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学者姓名:董锐
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Abstract :
Effects of design parameters characterizing bridge flutter sensitivity on flutter critical wiiul speed am important tools fur exploring briilge Duller iitcchanism aiul improving flutter [lerformance. Here, In assist designers in efficiently am! accurately obtaining influence laws of structural dynamic characteristics and flutter derivatives on flu Hit performance (if large-span bridge during design phase, a bridge 3-D flu Hit sensitivity analysis utclhml based on © 2024 Chinese Vibration Engineering Society. All rights reserved.
Keyword :
Computational efficiency Computational efficiency Eigenvalues and eigenfunctions Eigenvalues and eigenfunctions Finite difference method Finite difference method Flutter (aerodynamics) Flutter (aerodynamics) Sensitivity analysis Sensitivity analysis Structural dynamics Structural dynamics Torsional stress Torsional stress Wind Wind
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GB/T 7714 | Weng, Xiangying , Dong, Rui , Ge, Yaojun . Sensitivity analysis of 3-D flutter of large-span bridge based on differential method [J]. | Journal of Vibration and Shock , 2024 , 43 (7) : 205-213 . |
MLA | Weng, Xiangying 等. "Sensitivity analysis of 3-D flutter of large-span bridge based on differential method" . | Journal of Vibration and Shock 43 . 7 (2024) : 205-213 . |
APA | Weng, Xiangying , Dong, Rui , Ge, Yaojun . Sensitivity analysis of 3-D flutter of large-span bridge based on differential method . | Journal of Vibration and Shock , 2024 , 43 (7) , 205-213 . |
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为明确闽台地区平均风速剖面的合理取值,本文以"平均风速剖面特征参数是确定结构风荷载极值的基础性参数"为前提,提出了一种平均风速剖面预测的新方法:风荷载极值等效法。以福建沿海8个测风塔的实测风速数据和某高层建筑为例,利用不同极值分布模型及参数估计方法,对闽台沿海地区展开了平均风速剖面预测研究,并将预测结果与两岸现行规范建议值和统计均值等进行了比较。结果表明:(1)与D-H模型相比,指数律模型与对数律模型更适合闽台沿海地区平均风速剖面预测,建议使用指数律模型;(2)采用本文方法预测得到的平均风速剖面特征参数大于现行规范,同时也大于统计均值,表明目前平均风速剖面取值可能偏于危险。
Keyword :
台风 台风 平均风速剖面 平均风速剖面 风荷载极值等效法 风荷载极值等效法
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GB/T 7714 | 梁斯宇 , 董锐 . 基于实测数据的平均风速剖面预测方法研究 [C] //第十三届全国随机振动理论与应用学术会议暨第十一届全国随机动力学学术会议 . 2023 . |
MLA | 梁斯宇 等. "基于实测数据的平均风速剖面预测方法研究" 第十三届全国随机振动理论与应用学术会议暨第十一届全国随机动力学学术会议 . (2023) . |
APA | 梁斯宇 , 董锐 . 基于实测数据的平均风速剖面预测方法研究 第十三届全国随机振动理论与应用学术会议暨第十一届全国随机动力学学术会议 . (2023) . |
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为明确强风环境中下行式移动模架的抗风安全性,以东南沿海某50 m跨下行式移动模架为研究对象,采用气弹模型风洞试验和数值计算相结合的方式,对其颤振、涡振和抖振性能进行了较系统的研究.结果表明:结构竖向位移和扭转角分别是移动模架合模和开模工况时的控制性因素;合模工况时,移动模架主体结构能够满足8级强风(20.7 m/s)的作业要求,且能够抵抗14级风(46.1 m/s)作用;开模工况时,在措施得当的情况下主体结构能够满足8级强风的作业要求;多模态耦合频域抖振计算法和《公路桥梁抗风设计规范》中的等效静阵风荷载法均可以用于移动模架的抖振响应计算,且具有一定的精度,推荐采用精度较高的多模态耦合频域抖振计算法.
Keyword :
抗风性能 抗风性能 气弹模型 气弹模型 移动模架 移动模架 风洞试验 风洞试验 风致振动 风致振动
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GB/T 7714 | 董锐 , 梁斯宇 , 左文华 et al. 强风环境中下行式移动模架的抗风性能 [J]. | 哈尔滨工业大学学报 , 2022 , 54 (9) : 122-133 . |
MLA | 董锐 et al. "强风环境中下行式移动模架的抗风性能" . | 哈尔滨工业大学学报 54 . 9 (2022) : 122-133 . |
APA | 董锐 , 梁斯宇 , 左文华 , 翁祥颖 , 刘俊 . 强风环境中下行式移动模架的抗风性能 . | 哈尔滨工业大学学报 , 2022 , 54 (9) , 122-133 . |
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为明确闽台两地基本风速的合理取值,以台北市某气象站1961-2015年的实测风速数据为研究对象,基于两岸现行建筑结构抗风标准,分别选用年最大风速法和台风风速法取样,采用极值I型分布模型,对不同气候模式下的基本风速进行了比较研究.结果表明:对于相同的风速观测数据,根据台湾建筑抗风标准TB2015获得的极值风速略小于现行建筑抗风标准GB50009获得的极值风速(福建),而基本风速正好相反,但是两者之间的差别均很小;台风气候模式下的极值风速/基本风速预测值要大于混合气侯模式下的对应值,且与实测极值/基本风速最为接近,误差均小于0.5%;对于受台风影响严重的海峡两岸地区,建议采用以台风风速法取样的台风...
Keyword :
台湾海峡 台湾海峡 台风 台风 基本风速 基本风速 季风 季风 极值风速 极值风速 混合气候 混合气候 重现期 重现期
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GB/T 7714 | 董锐 , 李狄钦 , 罗元隆 et al. 不同气候下海峡两岸建筑抗风标准之基本风速比较 [J]. | 湖南大学学报(自然科学版) , 2021 , 48 (03) : 119-127 . |
MLA | 董锐 et al. "不同气候下海峡两岸建筑抗风标准之基本风速比较" . | 湖南大学学报(自然科学版) 48 . 03 (2021) : 119-127 . |
APA | 董锐 , 李狄钦 , 罗元隆 , 刘国买 . 不同气候下海峡两岸建筑抗风标准之基本风速比较 . | 湖南大学学报(自然科学版) , 2021 , 48 (03) , 119-127 . |
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A reciprocating low-cycle pseudo-static loading test on three reinforced concrete (RC) piles was performed in the Structural Laboratory of Fuzhou University to study their failure modes and seismic behaviors. The modified calculations of lateral deformation and soil pressure along the piles were further verified based on the test results. In this article, a displacement-based simplified calculation for pile-soil interaction of piles was proposed based on the shear equilibrium and test results, and then it was compared with the traditional m method and p-y curve method. The test results show that m method overestimated the bearing capacity of piles, leading to a lower safety factor for the piles. Therefore, it was not suitable to calculate the internal force and lateral displacement under large displacement. Moreover, the ductility of prestress high-strength concrete pipe piles or RC piles would be overestimated by the p-y curve method. Although the p-y curve method took into account the nonlinearity of soil, the calculated force-lateral displacement curve still showed a significant difference with the test results under large deformation. The test results further show that the modified calculation of lateral displacement and soil pressure can be preferably validated by test results, which indicates that the displacement law of laterally loaded pile can be accurately assessed. Furthermore, the proposed displacement-based simplified calculation showed a good agreement with the test values in terms of internal forces and force-lateral displacement curve. Therefore, it was recommended for analyzing the cyclic behavior of laterally loaded pile foundations considering soil-pile interaction in integral abutments jointless bridges (IAJBs).
Keyword :
displacement-based simplified calculation displacement-based simplified calculation m method m method pile-soil interaction pile-soil interaction p-y curve method p-y curve method reciprocating low-cycle pseudo-static test reciprocating low-cycle pseudo-static test reinforced concrete pile reinforced concrete pile
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GB/T 7714 | Chen, Baochun , Luo, Xiaoye , Huang, Fuyun et al. Displacement-Based Simplified Calculation for Pile-Soil Interaction under Reciprocating Low-Cycle Pseudo-Static Loads [J]. | JOURNAL OF TESTING AND EVALUATION , 2021 , 49 (4) : 2609-2626 . |
MLA | Chen, Baochun et al. "Displacement-Based Simplified Calculation for Pile-Soil Interaction under Reciprocating Low-Cycle Pseudo-Static Loads" . | JOURNAL OF TESTING AND EVALUATION 49 . 4 (2021) : 2609-2626 . |
APA | Chen, Baochun , Luo, Xiaoye , Huang, Fuyun , Dong, Rui , Xue, Junqing . Displacement-Based Simplified Calculation for Pile-Soil Interaction under Reciprocating Low-Cycle Pseudo-Static Loads . | JOURNAL OF TESTING AND EVALUATION , 2021 , 49 (4) , 2609-2626 . |
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为明确闽台两地基本风速的合理取值,以台北市某气象站1961-2015年的实测风速数据为研究对象,基于两岸现行建筑结构抗风标准,分别选用年最大风速法和台风风速法取样,采用极值I型分布模型,对不同气候模式下的基本风速进行了比较研究.结果表明:对于相同的风速观测数据,根据台湾建筑抗风标准TB2015获得的极值风速略小于现行建筑抗风标准GB50009获得的极值风速(福建),而基本风速正好相反,但是两者之间的差别均很小;台风气候模式下的极值风速/基本风速预测值要大于混合气候模式下的对应值,且与实测极值/基本风速最为接近,误差均小于0.5%;对于受台风影响严重的海峡两岸地区,建议采用以台风风速法取样的台风气候模式下的基本风速.
Keyword :
台湾海峡 台湾海峡 台风 台风 基本风速 基本风速 季风 季风 极值风速 极值风速 混合气候 混合气候 重现期 重现期
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GB/T 7714 | 董锐 , 李狄钦 , 罗元隆 et al. 不同气候下海峡两岸建筑抗风标准之基本风速比较 [J]. | 湖南大学学报(自然科学版) , 2021 , 48 (3) : 119-127 . |
MLA | 董锐 et al. "不同气候下海峡两岸建筑抗风标准之基本风速比较" . | 湖南大学学报(自然科学版) 48 . 3 (2021) : 119-127 . |
APA | 董锐 , 李狄钦 , 罗元隆 , 刘国买 . 不同气候下海峡两岸建筑抗风标准之基本风速比较 . | 湖南大学学报(自然科学版) , 2021 , 48 (3) , 119-127 . |
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本实用新型提供一种桥梁节段模型风洞实验弹性悬挂系统,包括刚性节段模型,所述刚性节段模型两侧设置有悬挂系统,每个悬挂系统包括上下对称设置的支承刚架以及位于两个支承刚架之间的刚性支承连杆,所述刚性支承连杆通过三组上下对称的弹簧与刚架相连,三组弹簧从前到后依次为边弹簧、中心弹簧及边弹簧。本装置结构简单,设计合理,通过调节边弹簧、中心弹簧的刚度,实现边弹簧吊臂长度的有效调节,避免部分模型因吊臂长度过短而加大实验误差和实验难度的问题,尤其对于扭弯频率比较小的主梁节段模型具有显著优势。
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GB/T 7714 | 董锐 , 梁斯宇 , 左文华 et al. 一种桥梁节段模型风洞实验弹性悬挂系统 : CN202021995712.9[P]. | 2020-09-14 . |
MLA | 董锐 et al. "一种桥梁节段模型风洞实验弹性悬挂系统" : CN202021995712.9. | 2020-09-14 . |
APA | 董锐 , 梁斯宇 , 左文华 , 翁祥颖 . 一种桥梁节段模型风洞实验弹性悬挂系统 : CN202021995712.9. | 2020-09-14 . |
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In order to study the effectiveness of L-shaped bracings in stability of long-span CFST truss arch bridges, the mechanical behavior and the stability of long-span CFST truss arch bridges are analyzed and compared through theoretical analysis and numerical calculation based on Hejiang River Third Bridge.In addition, the significance of L-shaped bracings in the stability of truss arch bridge is checked by orthogonal test and multi-factor variance analysis methods.The results show that (1) for the topology optimization types of L-shaped bracings, the main arch has the best stability when the K-shaped diagonal bracing is set at the top chord of main arch rib and close to arch foot; (2) compared with the K-shaped, X-shaped or double-cross-shaped bracings, the L-shaped bracings may have less influences on the maximum value of axial force, in-plane bending moment, out-of-plane bending moment, stress and the vertical deformation of the main arch, but they may affect the horizontal deformation of the main arch to some extent.(3) When the parameters are within the reasonable ranges, the replacement of K-shaped, X-shaped or double-cross-shaped bracings with the L-shaped bracings may not significantly reduce the stability of bifurcation buckling and the extreme-value point of the long-span CFST truss arch bridges.Hence, the L-shaped bracings can be chosen by engineers in the stability design of such arch bridges without no special emphasis. © 2020, Editorial Office of China Civil Engineering Journal. All right reserved.
Keyword :
Arch bridges Arch bridges Arches Arches Bending moments Bending moments Computer aided engineering Computer aided engineering Deformation Deformation Pipeline bends Pipeline bends Stability Stability Trusses Trusses
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GB/T 7714 | Dong, Rui , Chen, Yazhao , Zheng, Muran et al. Stability analysis of long-span CFST truss arch bridges with L-shaped bracings [J]. | China Civil Engineering Journal , 2020 , 53 (5) : 89-99 and 128 . |
MLA | Dong, Rui et al. "Stability analysis of long-span CFST truss arch bridges with L-shaped bracings" . | China Civil Engineering Journal 53 . 5 (2020) : 89-99 and 128 . |
APA | Dong, Rui , Chen, Yazhao , Zheng, Muran , Huang, Fuyun , Chen, Baochun . Stability analysis of long-span CFST truss arch bridges with L-shaped bracings . | China Civil Engineering Journal , 2020 , 53 (5) , 89-99 and 128 . |
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为研究新型L形横撑在大跨度钢管混凝土(CFST)桁式拱桥稳定中的有效性,以合江三桥为工程背景,采用数值计算和理论分析相结合的方式对其受力性能和稳定性进行比较分析,并利用正交试验和方差分析方法对L形横撑在大跨度CFST桁式拱桥稳定中的显著性进行了检验.结果 表明:①对于L形拓扑横撑类型,当K形斜撑设置在主拱肋上弦且靠近拱脚一侧时,主拱的稳定性最好;②与常用的K形、X形和米字形横撑相比,L形横撑对主拱最大轴力、最大面内弯矩、最大面外弯矩、最大应力和竖向变形的影响均较小,仅对主拱水平变形有一定影响;③当各参数在合理的取值范围内时,使用L形横撑代替常用的K形、X形或米字形横撑,不会显著降低大跨度CFST桁式拱桥的分支点和极值点稳定性,工程师在该类拱桥的稳定设计中可以放心选用.
Keyword :
L形横撑 L形横撑 方差分析 方差分析 有限单元法 有限单元法 桁式拱 桁式拱 正交试验 正交试验 稳定 稳定 钢管混凝土 钢管混凝土
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GB/T 7714 | 董锐 , 陈亚钊 , 郑穆然 et al. 带L形横撑的大跨CFST桁式拱桥稳定性分析 [J]. | 土木工程学报 , 2020 , 53 (5) : 89-99,128 . |
MLA | 董锐 et al. "带L形横撑的大跨CFST桁式拱桥稳定性分析" . | 土木工程学报 53 . 5 (2020) : 89-99,128 . |
APA | 董锐 , 陈亚钊 , 郑穆然 , 黄福云 , 陈宝春 . 带L形横撑的大跨CFST桁式拱桥稳定性分析 . | 土木工程学报 , 2020 , 53 (5) , 89-99,128 . |
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为研究覆土厚度对框架式地道桥受力性能的影响,本文采用理论分析和有限元模拟的方法对某框架桥在施工阶段和成桥阶段多种荷载工况下的变形和应力进行了分析比较.结果表明:(1)随着顶板覆土厚度增加,框架桥最大竖向变形和最大应力均有变小的趋势,但最大横向变形和最大轴向变形基本没有变化;(2)降温是框架桥最大竖向变形的最不利工况,升温是框架桥最大应力、最大横向和轴向变形的最不利工况;(3)施工阶段,中间腹板最大应力随顶板覆土厚度的增加而增大,但增长的幅度很小.降温工况是此时的最不利工况;(4)温度作用是影响框架桥变形和应力的最主要因素,顶板覆土厚度的影响相对较小,在满足列车荷载有效分布厚度的前提下,不必着重考虑.
Keyword :
变形 变形 应力 应力 成桥阶段 成桥阶段 施工阶段 施工阶段 有限单元法 有限单元法 框架式地道桥 框架式地道桥 覆土厚度 覆土厚度
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GB/T 7714 | 董锐 , 李狄钦 , 詹刚毅 et al. 覆土厚度对框架式地道桥受力性能影响 [J]. | 新疆大学学报(自然科学版) , 2020 , 37 (1) : 94-101 . |
MLA | 董锐 et al. "覆土厚度对框架式地道桥受力性能影响" . | 新疆大学学报(自然科学版) 37 . 1 (2020) : 94-101 . |
APA | 董锐 , 李狄钦 , 詹刚毅 , 翁祥颖 , 黄福云 . 覆土厚度对框架式地道桥受力性能影响 . | 新疆大学学报(自然科学版) , 2020 , 37 (1) , 94-101 . |
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