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学者姓名：吴应雄
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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
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| 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 等. "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 . |
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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
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| 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 . |
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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
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| 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 . |
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Due to the long service period and irregularities in construction, a large amount of existing brick masonry structures around the world have been deteriorated in performance, which are in urgent need of reinforcement measures. Ultra-high performance engineered cementitious composite (UHPECC) is a promising material to the rehabilitation of existing brick wall, where, the mechanical properties of interface is essential to the reinforcement. In this study, the bonding behavior of interface between UHPECC and existing brick walls was investigated by double-sided shear test, and the influence of joint depth on shearing performance was analyzed by experiment and numerical simulation. The results show that the interfacial shear strength between UHPECC and existing-brick wall is increased with the increment of UHPECC joint depth. The shearing load-displacement curve generally includes initial stage, elastic stage and plastic stage, where, the specimen H0 only undergoes an elastic stage, H5 has no plastic stage, and the H15 and H25 have comparable load evolution curves. The optimal joint depth for UHPECC reinforced brick wall is 15 mm. The established model is reliable to simulate the interfacial shear performance of UHPECC reinforced brick wall. Due to the redistribution, the shear stress is mainly concentrated near the joint, which is obvious with the increasing of UHPECC joint depth. Based on the experimental and numerical simulation, a relationship of interfacial shear strength and UHPECC joint depth is proposed.
Keyword ：
Brick wall Brick wall Interfacial shear strength Interfacial shear strength Load-displacement curve Load-displacement curve Mortar groove depth Mortar groove depth Stress distribution Stress distribution UHPECC UHPECC
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| GB/T 7714 | Xue, Feixiang , Huang, Wei , Wang, Jialiang et al. Experimental and numerical simulation study on the interfacial shear performance of UHPECC reinforced existing brick wall [J]. | CONSTRUCTION AND BUILDING MATERIALS , 2025 , 477 . |
| MLA | Xue, Feixiang et al. "Experimental and numerical simulation study on the interfacial shear performance of UHPECC reinforced existing brick wall" . | CONSTRUCTION AND BUILDING MATERIALS 477 (2025) . |
| APA | Xue, Feixiang , Huang, Wei , Wang, Jialiang , Wu, Yingxiong , Song, Jiaxin , Zhang, Hengchun et al. Experimental and numerical simulation study on the interfacial shear performance of UHPECC reinforced existing brick wall . | CONSTRUCTION AND BUILDING MATERIALS , 2025 , 477 . |
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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
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| 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 . |
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The negative stiffness damper (NSD) has shown excellent effectiveness in reducing vibration. However, researches focusing on the analysis and optimization of the adjacent structures with negative stiffness damper (ASNSD) under non-stationary seismic excitation (NSSE) and varying soil conditions, remain scarce. This paper proposes a soil-dependent stochastic optimization procedure (SDSOP) to investigate the optimal parameters of ASNSD under NSSE considering firm, medium and soft soil conditions. The novelty of this procedure is it integrates stochastic optimization with non-stationary seismic excitation modeled using the Clough-Penzien spectrum combined with time modulation function, while considering different soil conditions. Firstly, the state-space representations of stochastic seismic excitation and ASNSD are combined to form the representations of the augmented structure-damper-earthquake systems. Subsequently, the optimal designs of ASNSD are defined via the solution of the deferential Lyapunov equation. Lastly, the obtained optimal parameters of ASNSD are further examined under artificially generated seismic excitation real earthquake records from the perspectives of dynamic response. The results demonstrate the effectiveness of the proposed SDSOP and highlight the advantages of ASNSD for all soil conditions. Compared to firm and medium soil conditions, the requirements for negative stiffness and damping values are significantly higher in soft soil conditions.
Keyword ：
Adjacent structures Adjacent structures Negative stiffness Negative stiffness Non-stationary seismic excitation Non-stationary seismic excitation Soil-dependent Soil-dependent
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| GB/T 7714 | Wang, Chaoxian , Zou, Jiyun , Lu, Lixing et al. Stochastic optimal design of adjacent structures with negative stiffness damper under non-stationary seismic excitation considering soil conditions [J]. | STRUCTURES , 2025 , 80 . |
| MLA | Wang, Chaoxian et al. "Stochastic optimal design of adjacent structures with negative stiffness damper under non-stationary seismic excitation considering soil conditions" . | STRUCTURES 80 (2025) . |
| APA | Wang, Chaoxian , Zou, Jiyun , Lu, Lixing , Wu, Yingxiong . Stochastic optimal design of adjacent structures with negative stiffness damper under non-stationary seismic excitation considering soil conditions . | STRUCTURES , 2025 , 80 . |
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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
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| 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 . |
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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
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| 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 . |
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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
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| 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 . |
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In the coastal regions of Fujian,there are a large number of residential buildings constructed from stone,and they exhibits poor seismic resilience.Stone walls are the main load-bearing and lateral force resistant components of stone structures.Strengthening stone walls with UHPC infilled joints can improve the seismic performance of stone structures.To explore the overall seismic performance of stone structures after UHPC infilled joints,this study utilized the LS-DYNA finite element software to establish two distinct models of stone structures: one without reinforcement and another reinforced with UHPC infilled joints.The research aimed to investigate the complete seismic failure process,analyzed the seismic response,failure mechanisms,and performance of the structures. Findings reveal that the stone structure exhibits a 'vertical collapse' failure mode under seismic action.For PGA of 55 gal and 110 gal,the unreinforced structures exhibited minor to complete collapse, whereas the reinforced structures showed conditions ranging from minor damage to moderate destruction.Compared with the unreinforced structure,the fundamental period of the reinforced stone structure is slightly reduced,the peak acceleration of floor has decreased by 21.05% to 25.26%,and the displacement angle was reduced by 74.90% to 94.50%.The infilled joints reinforcement effectively curtailed stone wall cracking,mitigated structural damage,and significantly enhanced reinforcement effectiveness. © 2024 Editorial Board of Journal of Basic Science and Engineering. All rights reserved.
Keyword ：
Acceleration Acceleration Failure (mechanical) Failure (mechanical) Finite element method Finite element method Joints (structural components) Joints (structural components) Reinforcement Reinforcement Seismic waves Seismic waves Walls (structural partitions) Walls (structural partitions)
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| GB/T 7714 | Shi, Weidan , Shi, Jianri , Lin, Huanzhou et al. Seismic Performance Simulation and Analysis of Fujian Typical Stone Structure Reinforced by UHPC Stone Wallinfilled Joints [J]. | Journal of Basic Science and Engineering , 2024 , 32 (3) : 824-838 . |
| MLA | Shi, Weidan et al. "Seismic Performance Simulation and Analysis of Fujian Typical Stone Structure Reinforced by UHPC Stone Wallinfilled Joints" . | Journal of Basic Science and Engineering 32 . 3 (2024) : 824-838 . |
| APA | Shi, Weidan , Shi, Jianri , Lin, Huanzhou , Geng, Li , Ling, Tingting , Wu, Yingxiong et al. Seismic Performance Simulation and Analysis of Fujian Typical Stone Structure Reinforced by UHPC Stone Wallinfilled Joints . | Journal of Basic Science and Engineering , 2024 , 32 (3) , 824-838 . |
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