Bulletin of Earthquake Engineering最新文献

{"title":"Machine learning-based parameter adaptation approach for modeling hysteretic axial-shear-flexure interaction in RC columns","authors":"Zi-Nan Wu,&nbsp;Xiao-Lei Han,&nbsp;Ahmed Y. Elghazouli","doi":"10.1007/s10518-026-02575-w","DOIUrl":"10.1007/s10518-026-02575-w","url":null,"abstract":"<div><p>Reinforced concrete (RC) members subjected to seismic loading experience variable axial forces and shear spans, which induce axial–shear–flexural interaction that governs their hysteretic behavior. Existing interaction models rely on complex constitutive assumptions such as smeared crack formulations, resulting in high computational demand and convergence difficulties, limiting their applicability for system-level assessments. To address these limitations, this study proposes a machine learning (ML)-based parameter adaptation approach that embeds ML surrogate models into lumped plasticity formulations with an adaptive updating mechanism. The suggested framework enables skeleton and hysteretic parameters to be dynamically updated during the analysis in response to variations in axial load, shear span, and cumulative damage, thereby capturing both cyclic degradation and axial–shear–flexure interaction. The approach is implemented for RC columns through the development of an adaptive hysteretic model. Ensemble neural networks, optimized via a complexity-aware grid search, are trained on a database of 286 cyclic tests with a balanced distribution of flexure-, flexure–shear-, and shear-critical specimens. These surrogate models are integrated into OpenSees through cross-platform coupling of Python-based ML routines and C++ numerical analysis to develop the adaptive model. Examination of adaptive features, coupled with experimental validations, confirm the accuracy of the proposed approach in capturing hysteretic axial–shear–flexural interaction under varying axial loads and shear spans, while achieving superior predictive performance and markedly reduced computational demand compared with existing interaction models. The results show that neglecting axial–shear–flexural interaction may significantly overestimate deformation and energy dissipation capacities. To this end, the proposed approach is shown to provide a reliable and efficient method for incorporating these effects into seismic resilience assessments.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"24 10","pages":"8845 - 8883"},"PeriodicalIF":4.2,"publicationDate":"2026-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10518-026-02575-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189295","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":"Investigation of soft story effect in RC structures using different strengthening methods","authors":"Burak Çakil,&nbsp;Muhammet Karaton,&nbsp;Ozan İnce,&nbsp;Kağan Çanakçi,&nbsp;Ömer Faruk Taş,&nbsp;Ömer Faruk Osmanli,&nbsp;Erkut Sayin","doi":"10.1007/s10518-026-02573-y","DOIUrl":"10.1007/s10518-026-02573-y","url":null,"abstract":"<div><p>Earthquakes are natural disasters that cause significant destruction and loss of life. One of the primary causes of these devastating effects is structural irregularities. Among these irregularities, soft-story irregularity is among the most critical, significantly reducing the seismic performance of structures. This usually occurs when the ground story is built higher than the other stories, which causes a sudden decrease in the rigidity of that story and an increase in lateral deformations. In this study, the effects of different strengthening techniques on the seismic behavior of reinforced concrete structures with soft-story irregularity were comparatively investigated. A regular structure model was used as a reference, alongside a soft-story model and four different retrofitting strategies: reinforced concrete jacketing, addition of shear walls, carbon fiber reinforced polymers (CFRP) wrapping, and integration of viscous dampers. The seismic performance of the models was evaluated using nonlinear time-history analyses and pushover analyses. There is a lack of comprehensive evaluations that compare multiple methods within the same structural model. For this reason, each strengthening method was comparatively assessed in terms of its contribution to stiffness enhancement, ductility improvement, displacement reduction, energy dissipation capacity, and architectural applicability in this study.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"24 10","pages":"8721 - 8758"},"PeriodicalIF":4.2,"publicationDate":"2026-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189296","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":"A model-driven method for predicting the global response of base-isolated structures based on local monitoring data from the isolation layer","authors":"Yi Zeng,&nbsp;Chubing Deng,&nbsp;Feng Xiong,&nbsp;Yifeng Liu,&nbsp;Hao Zhu","doi":"10.1007/s10518-026-02570-1","DOIUrl":"10.1007/s10518-026-02570-1","url":null,"abstract":"<div><p>Although base-isolated structures can effectively reduce the seismic response of the superstructure, accurately obtaining their global response after an earthquake is still necessary to support rapid damage assessment. Conventional structural response monitoring usually relies on dense sensor deployment across multiple floors, resulting in high instrumentation and maintenance costs. To address this issue, this study presents a method for accurately reconstructing the global response of base-isolated structures using local monitoring data from the isolation layer together with the ground-motion input. The proposed approach simplifies the base-isolated structure into a multi-degree-of-freedom (MDOF) shear model, incorporating bilinear constitutive laws for both the isolation layer and the superstructure. Next, Particle Swarm Optimization (PSO) is employed to refine the structural parameters based on monitoring data of the isolation layer. A sensitivity analysis is conducted to evaluate the influence of key parameters, providing a foundation for efficient parameter estimation. The effectiveness of the method is validated through numerical simulations, with results showing that the proposed method achieved average Pearson correlation coefficients of 0.95, 0.87, and 0.86 for the displacement, acceleration, and inter-story displacement time histories of each floor, respectively, in the case of a five-story structure. Additionally, robustness assessments reveal that while ground motions and rubber bearing types have a limited impact on accuracy, the number of stories and the choice of optimization function have a greater influence. The proposed method provides a practical framework for reconstructing the post-earthquake response of base-isolated structures under sparse sensing conditions.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"24 10","pages":"9479 - 9506"},"PeriodicalIF":4.2,"publicationDate":"2026-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189344","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-earthquake recovery of reinforced concrete buildings in India: hybrid framework and application","authors":"Dharmil Baldev,&nbsp;Mitesh Surana","doi":"10.1007/s10518-026-02560-3","DOIUrl":"10.1007/s10518-026-02560-3","url":null,"abstract":"<div><p>India, one of the world’s most seismically active regions, has endured losses from earthquakes, underscoring the need for robust earthquake risk management. Existing post-earthquake recovery frameworks estimate repair costs and downtime using region-specific vulnerability/fragility functions and often overlook the socioeconomic and impeding factors. This study introduces a novel, hybrid framework to assess the post-earthquake recovery of reinforced-concrete moment resisting frames in India. The study integrates existing strain-based seismic damage estimation at component and building scales and quantifies repair cost, downtime, and recovery trajectories. Repair cost and downtime estimates are drawn from consultations with structural repair engineers and impeding factors derived from historical earthquakes. The framework is demonstrated on four- and eight-story reinforced-concrete moment-resisting frames with varying configurations under multiple recovery constraints. The results show that, for four-story moment resisting frames, mean repair costs are 8%, 11%, and 16% of replacement cost for ‘minor’, ‘moderate’, and ‘severe’ damage states, respectively, which increase to 11%, 16%, and 24% for eight-story moment resisting frames. Downtime estimates based on single-worker allocation per floor under parallel and sequential repair strategies range from 1.45–1.77 years (‘minor’) to 1.99–2.78 years (‘severe’) for four-story archetypes, and from 1.70–3.56 years (‘minor’) to 2.46–6.75 years (‘severe’) for eight-story archetypes, incorporating delays from inspections, mobilization, administration, and approvals. The proposed framework guides policymakers and engineers to assess and optimize earthquake preparedness and resilience in India, considering structural and socioeconomic dimensions of recovery.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"24 10","pages":"8813 - 8844"},"PeriodicalIF":4.2,"publicationDate":"2026-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189398","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":"Static analysis of coupled shear walls with multiple stiffening beams incorporating local shear deformation: Double-Beam Systems Timoshenko","authors":"Mao Cristian Pinto-Cruz","doi":"10.1007/s10518-026-02576-9","DOIUrl":"10.1007/s10518-026-02576-9","url":null,"abstract":"<div><p>This paper presents closed-form solutions for the lateral displacement and interstory drift of coupled shear walls with an arbitrary number of stiffening beams of non-uniform properties and position, incorporating the local shear deformation of the walls through the Double-Beam Systems Timoshenko model. The barrier that had prevented previous solutions was strategic, not algebraic, given that the sixth-order differential equation admits an exact and orthogonal decomposition into three independent subsystems, pure bending (EBB), pure shear (SB), and bending-shear coupling (CTB), whose existence had not been recognized. From this decomposition, four results emerge that had not been previously established. First, <span>(n - 1)</span> stiffening beams act exclusively on the CTB subsystem, leaving EBB and SB strictly invariant, which reduces the algebraic system from <span>(4n)</span> equations to <span>(2n - 1)</span> without loss of accuracy. Second, local shear is absorbed into the shear component without disturbing the remaining ones, so that its incorporation does not introduce additional complexity; in contrast, the error of the classical sandwich beam model, structural and impossible to calibrate, reaches −75% for low slenderness. Third, the drift at the base is exactly invariant under any stiffening beam configuration, establishing an absolute lower bound that no stiffening strategy can surpass. Fourth, the displacement admits a physical decomposition into bending, shear, and interaction components, the latter being strictly negative and the only one upon which the stiffening beams act. The solutions cover uniform, triangular, and top-concentrated load profiles, and are extended to the fundamental period and global buckling critical load through an equivalent stiffness derived from the static solution. Validation against finite element models in SAP2000, for a slender 30-story coupled shear wall with ten non-uniform stiffening beams and for a low-slenderness wall with four stiffening beam configurations, yields errors below 5% at the base and below 1% over virtually the entire remaining height, on the conservative side, with errors below 3.6% and 5.4% for the fundamental period and the critical load, respectively. These results validate the proposed framework as a unified analytical platform for the static, dynamic, and stability analysis of coupled shear walls with multiple stiffening beams and incorporation of local shear deformation of the walls.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"24 10","pages":"8565 - 8604"},"PeriodicalIF":4.2,"publicationDate":"2026-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149188971","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":"Scale effects and seismic failure behavior of pile-group supported bridges subjected to liquefaction-induced lateral spreading","authors":"Kemin Jia,&nbsp;Chengshun Xu,&nbsp;Zhichao Lai,&nbsp;Junfeng Jia,&nbsp;Jia Song,&nbsp;Xiuli Du","doi":"10.1007/s10518-026-02564-z","DOIUrl":"10.1007/s10518-026-02564-z","url":null,"abstract":"<div><p>Although single-gravity shaking table experiments (1-g STE)) provide significant benefits for simulating the dynamic response of pile-soil systems in laterally spreading deposits, scale effects and nonlinear behavior limit the direct applicability of model results to prototype predictions. To address this, large-scale 1-g STE were conducted on bridge-pile-group systems in liquefiable sloped strata, complemented by the development of a nonlinear finite element (FE) computational framework. Four scaling-up factors (SUF) were applied to upscale the test model. Through the integration of experimental and numerical results, the reliability of 1-g tests in capturing seismic demands across various scales was evaluated, while also revealing the influence of an overlying crust layer. The findings indicate that the test results generally capture the seismic response trends in different SUF scenarios but tend to underestimate demands in scenarios with larger SUF. The pile top and the pile near the liquefiable layer bottom are identified as vulnerable zones under lateral spreading. Furthermore, the presence of an overlying crust layer significantly alters the damage mode, shifting the pile damage position from the base of the liquefiable layer to the pile head. Finally, based on extensive analyses considering ground motion uncertainty, SUF-seismic demand relationships were established, and extrapolation coefficients were proposed. These relationships provide a basis for rationally interpreting 1-g STE results for prototype predictions.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"24 10","pages":"9319 - 9349"},"PeriodicalIF":4.2,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189026","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":"Development of axial–moment interaction curves for flat and square-profiled cold-formed steel–concrete composite shear walls using experimental and numerical investigations","authors":"Uma Chandru,&nbsp;R. Senthilkumar","doi":"10.1007/s10518-026-02551-4","DOIUrl":"10.1007/s10518-026-02551-4","url":null,"abstract":"<div><p>Steel-concrete composite shear walls offer a promising alternative to conventional reinforced concrete shear walls for resisting lateral forces in structures. This study investigates the performance of slender composite shear walls comprising cold-formed steel faceplates on either side of a concrete core, connected through shear connectors to ensure composite action. Two faceplate geometries, namely the Flat and novel Square profiles, were examined through experimental testing under in-plane monotonic lateral loading and combined axial and lateral loading. Complementary finite element analyses were conducted and validated against the experimental results to accurately capture the structural response. Furthermore, Axial-Moment interaction curves were developed for both wall configurations, demonstrating the beneficial effects of axial load on flexural performance due to concrete confinement. A newly developed consolidated interaction curve is proposed to facilitate the practical design of flat and square-profiled cold-formed steel-concrete composite shear walls. It was observed that the application of axial loads equivalent to 20% and 30% of the ultimate axial capacity led to a moment capacity enhancement of 22% and 37% for the flat and square-profiled walls, respectively. The flat composite wall specimen demonstrated superior performance under axial load-dominated conditions, whereas the square-profiled composite specimen exhibited enhanced capacity in moment-dominated loading scenarios.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"24 10","pages":"9233 - 9273"},"PeriodicalIF":4.2,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189029","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 and design of high-speed railway bridges using quantitative catastrophe representation models","authors":"Jian Yu,&nbsp;Biao Wei,&nbsp;Yulin Feng,&nbsp;Zhipeng Lai,&nbsp;Lizhong Jiang,&nbsp;Xianhao Nie,&nbsp;Wangbao Zhou","doi":"10.1007/s10518-026-02571-0","DOIUrl":"10.1007/s10518-026-02571-0","url":null,"abstract":"<div><p>A prerequisite for defining post-earthquake speed is to develop a representation framework for seismic track vertical irregularities that incorporates both seismic and structural uncertainties. This study examines the mechanism of damage progression and deterioration of track irregularity under longitudinal seismic action. Target seismic track vertical irregularities are generated, and serve as an intermediate link to formulate a damage evolution representation for the bridge-track-train system. Evaluation and design procedures are developed for assessing post-seismic train running performance on bridge. Findings reveal that the rails integrate the longitudinal motions of the girder and the piers into a coherent whole. Piers and girders at different locations exhibit consistent longitudinal vibration due to the track restraining effect, and the effect decreases the maximum response of taller piers while amplifying the minimum response of shorter piers. The rail vertical displacements situated on opposite sides of pier display antisymmetric, and a pronounced linear proportionality is observed between rail vertical displacements and longitudinal pier top displacements. A correlation exists between the upper bound of peak pier top displacement and the structural natural period, and the assessment process for post-seismic train operation capability can be streamlined through the correlation.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"24 10","pages":"9397 - 9422"},"PeriodicalIF":4.2,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189027","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":"Dynamic and energy-based control of glued-laminated timber structures using tuned mass dampers with soil-structure interaction","authors":"Feko Ngnonguini Gaël,&nbsp;Pelap François Beceau","doi":"10.1007/s10518-026-02561-2","DOIUrl":"10.1007/s10518-026-02561-2","url":null,"abstract":"<div><p>Industrial glued-laminated timber (GLT) structures offer a promising solution for sustainable, lightweight and high-performance design. Their low mass and flexibility make them sensitive to severe dynamic excitations, especially seismic events, requiring efficient vibration control strategies. This study investigates the effectiveness of tuned mass dampers (TMDs) on industrial GLT structures, explicitly considering soil-structure interaction (SSI), often underestimated in global dynamic response. Advanced three-dimensional finite element modelling with RFEM 6 allows realistic representation of GLT frames, inertia variations, foundation conditions and TMD integration. Three beam types: double-tapered beams with variable inertia, pitched cambered beams with variable height, and curved beams with constant inertia, combined with four GLT strength classes, are analysed under five representative seismic accelerograms. Configurations include the uncontrolled structure, the structure with a TMD, and the fully coupled structure-TMD-soil system. Results show that TMDs significantly reduce dynamic responses, with peak displacements and accelerations decreasing by over <span>(60% )</span>, depending on beam type and tuning. The highest efficiency occurs for curved beams with constant inertia, due to favorable modal interaction with the TMD. SSI lengthens the fundamental period and redistributes dynamic forces but does not compromise TMD effectiveness when appropriately tuned. Beyond conventional kinematic indicators, comparative energy analysis reveals a reconfiguration of energy flows: the uncontrolled structure acts as an energy accumulator, while TMD integration transforms it into a predominantly dissipative system. This behaviour remains robust under SSI, confirming that TMD efficiency relies on global modification of energy balance rather than solely on amplitude reduction.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"24 10","pages":"9173 - 9202"},"PeriodicalIF":4.2,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189030","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 the soil-structure interaction on the seismic vulnerability assessment of irregular masonry infilled RC buildings on soft soils","authors":"P. Santa-Ana-Lozada,&nbsp;M. V. Requena-Garcia-Cruz,&nbsp;A. Morales-Esteban","doi":"10.1007/s10518-026-02549-y","DOIUrl":"10.1007/s10518-026-02549-y","url":null,"abstract":"<div><p>This study investigates the seismic vulnerability of two existing high-rise reinforced concrete (RC) frame buildings with plan and vertical irregularities and masonry infills, considering the role of soil–structure interaction (SSI). Both structures are located on soft alluvial deposits of the Guadalquivir River and rest on shallow foundations. To capture the influence of SSI on the dynamic response, nonlinear three-dimensional finite element models were developed in OpenSees, incorporating the direct soil modelling and advanced constitutive laws for soil behaviour. A total of 42 bidirectional ground motion records, comprising 21 motions representative of hard soils and 21 of soft soils (Eurocode 8 Types A and C), were employed for linear and nonlinear time-history analyses. Key seismic response parameters—including elastic and inelastic inter-storey drifts, global damage indices, and code-defined damage states (EC8, FEMA 356, Risk-UE, and ATC-40)—were evaluated under both fixed-base and SSI-integrated conditions. Results demonstrated that SSI contributes to increased drift demands, altered collapse mechanisms, and redistribution of damage across the structural system. Despite complying with inter-storey drift limits, in many cases, global damage indices reveal significant vulnerability, even at low drift levels. These outcomes highlight a misalignment between drift-based code thresholds and actual damage patterns when SSI is present. The findings underscore the necessity of incorporating the SSI into performance-based seismic design approaches, particularly for mid- to high-rise masonry-infilled RC buildings on soft soils, to ensure more accurate vulnerability assessments and resilient structural performance.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"24 10","pages":"8263 - 8299"},"PeriodicalIF":4.2,"publicationDate":"2026-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10518-026-02549-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149190033","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}