Journal of Constructional Steel Research最新文献_第9页

Integrating lumped damage mechanics and LSTM networks for the time-dependent reliability assessment of tubular offshore trusses under stochastic corrosion 集总损伤力学与LSTM网络相结合的海上管状桁架随机腐蚀时变可靠性评估

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2026-03-01 Epub Date: 2025-12-12 DOI: 10.1016/j.jcsr.2025.110190

Scarlet Montilla , Rúbia Bosse , Gustavo Gidrão , Ricardo Picón , André Beck , Wei Li , Julio Flórez-López

{"title":"Integrating lumped damage mechanics and LSTM networks for the time-dependent reliability assessment of tubular offshore trusses under stochastic corrosion","authors":"Scarlet Montilla , Rúbia Bosse , Gustavo Gidrão , Ricardo Picón , André Beck , Wei Li , Julio Flórez-López","doi":"10.1016/j.jcsr.2025.110190","DOIUrl":"10.1016/j.jcsr.2025.110190","url":null,"abstract":"<div><div>A probabilistic framework is presented for the time-dependent reliability of tubular truss structures under stochastic corrosion and deterministic wind lateral loads. The chemo-mechanical Lumped Damage Mechanics (LDM) element treats corrosion as a nodal degree of freedom and captures spatial–temporal degradation, local buckling under compression, plastic hardening in tension and counter-buckling under cycles. This physics-based model is coupled with data-driven tools: a Random Forest classifier is used to estimate limit-state exceedance in order to generate fragility curves, and an LSTM network is used to forecast node-level damage trajectories. An offshore truss case study involving 8800 simulations yields 666,578 sequences for training purposes, demonstrating widespread moderate damage without collapse and identifying critical members. It also shows that corrosion amplifies both capacity loss and uncertainty over service life. This hybrid framework offers a computationally efficient and scalable lifecycle assessment, supporting risk-informed inspection and maintenance in challenging marine environments.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"238 ","pages":"Article 110190"},"PeriodicalIF":4.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145736007","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

Three-dimensional distribution of residual stresses in ultra-thick dissimilar cast–welded steel bridge joint 超厚异种铸焊钢桥梁接头残余应力的三维分布

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2026-03-01 Epub Date: 2025-12-08 DOI: 10.1016/j.jcsr.2025.110171

Bin Qiang , Dian Lei , Chenxiao Zhang , Xin Pan , Xing Liu , Hongchang Shi , Yadong Li

{"title":"Three-dimensional distribution of residual stresses in ultra-thick dissimilar cast–welded steel bridge joint","authors":"Bin Qiang , Dian Lei , Chenxiao Zhang , Xin Pan , Xing Liu , Hongchang Shi , Yadong Li","doi":"10.1016/j.jcsr.2025.110171","DOIUrl":"10.1016/j.jcsr.2025.110171","url":null,"abstract":"<div><div>This study investigates the three-dimensional welding residual stresses (WRS) distribution in a 150 mm-thick joint between ZG300–500H cast steel and Q345R vessel steel. A novel hybrid measurement method combining local material removal and hole-drilling was developed to capture internal stress profiles, and results were used to validate the thermo-elasto-plastic finite element simulations incorporating bead grouping and calibrated heat input. The results reveal that surface peak longitudinal and transverse WRSs (LWRS and TWRS) reached 539–566 MPa and 340–444 MPa near the weld centerline, exceeding the yield strength of both base metals. Distinct through-thickness patterns were observed: LWRS followed a “Σ”-shaped distribution with tensile peaks near the surfaces and mid-plane, while TWRS showed a “C”-shaped profile with mid-thickness compression. WRS were more severe on the ZG300–500H side due to stronger thermal restraint and higher thermal strain mismatch. Simulation results reproduced the layer-wise evolution of WRSs, revealing stable high-tensile LWRS, moderate TWRS gradients, and relatively low vertical WRS (±200 MPa). This integrated experimental–numerical framework provides new insights into WRS formation in ultra-thick dissimilar-metal welds and offers a robust tool for structural integrity assessment of heavy welded components.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"238 ","pages":"Article 110171"},"PeriodicalIF":4.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145736009","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

Fatigue experiments and assessment of structural steel unequal thickness butt-welded joints by means of local approaches 基于局部方法的结构钢等厚对接焊接接头疲劳试验与评价

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2026-03-01 Epub Date: 2025-12-08 DOI: 10.1016/j.jcsr.2025.110159

Wei Song , Zhongmin Xiao , Guangtao Zhou , Duanhu Shi , Jian Sun , Xiaojian Shi , Shoupan Wei , Filippo Berto

{"title":"Fatigue experiments and assessment of structural steel unequal thickness butt-welded joints by means of local approaches","authors":"Wei Song , Zhongmin Xiao , Guangtao Zhou , Duanhu Shi , Jian Sun , Xiaojian Shi , Shoupan Wei , Filippo Berto","doi":"10.1016/j.jcsr.2025.110159","DOIUrl":"10.1016/j.jcsr.2025.110159","url":null,"abstract":"<div><div>This study examines the fatigue failure behavior of Unequal Thickness Butt Welded Joint (UT-BWJ) in structural steel applications for construction machinery. The research combines experimental fatigue testing with Finite Element Analysis (FEA) to evaluate UT-BWJs using both structural and local assessment methodologies. Three distinct configurations of longitudinal load-carrying BWJs were analyzed to quantify their fatigue strength under cyclic tensile loading conditions. The investigation systematically evaluates the fatigue characteristics of UT-BWJs through comprehensive local and structural assessment approaches. The obtained fatigue strength was benchmarked against international standard codes and existing reference data. Additionally, multiple three-dimensional Finite Element (FE) models were established to simulate UT-BWJs with backing bars. The relationship between critical geometric parameters and fatigue performance was identified, and the fatigue loading capacity of these welded joints was evaluated by means of nominal stress, structural, and local approaches. Results indicate that fatigue life can be predicted using Strain Energy Density (SED) theory, and analytical solutions for predicting fatigue characteristics in UT-BWJs were proposed, demonstrating the accuracy of the estimation model. The results provide valuable insights for fatigue strength and design optimization of unequal thickness welded connections in structural applications.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"238 ","pages":"Article 110159"},"PeriodicalIF":4.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145693231","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

Feasibility analysis of harnessing the sequentially monostable snap-through instability mechanism for developing self-centering energy-dissipating mechanical metamaterials 利用序贯单稳态瞬时失稳机制开发自定心耗能机械超材料的可行性分析

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2026-03-01 Epub Date: 2025-12-31 DOI: 10.1016/j.jcsr.2025.110215

Kaihao Zhang , Canxing Qiu , Xiuli Du , Hang Liu

{"title":"Feasibility analysis of harnessing the sequentially monostable snap-through instability mechanism for developing self-centering energy-dissipating mechanical metamaterials","authors":"Kaihao Zhang , Canxing Qiu , Xiuli Du , Hang Liu","doi":"10.1016/j.jcsr.2025.110215","DOIUrl":"10.1016/j.jcsr.2025.110215","url":null,"abstract":"<div><div>A new type of self-centering energy-dissipating (SCED) device, i.e., the mechanical metamaterial that consists of a series of curved beams, is introduced in this work. As the theoretical foundation, the elastic snap-through instability theory of a single curved beam is first described. After that, the theory is extended for analyzing the sequentially monostable snap-through instability of the mechanical metamaterial and accordingly, a piecewise model is developed. The developed model is used for parametric analysis and design guidelines. In particular, the inelastic yet monostable snap-through instability is discussed, which well enriches the selection ranges of key design parameters for mechanical metamaterials. Besides, comprehensive finite-element numerical simulations are conducted, with the aim to visibly observe the global deformation process and local buckling behavior. To cater to the high strength demands towards seismic applications, the high-strength steel is suggested as the base material of the mechanical metamaterial. According to the theoretical analysis and numerical simulation, the new SCED could achieve desirable strength capacity required by earthquake engineering. Hence, this paper confirms the feasibility of harnessing the sequentially monostable snap-through instability mechanism for developing SCED devices.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"238 ","pages":"Article 110215"},"PeriodicalIF":4.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145881008","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

Thread-bolt interaction in spherical shells under tension: Failure mechanisms and theoretical prediction 张力作用下球壳螺纹-螺栓相互作用：破坏机制及理论预测

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2026-03-01 Epub Date: 2025-12-22 DOI: 10.1016/j.jcsr.2025.110208

Mei Liu , Youkun Sun , Shaobin Yu , Peijun Wang , Yuedong Wang

{"title":"Thread-bolt interaction in spherical shells under tension: Failure mechanisms and theoretical prediction","authors":"Mei Liu , Youkun Sun , Shaobin Yu , Peijun Wang , Yuedong Wang","doi":"10.1016/j.jcsr.2025.110208","DOIUrl":"10.1016/j.jcsr.2025.110208","url":null,"abstract":"<div><div>This study investigates bolt-threaded hole interaction mechanisms affecting tensile performance in spherical shell-bolt connections and proposes corresponding prediction methods. A validated finite element (FE) model benchmarked against joint tests simplifies the connection for parametric analysis. Key parameters—shell thickness, bolt diameter, spherical diameter, and material strength—govern failure modes, tensile behavior, and thread axial load distribution, while comparative studies assess spherical versus plate connections and shell deformation effects. Three failure modes occur: partial thread shear with significant shell deformation (Mode I), overall thread shear (Mode II), and bolt fracture (Mode III). Increasing shell thickness or decreasing bolt diameter causes sequential transitions in failure modes from Mode I to III and converts thread axial load distribution from a convex parabolic pattern (characterized by load concentration on inner-surface-near threads) to a linear pattern (enabling near-uniform load sharing). Tensile capacity shows near-linear relationships with shell thickness or bolt diameter under thread shear failure but depends on bolt specifications under bolt fracture. Spherical connections demonstrate higher yield loads than plate connections, while shell deformation primarily affects ultimate loads. The load differential progressively decreases with increasing shell thickness or decreasing bolt diameter. A developed theory accounting for shell deformation accurately predicts thread load distribution and connection performance. This method improves yield capacity assessment accuracy by 15 % compared to approaches neglecting deformation. The average FE-to-theoretical ratios are 1.03 for yield load and 0.97 for ultimate load.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"238 ","pages":"Article 110208"},"PeriodicalIF":4.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145837559","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

Experimental study on square compound concrete-filled stainless steel tubes under axial compression 轴压作用下方形不锈钢复合管混凝土的试验研究

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2026-03-01 Epub Date: 2025-12-23 DOI: 10.1016/j.jcsr.2025.110210

James Hay , Jing-Pu Tang , Fangying Wang , David Hernández-Figueirido , Madhup Pandey , Bo Wu

{"title":"Experimental study on square compound concrete-filled stainless steel tubes under axial compression","authors":"James Hay , Jing-Pu Tang , Fangying Wang , David Hernández-Figueirido , Madhup Pandey , Bo Wu","doi":"10.1016/j.jcsr.2025.110210","DOIUrl":"10.1016/j.jcsr.2025.110210","url":null,"abstract":"<div><div>Compound concrete is produced by mixing fresh concrete with demolished concrete lumps. This study focuses on compound concrete-filled stainless steel tubular (CCFSST) sections, for which experimental data are scant. A comprehensive experimental investigation looking into the axial compressive behaviour of square CCFSST sections is presented in this paper. A total of 17 specimens was tested under uniform axial compression, and detailed observations from the tests are reported. The experimental failure loads were used to assess the applicability of existing design provisions for composite members specified in Eurocode 4 (EC4), the American Specification (AISC 360–22), and Han's method to the studied CCFSST cross-sections. The results indicate that the existing design provisions produce conservative and highly scattered capacity predictions, with EC4 and AISC 360–22 exhibiting particularly pronounced conservatism. Modifications to EC4 have been proposed by incorporating the Continuous Strength Method (CSM) to account for the strain hardening behaviour of the stainless steel tubes. Overall, the modified design provisions demonstrated enhanced accuracy and reduced conservatism for the design of studied CCFSST cross-sections.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"238 ","pages":"Article 110210"},"PeriodicalIF":4.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145837560","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

Weld design for large ꞵ-ratio CHS X-connections. I: Experiments and finite element model validation 焊接设计适用于大ꞵ比CHS x连接。1：实验与有限元模型验证

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2026-03-01 Epub Date: 2025-12-20 DOI: 10.1016/j.jcsr.2025.110188

Benjamin R.W. Newcomb, Kyle Tousignant

{"title":"Weld design for large ꞵ-ratio CHS X-connections. I: Experiments and finite element model validation","authors":"Benjamin R.W. Newcomb, Kyle Tousignant","doi":"10.1016/j.jcsr.2025.110188","DOIUrl":"10.1016/j.jcsr.2025.110188","url":null,"abstract":"<div><div>An experimental testing programme is presented on 12 weld-critical circular hollow section (CHS) X-connections, with partial joint penetration (PJP)-groove welds and large branch-to-chord diameter, <em>β</em>-, ratios (i.e., 0.50 < <em>β</em> ≤ 1.00). Weld effective length phenomenon is studied using load-displacement histories, weld fracture loads, and strain distributions. The effective length and ultimate strength predictions from CSA W59:24 are evaluated, and finite element (FE) models are developed using measured geometries and constitutive properties with post-ultimate behaviour. Three micromechanics-based criteria for predicting weld fracture are assessed (by comparison of the FE-predicted weld fracture loads to those from the tests) and one criterion is selected for an FE parametric study. The results of this research establish: (i) a clear need to revise the weld effective length rules in CSA W59:24 to cover CHS X-connections with large <em>β</em>-ratios; and (ii) a validated FE modelling approach by which test data can be extended. An FE parametric study, evaluation of “end effects”, and proposed revision(s) to CSA W59:24 are presented in a companion paper.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"238 ","pages":"Article 110188"},"PeriodicalIF":4.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145788350","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

Integrated optimization of base-isolated steel frame with semi-rigid connections 半刚性连接基础隔震钢框架的整体优化

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2026-03-01 Epub Date: 2025-12-13 DOI: 10.1016/j.jcsr.2025.110170

Haidong He , Zhan Wang , Jianrong Pan , Tulong Yin

引用次数: 0

Analysis of bond performance between square hollow steel tubes and UHTCC interfaces 方空心钢管与UHTCC界面粘结性能分析

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2026-03-01 Epub Date: 2025-12-30 DOI: 10.1016/j.jcsr.2025.110205

Bing Wang , Ze-Long Sun , Qing-Xin Ren , Yuan-Hong Zhu , Jia-Hui Wang

{"title":"Analysis of bond performance between square hollow steel tubes and UHTCC interfaces","authors":"Bing Wang , Ze-Long Sun , Qing-Xin Ren , Yuan-Hong Zhu , Jia-Hui Wang","doi":"10.1016/j.jcsr.2025.110205","DOIUrl":"10.1016/j.jcsr.2025.110205","url":null,"abstract":"<div><div>This study investigates the bond performance at the interface between square hollow steel tubes and ultra-high-toughness cementitious composites (UHTCC). Specimens with varying slenderness and width-to-thickness ratios were evaluated using push-out tests. The study analyses damage patterns, longitudinal strain distribution curves, load–slip curves, bonding mechanisms, interfacial bond strength distribution, and microstructure. The results indicate that bond-slip failure occurs at the bonding interface of the steel tube and UHTCC. Strain curve demonstrates an exponential decrease along the length of the specimen, and the load–slip curve reveals the stages of bonding, slip, and friction. The bond strength initially increases and subsequently decreases as the slenderness ratio increases. Conversely, it decreases as the width-to-thickness ratio increases. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) were utilised to investigate microstructure. A finite element model was constructed for the composite structure, in which the stress distribution patterns and load–slip behaviour of the steel tube exhibited strong consistency with the test results. A bond strength distribution equation for the interface was derived, along with fitting equations with respect to bond strength and load. To extend the findings, a finite element model was constructed under linear elasticity to investigate interfacial changes. This study provides a solid theoretical foundation for designing square hollow steel tube–UHTCC composite structures.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"238 ","pages":"Article 110205"},"PeriodicalIF":4.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145881069","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

Ultra-low-cycle-fatigue prediction of LY225 steel using an improved Lode parameter enhanced cyclic-void-growth-model 基于改进Lode参数增强循环-空洞-生长模型的LY225钢超低周疲劳预测

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2026-03-01 Epub Date: 2025-12-09 DOI: 10.1016/j.jcsr.2025.110165

Xuewei Huang, Yihao Shen, Zeru Liu, Jun Zhao, Xu Zhang

{"title":"Ultra-low-cycle-fatigue prediction of LY225 steel using an improved Lode parameter enhanced cyclic-void-growth-model","authors":"Xuewei Huang, Yihao Shen, Zeru Liu, Jun Zhao, Xu Zhang","doi":"10.1016/j.jcsr.2025.110165","DOIUrl":"10.1016/j.jcsr.2025.110165","url":null,"abstract":"<div><div>This study conducted monotonic tensile and ultra-low-cycle-fatigue tests on LY225 low-yield strength steel under different stress states. Experimental results show that ultra-low cyclic loading yields a higher ultimate load than monotonic tension. The steel exhibits obvious cyclic hardening behavior, which becomes more pronounced with increasing strain amplitude. The notched plate specimens exhibit ductile dimple features under ultra-low cyclic loading. The Lode parameter enhanced cyclic void growth model (LCVGM) was employed to analyze the fracture behavior of the specimens. The model accurately reproduces the fracture response of LY225 steel specimens subjected to monotonic tension, however, it fails to accurately predict the ultra-low-cycle-fatigue life under constant-amplitude symmetric loading. To address this limitation, an improved Lode parameter enhanced cyclic void growth model (ILCVGM) was developed by modifying the damage evolution law in the LCVGM, which could better capture damage evolution under large compressive strains. The ILCVGM parameters were calibrated using ultra-low-cycle-fatigue test data of LY225 steel, followed by a comparative analysis of void evolution mechanisms in the ILCVGM and LCVGM. The ILCVGM was applied to simulate ultra-low-cycle-fatigue failure of LY225 steel notched plate specimens under different loading protocols. The predicted fatigue life closely matches the experimental data, validating the effectiveness of the ILCVGM in predicting and analyzing ultra-low-cycle-fatigue fracture.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"238 ","pages":"Article 110165"},"PeriodicalIF":4.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145735551","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