Query：
学者姓名：颜学渊
Refining：
Year
Type
Indexed by
Source
Complex
Former Name
Co-
Language
Clean All
Abstract ：
Although the concrete-filled double-skin steel tubular (CFDST) columns have received attention in numerous studies, their mechanical properties remain to be further improved. In this paper, CFDST columns were strengthened with steel strips. The axial compression performance of a new type of multi-cavity concrete-filled double-skin steel tube short column was studied through experiments and numerical simulations. This type of column consists of two concentric square steel tubes, a sandwich strip connecting the inner and outer steel tubes, and an inner steel tube strip located on the inner wall of the inner steel tube. A total of 20 short columns were subjected to axial compression, with the main variables being the hollow ratio, height of the inner steel tube strip, concrete strength, and width-to-thickness ratio of the outer steel tube. Based on the test results, the applicability of the finite element model was verified, and extensive parametric analyses were conducted. The results from both the experiments and parametric analyses indicate adding inner steel tube strips can further decrease the degree of local buckling in the steel tubes. Moreover, the heights of the sandwich strip and the inner steel tube strip have a notable influence on the axial compression performance of the new type of short columns. Finally, the experimental and finite element analysis results were used to evaluate the predictive performance of different specification models for the bearing capacity of CFDST, conventional multi-cavity CFDST, and the new type multi-cavity CFDST short columns.
Keyword ：
Axial compression Axial compression Bearing capacity calculation Bearing capacity calculation Experimental study Experimental study Multi-cavity CFDST Multi-cavity CFDST Numerical simulation Numerical simulation
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Yan, Xueyuan , Shi, Shen , Yu, Jitao et al. Experimental and numerical investigation of multi-cavity concrete-filled double-skin steel tubular short column [J]. | JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH , 2025 , 227 . |
| MLA | Yan, Xueyuan et al. "Experimental and numerical investigation of multi-cavity concrete-filled double-skin steel tubular short column" . | JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH 227 (2025) . |
| APA | Yan, Xueyuan , Shi, Shen , Yu, Jitao , Zheng, Xinying , Liu, Jian , Chen, Wenhui . Experimental and numerical investigation of multi-cavity concrete-filled double-skin steel tubular short column . | JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH , 2025 , 227 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
针对现有震害模拟可视化方法建模环节存在的不足,设计一种基于SketchUp草图大师的区域建筑三维建模方法.该方法解决了传统建模方法中过于依赖原始数据和模型维护困难的问题,实现区域建筑建模的灵活性和模型的可维护性.利用OSG三维渲染引擎和Qt框架搭建震害模拟三维动态可视化平台,完成区域建筑震害模拟的三维动态可视化.以福建省福州市台江区某区域为例,对该区域进行三维建筑建模和震害模拟结果的动态可视化展示.结果表明:所提建模方法和平台具有可行性.
Keyword ：
OSG三维渲染引擎 OSG三维渲染引擎 三维动态可视化 三维动态可视化 区域建筑三维建模 区域建筑三维建模 草图大师 草图大师 震害模拟 震害模拟
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 颜学渊 , 郑欣颖 , 刘旭宏 et al. 基于SketchUp和OSG的区域建筑震害模拟三维动态可视化 [J]. | 华侨大学学报（自然科学版） , 2025 , 46 (1) : 38-45 . |
| MLA | 颜学渊 et al. "基于SketchUp和OSG的区域建筑震害模拟三维动态可视化" . | 华侨大学学报（自然科学版） 46 . 1 (2025) : 38-45 . |
| APA | 颜学渊 , 郑欣颖 , 刘旭宏 , 赵瀚彬 . 基于SketchUp和OSG的区域建筑震害模拟三维动态可视化 . | 华侨大学学报（自然科学版） , 2025 , 46 (1) , 38-45 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Combining the characteristics of concrete-filled double-skin steel tube (CFDST), this paper devised a joint construction form featuring low-beam with haunch partially penetrating into the inner layer of steel tube, thus proposing the joint between unequal-depth steel beam with haunch and CFDST column. This paper conducted finite element analysis of this novel joint under low-cycle reversed loading using ABAQUS software. By taking beam height ratio, axial compression ratio, beam-column width ratio, beam flange width-thickness ratio, and beam web height-width ratios as analysis parameters, the seismic performance of the joint was systematically studied. The results indicated that beam height ratio, axial compression ratio, beam-column width ratio, and beam flange width-thickness ratio have a significant impact on the seismic performance of the joint, while the beam web height -width ratios has a minor effect. Furthermore, through the analysis of the force mechanism and internal force derivation of the core area of the joint between unequal-depth steel beam with haunch and CFDST column, a shear bearing capacity calculation method applicable to such connections was established. This calculation method aligns well with the numerical analysis results and can accurately assess the shear bearing capacity of the core area of this type of joints.
Keyword ：
Finite element analysis Finite element analysis Force analysis Force analysis Seismic performance Seismic performance Shear bearing capacity Shear bearing capacity The joint between unequal-depth steel beam The joint between unequal-depth steel beam with haunch and CFDST column with haunch and CFDST column
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Yan, Xueyuan , Li, Anlong , Liu, Xuhong et al. Seismic performance of the joint between unequal-depth steel beam and CFDST column [J]. | JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH , 2024 , 225 . |
| MLA | Yan, Xueyuan et al. "Seismic performance of the joint between unequal-depth steel beam and CFDST column" . | JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH 225 (2024) . |
| APA | Yan, Xueyuan , Li, Anlong , Liu, Xuhong , Wei, Xiaoying , Mao, Huimin . Seismic performance of the joint between unequal-depth steel beam and CFDST column . | JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH , 2024 , 225 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Cow dung possesses potential agricultural and energy value but is often regarded as waste and underutilized in most cases. This wastage of resources not only poses a challenge to agricultural sustainability but also limits economic development in rural areas. Cow dung contains natural cellulose components like cellulose and lignin that are derived and used to prepare fiber materials. This paper explores a potential value-added application of agricultural waste, i.e., cow dung fibers to reinforce the alkali-activated slag composites (AASC), which are fabricated based on an industrial by-product slag. The raw and alkali treated cow dung fibers were characterized using scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDS), atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS), thermo-gravimetric analysis (TGA) and X-ray diffraction (XRD). The porosity, density, water absorption, strength and drying shrinkage of AASC were tested and used to evaluate the effect of alkali treated fibers on the properties of AASC. The results showed that subjecting cow dung fibers to alkali treatment improved their surface roughness and thermal stability. The addition of cow dung fibers led to an augmentation in the splitting tensile strength of AASC, primarily due to the bridging action of these fibers. In particular, the 28-day splitting tensile strength of AASC containing 1 wt% of untreated cow dung fibers increased by 17.1% over the reference sample, and this increase was more pronounced in the alkali treated fiber sample. Moreover, the alkali treatment effectively reduced the effects of loss of compressive strength and increased drying shrinkage caused by fiber incorporation. The findings of this paper are helpful to solve the management problems of cow dung waste, reduce the environmental burden and realize the value utilization of resources.
Keyword ：
Alkali-activated slag composites Alkali-activated slag composites Cow dung fibers Cow dung fibers Microstructure Microstructure Strength Strength Treatment Treatment
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Yang, Zhengxian , Li, Kang , Yan, Xueyuan et al. Characterization and value-added applications of natural cellulose fibers derived from cow dung in cementitious composites [J]. | CELLULOSE , 2024 , 31 (9) : 5575-5589 . |
| MLA | Yang, Zhengxian et al. "Characterization and value-added applications of natural cellulose fibers derived from cow dung in cementitious composites" . | CELLULOSE 31 . 9 (2024) : 5575-5589 . |
| APA | Yang, Zhengxian , Li, Kang , Yan, Xueyuan , Wu, Wenda , Briseghella, Bruno , Marano, Giuseppe Carlo . Characterization and value-added applications of natural cellulose fibers derived from cow dung in cementitious composites . | CELLULOSE , 2024 , 31 (9) , 5575-5589 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
This paper aims to examine the seismic response of prestressed self-centering moment-resisting frames (PSC-MRFs) based on concrete-filled double steel tubular (CFDST) columns and RC beams. The beam of this novel connection is divided into two parts, connected by bolts and tendons, and the beam includes a gap opening feature, which could be regarded as a normal single beam in the field. Cyclic loading analysis was performed on one-story frames with different initial parameters arranged in adjacent bays. Nonlinear dynamic analysis was conducted on a six-story frame under two seismic hazard levels. The cyclic loading analysis showed favorable self-centering performance of the frame even when the hysteretic energy dissipation ratio reached 0.808. Seismic analysis results showed that compared with the in situ reinforced concrete frame, PSC-MRFs generally had similar maximum inter-story drifts under fortification earthquakes, but the residual inter-story drifts were reduced by 33%; under rare earthquakes, the maximum inter-story drifts and residual inter-story drifts of PSC-MRFs were reduced by 22% and more than 90%, respectively. In the adjacent bays on the same story of PSC-MRFs, connections with smaller imminent moments of gap opening opened earlier under earthquake, and the maximum opening angle was larger. The general seismic performance and self-centering of PSC-MRFs was significantly more advantageous than that of in situ reinforced concrete frames.
Keyword ：
CFDST columns CFDST columns dynamic response dynamic response gap opening gap opening hysteretic energy dissipation hysteretic energy dissipation numerical simulation numerical simulation prestress prestress self-centering self-centering
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Yan, Xueyuan , Shi, Shen , Mao, Huimin et al. Seismic Response of Prestressed Self-Centering Moment-Resisting Frames [J]. | BUILDINGS , 2024 , 14 (12) . |
| MLA | Yan, Xueyuan et al. "Seismic Response of Prestressed Self-Centering Moment-Resisting Frames" . | BUILDINGS 14 . 12 (2024) . |
| APA | Yan, Xueyuan , Shi, Shen , Mao, Huimin , Lin, Zhongnan . Seismic Response of Prestressed Self-Centering Moment-Resisting Frames . | BUILDINGS , 2024 , 14 (12) . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
The seismic fragility of prefabricated self-centering frame structures composed of self-centering joints is investigated for reference in their seismic design and application. In this paper, a new design of the concrete-filled double steel tubular column-RC beam joint with self-centering capability and friction energy dissipation was proposed. The joint was modeled with ABAQUS and OpenSees, and hysteretic simulation was carried out to verify the reasonableness and accuracy of the OpenSees phenomenological model. Based on the OpenSees platform, a one-bay, six-story prefabricated self-centering frame structure was modeled, and seismic fragility analysis based on the incremental dynamic analysis was performed, in which seismic fragility curves were obtained according to the probabilistic demand analysis model. The results indicated a high coincidence in hysteretic curves between the ABAQUS model and the OpenSees phenomenological model, which showed favorable self-centering and energy dissipation performance of the joint proposed in this paper. Based on FEMA 356, three kinds of performance points were defined, i.e., "Immediate Occupancy" (IO), "Life Safety" (LS), and "Collapse Prevention" (CP). The prefabricated self-centering frame in this paper tended to exceed the IO, where the stiffness and strength of the structure was susceptible to damage. However, the failure probability at the LS performance level remained low, with only 5% and 37% failure probability under moderate and rare earthquakes, respectively. The structure achieved a collapse margin ratio of 4.28, which indicated a high collapse resistance in it.
Keyword ：
Incremental dynamic analysis Incremental dynamic analysis OpenSees OpenSees Phenomenological joint Phenomenological joint Prefabricated self -centering frame Prefabricated self -centering frame Seismic fragility analysis Seismic fragility analysis
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Yan, Xueyuan , Shi, Shen , Wang, Fengxuan et al. Seismic fragility analysis of prefabricated self-centering frame structure [J]. | JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH , 2024 , 220 . |
| MLA | Yan, Xueyuan et al. "Seismic fragility analysis of prefabricated self-centering frame structure" . | JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH 220 (2024) . |
| APA | Yan, Xueyuan , Shi, Shen , Wang, Fengxuan , Mao, Huimin . Seismic fragility analysis of prefabricated self-centering frame structure . | JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH , 2024 , 220 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
The existing connection between the concrete-filled double steel tubular (CFDST) column and the reinforced concrete (RC) beam is difficult to repair and reuse after damage. In this paper, a self-centering joint between the CFDST column and the RC beam is proposed. The self-centering of the joint is realized by prestressed steel strands, and the energy dissipation is realized by friction. The overall purpose of the research is to analyze the influence of steel strand and friction on the mechanical behavior of the joint. By comparing the envelope curve and the restoring force model of a numerical joint model with theoretical values, accuracy of the numerical model was verified. Then, joints with different parameters, including the friction, prestress of steel strands, and ratio of the resisting moment provided by steel strands to the resisting moment provided by friction in the opening moment of joints, were numerically analyzed. The results showed that the joints with greater friction and prestress of steel strands had higher bearing capacity. Increasing the friction could increase the energy dissipation capacity of the joint, but it would increase the residual deformation of the joint. To reduce residual deformation, the prestress of steel strands should be increased. When the resultant force of the pretension of steel strands was greater than friction, the steel head could be kept pressed on the connecting block, making the stress changes of steel strands and the self-centering performance of the joint stable.
Keyword ：
CFDST column and RC beam joint CFDST column and RC beam joint energy dissipation energy dissipation parametric analysis parametric analysis prestress prestress self-centering self-centering
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Yan, Xueyuan , Shi, Shen , Liu, Xuhong et al. Numerical Analysis of Mechanical Behavior of Self-Centering Joint between CFDST Column and RC Beam [J]. | BUILDINGS , 2023 , 13 (1) . |
| MLA | Yan, Xueyuan et al. "Numerical Analysis of Mechanical Behavior of Self-Centering Joint between CFDST Column and RC Beam" . | BUILDINGS 13 . 1 (2023) . |
| APA | Yan, Xueyuan , Shi, Shen , Liu, Xuhong , Mao, Huimin . Numerical Analysis of Mechanical Behavior of Self-Centering Joint between CFDST Column and RC Beam . | BUILDINGS , 2023 , 13 (1) . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
With the use of seismic isolation techniques on mega-sub structures, several scholars have carried out research on them. However, little research has been carried out on mega-sub isolated structures under multiaxial earthquakes. There have been instances in actual engineering where the peak vertical acceleration exceeded the horizontal direction, and the vertical seismic component will also amplify the dynamic response of the structure in the horizontal direction, so in practice, it is necessary to consider the influence of the vertical component of the earthquake on the structure. To investigate the dynamic response of mega-sub isolated structures under unidirectional earthquake and coupled earthquake, this paper used numerical methods to analyze the influences of the horizontal and vertical damping ratio of the isolation layer, the horizontal and vertical frequency ratio of the main substructure, and the mass ratio of the main substructure on the acceleration and displacement of the main and substructure. The optimum parameter values are finally achieved by analytical calculations, which provide a basis for further optimization and practical design of the structure. Finally, the collision between the main and sub-structures in the mega-sub isolated structure was simulated, and the influences of the peak ground motion, main and subframe spacing, vertical seismic component, and sub-structure height on the collision force and acceleration were analyzed. It was shown that the conflict of the main and sub-structures generates instantaneous, large collision forces, which also instantaneously amplify the acceleration and base shear force response, which should be avoided in practical engineering.
Keyword ：
collision forces collision forces damping ratio damping ratio mass ratio mass ratio mega-sub isolated structure mega-sub isolated structure numerical methods numerical methods
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Xueyuan Yan , Jian Liu , Weiyu Lin et al. Dynamic Response Analysis of Mega-Sub Isolated Structures under Multiaxial Earthquakes [J]. | Applied Sciences , 2023 , 13 (15) . |
| MLA | Xueyuan Yan et al. "Dynamic Response Analysis of Mega-Sub Isolated Structures under Multiaxial Earthquakes" . | Applied Sciences 13 . 15 (2023) . |
| APA | Xueyuan Yan , Jian Liu , Weiyu Lin , Guoguan Lan , Huimin Mao . Dynamic Response Analysis of Mega-Sub Isolated Structures under Multiaxial Earthquakes . | Applied Sciences , 2023 , 13 (15) . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Granite powder (GP) and active mineral admixture including ground granulated blast furnace slag (GGBFS), metakaolin (MK) and fly ash (FA) were used to partially replace granite manufactured sand (GMS) and cement to prepare manufactured sand mortar (MSM). Synergistic effect of four mineral admixtures in MSM on mechanical properties, water absorption properties and chloride permeability was studied. Combined with the analysis of cementitious materials hydration and pore characteristics, the synergistic mechanism of four mineral admixtures was comprehensively expounded. The results show that although the synergy of GP can improve the performance of MSM, the replacement of cement by GGBFS and FA leads to the increase of water absorption and chloride diffusion coefficient and the decrease of mechanical properties. Synergistic effect of GP, GGBFS, FA and MK is greater than that of the three of them due to the complementarity of particle size and chemical composition of the four materials, which ends the situation of MSM performance reduction.
Keyword ：
Chloride permeability Chloride permeability Manufactured sand mortar Manufactured sand mortar Mechanical properties Mechanical properties Mineral admixture Mineral admixture Pore characteristics Pore characteristics Water absorption Water absorption
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Lu, Lin , Yang, Zhengxian , Li, Kang et al. Synergy of inert granite powder and active mineral admixture in manufactured sand mortar: The effect on mechanical properties, chloride permeability and water absorption properties [J]. | CONSTRUCTION AND BUILDING MATERIALS , 2023 , 408 . |
| MLA | Lu, Lin et al. "Synergy of inert granite powder and active mineral admixture in manufactured sand mortar: The effect on mechanical properties, chloride permeability and water absorption properties" . | CONSTRUCTION AND BUILDING MATERIALS 408 (2023) . |
| APA | Lu, Lin , Yang, Zhengxian , Li, Kang , Zhang, Kunchao , Yan, Xueyuan , Marano, Giuseppe Carlo et al. Synergy of inert granite powder and active mineral admixture in manufactured sand mortar: The effect on mechanical properties, chloride permeability and water absorption properties . | CONSTRUCTION AND BUILDING MATERIALS , 2023 , 408 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
The self-centering (SC) pier system exhibits different mechanical behaviors under an earthquake compared with that in quasi-static experiments, especially the impact effect on the rocking interface. Published theoretical analysis and experiments had indicated that the impact events significantly affected the rocking motion, including extra energy dissipation, greater contact stress, and even more serious damage. To describe the impact mechanism more clearly and obtain the impact responses more directly, this study investigates a dynamic theoretical model considering the impact effect and its influences on the seismic responses and rocking interface. First, a dynamic theoretical model based on the Hertz contact-pounding model specific to the SC pier system is proposed, and the impact mechanism is described in detail. Subsequently, dynamic motion equations considering the impact effect are derived. The key parameters of the contact-pounding element (stiffness K-Hertz and damping C-Hertz) that significantly affect the impact process are presented. The accuracy of the proposed theoretical model is verified by test data and a finite element model (FEM). Finally, the influences of the key parameters (K-Hertz and C-Hertz) on the impact force are analyzed, and the impact effect on the rocking interface is investigated. The results indicate that the impact effect significantly increases the vertical acceleration and contact stress, particularly under near-fault earthquakes. This may cause unexpected damage on the rocking interface and should be an important consideration in the optimize design of SC pier system.
Keyword ：
contact-pounding element contact-pounding element dynamic motion equations dynamic motion equations Hertz model Hertz model impact effect impact effect self-centering pier self-centering pier
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Zhang, Pu , Li, Suchao , Zhang, Dongyu et al. Theoretical investigation on the impact effect in dynamic analysis of self-centering pier system based on the Hertz contact-pounding model [J]. | EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS , 2023 , 52 (14) : 4546-4561 . |
| MLA | Zhang, Pu et al. "Theoretical investigation on the impact effect in dynamic analysis of self-centering pier system based on the Hertz contact-pounding model" . | EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS 52 . 14 (2023) : 4546-4561 . |
| APA | Zhang, Pu , Li, Suchao , Zhang, Dongyu , Yan, Xueyuan . Theoretical investigation on the impact effect in dynamic analysis of self-centering pier system based on the Hertz contact-pounding model . | EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS , 2023 , 52 (14) , 4546-4561 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Export
| Results： |
Selected to |
| Format： |
