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学者姓名：陈宝春
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Abstract ：
钢管混凝土(CFST)混合柱是在柱底一定高度内采用钢筋混凝土(RC)腹板、其余节段采用空钢管缀杆连接CFST柱肢的一种新型组合结构.为研究CFST混合柱的抗震性能,以RC腹板高度系数(腹板高度与柱高的比值)和柱肢纵向间距为参数,进行了 6个CFST混合柱试件的拟静力试验.研究结果表明:水平低周反复荷载作用下,CFST混合柱的抗震性能良好,荷载-位移滞回曲线呈饱满梭形,主要破坏形式表现为格构段的剪切型破坏、柱肢塑性铰区域钢管的局部鼓曲变形以及RC腹板顶部刚度过渡段混凝土开裂、剥落;当RC腹板高度系数从 0.0变化到 0.3时,CFST混合柱的塑性铰区域由柱底截面上移至RC腹板顶部,试件弹性刚度和水平峰值荷载分别增大了约 53%和 31%,极限位移延性系数略微提高了约 5%;而当RC腹板高度系数从 0.3变化至 0.7时,CFST混合柱的塑性铰区域均出现在RC腹板顶部,试件弹性刚度和水平峰值荷载显著增大,分别增加了约 172%和 98%,相同位移下的累积滞回耗能也明显增加,但极限位移延性系数减少了约 16%;当柱肢纵向间距从 650 mm减小至 250 mm,柱肢塑性铰区域由RC腹板顶部转移至柱底截面,且结构的破坏形态逐渐转变为整体失稳破坏,弹性刚度和水平峰值荷载分别减小了约 67%和 47%.根据结构受力特点,提出了CFST混合柱水平承载力计算方法,得到的计算值与试验值吻合较好.
Keyword ：
抗震性能 抗震性能 拟静力试验 拟静力试验 柱肢纵向间距 柱肢纵向间距 水平承载力 水平承载力 腹板高度系数 腹板高度系数 钢管混凝土混合柱 钢管混凝土混合柱
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| GB/T 7714 | 袁辉辉 , 程军 , 吴庆雄 et al. 钢管混凝土混合柱抗震性能试验研究 [J]. | 工程力学 , 2025 , 42 (3) : 167-180 . |
| MLA | 袁辉辉 et al. "钢管混凝土混合柱抗震性能试验研究" . | 工程力学 42 . 3 (2025) : 167-180 . |
| APA | 袁辉辉 , 程军 , 吴庆雄 , 杜雨鸿 , 陈宝春 , 吴祎贤 . 钢管混凝土混合柱抗震性能试验研究 . | 工程力学 , 2025 , 42 (3) , 167-180 . |
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闽浙木拱廊桥是目前唯一列入我国"世界文化遗产预备名录"的历史桥梁群.针对频发的火毁事故带来的巨大损害及防火与火灾后重建等问题,对遗产桥梁的真实性原则进行深入分析,并结合世界遗产桥梁西班牙比斯开桥、波黑莫斯塔尔桥和著名历史桥梁日本锦带桥、瑞士教堂桥的保护与重建实例,对闽浙木拱廊桥防火和重建等与真实性高度相关的问题进行分析,提出关键保护措施.结果表明:遗产桥梁保护的真实性原则应着重于其核心价值和功能性.闽浙木拱廊桥涂覆透明的防火涂料、在桥墩上砌筑防火分区隔离墙等有效的防火措施,属于非核心部分的改变,对遗产的真实性不造成实质损害,应深入开展技术研究并逐步推广应用;重建、重修是闽浙木拱廊桥保护不可或缺的手段,必要且合适的重建有利于其遗产价值的保护,应在继续传承好"原工艺"的基础上,不断完善重建中的"原设计"和"原材料",并挖掘和赋予新的遗产意义和价值.闽浙木拱廊桥保护的重点应在其特殊结构、建造工艺、多重功能等核心价值,灵活应用传统技艺和现代技术,保护桥梁核心价值要素的真实性,并尽可能延长使用寿命.
Keyword ：
世界遗产 世界遗产 保护措施 保护措施 桥梁遗产 桥梁遗产 真实性 真实性 重建 重建 闽浙木拱廊桥 闽浙木拱廊桥 防火 防火
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| GB/T 7714 | 陈舒洁 , Antonio Candeias , 陈宝春 et al. 基于世界遗产桥梁真实性原则的闽浙木拱廊桥保护措施研究 [J]. | 世界桥梁 , 2025 , 53 (1) : 108-115 . |
| MLA | 陈舒洁 et al. "基于世界遗产桥梁真实性原则的闽浙木拱廊桥保护措施研究" . | 世界桥梁 53 . 1 (2025) : 108-115 . |
| APA | 陈舒洁 , Antonio Candeias , 陈宝春 , 逄博如 . 基于世界遗产桥梁真实性原则的闽浙木拱廊桥保护措施研究 . | 世界桥梁 , 2025 , 53 (1) , 108-115 . |
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单圆管钢管混凝土(CFST)拱桥常采用稀疏的横撑布置形式,面外失稳时具有较大的剪切变形,不适合采用现有基于不考虑剪切变形假定的计算方法.本文以缀板稀疏布置的格构柱为研究对象,推导得到考虑剪切变形后格构柱弹性分支屈曲临界荷载计算公式,并以格构柱弹性分支屈曲临界荷载计算公式为基础,采用等效梁柱法推导得到考虑剪切变形的单圆管钢管混凝土拱桥面外弹性分支屈曲临界荷载计算公式.开展了单圆管钢管混凝土标准拱桥有限元参数分析,并将有限元分析结果与考虑和不考虑剪切变形计算公式、现有规范与参考文献推荐计算公式的计算结果进行对比分析.研究结果表明:在工程常用的结构尺寸范围内,现有规范和文献推荐公式计算结果比有限元计算结果小了1个数量级,不适用于计算单圆管钢管混凝土拱桥面外弹性分支屈曲临界荷载.本文提出的考虑剪切变形的单圆管钢管混凝土拱桥面外弹性分支屈曲临界荷载计算公式与有限元计算结果的误差在15%之内,具有较大的精度提升和较好的适用性.
Keyword ：
单圆管 单圆管 弹性稳定 弹性稳定 极限承载力算法 极限承载力算法 桥梁工程 桥梁工程 钢管混凝土拱桥 钢管混凝土拱桥 面外 面外
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| GB/T 7714 | 黄卿维 , 吴庆雄 , 陈宝春 et al. 单圆管CFST拱桥面外弹性分支屈曲临界荷载计算方法 [J]. | 吉林大学学报（工学版） , 2024 , 54 (10) : 2930-2940 . |
| MLA | 黄卿维 et al. "单圆管CFST拱桥面外弹性分支屈曲临界荷载计算方法" . | 吉林大学学报（工学版） 54 . 10 (2024) : 2930-2940 . |
| APA | 黄卿维 , 吴庆雄 , 陈宝春 , 陈康明 , 叶智威 . 单圆管CFST拱桥面外弹性分支屈曲临界荷载计算方法 . | 吉林大学学报（工学版） , 2024 , 54 (10) , 2930-2940 . |
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开展了闽浙编木拱桥燕尾榫节点足尺模型拟静力试验,分析了闽浙编木拱桥与古建筑木结构中燕尾榫节点受力机理的异同,探讨了燕尾榫节点受力模型应用于闽浙编木拱桥燕尾榫节点的适用性;根据力学平衡和变形协调条件,建立了考虑节点拔榫量与榫卯口缝隙的闽浙编木拱桥燕尾榫节点弯矩转角力学模型与计算公式,并通过试验数据和有限元分析验证了闽浙编木拱桥燕尾榫节点力学模型和节点刚度,揭示了转角位移和加载行程对拔榫量的影响和榫卯口缝隙与两端轴力对燕尾榫节点刚度的影响.研究结果表明:弹性阶段闽浙编木拱桥燕尾榫节点滞回耗能能力随两端轴力增加而增大,转角大于0.04 rad时构件进入屈服阶段,挤压变形不能恢复,转角达到0.06 rad时滞回曲线斜率停止增长,加载结束后燕尾榫节点未破坏;由于闽浙编木拱桥与古建筑木结构中燕尾榫节点受力机理不同,古建筑木结构中的燕尾榫节点受力模型不适用于闽浙编木拱桥燕尾榫节点,有限元计算所得闽浙编木拱桥燕尾榫节点弯矩转角与试验结果的误差仅为3.2％,弹性正、负最大弯矩与试验值的误差分别为16.7％与-5.2％,说明建立的弯矩转角力学模型可精准反映出节点在转动过程中的弯矩转角变化规律;拔榫量在弹性阶段主要受转角影响,弹塑性阶段则主要受加载控制位移和加载级数影响;榫卯口缝隙从0.06 mm减小至0.01 mm时,节点刚度从29.46 kN·m·rad-1增加至52.24 kN·m·rad-1,反映了燕尾榫节点刚度随榫卯口缝隙的减小而增大的趋势.综上所述,提出的力学模型可为现存闽浙编木拱桥保护、修缮和全桥结构抗震性能研究提供参考.
Keyword ：
力学性能 力学性能 受力机理 受力机理 弯矩转角力学模型 弯矩转角力学模型 桥梁工程 桥梁工程 燕尾榫节点 燕尾榫节点 节点刚度 节点刚度 闽浙编木拱桥 闽浙编木拱桥
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| GB/T 7714 | 杨艳 , 郑裔 , 黄聪燕 et al. 闽浙编木拱桥燕尾榫节点力学模型 [J]. | 交通运输工程学报 , 2024 , 24 (5) : 113-130 . |
| MLA | 杨艳 et al. "闽浙编木拱桥燕尾榫节点力学模型" . | 交通运输工程学报 24 . 5 (2024) : 113-130 . |
| APA | 杨艳 , 郑裔 , 黄聪燕 , 韦建刚 , 吴庆雄 , 陈宝春 . 闽浙编木拱桥燕尾榫节点力学模型 . | 交通运输工程学报 , 2024 , 24 (5) , 113-130 . |
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This paper presents an experimental study on tensile behavior of steel and ultra-high performance concrete (UHPC) composite structure connected by different connections including epoxy resin adhesive, headed stud, and hybrid of the former two. Thirty-two pull-out tests are conducted by taking the connection type, specimen size and steel fiber content of UHPC as the main parameters. The influences of these main parameters on the failure mode, load-separation behavior, and ultimate resistance of connection are researched. The failure modes of specimens with hybrid connection are UHPC interface debonding and UHPC cone failure, which is identical with the epoxy resin adhesive connection and headed stud connection, respectively. The tensile resistance ratio of headed stud connection to epoxy resin adhesive connection has a significant influence both on the separation performance and tensile resistance of hybrid connection. An empirical equation for predicting the tensile resistance of hybrid connection was proposed by taking the tensile resistance ratio of headed stud to epoxy resin adhesive. The ratio of predicted to test result was 0.973with standard deviations of 0.070. The pull-out tests and analysis of the hybrid connection in steel-UHPC composite structure were still needed to study to get it improved. © 2024 Institution of Structural Engineers
Keyword ：
Adhesives Adhesives Composite structures Composite structures Epoxy resins Epoxy resins Failure modes Failure modes High performance concrete High performance concrete Steel fibers Steel fibers Steel testing Steel testing Structure (composition) Structure (composition) Studs (fasteners) Studs (fasteners) Studs (structural members) Studs (structural members)
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| GB/T 7714 | Li, Cong , Ji, Dai lai , Zhang, Dong et al. Pull-out test of hybrid connection in steel-UHPC composite slab [J]. | Structures , 2024 , 66 . |
| MLA | Li, Cong et al. "Pull-out test of hybrid connection in steel-UHPC composite slab" . | Structures 66 (2024) . |
| APA | Li, Cong , Ji, Dai lai , Zhang, Dong , Chen, Baochun . Pull-out test of hybrid connection in steel-UHPC composite slab . | Structures , 2024 , 66 . |
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为了解大尺寸预应力UHPC箱梁的抗弯性能，以预应力UHPC公路桥——河北石磁跨线桥为背景，设计、制作1片长30 m的足尺预应力UHPC箱梁模型进行四点弯曲试验，结合有限元计算结果，分析试验现象及裂缝分布、跨中荷载～位移曲线、受拉区UHPC及筋材应力～应变曲线。在此基础上分别考虑普通钢筋配筋情况、预应力筋数、腹板厚度和底板厚度等参数对预应力UHPC箱梁进行结构优化设计研究。结果表明：箱梁破坏时受压区UHPC未压溃、受拉区钢纤维被拔出，裂缝贯通底板；根据荷载～位移曲线，箱梁受力可分为弹性阶段、裂缝发展阶段、裂缝快速发展阶段和破坏阶段；根据应力～应变曲线，受拉区UHPC在纵筋屈服时仍能贡献抗拉能力；试验现象及力学指标实测值均说明了预应力UHPC箱梁抗弯能力还有很大富裕空间，可进一步优化。完全不配置普通钢筋的预应力UHPC箱梁仍能满足抗弯承载能力极限状态设计要求；底部预应力筋数增多可有效提高受压区UHPC的抗压强度利用率；腹板厚度过薄会造成腹板主拉应力过大问题，不宜薄于8 cm;采用体外预应力的方法可有效减薄底板所需厚度。
Keyword ：
抗弯性能 抗弯性能 有限元法 有限元法 破坏形态 破坏形态 结构优化 结构优化 裂缝分布 裂缝分布 足尺模型试验 足尺模型试验 预应力UHPC箱梁 预应力UHPC箱梁
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| GB/T 7714 | 马熙伦 , 唐梓轩 , 陈宝春 et al. 30 m预应力UHPC箱梁抗弯性能试验及结构优化研究 [J]. | 桥梁建设 , 2024 , 54 (03) : 93-99 . |
| MLA | 马熙伦 et al. "30 m预应力UHPC箱梁抗弯性能试验及结构优化研究" . | 桥梁建设 54 . 03 (2024) : 93-99 . |
| APA | 马熙伦 , 唐梓轩 , 陈宝春 , 范冰辉 . 30 m预应力UHPC箱梁抗弯性能试验及结构优化研究 . | 桥梁建设 , 2024 , 54 (03) , 93-99 . |
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The compressive behavior of steel tube reinforced concrete (STRC) columns under eccentric loads was investigated experimentally and numerically in this paper. Primary parameters included the eccentricity ratio, the concrete-filled steel tube (CFST) area ratio, and the longitudinal rebar ratio. This paper analyzed the impacts of these parameters as well as the failure modes, the full-range compression process, and the strain development. Similar to the reinforced concrete (RC) column, the full-range compression process of STRC column under eccentric loads can be divided into three stages, i.e., elastic stage, elastic-plastic stage (cracking stage), and plastic stage (descent stage). The experimental findings showed that, on the near-load side of the STRC column, the outer concrete crushed, and the longitudinal rebars buckled in compression. Conversely, on the far-load side, the concrete exhibited cracking in tension, and the longitudinal rebars exhibited tension. Finite element (FE) analysis results demonstrated that, similar to a RC column, three distinct failure mechanisms can be identified for STRC columns under eccentric loads, i.e., compression-controlled, balanced, and tension-controlled failures. During the compression process, analyses were conducted on the contact stress between the steel tube and concrete, as well as on the load distribution between the inner CFST and the outer RC. The ultimate load of the STRC column decreased with an increase in the eccentricity ratio, while it increased with larger longitudinal rebar ratio and CFST area ratio. Based on the experimental and FE analysis results, a simplified calculation method was developed to determine the eccentricity reduction coefficient for STRC columns.
Keyword ：
CFST area ratio CFST area ratio Eccentricity reduction coefficient Eccentricity reduction coefficient Failure mechanism Failure mechanism Finite element analysis Finite element analysis STRC column STRC column
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| GB/T 7714 | He, Fuyun , Li, Cong , Shen, Wei et al. Compressive behavior of steel tube reinforced concrete column under eccentric loads [J]. | JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH , 2024 , 219 . |
| MLA | He, Fuyun et al. "Compressive behavior of steel tube reinforced concrete column under eccentric loads" . | JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH 219 (2024) . |
| APA | He, Fuyun , Li, Cong , Shen, Wei , Chen, Baochun , Briseghella, Bruno . Compressive behavior of steel tube reinforced concrete column under eccentric loads . | JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH , 2024 , 219 . |
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Uniaxial tensile test of ultra-high performance concrete(UHPC)is a basic material test to analyze its tensile properties and tensile constitutive relationship. Through optimization of the shape and size of the specimens,the success rate of the test has been greatly improved. However,due to the difference in the connection device and reinforcement method,the success rate of each institution is uneven. In order to further ensure the success rate of the uniaxial tensile test,the influence of four common connection devices and three reinforcement methods on the success rate of the test were systematically analyzed through experimental research and numerical simulation,and the optimal test scheme was selected. The results showed that the in-plane clamping device has the advantages of reliable connection and simple operation,which is suitable for popularization. However,there is a problem that the size processing error or micro deformation of the clamp leads to the narrowing of the contact surface with the specimen,intensifies the stress concentration caused by clamping,and makes it impossible to control the main crack to be located in the measuring range;both flexible reinforcement (paste carbon fiber reinforced polymer)and rigid reinforcement (paste aluminum sheet) of the contact area between the specimen and the fixture can effectively solve the above problems,increase the success rate. In addition,the influence of the aspect ratio and volume fraction of steel fibers on the damage constitutive relationship of UHPC under uniaxial tension was investigated by using the optimal uniaxial tensile test method. The damage evolution law of UHPC under uniaxial tensile load was explored through acoustic emission (AE)monitoring. The damage factor was constructed using AE parameters (cumulative counts ratio),and the uniaxial tensile damage constitutive relationship of UHPC considering the influence of steel fiber was obtained. © 2024 Cailiao Daobaoshe/ Materials Review. All rights reserved.
Keyword ：
Acoustic emission testing Acoustic emission testing Aspect ratio Aspect ratio Carbon fiber reinforced plastics Carbon fiber reinforced plastics High performance concrete High performance concrete Numerical methods Numerical methods Steel fibers Steel fibers Tensile testing Tensile testing
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| GB/T 7714 | Yang, Jian , Li, Yang , Chen, Baochun et al. Study on Uniaxial Tensile Test Method and Constitutive Relationship of UHPC [J]. | Materials Reports , 2024 , 38 (6) . |
| MLA | Yang, Jian et al. "Study on Uniaxial Tensile Test Method and Constitutive Relationship of UHPC" . | Materials Reports 38 . 6 (2024) . |
| APA | Yang, Jian , Li, Yang , Chen, Baochun , Xu, Gang , Huang, Qingwei . Study on Uniaxial Tensile Test Method and Constitutive Relationship of UHPC . | Materials Reports , 2024 , 38 (6) . |
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超高性能纤维增强混凝土的单轴本构关系是认识其材料特性和非线性结构设计的基础.本文从本构方程函数模型建立的角度梳理了现有超高性能纤维增强混凝土单轴本构关系的相关研究;发现本构关系经验模型适用于结构设计计算,其中轴拉和轴压本构方程式均宜采用有理分式;本构关系简化模型适用于简化受力分析和数值模拟,其中轴拉宜采用三折线模型,轴压宜采用双折线模型;本构关系损伤模型适用于材料特性研究,其损伤演化函数较多采用Weibull分布.此外,还发现现有各种研究所得的本构方程中均不包含纤维相关参数,不能充分体现钢纤维的重要影响.因此,针对 3种长径比、6种体积率的超高性能纤维增强混凝土进行轴拉和轴压试验,分析纤维对本构关系的影响.结果表明:超高性能纤维增强混凝土的轴拉和轴压本构关系经验模型均采用有理分式更适合,结合试验与收集的文献数据分析了纤维对经验模型本构方程系数的影响,提出了单轴本构关系经验模型的方程式;还探究了钢纤维参数对单轴损伤本构关系的影响,试验结果表明,钢纤维增强因子与损伤模型的控制系数间存在较强相关性,以试验数据为基础,数值分析得到钢纤维参数与本构方程控制系数间的关系式,进而提出包含钢纤维参数的轴拉和轴压损伤本构方程;并收集文献数据进行验证和修正,结果表明本文提出的本构方程与试验结果更吻合.
Keyword ：
体积率 体积率 本构关系 本构关系 超高性能纤维增强混凝土 超高性能纤维增强混凝土 轴压 轴压 轴拉 轴拉 钢纤维 钢纤维 长径比 长径比
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| GB/T 7714 | 邓金岚 , 杨简 , 陈宝春 et al. 超高性能纤维增强混凝土单轴本构关系和钢纤维增强作用对其影响 [J]. | 复合材料学报 , 2024 , 41 (2) : 911-924 . |
| MLA | 邓金岚 et al. "超高性能纤维增强混凝土单轴本构关系和钢纤维增强作用对其影响" . | 复合材料学报 41 . 2 (2024) : 911-924 . |
| APA | 邓金岚 , 杨简 , 陈宝春 , 徐港 , 李洋 . 超高性能纤维增强混凝土单轴本构关系和钢纤维增强作用对其影响 . | 复合材料学报 , 2024 , 41 (2) , 911-924 . |
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This paper studied the axial compression behavior of the steel tube reinforced concrete (STRC) column, which consisted of inner CFST and outer RC components. Ten specimens, including seven STRC columns, two RC columns, and one CFST column were tested. The test parameters included the CFST area ratio (inner CFST to the whole section), longitudinal rebar ratio and stirrup space. The test results showed that the compressive behavior of STRC column with a CFST area ratio of 0.04 was close to that of the RC column, and the compressive behavior of the STRC column with a CFST area ratio of 0.13 was between that of the RC column and CFST column. The finite element (FE) models were developed and verified by test results to investigate the effects of longitudinal rebar ratio and stirrup space on the axial compression behavior of STRC column with various CFST area ratios. The load distribution between inner CFST and outer RC components was analyzed. The FE results showed that the effects of the longitudinal rebar ratio on the ultimate load of STRC column were related to the CFST area ratio. The accuracy and applicability of the five methods suggested by codes for predicting the ultimate load of STRC column were discussed based on the test and FE results.
Keyword ：
Axial compression Axial compression CFST area ratio CFST area ratio Finite element Finite element Longitudinal rebar ratio Longitudinal rebar ratio Steel tube reinforced concrete Steel tube reinforced concrete Ultimate load Ultimate load
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| GB/T 7714 | He, Fuyun , Li, Cong , Chen, Baochun et al. Axial compression behavior of steel tube reinforced concrete column [J]. | ENGINEERING STRUCTURES , 2024 , 303 . |
| MLA | He, Fuyun et al. "Axial compression behavior of steel tube reinforced concrete column" . | ENGINEERING STRUCTURES 303 (2024) . |
| APA | He, Fuyun , Li, Cong , Chen, Baochun , Briseghella, Bruno , Xue, Junqing . Axial compression behavior of steel tube reinforced concrete column . | ENGINEERING STRUCTURES , 2024 , 303 . |
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