Bulletin of Earthquake Engineering最新文献

{"title":"The 2011 Great East Japan earthquake: fragility of Japanese buildings to ground shaking","authors":"I. Ioannou,&nbsp;S. Bertelli,&nbsp;R.E. Chandler,&nbsp;S. Ohno,&nbsp;A. Shibayama,&nbsp;A. Suppasri,&nbsp;T. Rossetto","doi":"10.1007/s10518-025-02174-1","DOIUrl":"10.1007/s10518-025-02174-1","url":null,"abstract":"<div><p>The quality of post-disaster data directly impacts the reliability of empirical fragility curves. Many seismic studies rely on estimated, rather than measured, ground motion intensity due to the limited number of recording stations. However, this study utilizes a unique database of over 7,817 buildings surveyed near 37 ground motion stations in the prefectures of Fukushima, Miyagi and Iwate Prefectures following the 2011 Great East Japan earthquake. This research examines damage data inland of the tsunami inundation zone, which has received little attention. A flexible Bayesian framework is employed to construct fragility curves, accounting for data overdispersion and uncertainty in the actual level of ground motion intensity experienced by the buildings. Despite large uncertainties, the results reveal that post-2000 buildings demonstrated superior seismic performance, while pre-1981 buildings were the most vulnerable. Contrary to observations from the 1995 Kobe earthquake, heavy steel frame buildings emerged as the most susceptible to damage, whereas wooden buildings performed similarly to reinforced concrete and light steel frame structures. Additionally, a sensitivity analysis indicates that the difference between the recorded ground motion intensity and the level actually experienced by the buildings surveyed in the station’s vicinity has a negligible impact on the fragility curves.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"23 8","pages":"3173 - 3201"},"PeriodicalIF":4.1,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10518-025-02174-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145142386","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":"Displacement-based seismic design and analysis of multi-story BRBs equipped in RC tall bridge bents with new hinged column links","authors":"Nailiang Xiang,&nbsp;Yang Feng,&nbsp;Xiaoxian Liu","doi":"10.1007/s10518-025-02177-y","DOIUrl":"10.1007/s10518-025-02177-y","url":null,"abstract":"<div><p>Utilizing buckling-restrained braces (BRBs) is a widely accepted approach for the seismic retrofit of double-column reinforced concrete (RC) bridge bents. However, for multi-story tall bents with concrete link beams, the seismic design of BRB parameters across multiple stories is more complex than initially anticipated. In many cases, time-consuming parametric analyses are required to determine the appropriate BRB parameters for these multi-story systems. This study introduces a novel bracing system for multi-story tall bridge bents, combining hinged links and diagonal BRBs. Based on a fundamental formulation for the new system, a direct displacement-based seismic design method is developed, enabling the efficient and straightforward determination of BRB parameters for specified seismic design objectives. A series of practical design steps is presented, demonstrated through design examples, and validated by nonlinear time-history analyses. The results show that the proposed design method is both feasible and efficient, providing a reliable means to determine the BRB parameters for the new bracing system. With these parameters, the desired seismic performance of the tall bridge bents under design earthquakes can be effectively achieved. Furthermore, the method enables accurate predictions of the seismic responses of the designed bracing systems.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"23 8","pages":"3375 - 3394"},"PeriodicalIF":4.1,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145145253","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 earthquake resistance of historical masonry inn with finite element analysis","authors":"Rüya Kılıç Demircan","doi":"10.1007/s10518-025-02169-y","DOIUrl":"10.1007/s10518-025-02169-y","url":null,"abstract":"<div><p>The protection of historic masonry structures against earthquakes is only possible by accurately assessing their non-linear behaviour, in particular their potential for severe damage and collapse. Experimental investigations on historic structures can be damaging, time consuming and costly. Therefore, in recent years, numerical modelling and analysis techniques have become common and reliable methods for determining the structural behaviour of historic structures. Turkey, which is located in a seismic zone, is home to many historical and cultural heritage sites. This study investigates the seismic performance of the historic Durak Han, located in the Durağan district of Sinop province due to its proximity to the North Anatolian Fault Line. The inn has been heavily damaged due to careless use and earthquakes and has been repaired many times. The seismic behaviour, force-displacement capacity and collapse mechanism of the stone vaulting have been investigated. A numerical simulation method had never been applied to the inn before. A comprehensive finite element model was constructed based on the architectural survey projects of the inn and this model was corrected using the experimental modal analysis results available in the literature. In order to determine the seismic behaviour and collapse mechanisms of the inn, nonlinear dynamic analyses were performed using the ground motion records of the 2023 Kahramanmaraş earthquakes. The maximum principal stresses, maximum displacements and damage distributions of the inn were evaluated.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"23 8","pages":"3269 - 3293"},"PeriodicalIF":4.1,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10518-025-02169-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144257","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":"Evaluation of seismic anchor systems in bridges: performance under multidirectional seismic loads","authors":"Esteban Amaya,&nbsp;Henrry Rojas-Asuero,&nbsp;Hernán Santa María","doi":"10.1007/s10518-025-02161-6","DOIUrl":"10.1007/s10518-025-02161-6","url":null,"abstract":"<div><p>This study evaluates the effectiveness of seismic anchor systems—namely, vertical seismic bars and pre-tensioned cables—in mitigating uplift and controlling displacements in bridges subjected to both horizontal and vertical seismic loads. Time-history analyses were conducted using detailed three-dimensional nonlinear models to assess the performance of different anchor configurations under various seismic scenarios. Seismic records were carefully selected to capture maximum demands in either the horizontal or vertical direction, with corresponding components applied to represent the seismic demands accurately. The analysis focuses on the role of prestressing levels in cable-based anchors, examining how they influence the reduction of uplift and control of horizontal displacements. Fragility curves were developed to quantify the probabilities of damage for different anchor configurations. The results demonstrate that both seismic bars and prestressed cables significantly reduce uplift at high-intensity levels, with prestressed cables at 50% of their yield strength offering the most effective solution. Increasing prestress levels beyond 50% yielded minimal additional improvement. Furthermore, vertical anchors enhance the connection between the bridge superstructure and substructure, reducing the probability of damage due to horizontal displacement, though they also increase the forces transmitted to the columns.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"23 8","pages":"3451 - 3481"},"PeriodicalIF":4.1,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144285","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":"Modified Mercalli intensity-based probabilistic seismic hazard assessment and zonation of India","authors":"Ravi Kanth Sriwastav,&nbsp;Narsiram Gurjar,&nbsp;STG Raghukanth","doi":"10.1007/s10518-025-02166-1","DOIUrl":"10.1007/s10518-025-02166-1","url":null,"abstract":"<div><p>The probabilistic seismic hazard assessment (PSHA) incorporates probabilistic elements such as earthquake source, magnitude, distance, and spectral distribution. The approach has been widely used for developing hazard maps and zone maps considering Peak ground acceleration (PGA) as the intensity measure (IM). Conversely in India, earthquake intensity, which is crucial for measuring seismic events without instruments, has been the primary input for seismic zone maps in the past without including probabilistic rigor. PSHA-based zonation using PGA often overlooks spatial damage distribution, while MMI-based zonation without probabilistic approaches fails to account for seismic variability, source characteristics, and site effects. To address these limitations, this study introduces an intensity-based PSHA framework for the Indian subcontinent. Leveraging historical and contemporary intensity data, it enhances hazard assessments by accounting for past damage distribution and spatial variations in the built environment, producing hazard maps that align more closely with observed seismic impacts. A region-specific Intensity Prediction Model (IPM) for Modified Mercalli Intensity (MMI) is first developed using an artificial neural network (ANN) trained on a comprehensive intensity dataset. The Indian subcontinent is classified into four tectonic domains while developing IPM: (i) Himalayan Active Crustal Region, (ii) Indo-Gangetic Basin, (iii) Stable Continental or Indian Shield Region, and (iv) Indo-Myanmar and Andaman-Nicobar Subduction region. Utilizing this IPM, hazard assessment is conducted employing a logic-tree approach to address epistemic uncertainties, generating MMI-based hazard curves and maps. Intensity-based seismic zone maps are created using the natural break algorithm. A comparative analysis evaluates the effectiveness of MMI-based seismic zoning versus traditional PGA-based methods, demonstrating its potential for more accurate hazard characterization in India’s diverse tectonic settings. The findings suggest that rather than considering PGA- and MMI-based PSHA approaches as competing methods, a rational integration of both can lead to an improved seismic hazard characterization. PGA-based maps remain essential for engineering design and structural performance assessment, whereas MMI-based maps provide critical insights into spatial damage patterns, particularly in regions where historical intensity records are available. By leveraging the strengths of both approaches, a more holistic and reliable seismic zonation map can be developed to better account for regional tectonic variability and real-world earthquake impacts.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"23 8","pages":"3057 - 3084"},"PeriodicalIF":4.1,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143726","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":"Research on seismic performance and improvement of Chinese rural self-built houses","authors":"Jianxiong Zhang,&nbsp;Dewen Liu,&nbsp;Rui Sun,&nbsp;Yong Ding,&nbsp;Yunlong Zhao,&nbsp;Jia Wang,&nbsp;Weiwei Sun","doi":"10.1007/s10518-025-02119-8","DOIUrl":"10.1007/s10518-025-02119-8","url":null,"abstract":"<div><p>This study focuses on the rural self-built house with a frame bottom floor and three masonry upper floors. This model is a prototype of traditional self-built houses still prevalent in Chinese rural areas, which pose a significant risk of damage during earthquakes due to the structural weaknesses of the first and second floors. Despite its vulnerability, many residents continue to construct such houses due to their comfort and convenience. By subjecting the structure to seven seismic records, we analyze the seismic responses of the first floor frame structure, first floor shear wall structure, first floor seismic isolation structure, and second floor seismic isolation structure. A comparative assessment of the seismic performance of these four structures under earthquake conditions is conducted. The study indicates that after an earthquake, the primary damage to the building structure occurs in the first floor and the top node. The first floor shear wall structure reduces seismic actions to some extent. The seismic isolation story effectively prolongs the structural period and prevents resonance with the site’s predominant period. When first floor seismic isolation structure is adopted, the acceleration, inter-story shear, inter-story drift and base shear response of the structure are reduced to 19.9%, 20.2%, 30.9%, and 26.0% of the first floor frame structure, and the effect is very significant. Second floor seismic isolation structure is more effective than first floor shear wall structure, and first floor seismic isolation structure surpasses both second floor seismic isolation structure and first floor shear wall structure. The use of first floor seismic isolation structure, second floor seismic isolation structure, and first floor shear wall structure enhances structural performance and effectively mitigates demand to reinforced concrete and masonry elements of traditional earthquake-resistant structures during seismic events.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"23 8","pages":"3327 - 3351"},"PeriodicalIF":4.1,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143381","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":"Post-repair seismic assessment of steel MRFs prone to soft-story mechanisms using rocking walls: cost-performance analysis","authors":"Esmaeil Mohammadi Dehcheshmeh,&nbsp;Milad Hooshyar Soltan Ahmadi,&nbsp;Vahid Broujerdian,&nbsp;Abouzar Jafari","doi":"10.1007/s10518-025-02159-0","DOIUrl":"10.1007/s10518-025-02159-0","url":null,"abstract":"<div><p>Coupling a rocking wall with a moment-resisting frame (MRF) is a viable and practical solution to mitigate the risk of soft-story mechanisms. However, little research has been conducted to investigate the retrofitted MRFs’ post-repair performance and the cost-performance of intervention. This research conducted a numerical parametric study to assess the cost-effectiveness of the retrofitting approach and shed light on the seismic performance of the retrofitted frames. To this end, three steel MRFs (i.e., three-, six-, and nine-floor height implicitly representing low- to mid-rise buildings) were considered, and pinned constraints were applied to the end of frames columns to induce the soft-story mechanism. Through coupling a base-rocking wall to the examined MRFs, thirteen different retrofitted scenarios were created considering different height and stiffness for the wall. Risk and performance assessment and seismic fragility analysis of the retrofitted scenarios were conducted by performing pushover and incremental dynamic analysis. The cost of retrofitting was estimated for each scenario, and a performance index was introduced to evaluate the efficiency of retrofitting intervention and, after that, to conduct a cost-performance analysis. The results showed that the retrofitting approach considerably decreases residual drift, especially in low-rise buildings. The best performance was achieved in low-rise buildings, and the retrofitting efficiency decreased by increasing the building’s height. Increasing the attached wall’s height has a stronger effect on reducing the retrofitted scenarios’ collapse probability. Besides, increasing the height of the attached wall has a more pronounced effect than stiffness in improving the safety and inter-story drift uniformity of retrofitted scenarios. In terms of performance, for low-rise buildings, employing a less stiff wall leads to a better result, although for mid-rise buildings, scenarios with longer and stiffer wall greatly outperform others. In terms of cost-effectiveness, using a shorter and less stiff wall outperforms other scenarios by a large margin.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"23 8","pages":"3203 - 3238"},"PeriodicalIF":4.1,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143660","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 microzonation in Bengkulu City, Indonesia: insights for resilient planning after 2000 Mw 7.9 and 2007 Mw 8.4 earthquakes","authors":"Refrizon,&nbsp;Darmawan Ikhlas Fadli,&nbsp;Erlan Sumanjaya,&nbsp;Ayu Maulidiyah,&nbsp;Meno Hardianza,&nbsp;Debi Hardiansyah","doi":"10.1007/s10518-025-02168-z","DOIUrl":"10.1007/s10518-025-02168-z","url":null,"abstract":"<div><p>Bengkulu city, located in the western part of Sumatra, is characterized by the prevalence of alluvial deposits. In certain areas, local site effects on soft alluvial sediments such as clay, sand, silt, mud, and gravel can amplify ground movements caused by significant seismic waves. Consequently, a comprehensive site effect study was conducted with closer measurement points to establish a more detailed seismic microzonation. In order to evaluate how the soil reacts to seismic activity, the HVSR method is performed to analyze the ambient soil noise within the study area. Field measurements reveal variations in the predominant frequency (ranging from 0.4 to 16.5 Hz), HVSR amplification (ranging from 0.3 to 12.3), and <i>K</i>_<i>g</i> distribution (ranging from 0.02 to 239.26), respectively. Furthermore, the PGA Kanai method was utilized to estimate soil shear strain (GSS) in the study area, using data from the 2000 Bengkulu-Enggano Earthquake (Mw 7.9) and the 2007 Bengkulu-Mentawai Earthquake (Mw 8.4). The analysis indicated a consistent distribution of <i>K</i>_<i>g</i> values with GSS and PGA values, alongside Modified Mercalli Intensity (MMI) values, exhibiting correlation coefficients greater than 0.9. This suggests that Bengkulu City faces a moderate to high vulnerability to severe damage from earthquakes. The closer examination of HVSR data at finer measurement points aids in identifying exposure to new hazards and contributes valuable insights for formulating regional planning policies centered on disaster risk reduction and enhancing existing strategies in Bengkulu City.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"23 8","pages":"3085 - 3107"},"PeriodicalIF":4.1,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143661","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":"Comparative analysis of intelligent retrofit design methods of RC frame structures using buckling-restrained braces","authors":"Sizhong Qin,&nbsp;Wenjie Liao,&nbsp;Zhuang Tan,&nbsp;Kongguo Hu,&nbsp;Yuan Gao,&nbsp;Xinzheng Lu","doi":"10.1007/s10518-025-02164-3","DOIUrl":"10.1007/s10518-025-02164-3","url":null,"abstract":"<div><p>The development of intelligent design methods for buckling-restrained brace (BRB) retrofit schemes can effectively enhance the seismic performance of reinforced concrete (RC) frame structures to address their insufficient seismic capacity. This study further explores the two-stage intelligent design framework for BRB retrofitting by combining generative artificial intelligence (AI) and optimization algorithms. In Stage 1, generative AI models, including diffusion models, generative adversarial networks (GANs), and graph neural networks, extract features from design drawings to identify potential BRB locations. In Stage 2, optimization algorithms, such as genetic algorithms, simulated annealing, and online learning, integrated with YJK Y-GAMA software, determine the optimal placement and sizing of the BRBs. A comprehensive comparative analysis of design performance and efficiency is conducted for different algorithm combinations in both stages. The results indicate that GANs and diffusion models effectively capture both global and local design features, and genetic algorithms provide an efficient exploration of the design space. Combining these methods yields near-optimal solutions in a short time, ensuring compliance with mechanical standards and cost-effectiveness. In conclusion, this study offers valuable recommendations for the selection of generative AI methods and optimization algorithms in the design process, with the potential to promote the application of intelligent design in engineering practice.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"23 8","pages":"3353 - 3374"},"PeriodicalIF":4.1,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143659","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":"The impact of 1D seismostratigraphical amplification effects on probabilistic seismic hazard maps at regional scale: the case of Tuscany (Central Italy)","authors":"D. Albarello,&nbsp;N. Carfagna,&nbsp;P.L. Fantozzi","doi":"10.1007/s10518-025-02167-0","DOIUrl":"10.1007/s10518-025-02167-0","url":null,"abstract":"<div><p>Seismic risk assessment at regional scale requires hazard estimates accounting for seismostratigraphical amplification effects. When detailed data related to the local subsoil configuration are lacking, these effects can be inferred from numerical simulations fed with information available on at regional scale. A key aspect concerns the implementation of these outcomes including relevant uncertainty into probabilistic seismic hazard estimates relative to standard subsoil conditions. A coherent approach is here proposed, which coherently accounts for the inherent probabilistic character of reference hazard estimates and of uncertain 1D seismostratographical amplification effects inferred from geological maps. The proposed approach has been applied in Central Italy relative PGA values corresponding to an exceedance probability of 10% in 50y. It is shown that accounting for uncertainty affecting amplification estimates is of main importance for correct implementation into PSHA. The outcome of this analysis is not expected to be considered for anti-seismic design of single structures, which requires detailed, and sound estimates of site effects at the proper scale. Anyway, these estimates may play a role for the preliminary identification of most critical situations along lifelines or outside inhabited areas where seismic microzonation studies are not available.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"23 8","pages":"3043 - 3055"},"PeriodicalIF":4.1,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10518-025-02167-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143142","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}