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学者姓名：苏家战
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Abstract ：
The composite RC (reinforcement concrete) beam featuring ultra-high performance concrete (UHPC) butterfly webs represents an innovative structural design that combines the strengths of both RC and UHPC materials. It exhibits considerable potential for applications in arch bridges. This paper presents the outcomes of a trial design involving a composite RC structure with UHPC butterfly webs. Subsequently, it conducts a preliminary analysis of the mechanical behavior of this composite RC beam with UHPC butterfly webs under axial and shear forces. The study evaluates the effects of various parameters, including the dimensions of the butterfly web, ratio of axial compression stress to strength, ratio of shear span to depth, and reinforcement of web, using finite element software (ABAQUS). The results indicate that the mechanical behavior of the composite beam is significantly influenced by the parameter of the butterfly web. Remarkably, the shear capacity of the composite beam in creased within the angle ranged of 50 degrees to 70 degrees, the thickness ranged of 40 mm to 90 mm, and the width-to-height ratio ranged of 0.9 to 1.1. Furthermore, the shear capacity of the composite beam can be effectively enhanced by optimizing the ratio of axial compression stress to strength and by designing an appropriate reinforcement configuration. It's important to note that decreasing the ratio of shear span to depth led to a more pronounced brittle failure mode in the composite beam, but is also resulted in an increased shear capacity.
Keyword ：
Arch bridge Arch bridge Composite structure Composite structure Shear performance Shear performance UHPC UHPC
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| GB/T 7714 | Su, Zichen , Su, Jiazhan . Numerical Analysis of Shear Behavior of Composite RC Beam with UHPC Butterfly Webs [J]. | PROCEEDINGS OF ARCH 2023, VOL 1 , 2025 , 33 : 165-173 . |
| MLA | Su, Zichen 等. "Numerical Analysis of Shear Behavior of Composite RC Beam with UHPC Butterfly Webs" . | PROCEEDINGS OF ARCH 2023, VOL 1 33 (2025) : 165-173 . |
| APA | Su, Zichen , Su, Jiazhan . Numerical Analysis of Shear Behavior of Composite RC Beam with UHPC Butterfly Webs . | PROCEEDINGS OF ARCH 2023, VOL 1 , 2025 , 33 , 165-173 . |
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Abstract ：
Concrete filled steel tube (CFST) has been widely used as the arch ribs of CFST arch bridges and embedded arch frameworks of Melan arch bridges. The use of ultra-high strength concrete (UHSC) in CFST could improve the span capacity of these two types of arch bridges. In this case, the core UHSC is under the sealed condition because the two ends of the UHSC-FST arch are embedded in seats or abutments. This paper presented experimental tests on UHSC-FST short columns with two sealed ends, and two common used curing regimes (natural curing and steam curing) were taken as parameters. The test results showed that the compressive cube and prism strength of core UHSC under steam curing were 6.6% and 8.0% lower than those under natural curing, respectively; the average ultimate strength and residual strength of UHSC-FST specimens under steam curing were 5.5% and 22.5% lower than those under natural curing, respectively. The reduction in the ultimate strength is mainly resulted from the reduction in the compressive strength of core UHSC. Therefore, natural curing is recommended for UHSC-FST in practical engineering.
Keyword ：
Arch bridges Arch bridges Curing regimes Curing regimes Sealed condition Sealed condition Short columns Short columns UHSC-FST UHSC-FST
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| GB/T 7714 | Li, Li , Su, Jiazhan , Chen, Baochun . Effect of Curing Regimes on Compressive Strength of Sealed UHSC-FST Short Columns [J]. | PROCEEDINGS OF ARCH 2023, VOL 1 , 2025 , 33 : 273-282 . |
| MLA | Li, Li 等. "Effect of Curing Regimes on Compressive Strength of Sealed UHSC-FST Short Columns" . | PROCEEDINGS OF ARCH 2023, VOL 1 33 (2025) : 273-282 . |
| APA | Li, Li , Su, Jiazhan , Chen, Baochun . Effect of Curing Regimes on Compressive Strength of Sealed UHSC-FST Short Columns . | PROCEEDINGS OF ARCH 2023, VOL 1 , 2025 , 33 , 273-282 . |
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Abstract ：
It is common to precast the ultra-high-performance concrete (UHPC) arch rib segments and to assemble them through dry joints, while the shear behaviors of the dry joints are of great concern for the safety of the whole structure. In this paper, an experimental study on five dry joint specimens was carried out to investigate their shear behaviors, and to lay a foundation for further engineering applications of this bridge type.
Keyword ：
Dry joints Dry joints Experiment Experiment Shear behaviors Shear behaviors Ultra high-performance concrete (UHPC) Ultra high-performance concrete (UHPC)
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| GB/T 7714 | Zhou, Jialiang , Chen, Baochun , Su, Jiazhan et al. Experimental Study on Shear Behaviors of Dry Joints for UHPC Segments [J]. | PROCEEDINGS OF ARCH 2023, VOL 1 , 2025 , 33 : 341-349 . |
| MLA | Zhou, Jialiang et al. "Experimental Study on Shear Behaviors of Dry Joints for UHPC Segments" . | PROCEEDINGS OF ARCH 2023, VOL 1 33 (2025) : 341-349 . |
| APA | Zhou, Jialiang , Chen, Baochun , Su, Jiazhan , Zhang, Dong . Experimental Study on Shear Behaviors of Dry Joints for UHPC Segments . | PROCEEDINGS OF ARCH 2023, VOL 1 , 2025 , 33 , 341-349 . |
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High pile cap foundation is an important component of the supporting structure system for offshore fixed wind power. Due to the harsh marine environmental conditions, the development of high durability foundation caps is of great significance for improving the long-term service performance of the structure. Ultra high performance concrete (UHPC) has high strength and durability characteristics, and has superior application advantages in high-performance engineering structures. This paper proposes a high performance composite bearing cap structure using ultra-high performance concrete as a membrane shell without disassembly. The mechanical behaviors and failure mechanism are analyzed by numerical simulations under the serviceability limit state (SLS) and over-design state (ODS). The results show that the high performance composite bearing cap has better mechanical and deformation properties and excellent economic benefits compared with the normal conrete bearing cap.
Keyword ：
Failure mechanism Failure mechanism High performance composite bearing cap High performance composite bearing cap Mechanical behavior Mechanical behavior Stay-in-place formwork Stay-in-place formwork
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| GB/T 7714 | Liu, Dayong , Wu, Zhongchong , Lin, Lanri et al. Behaviors Analysis of High Performance Composite Bearing Cap Made by UHPC Permanent Form for Offshore Wind Tower Foundation [J]. | PROCEEDINGS OF 6TH INTERNATIONAL CONFERENCE ON CIVIL ENGINEERING AND ARCHITECTURE, VOL 2, ICCEA 2023 , 2024 , 531 : 85-92 . |
| MLA | Liu, Dayong et al. "Behaviors Analysis of High Performance Composite Bearing Cap Made by UHPC Permanent Form for Offshore Wind Tower Foundation" . | PROCEEDINGS OF 6TH INTERNATIONAL CONFERENCE ON CIVIL ENGINEERING AND ARCHITECTURE, VOL 2, ICCEA 2023 531 (2024) : 85-92 . |
| APA | Liu, Dayong , Wu, Zhongchong , Lin, Lanri , Wu, Xiangguo , Zhang, Yun , Wu, Chengen et al. Behaviors Analysis of High Performance Composite Bearing Cap Made by UHPC Permanent Form for Offshore Wind Tower Foundation . | PROCEEDINGS OF 6TH INTERNATIONAL CONFERENCE ON CIVIL ENGINEERING AND ARCHITECTURE, VOL 2, ICCEA 2023 , 2024 , 531 , 85-92 . |
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Given the extensive utilization of composite structures of ultra-high performance concrete (UHPC) and normal concrete (NC) in engineering applications, there has been a growing emphasis on studying the shear failure and mechanical properties analysis of the UHPC-NC interface. U-shaped studs assume a crucial role in reinforcing the UHPC-NC interface, so it is of great significance to analyze the shear failure of UHPC-NC interface with U-shaped studs. To directly observe the bonding failure process between studs and concrete and to determining the failure mechanism of the UHPC-NC interface with U-shaped studs, this paper establishs the three-dimensional finite element model to investigate the local damage evolution and the failure pattern of UHPC-NC incorporating U-shaped studs. The numerical analysis indicates the final failure pattern of the UHPC-NC interface with U-shaped stubs is the fracture of the U-shaped stud.
Keyword ：
composite interface composite interface damage evolution damage evolution FEM FEM U-shaped shear stud U-shaped shear stud
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| GB/T 7714 | Liu, Dayong , Wu, Zhongchong , Wu, Xiangguo et al. Local Damage Evolution Analysis of the Interface Between Prefabricated UHPC Element and Cast-In-Place Concrete [J]. | PROCEEDINGS OF 6TH INTERNATIONAL CONFERENCE ON CIVIL ENGINEERING AND ARCHITECTURE, VOL 1, ICCEA 2023 , 2024 , 530 : 195-200 . |
| MLA | Liu, Dayong et al. "Local Damage Evolution Analysis of the Interface Between Prefabricated UHPC Element and Cast-In-Place Concrete" . | PROCEEDINGS OF 6TH INTERNATIONAL CONFERENCE ON CIVIL ENGINEERING AND ARCHITECTURE, VOL 1, ICCEA 2023 530 (2024) : 195-200 . |
| APA | Liu, Dayong , Wu, Zhongchong , Wu, Xiangguo , Zhang, Yun , Wu, Chengen , Lin, Lanri et al. Local Damage Evolution Analysis of the Interface Between Prefabricated UHPC Element and Cast-In-Place Concrete . | PROCEEDINGS OF 6TH INTERNATIONAL CONFERENCE ON CIVIL ENGINEERING AND ARCHITECTURE, VOL 1, ICCEA 2023 , 2024 , 530 , 195-200 . |
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Abstract ：
本实用新型涉及一种三分底板‑三分竖环组合混凝土承台基础，包括由上至下依次设置的预制UHPC三分竖环、预制UHPC三分底板和钢支撑平台，所述预制UHPC三分竖环上方设有组合承台后浇混凝土结构，组合承台后浇混凝土结构、预制UHPC三分竖环、预制UHPC三分底板之间形成后浇区间。本实用新型结构简单，设计合理，提高承台耐久性，减轻复杂海况和气候对施工作业的影响，提高施工安全性，减小施工难度，提高施工效率，实现工业化设计、生产、装配建造，提高承台综合经济效益。
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| GB/T 7714 | 吴香国 , 林揽日 , 王霄 et al. 三分底板-三分竖环组合混凝土承台基础 : CN202320276428.3[P]. | 2023-02-22 00:00:00 . |
| MLA | 吴香国 et al. "三分底板-三分竖环组合混凝土承台基础" : CN202320276428.3. | 2023-02-22 00:00:00 . |
| APA | 吴香国 , 林揽日 , 王霄 , 张学森 , 吴成恩 , 钟开豪 et al. 三分底板-三分竖环组合混凝土承台基础 : CN202320276428.3. | 2023-02-22 00:00:00 . |
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本实用新型涉及一种装配化UHPC‑RC组合转体上承台实腹式转盘，包括UHPC外模壳和RC内核心，所述的UHPC外模壳由多块尺寸相同的UHPC异形结构装配组成，所述UHPC异形结构包括UHPC竖板、UHPC底板、UHPC撑脚外壳与UHPC加劲肋，所述UHPC竖板均呈弧形且相邻间相互拼接组成转盘的竖环，所述UHPC底板均呈扇形其外端弧面与UHPC竖板固连为一体，相邻UHPC底板间同拼接组成转盘的底板，所述UHPC加劲肋固设在UHPC竖板与UHPC底板内壁交接处，UHPC撑脚外壳固设在UHPC底板底部同经拼接组成转盘的撑脚外壳，所述转盘的竖环、底板和撑脚外壳内绑扎钢筋并进行混凝土浇筑，形成UHPC‑RC组合的实腹式转盘，该实用新型结构简单，施工方便且不需要转盘的模板工程量而节省大量劳力。
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| GB/T 7714 | 苏家战 , 苏子辰 , 杨艳 et al. 一种装配化UHPC-RC组合转体上承台实腹式转盘 : CN202321580966.8[P]. | 2023-06-20 00:00:00 . |
| MLA | 苏家战 et al. "一种装配化UHPC-RC组合转体上承台实腹式转盘" : CN202321580966.8. | 2023-06-20 00:00:00 . |
| APA | 苏家战 , 苏子辰 , 杨艳 , 赵秋 . 一种装配化UHPC-RC组合转体上承台实腹式转盘 : CN202321580966.8. | 2023-06-20 00:00:00 . |
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Abstract ：
本实用新型涉及一种钢管约束UHPC柱轴压承载力试验装置，包括UHPC柱、设于UHPC柱两端的加载钢板，所述UHPC柱从上往下依次分为上端加载段、中间试验段以及下端加载段，所述中间试验段的外侧套设有外包钢管，所述上端加载段和下端加载段的外侧均套设有套环，所述套环的内部具有沿竖向压缩变形的变形件，套环的两端面分别与加载钢板和外包钢管的端面相接触。本实用新型结构设计简单、合理，可避免加载端部的UHPC柱过早发生局部破坏的问题，同时试验时竖向轴压荷载不会作用于中间试验段的外包钢管，从而不影响中间试验段的钢管仅对核心UHPC起约束作用的受力状态，施工方便，可应用于钢管约束UHPC柱的轴压承载力试验研究。
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| GB/T 7714 | 苏家战 , 祝汇丰 , 陈宝春 . 一种钢管约束UHPC柱轴压承载力试验装置 : CN202221273058.X[P]. | 2022-05-26 00:00:00 . |
| MLA | 苏家战 et al. "一种钢管约束UHPC柱轴压承载力试验装置" : CN202221273058.X. | 2022-05-26 00:00:00 . |
| APA | 苏家战 , 祝汇丰 , 陈宝春 . 一种钢管约束UHPC柱轴压承载力试验装置 : CN202221273058.X. | 2022-05-26 00:00:00 . |
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钢-Ultra-high performance concrete (UHPC)组合桥面板在大跨桥梁中具有较多应用，栓钉连接件对其组合作用的发挥起关键作用。为探究钢-UHPC组合板中栓钉抗剪性能，开展了6个栓钉抗剪推出试验，收集了6种抗剪承载力计算方法、5种抗剪滑移预测模型和10种抗剪刚度计算方法，根据试验结果分别进行计算分析。试验结果表明：所有试件中的栓钉均表现为焊缝与根部交界处剪断，UHPC板除在栓钉根部位置出现局部破损外，基本保持完好；栓钉的抗剪滑移曲线经历弹性、弹塑性和下降3个阶段；所有试件最大滑移量均小于3.5 mm，可取0.1 mm作为弹性极限滑移量。计算结果表明：现有部分规范计算UHPC中栓钉抗剪承载力时不考虑焊缝影响，计算结果偏低，根据该文2组试验数据和收集29组有效数据，提出考虑焊缝影响的计算式，建议UHPC中栓钉焊缝贡献系数取1.1；不同抗剪滑移模型预测结果差异大，建议采用反比例函数形式的模型预测，较为精确；栓钉的抗剪刚度取值由于未考虑栓钉实际处于受力状态，计算结果差异大，建议取滑移量0.1 mm对应的刚度作为弹性抗剪刚度；建立了栓钉抗剪滑移模型与抗剪刚度的关系式，在缺少试验数据时可为近似计算提供参考。
Keyword ：
Ultra-high performance concrete Ultra-high performance concrete 抗剪刚度 抗剪刚度 抗剪承载力 抗剪承载力 栓钉 栓钉 滑移模型 滑移模型 焊缝系数 焊缝系数 破坏模式 破坏模式
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| GB/T 7714 | 李聪 , 陈宝春 , 胡文旭 et al. 钢-UHPC组合板栓钉抗剪承载力、滑移与刚度计算 [J]. | 工程力学 , 2023 , 40 (6) : 110-121 . |
| MLA | 李聪 et al. "钢-UHPC组合板栓钉抗剪承载力、滑移与刚度计算" . | 工程力学 40 . 6 (2023) : 110-121 . |
| APA | 李聪 , 陈宝春 , 胡文旭 , 苏家战 . 钢-UHPC组合板栓钉抗剪承载力、滑移与刚度计算 . | 工程力学 , 2023 , 40 (6) , 110-121 . |
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文章以预制UHPC板与钢板采用环氧树脂黏结剂连接的组合结构为对象，开展了连接界面抗剪与抗拉的试验研究。试验结果表明，试件中的环氧树脂黏结剂和UHPC材料本身均保持完好；破坏位置，抗剪试件为黏结剂与钢板交界面，抗拉试件为黏结剂与UHPC的交接面；破坏性质为脆性，交接面出现滑移或分离后快速丧失承载力。抗剪强度受黏结面积影响不大，实测值平均值2.59MPa,抗剪强度设计值为1.36MPa。抗拉强度与黏结面积有关，当试件尺寸由160mm增大至200mm,实测值分别为2.74MPa和1.86MPa,降幅超过30%,抗拉强度设计值为0.78MPa。UHPC中钢纤维掺量在1%～2%范围内对抗拉黏结强度影响可忽略。建立了钢-UHPC组合板有限元模型进行受力分析。分析表明，在轮载作用下，黏结层以受剪为主，沿横桥向最为不利；最不利荷载工况的最大剪应力和竖向拉应力分别1.11MPa和0.15MPa,均低于黏结剂抗剪和抗拉强度设计值。根据试验和实例分析结果，考虑到黏结剂连接脆性破坏特性，建议重视胶结界面的处理，重点关注抗剪强度问题。
Keyword ：
抗剪 抗剪 抗拉 抗拉 有限元分析 有限元分析 环氧黏结剂 环氧黏结剂 预制UHPC板 预制UHPC板 黏结强度 黏结强度 黏结面积 黏结面积
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| GB/T 7714 | 李聪 , 陈宝春 , 谢泽豪 et al. 钢-UHPC组合板环氧黏结界面抗剪与抗拉性能试验 [J]. | 土木工程学报 , 2023 , 56 (01) : 25-36,56 . |
| MLA | 李聪 et al. "钢-UHPC组合板环氧黏结界面抗剪与抗拉性能试验" . | 土木工程学报 56 . 01 (2023) : 25-36,56 . |
| APA | 李聪 , 陈宝春 , 谢泽豪 , 苏家战 . 钢-UHPC组合板环氧黏结界面抗剪与抗拉性能试验 . | 土木工程学报 , 2023 , 56 (01) , 25-36,56 . |
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