Query：
学者姓名：吴应雄
Refining：
Year
Type
Indexed by
Source
Complex
Co-
Language
Clean All
Abstract ：
在超高性能混凝土(Ultra-high performance concrete,UH PC)加固修复既有石结构中,UHPC与石材之间良好的粘结性能是保证加固效果的关键.因此,为探究UHPC-石材的界面抗剪性能,通过五组UHPC-石材剪切试验,以石材表面粗糙度(光滑、凿毛、不同键槽深度)为变量,研究了 UH-PC-石材试件破坏模式、荷载-滑移曲线、界面抗剪强度、基体应变等特征.将试验结果与数值模拟结果进行了对比,并提出界面抗剪承载力公式.结果表明:界面键槽处理方式能显著提高UHPC-石材试件界面粘结抗剪强度、改变破坏形态并有效提升试件的延性,当键槽深度为20 mm时,试件表现出较好的界面粘结性能.另外,UHPC与石材基体在弹性变形阶段的应变发展相似,表明两者材料在该阶段具有较好的协调变形能力.通过数值模拟及界面承载力计算公式与试验结果的验证表明,数值模拟的荷载-滑移曲线、界面粘结强度、应力分布等与试验结果表现出良好的一致性;此外,不同键槽形状的参数分析结果表明,当键槽深度为10 mm、20 mm时,正梯形键槽提高了界面抗剪承载力;与现有的界面抗剪承载力公式对比,提出的UHPC-石材界面承载力计算公式能够有效地预测界面抗剪承载力.
Keyword ：
数值模拟 数值模拟 界面处理 界面处理 界面抗剪性能 界面抗剪性能 石材 石材 超高性能混凝土 超高性能混凝土
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 王耀 , 郑新颜 , 黄伟 et al. 超高性能混凝土-花岗岩石材界面的抗剪性能研究 [J]. | 材料导报 , 2025 , 39 (6) : 126-135 . |
| MLA | 王耀 et al. "超高性能混凝土-花岗岩石材界面的抗剪性能研究" . | 材料导报 39 . 6 (2025) : 126-135 . |
| APA | 王耀 , 郑新颜 , 黄伟 , 吴应雄 , 黄雅莹 , 张恒春 et al. 超高性能混凝土-花岗岩石材界面的抗剪性能研究 . | 材料导报 , 2025 , 39 (6) , 126-135 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
福建省沿海地区现存大量石砌体建筑,其石砌体墙采用干砌甩浆的砌筑方式,砂浆饱满度低以及低强度黏土混合砂浆导致石砌体墙抗剪性能差.基于已有超高性能混凝土(UHPC)对整毛石墙灰缝嵌缝加固的成果,提出采用UHPC对整毛石墙灰缝进行点状嵌缝加固,对18 个整毛石墙水平灰缝点状加固试件进行抗剪性能试验,以竖向压应力水平和加固方式为主要研究参数,对比分析加固前后整毛石墙体灰缝的破坏特征和受力机理等.结果表明:与未加固石墙试件相比,UHPC加固后的整毛石墙灰缝抗剪承载力显著提升;在UHPC点状加固平面面积相近的基础上,改变点状UHPC的加固位置和数量对整毛石墙灰缝的抗剪承载力基本没有影响,因此采用两点点状嵌缝的加固方式,施工简单且满足安全要求.
Keyword ：
抗剪性能 抗剪性能 既有整毛石墙体 既有整毛石墙体 点状墙体嵌缝 点状墙体嵌缝 超高性能混凝土 超高性能混凝土
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 翁志英 , 吴应雄 , 许昊 . UHPC灰缝加固整毛石墙体静力试验研究 [J]. | 水利与建筑工程学报 , 2025 , 23 (1) : 48-54,85 . |
| MLA | 翁志英 et al. "UHPC灰缝加固整毛石墙体静力试验研究" . | 水利与建筑工程学报 23 . 1 (2025) : 48-54,85 . |
| APA | 翁志英 , 吴应雄 , 许昊 . UHPC灰缝加固整毛石墙体静力试验研究 . | 水利与建筑工程学报 , 2025 , 23 (1) , 48-54,85 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Ultra-high performance concrete (UHPC) is a promising cementitious engineering material with superior mechanical properties, which is an ideal potential rehabilitation material for stone masonry structures. However, the significant tensile stress generated from the UHPC overlay shrinkage under stone constraint is likely to have an adverse effect on rehabilitation. In this study, the development of workability, mechanical properties and shrinkage behavior of polyformaldehyde-UHPC (POM-UHPC) were investigated. The results showed that the optimum limestone powder content, POM fiber volume, water-binder ratio, and superplasticizer content in UHPC with excellent mechanical properties is about 40 %, 2 %, 0.19, 1.5 %, respectively. The increase of POM fiber volume and the decrease in water-binder ratio are beneficial to the development of mechanical properties while decreasing flowability. The autogenous shrinkage of UHPC is characterized by rapid growth in the early age, which could be mitigated by increasing the levels of water-binder ratio, limestone powder, POM fiber volume, and superplasticizer. The autogenous shrinkage development is positively correlated with the compressive strength. The increment of overlay thickness and stone surface roughness can reduce the constraint shrinkage of UHPC. The analyzed shrinkage-induced interfacial stresses between UHPC and stone increase with the UHPC layer thickness and the stone groove depth.
Keyword ：
Autogenous shrinkage Autogenous shrinkage Constrained shrinkage Constrained shrinkage Interfacial stress Interfacial stress Stone masonry reinforcement Stone masonry reinforcement Ultra-high performance concrete Ultra-high performance concrete
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Huang, Wei , Huang, Yaying , Chen, Xueli et al. Study on the mechanical and shrinkage performance of POM-UHPC for stone masonry structure reinforcement [J]. | JOURNAL OF BUILDING ENGINEERING , 2025 , 107 . |
| MLA | Huang, Wei et al. "Study on the mechanical and shrinkage performance of POM-UHPC for stone masonry structure reinforcement" . | JOURNAL OF BUILDING ENGINEERING 107 (2025) . |
| APA | Huang, Wei , Huang, Yaying , Chen, Xueli , Wu, Yingxiong , Zheng, Xinyan , Zheng, Xiangyu et al. Study on the mechanical and shrinkage performance of POM-UHPC for stone masonry structure reinforcement . | JOURNAL OF BUILDING ENGINEERING , 2025 , 107 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Thick-layer rubber bearings exhibit a more pronounced steel plate constraint effect due to the increased rubber layer thickness. However, current standards only specify the steel plate thickness range for ordinary rubber bearings, without providing dedicated guidelines for thick-layer rubber bearings. Through experimental research and simulation analysis, this study investigates the impact of steel plate thickness on the mechanical performance of thick-layer rubber bearings, refines the relevant theoretical formulas, and develops a predictive model based on the SSA-BP neural network. A thick-layer rubber bearing with a first shape factor of 2.84 was designed, and vertical compression and horizontal shear tests were conducted, complemented by refined numerical simulations. The results reveal that steel plate thickness significantly affects vertical stiffness but has a minimal impact on horizontal stiffness. When the steel plate thickness is 6 mm (thickness ratio 0.4), the vertical stiffness reaches over 80% of its maximum value, while increasing the thickness to 14 mm (thickness ratio 0.93) reduces the change in vertical stiffness to within 5%. Based on upper and lower bound analyses of ultimate stress and yield plasticity ratios, the study recommends that the steel plate thickness should be 1.3 to 1.6 times the rubber thickness, which is a key parameter for optimizing the performance of thick-layer rubber bearings. The developed SSA-BP neural network prediction model for the vertical stiffness of thick-layer rubber bearings demonstrates excellent generalization capability and high predictive accuracy.
Keyword ：
plasticity ratio plasticity ratio SSA-BP neural network SSA-BP neural network steel plate thickness steel plate thickness thick rubber bearing thick rubber bearing vertical stiffness vertical stiffness
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | You, Xiaohan , Lu, Lixing , Wu, Yingxiong . Experimental study on mechanical properties of thick rubber bearings and vertical stiffness prediction using Sparrow search algorithm-back propagation neural network (SSA-BP) model [J]. | ADVANCES IN STRUCTURAL ENGINEERING , 2025 . |
| MLA | You, Xiaohan et al. "Experimental study on mechanical properties of thick rubber bearings and vertical stiffness prediction using Sparrow search algorithm-back propagation neural network (SSA-BP) model" . | ADVANCES IN STRUCTURAL ENGINEERING (2025) . |
| APA | You, Xiaohan , Lu, Lixing , Wu, Yingxiong . Experimental study on mechanical properties of thick rubber bearings and vertical stiffness prediction using Sparrow search algorithm-back propagation neural network (SSA-BP) model . | ADVANCES IN STRUCTURAL ENGINEERING , 2025 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
福建沿海地区现广泛分布着大量具有地域特色的石结构民宅,由于地理位置和经济条件的限制,部分民宅建造于软弱场地之上.目前建筑结构计算时地基通常采用刚性假定,而软土地基上建筑结构在地震作用下破坏更严重,因此亟需对此类石结构进行安全评估.选取一栋典型两层的软土地基石结构(SSI体系),设定地基土体等效剪切波速为147.57m/s,采用有限元软件LS-DYNA进行基于IDA的地震易损性分析,结果与刚性地基体系(FIX体系)进行对比,对其进行安全评估.结果表明:SSI体系较FIX体系更易于达到极限状态,结构地震易损性增加,概率差值可达40％～46％;基于易损性得出结构性能裕度比进行分析,SSI体系较FIX体系各极限状态下的性能裕度比均降低.研究揭示了坐落于软弱场地上的石结构较刚性地基体系破坏更为严重,成果为石结构的抗震加固提供依据.
Keyword ：
地震易损性 地震易损性 增量动力分析 增量动力分析 石结构 石结构 软土地基 软土地基
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 林环周 , 翁志英 , 张静 et al. 软土地基上既有石结构地震易损性分析 [J]. | 工程抗震与加固改造 , 2025 , 47 (1) : 173-183 . |
| MLA | 林环周 et al. "软土地基上既有石结构地震易损性分析" . | 工程抗震与加固改造 47 . 1 (2025) : 173-183 . |
| APA | 林环周 , 翁志英 , 张静 , 何佰昭 , 吴应雄 , 林文佳 . 软土地基上既有石结构地震易损性分析 . | 工程抗震与加固改造 , 2025 , 47 (1) , 173-183 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
既有砖砌体房屋存量巨大,砖砌体墙普遍采用烧结实心标准砖砌筑,相当一部分砖墙厚度为180mm.既有砖砌体结构建造年代久远、设计标准低、砂浆强度低且抗震措施不足,需进行加固以提高抗震性能.超高性能工程用水泥基复合材料(UHP-ECC)是一种高强高韧的加固材料,已应用于砌体结构抗震加固.在此基础上,提出UHP-ECC面层加固180mm厚墙,对2片未加固试件和2片UHP-ECC面层(厚度8mm)加固试件进行拟静力试验和工程应用.试验结果表明:UHP-ECC面层加固能改善墙体破坏模式,使剪切脆性破坏转变为摇摆延性破坏;UHP-ECC面层能有效抑制墙体开裂和破坏,加固后墙体峰值承载力提升104％以上,延性和耗能能力显著提升.工程应用表明:经专家论证该加固方法安全有效,成本合理,不影响原建筑使用功能,UHP-ECC制备方便,人工抹压UHP-ECC面层施工便捷;可为同类工程加固提供借鉴参考.
Keyword ：
UHP-ECC UHP-ECC 抗震性能 抗震性能 拟静力试验 拟静力试验 砖砌体墙 砖砌体墙 面层加固 面层加固
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 张德和 , 商昊江 , 吴应雄 et al. UHP-ECC加固180mm厚砖砌体墙抗震性能试验研究及应用 [J]. | 工程抗震与加固改造 , 2025 , 47 (2) : 166-174 . |
| MLA | 张德和 et al. "UHP-ECC加固180mm厚砖砌体墙抗震性能试验研究及应用" . | 工程抗震与加固改造 47 . 2 (2025) : 166-174 . |
| APA | 张德和 , 商昊江 , 吴应雄 , 陈煦 . UHP-ECC加固180mm厚砖砌体墙抗震性能试验研究及应用 . | 工程抗震与加固改造 , 2025 , 47 (2) , 166-174 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
This study conducts pseudo-static tests on two prefabricated exterior damping joints equipped with steel plate damper connection to investigate the effects of different energy dissipation mechanisms of the steel plate dampers on the mechanical behavior of prefabricated beam-column joints in steel frames. It reports the failure modes, hysteresis curves, skeleton curves, slip curves, and strain development. Additionally, it analyzes the bearing capacity, ductility, energy dissipation capacity, and moment-rotation behavior. The results demonstrated that the prefabricated exterior damping joints with steel plate dampers can develop substantial bearing capacity and energy dissipation. The beams, columns, and joint cores remained undamaged, with damage concentrated in the steel plate dampers. The prefabricated exterior damping joints with bearing energy dissipation steel plates with circular openings (BSDC) failed due to the rupture of the steel plate damper, whereas those with friction energy dissipation steel plates with long slotted openings (FSDC) exhibited pronounced sliding behavior and residual bending deformation in the steel plate dampers. The bearing capacity of FSDC was lower and decreased slightly under large displacements due to the loss of friction coefficient and bolt pretension under cyclic loading. However, the hysteresis curve was more plumped and exhibited relatively stable hysteresis behavior. The bearing capacity of BSDC decreased abruptly with the rupture of the steel plate dampers. The energy dissipation capacity and ductility of FSDC were superior to those of BSDC, with 88% of the energy dissipation consumed by friction steel plate dampers, compared to 67% by bearing steel plate dampers. These findings indicated that energy dissipation concentration is achieved, and the sliding behavior of steel plate dampers is beneficial for enhancing both energy dissipation capacity and deformation capacity. © 2024 Sichuan University. All rights reserved.
Keyword ：
Bending (deformation) Bending (deformation) Compressive strength Compressive strength Damping Damping Ductility Ductility Fracture mechanics Fracture mechanics Friction Friction Hydroelasticity Hydroelasticity Hysteresis Hysteresis Steel beams and girders Steel beams and girders Stress analysis Stress analysis Tribology Tribology
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Liu, Ruyue , Wu, Jianbin , Wu, Yingxiong et al. Experimental Study of the Hysteresis Behavior of Prefabricated Exterior Damping Joints with Steel Plate Dampers [J]. | Advanced Engineering Sciences , 2024 , 56 (6) : 113-123 . |
| MLA | Liu, Ruyue et al. "Experimental Study of the Hysteresis Behavior of Prefabricated Exterior Damping Joints with Steel Plate Dampers" . | Advanced Engineering Sciences 56 . 6 (2024) : 113-123 . |
| APA | Liu, Ruyue , Wu, Jianbin , Wu, Yingxiong , Yan, Guiyun , Wang, Hao . Experimental Study of the Hysteresis Behavior of Prefabricated Exterior Damping Joints with Steel Plate Dampers . | Advanced Engineering Sciences , 2024 , 56 (6) , 113-123 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
In order to characterize the mesoscopic seepage of pore spaces within undisturbed granite residual soil (UGRS). The 2D/ 3D pore models of UGRS were reconstructed using computed tomography (CT) scanning and image processing technology. The lattice Boltzmann method (LBM) was employed to simulate the seepage displacement process and water distribution in UGRS pores through programming. Results indicate that isolated pores have minimal impact on seepage outcomes. Only a few large, straight pores with good connectivity become dominant channels, generating preferential flow. Throughout the seepage process, the maximum velocity in the dominant passage shifts from the inlet to the middle and then to the outlet region. The influence of pore structure characteristics on seepage is more significant than pore proportion. Using industrial CT scanning technology and LBM provides a better description of real soil pore flow. The 2D model intuitively illustrates the preferential flow phenomenon of macropores, suitable for qualitative research. The 3D model, closer to reality, accurately calculates soil permeability, making it suitable for quantitative research. © 2024 Editorial Board of Journal of Basic Science and. All rights reserved.
Keyword ：
3D modeling 3D modeling Computerized tomography Computerized tomography Granite Granite Groundwater flow Groundwater flow Kinetic theory Kinetic theory Numerical methods Numerical methods Pore structure Pore structure Seepage Seepage Soils Soils Water supply systems Water supply systems Wetting Wetting
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Que, Yun , Chen, Xian , Jiang, Guoping et al. Simulation of 2D/3D Mesoscopic Seepage in Undisturbed Granite Residual Soils Based on the LBM [J]. | Journal of Basic Science and Engineering , 2024 , 32 (1) : 193-207 . |
| MLA | Que, Yun et al. "Simulation of 2D/3D Mesoscopic Seepage in Undisturbed Granite Residual Soils Based on the LBM" . | Journal of Basic Science and Engineering 32 . 1 (2024) : 193-207 . |
| APA | Que, Yun , Chen, Xian , Jiang, Guoping , Cai, Peichen , Wu, Yingxiong . Simulation of 2D/3D Mesoscopic Seepage in Undisturbed Granite Residual Soils Based on the LBM . | Journal of Basic Science and Engineering , 2024 , 32 (1) , 193-207 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
There is a lack of detection means for the isolation performance of the buildings built by passive control technology，so it is of great significance to test the dynamic characteristics of the isolated structures on the spot. A 4-story base isolation kindergarten was tested in the field，and the test device，method and results were displayed. The results were compared with the seismic structure model under the same conditions，and the dynamic response law and damping effect of the actual isolation structure were explored. The building was pushed away with hydraulic jack to produce 98 mm（corresponding to LNR500 shear strain 102%）hori-zontal initial displacement of the isolation layer，and concrete jacking rod was installed to support the building；The concrete rod was blasted with explosives and unloaded instantly to make the building vibrate freely；The dynamic response and other parameters were tested and analyzed. The results show that under the condition of horizontal initial displacement，the first-order natural vibration period of the isolated structure is significantly longer than that of the seismic structure，and the damping ratio increases；The hysteretic curve of the isolation layer is full；The dynamic response control effect of each floor is obvious，but the acceleration of the roof floor is slightly amplified compared with that of the bottom floor；After unloading，the isolation layer instantly resets，which shows that the isolation layer has rapid reset performance. © 2024 Nanjing University of Aeronautics an Astronautics. All rights reserved.
Keyword ：
Acceleration Acceleration Concretes Concretes Damping Damping Dynamic response Dynamic response Explosives Explosives Floors Floors Hysteresis Hysteresis Seismology Seismology Shear strain Shear strain Unloading Unloading
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wu, Ying-Xiong , Dong, Xin-Jun , Liao, Wen-Bin et al. Field dynamic characteristics testing of foundation isolation structures under horizontal initial displacement [J]. | Journal of Vibration Engineering , 2024 , 37 (4) : 578-587 . |
| MLA | Wu, Ying-Xiong et al. "Field dynamic characteristics testing of foundation isolation structures under horizontal initial displacement" . | Journal of Vibration Engineering 37 . 4 (2024) : 578-587 . |
| APA | Wu, Ying-Xiong , Dong, Xin-Jun , Liao, Wen-Bin , Lin, You-Qin , Tang, Zhen-Yun , Zheng, Guo-Chen et al. Field dynamic characteristics testing of foundation isolation structures under horizontal initial displacement . | Journal of Vibration Engineering , 2024 , 37 (4) , 578-587 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Concrete filled double-skin tubular structures（CFDST）that reuse waste steel slag demonstrate advantages in sustainable resource use. The interaction and coordination between steel tube and concrete make CFDST an effective solution to the stability issues，considering the expansion characteristic of steel slag. The expansion performance of the steel slag concrete can enhance the bond between the steel tube and its sandwich concrete. This paper presents a series of tests on a steel slag CFDST T-Joint under pseudo-static loading conditions to investigate its seismic performance. Five specimens were tested，including one ordinary concrete test specimen and four steel slag concrete test specimens. The variables tested were concrete type，hollow ratio，diameter ratio，and axial compression ratio. The results show that while the bearing capacity of steel slag concrete specimens is slightly lower than that of ordinary concrete，the displacement ductility and energy dissipation capacity significantly increased，by 69.46% and 48.20% respectively. As the hollow ratio increases from 0.3 to 0.5，the displacement ductility coefficient of the specimen increases by 9.69%. When the diameter ratio of branch main increases from 0.40 to 0.68，the displacement ductility coefficient increases by 82.44%. However，when the axial compression ratio increases from 0.1 to 0.2，the displacement ductility coefficient of the specimen decreases by 17.98%. A finite element model was established to simulate the hysteretic properties of the specimen. The simulation results are in agreement with the test results，verifying the validity of the finite element model. Based on the verified finite model，the parameters of influencing factors on the bearing capacity of the specimen were analyzed，and the optimum hollow ratio of the specimen was found to be about 70%. The use of steel slag greatly improves the seismic performance of the CFDST T-joint and can be widely used in concrete-filled steel tube engineering structures. © 2024 Nanjing University of Aeronautics an Astronautics. All rights reserved.
Keyword ：
Axial compression Axial compression Bearing capacity Bearing capacity Concretes Concretes Concrete testing Concrete testing Ductility Ductility Energy dissipation Energy dissipation Expansion Expansion Finite element method Finite element method Hysteresis Hysteresis Seismic waves Seismic waves Seismology Seismology Slags Slags Tubular steel structures Tubular steel structures
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Zeng, Wu-Hua , Wang, Wei , Chen, Qing-Yi et al. Experimental and analytical studies on seismic performance of a steel slag CFDST T-joint [J]. | Journal of Vibration Engineering , 2024 , 37 (6) : 1023-1032 . |
| MLA | Zeng, Wu-Hua et al. "Experimental and analytical studies on seismic performance of a steel slag CFDST T-joint" . | Journal of Vibration Engineering 37 . 6 (2024) : 1023-1032 . |
| APA | Zeng, Wu-Hua , Wang, Wei , Chen, Qing-Yi , Wang, Jun-Fang , Wu, Ying-Xiong , Zhuo, Wei-Dong . Experimental and analytical studies on seismic performance of a steel slag CFDST T-joint . | Journal of Vibration Engineering , 2024 , 37 (6) , 1023-1032 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Export
| Results： |
Selected to |
| Format： |
