Query：
学者姓名：杨艳
Refining：
Year
Type
Indexed by
Source
Complex
Co-
Language
Clean All
Abstract ：
Incorporating form stable phase change material (FSPCM) can enhance the thermal storage capacity of concrete. However, it often reduces the mechanical properties of concrete. In this study, we developed an aluminum encapsulated octadecane composite aggregate. The research objective is to enhance both the mechanical and thermal properties of energy storage concrete simultaneously. The results indicate that the compressive strength of energy storage concrete decreases with higher aluminum aggregate content and smaller diameters, while the splitting strength increases. Aluminum aggregate enhances the ductility and thermal conductivity of energy storage concrete, with conductivity increasing proportionally to aluminum content but remaining unaffected by aggregate diameter. When the volume fraction of FSPCM is identical, the aluminum aggregate energy storage concrete exhibits moderate compressive strength but higher latent heat capacity. In addition, thermal energy storage performance tests indicate that the aluminum aggregate energy storage concrete can reduce the heat load of the test unit by approximately 30-40 %. These developed products have the potential for application in phase change energy storage buildings.
Keyword ：
Aluminum aggregate Aluminum aggregate Energy storage concrete Energy storage concrete Latent heat Latent heat Phase change materials Phase change materials Thermal performance Thermal performance
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wei, Jiangang , Zhang, Hanwen , Zhang, Wei et al. Experimental study of thermal and mechanical performance of energy storage concrete using phase change aggregates with aluminum shells [J]. | CONSTRUCTION AND BUILDING MATERIALS , 2025 , 471 . |
| MLA | Wei, Jiangang et al. "Experimental study of thermal and mechanical performance of energy storage concrete using phase change aggregates with aluminum shells" . | CONSTRUCTION AND BUILDING MATERIALS 471 (2025) . |
| APA | Wei, Jiangang , Zhang, Hanwen , Zhang, Wei , Liu, Xiang , Yang, Yan . Experimental study of thermal and mechanical performance of energy storage concrete using phase change aggregates with aluminum shells . | CONSTRUCTION AND BUILDING MATERIALS , 2025 , 471 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
This study developed a machine learning framework to optimize MPCM-integrated concrete for compressive strength and slump. A comprehensive database of 157 experimental datasets was established. Three models (SVM, BPNN, ELM) were evaluated, with ELM showing superior performance (R-2=0.93 for strength, R-2=0.73 for slump). Feature analysis revealed water content as the most influential factor, followed by MPCM dosage and sand content. Experimental results showed adding 40-50 % extra water improved slump but reduced strength by 45 %. Superplasticizer effectiveness plateaued beyond 10 % dosage. Multi-objective optimization using PSO generated practical mix designs meeting target specifications (30 similar to 50 MPa strength, 20 cm slump). Experimental validation confirmed prediction accuracy with less than 5 % deviation. The optimized mixes maximized MPCM content while minimizing cement usage. This data-driven approach provides reliable guidance for sustainable concrete design. Future research will incorporate additional parameters like thermal properties and expand the dataset for broader applicability. The method offers significant potential for energy-efficient construction applications.
Keyword ：
Compressive strength Compressive strength Machine learning Machine learning Microencapsulated phase change materials Microencapsulated phase change materials Multi-objective optimization Multi-objective optimization Slump Slump
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wei, Jiangang , Zhang, Hanwen , Yang, Yan et al. Multi-objective optimization of compressive strength and slump in MPCM-integrated concrete using machine learning [J]. | MATERIALS TODAY COMMUNICATIONS , 2025 , 46 . |
| MLA | Wei, Jiangang et al. "Multi-objective optimization of compressive strength and slump in MPCM-integrated concrete using machine learning" . | MATERIALS TODAY COMMUNICATIONS 46 (2025) . |
| APA | Wei, Jiangang , Zhang, Hanwen , Yang, Yan , Zhang, Wei , Liu, Xiang . Multi-objective optimization of compressive strength and slump in MPCM-integrated concrete using machine learning . | MATERIALS TODAY COMMUNICATIONS , 2025 , 46 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
This study bridges the knowledge gap regarding the eccentric compression behavior of circular ultra-high-strength concrete filled high-strength steel tube (CuFShT) columns. Tests on 12 medium-length CuFShT specimens with varying steel contents and load eccentricities revealed their failure modes, load-deflection responses, and steel strains. Finite element models were developed to analyze the effects of load eccentricity, slenderness ratio, and cross-sectional parameters on the ultimate load-bearing capacity. Calculation methods for the ultimate capacity, including an evaluation of existing design codes, are discussed, and an explicit method for engineering applications is proposed. The results show that an increased steel content enhances the flexural stiffness and load-bearing capacity, whereas a higher eccentricity significantly reduces the load-bearing capacity. The combined influence of the eccentricity and slenderness ratio suggests the need for an overall reduction factor in the design calculations. After normalizing the slenderness, the cross-sectional parameters showed a minimal impact. Among the existing design codes, including AISC 360–16, AIJ-2008, and T/CECS 987–2021, the European standard EN 1994–1–1 provides the most accurate predictions for CuFShT columns. By incorporating the Perry-Robertson formula, the coupled effects of the eccentricity and slenderness ratio were effectively captured, enabling a precise estimation of the ultimate load-bearing capacity for eccentrically-compressed CuFShT columns using the explicit calculation formula. © 2025 The Authors
Keyword ：
Boiler codes Boiler codes Electric codes Electric codes Tubular steel structures Tubular steel structures Ultra-high performance concrete Ultra-high performance concrete
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Luo, Xia , Yu, Xinye , Wei, Jiangang et al. Mechanical response of slender ultra-high-strength concrete filled high-strength steel tube columns under eccentric compression [J]. | Case Studies in Construction Materials , 2025 , 22 . |
| MLA | Luo, Xia et al. "Mechanical response of slender ultra-high-strength concrete filled high-strength steel tube columns under eccentric compression" . | Case Studies in Construction Materials 22 (2025) . |
| APA | Luo, Xia , Yu, Xinye , Wei, Jiangang , Jiang, Chenchen , Yang, Yan . Mechanical response of slender ultra-high-strength concrete filled high-strength steel tube columns under eccentric compression . | Case Studies in Construction Materials , 2025 , 22 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
To investigate the mechanical behavior of ultra-high-strength concrete (UHSC) filled steel tubular (UHSC-FST) lattice columns under eccentric loading, this study conducted experiments on 14 UHSC-FST lattice columns with varying slenderness ratios and eccentricities. Failure modes, load-displacement, load-strain, and lacing tube strain curves were analyzed. Results revealed distinct failure modes: local buckling for columns with a slenderness ratio of 4 and overall buckling for those with a slenderness ratio of 19. As slenderness ratios and eccentricities increased, the elastic stage proportion decreased, while the elasto-plastic stage proportion grew. The lacing tubes in all specimens exhibited low stress, remaining in the elastic stage. A validated finite element model simulated slenderness ratios from 4 to 49, concrete strengths from 30 to 150 MPa, and eccentricities from 0 to 1.5. Simulations showed that at eccentricities above 1 or slenderness ratios >= 39, the influence of concrete strength on ultimate bearing capacity diminished. Interaction between slenderness ratio and eccentricity affected ultimate capacity but was limited. Based on experimental and simulation data, existing methods for calculating stability and ultimate capacity were verified for accuracy. A novel calculation method suitable for UHSC-FST lattice columns was determined, offering high precision, alignment with physical mechanisms, and practicality for engineering applications.
Keyword ：
Calculation method Calculation method Eccentric compression Eccentric compression Lattice column Lattice column Medium-long Columns Medium-long Columns Ultra high strength concrete Ultra high strength concrete
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wei, Jian-Gang , Han, Jin-Peng , Luo, Xia et al. Eccentric compression performance of medium-long ultra-high strength concrete filled steel tubular lattice columns [J]. | STRUCTURES , 2025 , 77 . |
| MLA | Wei, Jian-Gang et al. "Eccentric compression performance of medium-long ultra-high strength concrete filled steel tubular lattice columns" . | STRUCTURES 77 (2025) . |
| APA | Wei, Jian-Gang , Han, Jin-Peng , Luo, Xia , Yang, Yan . Eccentric compression performance of medium-long ultra-high strength concrete filled steel tubular lattice columns . | STRUCTURES , 2025 , 77 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Microcapsule phase change materials (MPCMs) show great potential for building energy conservation, but their multi-scale effects on cement-based materials remain unclear. This study systematically evaluates three MPCMs types: melamine-formaldehyde resin (MF), polymethyl methacrylate (PMMA), and polysiloxane (PSi) encapsulated variants. We assess their impact on cement properties through fluidity tests, compressive strength measurements, nanoindentation, X-ray CT, thermogravimetric analysis, and extreme-environment stability tests. Results show that MPCMs reduce cement paste fluidity, with PMMA and PSi groups dropping to 11.0 cm and 8.2 cm due to surface roughness and agglomeration. The PSi group suffers a 40 % compressive strength loss at 28 days, caused by macro-pores and poor dispersion. Nanoindentation reveals the PMMA group has the lowest elastic modulus. X-CT confirms the highest porosity (5.39 %) in PSi specimens, with more pores exceeding 40 mu m. Under extreme conditions, PSi loses 52.14 % latent heat at high temperatures, whereas the MF group maintains stability with under 10 % total loss. Multi-scale analysis clarifies how MPCMs shell types influence cement properties, providing a foundation for optimizing energy-efficient building applications. Future work should focus on interface modification and long-term performance to improve MPCM-cement composites for engineering use.
Keyword ：
Hydration Hydration Microencapsulated phase change materials Microencapsulated phase change materials Microstructural analysis Microstructural analysis Pore structure Pore structure X-ray tomography X-ray tomography
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wei, Jiangang , Zhang, Hanwen , Yang, Yan et al. Multi-scale study on the influence of different types of phase change microcapsules on the mechanical properties and durability of cement-based materials [J]. | CONSTRUCTION AND BUILDING MATERIALS , 2025 , 494 . |
| MLA | Wei, Jiangang et al. "Multi-scale study on the influence of different types of phase change microcapsules on the mechanical properties and durability of cement-based materials" . | CONSTRUCTION AND BUILDING MATERIALS 494 (2025) . |
| APA | Wei, Jiangang , Zhang, Hanwen , Yang, Yan , Chen, Kangming . Multi-scale study on the influence of different types of phase change microcapsules on the mechanical properties and durability of cement-based materials . | CONSTRUCTION AND BUILDING MATERIALS , 2025 , 494 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
With increasing traffic demands, bridge widening has become a critical strategy for enhancing transport capacity. Calcium sulfoaluminate (CSA)-based ultra-early-strength concrete (UESC), known for its rapid early-age strength development, is increasingly employed in widening projects conducted under uninterrupted traffic. However, the cast-in-place UESC-normal concrete (NC) interface is vulnerable to early-age degradation due to vehicular vibration, and the underlying mechanisms remain unclear. To address this, a series of shear and tensile tests were conducted, supplemented by scanning electron microscopy (SEM) to investigate microcrack evolution at the interface. Results showed that vibration significantly weakened the interfacial bond: under 10 mm highamplitude excitation, shear and tensile strengths decreased by up to 65.34 % and 45.48 %, respectively. In contrast, the influence of frequency was comparatively minor. High-frequency loading induced dense fatiguerelated microcracks in the interfacial transition zone (ITZ), while large amplitudes caused through-thickness fractures and premature instability. SEM observations revealed that fine crack networks gradually evolved into wider penetrating cracks, disrupting mechanical continuity and structural integrity. To overcome limitations in existing design codes, which neglect vibration effects, a predictive model incorporating vibration frequency, amplitude, and material strength was developed. The model achieved prediction errors within +/- 10 % across all tested conditions, outperforming conventional code-based formulations. This model offers a practical tool for early-age interfacial performance assessment and durability optimization in vibration-sensitive bridge widening applications.
Keyword ：
Calcium sulfoaluminate cement (CSA) Calcium sulfoaluminate cement (CSA) Interfacial degradation Interfacial degradation Predictive model Predictive model Ultra-early-strength concrete (UESC) Ultra-early-strength concrete (UESC) Vehicle-induced vibration Vehicle-induced vibration
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wei, Jiangang , Dai, Zichao , Xu, Manji et al. Predictive modeling and experimental assessment of interface strength between UESC and normal concrete under dynamic loading [J]. | STRUCTURES , 2025 , 81 . |
| MLA | Wei, Jiangang et al. "Predictive modeling and experimental assessment of interface strength between UESC and normal concrete under dynamic loading" . | STRUCTURES 81 (2025) . |
| APA | Wei, Jiangang , Dai, Zichao , Xu, Manji , Chen, Kangming , Yang, Yan . Predictive modeling and experimental assessment of interface strength between UESC and normal concrete under dynamic loading . | STRUCTURES , 2025 , 81 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
This paper experimentally and numerically investigates the structural behavior and resistances of ultra-high strength concrete filled high strength steel tube (CuFShT) stub columns subjected to combined compression and bending loads. Initially, twenty CuFShT stub column specimens with a steel ratio ranging 0.14 to 0.38 were tested under various eccentric loads, constructed from steel tubes with a nominal yield stress ranging from 813 to 1153 MPa, concrete with a compressive strength of 146.7 MPa. Experimental investigation includes the examinations of failure mode, failure load and the evolution of the neutral axis for the stub column specimens under combined loading. Additionally, the development and distribution of longitudinal strains, as well as the ratio of circumferential to longitudinal strains in the steel tubes, were discussed. Following the experimental results, a numerical modeling program was implemented. Finite element models were developed and validated against test results, then used for cross-sectional stress analysis to reveal the eccentric compression mechanism of CuFShT stub columns. Finally, test data were used to assess the applicability of design rules outlined in EN 1994-1-1 (EC4), AISC 360-16, AIJ-2008, and T/CECS 987-2021 to CuFShT stub columns under combined loading. The assessment findings suggest that EN 1994-1-1 (EC4) provides accurate predictions without accounting for the second-order effect, while AIJ-2008 yields precise predictions when considering this effect. Notably, there is an enhancement in predictive accuracy observed for each simplified N-M curve, particularly notable in the case of the curve delineated by T/CECS 987-2021, following adjustments to the pure axial compressive strength and pure bending capacity.
Keyword ：
Bearing capacity Bearing capacity Concrete filled steel tube Concrete filled steel tube Eccentric compression Eccentric compression High strength steel High strength steel N-M curve N-M curve Ultra-high strength concrete Ultra-high strength concrete
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Luo, Xia , Yu, Xinye , Wei, Jiangang et al. Structural performance of ultra-high strength concrete filled high strength steel tube stub columns under eccentric loading [J]. | JOURNAL OF BUILDING ENGINEERING , 2024 , 97 . |
| MLA | Luo, Xia et al. "Structural performance of ultra-high strength concrete filled high strength steel tube stub columns under eccentric loading" . | JOURNAL OF BUILDING ENGINEERING 97 (2024) . |
| APA | Luo, Xia , Yu, Xinye , Wei, Jiangang , Li, Cong , Yang, Yan , Qiao, Huiyun et al. Structural performance of ultra-high strength concrete filled high strength steel tube stub columns under eccentric loading . | JOURNAL OF BUILDING ENGINEERING , 2024 , 97 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
This study addresses the current research gap in the mechanical performance of Concrete Filled Steel Tubular (CFST) lattice columns, focusing on high-strength or ultra-high-strength materials. Tests were conducted on six Ultra-High-Strength Concrete (UHSC) filled steel tubular lattice short columns to investigate their axial compression performance. Experimental parameters included core concrete strength and steel tube wall thickness of the CFST limbs. Discussions covered failure modes, load-displacement curves of specimens, load-strain relationships of limb tubes and lacing tubes, and Poisson's ratios of limb tubes. Subsequently, Finite Element Model (FEM) was established using ABAQUS Software and verified by test results. The FEM was employed for further parameter analysis, including the steel tube wall thickness of the limb, the core concrete strength of the limb, the steel tube strength of the limb, and the center distance between the limbs. Finally, existing calculation methods for predicting the ultimate bearing capacity of UHSC-filled steel tubular lattice short columns were evaluated, leading to the proposal of a practical and accurate calculation method based on the findings.
Keyword ：
Axial compression performance Axial compression performance Calculation method Calculation method Concrete filled steel tube Concrete filled steel tube Lattice column Lattice column Ultimate bearing capacity Ultimate bearing capacity Ultra -high -strength concrete Ultra -high -strength concrete
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wei, Jian-Gang , Han, Jin-Peng , Luo, Xia et al. Axial compression performance of ultra-high-strength concrete filled steel tubular lattice short columns [J]. | JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH , 2024 , 216 . |
| MLA | Wei, Jian-Gang et al. "Axial compression performance of ultra-high-strength concrete filled steel tubular lattice short columns" . | JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH 216 (2024) . |
| APA | Wei, Jian-Gang , Han, Jin-Peng , Luo, Xia , Yang, Yan , Li, Cong , Wang, Wen-Rong . Axial compression performance of ultra-high-strength concrete filled steel tubular lattice short columns . | JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH , 2024 , 216 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
To explore the behavior of ultra-high strength concrete filled steel tubular (UHSC-FST) lattice short columns under eccentric compressive loads, experimental analyses on four specimens and 276 finite element models using ABAQUS were conducted. The study focused on the effects of steel tube wall thickness, concrete strength, steel tube strength, and load eccentricity on failure modes, load-displacement curves, and ultimate load-bearing capacity. Results showed that for columns with minor eccentricity-induced compressive failure, the reduction coefficient of ultimate load capacity has a weak correlation with the parameters. However, for columns with significant eccentricity-induced tensile failure, the reduction coefficient increases with steel tube thickness and strength and decreases with concrete strength. The center-to-center distance of the columns has a minor effect. Based on these findings, a comparative analysis of existing standards was conducted, leading to the development of an accurate method for calculating the ultimate load-bearing capacity of eccentric CFST lattice columns. This method is applicable to various cross-sectional dimensions, material strengths, and steel tube wall thicknesses, with calculation errors within 10 %, ensuring it meets engineering precision requirements.
Keyword ：
Bearing capacity Bearing capacity Calculation method Calculation method CFST lattice column CFST lattice column Eccentric compression Eccentric compression Finite element analysis Finite element analysis Ultra-high-strength concrete Ultra-high-strength concrete
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wei, Jian-Gang , Han, Jin-Peng , Luo, Xia et al. Eccentric load capacity of ultra-high strength concrete-filled steel tubular lattice short columns [J]. | STRUCTURES , 2024 , 69 . |
| MLA | Wei, Jian-Gang et al. "Eccentric load capacity of ultra-high strength concrete-filled steel tubular lattice short columns" . | STRUCTURES 69 (2024) . |
| APA | Wei, Jian-Gang , Han, Jin-Peng , Luo, Xia , Yang, Yan , Li, Cong . Eccentric load capacity of ultra-high strength concrete-filled steel tubular lattice short columns . | STRUCTURES , 2024 , 69 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
开展了闽浙编木拱桥燕尾榫节点足尺模型拟静力试验,分析了闽浙编木拱桥与古建筑木结构中燕尾榫节点受力机理的异同,探讨了燕尾榫节点受力模型应用于闽浙编木拱桥燕尾榫节点的适用性;根据力学平衡和变形协调条件,建立了考虑节点拔榫量与榫卯口缝隙的闽浙编木拱桥燕尾榫节点弯矩转角力学模型与计算公式,并通过试验数据和有限元分析验证了闽浙编木拱桥燕尾榫节点力学模型和节点刚度,揭示了转角位移和加载行程对拔榫量的影响和榫卯口缝隙与两端轴力对燕尾榫节点刚度的影响.研究结果表明:弹性阶段闽浙编木拱桥燕尾榫节点滞回耗能能力随两端轴力增加而增大,转角大于0.04 rad时构件进入屈服阶段,挤压变形不能恢复,转角达到0.06 rad时滞回曲线斜率停止增长,加载结束后燕尾榫节点未破坏;由于闽浙编木拱桥与古建筑木结构中燕尾榫节点受力机理不同,古建筑木结构中的燕尾榫节点受力模型不适用于闽浙编木拱桥燕尾榫节点,有限元计算所得闽浙编木拱桥燕尾榫节点弯矩转角与试验结果的误差仅为3.2％,弹性正、负最大弯矩与试验值的误差分别为16.7％与-5.2％,说明建立的弯矩转角力学模型可精准反映出节点在转动过程中的弯矩转角变化规律;拔榫量在弹性阶段主要受转角影响,弹塑性阶段则主要受加载控制位移和加载级数影响;榫卯口缝隙从0.06 mm减小至0.01 mm时,节点刚度从29.46 kN·m·rad-1增加至52.24 kN·m·rad-1,反映了燕尾榫节点刚度随榫卯口缝隙的减小而增大的趋势.综上所述,提出的力学模型可为现存闽浙编木拱桥保护、修缮和全桥结构抗震性能研究提供参考.
Keyword ：
力学性能 力学性能 受力机理 受力机理 弯矩转角力学模型 弯矩转角力学模型 桥梁工程 桥梁工程 燕尾榫节点 燕尾榫节点 节点刚度 节点刚度 闽浙编木拱桥 闽浙编木拱桥
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 杨艳 , 郑裔 , 黄聪燕 et al. 闽浙编木拱桥燕尾榫节点力学模型 [J]. | 交通运输工程学报 , 2024 , 24 (5) : 113-130 . |
| MLA | 杨艳 et al. "闽浙编木拱桥燕尾榫节点力学模型" . | 交通运输工程学报 24 . 5 (2024) : 113-130 . |
| APA | 杨艳 , 郑裔 , 黄聪燕 , 韦建刚 , 吴庆雄 , 陈宝春 . 闽浙编木拱桥燕尾榫节点力学模型 . | 交通运输工程学报 , 2024 , 24 (5) , 113-130 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Export
| Results： |
Selected to |
| Format： |
