Bulletin of Earthquake Engineering最新文献

{"title":"Seismic performances of geogrid-wrapped tire-faced retaining walls: influence of geogrid wrapping structures and binding properties","authors":"Bin Ma,&nbsp;Liyan Wang,&nbsp;Wengang Zhang,&nbsp;Xuanmin Ding,&nbsp;Wenwei Ji,&nbsp;Binghui Wang","doi":"10.1007/s10518-026-02572-z","DOIUrl":"10.1007/s10518-026-02572-z","url":null,"abstract":"<div><p>To promote the effective utilization of waste tires and facilitate the application of tire-faced retaining walls in high-intensity seismic regions, a geogrid-wrapped tire-faced retaining wall is proposed. Geogrid wrapping structures and binding properties between tires significantly influence the seismic performance of geogrid-wrapped tire-faced retaining walls. Through the shaking table test, the acceleration of the wall and backfill, the lateral wall displacement, the dynamic earth pressure and the strain of the geogrid are monitored. The influencing factors of geogrid-wrapping types, binding modes, wrapping thickness and strength of binding materials on the seismic performance of the geogrid-wrapped tire-faced retaining walls was analyzed. Test results show When the seismic intensity is low (a_max &lt; 0.3 g), the lateral displacement of the tire-faced retaining wall reinforced using a non-folded and fully-bound method is smaller than that of a geogrid-reinforced concrete panel retaining wall. The relationship between the average dynamic strain of geogrid and the corresponding local deformation of the same height of the wall was established, revealing the key control factors affecting seismic deformations, forming a displacement-based design method to meet the requirements of different seismic defenses, and the optimal seismic connection under different seismic intensities was proposed, which will provide scientific basis for engineering applications. This study provides a new structural form and a displacement-based design approach for geogrid-wrapped tire-faced retaining walls, contributing to both the seismic design of reinforced soil structures and the sustainable reuse of waste tires in geotechnical engineering.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"24 10","pages":"8187 - 8227"},"PeriodicalIF":4.2,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189990","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 retrofitting strategies for unreinforced masonry buildings in Europe: a review of techniques for improving seismic performance","authors":"Arash Rooshenas,&nbsp;Stefania Degli Abbati,&nbsp;Daniele Malomo,&nbsp;Sergio Lagomarsino","doi":"10.1007/s10518-026-02585-8","DOIUrl":"10.1007/s10518-026-02585-8","url":null,"abstract":"<div><p>Unreinforced masonry (URM) buildings were commonly constructed before the introduction of modern seismic design provisions; thus, they often exhibit inadequate detailing and poor seismic performance. As a significant portion of the existing building stock in many seismic regions consists of URM structures, improving their performance through appropriate retrofitting strategies remains a critical challenge for both researchers and practitioners. Over the past decades, numerous strengthening techniques have been proposed and experimentally validated. However, the available literature is widely dispersed across experimental studies, analytical investigations, and case-specific applications, hindering the development of a concise and up-to-date synthesis of current knowledge. On these premises, this paper presents a critical literature review of seismic retrofitting strategies for URM buildings, with a specific focus on historic constructions and European masonry typologies. The review examines techniques reported in 192 studies, that are then grouped into four main categories: (i) interventions to increase connections and guarantee a box-like behavior, (ii) interventions that enhance horizontal diaphragm stiffness, (iii) techniques that improve masonry quality and through-thickness integrity, and (iv) strategies involving the addition of new structural elements, including steel and timber bracing systems. A structured methodology was applied to guide this review, based on the definition of research objectives, inclusion and exclusion criteria, and a search and screening process supporting the selection of the final corpus of articles to examine in detail. The review highlights the mechanical principles governing the effectiveness of these interventions, discussing their advantages and limitations in terms of structural performance, feasibility, durability, and compatibility with heritage conservation requirements. By integrating findings from experimental investigations, numerical studies, and practical applications, this study aims to provide a framework for understanding current URM seismic retrofitting techniques and identifying key directions for future research and engineering practice.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"24 10","pages":"8993 - 9038"},"PeriodicalIF":4.2,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10518-026-02585-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A new method to extract strong velocity pulse in a pulse-like ground motion","authors":"Junhao Wang,&nbsp;Q. M. Li","doi":"10.1007/s10518-026-02583-w","DOIUrl":"10.1007/s10518-026-02583-w","url":null,"abstract":"<div><p>Ground motions occurred in the near-fault region may generate strong pulses in the velocity-time signals, imposing greater threats to structures. To accurately and effectively characterize these pulse-like ground motion (PGM) signals, a new method based on shock-waveform decomposition is introduced to quantitatively represent and extract the strong velocity pulse from a given ground motion signal. In this study, the proposed method is applied to 91 benchmark PGM signals selected from the PEER ground motion database and 26 PGM signals from 6 February 2023 <i>M</i>_w 7.8 Turkey earthquakes to demonstrate its potential to accurately locate pulse positions and provide accurate waveform representations of the identified pulses. The results show that the proposed method can effectively address common issues in the existing approaches, particularly the widely-adopted Wavelet-Transform-based methods. The pulse(s) in single-pulse and double-pulse PGM signals can be represented respectively by the first and the first and second decomposed signal component (s) obtained using the proposed method. The pulse period (<i>T</i>_P) can be directly determined by the frequency parameter of the decomposed component. The obtained <i>T</i>_P values are generally consistent with those derived from other established approaches.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"24 10","pages":"7989 - 8018"},"PeriodicalIF":4.2,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10518-026-02583-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Construction of relationships among acceleration, velocity and displacement response spectra using machine learning","authors":"Miao Hu,&nbsp;Yan-Gang Zhao,&nbsp;Haizhong Zhang","doi":"10.1007/s10518-026-02590-x","DOIUrl":"10.1007/s10518-026-02590-x","url":null,"abstract":"<div><p>The acceleration, velocity, and displacement response spectra are critical in the seismic design and dynamic analysis of structures. In many practical cases, only one type of spectrum is available to characterize the ground motion. To obtain the other required response spectra from the provided one, adopting relationships that map these spectra between one another offers a practical solution. However, although many models for such relationships have been proposed, their applicability and accuracy are limited due to the simplified regression techniques employed. To address these limitations, this study develops a set of models for estimating the relationships among these three response spectra based on machine learning that have been successfully applied across various fields. Specifically, the long short-term memory neural networks, one of the widely adopted algorithms in machine learning, are utilized to construct the predictive models, owing to their superior learning and information-selection capabilities. The Bayesian optimization algorithm is used for model hyper-parameters selection, as its effectiveness has been well-demonstrated even in complex optimization problems. A dataset of 16,660 horizontal seismic acceleration records is utilized, with magnitudes of 4.0–9.0 and epicentral distances of 10–200 km. The ground motion dataset was collected at 338 stations across four site classes. Finally, the proposed predictive models are systematically compared with existing models, and the results indicate that the proposed models provide improved accuracy and more stable performance.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"24 10","pages":"8019 - 8044"},"PeriodicalIF":4.2,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189549","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 design method of novel InorgBam beam-column bolted connections utilizing glued-in rods in the column","authors":"Shurong Li,&nbsp;Xin Zhang,&nbsp;Yepu Sheng","doi":"10.1007/s10518-026-02603-9","DOIUrl":"10.1007/s10518-026-02603-9","url":null,"abstract":"<div><p>A novel type of inorganic-bonded bamboo composite (<i>InorgBam</i>) beam-column bolted connections with glued-in rods in the column (where the slots and the bolt holes are filled with adhesive) was proposed. To examine its failure mechanism and seismic performance, six beam-column connections with varying bolt and rod diameters were tested under cyclic loading. Key seismic parameters, including failure modes, bearing capacity, initial rotational stiffness, and energy dissipation capacity, were analyzed and compared. Three failure modes were identified, including bamboo splitting and bolt yielding (EYM II) in the beam, glued-in rod fracture in the column, and combined failure. The initial stiffness of the new beam-to-column joint was relatively high, ranging from 3957 to 4480 kN·m·rad^− 1, consistent with semi-rigid connection behavior. Specimens with EYM II and splitting failure showed higher ductility, with ductility coefficients 1.20–1.74 times greater than those of rod-fracture specimens, although their energy dissipation capacity was slightly reduced. Overall, connections undergoing EYM Ⅱ and splitting failure exhibited superior seismic performance. Furthermore, a calculation formula for the moment resistance based on different failure modes was established, and a recommended design ratio of 1.2 for the bolted-adhesive bearing capacity to glued-in rod bearing capacity was proposed to prevent rod fracture in the column and improve seismic safety.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"24 10","pages":"9275 - 9296"},"PeriodicalIF":4.2,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189552","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":"Evaluation of PSHA logic trees considering the Pólya distribution to model the spatial correlation between observation sites","authors":"Luis Alvarez Sanchez,&nbsp;Anne Dutfoy,&nbsp;Emmanuel Viallet,&nbsp;Gloria Senfaute","doi":"10.1007/s10518-026-02577-8","DOIUrl":"10.1007/s10518-026-02577-8","url":null,"abstract":"<div><p>Probabilistic Seismic Hazard Analysis (PSHA) is the standard methodology for estimating the likelihood of exceeding ground-motion intensity thresholds at a given site, accounting for both aleatory and epistemic uncertainties, yet remains subject to criticism due to the high uncertainty and the limited observational data for validation. This study proposes a novel framework for the direct evaluation and Bayesian updating of PSHA logic-tree weights using observed ground-motion records, explicitly addressing spatial correlation among multiple observation sites. The methodology combines event-based simulations of branch-consistent ground-motion fields, site-effect corrections, and operational-period modeling to ensure comparability with empirical data. Correlated exceedance counts are modeled using the Pólya (negative binomial) distribution, which preserves the expected total number of exceedances of the classical Poisson reference while capturing the variance inflation induced by spatial dependence. At the same time, joint multi-IML updating employs a Bernstein copula to represent dependence across intensity measure levels. The framework is applied to a PSHA model for metropolitan France using a reference database spanning 1977–2020 and comprising EDF industrial sites and EPOS-France stations. Results confirm the adequacy of the Pólya distribution for correlated exceedance modeling, with spatial correlation observed consistently at monthly resolution. EDF sites provide nearly the same effective observation time as the full network due to their wide spatial distribution, while EPOS-France stations contribute limited additional statistical power due to site clustering. Bayesian updating of logic-tree branch weights improves model consistency, particularly when applied jointly across multiple IMLs. Results highlight systematic overestimation at low thresholds, and sensitivity analyses reveal that station operability uncertainties, while influential, cannot fully account for the discrepancy between predicted and observed exceedances. A fundamental contributing factor is that observations reflect a non-ergodic, site- and path-specific reality, whereas simulated fields are at best site-specific approximations—a mismatch inherent to current PSHA practice that sets an irreducible limit on model-data agreement. This correlation-aware, multi-IML evaluation framework enhances the statistical robustness of PSHA validation and provides a principled approach for data-informed logic-tree weighting, offering clear pathways for methodological refinement and regulatory application.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"24 10","pages":"8045 - 8076"},"PeriodicalIF":4.2,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189551","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":"Displacement response spectra based on 2DOF system for the isolated design of railway bridges","authors":"Sen Yang,&nbsp;Huihui Dong,&nbsp;Xiuli Du,&nbsp;Qiang Han","doi":"10.1007/s10518-026-02586-7","DOIUrl":"10.1007/s10518-026-02586-7","url":null,"abstract":"<div><p>The displacement response spectrum is a crucial step in the displacement-based seismic design method for bridge structures. However, for seismic isolation railway bridge structures, the traditional single-degree-of-freedom (SDOF) displacement response spectra cannot separately take into account the displacement requirements of the bridge piers and bearings. To address this limitation, this study develops displacement response spectra of the isolated design of railway bridges based on a simplified 2DOF system, categorized into elastic and inelastic versions according to specified design needs. These spectra comprise the peak displacement spectra of piers and bearings (i.e. PPDRS and PBDRS) and residual displacement spectra of bearings (i.e. RBDRS). The 2DOF analytical model and analysis procedure for 2DOF displacement response spectra are introduced. Subsequently, the influence of the key performance parameters of the structure on displacement response spectra is investigated, including the mass ratio (<i>r</i>), effective period of piers (<i>T</i>_p), effective isolated damping ratio (<i>ζ</i>_b), ductility ratio of bearings (<i>μ</i>_b), and post-yielding stiffness ratio of bearings (<i>α</i>). The results indicate that <i>r</i> and <i>T</i>_p exert a more pronounced influence on PPDRS, whereas the influence of <i>ζ</i>_b, <i>μ</i>_b, and <i>α</i> is more significant on PBDRS and RBDRS, with changes all exceeding 40% for key periods. Furthermore, the comparison of elastic and inelastic displacement response spectra is discussed. It shows that the displacements predicted by elastic and inelastic response spectra are with discrepancies within 25%. Accordingly, the conventional DDBD procedure is extended and refined, and an example is finally designed to validate the proposed design procedure.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"24 10","pages":"9351 - 9396"},"PeriodicalIF":4.2,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189643","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":"Region-specific ground-motion model for fourier amplitude spectra and its interfrequency correlation of epsilon for the Sichuan–Yunnan region, China","authors":"Zhengtao Wang,&nbsp;Jinjun Hu","doi":"10.1007/s10518-026-02593-8","DOIUrl":"10.1007/s10518-026-02593-8","url":null,"abstract":"<div><p>Fourier amplitude spectrum ground-motion models (FAS-GMMs) provide an alternative framework for characterizing ground motions in the frequency domain; however, regional FAS-GMMs for China remain limited despite the high seismicity of the region. This study develops a regional FAS-GMM for the horizontal effective amplitude spectrum (EAS) applicable to earthquakes with moment magnitudes 3.0 ≤ <i>M</i>_w ≤ 6.7 in the Sichuan–Yunnan region of Southwestern China using available strong-motion records. A functional form incorporating source, path, site, and focal-depth effects is calibrated over the frequency range of 0.23–30 Hz using a mixed-effects regression approach. Residuals are decomposed into between-event, between-site, and within-site components to assess model stability and uncertainty. Residuals show no systematic dependence on magnitude, distance, or site conditions. The model exhibits magnitude-dependent spectral scaling consistent with classical source-spectrum theory and captures key effects including the near-source saturation effect, distance attenuation, and linear site amplification. Compared with the FAS-GMM developed using the NGA-West2 strong-motion database, the proposed model predicts higher EAS amplitudes at intermediate to high frequencies for small-to-moderate earthquakes, consistent with previously reported relatively higher stress drops for small-to-moderate earthquakes in this region. Based on the proposed ground-motion model, a region-specific interfrequency correlation model is developed, resulting in improved agreement with empirical correlations, particularly at frequencies above 1 Hz. The proposed models provide a foundation for regional FAS-GMM development and FAS-based probabilistic seismic hazard analysis in Southwestern China.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"24 10","pages":"7959 - 7988"},"PeriodicalIF":4.2,"publicationDate":"2026-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189686","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":"Impact of soft-storey irregularity on the seismic safety of reinforced concrete buildings","authors":"Şeyhmus Tektaş,&nbsp;Gürkan Tam,&nbsp;Burak Yön","doi":"10.1007/s10518-026-02588-5","DOIUrl":"10.1007/s10518-026-02588-5","url":null,"abstract":"<div><p>This study evaluates the effect of soft-storey irregularity on the seismic fragility of reinforced concrete buildings by comparing fragility curves based on inter-storey drift and element damage. This comparison highlights the novelty of the study. For numerical analyses, a typical four-storey reinforced concrete building with a ground storey of 4.5 m and typical storeys of 3 m, having a current storey plan, was modeled as both a regular and soft-storey building. To model nonlinear behavior, the assumption of lumped plastic hinges at the ends of the structural elements was made. Static pushover analyses of the building models created in SeismoStruct 2022 were performed until the roof displacement reached 3% of the building height, while nonlinear incremental dynamic analyses were carried out using 11 real ground motion records obtained from AFAD. The records were scaled between 0.1 g and 1.0 g and applied in the x- and y-directions for both buildings, yielding a total of 440 dynamic analyses. Static pushover analyses generated capacity curves for both regular and soft-storey buildings. Incremental dynamic analyses revealed maximum responses, inter-storey drifts, damage distributions, and fragility curves for both regular and soft-storey buildings. Fragility curves were obtained using both HAZUS inter-storey drift limit values and TBEC 2018 section-based strain limits. The results showed that fragility curves generated based on inter-storey drifts yielded more sensitive results than those generated based on damage at the critical storey. Furthermore, it was determined that for an earthquake acceleration of 0.5 g, the probability of a soft-storey building collapsing was 30% higher than that of a regular building.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"24 10","pages":"8759 - 8789"},"PeriodicalIF":4.2,"publicationDate":"2026-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189684","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":"Study on the fragility assessment of existing reinforced concrete buildings considering ageing processes","authors":"Julia Eberl,&nbsp;Alexander Stark","doi":"10.1007/s10518-026-02591-w","DOIUrl":"10.1007/s10518-026-02591-w","url":null,"abstract":"<div><p>A common method for estimating building damage is the use of fragility functions. When developing fragility curves, it is essential to consider the specific characteristics, i.e. the age and changes over the lifetime, to ensure a reliable damage assessment. Existing buildings are more vulnerable to the effects of ageing due to their lower material strengths and concrete covers. This paper analyses the impact of corrosion and pre-damage on the fragility curves for existing buildings with a developed multiscale approach. Considering the consequences of corrosion, three effects are taken into account: reduction of reinforcement cross-section, reduction of steel ductility, and deterioration of concrete. For the pre-damage, a sequence of loading and unloading is simulated. The analysis focuses on a reinforced concrete building constructed in 1943, initially in its original state, with particular attention to its original material and reinforcement properties, and under the impact of corrosion attack after 80 years as well as pre-damage. A moderate corrosion attack can result in a 64% reduction in the overall shear base and an increase in fragility of up to 33% compared to a new building from 2023. The analysis of pre-damage has been demonstrated to result in a maximum increase of 18% in the probability of exceedance, contingent on the extent of pre-damage. The utilisation of fragility curves, developed for new buildings, results in a substantial underestimation of vulnerability when applied to existing structures.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"24 10","pages":"8791 - 8812"},"PeriodicalIF":4.2,"publicationDate":"2026-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10518-026-02591-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}