Query：
学者姓名：白玉磊
Refining：
Year
Type
Indexed by
Source
Complex
Co-Author
Language
Clean All
Abstract ：
Carbon fiber-reinforced polymer (CFRP) tendons are gaining significant interest in the construction industry owing to their high corrosion resistance. Full-depth precast concrete deck panels (PCDPs) with connections provide advantages for accelerating the construction of superstructures, such as minimizing traffic interruption and improving construction quality. The influences of the connection configuration on the mechanical properties, convenience of construction, and economic cost of PCDPs are the focus issues to be concerned. The poor durability of connection materials also hinders the practical application of full-depth PCDPs. In this paper, a novel high-performance connection for PCDPs was proposed, taking ultrahigh-performance concrete (UHPC) and CFRP strand as grout material and post-tensioned tendon, respectively. The high-performance connection has high strength and durability. Four-point bending experiments were conducted to investigate the flexural performance of PCDPs with the proposed novel connection, including failure mode, moment-deflection curve, capacity, ductility, and working mechanism. Moreover, the numerical simulations were carried out to evaluate the impacts of parameters on the flexural capacity in Abaqus software. An improved analytical model was put forward to predict the balanced CFRP tendon ratio and flexural capacity of PCDPs. The results show that it is ductile-control for the failure mode of PCDPs with high-performance connections. The flexural capacity is significantly improved with the increased quantity of welded studs, initial tendon stress, concrete strength, and anchorage spacing. The proposed connections could effectively promote the behavior and durability of PCDPs.
Keyword ：
Carbon fiber-reinforced polymer (CFRP) tendon Carbon fiber-reinforced polymer (CFRP) tendon Improved analytical model Improved analytical model Ultrahigh-performance concrete (UHPC) Ultrahigh-performance concrete (UHPC) Precast concrete deck panels Precast concrete deck panels Flexural behavior Flexural behavior
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Hu, Menghan , Jia, Zhenlei , Han, Qiang et al. Application of CFRP Tendons to Novel Connections of Precast Concrete Deck Panels: Experiments and Analytical Models [J]. | JOURNAL OF COMPOSITES FOR CONSTRUCTION , 2023 , 27 (1) . |
| MLA | Hu, Menghan et al. "Application of CFRP Tendons to Novel Connections of Precast Concrete Deck Panels: Experiments and Analytical Models" . | JOURNAL OF COMPOSITES FOR CONSTRUCTION 27 . 1 (2023) . |
| APA | Hu, Menghan , Jia, Zhenlei , Han, Qiang , Bai, Yulei , Jiao, Chiyu , Long, Peiheng . Application of CFRP Tendons to Novel Connections of Precast Concrete Deck Panels: Experiments and Analytical Models . | JOURNAL OF COMPOSITES FOR CONSTRUCTION , 2023 , 27 (1) . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
Recycling waste concrete is critical to land use and reduction of landfills. It is a good option to recycle the waste coarse aggregates from it and add them to the concrete matrix. Due to the existence of new and old interface transition zones (ITZs), the quasi-static compressive strength of recycled aggregate concrete is lower than that of natural aggregate concrete, which limits the widespread application of recycled aggregate concrete. In order to improve its engineering application of recycled aggregate concrete, the dynamic compressive properties were studied. Thus, based on a Split Hopkinson Pressure Bar (SHPB) device, the effects of strain rate and recycled coarse aggregate (RCA) replacement ratio on the failure mode, dynamic compressive strength, critical strain and toughness were investigated. It was found that increasing the strain rate led to the aggravation of the specimen damage and growth of the dynamic compressive strength, toughness and critical strain. At a high strain rate, the strain rate effect changed the failure mode of recycled aggregate concrete. This reduced the performance difference between recycled and natural aggregate concrete, in terms of the dynamic compressive strength. The recycled aggregate concrete had a similar toughness to the natural aggregate concrete. Although the growth of the RCA replacement ratio decreased the dynamic compressive strength and increased the critical strain, it had a little effect on the toughness. In order to reduce the brittleness of the recycled aggregate concrete and improve its deformability, non-synthetic, green and low-consumption flax fibers were incorporated into the concrete matrix, and its dynamic compressive behaviors were studied experimentally accordingly. Tests verified that the addition of flax fibers significantly reduced the damage and increased the critical strain. Especially when the strain rate was greater than 200 s-1, flax fiber reinforced recycled aggregate concrete exhibited a superior energy consumption ability. Based on the experimental data, empirical equations were proposed to describe the dynamic compressive strength, critical strain and toughness at different strain rates.
Keyword ：
Dynamic compressive behaviors Dynamic compressive behaviors Flax fibers Flax fibers Recycled aggregate concrete (RAC) Recycled aggregate concrete (RAC)
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Yan, Zhi-Wei , Bai, Yu-Lei , Zhang, Qiang et al. Experimental study on dynamic properties of flax fiber reinforced recycled aggregate concrete [J]. | JOURNAL OF BUILDING ENGINEERING , 2023 , 80 . |
| MLA | Yan, Zhi-Wei et al. "Experimental study on dynamic properties of flax fiber reinforced recycled aggregate concrete" . | JOURNAL OF BUILDING ENGINEERING 80 (2023) . |
| APA | Yan, Zhi-Wei , Bai, Yu-Lei , Zhang, Qiang , Zeng, Jun-Jie . Experimental study on dynamic properties of flax fiber reinforced recycled aggregate concrete . | JOURNAL OF BUILDING ENGINEERING , 2023 , 80 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
为评估地震作用下大应变纤维增强聚合物(large rupture strain fiber reinforced polymer, LRS FRP)加固桥梁的抗震性能，以一典型三跨连续梁桥为例进行了研究。目前关于LRS FRP约束混凝土往复轴压模型的研究较少，限制了LRS FRP加固桥梁的抗震分析。因此介绍了作者课题组提出的简化LRS FRP约束混凝土往复轴压模型，根据此模型并结合地震易损性分析理论，基于OpenSees平台，采用增量动力分析(incremental dynamic analysis, IDA)方法，对三跨连续梁桥在LRS FRP加固前后的地震易损性进行了分析。结果表明：轻微损伤和中等损伤状态下桥梁墩柱基本处于未受损坏的线弹性阶段，LRS FRP加固对其地震易损性影响不大；严重破坏和完全倒塌状态下，未加固桥梁的损坏超越概率明显大于LRS FRP加固的桥梁。提出的简化LRS FRP约束混凝土往复轴压模型可为LRS FRP加固桥梁的抗震分析提供参考。
Keyword ：
增量动力分析 增量动力分析 OpenSees OpenSees 桥梁工程 桥梁工程 地震易损性 地震易损性 桥梁墩柱 桥梁墩柱 LRS FRP LRS FRP
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 白玉磊 , 张玉峰 , 梅世杰 et al. 大应变FRP加固连续梁桥地震易损性分析 [J]. | 哈尔滨工业大学学报 , 2023 , 55 (09) : 84-91 . |
| MLA | 白玉磊 et al. "大应变FRP加固连续梁桥地震易损性分析" . | 哈尔滨工业大学学报 55 . 09 (2023) : 84-91 . |
| APA | 白玉磊 , 张玉峰 , 梅世杰 , 贾俊峰 , 杜修力 . 大应变FRP加固连续梁桥地震易损性分析 . | 哈尔滨工业大学学报 , 2023 , 55 (09) , 84-91 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
为了可靠、准确地预测钢管混凝土(CFST)柱的轴向承载力,建立和解释集成机器学习的CFST柱轴向承载力预测模型.使用马氏距离评估CFST柱数据库质量,通过极限梯度提升(XGBoost)算法建立CFST柱轴向承载力预测模型,使用K折交叉验证(K-Fold CV)和树结构概率密度估计(TPE)算法寻找模型的最优超参数组合.采用不同评价指标将优化后XGBoost模型的预测值与已有方法和未优化XGBoost模型的计算值比较.使用SHAP方法给出XGBoost模型预测结果的整体和局部的解释.结果表明,经过超参数调整优化的XGBoost模型的性能超越了相关规范和经验公式的性能,且SHAP方法能够有效地解释XGBoost模型的输出.
Keyword ：
SHAP SHAP 轴向承载力 轴向承载力 可解释性 可解释性 钢管混凝土(CFST)柱 钢管混凝土(CFST)柱 超参数优化 超参数优化 极限梯度提升(XGBoost) 极限梯度提升(XGBoost)
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 陈曦泽 , 贾俊峰 , 白玉磊 et al. 基于XGBoost-SHAP的钢管混凝土柱轴向承载力预测模型 [J]. | 浙江大学学报（工学版） , 2023 , 57 (6) : 1061-1070 . |
| MLA | 陈曦泽 et al. "基于XGBoost-SHAP的钢管混凝土柱轴向承载力预测模型" . | 浙江大学学报（工学版） 57 . 6 (2023) : 1061-1070 . |
| APA | 陈曦泽 , 贾俊峰 , 白玉磊 , 郭彤 , 杜修力 . 基于XGBoost-SHAP的钢管混凝土柱轴向承载力预测模型 . | 浙江大学学报（工学版） , 2023 , 57 (6) , 1061-1070 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
The authors regret that . The authors would like to apologise for any inconvenience caused. © 2022 Elsevier Ltd
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Ding, Y. , Liu, J.-P. , Bai, Y.-L. . Corrigendum to “Linkage of multi-scale performances of nano-CaCO3 modified ultra-high performance engineered cementitious composites (UHP-ECC)” [J. Constr. Build. Mater. 234 (2020) 117418] (Construction and Building Materials (2020) 234, (S0950061819328703), (10.1016/j.conbuildmat.2019.117418)) [未知]. |
| MLA | Ding, Y. et al. "Corrigendum to “Linkage of multi-scale performances of nano-CaCO3 modified ultra-high performance engineered cementitious composites (UHP-ECC)” [J. Constr. Build. Mater. 234 (2020) 117418] (Construction and Building Materials (2020) 234, (S0950061819328703), (10.1016/j.conbuildmat.2019.117418))" [未知]. |
| APA | Ding, Y. , Liu, J.-P. , Bai, Y.-L. . Corrigendum to “Linkage of multi-scale performances of nano-CaCO3 modified ultra-high performance engineered cementitious composites (UHP-ECC)” [J. Constr. Build. Mater. 234 (2020) 117418] (Construction and Building Materials (2020) 234, (S0950061819328703), (10.1016/j.conbuildmat.2019.117418)) [未知]. |
| Export to | NoteExpress RIS BibTex |
Abstract ：
预应力连接预制节段桥墩已在美国低震区桥梁中得到较多应用，但在我国的工程应用甚少。由于预制节段桥墩的震害资料缺乏，震害经验不足，且其抗震机理不明确、设计方法不完善，在强震区较少应用。该文基于预应力连接预制节段墩柱缩尺模型的拟静力往复试验测试，采用有限元分析软件ABAQUS建立其精细化数值模型，进行了单向、斜向往复荷载作用下墩柱拟静力试验数值仿真，将桥墩的损伤特征、滞回行为、墩内竖向预应力和预制节段间接缝开口量与试验测试结果进行了对比分析。结果表明：该文建立的预制节段桥墩数值模型可较好地再现拟静力试验结果，试验和模拟结果均表明斜向加载的预制节段墩柱较单向加载的构件损伤更为严重，构件屈服更早，残余位...
Keyword ：
残余偏移率 残余偏移率 抗震性能 抗震性能 斜向循环加载 斜向循环加载 预制节段拼装桥墩 预制节段拼装桥墩 数值仿真模型 数值仿真模型
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 张凯迪 , 贾俊峰 , 白玉磊 et al. 预应力连接预制节段桥墩拟静力试验数值仿真分析 [J]. | 工程力学 , 2022 , 39 (S1) : 207-213,228 . |
| MLA | 张凯迪 et al. "预应力连接预制节段桥墩拟静力试验数值仿真分析" . | 工程力学 39 . S1 (2022) : 207-213,228 . |
| APA | 张凯迪 , 贾俊峰 , 白玉磊 , 郭彤 . 预应力连接预制节段桥墩拟静力试验数值仿真分析 . | 工程力学 , 2022 , 39 (S1) , 207-213,228 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
为进一步明确纤维增强复合材料(FRP)约束混凝土圆柱轴压性能影响因素及现有约束模型适用性，收集了混凝土强度在6.2～188.2 MPa范围内的普通混凝土、高强混凝土、超高性能混凝土、再生混凝土、海水海砂混凝土和工程水泥基复合材料等1 049组普通FRP/大应变FRP包裹圆柱的试验数据。在统计分析基础上，基于最小二乘法建立了较高精度的FRP环向断裂应变折减系数预测公式。探究了FRP类型、混凝土强度和种类对FRP约束混凝土圆柱峰值强度和极限应变的影响规律。研究结果表明：约束比相同时，FRP类型对约束混凝土峰值强度影响可忽略不计，但对极限应变影响较大，大应变FRP可显著提高受约束柱延性，更适用于桥墩...
Keyword ：
应变折减系数 应变折减系数 极限应变 极限应变 FRP约束混凝土 FRP约束混凝土 桥梁工程 桥梁工程 峰值强度 峰值强度 统一约束模型 统一约束模型
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 袁婉莹 , 韩强 , 白玉磊 et al. FRP包裹混凝土圆柱统一约束模型 [J]. | 中国公路学报 , 2022 , 35 (02) : 146-158 . |
| MLA | 袁婉莹 et al. "FRP包裹混凝土圆柱统一约束模型" . | 中国公路学报 35 . 02 (2022) : 146-158 . |
| APA | 袁婉莹 , 韩强 , 白玉磊 , 杜修力 , 刘青龙 . FRP包裹混凝土圆柱统一约束模型 . | 中国公路学报 , 2022 , 35 (02) , 146-158 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
为了研究地震作用下高延性纤维增强复合材料(large-rupture-strain fiber reinforced polymer, LRS FRP)加固非延性钢筋混凝土(reinforced concrete, RC)方柱的抗震性能，对7个FRP加固RC方柱进行了拟静力试验。试验试件包括1根对比柱，1根碳纤维(carbon FRP,CFRP)加固柱和5根高延性(LRS)FRP加固柱。通过分析不同试件的破坏形态、抗震性能参数、FRP应变，研究了FRP种类和加固层数对其破坏形态和抗震性能的影响。试验结果表明：在轴压荷载与水平往复荷载作用下，未加固柱的破坏形式为塑性铰区混凝土保护层发生剥落并被压...
Keyword ：
抗震性能 抗震性能 FRP加固 FRP加固 拟静力试验 拟静力试验 钢筋屈曲 钢筋屈曲 高延性FRP 高延性FRP
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 白玉磊 , 杨凯 , 韩强 et al. 高延性FRP加固RC矩形柱抗震性能 [J]. | 哈尔滨工业大学学报 , 2022 , 54 (04) : 82-91 . |
| MLA | 白玉磊 et al. "高延性FRP加固RC矩形柱抗震性能" . | 哈尔滨工业大学学报 54 . 04 (2022) : 82-91 . |
| APA | 白玉磊 , 杨凯 , 韩强 , 于辉 , 张玉峰 , 孟庆利 . 高延性FRP加固RC矩形柱抗震性能 . | 哈尔滨工业大学学报 , 2022 , 54 (04) , 82-91 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
将震后可恢复功能设计新理念和预制装配桥梁建造新技术相结合，在已开展自复位预制装配式RC桥墩结构拟静力往复加载试验基础上，基于OpenSees软件平台建立了自复位预制拼装RC桥墩的数值模型.数值仿真了水平往复加载作用下自复位预制桥墩力学行为并与模型试验结果进行了对比验证.参数化分析了预制桥墩高宽比、轴心后张预应力筋面积和初始张拉力等关键设计参数对自复位预制桥墩抗震性能的影响.结果表明，本文基于OpenSees建立的数值模型可较好地模拟自复位桥墩的拟静力往复力学行为.随墩柱高宽比增大，预制桥墩侧向初始刚度、屈服后刚度、承载力迅速下降，滞回曲线也越来越不饱满，耗能能力变弱.随轴向预应力筋初始张拉应力...
Keyword ：
装配式桥墩 装配式桥墩 残余位移 残余位移 抗震性能 抗震性能 数值模拟 数值模拟 自复位桥墩 自复位桥墩 预应力筋面积 预应力筋面积 初始张拉力 初始张拉力 参数分析 参数分析 可更换耗能器 可更换耗能器
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 贾俊峰 , 谭豫卿 , 白玉磊 et al. 基于OpenSees仿真的自复位预制装配RC桥墩抗震性能分析 [J]. | 应用基础与工程科学学报 , 2022 , 30 (02) : 328-340 . |
| MLA | 贾俊峰 et al. "基于OpenSees仿真的自复位预制装配RC桥墩抗震性能分析" . | 应用基础与工程科学学报 30 . 02 (2022) : 328-340 . |
| APA | 贾俊峰 , 谭豫卿 , 白玉磊 , 程寿山 , 李逸松 . 基于OpenSees仿真的自复位预制装配RC桥墩抗震性能分析 . | 应用基础与工程科学学报 , 2022 , 30 (02) , 328-340 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
大应变纤维增强复合材料(LRS FRP)由于断裂应变大的特点(>5%),可能在桥墩结构抗震加固中带来较好的延性，近年来成为国内外研究的热点。大应变FRP约束混凝土应力-应变关系设计模型是加固桥墩抗震分析的基础。通过LRS FRP约束混凝土的单调轴压试验，研究了FRP约束刚度参数对应力-应变关系的影响。与基于强度的设计模型由FRP断裂应变确定FRP约束混凝土应力应变关系曲线第2段的斜率(即轴向刚度)不同，轴向刚度由FRP的约束刚度参数决定，由此建立了单调轴压下LRS FRP约束混凝土基于刚度的设计模型。对LRS FRP约束混凝土往复轴压参数(例如卸载曲线、再加载曲线和塑性应变)进行了分析研究，发...
Keyword ：
大应变FRP 大应变FRP 应力-应变曲线 应力-应变曲线 纤维增强复合材料(FRP) 纤维增强复合材料(FRP) 约束混凝土 约束混凝土 基于刚度模型 基于刚度模型 抗震加固 抗震加固 桥梁工程 桥梁工程
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 白玉磊 , 梅世杰 , 张玉峰 et al. 基于刚度的大应变FRP约束混凝土模型及其在桥梁抗震加固中的应用 [J]. | 中国公路学报 , 2022 , 35 (02) : 115-123 . |
| MLA | 白玉磊 et al. "基于刚度的大应变FRP约束混凝土模型及其在桥梁抗震加固中的应用" . | 中国公路学报 35 . 02 (2022) : 115-123 . |
| APA | 白玉磊 , 梅世杰 , 张玉峰 , 韩强 , 贾俊峰 . 基于刚度的大应变FRP约束混凝土模型及其在桥梁抗震加固中的应用 . | 中国公路学报 , 2022 , 35 (02) , 115-123 . |
| Export to | NoteExpress RIS BibTex |
Export
| Results： |
Selected to |
| Format： |
