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学者姓名：吴应雄
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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
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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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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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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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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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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 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 . |
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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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为制备适用于砖墙体面层加固的水泥基复合材料,降低其成本同时保证其力学性能,采用一种高性能纤维增强水泥基复合材料(HP-FRCC)用于砖墙体面加固,进而对HP-FRCC的流动度和力学强度进行研究分析,采用跳桌测试法及抗压抗拉测试,分析不同水胶比、减水剂、石灰石粉、聚甲醛POM纤维掺量制备的HP-FRCC的流动性能和力学性能.结果表明:增大水胶比以及石灰石粉掺量能够改善流动性能,而纤维掺量的增大会导致流动度的降低.当POM纤维掺量为2.5％,石灰石粉掺量为35％～40％时,HP-FRCC力学性能最优,而随着水胶比的提高,力学性能下降,拉伸延性呈现先增后降的趋势.POM纤维与HP-FRCC基体之间存在较强的粘结力,纤维的存在促进抗拉强度以及延性的提高.减水剂掺量为2.0％时强度、拉伸延性最小但流动性能最佳.
Keyword ：
力学性能 力学性能 流动性能 流动性能 纤维增强水泥基复合材料 纤维增强水泥基复合材料 配合比 配合比
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| GB/T 7714 | 翁志英 , 胡海楠 , 耿丽 et al. 考虑材料组分影响因素的HP-FRCC流动性能及力学性能 [J]. | 水利与建筑工程学报 , 2024 , 22 (5) : 125-133 . |
| MLA | 翁志英 et al. "考虑材料组分影响因素的HP-FRCC流动性能及力学性能" . | 水利与建筑工程学报 22 . 5 (2024) : 125-133 . |
| APA | 翁志英 , 胡海楠 , 耿丽 , 曹悫 , 吴应雄 . 考虑材料组分影响因素的HP-FRCC流动性能及力学性能 . | 水利与建筑工程学报 , 2024 , 22 (5) , 125-133 . |
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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
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| 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 . |
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为改善既有石结构中石楼板的抗弯性能,避免其发生脆性断裂,提出了采用CFRP板加固技术对石楼板进行抗弯加固,并对未加固的素石板和CFRP板加固后的石楼板进行受弯试验,对比不同厚度及宽度CFRP板对石板受弯性能的影响.结果表明:利用CFRP板加固石板能够显著改善石楼板的最终破坏形态,破坏形式由素石板的脆性断裂转变为CFRP板加固后石板的弯曲破坏,CFRP板加固石板在破坏前具有一定的变形能力;CFRP板能够显著提升石楼板的抗弯承载能力,CFRP板加固石板的极限荷载较素石板提升了 60.15％～128.59％,且CFRP板的加固效果随着CFRP板的厚度及宽度增大而提高;CFRP板能有效阻碍石楼板板底裂缝的产生,提高了石材的极限拉应变,从而增大石楼板的开裂荷载.受拉区石材的极限拉应变随着CFRP板厚度和宽度的增大,提升了 66.92％～187.48％,CFRP板加固石板的开裂荷载较素石板提升了 13.33％～54.07％;通过理论计算,建立了 CFRP板加固石楼板的受弯承载力计算公式,理论计算结果与试验结果符合较好.
Keyword ：
CFRP板 CFRP板 受弯性能 受弯性能 抗弯加固 抗弯加固 石楼板 石楼板 石结构 石结构
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| GB/T 7714 | 张丰宇 , 何佰昭 , 吴应雄 et al. CFRP板加固既有石楼板抗弯性能试验研究 [J]. | 工程力学 , 2024 , 41 (12) : 138-149 . |
| MLA | 张丰宇 et al. "CFRP板加固既有石楼板抗弯性能试验研究" . | 工程力学 41 . 12 (2024) : 138-149 . |
| APA | 张丰宇 , 何佰昭 , 吴应雄 , 金捷 , 陈伟恩 . CFRP板加固既有石楼板抗弯性能试验研究 . | 工程力学 , 2024 , 41 (12) , 138-149 . |
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为研究不同耗能机制的钢板阻尼连接对装配式钢框架梁柱节点力学性能的影响,本文对两个钢板阻尼连接的装配式边柱减震节点试件进行拟静力试验研究,获得试件的破坏模态、滞回曲线、骨架曲线、滑移曲线和应变发展情况,分析试件的承载力、延性、耗能能力、弯矩-转角等性能指标.研究结果表明:钢板阻尼连接的装配式边柱减震节点具有较好的承载性能和耗能性能,在试验过程中未发现梁、柱主体构件及节点核心区破坏现象,可将损伤集中控制于钢板阻尼连接处.耗能钢板圆形开孔的承压型钢板阻尼连接的装配式边柱减震节点(试件BSDC)主要为耗能钢板发生受拉破坏,长圆形开孔的摩擦型钢板阻尼连接的装配式边柱减震节点(试件FSDC)出现明显的滑移行为,在钢板阻尼连接处产生明显的弯曲残余变形.试件FSDC的承载力略低于试件BSDC,且由于往复荷载下的摩擦系数和预紧力损伤,加载后期试件FSDC承载力出现轻微下降,但其滞回曲线较为饱满,滞回行为稳定,而试件BSDC由于耗能钢板断裂导致承载力急剧下降.试件FSDC的耗能能力和延性均优于试件BSDC,摩擦型钢板阻尼连接耗能占比为88％,承压型钢板阻尼连接为67％,实现了集中耗能,钢板阻尼连接处的滑移行为可改善试件的耗能性能和变形能力.
Keyword ：
损伤控制 损伤控制 滑移行为 滑移行为 耗能集中 耗能集中 装配式边柱减震节点 装配式边柱减震节点 钢板阻尼连接 钢板阻尼连接
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| GB/T 7714 | 刘如月 , 吴俭滨 , 吴应雄 et al. 钢板阻尼连接的装配式边柱减震节点滞回性能试验研究 [J]. | 工程科学与技术 , 2024 , 56 (6) : 113-123 . |
| MLA | 刘如月 et al. "钢板阻尼连接的装配式边柱减震节点滞回性能试验研究" . | 工程科学与技术 56 . 6 (2024) : 113-123 . |
| APA | 刘如月 , 吴俭滨 , 吴应雄 , 颜桂云 , 王昊 . 钢板阻尼连接的装配式边柱减震节点滞回性能试验研究 . | 工程科学与技术 , 2024 , 56 (6) , 113-123 . |
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