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学者姓名：李振宝
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Abstract ：
A cantilever block wall-panel attachment strip (CBW) flexible connection node was designed to connect precast concrete (PC) exterior wall panels to steel frames. To investigate the performance of the CBW flexible connection node and PC exterior wall panels during earthquakes, a partial two-storey steel frame was extracted from an actual engineering structure, and a full-scale steel frame-exterior wall panel shaking-table model was designed. Two sets of shaking-table tests were conducted under seismic intensity 7, 8, and 9 (Chinese Seismic Intensity Scale) earthquakes. The acceleration and displacement responses of the composite wall panel, open window panel, and integral wall panel along the in-plane and out-of-plane motions were analysed. The acceleration amplification factors of the PC exterior wall panels ranged from 0.753 to 1.400 (in-plane) and from 0.998 to 2.199 (out-of-plane). The CBW flexible connection node had a deformation capacity that could coordinate the deformation of the exterior wall panel and prevent severe damage. The surfaces of the PC exterior wall panels remained intact during a very strong seismic intensity 9 earthquake.
Keyword ：
shaking-table test shaking-table test PC exterior wall panel PC exterior wall panel CBW flexible connection node CBW flexible connection node acceleration amplification factor acceleration amplification factor steel frame steel frame
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| GB/T 7714 | Yang, Beibei , Li, Zhenbao , Liu, Ping et al. Full Size Two-Layer Steel Frame-Exterior Wall Panel Shaking-Table Test [J]. | BUILDINGS , 2024 , 14 (3) . |
| MLA | Yang, Beibei et al. "Full Size Two-Layer Steel Frame-Exterior Wall Panel Shaking-Table Test" . | BUILDINGS 14 . 3 (2024) . |
| APA | Yang, Beibei , Li, Zhenbao , Liu, Ping , Ma, Hua , Yang, Jiulong , Kang, Zhicheng . Full Size Two-Layer Steel Frame-Exterior Wall Panel Shaking-Table Test . | BUILDINGS , 2024 , 14 (3) . |
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Abstract ：
In this study, the axial compressive performance of steel-concrete-steel composite walls (SCSCWs) with novel dumbbell-shaped connectors (DSCs) was investigated. Six specimens were designed and tested, and the study parameters included the physical dimensions and arrangement schemes of DSCs. The failure mode, axial displacement, steel strain, and bearing capacity of the specimens were analyzed. The external steel plates exhibited local buckling, and the internal concrete was crushed. The variation in the physical dimensions of the DSC had little effect on the failure modes, and increasing the number of connectors improved the bearing capacity of the specimens. The axial load-displacement relationships of the SCSCWs were calculated considering the effects of local buckling and post-buckling behavior of steel faceplates in the constitutive relationship. The theoretical curves were in good agreement with the experimental results. A simplified formula for the bearing capacity was proposed, and the average ratio of the experimental to theoretical peak loads was 0.98, indicating that the simplified formula had high accuracy. ABAQUS software was used to simulate the axial behavior of SCSCWs. The simulated results were similar to those of the experiments, and the average ratio of the experimental bearing capacity to the corresponding simulated value was 0.99. Based on the benchmark model, further parameter analyses were conducted to study the effects of material strength and physical dimensions on the axial behavior of SCSCWs. Increasing the material strength and sectional thickness could increase the bearing capacity, and the failure mode was not affected. The theoretical initial stiffness of the SCSCWs was calculated, and the accuracy of the formulas was verified using the simulated results.
Keyword ：
Axial behavior Axial behavior Theoretical analysis Theoretical analysis Local buckling Local buckling Steel-concrete-steel composite wall Steel-concrete-steel composite wall Finite element analysis Finite element analysis
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| GB/T 7714 | Zhao, Yukun , Li, Zhenbao , Ma, Hua . Experimental and numerical studies on compressive behavior of steel-concrete-steel composite walls considering local buckling and post-buckling effect [J]. | THIN-WALLED STRUCTURES , 2023 , 182 . |
| MLA | Zhao, Yukun et al. "Experimental and numerical studies on compressive behavior of steel-concrete-steel composite walls considering local buckling and post-buckling effect" . | THIN-WALLED STRUCTURES 182 (2023) . |
| APA | Zhao, Yukun , Li, Zhenbao , Ma, Hua . Experimental and numerical studies on compressive behavior of steel-concrete-steel composite walls considering local buckling and post-buckling effect . | THIN-WALLED STRUCTURES , 2023 , 182 . |
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Abstract ：
提出了基于Python和图形处理器（GPU）数值求解的实时混合试验系统。将土-结相互作用系统作为试验模型，使用Python-GPU代替CPU数值求解，对提出的实时混合试验系统进行了仿真与试验验证。研究结果表明，使用Python-GPU对无条件稳定算法求解，积分步长20 ms时GPU实时求解模型自由度超过24000，是同一台计算机CPU求解规模的7倍左右，提升了实时混合试验的试验能力。
Keyword ：
实时混合试验 实时混合试验 数值积分算法 数值积分算法 图形处理器 图形处理器 Python Python 求解效率 求解效率
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| GB/T 7714 | 董晓辉 , 唐贞云 , 李振宝 et al. 应用Python-GPU求解的实时混合试验方法研究 [J]. | 振动工程学报 , 2023 , 36 (02) : 517-525 . |
| MLA | 董晓辉 et al. "应用Python-GPU求解的实时混合试验方法研究" . | 振动工程学报 36 . 02 (2023) : 517-525 . |
| APA | 董晓辉 , 唐贞云 , 李振宝 , 杜修力 . 应用Python-GPU求解的实时混合试验方法研究 . | 振动工程学报 , 2023 , 36 (02) , 517-525 . |
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Abstract ：
This paper studies the shear behavior of U-shaped steel-concrete composite beams (USCCBs), which include eight full-scale beam specimens with different loading directions, loading positions, and shear span ratios. The USCCB is composed of reinforcing bars, encased concrete, U-shaped steel plate, headed studs, and novel dumbbell-shaped connectors. The three-point loading tests were carried out to confirm the shear failure mode and force-transfer mechanism of a concentrated load. The diagonal compression failure of encased concrete, welding fracture and local buckling of U-shaped steel plate, and cracking and spalling of concrete slab were observed in the experiments. The displacement ductility factor of eight specimens was between 1.55 and 3.61, and a rapid drop of the load did not occur in this study. The concrete slab reached ultimate compressive strength, the U-shaped steel plate mainly reached yield strength, and the steel-concrete relative slip or separation did not occur before the load reached peak value. The loading direction and shear span ratio have more effect on the bearing capacity of specimens. The novel connector controls the buckling range of the steel plate, but it has less effect on the bearing capacity. The transfer path of the shear load was measured and analyzed by strain data, and the included angle was between 33.5 degrees and 49.2 degrees. The calculation method of shear capacity for USCCB specimens was proposed, and the average ratio of calculation/test was 1.04.
Keyword ：
Theoretical formula Theoretical formula Shear failure Shear failure Loading direction Loading direction U-shaped steel plate U-shaped steel plate Composite beam Composite beam
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| GB/T 7714 | Zhao, Yukun , Li, Zhenbao , Ma, Hua et al. Shear Behavior of U-Shaped Steel-Concrete Composite Beams with Positive and Negative Loading [J]. | INTERNATIONAL JOURNAL OF CIVIL ENGINEERING , 2022 , 20 (10) : 1229-1246 . |
| MLA | Zhao, Yukun et al. "Shear Behavior of U-Shaped Steel-Concrete Composite Beams with Positive and Negative Loading" . | INTERNATIONAL JOURNAL OF CIVIL ENGINEERING 20 . 10 (2022) : 1229-1246 . |
| APA | Zhao, Yukun , Li, Zhenbao , Ma, Hua , Kan, Jiping , Zhang, Nana . Shear Behavior of U-Shaped Steel-Concrete Composite Beams with Positive and Negative Loading . | INTERNATIONAL JOURNAL OF CIVIL ENGINEERING , 2022 , 20 (10) , 1229-1246 . |
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Abstract ：
本发明涉及一种基于COMSOL的地震超材料能带结构和频域分析方法，包括以下步骤：构建地震超材料几何模型，并赋予材料参数；设置Floquet周期边界条件；选择合适的网格剖分方法对几何模型进行网格划分；进行参数化扫描，并进行分析；对结构的频域进行分析。通过COMSOL实现了能够快速求解频散曲线，从而进一步进行频域分析，得到有限排周期结构的衰减域，对于地震超材料的减震性能的评价具有重要意义。
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| GB/T 7714 | 石南南 , 刘晗 , 李振宝 et al. 一种基于COMSOL的地震超材料能带结构和频域分析方法 : CN202211403459.7[P]. | 2022-11-10 . |
| MLA | 石南南 et al. "一种基于COMSOL的地震超材料能带结构和频域分析方法" : CN202211403459.7. | 2022-11-10 . |
| APA | 石南南 , 刘晗 , 李振宝 , 赵卓 , 张伟晨 . 一种基于COMSOL的地震超材料能带结构和频域分析方法 : CN202211403459.7. | 2022-11-10 . |
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Abstract ：
本实用新型公开了一种CRS嵌套式三维周期隔震基础，包括隔震基础本体，隔震基础本体设置在建筑物的底端，隔震基础本体包括若干个结构单胞，隔震基础本体由结构单胞沿x、y、z三个垂直方向向外周期延拓而成，结构单胞为边长2m、厚度1m的长方体，结构单胞包括外裹层、内裹层和核心，内裹层设置在外裹层内部的中心位置，核心设置在内裹层内部的中心位置，外裹层为混凝土套层，内裹层为橡胶层，核心为实心钢环。本实用新型采用上述结构的CRS嵌套式三维周期隔震基础，能够解决传统的隔震结构结构复杂不易于维修以及隔震效果差的问题。
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| GB/T 7714 | 石南南 , 刘晗 , 李振宝 et al. 一种CRS嵌套式三维周期隔震基础 : CN202222771462.6[P]. | 2022-10-20 . |
| MLA | 石南南 et al. "一种CRS嵌套式三维周期隔震基础" : CN202222771462.6. | 2022-10-20 . |
| APA | 石南南 , 刘晗 , 李振宝 , 纪金豹 , 罗方慧 . 一种CRS嵌套式三维周期隔震基础 : CN202222771462.6. | 2022-10-20 . |
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Abstract ：
使用图形处理器（GPU）代替传统中央处理器（CPU）作为数值求解硬件，建立基于LABVIEW-MATLAB-GPU的实时子结构试验架构。以土-结相互作用系统为载体，通过数值仿真与试验对该架构的性能进行验证。试验与仿真结果表明，本文方法将实时子结构试验中数值子结构求解自由度提高到27000，提升了数值模型求解规模，拓展了实时子结构试验应用范围。
Keyword ：
图形处理器 图形处理器 实时子结构试验 实时子结构试验 振动台 振动台 有限元模拟 有限元模拟 数值积分算法 数值积分算法
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| GB/T 7714 | 董晓辉 , 唐贞云 , 李振宝 et al. 应用GPU求解的实时子结构试验架构与性能验证 [J]. | 振动工程学报 , 2022 , 35 (01) : 64-71 . |
| MLA | 董晓辉 et al. "应用GPU求解的实时子结构试验架构与性能验证" . | 振动工程学报 35 . 01 (2022) : 64-71 . |
| APA | 董晓辉 , 唐贞云 , 李振宝 , 杜修力 . 应用GPU求解的实时子结构试验架构与性能验证 . | 振动工程学报 , 2022 , 35 (01) , 64-71 . |
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Abstract ：
In this study, six steel-concrete-steel composite wall (SCSCW) specimens have been designed and manufactured, and their out-of-plane flexural behaviors under combined axial and horizontal loads are experimentally studied. The study parameters include the connector arrangement scheme and applied axial load. The effects of these parameters on the failure modes, experimental load-displacement curves, bearing capacities, ductility co-efficients, stiffness, energy dissipation capacities, and strain distributions of the specimens are analyzed. All specimens exhibit sectional flexural failure. The failure phenomena include the out-of-plane local buckling, concrete crushing, and welding fracture of the steel plates. These specimens show excellent ductility with an average ductility coefficient 2.27. The strength degradation coefficients of the specimens are >0.85. Increasing the number of connectors can restrict the local buckling of external steel plates, and the bearing capacities of the specimens are also improved. The connector arrangement scheme and axial load significantly influence the secant stiffness of the specimens during the initial stage of the experiments. When the connector arrangement schemes are identical, the higher the axial load, the better the energy dissipation capacity of the specimens. A simplified calculation model for the flexural capacity of SCSCWs is proposed considering the effects of local buckling and side plates, which has high accuracy and efficiency, and average ratio between the calculated and experimental peak loads is 0.96. A brief design example for the SCSCWs is provided to illustrate the design process considering the axial and out-of-plane loads.
Keyword ：
Connector Connector Out -of -plane flexural behavior Out -of -plane flexural behavior Steel -concrete -steel composite walls (SCSCWs) have high bearing Steel -concrete -steel composite walls (SCSCWs) have high bearing Steel -concrete -steel composite walls Steel -concrete -steel composite walls Local buckling Local buckling Calculation model Calculation model
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| GB/T 7714 | Zhao, Yukun , Li, Zhenbao , Wang, Lihui et al. Experimental study on out-of-plane flexural behavior of steel-concrete-steel composite walls [J]. | JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH , 2022 , 198 . |
| MLA | Zhao, Yukun et al. "Experimental study on out-of-plane flexural behavior of steel-concrete-steel composite walls" . | JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH 198 (2022) . |
| APA | Zhao, Yukun , Li, Zhenbao , Wang, Lihui , Tang, Zhenyun , Ma, Hua . Experimental study on out-of-plane flexural behavior of steel-concrete-steel composite walls . | JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH , 2022 , 198 . |
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Abstract ：
针对支承大跨度屋盖钢管柱的受力特点,进行了3个低轴压比钢管柱在水平往复荷载下的模型试验.采用非线性有限元法对钢管柱的变形性能进行计算分析,分别考察长细比、径厚比和轴压比对钢管柱屈服变形角和极限变形角的影响.试验结果表明:当轴压比为0.2左右时,钢管柱在水平往复荷载作用下,钢管柱的滞回曲线均为饱满的梭形.当径厚比较小时,钢管柱塑性变形发展减缓,损伤程度下降,耗能能力增强;当长细比较小时,钢管柱塑性变形发展加快,耗能能力减弱.钢管柱进入弹塑性阶段后,底部发生环向外凸变形,在达到极限承载力时,柱底外鼓非常显著.屈服变形角和极限变形角均远大于规范限值.有限元分析结果表明:钢管柱的屈服变形角与轴压比、长...
Keyword ：
有限元分析 有限元分析 试验 试验 轴压比 轴压比 径厚比 径厚比 变形能力 变形能力 钢管柱 钢管柱 长细比 长细比
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| GB/T 7714 | 范重 , 柴会娟 , 陈宇辰 et al. 圆钢管柱变形性能研究 [J]. | 天津大学学报(自然科学与工程技术版) , 2021 , 54 (02) : 133-143 . |
| MLA | 范重 et al. "圆钢管柱变形性能研究" . | 天津大学学报(自然科学与工程技术版) 54 . 02 (2021) : 133-143 . |
| APA | 范重 , 柴会娟 , 陈宇辰 , 张康伟 , 李振宝 , 张广平 et al. 圆钢管柱变形性能研究 . | 天津大学学报(自然科学与工程技术版) , 2021 , 54 (02) , 133-143 . |
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Abstract ：
Earthquake action is multi-dimensional and random. The anti-seismic capability of beam-column joints in reinforced concrete (RC) frame structures under arbitrary horizontal direction loading may be lower than the design capability for unidirectional earthquake actions. To date, detailed calculation methods for the shear capability and shearing performance of joints in RC frames under arbitrary horizontal direction loading have not been reported. For this reason, in this work, the shear mechanism of beam-column joints in an RC frame under arbitrary horizontal direction loading is analysed. This study shows that two oblique compression zones form at the corners of the joint when a synthetic shear force is imposed on the joint, and an oblique compression strut is formed in the core area of the joint, which is different from the shear mechanism of a joint under unidirectional loading. Furthermore, a shear capacity calculation model is established based on the strut-and-tie model. The predicted values of the shear capability in this work are in good agreement with the reported experimental results.
Keyword ：
modelling modelling shear shear joints joints
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| GB/T 7714 | Cui, Yanwei , Ma, Hua , Song, Kun et al. Shear capacity of a reinforced concrete frame joint subjected to arbitrary horizontal loading [J]. | MAGAZINE OF CONCRETE RESEARCH , 2021 , 73 (13) : 649-660 . |
| MLA | Cui, Yanwei et al. "Shear capacity of a reinforced concrete frame joint subjected to arbitrary horizontal loading" . | MAGAZINE OF CONCRETE RESEARCH 73 . 13 (2021) : 649-660 . |
| APA | Cui, Yanwei , Ma, Hua , Song, Kun , Li, Zhenbao , Tang, Zhenyun . Shear capacity of a reinforced concrete frame joint subjected to arbitrary horizontal loading . | MAGAZINE OF CONCRETE RESEARCH , 2021 , 73 (13) , 649-660 . |
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