Soil Dynamics and Earthquake Engineering最新文献_第10页

A novel framework to assess stability of slender structures with base flexibility under bidirectional shaking 基于基础柔性的细长结构在双向振动下稳定性评估的新框架

IF 4.6 2区工程技术

Soil Dynamics and Earthquake Engineering Pub Date : 2025-09-09 DOI: 10.1016/j.soildyn.2025.109771

Arghyadeep Banerjee, Prithwish Kumar Das, Rana Roy

{"title":"A novel framework to assess stability of slender structures with base flexibility under bidirectional shaking","authors":"Arghyadeep Banerjee, Prithwish Kumar Das, Rana Roy","doi":"10.1016/j.soildyn.2025.109771","DOIUrl":"10.1016/j.soildyn.2025.109771","url":null,"abstract":"<div><div>The investigation explores the dynamic response of three-dimensional slender structures, focusing on the influence of base flexibility under both unidirectional and bidirectional seismic excitations. A previously developed physical model is extended to incorporate flexible base conditions and has been validated for both free and forced vibration. A dimensionless framework is formulated to generalize the findings across varying soil conditions and system properties. Key response parameters, namely overturning acceleration and maximum rotation, are analyzed to assess dynamic stability. The study introduces the novel stability coefficient spectra, which in conjunction with the rocking spectra can provide quantitative measures of acceleration intensity for a selected performance state. Results reveal that base flexibility can significantly enhance stability by reducing overturning zones and limiting peak rotations suggesting the deficiencies of conventional unidirectional analysis and rigid base assumptions. The proposed framework of rocking spectra triad for bidirectional loading appears promising in reducing dispersion when applied to an ensemble of seismic records. This approach may be examined further as a viable strategy for improved seismic design accounting for the effects of base flexibility and ground motion directionality.</div></div>","PeriodicalId":49502,"journal":{"name":"Soil Dynamics and Earthquake Engineering","volume":"200 ","pages":"Article 109771"},"PeriodicalIF":4.6,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145019662","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}

引用次数: 0

Seismic response of segmental tunnel in soil-rock strata under longitudinal excitation: experimental and numerical analysis 土-岩地层中管片隧道纵向激励下的地震响应：试验与数值分析

IF 4.6 2区工程技术

Soil Dynamics and Earthquake Engineering Pub Date : 2025-09-09 DOI: 10.1016/j.soildyn.2025.109770

Siming Li , Yong Yuan , Haitao Yu , Jinghua Zhang , Mingqing Xiao , Roberto Cudmani

{"title":"Seismic response of segmental tunnel in soil-rock strata under longitudinal excitation: experimental and numerical analysis","authors":"Siming Li , Yong Yuan , Haitao Yu , Jinghua Zhang , Mingqing Xiao , Roberto Cudmani","doi":"10.1016/j.soildyn.2025.109770","DOIUrl":"10.1016/j.soildyn.2025.109770","url":null,"abstract":"<div><div>Tunnels passing through inhomogeneous ground conditions are particularly susceptible to significant damage during earthquakes. This study investigates the seismic response of a segmental tunnel crossing soil-rock strata under longitudinal excitation. A 1<em>g</em> shaking table test is conducted to model the soil-structure interaction (SSI) system. Earthquake input and observation focus on longitudinal SSI. The experimental results are then employed to calibrate a 3D finite element (FE) model, where the seismic behavior of synthetic model soil is characterized by a kinematic hardening constitutive model, and the model rock and tunnel are simulated using an elastic constitutive model. The validated FE model shows good agreement with the shaking table test results and provides insights into the longitudinal joint deformation and overall deformation patterns of the tunnel. Considering the key seismic characteristics of the tunnel, a simplified analytical model for calculating the joint extension is developed and verified against the numerical results, quantitively revealing the concentrated joint deformation caused by the ground with abruptly varying stiffness.</div></div>","PeriodicalId":49502,"journal":{"name":"Soil Dynamics and Earthquake Engineering","volume":"200 ","pages":"Article 109770"},"PeriodicalIF":4.6,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145019663","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}

引用次数: 0

Seismic microzonation study on nonlinear site-specific ground response of Burdur soils (SW Türkiye) Burdur土非线性场地响应的地震微区划研究（SW t<s:1> rkiye）

IF 4.6 2区工程技术

Soil Dynamics and Earthquake Engineering Pub Date : 2025-09-08 DOI: 10.1016/j.soildyn.2025.109758

Mehmet Alpyürür

{"title":"Seismic microzonation study on nonlinear site-specific ground response of Burdur soils (SW Türkiye)","authors":"Mehmet Alpyürür","doi":"10.1016/j.soildyn.2025.109758","DOIUrl":"10.1016/j.soildyn.2025.109758","url":null,"abstract":"<div><div>The Burdur settlement area is highly prone to earthquake activity due to its location on an active fault and its predominantly unconsolidated Quaternary alluvial deposits. This study presents a site-specific microzonation based on one-dimensional nonlinear ground response analysis (NLGRA) and evaluates the local seismic hazard. A probabilistic seismic hazard analysis was conducted to generate seismic hazard curves based on different earthquake hazard levels, ground types, and spectral periods defined in the 2018 Türkiye Building Earthquake Code (TBEC 2018). Spectral amplification factors (SAFs) were determined using three methods: 1) a hybrid ground motion prediction equation, 2) amplification factors from TBEC 2018 and Eurocode 8, and 3) the results of the NLGRA. The amplification factors estimated using NLGRA exceeded those from TBEC 2018 and Eurocode 8, with maximum values of 2.58 and 2.88, respectively, in the periods corresponding to the natural vibration periods of the structures in the study area. These findings indicate that buildings in the region may be subjected to considerably higher dynamic loads than those anticipated by current seismic codes. SAFs of up to 3.51 were determined close to Burdur Lake. An increasing trend in long-period SAFs was observed in the southeast-northwest direction, correlating with the increasing thickness of alluvial deposits. The results further emphasize the importance of taking into account resonance phenomena, especially for periods exceeding 0.5 s.</div></div>","PeriodicalId":49502,"journal":{"name":"Soil Dynamics and Earthquake Engineering","volume":"200 ","pages":"Article 109758"},"PeriodicalIF":4.6,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145019659","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}

引用次数: 0

Shaking table test of three-dimensional base-isolated liquid storage tanks in power plants 电站三维基础隔离储液罐振动台试验

IF 4.6 2区工程技术

Soil Dynamics and Earthquake Engineering Pub Date : 2025-09-08 DOI: 10.1016/j.soildyn.2025.109793

Guibo Nie, Zhiyong Wang, Yujie Shi, Wei Wang, Ke Du

{"title":"Shaking table test of three-dimensional base-isolated liquid storage tanks in power plants","authors":"Guibo Nie, Zhiyong Wang, Yujie Shi, Wei Wang, Ke Du","doi":"10.1016/j.soildyn.2025.109793","DOIUrl":"10.1016/j.soildyn.2025.109793","url":null,"abstract":"<div><div>As one of the core components in power plants, liquid storage tanks are responsible for storing critical materials such as coolant and fuel. Their seismic reliability is therefore essential to the safe operation of the entire power plant system. To address this concern, a novel three-dimensional isolation bearing was developed in this study, and a series of shaking table tests were conducted. The experiments focused on investigating the dynamic characteristics and seismic response of the tank, and the performance of the proposed isolation bearing. The results indicate that the storage tank exhibits excellent seismic resistance, with no structural damage observed during the tests. Additionally, the vertical fundamental frequency of the tank was found to be significantly higher than the predominant frequency range of typical ground motions, suggesting a relatively low demand for vertical isolation. Furthermore, the proposed three-dimensional isolation bearing demonstrated effective horizontal isolation performance. However, the tests also revealed that under triaxial excitation, the isolation system exhibited noticeable rocking behavior, which may cause internal liquid leakage and, more critically, pose a risk of tank overturning. Finally, this study used numerical simulations to verify that the incorporation of viscous dampers in the 3D isolation bearings can significantly enhance their vertical isolation performance, and corresponding recommendations are proposed regarding the arrangement spacing of the isolation bearings.</div></div>","PeriodicalId":49502,"journal":{"name":"Soil Dynamics and Earthquake Engineering","volume":"200 ","pages":"Article 109793"},"PeriodicalIF":4.6,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145019660","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}

引用次数: 0

Evaluation of excess pore pressure and liquefaction for rocking wind turbine foundations 摇摆式风力机地基超孔隙压力及液化评估

IF 4.6 2区工程技术

Soil Dynamics and Earthquake Engineering Pub Date : 2025-09-07 DOI: 10.1016/j.soildyn.2025.109785

Behrouz Badrkhani Ajaei, M. Hesham El Naggar

{"title":"Evaluation of excess pore pressure and liquefaction for rocking wind turbine foundations","authors":"Behrouz Badrkhani Ajaei, M. Hesham El Naggar","doi":"10.1016/j.soildyn.2025.109785","DOIUrl":"10.1016/j.soildyn.2025.109785","url":null,"abstract":"<div><div>Restrictions on uplifts of shallow foundations have been modified for bridge and building foundations to enable more efficient and sustainable performance-based design. This new philosophy of designing foundations against strong earthquake shaking is also being considered for wind turbine foundations in recent years. In order to allow foundation uplifts in saturated sand, the effects of induced cyclic strains on liquefaction susceptibility should be addressed. In this paper, an efficient method for computation of excess pore pressure accumulation and dissipation in saturated sand is incorporated into finite element modeling of a rocking foundation. The developed model is validated against experimental data from centrifuge tests of shallow foundation resting on saturated sand. Subsequently, the validated methodology is applied to finite element simulation of wind turbine foundations. The results demonstrated that a small uplift region can be tolerated to develop under operational conditions of a wind turbine foundation in saturated sand without occurrence of liquefaction. A reconsideration and easing of the uplift restrictions can lead to economical designs for new foundations of wind turbines and re-purposing of existing foundations for larger wind turbines.</div></div>","PeriodicalId":49502,"journal":{"name":"Soil Dynamics and Earthquake Engineering","volume":"200 ","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007720","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}

引用次数: 0

Enhancing seismic site response prediction by supplementing shallow shear-wave velocity characteristics 通过补充浅层横波速度特征增强地震现场反应预测

IF 4.6 2区工程技术

Soil Dynamics and Earthquake Engineering Pub Date : 2025-09-07 DOI: 10.1016/j.soildyn.2025.109775

Lingsheng Zeng , John X. Zhao , Ruibin Hou

{"title":"Enhancing seismic site response prediction by supplementing shallow shear-wave velocity characteristics","authors":"Lingsheng Zeng , John X. Zhao , Ruibin Hou","doi":"10.1016/j.soildyn.2025.109775","DOIUrl":"10.1016/j.soildyn.2025.109775","url":null,"abstract":"<div><div>The shallow soil layers play a critical role in affecting the seismic site response. Commonly used site parameters in engineering practice and site response prediction models—such as the time-averaged shear-wave velocity (<em>V</em><sub>S</sub>) in the top 30 m (<em>V</em><sub>S30</sub>) and the site period—may overlook the high impedance contrast and weak stiffness of soft soil layers near the surface. This study examines the complementary role of the uppermost soil layers, characterized by an impedance contrast parameter <em>I</em><sub>m10</sub> and a velocity parameter <em>V</em><sub>S10</sub>, in enhancing site response prediction using ground motion data from KiK-net stations in Japan. Analysis of the <em>V</em><sub>S</sub> profiles reveals that the commonly used dual-parameter method inadequately characterizes the impedance contrasts and <em>V</em><sub>S</sub> properties of shallow soils. Sites with large <em>I</em><sub>m10</sub> and small <em>V</em><sub>S10</sub> would additionally produce larger linear site amplification and stronger nonlinear response. We demonstrate that incorporating <em>I</em><sub>m10</sub> and <em>V</em><sub>S10</sub> alongside commonly used parameters improves prediction accuracy for both linear and nonlinear site effects, as evidenced by one-dimensional (1D) site amplification ratios and ground motion observations. The supplementary contribution of <em>V</em><sub>S10</sub> and <em>I</em><sub>m10</sub> to site response in empirical ground motion records is much weaker than 1D linear analysis, which may be caused by the inaccuracy of measured near-surface shear-wave velocity, and the 2D/3D effect. Given that <em>I</em><sub>m10</sub> and <em>V</em><sub>S10</sub> can be obtained without incurring additional costs in many engineering projects, we recommend their integration into site classification systems and site response prediction models.</div></div>","PeriodicalId":49502,"journal":{"name":"Soil Dynamics and Earthquake Engineering","volume":"200 ","pages":"Article 109775"},"PeriodicalIF":4.6,"publicationDate":"2025-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007721","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}

引用次数: 0

New conditional ground motion model for permanent displacement in near-fault zones 近断裂带永久位移的新条件地震动模型

IF 4.6 2区工程技术

Soil Dynamics and Earthquake Engineering Pub Date : 2025-09-06 DOI: 10.1016/j.soildyn.2025.109774

Longjun Xu , Hao Tian , Chaoyue Jin , Huabei Liu , Jie Wang , Wen Liu , Lili Xie

{"title":"New conditional ground motion model for permanent displacement in near-fault zones","authors":"Longjun Xu , Hao Tian , Chaoyue Jin , Huabei Liu , Jie Wang , Wen Liu , Lili Xie","doi":"10.1016/j.soildyn.2025.109774","DOIUrl":"10.1016/j.soildyn.2025.109774","url":null,"abstract":"<div><div>An accurate assessment of after-earthquake permanent displacement (PD) is crucial for the anti-dislocation of structures situated across or near fault zones. The conditional ground motion model (CGMM) is an effective method for estimating after-earthquake PD. We draw on the global NEar-Source Strong-motion (NESS) database and incorporates peak ground displacement (PGD) as a secondary parameter. The model accounts for key factors such as moment magnitude (<em>M</em><sub>w</sub>), focal depth, fault type, rupture distance (<em>R</em><sub><em>rup</em></sub>), and average site shear wave velocity (<em>V</em><sub>S30</sub>). A CGMM was developed through random-effects model regression analysis to achieve a robust estimation of after-earthquake PD. The performance of the developed CGMM was validated through residual analysis, by systematically examining the influence of explanatory variables on model predictions, and through comprehensive comparisons with prior models. The results demonstrate that the developed conditional model successfully captures the attenuation trends of PD. <em>M</em><sub>w</sub>, <em>R</em><sub><em>rup</em></sub>, and <em>V</em><sub>S30</sub> have varying degrees of impact on the model predictions; as the <em>M</em><sub>w</sub> and focal depth increase, the PD value increases. The CGMM demonstrates a pronounced near-field saturation effect. The research findings can serve as a valuable reference for the anti-dislocation design of lifeline engineering projects that cross or are in near fault zones, as well as for Probabilistic Fault Displacement Hazard Analysis (PFDHA).</div></div>","PeriodicalId":49502,"journal":{"name":"Soil Dynamics and Earthquake Engineering","volume":"200 ","pages":"Article 109774"},"PeriodicalIF":4.6,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145004832","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}

引用次数: 0

Shaking table test of long-span arch bridge with MTMD under transverse seismic excitations 横向地震作用下MTMD大跨拱桥振动台试验

IF 4.6 2区工程技术

Soil Dynamics and Earthquake Engineering Pub Date : 2025-09-06 DOI: 10.1016/j.soildyn.2025.109786

Lihui Wang , Jie Huang , Qiang Han , Kun Xu , Jianian Wen , Xiuli Du

引用次数: 0

Ground vibration due to a train running at different speed on a test track 列车在试验轨道上以不同速度运行时产生的地面振动

IF 4.6 2区工程技术

Soil Dynamics and Earthquake Engineering Pub Date : 2025-09-06 DOI: 10.1016/j.soildyn.2025.109768

D. Carneiro, T. Alexiou, P. Reumers, G. Degrande

{"title":"Ground vibration due to a train running at different speed on a test track","authors":"D. Carneiro, T. Alexiou, P. Reumers, G. Degrande","doi":"10.1016/j.soildyn.2025.109768","DOIUrl":"10.1016/j.soildyn.2025.109768","url":null,"abstract":"<div><div>Results of an extensive experimental campaign at the VUZ Test Centre in Velim, Czech Republic, are presented where free field vibration was measured during 32 passages of the same InterCity train within a wide speed range between 40 km/h and 200 km/h. To that purpose, 26 accelerometers were mounted on five parallel measurement lines, comprising 5 shock accelerometers on the rail head, 5 general purpose accelerometers on the edge of sleepers, and 16 seismic accelerometers in the free field. Vibration velocity levels are presented in one-third octave bands considering the influence of train speed and track-receiver distance. A 2.5D track-soil model in combination with a single-degree-of-freedom vehicle model and measured track unevenness are employed to predict vibration velocity levels in the free field. The 2.5D track-soil model couples an analytical track model to a boundary element model of the layered soil in the wavenumber–frequency domain. Dynamic soil characteristics were determined by means of combined Multi-channel Analysis of Surface Waves and seismic refraction tests, revealing a soft shallow soil stratum (containing the ground water table) on top of stiff bedrock, which has a determining influence on the propagation of dispersive Rayleigh waves and refracted P-waves. As the line source transfer mobility was also measured with multiple impact points along the track, the dynamic excitation can be characterized by means of a force density. The dataset presented in this paper will be very useful to researchers who wish to validate prediction models with experimental data at varying train speed. The paper also presents valuable information for train manufacturers who wish to assess the vibration impact of their rolling stock by means of in situ testing at the VUZ Test Centre and transfer these results to sites with different track and soil properties.</div></div>","PeriodicalId":49502,"journal":{"name":"Soil Dynamics and Earthquake Engineering","volume":"200 ","pages":"Article 109768"},"PeriodicalIF":4.6,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145004834","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}

引用次数: 0

Study on the dynamic coupling effect of granular particle-silo structure under seismic action based on DEM-FEM method 基于DEM-FEM方法的地震作用下颗粒-筒仓结构动力耦合效应研究

IF 4.6 2区工程技术

Soil Dynamics and Earthquake Engineering Pub Date : 2025-09-05 DOI: 10.1016/j.soildyn.2025.109764

Hai Cao , Yonggang Ding , Qikeng Xu , Hongling Song , ZhiYao Zhou

{"title":"Study on the dynamic coupling effect of granular particle-silo structure under seismic action based on DEM-FEM method","authors":"Hai Cao , Yonggang Ding , Qikeng Xu , Hongling Song , ZhiYao Zhou","doi":"10.1016/j.soildyn.2025.109764","DOIUrl":"10.1016/j.soildyn.2025.109764","url":null,"abstract":"<div><div>This study develops an advanced DEM-FEM computational framework to examine seismic performance of the squat ground-supported silo (GSS), validated through shaking table experiments and employing coarse-graining techniques for full-scale simulation. By analyzing the acceleration response field of particles, the dynamic lateral pressure of particles on the silo wall, and the stress distribution of the silo wall, the law of the dynamic coupling between particles and the silo is revealed. Major findings include: (1) Nonlinear wave propagation through granular media produces height-dependent phase delays in particle-layer responses, amplifying with PGA; (2) Acceleration profiles maintain wave-specific distributions while showing increased curvature at higher intensities, indicating nonlinear amplification; (3) Dynamic pressure maxima are jointly determined by static pressure patterns and input direction, frequently deviating from excitation axes; (4) Overpressure distributions exhibit consistent top-high/base-low patterns that scale linearly with PGA; (5) Structural analysis reveals von Mises stress concentrations at wall-base connections, spatially aligned with pressure peaks and showing directional deviation. These results fundamentally establish granular-induced loading as the primary seismic demand mechanism for squat silos, rather than structural inertia alone. The study provides practical design recommendations: (a) directional seismic excitation protocols aligned with static pressure maxima, (b) targeted reinforcement of stress-critical junctions.</div></div>","PeriodicalId":49502,"journal":{"name":"Soil Dynamics and Earthquake Engineering","volume":"200 ","pages":"Article 109764"},"PeriodicalIF":4.6,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145004831","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}

引用次数: 0