Soil Dynamics and Earthquake Engineering最新文献

{"title":"A bivariable regression correction method for acceleration integration considering lossless time phases to evaluate the soil cyclic shear behavior in centrifuge tests","authors":"Tiqiang Wang ,&nbsp;Yongzhi Wang ,&nbsp;Chunhui Liu ,&nbsp;Qiangqiang Sun ,&nbsp;Lijun Deng ,&nbsp;Hai Wang ,&nbsp;Zhongling Qu ,&nbsp;Zhixian Chen","doi":"10.1016/j.soildyn.2025.109689","DOIUrl":"10.1016/j.soildyn.2025.109689","url":null,"abstract":"<div><div>Using integral displacements from acceleration records, the inversion analysis of soil cyclic shear behavior has been extensively employed in modeling tests and in-situ monitoring of site seismic response. However, there is a lack of attention to the reliability of correction methods for double-integral accelerograms to achieve displacements, especially the phase problem. This might be one of the prime reasons in data processing that lead to non-closure and discontinuity in the hysteresis loops, resulting in significant discreteness in the shear modulus and damping ratio. To address this problem, a novel correction method is proposed using a locally weighted regression function to correct both static parts and dynamic parts in the time domain while integrating acceleration records. The abundant records of paired accelerations and displacements have proved that the phase drift of integral displacements is visibly solved by the proposed method. Meanwhile, the method has high precision in integral amplitudes. The double-integral correction methods have a significant influence on the characteristics and shapes of the hysteresis loops, which is mainly manifested in the phase coordination of shear stress and shear strain. The proposed method can solve the problems of incomplete, discontinuous, and irregular hysteresis loops caused by data processing. The inverse analysis of the shear modulus and damping ratio by the proposed method is less dispersive, which is consistent with the established patterns of what is already known and the results of existing studies. The proposed method is of great theoretical importance and application value to improve the accuracy of the cyclic shear stress-strain response of soils.</div></div>","PeriodicalId":49502,"journal":{"name":"Soil Dynamics and Earthquake Engineering","volume":"199 ","pages":"Article 109689"},"PeriodicalIF":4.2,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144703802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Performance assessment of corroded buried pipelines under strike-slip faulting using stochastic wall loss modeling","authors":"Mitra Farhang,&nbsp;Himan Hojat Jalali","doi":"10.1016/j.soildyn.2025.109697","DOIUrl":"10.1016/j.soildyn.2025.109697","url":null,"abstract":"<div><div>Buried pipelines are crucial components of civil infrastructure and are essential for transporting content that is essential to human life. Among the numerous threats to buried pipelines, seismic activity poses a significant risk, particularly when pipelines are subjected to permanent ground deformation (PGD), such as faulting. A typical analysis of these pipes under PGD includes assuming an intact pipe without any defects or corrosion. In the current work, a corroded steel pipe crossing a strike-slip fault at right angle is analyzed using three-dimensional nonlinear finite element analysis, and the reduction in capacity for different failure modes is assessed. Different parameters such as corrosion level, diameter-to-thickness ratio, different soil types and steel pipe materials and internal pressure are considered in this study. A probabilistic approach is employed to simulate the inherent variability and uncertainty associated with corrosion along the entire length of the pipe. Furthermore, performance curves are plotted for various failure modes to understand the behavior of pipelines with different levels of corrosion under strike-slip faulting at right angle. The study reveals that corrosion significantly reduces fault displacement across all failure modes, with reductions exceeding 50 % at high corrosion levels. Among the failure modes, cross-sectional flattening tends to allow the highest displacement before failure, while local buckling consistently provides the most conservative limits, particularly in thinner-walled pipes. Additionally, comparisons between uniform and probabilistic corrosion models reveal that relying on uniform assumptions can substantially overestimate pipeline capacity, by as much as 48 %, highlighting the importance of accounting for spatial variability in corrosion patterns.</div></div>","PeriodicalId":49502,"journal":{"name":"Soil Dynamics and Earthquake Engineering","volume":"199 ","pages":"Article 109697"},"PeriodicalIF":4.2,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144703810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Seismic performance and vulnerability assessment of rockfill dams on liquefiable ground with gravel berms for liquefaction mitigation","authors":"Zhijian Qiu ,&nbsp;Yan-Guo Zhou ,&nbsp;Athul Prabhakaran ,&nbsp;Ahmed Ebeido","doi":"10.1016/j.soildyn.2025.109690","DOIUrl":"10.1016/j.soildyn.2025.109690","url":null,"abstract":"<div><div>Earthquake-induced soil liquefaction can lead to substantial damage to earth dams during extreme seismic events. Seismic vulnerability assessment provides a practical method for evaluating the earthquake safety of earth structures, offering valuable insights into the likelihood of exceeding predefined damage levels. As such, this study investigates the vulnerability of rockfill dams on liquefiable ground with gravel berms as a countermeasure against liquefaction-induced ground deformations. For that purpose, an advanced two-dimensional finite element (FE) computational framework is developed, with the modeling parameters of the liquefiable ground calibrated using a centrifuge model test. To enhance the reliability of probabilistic seismic demand model for the vulnerability analysis, an optimal ground motion intensity measure is appropriately identified. Subsequently, the effects of varying gravel berm lengths and vertical ground motions on the seismic fragility are systematically investigated. The results show that gravel berms reduce the probability of damage exceedance, particularly at severe damage levels. Additionally, vertical motions increase permanent settlement, further amplifying the probability of damage exceeding predefined damage levels. Overall, this FE analysis technique and derived insights are essential for assessing the seismic performance and vulnerability of equivalent rockfill dams on liquefiable ground, especially when considering gravel berms as a liquefaction mitigation countermeasure.</div></div>","PeriodicalId":49502,"journal":{"name":"Soil Dynamics and Earthquake Engineering","volume":"199 ","pages":"Article 109690"},"PeriodicalIF":4.2,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144703811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Heuristic-based multi-objective optimization design for viscous dampers in RC frame structures considering soil-structure interaction","authors":"Jinping Yang ,&nbsp;Tianhang Zhang ,&nbsp;Peizhen Li ,&nbsp;Tingting Cai","doi":"10.1016/j.soildyn.2025.109684","DOIUrl":"10.1016/j.soildyn.2025.109684","url":null,"abstract":"<div><div>In recent years, optimizing damper placement has become a critical focus in the design of energy dissipation and vibration reduction systems. Current designs frequently assume a fixed-base foundation, often overlooking the effects of Soil-Structure Interaction (SSI). However, the effects of SSI can significantly impact the passive control performance of structures. This paper presents an optimization design method for viscous dampers, incorporating the effects of SSI. First, a numerical model accounting for SSI effects was developed and validated using shaking table test results from a 12-story frame structure. Next, based on heuristic algorithms, four objective function pairs were constructed, and the Non-dominated Sorting Genetic Algorithm II (NSGA-II) and Multi-Objective Particle Swarm Optimization (MOPSO) were applied to the multi-objective optimization design of additional viscous dampers in a 12-story reinforced concrete frame structure. Finally, the multi-objective optimization method was applied to a high-rise cast-in-place RC frame structure, demonstrating the effectiveness and practicality of the damper optimization design method. The results indicate that, in heuristic algorithm optimization, NSGA-II demonstrates relatively stable performance across different conditions compared to MOPSO, with higher solution diversity, better distribution, and reduced sensitivity to objective functions. The correlation between damper positions and responses derived from the optimal solution set obtained through multi-objective optimization provides valuable insights for designers.</div></div>","PeriodicalId":49502,"journal":{"name":"Soil Dynamics and Earthquake Engineering","volume":"199 ","pages":"Article 109684"},"PeriodicalIF":4.2,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144695459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Seismic performance assessment of post-tensioned ultra-high performance concrete prefabricated retaining blocks based on OpenSees","authors":"Xin Ye ,&nbsp;Wenpeng Wu ,&nbsp;Lin Yang ,&nbsp;Weibin Wen","doi":"10.1016/j.soildyn.2025.109680","DOIUrl":"10.1016/j.soildyn.2025.109680","url":null,"abstract":"<div><div>The post-tensioned ultra-high performance concrete (UHPC) prefabricated retaining block (PRB) has been proven to be novelty in maintaining the restriction functionality as that of conventional normal concrete (NC) shear key (SK). However, developing a practical and effective mechanical model for the post-tensioned UHPC PRB remains challenging, especially in predicting its rotational response and failure modes under different level earthquake loads. These challenges limit its widespread application in bridge structures. Therefore, based on the OpenSees platform, this study developed a simplified mechanical model of the UHPC PRB and assessed its seismic performance while applying it to an example bridge. First, based on the design philosophy of the proposed UHPC PRB, as well as the observed phenomena and data in the model test, the detailed derivation process for the simplified theoretical model was presented. Then, the OpenSees models of the proposed UHPC PRB was developed to investigate its sensitivity to several significant design parameters. Meanwhile, the corresponding two-step seismic design methodology was suggested and verified based on the developed OpenSees model of the example bridge. The results show that, (i) the proposed theoretical model can effectively predicted the mechanical response of the UHPC PRB; (ii) initial tension forces (ITF) and number (<em>N</em>_<em>PT</em>) of prestressing tendons (PT), loading height (<em>H</em>_<em>F</em>), were critical factors affecting its mechanical properties, particularly the critical rotational load (CRL); (iii) prestress loss had a certain impact on the development of the simplified bilinear model for UHPC PRB, though this effect can be neglected in real highway bridge applications. This study established a comprehensive framework that includes the derivation of simplified mechanical models, OpenSees modeling to verify seismic performance and a two-step seismic design methodology. It advances the development of the proposed UHPC PRB structures and provides valuable insights for their innovation and application in bridge engineering.</div></div>","PeriodicalId":49502,"journal":{"name":"Soil Dynamics and Earthquake Engineering","volume":"199 ","pages":"Article 109680"},"PeriodicalIF":4.2,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144685900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hybrid deep learning framework for enhancing seismic response prediction of slope pile-anchor composite reinforcement system","authors":"Xi Xu ,&nbsp;Meng Wu ,&nbsp;Xiuli Du","doi":"10.1016/j.soildyn.2025.109663","DOIUrl":"10.1016/j.soildyn.2025.109663","url":null,"abstract":"<div><div>In earthquake-prone mountainous regions, pile-anchor composite structures have been applied to practical slope reinforcement projects. Enhancing the capability to precisely forecast the seismic dynamic response of these support systems is crucial for safeguarding the security of personnel and assets. This article introduces an innovative CNN-LSTM-attention model that can handle long sequences more flexibly and effectively capture and utilize critical information from the input data. This study generates a series of random seismic motions using the Spectral Representation-Random Function Method and conducts consecutive dynamic centrifuge shaking table tests to obtain seismic response data for pile top displacement and anchor tension. A noise filtering process based on Discrete Wavelet Transform (DWT) was implemented, coupled with a Moving-Steps approach for expanding the dynamic response database of pile-anchor composite structures. Superior performance in seismic dynamic response analysis of slope pile-anchor composite structures was achieved through a hybrid architecture combining convolutional neural networks (CNNs), long short-term memory (LSTM), and attention mechanisms. This model shows strong concordance with centrifuge test outcomes and enhances adaptability in learning the pattern of seismic wave and the response of slope pile-anchor composite reinforcement system.</div></div>","PeriodicalId":49502,"journal":{"name":"Soil Dynamics and Earthquake Engineering","volume":"199 ","pages":"Article 109663"},"PeriodicalIF":4.2,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144685898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An analytical solution for seismic response of pipe piles under vertical ground motion considering water-pile-soil interaction","authors":"Xinglei Cheng ,&nbsp;Yichen Liu ,&nbsp;Baoxin Wang ,&nbsp;Piguang Wang","doi":"10.1016/j.soildyn.2025.109686","DOIUrl":"10.1016/j.soildyn.2025.109686","url":null,"abstract":"<div><div>An analytical model is developed for an end-bearing pipe pile in a water-pipe pile-soil system subjected to vertical ground motion, where the kinematic response of the pipe pile is considered solely in terms of its vertical displacement. The system's response to ground motion is decomposed into two components: the free field and the scattered field. By incorporating the water-soil interaction in both the inner and outer domains, the response expressions for water and soil are derived. Subsequently, the displacement continuity and stress equilibrium within the inner and outer domains of the pipe pile, as well as at its various cross-sections, are thoroughly considered to derive an analytical solution for the overall system response. Finally, the sensitivity of the vertical dynamic response of the water-pipe pile-soil system to each parameter is analyzed.</div></div>","PeriodicalId":49502,"journal":{"name":"Soil Dynamics and Earthquake Engineering","volume":"199 ","pages":"Article 109686"},"PeriodicalIF":4.2,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144685899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Energy evolution and damage failure mechanism of coral sand grouted stone bodies under different stress paths","authors":"Zhangxiang Wang ,&nbsp;Lu Dong ,&nbsp;Xudong Chen ,&nbsp;Hongya Li ,&nbsp;Linjian Ma ,&nbsp;Liqun Duan","doi":"10.1016/j.soildyn.2025.109685","DOIUrl":"10.1016/j.soildyn.2025.109685","url":null,"abstract":"<div><div>In practical applications, coral sand grouted stone bodies (CSGSB) may undergo multiple cycles of loading. To investigate the failure mechanism of CSGSB under different loading paths, this study conducted triaxial compression tests under three different loading paths. Using a combination of supervised and unsupervised learning algorithms, a <em>K</em>means–SVM clustering model was developed. Acoustic emission (AE) non-destructive testing technique was employed to analyze the internal energy evolution and damage failure mechanisms of CSGSB. The results showed that increased loading path complexity led to lower peak strength and greater deformation at failure. Under stepwise cyclic loading, the specimens exhibited creep-like cumulative deformation characteristics. During cyclic loading, the energy density showed a distinct quadratic growth trend with increasing axial stress, accompanied by a linear energy storage behavior. Path-dependent differences in energy storage capacity were observed, with stepwise cyclic loading being less favorable for elastic energy accumulation. The AE signals demonstrated a clear Kaiser effect during cyclic loading, and clustering results from the <em>K</em>means–SVM algorithm indicated an increasing proportion of shear microcracks with higher cycle numbers and confining pressures. The evolution trends of the damage variable under different stress paths were generally consistent, while more complex paths led to reduced axial load-bearing capacity and increased internal damage. These findings enhance the understanding of the damage evolution mechanism of grouted coral sand materials, and provide a methodological and data-driven basis for disturbance response analysis and damage warning studies of grouted structures in island and reef engineering.</div></div>","PeriodicalId":49502,"journal":{"name":"Soil Dynamics and Earthquake Engineering","volume":"199 ","pages":"Article 109685"},"PeriodicalIF":4.2,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144680081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Seismic performance and fragility assessment of BRBFs subjected to sequential earthquakes","authors":"Tao Li ,&nbsp;Shijie Shu ,&nbsp;Kurtulus Atasever ,&nbsp;Kaoshan Dai ,&nbsp;Oguz C. Celik ,&nbsp;Jun Tang","doi":"10.1016/j.soildyn.2025.109672","DOIUrl":"10.1016/j.soildyn.2025.109672","url":null,"abstract":"<div><div>This paper evaluates the influence of sequential earthquakes on the fragility analysis of buckling-restrained braced frames (BRBFs). Sixty-three ground motions recorded during sequential earthquake events were selected and scaled based on intensity vectors to construct a comprehensive dataset for sequential ground motion analysis. This dataset was used as input for incremental dynamic analysis (IDA) of 4-, 8-, and 12-story prototypes. Low-cycle fatigue fracture of BRBs was considered in the numerical models for the prototypes. Seismic demand and capacity models were established based on the IDA results, and fragility surfaces for the prototypes were derived under sequential earthquake excitations. From these fragility functions, vulnerability index (<em>VI</em>) surfaces were developed, providing a direct quantification of structural damage. The study reveals that sequential earthquakes can significantly increase the cumulative plastic deformation (CPD) demands of BRBFs. The probability of BRB fracture increases with increasing aftershock intensity, particularly in higher-rise buildings due to a more discrete distribution of structural response. Additionally, when the aftershock intensity equals or exceeds the mainshock intensity, a significant increase in <em>VI</em> values is observed, particularly for lower BRBF structures. These findings highlight the importance of considering sequential earthquake effects in the seismic performance assessment and design of BRBFs.</div></div>","PeriodicalId":49502,"journal":{"name":"Soil Dynamics and Earthquake Engineering","volume":"199 ","pages":"Article 109672"},"PeriodicalIF":4.2,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144680082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Determination of optimal intensity measures by correlation analyses between earthquake parameters and damage indices for RC cooling towers","authors":"Mirtaha Hashemi ,&nbsp;Khosrow Bargi","doi":"10.1016/j.soildyn.2025.109670","DOIUrl":"10.1016/j.soildyn.2025.109670","url":null,"abstract":"","PeriodicalId":49502,"journal":{"name":"Soil Dynamics and Earthquake Engineering","volume":"199 ","pages":"Article 109670"},"PeriodicalIF":4.2,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144680195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}