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学者姓名：彭桂瀚
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Abstract ：
In this paper, the hysteresis tests of six circular steel reinforced concrete-filled stainless steel tubular (SRCFSST) columns and three circular concrete-filled stainless steel tubular (CFSST) columns were carried out to study the hysteresis behaviors of SRCFSST columns. The main parameter investigated in the tests was the axial load ratio. The tests reveal that the typical damage mode of circular SRCFSST columns is compression-bending damage, including profiled steel buckling, steel tube buckling, and concrete crushing. When the axial load ratio is relatively low, the stainless steel tube can be subjected to tensile rupture. Compared to circular stainless steel tubular concrete specimens, the peak load, displacement ductility coefficient, equivalent damping ratio, cumulative energy dissipation, and flexural stiffness of steel reinforced concrete-filled stainless steel tubular columns improve by an average of 34. 2%, 10. 3%, 20. 4%, 144. 8%, and 3. 0%, respectively. The composite column was simulated using a finite element (FE) model, and a parametric study was conducted using the verified FE model. The parametric study show that the ultimate load-carrying capacity of the columns increases with higher steel content ratio of the internal steel section, higher steel content ratio of the stainless steel tube section, higher yield strength of the steel section, higher yield strength of the stainless steel, higher concrete strength, and larger radius of gyration of the steel section. However, it also found that the peak load decreases with the increasing slenderness ratio and axial load ratio. Finally, the P-Δ restoring force model of the composite column was recommended, and it is shown that the P-Δ restoring force model can accurately predict test results. © 2024 Science Press. All rights reserved.
Keyword ：
Buckling Buckling Columns (structural) Columns (structural) Concrete testing Concrete testing Hydroelasticity Hydroelasticity Steel testing Steel testing Tensile strength Tensile strength Tubular steel structures Tubular steel structures Yield stress Yield stress
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| GB/T 7714 | Wang, Zhibin , Huang, Shutian , Peng, Guihan et al. Hysteresis behaviours of circular steel reinforced concrete-filled stainless steel tubular columns [J]. | Journal of Building Structures , 2024 , 45 (12) : 97-110 . |
| MLA | Wang, Zhibin et al. "Hysteresis behaviours of circular steel reinforced concrete-filled stainless steel tubular columns" . | Journal of Building Structures 45 . 12 (2024) : 97-110 . |
| APA | Wang, Zhibin , Huang, Shutian , Peng, Guihan , Lin, Wanfu , Li, Xinlei . Hysteresis behaviours of circular steel reinforced concrete-filled stainless steel tubular columns . | Journal of Building Structures , 2024 , 45 (12) , 97-110 . |
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为研究内置型钢圆形截面不锈钢管混凝土柱的滞回性能,进行了6根内置型钢圆形截面不锈钢管混凝土柱和3根圆形截面不锈钢管混凝土柱的滞回试验,主要参数为轴压比.试验结果表明:内置型钢圆形截面不锈钢管混凝土柱的破坏模态均为压弯破坏,表现为钢管局部屈曲、型钢局部屈曲和混凝土压碎等,轴压比较小时,其不锈钢管还被拉裂;与圆形不锈钢管混凝土柱相比,其峰值荷载、位移延性系数、等效黏滞阻尼系数、累积耗能和抗弯刚度分别平均提高了34.2％、10.3％、20.4％、144.8％和3.0％.建立了该类组合柱的有限元模型,基于验证的有限元模型开展了参数分析,结果表明,构件的峰值荷载随着内置型钢含钢率、不锈钢管截面含钢率、型钢屈服强度、不锈钢屈服强度、混凝土强度以及型钢截面回转半径的增大而增大,但随着长细比及轴压比的增大而减小.建议了该类组合柱的P-Δ恢复力模型,其计算结果与试验结果吻合较好.
Keyword ：
内置型钢 内置型钢 圆形不锈钢管混凝土 圆形不锈钢管混凝土 恢复力模型 恢复力模型 有限元模型 有限元模型 滞回试验 滞回试验
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| GB/T 7714 | 王志滨 , 黄书恬 , 彭桂瀚 et al. 内置型钢圆形截面不锈钢管混凝土柱滞回性能研究 [J]. | 建筑结构学报 , 2024 , 45 (12) : 97-110 . |
| MLA | 王志滨 et al. "内置型钢圆形截面不锈钢管混凝土柱滞回性能研究" . | 建筑结构学报 45 . 12 (2024) : 97-110 . |
| APA | 王志滨 , 黄书恬 , 彭桂瀚 , 林万福 , 李鑫雷 . 内置型钢圆形截面不锈钢管混凝土柱滞回性能研究 . | 建筑结构学报 , 2024 , 45 (12) , 97-110 . |
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本实用新型涉及拱肋防腐技术领域，尤其涉及一种对中、上承式哑铃形钢管混凝土拱桥拱脚的防腐结构，包括套置于拱脚拱肋外侧的外套钢管，所述外套钢管与拱脚拱肋之间形成的空腔内填充有环氧砂浆，外套钢管外包裹有纤维布，外套钢管上位于上部的端口焊接有与拱脚拱肋紧贴的密封钢板。该拱桥拱脚结构能够达到多层防腐蚀效果，延长使用寿命。
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| GB/T 7714 | 彭桂瀚 , 汪安星 , 姚保民 et al. 一种对中、上承式哑铃形钢管混凝土拱桥拱脚的防腐结构 : CN202321832375.5[P]. | 2023-07-13 00:00:00 . |
| MLA | 彭桂瀚 et al. "一种对中、上承式哑铃形钢管混凝土拱桥拱脚的防腐结构" : CN202321832375.5. | 2023-07-13 00:00:00 . |
| APA | 彭桂瀚 , 汪安星 , 姚保民 , 王亚丽 , 罗慧苓 , 黄国兴 et al. 一种对中、上承式哑铃形钢管混凝土拱桥拱脚的防腐结构 : CN202321832375.5. | 2023-07-13 00:00:00 . |
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本实用新型涉及一种装配式加设钢管桁梁与旧混凝土横梁节点结构，包括旧混凝土横梁、节点钢骨架、上钢板以及加设钢管桁梁，所述旧混凝土横梁贯穿节点钢骨架，所述节点钢骨架的侧面与纵向设置的加设钢管桁梁相固联；所述上钢板设置在旧混凝土横梁的顶面且与节点钢骨架的上端固联。该节点结构使加设钢管桁梁与旧混凝土横梁形成整体共同受力，提高桥道系整体刚度，使得吊杆受力分布更加均匀，提高行车舒适度；节点钢骨架、上钢板及加设钢管桁梁等均采用工厂预制，现场吊装，通过螺栓连接形成装配式节点构造，施工实现了装配式流水作业，简化了施工工序，缩短了工期，消除了现场不利因素影响，保证了施工质量。
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| GB/T 7714 | 彭桂瀚 , 王洁 , 刘宏博 et al. 装配式加设钢管桁梁与旧混凝土横梁节点结构 : CN202120253117.6[P]. | 2021-01-29 . |
| MLA | 彭桂瀚 et al. "装配式加设钢管桁梁与旧混凝土横梁节点结构" : CN202120253117.6. | 2021-01-29 . |
| APA | 彭桂瀚 , 王洁 , 刘宏博 , 刘忠宇 , 黄国兴 . 装配式加设钢管桁梁与旧混凝土横梁节点结构 : CN202120253117.6. | 2021-01-29 . |
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为了研究方套圆中空夹层不锈钢管混凝土短柱轴压承载力,采用Rasmussen本构模型,基于试验建立基准有限元模型,以空心率、不锈外钢管厚度、混凝土与内钢管强度等为主要影响参数开展有限元分析,提出了该类型结构承载力修正计算简式。分析结果表明:研究参数范围内,内钢管强度对结构受力影响不大;混凝土强度、不锈外钢管厚度与承载力呈线性正比关系;采用高强内钢管中空夹层结构承载力随空心率加大先增后减,空心率0.45时承载力最高;提出的修正计算简式可较好预测结构承载力。
Keyword ：
不锈钢 不锈钢 中空夹层钢管混凝土 中空夹层钢管混凝土 承载力 承载力 有限元 有限元 轴压 轴压
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| GB/T 7714 | 彭桂瀚 , 宋春生 , 黄国兴 . 方套圆中空夹层不锈钢管混凝土短柱轴压承载力有限元分析 [J]. | 福建建筑 , 2021 , (04) : 38-42 . |
| MLA | 彭桂瀚 et al. "方套圆中空夹层不锈钢管混凝土短柱轴压承载力有限元分析" . | 福建建筑 04 (2021) : 38-42 . |
| APA | 彭桂瀚 , 宋春生 , 黄国兴 . 方套圆中空夹层不锈钢管混凝土短柱轴压承载力有限元分析 . | 福建建筑 , 2021 , (04) , 38-42 . |
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本发明涉及一种后设钢纵梁与旧混凝土横梁的连接节点构造，包括外包钢板、精轧螺纹钢筋、植入钢筋，旧混凝土横梁沿纵向的两侧面外均布设有外包钢板，外包钢板的顶缘与底缘均沿横向间隔开设有若干纵向通孔，精轧螺纹钢筋两端分别由两侧相对应的纵向通孔穿出后通过螺母将两侧的外包钢板锁固，外包钢板中间开设有若干植筋孔，旧混凝土横梁上植筋孔设有与植筋孔同轴心的钻孔，植入钢筋内端穿过植筋孔插入钻孔内，后设钢纵梁端部与外包钢板外侧面焊接，旧混凝土横梁的顶缘与底缘浇筑环氧砂浆层进行填平，精轧螺纹钢筋包裹在环氧砂浆层内，本节点构造施工方便，后设钢纵梁、外包钢板与旧混凝土横梁共同受力，提高了纵横梁节点承载力。
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| GB/T 7714 | 彭桂瀚 , 杨凡超 . 后设钢纵梁与旧混凝土横梁的连接节点构造 : CN202021561999.4[P]. | 2020-07-31 . |
| MLA | 彭桂瀚 et al. "后设钢纵梁与旧混凝土横梁的连接节点构造" : CN202021561999.4. | 2020-07-31 . |
| APA | 彭桂瀚 , 杨凡超 . 后设钢纵梁与旧混凝土横梁的连接节点构造 : CN202021561999.4. | 2020-07-31 . |
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本实用新型涉及一种不锈钢钢筋混凝土板加劲哑铃型组合柱，包括两不锈钢钢管、两不锈钢缀板、两不锈钢钢筋混凝土板，两不锈钢缀板焊接在两不锈钢钢管外壁，连接两根不锈钢钢管，形成沿钢管形心连线对称的哑铃型柱；不锈钢钢管内均填充有海水海砂再生混凝土；两不锈钢缀板和两不锈钢钢管外壁围成哑铃型柱腹腔，腹腔内不填充混凝土；不锈钢钢筋混凝土板均设于两不锈钢缀板的外侧，结构简单。
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| GB/T 7714 | 彭桂瀚 , 郑鸿铭 , 杨凡超 . 一种不锈钢钢筋混凝土板加劲哑铃型组合柱 : CN201922058167.4[P]. | 2019/11/26 . |
| MLA | 彭桂瀚 et al. "一种不锈钢钢筋混凝土板加劲哑铃型组合柱" : CN201922058167.4. | 2019/11/26 . |
| APA | 彭桂瀚 , 郑鸿铭 , 杨凡超 . 一种不锈钢钢筋混凝土板加劲哑铃型组合柱 : CN201922058167.4. | 2019/11/26 . |
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Concrete filled steel tubular (CFST) composite girder is a new type of structures for bridge constructions. The existing design codes cannot be used to predict the thermal stress in the CFST truss girder structures under solar radiation. This study is to develop the temperature gradient curves for predicting thermal stress of the structure based on field and laboratory monitoring data. An in-field testing had been carried out on Ganhaizi Bridge for over two months. Thermal couples were installed at the cross section of the CFST truss girder and the continuous data was collected every 30 minutes. A typical temperature gradient mode was then extracted by comparing temperature distributions at different times. To further verify the temperature gradient mode and investigate the evolution of temperature fields, an outdoor experiment was conducted on a 1: 8 scale bridge model, which was installed with both thermal couples and strain gauges. The main factors including solar radiation and ambient temperature on the different positions were studied. Laboratory results were consistent with that from the in-field data and temperature gradient curves were obtained from the in-field and laboratory data. The relationship between the strain difference at top and bottom surfaces of the concrete deck and its corresponding temperature change was also obtained and a method based on curve fitting was proposed to predict the thermal strain under elevated temperature. The thermal stress model for CFST composite girder was derived. By the proposed model, the thermal stress was obtained from the temperature gradient curves. The results using the proposed model were agreed well with that by finite element modelling.
Keyword ：
CFST composite girder CFST composite girder experimental study experimental study temperature gradient temperature gradient thermal stress thermal stress
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| GB/T 7714 | Peng, Guihan , Nakamura, Shozo , Zhu, Xinqun et al. An experimental and numerical study on temperature gradient and thermal stress of CFST truss girders under solar radiation [J]. | COMPUTERS AND CONCRETE , 2017 , 20 (5) : 605-616 . |
| MLA | Peng, Guihan et al. "An experimental and numerical study on temperature gradient and thermal stress of CFST truss girders under solar radiation" . | COMPUTERS AND CONCRETE 20 . 5 (2017) : 605-616 . |
| APA | Peng, Guihan , Nakamura, Shozo , Zhu, Xinqun , Wu, Qingxiong , Wang, Hailiang . An experimental and numerical study on temperature gradient and thermal stress of CFST truss girders under solar radiation . | COMPUTERS AND CONCRETE , 2017 , 20 (5) , 605-616 . |
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以江西余兴贵大桥为背景工程,采用有限元分析方法,研究多跨中承式系杆拱桥中的通长系杆与分跨短系杆作用,讨论合理系杆布置方案.结果表明,边跨系杆减小拱脚负弯矩,可改善刚构区受力性能;中跨系杆增大拱脚负弯矩,不利于主拱肋受力;通长系杆作用与边跨系杆相同.从平衡推力、结构内力影响及施工便利等方面综合考虑,边跨系杆与通长系杆的组合为合理方案.
Keyword ：
有限元 有限元 系杆布置 系杆布置 系杆拱桥 系杆拱桥 边跨系杆 边跨系杆 通长系杆 通长系杆
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| GB/T 7714 | 彭桂瀚 , 朱承坚 , 林伟 . 多跨中承式系杆拱桥的系杆组合布置方案研究 [J]. | 武汉理工大学学报（交通科学与工程版） , 2017 , 41 (2) : 213-217 . |
| MLA | 彭桂瀚 et al. "多跨中承式系杆拱桥的系杆组合布置方案研究" . | 武汉理工大学学报（交通科学与工程版） 41 . 2 (2017) : 213-217 . |
| APA | 彭桂瀚 , 朱承坚 , 林伟 . 多跨中承式系杆拱桥的系杆组合布置方案研究 . | 武汉理工大学学报（交通科学与工程版） , 2017 , 41 (2) , 213-217 . |
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Abstract ：
建立实桥有限元模型,研究蝴蝶拱桥稳定性能,对不同荷载作用、矢跨比、主拱倾角、拱肋连杆位置及构件刚度等参数进行分析.分析结果表明:选择合理主拱矢跨比与外倾角可使蝴蝶拱获得更优稳定性;跨中处肋间连杆对稳定性影响大;构件刚度对结构稳定的影响度依次为主拱肋、肋间连杆及副拱肋.
Keyword ：
参数分析 参数分析 有限元 有限元 结构稳定性 结构稳定性 蝴蝶型拱桥 蝴蝶型拱桥
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| GB/T 7714 | 彭桂瀚 , 高伟国 , 吴庆雄 . 蝴蝶型拱桥稳定性参数分析 [J]. | 福州大学学报（自然科学版） , 2017 , 45 (4) : 512-516 . |
| MLA | 彭桂瀚 et al. "蝴蝶型拱桥稳定性参数分析" . | 福州大学学报（自然科学版） 45 . 4 (2017) : 512-516 . |
| APA | 彭桂瀚 , 高伟国 , 吴庆雄 . 蝴蝶型拱桥稳定性参数分析 . | 福州大学学报（自然科学版） , 2017 , 45 (4) , 512-516 . |
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