seismic response of pile-cap system installed in inclined soft clayey ground Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-04-18 Lei Zhang, Zhengling Hu, Panpan Zhang, Cheng Chen, Rui Rui
In order to investigate the seismic behavior of pile-cap system installed in inclined soft clayey ground, a series of 1-g shaking table model tests were conducted on a 2 × 2 pile-cap system installed in an inclined kaolin clay bed. The test results suggested that the inclined clayey ground could considerably amplify the seismic ground motions, especially at pile cap and slope top; the frontal piles
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Numerical investigation on the effect of repeated surface surcharge loading on soil deformation and tunnel displacement in structured soft clay Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-04-18 Wenbo Xie, Qi Zhang, Wenxuan Zhu
Shanghai soft clay is a typical marine clay with specific structural characteristics. The tunnel and overlying soft clay may undergo repeated surface surcharge loading, such as the temporary soil stacking. Assessing the extent of structured soft clay deformation and tunnel displacement caused by repeated surface surcharge loading is of great significance for evaluating of the safety of ground structures
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Dynamic mechanical response and particle breakage characteristics of calcareous sand Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-04-18 Dong-sheng Xu, Gang Shen, Qi-min Liu, Wen-bo Du
Calcareous sand is widely used as shallow foundations, where the mechanical behavior of calcareous sand under impact loading would be affected by the particle sizes and moisture contents in the foundation. Herein, a series of impact loading tests were carried out with a modified Split-Hopkinson Pressure Bar (SHPB) system to investigate the mechanical characteristics of calcareous sands subjected to
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Seismic response and fragility assessment of freestanding objects with random geometry Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-04-18 Spyridon Diamantopoulos, Michalis Fragiadakis
The seismic response of freestanding objects is a fundamental problem in earthquake engineering that is usually handled with the aid of the rocking block theory, i.e. assuming orthogonal objects. However, most objects have an oblique, asymmetric geometry that considerably differentiates their dynamic behaviour from that of symmetric orthogonal blocks. The asymmetry of an object is measured with the
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Soil amplification in the Santiago city, Chile, due to shallow crustal earthquakes Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-04-18 Fabián Ortiz, César Pastén, José Bustos, Sergio Ruiz, Rodrigo Astroza, Gabriel Easton
Three-dimensional physics-based numerical simulations (3D-PBS) of the seismic response of the Santiago Basin, Chile, were performed considering a large-scale velocity model and shallow crustal earthquake scenarios, associated with the west-verging thrust San Ramón Fault. Numerical results show that competent gravelly soils in the center of the basin respond with low seismic amplification and shorter
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Seismic responses of classical masonry columns and colonnades simulated with the combined finite-discrete element method Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-04-17 Xudong Chen, Peng Huang, Hongfan Wang, Andrew H.C. Chan
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Liquefaction in the presence of soil-structure interaction: Centrifuge tests of a sheet-pile quay wall in LEAP-2020 Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-04-15 E. Korre, M. Zeghal, T. Abdoun
The LEAP (Liquefaction Experiment and Analysis Project) is a continuing international collaboration to produce a reliable databank of high-quality experimental results for the validation of numerical tools. LEAP-2020, investigates the problem of a floating rigid sheet-pile quay wall embedded in dense sand layer. This paper discusses two experiments conducted at Rensselaer Polytechnic Institute (RPI)
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Stochastic inversion of soil dynamic parameters based on non-intrusive data Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-04-13 Yanmei Cao, Zhaoyang Li, Jialiang Chen, Chaoyi Xia
The prediction and evaluation of environmental vibrations generated by traffic loads have been playing more and more important role during the planning and designing of high-quality traffic system. From the traffic source to sensitive building, the subsoil is the one of key propagation media, so the determination of soil dynamic parameters is very crucial in studying the transmitting and attenuation
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Quantification of floor seismic response: Formulated PFA for non-classically damped structure and empirical PFV for elasto-plastic structure Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-04-13 Shi-Li Guo, Yang Xiang, Liusi Dai, Guo-Qiang Li
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Static and dynamic experimental validations of a frictional isolator with improved internal lateral impact behavior Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-04-13 Gaspar Auad, José L. Almazán, Nicolás Tapia, Diego Quizanga
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Influence of ground-motion duration on seismic performance of shallow-founded buildings in liquefiable soils: An effective stress analysis approach Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-04-12 Chih-Wei Lu, Minh-Tam Doan, Shi-Shuenn Chen, Yu-Feng Lin
In earthquake-resistant design, amplitude and frequency content of ground motions (GMs) have been considered using spectral matching techniques; however, duration effects remain insufficiently explored in designing buildings in liquefiable soils. This study investigates the influence of ground-motion duration on seismic response of shallow-founded buildings under strong earthquakes. Buildings in liquefiable
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Nonstationary elastoplastic response analysis of curved beam bridges under spatial variability of earthquake ground motion using absolute displacement method Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-04-11 Ting-Long Zhao, Xi-Mei Li, Yong-Feng Du
Current studies indicate that curved beam bridges are more sensitive to the spatial variability of earthquake ground motion (SVEGM) than straight bridges. However, research methods used currently typically disregard the nonlinear characteristics of bridges or use only deterministic excitations for analysis. Furthermore, the sensitivity of curved beam bridges with different curvature radii to the SVEGM
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Slip-line solution to seismic active earth pressure of narrow c-φ soils on gravity walls rotating about the bottom Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-04-11 Fu-quan Chen, Chang Chen, Wu-zhen Kang, Li Xu, Xi-bin Li
The adaptive finite element limit analysis (AFELA) method was employed to simulate the active failure mechanisms and plastic region distribution properties under complex backfill conditions to study the active earth pressure of backfill near a firm slope on gravity walls rotating about the bottom. The simulation results revealed that the backfill progressively fails from top to bottom and the backfill
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Probabilistic inelastic displacement demand estimation for SDOF self-centering viscous systems subjected to near-fault forward-directivity ground motions Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-04-10 Ruizhao Zhu, Tong Guo, Gang Xu, Ruijun Zhang, Solomon Tesfamariam
This study focuses on developing probabilistic inelastic displacement ratio demand spectra for single-degree-of-freedom (SDOF) self-centering viscous damper (SC-VD) systems subjected to near-fault forward-directivity ground motions. In addition, this study presents a procedure for calculating the mean annual frequency (MAF) of the maximum inelastic displacement demand exceeding a specific displacement
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Analytical 3D failure envelopes for RC pile groups under combined loading: A generalised design approach Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-04-10 L. Sakellariadis, I. Anastasopoulos
The paper presents a generalised design approach for pile groups subjected to combined () loading. The Limit Equilibrium method is extended to pile groups under general planar loading, considering the axial load dependency of bending stiffness and strength of reinforced concrete (RC) piles. 3D failure envelopes are analytically derived for different layouts. The key simplifying assumptions are critically
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Türkiye Mw 7.7 Pazarcık and Mw 7.6 Elbistan earthquakes of February 6th, 2023: Contribution of valley effects on damage pattern Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-04-09 Mourad Karray, Eyyub Karakan, Cem Kincal, Anna Chiaradonna, Tolga Oktay Gül, Giuseppe Lanzo, Paola Monaco, Alper Sezer
On February 6, 2023, southeastern Türkiye was shaken by two catastrophic earthquakes, close to northwestern Syrian border. The first earthquake (Pazarcık) occurred 45 km west of Gaziantep at 1:17:32 (UTC), with a shallow strike-slip faulting at a depth of approximately 8.6 km and a moment magnitude (M) of around 7.7. The second event (Elbistan) took place 9 h later, 66 km north-east of Kahramanmaraş
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Seismic resilience of RC bridge with self-centering energy dissipation braces using SMA U-shaped plates Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-04-09 Huihui Dong, Rui Ma, Qiang Han, Xiuli Du
The seismic resilience-based design of infrastructures is a current hot research topic, and such design is an extension of the performance-based design philosophy. The seismic resilient structures can quickly recover their full functionality by minor or no repair after earthquakes, which considers primarily the structural functionality after repairs and the cost required to restore its functionality
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Effect of dynamic soil-structure interaction modeling assumptions on the calculated seismic response of railway bridges with single-column piers resting on shallow foundations Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-04-09 Çağrı İmamoğlu, Murat Dicleli
In this study, the effect of dynamic soil-structure modelling assumptions on the calculated seismic response of railway bridges with single column piers resting on shallow foundations is investigated. For this purpose, 10 structural models of a typical railway bridge are built in decreasing levels of complexity, starting from the most complicated model with nonlinear elements to accurately simulate
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Investigation of radiative characteristics in the near field for shear, vertical and torsional vibroseis source Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-04-08 Zhiqiang Huang, Jun Shuai, Lei Hao, Gang Li, Ruohao Wang, Zhengtao You, Qiaomu Wang
In the realm of geological exploration, the selection of an appropriate seismic vibrator is critical, with the radiative characteristics being a key criterion. Each type of seismic vibrator possesses distinct radiative properties, posing challenges in selecting the most effective one for adequate subsurface data collection. To address this, the study adopts the elastic half-space theory to develop
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Conditional generation of artificial earthquake waveforms based on adversarial networks Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-04-06 Shieh-Kung Huang, Wei-Ting Chao, Yi-Xun Lin
Earthquake waveforms are necessary for simulation, verification, and validation during the development of structural and earthquake engineering. However, due to the fact that the processes of earthquake preparation and generation are extremely complex and the human observations cover a relatively short period compared to large earthquake cycles, recorded earthquake waveforms are often limited and quite
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Shaking table tests on deformation pattern and failure mechanism of fault-crossing tunnels in non-rupture scenario Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-04-06 Ruohan Li, Xu Zhao, Emilio Bilotta, Jinghua Zhang, Mi Zhao, Jingqi Huang, Yong Yuan
Tunnels, as critical underground infrastructures, often intersect with faults. Field investigations have underscored the susceptibility of fault-crossing tunnels to extensive damages during earthquakes. Hence, large-scale shaking table tests are conducted to investigate the deformation pattern and failure mechanism of fault-crossing tunnels under transverse excitation, particularly in non-rupture scenarios
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Test and prediction for the shear behavior of the sand–irregular concrete interface under constant and dynamic normal loading Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-04-06 Shixun Zhang, Feiyu Liu, Mengjie Ying, Weixiang Zeng
Pile foundations commonly withstand dynamic loading, which calls for a detailed analysis of cyclic shear properties at the pile–soil interface. This research entailed a sequence of direct shear tests on sand and concrete with irregular surface under both constant and dynamic normal loading, employing joint roughness coefficients () of 0.4, 5.8, 9.5, 12.8, and 16.7, and varying initial normal loading
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Assessment of adjacent foundations consequences and solutions for remediation via physical modeling Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-04-06 Hassan Moghadasi, Abolfazl Eslami, Davood Akbarimehr, Sajjad Asgari
In modern construction projects, a significant challenge arises from the consequential impacts of developing adjacent structures. The interplay of stresses within neighboring foundations can lead to a range of issues, such as deformation, leaning, cracking, instability, and various other damages. Among the numerous factors affecting foundation interaction, this research uniquely focuses on the impact
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Dynamic property growth of weathered granite soils stabilized with wood pellet fly ash based binders Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-04-05 Jebie Balagosa, Ivan Jeff Navea, Min Jy Lee, Yun Wook Choo, Ha-Seog Kim, Jin-Man Kim
This study investigates the influence of wood pellet fly ash (WA) and wood pellet fly ash-blended binders (WABB) on the dynamic growth of albite-based weathered granite soils (WS) over 28 days. Free-free resonant column (FFRC) and unconfined compressive tests (UCT) were conducted on the specimens after 3, 7, 14, and 28 days. The measured seismic waves, small strain deformation properties, and strength
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Damping ratio on lacustrine soils using the wavelet transform Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-04-05 Alfonso Fernández-Lavín, Efraín Ovando-Shelley, Claudia Chamorro-Zurita
Soil response analyses require that the soil strata involved be characterized in terms of their dynamic material properties. Two important material properties are the shear modulus and a measure of energy dissipation characteristics, usually expressed as the damping ratio. Both can be obtained from standard laboratory tests, most commonly resonant columns or cyclic triaxial devices which provide strain-dependent
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Dynamic behavior and characteristics of geogrid-reinforced sand under cyclic loading Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-04-02 Shuang Shu, Fei Zhang, Di Wang, Bin Ge, Yuanfeng Jiang
This paper evaluated the benefits of geogrid-reinforced sand samples and investigated the effect of different factors contributing to the dynamic behavior, which included the geogrid type, arrangement of reinforcement, confining pressure and dynamic stress amplitude. Four geogrids of different aperture geometries (two biaxial geogrids and two triaxial geogrids) produced by 3D printing technology were
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Thermo-seismic performance of the novel thermal anchor pipe frame (TAPF) structure for supporting slope in earthquake-prone permafrost regions Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-04-02 Xiaolei Wu, Jianhua Dong, Lu Wang, Pengfei He, Shilin Su
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Bidirectional performance assessment of UFREI-isolated structures with single and multiple tuned mass dampers under earthquakes and winds Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-04-01 Sarranya Banerjee, Taiki Saito, Vasant Matsagar
An innovative hybrid vibration controller (HVC) composed of unbonded fiber-reinforced elastomeric isolators (UFREIs) and tuned mass dampers (TMDs) is utilized for the vibration control of an existing hospital building under the multi-hazard scenario of earthquakes and (nonconcurrent) winds. A 3-dimensional nonlinear model of the considered hospital building is analyzed. Four configurations of the HVC
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Experimental assessment of the hysteretic response of resilient low-damage friction joints with different Belleville disk springs configurations Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-04-01 Antonella B. Francavilla, Massimo Latour, Gianvittorio Rizzano, Francesco Nigro, Vincenzo Piluso
Recent research works have emphasized the optimal response of Friction Joints (FJs) in seismic regions, particularly for Moment Resisting Frames, due to their energy dissipation capabilities with minimal damage. One of the main limitations of FJs is related to the capacity to effectively control clamping forces and their variation during a cyclic loading history. One solution to mitigate the loss of
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Stress-density model validation: Free-field liquefaction analysis Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-04-01 Majid Zakerinia, Connor P. Hayden, Christopher R. McGann, Liam M. Wotherspoon
Liquefaction has caused severe damage to buildings and infrastructure during numerous earthquakes, leading researchers to develop constitutive models that can capture complex soil behaviour in liquefaction-induced phenomena. Constitutive models require validation against laboratory or real-world data to assess their capability. This paper first discusses the recent implementation of the stress-density
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Seismic fragility assessment of the innovative and optimal box-shaped dampers in steel frame structures Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-03-30 Kian Aghani, Salar Farahmand-Tabar
Box-shaped dampers (BSDs) are newly introduced, innovative, and low-cost metallic dampers installed along the diagonal members of the frames. Dissipating the input energy by continuously forming plastic hinges, BSDs prove to possess the potential to serve as a fuse during earthquakes. Nonetheless, little literature exists on the seismic response of the BSD-equipped steel frames. Hence, this study aims
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Seismic behaviour of a steel moment resisting frame structure featuring hourglass double split tee joints Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-03-28 Sabatino Di Benedetto, Antonella Bianca Francavilla, Massimo Latour, Gianvittorio Rizzano
The occurrence of brittle fractures in welds of full-strength joints of steel moment-resisting frames (MRFs) during earthquakes in Northridge (1994) and Kobe (1995) marked a turning point in seismic design philosophies for steel structures. This led to the development of new strategies focusing on enhancing structural resilience and energy dissipation. While Reduced Beam Sections (RBS) were traditionally
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Efficient calculation method for dynamic behaviour and seismic performance of reciprocal structures based on condensed nodal coding system Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-03-28 Yong-Qiang Xia, Yi-Min Xu, Nan Xiao, Ke-Yi Ni, Bao-Ping Zou
This paper proposes an efficient method for calculating the dynamic behaviour and seismic performance of reciprocal structures by introducing the generalized displacements at the hinge point to describe the displacements of the nodes at the beam ends. The whole structural nodal coding system is condensed by replacing the two codes at the beam end nodes with code at the hinge point based on the traditional
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Experimental and numerical study of low-yield-point steel corrugated pipe dampers Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-03-27 Hu Li, Yongfeng Du, Jianping Han, Fangyu Li, Peihong Chi
The traditional isolation devices often encounter challenges such as uncontrolled deformation in the isolation layer, limited vertical tensile capacity, and environmental risks associated with the use of lead, a heavy metal. This study investigated an innovative low-yield-point steel damper called the corrugated pipe damper (CPD), which was introduced into a seismic isolation layer to overcome the
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The role of masonry infills on the interstory drift demand of reinforced concrete frames Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-03-27 Ali Etemadi, Can Balkaya
Most frame buildings, especially those with shear-type moment resistance frames, are affected by masonry infill panels, which change the mechanical properties of whole systems in a big way. In turn, seismic performance varies depending on the infill panel and frame interactions. In conventional structural design practice, such interaction has been overlooked. This study looks at the range of local
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Shaking table test for seismic performance of rock slope reinforced by C&S–R anchor cables Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-03-27 Xing Gao, Jinqing Jia, Xiaohua Bao, Guoxiong Mei, Lihua Zhang, Bingxiong Tu
To investigate the seismic reinforcement performance of compression and self-recovery (C&S–R) anchor cables, a series of shaking table comparison tests were conducted on rock slopes reinforced by two types of anchor cables: C&S–R anchor cables and conventional anchor cables, under different seismic intensities. During the tests, multiple accelerometers, displacement meters and strain gauges were synchronously
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Corrigendum to “Development, verification, and simulation analysis of variable friction self-centering energy dissipative brace” [Soil Dynam. Earthq. Eng. 179 (2024) 108537] Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-03-26 Lihua Zhu, Tong Liu, Zijie Li, Yao-Rong Dong, Jinwu Luo
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Prediction for underground seismic intensity measures using conditional generative adversarial networks Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-03-26 Shuqian Duan, Zebin Song, Jiaxu Shen, Jiecheng Xiong
With the escalating development and utilization of subterranean spaces, the seismic hazards faced by underground structures are progressively increasing. However, owing to the challenges associated with acquiring underground seismic data and historical seismic design norms, pertinent regulations and research in this domain are scarce. This study focused on three crucial intensity measures in the seismic
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Multi-objective seismic optimization and evaluation of core-damper-frame tall buildings considering SSI effect Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-03-26 Meng Wang, Yang Xiang, Fei-Fei Sun, Guo-Qiang Li
To control the seismic response of the core-frame (CF) structure and attenuate the stress level of the core tube, a novel core-damper-frame (CDF) system is proposed by decoupling the perimeter frame and the central core with flexible damper connectors. In this way, the large inertia force of the perimeter frame cannot be fully transmitted to the core, and the stress of the core is mitigated. In the
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Seismic performance of shared suction caisson anchors installed in liquefiable sand for floating offshore wind turbines Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-03-26 James Barron, Mohamed Rouainia, Tom Charlton, Stuart Edwards, Fraser Gibson
Shared anchors will reduce the levelized cost of energy for floating offshore wind (FOW) arrays currently under active development in various seismically active regions. This study investigates the seismic performance of a shared suction caisson anchor installed in liquefiable sand for a FOW array using a nonlinear dynamic 3D finite element analysis. The advanced UBC3D-PLM constitutive model was calibrated
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Design and in field validation of a modular metamaterial for mitigation of railway induced vibrations Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-03-26 F. Nistri, F. Bosia, A.S. Gliozzi, L. D’Alessandro, S. Caverni, P. Charkaluk, A. Corigliano, M. Miniaci, A. Colombi, N.M. Pugno
Metamaterials are artificial structures exhibiting wave control properties that can be exploited in civil engineering applications. Among them, locally resonant metamaterials are able to control and manipulate wave propagation at wavelengths several times larger than the unit cell size, and can therefore be useful for low-frequency vibration suppression. This paper presents the design, installation
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Practical considerations in liquefaction numerical simulations calibrated with historical data Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-03-25 Waleed El-Sekelly, Vicente Mercado
The paper details some practical considerations associated with the numerical simulation of liquefaction in Wildlife site in Southern California. Two material constitutive models are implemented in the simulations: a pressure-dependent multi-yield-surface model (PDMY) and PM4Sand, both available in the OpenSees finite elements platform. Both uniaxial as well as biaxial simulations are presented in
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The seismic resilience-based methodology of regional building function recovery assessment Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-03-25 Nan Wang, Baitao Sun, Hongfu Chen, Xiangzhao Chen, Hao Wang
Regional assessment of the functional recovery time of urban buildings is critical for decision-making after an earthquake, both as a key indicator of seismic disaster risk and for evaluating urban resilience. However, existing studies are insufficient for assessing the functional recovery time of buildings at the city scale. To address this issue, this study proposes a new methodology for predicting
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Energy dissipation in monotonic and cyclic simple shear tests considering initial static shear stress Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-03-25 Juntian Wang, Yunming Yang, Xiang Li, Enlong Liu, Hai-Sui Yu
Flow liquefaction and flow slide of soils are two fundamental concerns in current geotechnical engineering. Previous studies mainly focused on level ground conditions where soils were consolidated under isotropic or conditions. However, in geotechnical engineering, sloping conditions are more unfavorable for geostructure because of the inherent initial shear stress induced by the self-weight of slope
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LEAP centrifuge tests on retaining walls at Cambridge University Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-03-23 Xiaoyu Guan, Alessandro Fusco, Stuart Kenneth Haigh, Gopal Santana Phani Madabhushi
Retaining walls and other waterfront structures were seen to suffer severe damage due to soil liquefaction in previous earthquakes. As part of the LEAP project, cantilever retaining walls with loose, saturated backfill were tested at various centrifuge centres participating in this endeavour. The toe of the retaining wall penetrated about 0.5 m into the dense sand layer underlying the loose sand layer
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Seismic response of permafrost slopes supported by the thermal anchor pipe frame: Theoretical analysis and shaking table test verification Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-03-23 Xiaolei Wu, Jianhua Dong, Pengfei He, Lu Wang, Shilin Su
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Experimental investigation of dynamic behaviour of pile-supported bridges in sandy deposits Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-03-22 Zhixiao Yan, Yurun Li, Yongzhi Wang, Dongsheng Wang
This paper presents the results of centrifuge tests performed on reinforced concrete (RC) pile–supported simply supported girder bridge models in non-liquefiable (unsaturated) and liquefiable (saturated) slightly inclined sandy soil sites. The main objectives were to investigate the dynamic response characteristics of RC pile–supported simply supported girder bridges in non-liquefiable and liquefiable
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The formation mechanism of low-angle loess-mudstone seismic landslides Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-03-21 Da Peng, Jingshan Bo, Wenhao Qi, Chaoyu Chang, Xiaobo Li, Yushi Duan
Seismic-induced landslides represent intricate geological phenomena requiring a multidisciplinary investigative approach. This study examines the formation mechanisms of low-angle loess-mudstone landslides triggered by the 1920 Haiyuan M8.5 earthquake. We employ a synthesis of field investigations, high-density electrical resistivity tests, drilling, laboratory experiments, and numerical simulations
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A case study of foundation damping in a piled offshore wind jacket structure Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-03-21 Aaron S. Bradshaw, Maeve Story, Irina Perepelitsa, Christopher D.P. Baxter, Nasim Partovi-Mehr, Babak Moaveni, Eric M. Hines
This paper presents an assessment of foundation damping in piled offshore wind jacket structures through a case study of the Block Island Wind Farm (BIWF). Foundation damping is one of several sources of energy dissipation which can improve fatigue performance in offshore wind structures. Damping was quantified through operational model analysis (i.e. system identification) using structural health
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An analytical model for liquefaction-induced manhole uplifting Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-03-21 Chih-Wei Lu, Yu-Feng Lin, Wei-Lin Lee
Liquefaction-induced manhole uplifting typically occurs in urban areas. In some field surveys, the uplifting phenomenon may damage lifelines and obstruct the passage of rescue transportation. The mechanism of manhole uplifting has been proposed and developed to rapidly evaluate the extent of manhole uplifting using the limit equilibrium method. However, owing to the lack of an energy-dissipation process
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Dynamic response of piles embedded in granular soil to lateral impacts Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-03-20 Tewodros Y. Yosef, Chen Fang, Seunghee Kim, Ronald K. Faller
Soil-embedded vehicle barriers, such as W-beam guardrail systems, play a pivotal role in transportation safety, mitigating the risks associated with vehicular collisions with roadside hazards. The efficacy of these barriers greatly depends on the pile-soil system's kinetic energy dissipation capability during vehicular impacts. However, a comprehensive understanding of how soil strength, embedment
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Seismic fragility and vulnerability assessment of a multi-span irregular curved bridge under spatially varying ground motions Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-03-20 Sirui Song, Yazhou Xie, Yifan Wang, Wenyang Zhang, Asli Kurtulus, Nurdan Memisoglu Apaydin, Ertugrul Taciroglu
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Performance evaluation of parameters as estimators of seismic site effects in northern South America Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-03-20 Vicente Mercado, Fernando J. Díaz-Parra, Cesar A. Pajaro, Julián Montejo, Gustavo Posada, Mónica Arcila, Carlos A. Arteta
In this study, we investigate the performance of several parameters as estimators of seismic site effects for sites in northern South America. Investigated parameters include the conventional time-averaged shear wave velocity in the upper 30 (), the predominant period of the site, and horizontal-to-vertical spectral ratios. To assess the performance of these parameters, we estimate the amplification
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An approach for predicting surface strong motion using borehole seismometers Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-03-19 Hyejin Lee, Jae-Kwang Ahn, Byungmin Kim, Kwan-Hee Yun
South Korea has implemented borehole-type seismometers for reliable earthquake observations and earthquake early-warning systems, with approximately 85% of seismometers being replaced by borehole-type seismometers after the Gyeongju earthquake. Although these seismometers are more effective at detecting earthquakes owing to the reduced artificial ambient noise, they do not record surface-level shaking
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Development and assessment of sustainable steel-concrete composite beams with novel demountable shear connections Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-03-18 Liquan Xiong, Song Li, Kaiyu Jiang, Jian He, Fantao Kong
The design of sustainable steel-concrete composite beams (SSCCBs) with demountable shear connections (DSCs) for deconstructability can improve the problem of construction and demolition waste during these construction activities, and it also strengthens the sustainability of a building by allowing for easy dismantling and the reuse or recycling of structural components at the service load and easy
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Analytical determination of the dynamic response of layered saturated frozen foundation to moving loads under plane strain conditions Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-03-18 Huaiyuan Chen, Qiang Ma, Fengxi Zhou, Wenfang Wang
Based on the theory of solid porous media with pores, a calculation model of two-dimensional layered saturated frozen soil foundation is established. The study focuses on the dynamic response of layered saturated frozen soil medium placed on an impermeable rigid bedrock when subjected to a uniform surface moving strip load in motion. Firstly, the governing equation of saturated frozen soil is established
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Seismic design and performance evaluation of steel braced frames with post-tensioned and disc-spring-based self-centering buckling-restrained braces Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-03-16 Chaozhong Zhang, Xiaonong Guo, Jinhui Luo, Shaozhen Chen
In this study, we focus on two types of self-centering buckling-restrained braces (SC-BRBs), which are post-tensioned (PT) SC-BRB and disc-spring-based SC-BRB, and develop a seismic design method for steel braced frames with these braces according to the displacement-based design theory. The whole independent parameters that describe the hysteretic behavior of the SC-BRBs are first determined. Then
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Life-cycle performance enhancement of deteriorating buildings under recurrent seismic hazards Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-03-15 Ghazanfar Ali Anwar
Buildings are susceptible to reduced performance due to deterioration and recurrent extreme events. Hence, a life-cycle sustainability and resilience enhancement approach is proposed herein for reinforced concrete structures under environmental deterioration and recurrent extreme events. The framework consists of five parts: (1) extreme event modeling to characterize the occurrence uncertainty of the
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Discrete element study of the effect of particle shape on critical state characteristics and constitutive parameters of sand Soil Dyn. Earthq. Eng. (IF 4.0) Pub Date : 2024-03-15 Xiaoli Wang, Chengshun Xu, Xiaoling Zhang