International Journal of Steel Structures最新文献

Seismic Response of Multi-span Suspension Bridge Under Multi-support Excitation 多支激励下多跨悬索桥的地震反应

IF 1.4 4区工程技术

International Journal of Steel Structures Pub Date : 2026-04-10 DOI: 10.1007/s13296-026-01037-y

Yogesh Chauhan, Chandrasekaran Srinivasan, Tushar Datta, Arvind Jain, Harshal Gohel

{"title":"Seismic Response of Multi-span Suspension Bridge Under Multi-support Excitation","authors":"Yogesh Chauhan, Chandrasekaran Srinivasan, Tushar Datta, Arvind Jain, Harshal Gohel","doi":"10.1007/s13296-026-01037-y","DOIUrl":"10.1007/s13296-026-01037-y","url":null,"abstract":"<div>\u0000 \u0000 <p>This study focuses on the seismic responses of Multi-span Suspension Bridge (MSB) under Multi-Support Excitation (MSE), taking into account incoherence and wave-passage effects. The study conducts a time history analysis of “Cheon-Sa Bridge” to investigate the responses of girder and pylons under three different types of homogenous soil conditions: soft, medium, and firm, with three different apparent wave velocities of 600 m/s, 900 m/s, and 1200 m/s. The responses obtained for different MSE cases are compared with a uniform seismic excitation of recorded earthquake ground motion of El-Centro 1940, Imperial Valley: 180 deg. Results show that MSE significantly affects the longitudinal and vertical responses of MSB. The girder exhibits 3.3 times higher deflections under soft and medium soil MSE cases. The MSE cases significantly increase the girder axial force by about 6 times that of the uniform excitation case. The side pylons exhibit a 30%–38% increase in transverse responses and approximately 10–12 times higher longitudinal responses. It is elucidated that the local site conditions and corresponding acceleration spectral density of bedrock motion significantly influence the response of MSB. Merely considering the wave-passage effect may underestimate the actual response.</p>\u0000 </div>","PeriodicalId":596,"journal":{"name":"International Journal of Steel Structures","volume":"26 2","pages":"329 - 346"},"PeriodicalIF":1.4,"publicationDate":"2026-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147752397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Numerical Investigation on Steel T-stub Connection Considering Prying Action at Elevated Temperatures 考虑高温撬动作用的t型钢短接头数值研究

IF 1.4 4区工程技术

International Journal of Steel Structures Pub Date : 2026-04-10 DOI: 10.1007/s13296-026-01035-0

Viet-Linh Tran, Duc-Xuan Nguyen, Xuan-Hung Vu, Viet-Chuong Ho, Kieu-Vinh Thi Nguyen, Thanh-Tung Thi Nguyen, Duy-Duan Nguyen

{"title":"Numerical Investigation on Steel T-stub Connection Considering Prying Action at Elevated Temperatures","authors":"Viet-Linh Tran, Duc-Xuan Nguyen, Xuan-Hung Vu, Viet-Chuong Ho, Kieu-Vinh Thi Nguyen, Thanh-Tung Thi Nguyen, Duy-Duan Nguyen","doi":"10.1007/s13296-026-01035-0","DOIUrl":"10.1007/s13296-026-01035-0","url":null,"abstract":"<div><p>Bolted endplate connections are widely employed in steel structures to connect beams to columns, since they are easy to fabricate and provide efficient structural performance. The T-stub connection model is commonly used to represent the tension zone components in the bolted endplate connections. Prying action is a crucial factor influencing the overall behavior of the T-stub connection model. Existing design equations consider the effect of prying force on the behavior of the steel T-stub connection model at ambient temperature. However, the material properties, such as the yield strength, ultimate strength, or elastic modulus, decrease, leading to the remarkable loss of stiffness, strength, and potential failure modes of steel connections at high temperatures. Therefore, accurate modelling of T-sub connections, including the prying effect, at elevated temperatures, is crucial to ensure the integrity of the steel structures in a fire. This study investigates the overall behaviors of the steel T-stub connection model affected by prying action at elevated temperatures via the finite element (FE) method, strictly considering nonlinear material, geometric, contact, and friction in modelling. The FE model is validated using the experimental results conducted by others, in which the failure modes are determined by comparing the stress and equivalent strain at the monitor point in the FE models. The prying forces exerted by the endplate are numerically calculated based on the bolt’s forces and the applied load. Finally, a parametric analysis is performed thoroughly to investigate the effect of temperature, bolt diameter, and T-stub section on the behavior of the steel T-stub connection model at elevated temperatures. The results show that temperature and bolt diameter are the most influential parameters in the behavior of the steel T-stub connection model with prying action at elevated temperatures.</p></div>","PeriodicalId":596,"journal":{"name":"International Journal of Steel Structures","volume":"26 2","pages":"311 - 328"},"PeriodicalIF":1.4,"publicationDate":"2026-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147752399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Optimization of Process Parameters for Tungsten Inert Gas Welding of 304L Austenitic Stainless Steel Using Topsis Method 用Topsis法优化304L奥氏体不锈钢钨极惰性气体焊接工艺参数

IF 1.4 4区工程技术

International Journal of Steel Structures Pub Date : 2026-04-09 DOI: 10.1007/s13296-026-01043-0

Nabendu Ghosh, Angshuman Roy

引用次数: 0

Numerical Simulation of Partially-Encased Composite Columns Under Monotonic and Cyclic Loading 单调和循环荷载作用下部分封闭组合柱的数值模拟

IF 1.4 4区工程技术

International Journal of Steel Structures Pub Date : 2026-03-23 DOI: 10.1007/s13296-026-01033-2

Hengli Cai, Wei Wang, Xingyou Yao, Shujun Hu

{"title":"Numerical Simulation of Partially-Encased Composite Columns Under Monotonic and Cyclic Loading","authors":"Hengli Cai, Wei Wang, Xingyou Yao, Shujun Hu","doi":"10.1007/s13296-026-01033-2","DOIUrl":"10.1007/s13296-026-01033-2","url":null,"abstract":"<div><p>This study presents a novel method for developing a finite element (FE) model of partially encased composite (PEC) columns within the ABAQUS/Standard module, alongside a proposed compressive stress–strain relationship specifically for confined concrete. The proposed FE model’s accuracy was corroborated through comparison with existing experimental datasets from both monotonic and cyclic loading tests. Comparative assessments demonstrated that, in contrast to conventional concrete constitutive models, the FE model incorporating the proposed concrete constitutive relation achieved more accurate simulations of PEC column behavior. Additionally, a parametric investigation was performed on PEC columns subjected to cyclic loading to examine the effects of axial compression ratio and structural measures on their seismic performance. The results revealed that the inclusion of transverse links, longitudinal reinforcement, and stirrups effectively enhanced the load-bearing capacity and deformation capacity of the specimens. With an increase in the axial compression ratio, the distance from the most unfavorable section of the specimen to the bottom gradually increased. Under high axial compression ratios, special attention should be paid to the risk of the most unfavorable section shifting into the non-dense region of transverse links, where confinement effectiveness is compromised.</p></div>","PeriodicalId":596,"journal":{"name":"International Journal of Steel Structures","volume":"26 2","pages":"255 - 266"},"PeriodicalIF":1.4,"publicationDate":"2026-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147752417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Dynamic Response Analysis of Corrugated Steel Web Bridges Under Random Bridge Surface Roughness Excitation 随机表面粗糙度激励下波纹钢腹板桥动力响应分析

IF 1.4 4区工程技术

International Journal of Steel Structures Pub Date : 2026-03-23 DOI: 10.1007/s13296-026-01028-z

Ruijiao Zhou, Yan Wang, Huai Chen

{"title":"Dynamic Response Analysis of Corrugated Steel Web Bridges Under Random Bridge Surface Roughness Excitation","authors":"Ruijiao Zhou, Yan Wang, Huai Chen","doi":"10.1007/s13296-026-01028-z","DOIUrl":"10.1007/s13296-026-01028-z","url":null,"abstract":"<div><p>Corrugated steel web girder bridges offer significant advantages in terms of lightweight construction, cost-effectiveness, and enhanced durability, with their dynamic response being a critical factor influencing structural safety and performance under dynamic loading conditions. In this study, to investigate the impact of random road surface roughness on the dynamic response of corrugated steel web girder bridges, ANSYS finite element software and its APDL platform were used to establish a vehicle–bridge coupled model based on a corrugated steel web box girder bridge in China. A code is developed to implement a vehicle–bridge coupled vibration analysis method based on the contact constraint method. The analysis focuses on the dynamic response of the bridge under random excitation from road surface roughness, considering factors such as vehicle speed, vehicle configuration, and bridge surface roughness grade. The results show that the mean values of bridge displacement and bending moment responses are primarily controlled by the vehicle load on the bridge, with the maximum displacement and bending moment values occurring at a vehicle speed of 60 km/h. Moreover, increases in vehicle speed, vehicle load, and bridge surface roughness grade significantly amplify the dispersion of dynamic responses at the bridge mid-span.</p></div>","PeriodicalId":596,"journal":{"name":"International Journal of Steel Structures","volume":"26 2","pages":"209 - 224"},"PeriodicalIF":1.4,"publicationDate":"2026-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147752372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Structural Behaviour of WAAM Stainless Steel EHS Stub Column WAAM不锈钢EHS短柱的结构性能

IF 1.4 4区工程技术

International Journal of Steel Structures Pub Date : 2026-03-17 DOI: 10.1007/s13296-026-01032-3

Laiphrakpam Indrajit Singh, Khwairakpam Sachidananda

{"title":"Structural Behaviour of WAAM Stainless Steel EHS Stub Column","authors":"Laiphrakpam Indrajit Singh, Khwairakpam Sachidananda","doi":"10.1007/s13296-026-01032-3","DOIUrl":"10.1007/s13296-026-01032-3","url":null,"abstract":"<div><p>Wire and Arc Additive Manufacturing (WAAM) is a recently developed metal additive manufacturing technology that enables the optimization of material properties and structural components according to specific construction requirements. In this study, austenitic stainless steel (308LSi) WAAM EHS (elliptical hollow section) stub column under axial compression has been developed using FE Abaqus software. The parametric study of the WAAM EHS have been done by covering various cross-sectional Classes 1–4, varying aspect ratio (<i>a/b</i> i.e. major axis/ minor axis) 1.2–2.77, length taken approximately twice to thrice the major axis diameter (2a) and thickness ranging 3.5–8 mm. Results indicate that ultimate load capacity (<i>P</i><sub><i>u</i></sub>) decreases with increasing aspect ratio, with reduction rates of 6.79–7.82%, 3.92–4.13%, and 5.58–9.62% for aspect ratio increases from 1.2 to 1.67, 1.67 to 2.0, and 2.0 to 2.77, respectively. The FE results were compared against existing stainless steel design standards: EN 1993-1-4 (2023), AISC 370 (2021), and the Continuous Strength Method (CSM) due to lack of design codes specifically for WAAM sections. The CSM demonstrated the highest reliability with a mean FE to capacity prediction ratio of 1.08, while EN 1993-1-4 and AISC 370 yielded conservative predictions with mean ratios of 1.44 and 1.43, respectively. Evaluation of cross-sectional classification systems revealed that EN 1993-1-4 classifications produce overly conservative results for WAAM EHS columns at the current slenderness limit of D<sub>e</sub>/tε<sup>2</sup> = 90, prompting a recommendation for modification. Conversely, the classification criteria in AISC 370 and CSM were found to be satisfactory for WAAM EHS stub columns.</p></div>","PeriodicalId":596,"journal":{"name":"International Journal of Steel Structures","volume":"26 2","pages":"236 - 254"},"PeriodicalIF":1.4,"publicationDate":"2026-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13296-026-01032-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147752400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on the Smoke and Toxic Gas from Vehicle Fires on the Lower Lane of a Double Deck Steel Bridge 双层钢桥下车道车辆火灾产生的烟气和有毒气体研究

IF 1.4 4区工程技术

International Journal of Steel Structures Pub Date : 2026-03-17 DOI: 10.1007/s13296-026-01027-0

Zhenchao Chai, Jun Xu, He Huang, Ya Ni, Jiqiu Qi, Fangchang Shi, Bolong Xu

{"title":"Study on the Smoke and Toxic Gas from Vehicle Fires on the Lower Lane of a Double Deck Steel Bridge","authors":"Zhenchao Chai, Jun Xu, He Huang, Ya Ni, Jiqiu Qi, Fangchang Shi, Bolong Xu","doi":"10.1007/s13296-026-01027-0","DOIUrl":"10.1007/s13296-026-01027-0","url":null,"abstract":"<div>\u0000 \u0000 <p>This study investigates smoke dispersion and toxic gas distribution in lower-deck vehicle fires on double-decker bridges through 27 sets of scaled experiments (1:8 model). Key findings reveal: windless conditions form stable ceiling jets, while crosswinds (> 3.3 m/s inward) disrupt stratification, creating hazardous turbulent smoke layers that reduce visibility to critical levels (e.g., 1.2 m thickness at 200 MW). CO<sub>2</sub> concentrations peak at 0.82% (16 × safe limit), CO reaches 13,352 ppm (267 × threshold), with vertical concentration gradients showing 3 × higher toxicity near upper decks. Gas concentrations scale proportionally with heat release rate (200 MW fires yield 1.5 × 100 MW levels). Most adverse conditions occur at 2 m/s outward and 4.4 m/s inward winds, where flame attachment to structural members exacerbates gas accumulation. The empirical evidence substantiates restricting tanker trucks from lower decks to mitigate catastrophic fire risks.</p>\u0000 </div>","PeriodicalId":596,"journal":{"name":"International Journal of Steel Structures","volume":"26 2","pages":"279 - 288"},"PeriodicalIF":1.4,"publicationDate":"2026-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147752371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Dynamic Response and Failure Mechanism Analysis of a Kiewitt-Type Cable Dome Structure Under Impact Loads 冲击荷载作用下kiewitt型索穹顶结构动力响应及破坏机理分析

IF 1.4 4区工程技术

International Journal of Steel Structures Pub Date : 2026-03-17 DOI: 10.1007/s13296-026-01030-5

Zhanyuan Gao, Chen Lu, Xinhui Li

{"title":"Dynamic Response and Failure Mechanism Analysis of a Kiewitt-Type Cable Dome Structure Under Impact Loads","authors":"Zhanyuan Gao, Chen Lu, Xinhui Li","doi":"10.1007/s13296-026-01030-5","DOIUrl":"10.1007/s13296-026-01030-5","url":null,"abstract":"<div><p>To explore the dynamic response and failure mechanism of a Kiewitt-type cable dome structure under impact loads, a dynamic response analysis method was developed and failure criteria were established. Based on the positional relationship between the rod and the impact point, the cable dome structure is categorized into three distinct zones: the impact zone, non-impact zone 1, and non-impact zone 2. The dynamic response of the structure was analyzed using ANSYS/LS-DYNA software. Based on the analysis results, four failure modes of the structure under impact loads were identified and characterized, and the dynamic responses under each mode were analyzed. Energy absorption functions and corresponding thresholds for different failure modes were established. By analyzing the kinetic energy of the impactor and the energy absorbed by the cable dome structure, the impact failure mechanism was elucidated. Failure modes can be divided into four types: Mode 1 (non-failure), Mode 2 (local instability), Mode 3 (local failure), and Mode 4 (complete failure). In Modes 1, 2, and 3, the largest increases in internal force were observed in the inner diagonal cables, while the smallest increases were in the outer diagonal cables. In mode 4, the largest increases in internal force occurred in the outer loop cables. During the natural vibration process, the displacement of the nodes in the impact zone reached their maximized value and then gradually transferred to both non-impact zones. The transformation of kinetic energy into strain energy in the structure was related to the duration of the impact; a longer impact time resulted in more complete energy transformation. Finally, based on the analysis results, suggestions were made for the impact resistance design of a Kiewitt-type cable dome structure. The results demonstrate that the failure mode of the structure can be predicted from the amount of energy absorbed by the structure.</p></div>","PeriodicalId":596,"journal":{"name":"International Journal of Steel Structures","volume":"26 2","pages":"225 - 235"},"PeriodicalIF":1.4,"publicationDate":"2026-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147752398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 Investigation into the Hysteretic Performance of a Novel Shear Wall made of Two Incline-Slotted Steel Plates Connected by High-Strength Steel Bolts 高强钢螺栓连接两斜槽钢板新型剪力墙滞回性能试验研究

IF 1.4 4区工程技术

International Journal of Steel Structures Pub Date : 2026-03-15 DOI: 10.1007/s13296-026-01031-4

Mohammad Akram Faizy, Seyed Bahram Beheshti-Aval

{"title":"Experimental Investigation into the Hysteretic Performance of a Novel Shear Wall made of Two Incline-Slotted Steel Plates Connected by High-Strength Steel Bolts","authors":"Mohammad Akram Faizy, Seyed Bahram Beheshti-Aval","doi":"10.1007/s13296-026-01031-4","DOIUrl":"10.1007/s13296-026-01031-4","url":null,"abstract":"<div><p>Energy dissipation capacity is a critical parameter in seismic design, reflecting a structure’s ability to absorb and dissipate energy under earthquake or dynamic loads. In steel structures, this parameter plays a vital role in maintaining structural integrity and ensuring safety. This study introduces a novel slotted steel plate shear wall (S-SPSW) system, comprising two inclined slotted infill plates (ISIPs) connected by high-strength steel bolts. The configuration of the infill plates is designed such that, under cyclic loading, one side of the wall experiences tensile forces while the opposite side undergoes compressive forces simultaneously. To evaluate the hysteretic performance of the proposed system, two one-third scale SPSW specimens were fabricated and subjected to quasi-static cyclic loading tests. Key performance indicators, including hysteretic behavior, shear capacity, and energy dissipation capacity, were experimentally assessed. The results demonstrate that the S-SPSW system enhances energy dissipation capacity by approximately 15.66% compared to conventional SPSW systems, highlighting its potential as a system that is capable of effectively resisting lateral loads in seismic applications.</p></div>","PeriodicalId":596,"journal":{"name":"International Journal of Steel Structures","volume":"26 2","pages":"289 - 301"},"PeriodicalIF":1.4,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147752391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 Modification Method for Scaling Blast Loaded Steel Plate Tests Based on Nonlinear Dynamic Analysis 基于非线性动力分析的结垢爆破钢板试验修正新方法

IF 1.4 4区工程技术

International Journal of Steel Structures Pub Date : 2026-02-25 DOI: 10.1007/s13296-026-01025-2

Hani Mahdavi Talaromi, Gholamreza Abdollahzadeh

{"title":"New Modification Method for Scaling Blast Loaded Steel Plate Tests Based on Nonlinear Dynamic Analysis","authors":"Hani Mahdavi Talaromi, Gholamreza Abdollahzadeh","doi":"10.1007/s13296-026-01025-2","DOIUrl":"10.1007/s13296-026-01025-2","url":null,"abstract":"<div><p>Experimental tests can provide the most reliable and accurate results for any problem such as blast loading on structures But in some cases it is very costly, risky, and in some cases impossible. Using small-scale models is one of the best alternatives in such cases, but the dynamic response of scaled structures under blast loads often deviates from classical similarity laws, particularly for strain-rate-sensitive materials. To address these discrepancies, it is essential to modify scaling laws, ensuring that they accurately reflect the behavior of structure. In This study Based on classical nonlinear dynamic analysis method, a new formula has been proposed to solve the scaling deviation. By effectively modifying the applied impulse through an explicit formula, the approach significantly enhances the predictive accuracy of prototype model responses derived from scaled experiments. The results validate the importance of considering strain rate sensitivity and highlight the limitations of traditional scaling methods. Accuracy of the formula was verified by numerical simulation and investigated for maximum and permanent plate’s deflection. The new modification method gives better results for maximum deflection rather than permanent deflection. Results showed that the proposed formula can accurately predict the response of the prototype from the results of the scaled model.</p></div>","PeriodicalId":596,"journal":{"name":"International Journal of Steel Structures","volume":"26 2","pages":"197 - 208"},"PeriodicalIF":1.4,"publicationDate":"2026-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147752418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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