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学者姓名：李雄彦
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摘要 ：
A new beam -column transfer joint is proposed, which consists of an upper column with a concrete -filled steel tube column (CFST), a lower column with a variable -diameter steel -concrete column (SRC), and a reinforced concrete beam. The new transfer joint is mainly set on the roof of the basement of a high-rise building structure. Compared with traditional transfer joints, it reduces the amount of steel used, increases the use space of the basement, and improves the seismic performance of the structure. New transfer joint and traditional joint were tested under cyclic loading to investigate response of the proposed joint. The main performance indicators studied are hysteretic response, energy dissipation, ductility, and stiffness degradation. Research results show that the energy consumption and carrying capacity of the new transfer joint are higher than those of the traditional joint. The correctness of the finite element analysis was verified through the test results, and a parametric analysis was carried out on this basis. It was found that the diameter reduction position of the steel tube and the length of the corbels of the lower column have little impact on the seismic performance of the new transfer joint. The thickness of the steel tube has a greater impact on the seismic performance of the new transfer joints. The peak bearing capacity is increased by about 17 %. Finally, according to the formula given by the specification, the embedding effect of the new transfer joint and the traditional joints are compared. The effect of the new transfer joints is better than that of the traditional one, which can provide a reference for future basement design of high-rise building structures.
关键词 ：
New transfer joint New transfer joint Seismic performance Seismic performance Experiment Experiment Steel tube concrete column Steel tube concrete column FE analysis FE analysis
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| GB/T 7714 | Lu, Xiuliang , Li, Xiongyan , Wang, Wei et al. Experimental and simulation study on seismic performance of the new beam-column transfer joint as the embedded part of the basement roof [J]. | STRUCTURES , 2024 , 65 . |
| MLA | Lu, Xiuliang et al. "Experimental and simulation study on seismic performance of the new beam-column transfer joint as the embedded part of the basement roof" . | STRUCTURES 65 (2024) . |
| APA | Lu, Xiuliang , Li, Xiongyan , Wang, Wei , Xue, Suduo , Zhang, Xiongdi . Experimental and simulation study on seismic performance of the new beam-column transfer joint as the embedded part of the basement roof . | STRUCTURES , 2024 , 65 . |
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摘要 ：
Soil-structure interaction (SSI), which characterizes the dynamic interaction between a structure and its surrounding soil, is of great significance to the seismic assessment of structures. Past research endeavors have undertaken analytical, numerical, and experimental studies to gain a thorough understanding of the influences of SSI on the seismic responses of a wide array of structures, including but not limited to nuclear power plants, frame structures, bridges, and spatial structures. Thereinto, large-span spatial structures generally have much more complex configurations, and the influences of SSI may be more pronounced. To this end, this paper aims to provide a state-of-the-art review of the SSI in the seismic assessment of large-span spatial structures. It begins with the modelling of soil medium, followed by the research progress of SSI in terms of numerical simulations and experiments. Subsequently, the focus shifts towards high-lighting advancements in understanding the seismic responses of large-span spatial structures considering SSI. Finally, some discussions are made on the unresolved problems and the possible topics for future studies.
关键词 ：
seismic assessment seismic assessment large-span spatial structure large-span spatial structure soil-structure interaction soil-structure interaction state-of-the-art review state-of-the-art review
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| GB/T 7714 | Zhan, Puyu , Xue, Suduo , Li, Xiongyan et al. Seismic Assessment of Large-Span Spatial Structures Considering Soil-Structure Interaction (SSI): A State-of-the-Art Review [J]. | BUILDINGS , 2024 , 14 (4) . |
| MLA | Zhan, Puyu et al. "Seismic Assessment of Large-Span Spatial Structures Considering Soil-Structure Interaction (SSI): A State-of-the-Art Review" . | BUILDINGS 14 . 4 (2024) . |
| APA | Zhan, Puyu , Xue, Suduo , Li, Xiongyan , Sun, Guojun , Ma, Ruisheng . Seismic Assessment of Large-Span Spatial Structures Considering Soil-Structure Interaction (SSI): A State-of-the-Art Review . | BUILDINGS , 2024 , 14 (4) . |
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摘要 ：
Ring springs have the advantages of simple structure, small space occupation and strong buffering capacity, so a ring spring vertical isolation device (RSVID) is proposed. The structure and working principle of RSVID are explained. In order to apply RSVID to the numerical model of the overall structure, OpenSees is redeveloped and a mechanical model that simulates RSVID is added to its material library. The design goal of this study is to extend the natural vibration period of the isolated structure, which is used to determine the stiffness of ring spring. Subsequently, RSVID and friction pendulum isolation bearings are combined to form a 3D isolation system which is applied to 60-meter span single-layer spherical reticulated domes, and then the numerical model of isolated structure and original structures are established in OpenSees software. The simulation results show that the isolation effect of 3D-isolated structure with RSVID is better than that of horizontal isolated structure.
关键词 ：
3D isolation 3D isolation Single-layer spherical reticulated dome Single-layer spherical reticulated dome Vertical isolation Vertical isolation Ring spring Ring spring
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| GB/T 7714 | Wang, Wei , Li, Xiongyan , Liu, Guanchen . Study on vertical isolation effect of ring springs in single-layer spherical reticulated dome structures [J]. | STRUCTURES , 2024 , 65 . |
| MLA | Wang, Wei et al. "Study on vertical isolation effect of ring springs in single-layer spherical reticulated dome structures" . | STRUCTURES 65 (2024) . |
| APA | Wang, Wei , Li, Xiongyan , Liu, Guanchen . Study on vertical isolation effect of ring springs in single-layer spherical reticulated dome structures . | STRUCTURES , 2024 , 65 . |
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摘要 ：
大跨双榀预应力CFRP悬带索桁结构，属于一种新型CFRP悬带索桁架屋盖承重结构体系。该屋盖承重结构体系包括主桁架，竖向支撑体系和连系杆件。主桁架由两榀CFRP悬带索桁架和平衡杆组成，竖向支撑体系由支撑柱和管桁架组成，CFRP悬带索桁架包括上CFRP悬带索、下CFRP悬带索、竖直CFRP悬带索和悬带索夹；通过张拉上CFRP悬带索使CFRP悬带索桁架获得承载能力，每个主桁架中两榀CFRP悬带索桁架通过平衡杆连接使主桁架形成受力的整体，能实现屋盖的大跨度布置；双层CFRP悬带索能承受水平、竖向荷载和风吸力，主承重构件CFRP悬带索具有轻质、高强、耐腐蚀等优势，可实现屋盖结构的大跨越能力和稳定工作。
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| GB/T 7714 | 薛素铎 , 李轩直 , 李雄彦 . 大跨双榀预应力CFRP悬带索桁结构 : CN202310708502.9[P]. | 2023-06-15 . |
| MLA | 薛素铎 et al. "大跨双榀预应力CFRP悬带索桁结构" : CN202310708502.9. | 2023-06-15 . |
| APA | 薛素铎 , 李轩直 , 李雄彦 . 大跨双榀预应力CFRP悬带索桁结构 : CN202310708502.9. | 2023-06-15 . |
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摘要 ：
本发明涉及一种多目标状态融合的索网结构自动化设计方法及装置，方法包括依据设计目标形态由形状调整函数自动调整形状系数对角阵获得合理初始态位形；依据设计目标要求由刚度调整函数自动调整张力系数得到合理的结构变形和拉索面积，通过验算拉索应力是否小于强度设计值校核预设定拉索应力的取值是否合理；由刚度设计结果和强度校核结果获得拉索下料长度；提出了形状系数和张力系数的概念，将初始态的索网位形设计与荷载态的刚度设计和强度校核融合到了一个设计框架内，建立了四个判别条件和三个调整函数，实现了索网结构的自动化设计；本发明可以显著提高索网结构的设计效率，降低设计难度。
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| GB/T 7714 | 薛素铎 , 李轩直 , 李雄彦 . 一种多目标状态融合的索网结构自动化设计方法及装置 : CN202310376756.5[P]. | 2023-04-11 . |
| MLA | 薛素铎 et al. "一种多目标状态融合的索网结构自动化设计方法及装置" : CN202310376756.5. | 2023-04-11 . |
| APA | 薛素铎 , 李轩直 , 李雄彦 . 一种多目标状态融合的索网结构自动化设计方法及装置 : CN202310376756.5. | 2023-04-11 . |
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摘要 ：
本实用新型公开了一种用于固定相交叉条带拉索的装配式索夹，其特征在于：包括底盘、可旋转盘、上盖板、下盖板和定位块，所述底盘的下方与一组所述上盖板、下盖板相连接，所述底盘的上方与所述可旋转盘相连接，且所述底盘与所述可旋转盘之间通过定位块进行定位连接，所述可旋转盘的上方与另一组所述上盖板、下盖板相连接。本实用新型能够实现相交叉条带夹角的角度任意设置，也能够实现相交叉条带在节点的有效连接，不会轻易脱离。本实用新型中的构件简单，安装便捷。
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| GB/T 7714 | 李轩直 , 薛素铎 , 李雄彦 . 一种用于固定相交叉条带拉索的装配式索夹 : CN202321306067.9[P]. | 2023-05-26 . |
| MLA | 李轩直 et al. "一种用于固定相交叉条带拉索的装配式索夹" : CN202321306067.9. | 2023-05-26 . |
| APA | 李轩直 , 薛素铎 , 李雄彦 . 一种用于固定相交叉条带拉索的装配式索夹 : CN202321306067.9. | 2023-05-26 . |
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摘要 ：
本发明涉及结构构件试验技术领域，提供一种便捷拆装式多用途二维双向自平衡加载设备，包括底座，横向加载组件和纵向加载组件，底座设置支撑底框和加强板，横向加载组件包括驱动机构，传动杆，力传感器，连接件和定位杆，纵向加载组件包括升降机构和纵向加载机构，纵向加载机构顶部设置有压板；该设备的水平拉力或压力由底座承担，其竖向拉力或压力由压板和底座承担，整体实现自平衡受力。该设备加载方式灵活多变，除单向水平或竖向加载外，可以实现水平和竖向的二维双向加载，包括拉‑压，拉‑拉和压‑压；该设备使用便捷，拆装方便，易于更换，能满足结构构件的多种加载需求。
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| GB/T 7714 | 薛素铎 , 李轩直 , 李雄彦 et al. 一种便捷拆装式多用途二维双向自平衡加载设备 : CN202310262560.3[P]. | 2023-03-17 . |
| MLA | 薛素铎 et al. "一种便捷拆装式多用途二维双向自平衡加载设备" : CN202310262560.3. | 2023-03-17 . |
| APA | 薛素铎 , 李轩直 , 李雄彦 , 凌立鹏 , 高海峰 . 一种便捷拆装式多用途二维双向自平衡加载设备 : CN202310262560.3. | 2023-03-17 . |
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摘要 ：
Purpose - Instantaneous unloading with equal force is usually used to simulate the sudden failure of cables. This simulation method with equivalent force requires obtaining the magnitude and direction of the force for the failed cable in the normal state. It is difficult, however, to determine the magnitude or direction of the equivalent force when the shape of the cable is complex (space curve). This model of equivalent force may be difficult to establish. Thus, a numerical simulation method, the instantaneous temperature rise method, was proposed to address the dynamic response caused by failures of the cables with complex structural form. Design/methodology/approach - This method can instantly reduce the cable force to zero through the instantaneous temperature rise process of the cable. Combined with theoretical formula and finite element model, the numerical calculation principle and two key parameters (temperature rise value and temperature rise time) of this method were detailed. The validity of this approach was verified by comparing it with equivalent force models. Two cable-net case with saddle curved surfaces were presented. Their static failure behaviors were compared with the dynamic failure behaviors calculated by this method. Findings - This simulation method can effectively address the structural dynamic response caused by cable failure and may be applied to all cable structures. Originality/value - An instantaneous temperature rise method (ITRM) is proposed and verified. Its calculation theory is detailed. Two key parameters, temperature rise value and temperature rise time, of this method are discussed and the corresponding reference values are recommended.
关键词 ：
Instantaneous temperature rise method Instantaneous temperature rise method Cable structure Cable structure Dynamic response Dynamic response Numerical method Numerical method Cable failure Cable failure
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| GB/T 7714 | Li, Xuanzhi , Xue, Suduo , Li, Xiongyan et al. A numerical method to solve structural dynamic response caused by cable failure [J]. | ENGINEERING COMPUTATIONS , 2023 , 40 (9-10) : 2049-2067 . |
| MLA | Li, Xuanzhi et al. "A numerical method to solve structural dynamic response caused by cable failure" . | ENGINEERING COMPUTATIONS 40 . 9-10 (2023) : 2049-2067 . |
| APA | Li, Xuanzhi , Xue, Suduo , Li, Xiongyan , Liu, Guanchen , Liu, Renjie . A numerical method to solve structural dynamic response caused by cable failure . | ENGINEERING COMPUTATIONS , 2023 , 40 (9-10) , 2049-2067 . |
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摘要 ：
Single-layer reticulated shells are widely used as roof structures of gymnasiums. However, the seismic performance of the single-layer reticulated shell with a center-hung scoreboard (CHS), which is a kind of large-scale display device suspended on the roof center of many gymnasiums, has not been fully studied. In this paper, the influence of the CHS on the seismic response of single-layer reticulated shells is investigated. Single-layer reticulated shells and the CHS-integrated models including flexibly suspended models and simplified models are established, respectively, using the Abaqus software. The responses of integrated models are calculated by an explicit dynamic method under 3D seismic action. The axial forces of the flexibly suspended case and the simplified case where the scoreboard is simplified as fixed masses on the roof structure are compared. Compared with those in the simplified model, the axial forces of some shell members and some nodal acceleration in the flexibly suspended model under multiple seismic excitations would increase by as high as 125% and 315%, respectively. It turns out that seismic responses of the single-layer reticulated shell would be underestimated if a simplified model was used for seismic response analysis. The region near the boundary and the region neighbouring the support platform members are the most affected regions due to the combination of the horizontal swing effect and the vertical impact effect of the CHS under multiple seismic excitations.
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| GB/T 7714 | Liu, Renjie , Ji, Ce , Li, Xiongyan et al. On the Seismic Performance of the Single-Layer Reticulated Shell with a Center-Hung Scoreboard under Multiple Seismic Excitations [J]. | SHOCK AND VIBRATION , 2023 , 2023 . |
| MLA | Liu, Renjie et al. "On the Seismic Performance of the Single-Layer Reticulated Shell with a Center-Hung Scoreboard under Multiple Seismic Excitations" . | SHOCK AND VIBRATION 2023 (2023) . |
| APA | Liu, Renjie , Ji, Ce , Li, Xiongyan , Wang, Chao , Wang, Guangyong . On the Seismic Performance of the Single-Layer Reticulated Shell with a Center-Hung Scoreboard under Multiple Seismic Excitations . | SHOCK AND VIBRATION , 2023 , 2023 . |
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摘要 ：
In order to meet the demand of watching games, the LED display, i.e., the center-hung scoreboard, has been widely used in large stadiums. To investigate the mechanical properties of the suspend-dome structure with the center-hung scoreboard under the action of earthquake, a dynamic scaled model with a geometric similarity ratio of 1:20 was designed. And the shaking table test was performed to study the seismic performance under the actions of 8 degree frequent, seismic precautionary and rare earthquakes. The acceleration, displacement and internal force responses under three-dimensional seismic were analyzed. The results show that the Z-directional acceleration amplification factors of the reticulated shell vertex region are significant and decrease fastest under actions of rare earthquakes, which is the weak point of the model. The influence of the center-hung scoreboard on the structure cannot be ignored in the study of seismic performance. The vertical displacement is the largest in the center and gradually decreases from inside to outside. The maximum displacement under actions of frequent earthquakes is 2.061 mm. The maximum displacement under actions of seismic precautionary earthquakes is 1/ 556, the maximum displacement under actions of rare earthquakes is 1/242, both of which satisfy the requirement of seismic specifications. The maximum internal force of the ring rod first decreases and then in-creases from the center to the surroundings. The internal force of the radial rod gradually increases from the edge to the center. Under actions of rare earthquakes, the center-hung scoreboard has more influence on the internal force of the rod. The accuracy of the finite element modeling method is verified by comparing the simulation results and test results of the scaled model, and the reliability of the scaled model is verified by comparing the simulation results of the scaled model and the prototype structure. The structure does not collapse under actions of 8 degree rare earthquakes and does not show apparent failure. The seismic principle that "the structure hasn't damaged under frequent earthquake, repairable under precautionary earthquake, and doesn't collapse under rare earthquake" is reached, thus the structural design of the Lanzhou Olympic Sports Complex is reasonable.
关键词 ：
Seismic performance Seismic performance Center-hung scoreboard Center-hung scoreboard Shaking table test Shaking table test Suspend-dome structure Suspend-dome structure
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| GB/T 7714 | Lu, Zhen , Xue, Suduo , Li, Xiongyan et al. Shaking table test on suspend-dome structure with the center-hung scoreboard under three-dimensional seismic [J]. | STRUCTURES , 2023 , 50 : 10-22 . |
| MLA | Lu, Zhen et al. "Shaking table test on suspend-dome structure with the center-hung scoreboard under three-dimensional seismic" . | STRUCTURES 50 (2023) : 10-22 . |
| APA | Lu, Zhen , Xue, Suduo , Li, Xiongyan , Liu, Renjie . Shaking table test on suspend-dome structure with the center-hung scoreboard under three-dimensional seismic . | STRUCTURES , 2023 , 50 , 10-22 . |
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