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学者姓名：姜绍飞
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Abstract ：
Due to a lack of seismic design, traditional timber structures make their mortise and tenon joints susceptible to seismic action. To date, there are limited mortise and tenon joints strengthening techniques that are efficient and safe. This study proposed a novel assembled hoop of adjustable stiffness to enhance the seismic resilience of joints. To evaluate the efficacy of this reinforcing technique, two 1/2 scaled Chuan-dou timber structural models were designed, namely intact and reinforced models. The comparative analysis of these models was conducted by shaking table tests. Under a seismic intensity of 8.0, the dynamic amplification factor of the reinforced model decreased by 2.9 % compared to the intact model, and the maximum displacement response decreased by 27 %. This indicates that the seismic performance of the reinforced structure was restored to the same level as the intact structure. Additionally, the interstory drift was reduced from 1/33-1/35. This indicates that the proposed reinforcement technique is feasible and effective in the seismic performance and local joints energy dissipation for the Chuan-dou timber structure.
Keyword ：
Assembling hoop Assembling hoop Chuan-dou timber structure Chuan-dou timber structure Reinforcement technology Reinforcement technology Seismic performance Seismic performance Shaking table test Shaking table test
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| GB/T 7714 | Ge, Ziyi , Jiang, Shaofei , Cai, Wangxin et al. Shaking table test on Chuan-dou timber structures reinforced by assembled hoop of adjustable stiffness [J]. | STRUCTURES , 2025 , 76 . |
| MLA | Ge, Ziyi et al. "Shaking table test on Chuan-dou timber structures reinforced by assembled hoop of adjustable stiffness" . | STRUCTURES 76 (2025) . |
| APA | Ge, Ziyi , Jiang, Shaofei , Cai, Wangxin , Song, Hualin , Shen, Sheng . Shaking table test on Chuan-dou timber structures reinforced by assembled hoop of adjustable stiffness . | STRUCTURES , 2025 , 76 . |
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相比于钢筋混凝土(RC)管廊,超高性能混凝土(UHPC)管廊可以减小结构板厚,获得更大使用空间,并可以提升耐久性和使用寿命.为比较两种管廊在受力情况下的损伤机理和破坏模式,以及开裂荷载、刚度、极限承载力和接缝张开量等指标,进行了预应力筋连接UHPC管廊和RC管廊的静力作用下的受力性能试验,并通过有限元模型分析了预应力度对UHPC管廊纵向刚度的影响规律,研究了纵向刚度的简化计算方法.研究结果表明:相较于RC管廊,UHPC管廊的开裂荷载、屈服荷载和极限荷载分别提高了 84％、36％、45.5％;UHPC管廊抗弯刚度大于RC管廊;在达到极限荷载时,UHPC管廊接头竖向错位相较于RC管廊小38.0％,说明UHPC管廊接头性能优于RC管廊,根据有限元分析得到的刚度计算式可为UHPC管廊的设计计算提供依据.
Keyword ：
UHPC UHPC 承载力 承载力 抗弯刚度 抗弯刚度 接头 接头 破坏模式 破坏模式 综合管廊 综合管廊 预应力 预应力
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| GB/T 7714 | 朱三凡 , 胡超 , 夏樟华 et al. 预应力连接UHPC预制拼装管廊受力性能试验研究 [J]. | 应用基础与工程科学学报 , 2025 , 33 (1) : 289-299 . |
| MLA | 朱三凡 et al. "预应力连接UHPC预制拼装管廊受力性能试验研究" . | 应用基础与工程科学学报 33 . 1 (2025) : 289-299 . |
| APA | 朱三凡 , 胡超 , 夏樟华 , 许有胜 , 姜绍飞 . 预应力连接UHPC预制拼装管廊受力性能试验研究 . | 应用基础与工程科学学报 , 2025 , 33 (1) , 289-299 . |
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为了掌握地震作用下古建木结构由细观材料到宏观结构的损伤机理和破坏状态,并对其损伤程度做出全面而合理的评价,提出了古建木结构跨尺度损伤演化分析方法,包括多尺度数值模型和多尺度一致性损伤模型.多尺度数值模型采用多点约束法来协调跨尺度界面变形,能同时描述局部损伤细节和整体力学行为;损伤模型以广义力-广义位移和抗震性能水准理论为基础,通过试验拟合分析来统一各层次损伤.以榫卯节点拟静力试验和多层古建木框架振动台试验为分析对象,详细阐述了跨尺度损伤演化分析方法的过程和结果.通过所提出的多尺度分析方法,可以为既有古建木结构抗震鉴定给出从局部材料、构件到整体结构的各层级评估结果,并揭示其之间的演化规律,为后期加固修复提供科学依据.
Keyword ：
古建筑木结构 古建筑木结构 地震损伤模型 地震损伤模型 有限元仿真分析 有限元仿真分析 跨尺度损伤演化分析 跨尺度损伤演化分析
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| GB/T 7714 | 吴铭昊 , 王永建 , 姜绍飞 . 古建木结构跨尺度地震损伤演化分析方法研究 [J]. | 地震工程与工程振动 , 2025 , 45 (1) : 177-186 . |
| MLA | 吴铭昊 et al. "古建木结构跨尺度地震损伤演化分析方法研究" . | 地震工程与工程振动 45 . 1 (2025) : 177-186 . |
| APA | 吴铭昊 , 王永建 , 姜绍飞 . 古建木结构跨尺度地震损伤演化分析方法研究 . | 地震工程与工程振动 , 2025 , 45 (1) , 177-186 . |
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为了研究柱高比(即为双柱墩中 2根不同高度柱的柱高之比)对非等高RC双柱墩顺桥向弯扭性能的影响,对 2个柱高比不同的非等高RC双柱墩在压弯扭复合受力下进行了拟静力加载试验,得到了双柱墩试件的剪力-位移滞回曲线、扭矩-扭转角滞回曲线以及相应的骨架曲线.基于Abaqus建立了非等高双柱墩的有限元模型,并用试验结果验证了其准确性,随后开展了参数分析,研究柱高比、轴压比和配箍率对弯扭作用下的非等高RC双柱墩顺桥向抗震性能的影响.研究结果表明:柱高比的减小会增大双柱墩顺桥向抗弯承载力,降低了构件的抗扭耗能和抗扭承载力;随着柱高比的减小,扭转效应增强,降低了非等高双柱墩的延性变形能力,且扩大了非等高双柱墩的损伤区域;为避免非等高双柱墩中的矮柱先进入弯剪破坏,建议其柱高比不小于 0.67;轴压比的增大降低了弯扭复合作用下非等高双柱墩的抗弯承载力;增大配箍率可显著提高试件抗扭承载力,对可能受扭的双柱墩可适当增大配箍率.
Keyword ：
弯扭复合作用 弯扭复合作用 抗震性能 抗震性能 有限元分析 有限元分析 柱高比 柱高比 钢筋混凝土非等高双柱墩 钢筋混凝土非等高双柱墩 顺桥向 顺桥向
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| GB/T 7714 | 曾兴贵 , 谢宝雄 , 姜绍飞 . 非等高RC双柱墩顺桥向弯扭性能试验研究及有限元分析 [J]. | 工程力学 , 2025 , 42 (3) : 250-261 . |
| MLA | 曾兴贵 et al. "非等高RC双柱墩顺桥向弯扭性能试验研究及有限元分析" . | 工程力学 42 . 3 (2025) : 250-261 . |
| APA | 曾兴贵 , 谢宝雄 , 姜绍飞 . 非等高RC双柱墩顺桥向弯扭性能试验研究及有限元分析 . | 工程力学 , 2025 , 42 (3) , 250-261 . |
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Underwater pile-pier structures are important components of bridges. Various surface defects occur on these structures due to their complex hydrological environment. Existing methods for the visual detection of such defects have two main issues: (1) Underwater images are blurred, and the colors are severely distorted; (2) the size of defects cannot be quantitatively identified, and the detection efficiency is low. To solve these problems, this paper proposes a method to extract the contours of underwater pile-pier surface defects by combining an image fusion enhancement algorithm with a deep learning model. First, a pixel-level image fusion algorithm based on point sharpness weights is used, which can fuse two single enhanced images as well as significantly improve image contrast while ensuring effective color correction. Second, the DeepLabv3+ semantic segmentation network model is improved in terms of weight, such that the number of weight parameters required for the model can be reduced as much as possible while maintaining the accuracy. Next, an open-source dataset of surface defects in building structures is used to train the backbone feature extraction network layer, and the transfer learning method is applied to the detection task of the object domain. Finally, the image dataset collected from underwater experiments and practical engineering works is used to train the light-weight improved model, establish the underwater pile-pier surface defect contour extraction model, and then verify and test the models. In addition, comparisons focusing on three aspects, namely, comparison with five other commonly used algorithms, comparison of detection results with and without image fusion, and comparison with and without noise effects, are made to verify the robustness and effectiveness of the proposed method. The results show that the image fusion enhancement algorithm proposed in this paper can effectively enhance the detailed features of the defect image contours, and the light-weight improved model has the highest recognition accuracy and can maintain high detection efficiency and robustness. This implies that the proposed method is suitable for the quantitative detection of the surface defect contours of underwater pile-pier structures implanted in small underwater robots for practical bridge structures. © 2024 Chang'an University. All rights reserved.
Keyword ：
Deep learning Deep learning Efficiency Efficiency Extraction Extraction Feature extraction Feature extraction Image enhancement Image enhancement Image fusion Image fusion Learning systems Learning systems Multilayer neural networks Multilayer neural networks Network layers Network layers Object detection Object detection Piers Piers Semantics Semantics Statistical tests Statistical tests
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| GB/T 7714 | Wang, Wei , Jiang, Shao-Fei , Song, Hua-Lin et al. Extracting Surface Defect Contours of Bridge Underwater Pile-pier Structures based on Lightweight Network and Transfer Learning [J]. | China Journal of Highway and Transport , 2024 , 37 (2) : 88-99 . |
| MLA | Wang, Wei et al. "Extracting Surface Defect Contours of Bridge Underwater Pile-pier Structures based on Lightweight Network and Transfer Learning" . | China Journal of Highway and Transport 37 . 2 (2024) : 88-99 . |
| APA | Wang, Wei , Jiang, Shao-Fei , Song, Hua-Lin , Li, Peng-Ze , Wang, Sheng-Xian , Su, Zhcn-Heng . Extracting Surface Defect Contours of Bridge Underwater Pile-pier Structures based on Lightweight Network and Transfer Learning . | China Journal of Highway and Transport , 2024 , 37 (2) , 88-99 . |
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To study the seismic restoring force model of basalt fiber reinforced polymer (BFRP) shell reinforced RC pier columns without drainage, numerical analysis was conducted on the shell reinforced reinforced concrete (RC) pier columns using OpenSees finite element software on the basis of quasi-static tests. The main research parameters were the strength of filled layer concrete, shell thickness, reinforcement height, and axial compression ratio. Results show that the higher the strength level of the filled layer concrete, the stronger the seismic performance of the pier column. However, the seismic performance of the filled layer concrete with a strength level above C40 is relatively similar to that of the pier columns. The seismic performance of pier columns with larger thickness reinforced by formwork is better than that of pier columns with smaller thickness. When the reinforcement height of the formwork is high, the seismic performance of the pier column is good. When the reinforcement height is greater than 2-3 times the plastic hinge height of the original pier columns, the seismic performance improvement effect tends to be stable. The larger the axial compression ratio, the faster the stiffness degradation of the pier column, which is unfavorable for the development of ductility. Then through data regression analysis, a restoring force model for BFRP shell reinforced RC pier columns was established. The comparison shows that the restoring force model fitted well with the experimental curve and could effectively reflect the hysteresis performance of the reinforced pier columns, providing reference for the seismic performance analysis of such structures. © 2024 Chinese Vibration Engineering Society. All rights reserved.
Keyword ：
Columns (structural) Columns (structural) Compression ratio (machinery) Compression ratio (machinery) Convergence of numerical methods Convergence of numerical methods Fiber reinforced concrete Fiber reinforced concrete Fiber reinforced plastics Fiber reinforced plastics Seismic response Seismic response Shells (structures) Shells (structures)
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| GB/T 7714 | Zhang, Jinghang , Xia, Zhanghua , Jiang, Shaofei et al. A restoring force model of RC pier columns reinforced by a BFRP shell without drainage [J]. | Journal of Vibration and Shock , 2024 , 43 (16) : 192-203 . |
| MLA | Zhang, Jinghang et al. "A restoring force model of RC pier columns reinforced by a BFRP shell without drainage" . | Journal of Vibration and Shock 43 . 16 (2024) : 192-203 . |
| APA | Zhang, Jinghang , Xia, Zhanghua , Jiang, Shaofei , Hong, Junxian , Zhu, Pu , Fan, Qian . A restoring force model of RC pier columns reinforced by a BFRP shell without drainage . | Journal of Vibration and Shock , 2024 , 43 (16) , 192-203 . |
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To reveal the evolution law of the pitting of carbon steel in the atmospheric environment,a numerical model of pitting was established on the basis of the electrochemical corrosion mechanism. Meanwhile,it is also coupled with tertiary current distribution,material transfer and deformation geometry multiphysics fields. Based on the validated numerical model,an analysis was conducted by the effects of pH,NaCl concentration and relative humidity (RH)on the pitting rate. Furthermore,the prediction model of pitting rate was established. The results show that the pitting shape changes from conical to hemispherical and ultimately develops into a cylindrical shape. When the pH value is in the range of 6.0 to 7.0,the pitting rate remarkably decreases,with the maximum reduction being 23.96%. When the NaCl concentration falls within the range of 0.5% to 1% (mass fraction),an increase in NaCl concentration significantly impacts the pitting rate,with a maximum increment of 10%. When the RH ranges from 72% to 77%,the pitting rate of carbon steel exhibits an exceptionally high level. The error between the predicted pitting rate and the test is less than 5%. These indicate that the numerical model and prediction formula established in this work are applicable to predicting the pitting evolution process and pitting rate of carbon steel. © 2024 Cailiao Daobaoshe/ Materials Review. All rights reserved.
Keyword ：
Atmospheric corrosion Atmospheric corrosion Atmospheric humidity Atmospheric humidity Carbon sequestration Carbon sequestration Corrosion rate Corrosion rate Digital elevation model Digital elevation model Electrochemical corrosion Electrochemical corrosion Pitting Pitting Steel corrosion Steel corrosion Zero-carbon Zero-carbon
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| GB/T 7714 | Jiang, Shaofei , Lin, Jinxing , Song, Hualin et al. Evolution and Rate Prediction Model of Pitting of Carbon Steel in Atmospheric Environment Based on Multiphysical Fields [J]. | Materials Reports , 2024 , 38 (19) . |
| MLA | Jiang, Shaofei et al. "Evolution and Rate Prediction Model of Pitting of Carbon Steel in Atmospheric Environment Based on Multiphysical Fields" . | Materials Reports 38 . 19 (2024) . |
| APA | Jiang, Shaofei , Lin, Jinxing , Song, Hualin , Wang, Wei , Chen, Minwen . Evolution and Rate Prediction Model of Pitting of Carbon Steel in Atmospheric Environment Based on Multiphysical Fields . | Materials Reports , 2024 , 38 (19) . |
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In order to explore the reinforcement effect and working mechanism of spliced wood columns strengthened by fiber reinforced polymer, the axial compression tests of 10 reinforced wood columns were carried out considering the influence of different fiber sheets and splicing methods. The failure modes and axial compressive properties of reinforced columns under three kinds of FRP sheets (AFRP, BFRP, CFRP) and four kinds of splicing methods (tenon joint, keban tenon joint, mortise joint, straight tenon joint) weree compared and analyzed. The results indicated that the traditional pier jointed columns without FRP reinforcement show the cracking of jointed timber and local buckling fracture after cracking. However, after FRP reinforcement, the integrity of the pier joint area is good, while the failure mainly occurred at the interface between the upper and lower piers, which was manifested as wood crushing and fiber cloth folding. The bearing capacity and stiffness of unconstrained pier joints were only recovered to 42%-69% and 43%-65% respectively. After the FRP reinforced pier was connected to the wooden column, the axial compression capacity can be restored to 75%-100% of the intact wooden column, the stiffness can be restored to 66%-107%, the ductility can be improved by 24%-96%, and the axial compression bearing capacity and deformation capacity of the wooden column can be effectively restored or improved. In addition, the stiffness degradation was not obvious. The load displacement curves and mechanical properties obtained by simulation were in good agreement with the experimental results. In conclusion, the spliced timber columns reinforced by FRP sheets had good mechanical properties, which can provide reference for the repair of traditional timber structures and the splicing of wooden columns. © 2024 Harbin Institute of Technology. All rights reserved.
Keyword ：
Axial compression Axial compression Bearing capacity Bearing capacity Compression testing Compression testing Cracks Cracks Ductility Ductility Fiber reinforced plastics Fiber reinforced plastics Piers Piers Restoration Restoration Stiffness Stiffness Timber Timber
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| GB/T 7714 | Xu, Jie , Jiang, Shaofei . Experimental study on axial compression characteristics of spliced wood columns strengthened with FRP sheets [J]. | Journal of Harbin Institute of Technology , 2024 , 56 (2) : 77-85 . |
| MLA | Xu, Jie et al. "Experimental study on axial compression characteristics of spliced wood columns strengthened with FRP sheets" . | Journal of Harbin Institute of Technology 56 . 2 (2024) : 77-85 . |
| APA | Xu, Jie , Jiang, Shaofei . Experimental study on axial compression characteristics of spliced wood columns strengthened with FRP sheets . | Journal of Harbin Institute of Technology , 2024 , 56 (2) , 77-85 . |
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In order to study the axial compression performance of palm-tenon spliced timber columns reinforced with BFRP sheets (referred to as the reinforced timber column), the axial compression test was carried out on 10 specimens, including seven splicing columns with different number of BFRP transverse and longitudinal fiber layers, one ke-ban splicing column and two intact timber columns. The failure characteristics and load-displacement curves of the columns were analyzed, and a comparison was made between the before- and after-reinforcement columns for the failure mode, strain state, bearing capacity, stiffness and ductility. In order to accurately calculate the displacement ductility coefficient of timber components, the ESEP method was proposed to determine the nominal yield point of timber column. The results show that the integrity of the splicing area is good for the specimens with composite reinforcement of BFRP, and the ultimate bearing capacity and stiffness of reinforced timber columns can be restored to 80% -90% level of intact timber columns, as well as ductility can be increased by 9% -90% . This indicates that the reinforced timber columns have good mechanical performance. The nominal yield displacement determined by ESEP method is reasonable and reliable, which can be used to determine the yield point of timber components. Furthermore, a numerical simulation model was established, and the validity of the model was verified by the experimental results. Based on the model, the effect of splice height (hd) and splice length (ld) on the reinforced timber column were analyzed. A calculation formula was derived for the axial compression capacity of the reinforced timber column. The finite element analysis shows that the bearing capacity decreases with the increase of hd, and ld has little effect on the bearing capacity. The maximum error between the calculated value and the test value is 12. 1% . The formula proposed in this paper can provide reference for the retrofitting of timber structures. © 2024 Science Press. All rights reserved.
Keyword ：
Axial compression Axial compression Bearing capacity Bearing capacity Compression testing Compression testing Ductility Ductility Finite element method Finite element method Reinforcement Reinforcement Stiffness Stiffness Timber Timber
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| GB/T 7714 | Xu, Jie , Jiang, Shaofei , Ge, Ziyi et al. Study on axial compression performance of palm-tenon spliced timber columns reinforced with BFRP sheets [J]. | Journal of Building Structures , 2024 , 45 (3) : 197-207 . |
| MLA | Xu, Jie et al. "Study on axial compression performance of palm-tenon spliced timber columns reinforced with BFRP sheets" . | Journal of Building Structures 45 . 3 (2024) : 197-207 . |
| APA | Xu, Jie , Jiang, Shaofei , Ge, Ziyi , Lin, En , Lin, Jianwen , Fu, Chong . Study on axial compression performance of palm-tenon spliced timber columns reinforced with BFRP sheets . | Journal of Building Structures , 2024 , 45 (3) , 197-207 . |
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素土强度低、耐久性差且各改性材料掺量往往由工匠凭经验大致确定，导致夯土表面时常容易开裂剥落，故应根据现场土质状况以及合理试验方法来设计夯土改性配比。现有研究大都局限于单一性能指标最优的配比，而现实中夯土既要考虑针对多项力学性能指标与耐久性能指标的同步优化，还要考虑不同地域与气候条件下各指标的重要性不同。另外，现有研究仅能确定若干预设配比中的最优组，而非改性材料预设掺量范围内的最优配比。为此，文章提出一种基于力学性能指标与耐久性能指标联合的夯土改性配比优化设计方法，其包括：(1)土料选用原则与土质鉴定方法；(2)考虑夯土多性能指标的综合赋权方法；(3)基于加权评分和回归分析的夯土改性配比综合比选与优化方法。文章方法通过调整指标权重筛选出适应指标重要性不同时的夯土改性配比，并通过优化设计获得各改性材料预设掺量范围内的最优配比。最后通过设计实例证明了文章方法的确可得到最优的夯土改性配比。
Keyword ：
优化设计 优化设计 多性能指标 多性能指标 夯土 夯土 权重系数 权重系数 配比 配比
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| GB/T 7714 | 沈圣 , 孙宇 , 王耀 et al. 基于力学性能指标与耐久性能指标联合的夯土改性配比优化设计方法 [J]. | 土木工程学报 , 2024 , 57 (05) : 1-14 . |
| MLA | 沈圣 et al. "基于力学性能指标与耐久性能指标联合的夯土改性配比优化设计方法" . | 土木工程学报 57 . 05 (2024) : 1-14 . |
| APA | 沈圣 , 孙宇 , 王耀 , 姜绍飞 , 张鹰 , 付绪峰 et al. 基于力学性能指标与耐久性能指标联合的夯土改性配比优化设计方法 . | 土木工程学报 , 2024 , 57 (05) , 1-14 . |
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