Earthquake Engineering & Structural Dynamics最新文献

{"title":"Climate Driven Water Table Changes and Their Influence on Liquefaction Response of Integral Bridges","authors":"Yazan B. Asia,&nbsp;Gopal S. P. Madabhushi","doi":"10.1002/eqe.70253","DOIUrl":"https://doi.org/10.1002/eqe.70253","url":null,"abstract":"<p>Integral abutment bridges (IABs) eliminate bearings and joints but transfer seismic demand directly into the surrounding soil, making their response highly sensitive to groundwater conditions and soil–structure interaction. This study presents a 60 g centrifuge testing programme on single-span IABs designed to isolate the influence of water-table elevation on seismic behaviour.</p><p>Water-table elevation was found to be a dominant control on system response. With a saturated foundation and dry backfill, spread-footing IABs experienced the largest settlements, approaching 0.30 m, accompanied by co-seismic ratcheting and minor global rotation. When both foundation and backfill were saturated, early backfill liquefaction shifted the response from kinematic to inertial control. Although settlements reduced to approximately 0.09 m, structural demand increased. Across all spread-footing tests, shallow saturated backfill zones liquefied while soil beneath the footings remained partially liquefied but significantly softened, explaining large settlements without complete loss of support. Piled abutments effectively limited settlements and suppressed liquefaction near the abutments; however, under saturated foundations they developed higher peak and residual bending moments, indicating redistribution rather than reduction of seismic demand.</p><p>These results demonstrate that elevated water tables can induce settlement ratcheting in spread-footing IABs and amplify structural demand in fully saturated systems, highlighting the need for explicit groundwater load cases and SSI-consistent design in seismic and flood-prone regions.</p>","PeriodicalId":11390,"journal":{"name":"Earthquake Engineering & Structural Dynamics","volume":"55 13","pages":"3285-3301"},"PeriodicalIF":4.9,"publicationDate":"2026-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eqe.70253","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148965626","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":"Quantifying Friction Effects on Floor Rotations During Moat Wall Pounding of Base-Isolated Structures","authors":"Catalina Barra,&nbsp;Claudio Sepulveda,&nbsp;Rodrigo González,&nbsp;Ramiro Bazáez","doi":"10.1002/eqe.70249","DOIUrl":"https://doi.org/10.1002/eqe.70249","url":null,"abstract":"<div>\u0000 \u0000 <p>Seismic isolation effectively protects structures by decoupling them from ground motion. However, large isolation displacements may induce pounding against adjacent retaining walls, amplifying displacement and shear demands on the superstructure. Although moat-wall pounding has been extensively addressed numerically and experimentally, the tangential frictional component at the impact interface has received comparatively less attention, particularly regarding its isolated contribution to floor rotations and perimeter engineering demand parameters in base-isolated buildings. This study numerically evaluates the effect of friction during moat-wall pounding on the response of a symmetric base-isolated prototype building with a 2:1 plan aspect ratio, uniformly distributed identical lead rubber bearings, and no intentional mass or stiffness eccentricity to isolate the rotational effects induced by frictional impact from other sources of torsional response. For the considered prototype, results indicate that including friction has a negligible effect on normal impact forces but significantly increases floor rotations and perimeter demands relative to the center of mass. Frictional impact increases perimeter interstory drifts to approximately twice the value observed at the center of mass, while perimeter accelerations increase by approximately 15% relative to the center. Results show that the frictional component of moat-wall pounding alone can induce non-negligible rotational response, highlighting the importance of including friction in simulations of potential impact in seismically isolated buildings.</p>\u0000 </div>","PeriodicalId":11390,"journal":{"name":"Earthquake Engineering & Structural Dynamics","volume":"55 13","pages":"3319-3337"},"PeriodicalIF":4.9,"publicationDate":"2026-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148965704","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":"Semi-Analytical Solution for Topographic Amplification of SH Waves on Rocky Ridges With Multi-Level Asymmetric Slopes","authors":"Xiaopeng Wei,&nbsp;Zailin Yang,&nbsp;Yunqiu Song,&nbsp;Minghe Li,&nbsp;Yong Yang,&nbsp;Menghan Sun","doi":"10.1002/eqe.70259","DOIUrl":"https://doi.org/10.1002/eqe.70259","url":null,"abstract":"<div>\u0000 \u0000 <p>The geometric irregularity of topographic interfaces induces prominent reflection and scattering of seismic waves during propagation. In particular terrain configurations, constructive interference among incident, reflected, and scattered waves can result in substantial topographic amplification. This study addresses the SH-wave scattering problem in elastic half-spaces with geometrically complex slope ridges, proposing a series solution method based on complex function method and wave function expansion method. By employing multi-region matching technique and introducing two semi-circular auxiliary boundaries, the scattering problem of multi-slope complex protrusions is effectively resolved. The half-space is divided into three sub-regions, and a domain-function construction is developed for asymmetric geometries. Complex-variable theory handles the coordinate transformation between these functions and simplifies the analysis. The results demonstrate that this method exhibits good applicability and computational efficiency in addressing symmetric or asymmetric geometric protrusion SH-wave scattering problems. Finally, numerical results are utilized to analyze the influence of protrusion geometric characteristics, incident wave frequency, and angle of incidence on ground motion, providing benchmarks for numerical method validation and offering significant implications for seismic site selection and engineering protection.</p>\u0000 </div>","PeriodicalId":11390,"journal":{"name":"Earthquake Engineering & Structural Dynamics","volume":"55 13","pages":"3403-3417"},"PeriodicalIF":4.9,"publicationDate":"2026-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148965706","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":"Out-of-Plane Deformation Effects on the Seismic Performance of Friction Plastic-Hinge-Supported Walls: Experimental and Analytical Study","authors":"Qi Tang,&nbsp;Yao Cui,&nbsp;Ruixin Tian,&nbsp;Tao Wang","doi":"10.1002/eqe.70245","DOIUrl":"https://doi.org/10.1002/eqe.70245","url":null,"abstract":"<div>\u0000 \u0000 <p>The concentration of damage in the plastic hinge region of conventional reinforced concrete (RC) shear walls poses significant challenges to post-earthquake functional recovery. To address this, the Friction Plastic-hinge-Supported Wall (FPSW) was proposed as a resilient alternative. This system integrates a physical hinge at the base with replaceable friction dampers, isolating inelastic deformation while protecting the upper wall. Although out-of-plane actions severely impair conventional RC walls, their impact on FPSWs requires investigation. This study investigates the multi-axial seismic performance of FPSWs through subassemblage-level quasi-static testing under bidirectional loading. The experimental program evaluated out-of-plane deformation effects, damper connection details (pin-connected vs. cross-plate welded), and construction methods (cast-in-place vs. precast). Results demonstrate robust spatial stability; in-plane strength reduction due to projection efficiency loss remained below 10% even under a significant out-of-plane drift of 1/50 rad. Furthermore, cross-plate welded connections effectively eliminated mechanical slack, thereby enhancing initial stiffness and energy dissipation compared to pin connections. The tests also validated the reliability of the connection between the precast wall and the FPSW base. Finally, an analytical model accounting for out-of-plane interaction was developed. The proposed equations for predicting stiffness and strength agree with test results within a 15% margin, establishing a practical basis for local capacity-design workflows.</p>\u0000 </div>","PeriodicalId":11390,"journal":{"name":"Earthquake Engineering & Structural Dynamics","volume":"55 13","pages":"3244-3263"},"PeriodicalIF":4.9,"publicationDate":"2026-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148965627","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":"Surrogate-Based Time-Continuous Seismic Fragility Assessment of Corrosion-Deteriorated Reinforced Concrete Bridges Under Climate Change","authors":"Yexiang Yan,&nbsp;Yazhou Xie","doi":"10.1002/eqe.70254","DOIUrl":"https://doi.org/10.1002/eqe.70254","url":null,"abstract":"<p>Seismic fragility assessment of reinforced concrete (RC) bridges exposed to corrosive environments must reliably capture time-dependent deterioration impacts. Climate change compounds this challenge through nonstationary temperature and humidity variations that accelerate bridge corrosion. Due to the embedded significant computational cost, prior studies typically develop corrosion-based seismic fragility models at coarse, discrete time intervals (e.g., every 10 years). In contrast, this study proposes a surrogate-based, two-stage analysis framework that enables high-resolution, time-continuous seismic fragility assessment of columns and bearings in RC bridges under corrosion deterioration and climate change. In Stage I, normalized deterioration factors are treated as explicit stochastic inputs that modify bridge attributes (e.g., material properties and cross-sectional dimensions), which are fed into numerical simulations to obtain corresponding bridge seismic demands and capacities. These bridge demand/capacity data are then used to train Gaussian-process surrogates conditioned directly on the deterioration factors. In Stage II, climate-change and corrosion scenarios are separately modeled to generate nonstationary, time-dependent trajectories of deterioration factors, which are propagated through the surrogates to produce continuous, time-PGA fragility surfaces over the bridge lifetime. Monte Carlo simulations are also integrated to quantify and propagate uncertainties across different modeling steps. The proposed methodology is demonstrated through three-span continuous RC bridges in Eastern Canada, a region characterized by moderate seismicity and pervasive chloride-induced corrosion due to heavy use of de-icing salts. Results show that the framework captures how ground motion intensity, climate change, bridge service life, construction year, and geometric attributes jointly influence high-resolution evolutions of fragility estimates. The methodology provides an extensible platform for time-dependent, multi-hazard fragility and risk assessment and offers valuable insights to support bridge design, inspection, maintenance, and retrofit decision-making.</p>","PeriodicalId":11390,"journal":{"name":"Earthquake Engineering & Structural Dynamics","volume":"55 13","pages":"3338-3362"},"PeriodicalIF":4.9,"publicationDate":"2026-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eqe.70254","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148965693","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":"Full-Scale Shaking Table Tests on a Resilient Dual Lateral System: First-Story-Rocking System With Gravity Frame","authors":"Hong-Tai Zhang,&nbsp;Yu-Ao Lin,&nbsp;Wenhao Sun,&nbsp;Bing Zhao,&nbsp;Rui Zhang,&nbsp;Ping Xiang,&nbsp;Xianzhong Zhao,&nbsp;Gregory A. MacRae,&nbsp;Zhenduo Yan,&nbsp;Yudi Zhang,&nbsp;George Charles Clifton,&nbsp;Geoffrey Rodgers,&nbsp;Pierre Quenneville,&nbsp;Rajesh P. Dhakal,&nbsp;Shahab Ramhormozian,&nbsp;Liang-Jiu Jia","doi":"10.1002/eqe.70246","DOIUrl":"https://doi.org/10.1002/eqe.70246","url":null,"abstract":"<div>\u0000 \u0000 <p>In this paper, a first-story-rocking system (FSRS) with gravity frame which is a seismic resilient dual lateral system was investigated. Among them, rocking frame with bilinear elastic rocking is expected to protect the upper moment resisting stories through first story rocking; Gravity frame with low-damage joints served as a seismic resilient component that collaborates with rocking frames to optimize global stability and control the maximum displacement. As a part of the RObust BUilding SysTem (ROBUST) collaborative China-New Zealand program, a full-scale 3-story FSRS with gravity frame was designed. A series of shaking table tests were conducted to evaluate the dynamic behavior and seismic performance of the FSRS with gravity frame. The test results indicated that the tested building exhibited a longer instantaneous period under stronger excitations while the fundamental period identified by the white noise remained constant. The maximum inter-story drift ratio satisfied the limit of the current Chinese code for seismic design and the residual displacement was negligible. Horizontal vibration of the upper stories was well controlled, benefiting from the first-story rocking motion. Moreover, the restraining effect of the composite floor and gravity frame played a crucial role in mitigating the inter-story drift concentration in the first rocking story and the torsional response in the upper stories. The experimental results not only validated the expected excellent seismic performance of the resilient dual lateral system but also provided benchmark full-scale data for further analyses of numerical models and design methods.</p>\u0000 </div>","PeriodicalId":11390,"journal":{"name":"Earthquake Engineering & Structural Dynamics","volume":"55 13","pages":"3207-3223"},"PeriodicalIF":4.9,"publicationDate":"2026-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148965616","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":"Towards Phase Consistent Hybrid Broadband Ground Motion Simulations: A Disentangling Formulation of Spectral Acceleration Accounting for the Contributions of Fourier Phase and Amplitude Spectra","authors":"Zhinan Xie,&nbsp;Tianyu Zhou,&nbsp;Shuai Wang,&nbsp;Yangtao Yuan","doi":"10.1002/eqe.70261","DOIUrl":"https://doi.org/10.1002/eqe.70261","url":null,"abstract":"<div>\u0000 \u0000 <p>Hybrid method for broadband ground motion simulation combines deterministic low-frequency (LF) simulation with stochastic high-frequency (HF) simulation. The stochastic simulation combines empirical Fourier amplitude spectra (FAS) matching with random phase assumptions, thereby avoiding the need for high-resolution velocity structures and the massive computational resources required for deterministic HF simulation. However, hybrid simulation introduces inconsistencies in both the Fourier amplitude spectra and Fourier phase spectra (FPS) between the LF and HF components. While FAS discrepancies could be addressed by spectral blending, the inconsistency between the deterministic LF and the random HF phase remains a challenge. This inconsistency introduces unphysical distortions into the broadband spectral acceleration (SA), which compromise subsequent structural response analyses. To resolve this challenge, a clear understanding of the effect of FAS and FPS on SA is required, leading to the proposal of a disentangling formulation of SA in this study. The formulation expresses SA as a product of (1) a baseline SA, (2) an FAS effect term, and (3) an FPS effect term. Validation against the NGA-West2 and KiK-net databases confirms the formulation's robustness. Crucially, the proposed formulation reveals that the FPS effect is governed predominantly by low-frequency phase. This insight enables a new hybrid method: while long-period SA is simulated with the deterministic method, short-period SA can be reconstructed by combining HF simulated FAS with only the LF phase from deterministic simulations, thereby guaranteeing phase consistency. The efficacy of this strategy is demonstrated via ground motion simulation of the Noto earthquake.</p>\u0000 </div>","PeriodicalId":11390,"journal":{"name":"Earthquake Engineering & Structural Dynamics","volume":"55 13","pages":"3418-3438"},"PeriodicalIF":4.9,"publicationDate":"2026-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148965707","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":"Assessing Dynamic Response of Slender Structures: A Novel Framework Using Dimensional Analysis","authors":"Arghyadeep Banerjee,&nbsp;Rana Roy","doi":"10.1002/eqe.70255","DOIUrl":"https://doi.org/10.1002/eqe.70255","url":null,"abstract":"<div>\u0000 \u0000 <p>This study develops two parallel seismic design frameworks—spectrum based iterative design (SBID) and spectrum based direct design (SBDD)—for free-standing slender systems subjected to base excitation, founded on the principles of dimensional analysis. The formulation establishes an intrinsic relationship between the two approaches, demonstrating that they are fundamentally interlinked through consistent non-dimensional parameters governing rocking response. Within the SBID framework, design is achieved through the combined and iterative use of stability coefficient spectra (SCS) and rocking spectra (RS), which together capture acceleration demand and rotational response. In contrast, the SBDD approach employs constant rotation spectra (CRS) to directly relate excitation intensity to a prescribed permissible rotation (implicitly ensuring stability). As such, SBDD obviates the need for iterations and enhances computational efficiency. The spectra are constructed for both idealized pulse-type and recorded seismic excitations, illustrating their applicability across a range of loading scenarios. The methodology is further extended to bidirectional excitations, where coupled rotations about orthogonal axes are considered. It is shown that the proposed methodology can explicitly incorporate the effects of base flexibility and incidence angles of loading. Overall, the study provides a unified and efficient framework, especially for preliminary assessment and design of rocking systems.</p>\u0000 </div>","PeriodicalId":11390,"journal":{"name":"Earthquake Engineering & Structural Dynamics","volume":"55 13","pages":"3363-3381"},"PeriodicalIF":4.9,"publicationDate":"2026-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148965709","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":"Drift-Based Component Fragility Functions and Nonlinear Backbones for Existing Non-Ductile Exterior Beam-Column Joints With Different Detailing","authors":"Maria Zucconi,&nbsp;Marcello Sabene,&nbsp;Stefano Pampanin,&nbsp;Barbara Ferracuti","doi":"10.1002/eqe.70237","DOIUrl":"https://doi.org/10.1002/eqe.70237","url":null,"abstract":"<div>\u0000 \u0000 <p>The damage after an earthquake in Reinforced Concrete (RC) moment-resisting frames is often observed at the beam-column joints due to their vulnerability associated, among others, with poor structural details. An important issue is to estimate the rotational capacity of typical existing exterior joints and to evaluate their fragility functions at different damage states as a tool for loss assessment of RC buildings. With this aim, a macro-model of the connection subset was developed and calibrated on eleven experimental data available in literature or yet unpublished, characterized by the absence of shear reinforcement within the joint panel zone and by two typical longitudinal beam bar anchorage layouts, namely hooked and bent-in. For both the structural details, three ranges for the joint panel rotations were proposed corresponding to three distinct damage conditions defined as a function of the rotation capacity, as low, medium, and severe damage, corresponding respectively to the first cracking, extensive damage/peak capacity in the joint, and incipient collapse. Furthermore, bi-linear and tri-linear backbones for the non-linear moment-rotation spring of the RC joint were suggested, both for practitioner use and for the research field, depending on the required level of accuracy. Through an extended parametric analysis, 20,952 exterior joints were numerically simulated. The analyzed joints were defined by selecting plausible combinations between geometrical, mechanical, and structural input parameters. The numerical results were used to build the fragility functions for three damage states.</p>\u0000 </div>","PeriodicalId":11390,"journal":{"name":"Earthquake Engineering & Structural Dynamics","volume":"55 12","pages":"3137-3160"},"PeriodicalIF":4.9,"publicationDate":"2026-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148903779","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":"Rocking and Rolling of Rigid Polygons Under Seismic Excitation","authors":"Atif Rasheed,&nbsp;Christian Málaga-Chuquitaype","doi":"10.1002/eqe.70244","DOIUrl":"https://doi.org/10.1002/eqe.70244","url":null,"abstract":"<p>We present an event driven analytical framework for rigid cyclic polygons subjected to horizontal ground excitation in which uplift, impact, and successive pivot switching are treated within a unified non-smooth dynamical description. Rolling is defined as a sequence of energetically admissible transitions between neighbouring vertices tied to geometry, restitution, and excitation intensity. We demonstrate that the motion of a repetitive polygonal assembly layer can be reduced to a classical rocking equation with a modified frequency parameter governed by polygon geometry and superstructure-to-polygon mass ratio. By idealising rolling as a repeatable kinematic mechanism, response regimes are mapped as functions of polygon resolution and irregularity. Relevant response metrics are quantified, including cumulative maximum and cumulative permanent rotations, acceleration amplification, and energy dissipation. Increasing polygon resolution is found to promote bounded rolling-dominated regimes while reducing peak acceleration demands. When subjected to real earthquake records, more irregular polygons generally exhibit lower cumulative rotations across the range of intensities analysed, whereas peak accelerations remain strongly influenced by discrete impact events and by earthquake duration scaling. The proposed framework provides a preliminary rational basis for understanding rigid-body rocking-rolling isolation systems governed by geometry and contact kinematics.</p>","PeriodicalId":11390,"journal":{"name":"Earthquake Engineering & Structural Dynamics","volume":"55 12","pages":"3161-3180"},"PeriodicalIF":4.9,"publicationDate":"2026-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eqe.70244","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148904018","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}