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Abstract ：
A cold-formed steel shear wall with centre-corrugated steel sheathing (CCSS-CFS shear wall) was innovatively developed to meet the requirement of earthquake resistance for multi-rise CFS structures in regions at high seismic risk. This wall exhibits superior seismic performance in comparison with the conventional CFS shear wall. Five full-size specimens were tested under cyclic loading to evaluate their failure mode, shear strength, lateral stiffness, ductility, energy dissipation, as well as degradation of bearing capacity and stiffness. Additionally, the effects of CFS frame structure forms, screw spacing, and corrugated steel sheet thicknesses on the behaviour and failure mechanism of shear walls were analysed. The seismic performance objectives corresponding to intact, slight, moderate, and severe damage were also determined. The results revealed that the main failure modes of shear walls were plastic buckling of corrugated steel sheathing and local buckling of the end composite stud. Optimising configurations such as setting up stiffening plates on the end composite stud, installing transverse braces, and increasing screw spacing between composite studs and sheathing significantly improved their behaviour. The strength of corrugated steel sheathing after plastic buckling should be taken into consideration for the lateral design of the CCSS-CFS shear wall. A calculation method was also proposed in order to determine the elastic global buckling shear strength of the CCSS-CFS shear wall - which exhibited high accuracy. Finally, nominal shear strength, a resistance factor, and a safety factor were recommended.
Keyword ：
Failure mechanism Failure mechanism Nominal shear strength Nominal shear strength Calculation method Calculation method Seismic performance Seismic performance CCSS-CFS shear wall CCSS-CFS shear wall
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| GB/T 7714 | Xie, Zhiqiang , Shi, Leilei , Peng, Lingyun et al. Behaviour of a Cold-Formed Steel Shear Wall with Centre-Corrugated Steel Sheathing under Cyclic Loading [J]. | ENGINEERING STRUCTURES , 2024 , 318 . |
| MLA | Xie, Zhiqiang et al. "Behaviour of a Cold-Formed Steel Shear Wall with Centre-Corrugated Steel Sheathing under Cyclic Loading" . | ENGINEERING STRUCTURES 318 (2024) . |
| APA | Xie, Zhiqiang , Shi, Leilei , Peng, Lingyun , Zhang, Shi , Zhou, Daxing , Zhang, Xiangdong et al. Behaviour of a Cold-Formed Steel Shear Wall with Centre-Corrugated Steel Sheathing under Cyclic Loading . | ENGINEERING STRUCTURES , 2024 , 318 . |
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Abstract ：
A passive double triangular damping (DTD) device with equivalent negative stiffness is proposed in this study. The DTD device consists of transmission systems and triangular damping systems. A mechanical model was developed to describe the force-displacement relationship of a triangular damping system, while the feasibility of both the system and model was evaluated using experimental tests. The theoretical analysis demonstrated that DTD was a form of damping with equivalent negative stiffness, and the equivalent expressions were generated. Finally, the prospect of application in the DTD-controlled isolation system was explored using numerical simulation. The results revealed that DTD was more effective than a lead-rubber bearing in reducing isolator displacement and rooftop acceleration when subjected to ground motions.
Keyword ：
triangular damping triangular damping equivalent negative stiffness equivalent negative stiffness passive passive numerical simulation numerical simulation isolation system isolation system
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| GB/T 7714 | Sun, Tianwei , Peng, Lingyun , Li, Xiaojun et al. Developing and Applying a Double Triangular Damping Device with Equivalent Negative Stiffness for Base-Isolated Buildings [J]. | BUILDINGS , 2023 , 13 (12) . |
| MLA | Sun, Tianwei et al. "Developing and Applying a Double Triangular Damping Device with Equivalent Negative Stiffness for Base-Isolated Buildings" . | BUILDINGS 13 . 12 (2023) . |
| APA | Sun, Tianwei , Peng, Lingyun , Li, Xiaojun , Guan, Yaxi . Developing and Applying a Double Triangular Damping Device with Equivalent Negative Stiffness for Base-Isolated Buildings . | BUILDINGS , 2023 , 13 (12) . |
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Abstract ：
本实用新型涉及一种具有负刚度特征的三角形滞回阻尼装置，属于工程振动控制技术领域。所述阻尼装置包括铁桶、铁砂、铁杆、桶盖、橡胶垫以及连接板；其中，所述铁桶内部装有铁砂，铁桶顶部设置有桶盖，所述铁杆穿过桶盖插入到铁桶内的铁砂中；所述桶盖上部还密封有橡胶垫，且橡胶垫无缝套设在所述铁杆外表面；所述铁杆上部螺栓连接有所述连接板。本实用新型可应用于结构减振控制中，具有良好稳定的负刚度特性，通过降低结构的等效刚度，增大结构阻尼，实现控制结构位移和加速度响应的目的。
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| GB/T 7714 | 官亚西 , 彭凌云 , 孙天威 . 具有负刚度特征的三角形滞回阻尼装置 : CN202221008115.1[P]. | 2022-04-27 . |
| MLA | 官亚西 et al. "具有负刚度特征的三角形滞回阻尼装置" : CN202221008115.1. | 2022-04-27 . |
| APA | 官亚西 , 彭凌云 , 孙天威 . 具有负刚度特征的三角形滞回阻尼装置 : CN202221008115.1. | 2022-04-27 . |
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Abstract ：
本发明涉及一种具有负刚度特征的三角形滞回阻尼装置，属于工程振动控制技术领域。所述阻尼装置包括铁桶、铁砂、铁杆、桶盖、橡胶垫以及连接板；其中，所述铁桶内部装有铁砂，铁桶顶部设置有桶盖，所述铁杆穿过桶盖插入到铁桶内的铁砂中；所述桶盖上部还密封有橡胶垫，且橡胶垫无缝套设在所述铁杆外表面；所述铁杆上部螺栓连接有所述连接板。本发明可应用于结构减振控制中，具有良好稳定的负刚度特性，通过降低结构的等效刚度，增大结构阻尼，实现控制结构位移和加速度响应的目的。
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| GB/T 7714 | 官亚西 , 彭凌云 , 孙天威 et al. 具有负刚度特征的三角形滞回阻尼装置 : CN202210458046.2[P]. | 2022-04-27 . |
| MLA | 官亚西 et al. "具有负刚度特征的三角形滞回阻尼装置" : CN202210458046.2. | 2022-04-27 . |
| APA | 官亚西 , 彭凌云 , 孙天威 , 关宇 . 具有负刚度特征的三角形滞回阻尼装置 : CN202210458046.2. | 2022-04-27 . |
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Abstract ：
为研究钢框架结构阻尼支座楼梯的抗震性能,设计并制作缩尺比例为1∶2的阻尼支座楼梯和固定支座楼梯试验模型,在恒定轴力作用下对其分别进行拟静力试验。试验中研究了不同楼梯的破坏形态、滞回性能、耗能性能、变形能力等,分析了不同楼梯的工作机理。试验结果表明:阻尼支座楼梯通过阻尼支座耗能,改变了楼梯的传力途径和内力分布,而固定支座楼梯通过构件自身损伤耗能,破坏阶段固定支座楼梯的平台板、斜梯梁节点和梯梁等变形较大,框架梁屈曲严重导致不能继续加载;两种楼梯的滞回曲线都较为饱满,阻尼支座楼梯加载初期刚度较小,后期其刚度达到甚至超过固定支座楼梯,有较好的承载能力;阻尼支座水平方向滑动位移较大,有利于阻尼器发挥作用...
Keyword ：
钢框架结构 钢框架结构 拟静力试验 拟静力试验 阻尼支座楼梯 阻尼支座楼梯 抗震性能 抗震性能
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| GB/T 7714 | 彭凌云 , 李姣姣 , 康迎杰 et al. 钢框架结构阻尼支座楼梯抗震性能研究 [J]. | 建筑结构学报 , 2021 , 42 (01) : 84-92 . |
| MLA | 彭凌云 et al. "钢框架结构阻尼支座楼梯抗震性能研究" . | 建筑结构学报 42 . 01 (2021) : 84-92 . |
| APA | 彭凌云 , 李姣姣 , 康迎杰 , 孙天威 , 张琪 . 钢框架结构阻尼支座楼梯抗震性能研究 . | 建筑结构学报 , 2021 , 42 (01) , 84-92 . |
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Abstract ：
A new type of eccentric wheel layered friction damper was proposed in order to solve a series of problems induced by the excessive pressure needed for the normal friction damper. To achieve the goal of obtaining proper damping force under a smaller pressure, parallel multilayer friction plates were adopted. What's more, a pressure device with eccentric wheels was designed to get a variable friction function and to keep the pre-pressure on the friction surface of the damper at 0 during the standby stage of the service period so as to improve the reliability of the damper and solve the problem of excessive pressure. The performance of the damper was studied through reciprocating load tests. The relation between the damping force and the displacement of the eccentric wheel layered friction damper was obtained, and the mechanical properties of the eccentric wheel layered friction damper were analyzed with finite element method. The results show that the layered design of friction damper can effectively enlarge the friction damping force. The theoretical and finite element simulation results are in good agreement with the experimental results, which shows the results can be used as references for the design of dampers. © 2021, Editorial Office of Journal of Vibration and Shock. All right reserved.
Keyword ：
Load testing Load testing Damping Damping Friction Friction Wheels Wheels Finite element method Finite element method
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| GB/T 7714 | Bai, Guoting , Peng, Lingyun , Kang, Yingjie . Hysteretic performance of an eccentric wheel layered friction damper [J]. | Journal of Vibration and Shock , 2021 , 40 (6) : 64-70 . |
| MLA | Bai, Guoting et al. "Hysteretic performance of an eccentric wheel layered friction damper" . | Journal of Vibration and Shock 40 . 6 (2021) : 64-70 . |
| APA | Bai, Guoting , Peng, Lingyun , Kang, Yingjie . Hysteretic performance of an eccentric wheel layered friction damper . | Journal of Vibration and Shock , 2021 , 40 (6) , 64-70 . |
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Abstract ：
The conventional technology of energy dissipation and shock absorption requires the layout of shock absorption devices installed on multiple floors to effectively reduce the seismic response of a structure, which occupies more structural space. Thus, a negative stiffness device was proposed to be arranged on the lower floor of the structure which formed a mechanically isolated layer to reduce the quantity of dampers and achieved the similar isolation effect by virtue of proper friction damping components. A kind of negative stiffness friction damping device was designed and developed. It has the advantages of large stroke and stable mechanical properties. The performance test verifies that the negative stiffness friction damping device can realize the hysteretic model with negative stiffness. The simulation analysis of the damping scheme shows that if only the device is placed on the bottom floor, the negative stiffness damping device can obtain an ideal damping effect. © 2021, Editorial Office of Journal of Vibration and Shock. All right reserved.
Keyword ：
Shock absorbers Shock absorbers Damping Damping Friction Friction Energy dissipation Energy dissipation Stiffness Stiffness Floors Floors
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| GB/T 7714 | Sun, Tianwei , Peng, Lingyun , Li, Xiaojun et al. Development and application of a negative stiffness friction damping device [J]. | Journal of Vibration and Shock , 2021 , 40 (6) : 243-249 . |
| MLA | Sun, Tianwei et al. "Development and application of a negative stiffness friction damping device" . | Journal of Vibration and Shock 40 . 6 (2021) : 243-249 . |
| APA | Sun, Tianwei , Peng, Lingyun , Li, Xiaojun , Kang, Yingjie . Development and application of a negative stiffness friction damping device . | Journal of Vibration and Shock , 2021 , 40 (6) , 243-249 . |
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Abstract ：
A new type of negative stiffness friction damping device (NSFDD) was developed in this study, which can solve the problem of poor energy dissipation of the existing passive negative stiffness damping device. The friction force is generated by squeezing the friction plate with the preloaded nitrogen spring vertically. When the NSFDD is working, the friction plate causes the nitrogen spring to rotate and negative stiffness force and friction force are generated. The results of the performance test show that the NSFDD can achieve negative stiffness in the hysteretic model. Comparing with the existing negative stiffness device, the NSFDD has larger stroke, more stable negative stiffness and better energy dissipation capacity. The finite element software has been used to simulate the low cycle reciprocation of a structure, and the results show that the NSFDD reduces the stiffness of the structure while increasing the damping of the structure. The results of the simulation and analysis of the shock absorption plan of the NSFDD show that the NSFDD reduces the stiffness of the floor, thereby effectively control on the shear force, displacement and acceleration response of the structure.
Keyword ：
Friction damping Friction damping Negative stiffness Negative stiffness Shock absorption Shock absorption Finite element Finite element Hysteretic model Hysteretic model
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| GB/T 7714 | Sun, Tianwei , Peng, Lingyun , Li, Xiaojun et al. Development and Analysis of Negative Stiffness Friction Damping Device [J]. | KSCE JOURNAL OF CIVIL ENGINEERING , 2021 , 25 (7) : 2587-2602 . |
| MLA | Sun, Tianwei et al. "Development and Analysis of Negative Stiffness Friction Damping Device" . | KSCE JOURNAL OF CIVIL ENGINEERING 25 . 7 (2021) : 2587-2602 . |
| APA | Sun, Tianwei , Peng, Lingyun , Li, Xiaojun , Kang, Yingjie , Deng, Yuke . Development and Analysis of Negative Stiffness Friction Damping Device . | KSCE JOURNAL OF CIVIL ENGINEERING , 2021 , 25 (7) , 2587-2602 . |
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Abstract ：
消能减震技术通常需要在多个楼层布置减震装置才能有效降低结构的地震响应,占用了较多的结构空间。针对此种问题提出在底部楼层布置负刚度阻尼装置的减震方案,形成力学上的隔震层,用减震实现类似隔震的效果,以减少阻尼器的布置数量。为实现该减震方案,研发了一种基于氮气弹簧的负刚度摩擦阻尼装置,该装置具有行程大,力学性能稳定等优点。性能试验验证了负刚度摩擦阻尼装置可以实现具有负刚度特征的滞回模型,对负刚度摩擦阻尼装置布置于底部楼层的减震方案进行了模拟分析,结果表明仅在底层布置负刚度阻尼装置可以获得理想的减震效果。
Keyword ：
摩擦阻尼 摩擦阻尼 滞回模型 滞回模型 减震 减震 负刚度 负刚度
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| GB/T 7714 | 孙天威 , 彭凌云 , 李小军 et al. 负刚度摩擦阻尼装置的开发及应用研究 [J]. | 振动与冲击 , 2021 , 40 (06) : 243-249 . |
| MLA | 孙天威 et al. "负刚度摩擦阻尼装置的开发及应用研究" . | 振动与冲击 40 . 06 (2021) : 243-249 . |
| APA | 孙天威 , 彭凌云 , 李小军 , 康迎杰 . 负刚度摩擦阻尼装置的开发及应用研究 . | 振动与冲击 , 2021 , 40 (06) , 243-249 . |
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Abstract ：
为解决常规摩擦阻尼器过大压力导致的一系列问题,设计一种新型偏心轮叠层摩擦阻尼器。该阻尼器以并联多层叠加的摩擦面的方法,实现在较小摩擦界面正压力条件下获得目标摩擦阻尼力的目的;设置偏心轮加压装置,使得阻尼器实现变摩擦功能,且阻尼器摩擦面在服役期间的待命阶段的预压力为0,以提高阻尼器的可靠性,进一步解决过大压力的问题。通过往复加载试验对该阻尼器的性能进行了研究,获得了偏心轮叠层摩擦阻尼器阻尼力与位移的关系,并对偏心轮叠层摩擦阻尼器力学性能进行了有限元分析。结果表明:阻尼器摩擦板的叠层设计能够有效放大了摩擦阻尼力;偏心轮叠层摩擦阻尼器可以提供变摩擦滞回曲线,理论公式、有限元模拟结果与试验结果吻合较好...
Keyword ：
变摩擦 变摩擦 有限元模拟 有限元模拟 摩擦阻尼器 摩擦阻尼器 往复加载试验 往复加载试验
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| GB/T 7714 | 白国廷 , 彭凌云 , 康迎杰 . 偏心轮叠层摩擦阻尼器的滞回性能研究 [J]. | 振动与冲击 , 2021 , 40 (06) : 64-70 . |
| MLA | 白国廷 et al. "偏心轮叠层摩擦阻尼器的滞回性能研究" . | 振动与冲击 40 . 06 (2021) : 64-70 . |
| APA | 白国廷 , 彭凌云 , 康迎杰 . 偏心轮叠层摩擦阻尼器的滞回性能研究 . | 振动与冲击 , 2021 , 40 (06) , 64-70 . |
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