Article
Engineering, Civil
Cun Hui, Zhongyi Zhou, Yonggang Li, Yongkang Jiao, Ran Hai
Summary: A low-cost double-sided slotted steel tube shear damper is proposed to absorb seismic energy through the elastic-plastic deformation in the plane of the slotted steel plate on the side of the steel tube. The damper exhibits strong plastic deformation capacity, good seismic performance, and energy dissipation capacity. Quasi-static tests and finite element simulations validate the performance and effectiveness of the damper.
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
(2022)
Article
Construction & Building Technology
Yongwei Wang, Zhen Zhou, Linjie Huang
Summary: The study demonstrates that the novel RVFD can exhibit stable performance even without a self-centering system. The disc springs in the RVFD play a significant role by providing clamping forces for energy dissipation and restoring forces for self-centering behavior.
INTERNATIONAL JOURNAL OF STEEL STRUCTURES
(2021)
Article
Construction & Building Technology
Mohsen Khalili, Abbas Sivandi-Pour, Ehsan Noroozinejad Farsangi
Summary: This study introduces a novel hysteretic damper for beam-column steel connections to dissipate seismic energy, improving the ductility and seismic resilience of the entire building structure. The damper has high energy dissipation capacity without a significant decline in resistance, and is easy to fabricate, install, and replace.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Engineering, Marine
Jiakang Li, Zhe Zhang, Lu Wang, Zhe Ma, Wenyuan Wang
Summary: This paper proposes a new type of shear plate metal damper and compares its performance through seismic model tests. The results indicate that this damper exhibits better energy dissipation performance.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Engineering, Civil
Hae-Yong Park, Jinwoo Kim, Susumu Kuwahara
Summary: The article introduces the role of shear-type hysteretic dampers in reducing damage to main members and specifically investigates the mechanical properties of low-yield-point steel circular hollow-section dampers and the influence of stud support. Through cyclic loading tests and nonlinear finite element analysis, the effectiveness of different dampers is compared.
ENGINEERING STRUCTURES
(2022)
Article
Engineering, Civil
Jinzhi Wu, Jianhua Zheng, Guojun Sun
Summary: This study investigates the hysteretic performance of H-section 6061-T6 aluminium alloy members under cyclic and eccentric loading, finding that plastic local buckling controls the failure mechanism and leads to stiffness degradation and fracture failure. The finite element simulation method effectively verifies the model and the constitutive relationship of aluminium alloy. Additionally, an analysis of parameters shows that increased slenderness ratio and eccentricity weaken the energy consumption capacity and bearing capacity, providing valuable insight for seismic design of aluminium alloy structures.
THIN-WALLED STRUCTURES
(2021)
Article
Materials Science, Multidisciplinary
Diogo Galhofo, Nuno Silvestre
Summary: The study focuses on the mechanical properties of gamma-graphyne under different loading conditions, validating the accuracy of the model through simulation and testing, and analyzing the failure modes and load-carrying capacity.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2021)
Article
Engineering, Civil
RiHa Kim, TaeSoo Kim, SeHyeok Im, Yunping Xi
Summary: This study found that grade 304 stainless steel tubular specimens had a lower number of cycles at the ultimate state compared to grade 316 stainless steel specimens due to tensile fracture in the weld heat-affected zone. Additionally, the ultimate strength and energy dissipation capacity of lean duplex stainless steel specimens were lower than those of austenitic stainless steel specimens due to initial local buckling. Grade 316 specimens showed higher energy dissipation capacity and energy index compared to grade 304 members, despite having higher material strength.
ENGINEERING STRUCTURES
(2021)
Article
Construction & Building Technology
Chao Dou, Cheng Xie, Yan Wang, Na Yang
Summary: This paper proposed an innovative flat-corrugated steel plate shear wall (FCPSW) to solve the problem of severe post-buckling resistance degradation of the infill corrugated panel in CPSWs. Experimental tests and finite element analysis (FEA) were conducted to investigate the hysteretic behavior and the effect of key parameters on the lateral resistant behavior of the FCPSW. The study showed that the FCPSW utilized the interaction between the corrugated plate and the flat plates to reduce out-of-plane buckling deformation and improve the lateral performance.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Engineering, Civil
Lan Xie, Guojing He, Alice Xiaodong Wang, Roberto Crocetti, Lian Shen, Xiao Tang
Summary: This study investigated the hysteretic behavior of bolt connections in a timber-concrete composite bridge through experimental and numerical simulations. The results showed that the dual-hinge mechanism of the bolts was the predominant failure mode, and the timber-concrete composite specimens exhibited satisfactory energy dissipation and ductility.
JOURNAL OF BRIDGE ENGINEERING
(2023)
Article
Engineering, Environmental
Song Dai, Bo Han, Ningbo Li, Baogang Wang, Ben He, Jian Liu
Summary: This paper investigates and quantifies the morphological development of hysteretic behavior based on dynamic triaxial testing results, introducing four morphological parameters and discussing the failure states under different cyclic stress paths. The proposed cyclic failure criteria provide a fundamental reference for investigating engineering geology properties of submarine clay under long-term cyclic loading.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2022)
Article
Construction & Building Technology
BoKyung Hwang, TaeSoo Kim, YoungJu Kim, JinWon Kim
Summary: Steel slit dampers made of austenitic stainless steel STS304 and carbon steel SS275 were tested under monotonic and cyclic loading. The STS304 damper showed superior tensile strength and elongation compared to SS275, but exhibited brittle behavior under cyclic loading due to transformation induced plasticity. However, within the specified loading protocol and story drift, the STS304 damper demonstrated excellent seismic performance.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Construction & Building Technology
Wang-Chuen Lin, Chung-Han Yu, Min-An Tsai, Yu-Wen Chang, Shen-Kai Peng, Shiang-Jung Wang
Summary: In this study, the seismic response of a full-scale viscoelastic (VE) damper was tested by numerically analyzing a viscoelastically damped structure. The results showed that the VE damper remained intact and exhibited the design performance before being subjected to a shear strain of approximately 700%. The accuracy of the fractional derivative model at the design performance stage was verified by comparing the experimental seismic responses with predictions.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Engineering, Civil
Luis Alberto Bedrinana, Masanori Tani, Minehiro Nishiyama
Summary: This paper proposes and validates a type of external replaceable hysteretic dampers for unbonded post-tensioned precast walls, which provide large energy dissipation without significant buckling. The dampers were tested under cyclic loads to evaluate their deformation capacity and fracture mechanism, showing their suitability for self-centering rocking walls. Additionally, a numerical investigation complemented the experimental data and provided analytical tools for design.
ENGINEERING STRUCTURES
(2021)
Article
Construction & Building Technology
Juncai Liu, Li Tian, Ruisheng Ma, Bing Qu
Summary: Steel members present complex nonlinear behaviors due to the asymmetry of seismic responses, and a new hysteresis model has been proposed to accurately predict their hysteresis curves and energy dissipation. The model is able to realistically reflect the mechanical behaviors under different influencing factors by properly selecting parameters through optimization analysis.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Computer Science, Interdisciplinary Applications
Jie Zheng, Chunwei Zhang, Afrasyab Khan, Tamer A. Sebaey, Naeim Farouk
Summary: The study developed a semi-analytical procedure using the TE-GDQ technique to investigate the asymmetric stability of functionally graded graphene platelet reinforced nanocomposite annular plates under thermal loading. The research determined the equivalent Young's modulus of the plate, extracted governing equations using FSDT and von-Karman relations, and applied the TE-GDQ procedure to derive stability relations. Validation and parametric studies were conducted to analyze the influence of various factors on the structure stability.
ENGINEERING WITH COMPUTERS
(2022)
Article
Acoustics
Arameh Eyvazian, Chunwei Zhang, Farayi Musharavati, Afrasyab Khan, Mohammad Alkhedher
Summary: The treatment of the first natural frequency of a rotating nanocomposite beam reinforced with graphene platelet is discussed in this paper. The impact of adding graphene platelet to the beam is studied, and it is found that the addition can enhance the natural frequency of the beam but may decrease it in a thermal environment.
JOURNAL OF VIBRATION AND CONTROL
(2023)
Article
Engineering, Mechanical
Amin Taghieh, Ardashir Mohammadzadeh, Chunwei Zhang, Sakthivel Rathinasamy, Stelios Bekiros
Summary: A novel observer-based control policy using an interval type-3 fuzzy logic system is developed to overcome the limitations of fuzzy-based controllers in approximating uncertainties and analyzing complex nonlinear systems without detailed dynamics model information. The proposed approach includes online optimized tuning rules, a simple type reduction method, and adaptive mechanisms. It also utilizes an adaptive compensator to improve the robust performance of the closed-loop system and mitigate the effects of approximation errors. Stability analysis is conducted using appropriate Lyapunov functions and Barbalat's lemma. Simulations and experimental implementations demonstrate that the suggested approach achieves more accurate approximation of unknown models and complex nonlinearities, and exhibits good resistance against uncertainties and parameter variations.
NONLINEAR DYNAMICS
(2023)
Article
Mechanics
Arameh Eyvazian, Chunwei Zhang, Mohammad Alkhedher, Sami Muhsen, Mohamed Abdelghany Elkotb
Summary: This comprehensive study investigates the thermal buckling instability and post-critical deflection of a rotating nanocomposite microbeam reinforced with graphene platelet. The study shows that reinforcing the microbeam with graphene platelet using an X-pattern enhances its static strength against buckling instability.
COMPOSITE STRUCTURES
(2023)
Review
Green & Sustainable Science & Technology
Chunwei Zhang, Hossein Khorshidi, Elham Najafi, Marziyeh Ghasemi
Summary: Nanomaterials, with their exceptional properties, have attracted attention for their use in nano-modified alkali-activated composites (AACs) or geopolymers. The most commonly used nanomaterial was nano-SiO2, and the majority of studies focused on paste, mortar, and concrete composites. Increasing the nanomaterials content in an alkaline medium reduced AACs consistency and setting time. The incorporation of nanomaterials improved mechanical characteristics, but excessive amounts led to deterioration. Analytical tests indicated that nanomaterials contributed to a denser, homogenous structure with more stable chemical bonds and higher amorphicity. Proper selection and incorporation of nanomaterials in AACs can greatly enhance their mechanical and microstructural properties, promoting sustainable construction materials.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Mechanics
Li Sun, Tianqi Liang, Chunwei Zhang, Jianyun Chen
Summary: This study investigates the compounded shear-thickening fluids (STFs) consisting of needlelike carbon fiber powder (CFP), silicon dioxide (SiO2), and polyethylene glycol (PEG). The compounded STFs exhibit significant rheological behavior and shear-thickening effects, and show excellent energy dissipation capacity and dynamic stability. The key performance index of the compounded STFs is demonstrated to be improved by ten times or even higher, making it a novel type of STFs for engineering practice.
Review
Computer Science, Interdisciplinary Applications
Chunwei Zhang, Masoud Abedini
Summary: This study provides a review of previous research on the influence of strain rate on the dynamic and quasi-static behavior of concrete and steel materials. The research shows that strain rate has a significant effect on the material behavior, particularly in blast analysis. Experimental and numerical investigations demonstrate the impacts of strain rate on various mechanical properties of concrete and steel materials under high loading conditions. The findings suggest that strain rate should be considered in structural performance assessment, especially in severe loading circumstances.
ARCHIVES OF COMPUTATIONAL METHODS IN ENGINEERING
(2023)
Article
Engineering, Civil
Marziyeh Ghasemi, Chunwei Zhang, Hossein Khorshidi, Limeng Zhu, Po -Chien Hsiao
Summary: This study investigates the behavior of a cost-effective and easy-to-install displacement-restraint cable bracing technique (cable-cylinder) for seismic upgrading of RC frames. The results reveal that cable cylinder braces have increased the first-story column shear more than regular cable braces, while lowering the maximum compression force of the adjacent column. This technique has significant implications for improving the performance of RC frames.
ENGINEERING STRUCTURES
(2023)
Article
Engineering, Civil
Chunwei Zhang, Cunkun Duan, Li Sun
Summary: This study explores the feasibility of using the friction pendulum system based inter-storey isolation strategy as an alternative to the friction pendulum system base isolation for vibration control of high-rise structures during earthquakes. Experimental and computational analysis are conducted, showing that FPS-I can effectively suppress the acceleration of the superstructure and impact the response of the lower substructure. The FPS-I strategy achieves a vibration reduction effect between 50% and 60%, which is significantly better than the FPS-B scheme. The research also demonstrates that FPS-I has a greater effectiveness in reducing the vibrations of the entire structure during strong earthquakes compared to FPS-B.
INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS
(2023)
Article
Chemistry, Physical
Hongmei Xiao, Peng Yu, Limeng Zhu, Chunwei Zhang, Po-Chien Hsiao
Summary: A protective concrete-filled steel plate composite wall (PSC) is developed, which consists of a core concrete-filled bilateral steel plate composite shear wall and two lateral replaceable surface steel plates with energy-absorbing layers. The PSC wall exhibits high in-plane seismic performance and out-of-plane impact performance, making it suitable for high-rise constructions, civil defence initiatives, and buildings with stringent structural safety criteria. Finite element models are used to investigate the out-of-plane low-velocity impact behavior of the PSC wall, and the results show that the replaceable energy-absorbing layer significantly reduces displacement and plastic deformation by absorbing a large amount of impact energy. The PSC wall also maintains high in-plane seismic performance under impact load.
Article
Multidisciplinary Sciences
Songhua Xu, Chunwei Zhang, Ardashir Mohammadzadeh
Summary: This paper investigates the control of robotic manipulators (RMs) which are widely used in industry. The highly nonlinear dynamics and the interaction of inputs-outputs cannot be ignored to improve accuracy in practice. Non-structural uncertainties such as friction, disturbance, and unmodeled dynamics pose additional challenges. Recently, a control idea based on type-3 fuzzy logic systems (FLSs) has been suggested, which shows better accuracy in noisy environments. The proposed approach utilizes T3-FLSs to estimate the dynamics of RMs and compensates for symmetrical perturbations, enhancing stability through online learning.
Article
Engineering, Geological
Jingcai Zhang, Chunwei Zhang
Summary: This paper investigates the effectiveness of viscoelastic (VE) material with different mechanical properties in reducing pounding between neighboring buildings, considering soil-structure interactions (SSI). The study considers unequal-story-height adjacent buildings/frames and three types of soil. Numerical investigations are conducted to evaluate the mitigating performance of the VE material in terms of pounding force, acceleration amplification, and inter-story drift. The results confirm that the seismic response of buildings, particularly the acceleration of collision floors, can be significantly amplified by collisions, but can be reduced by VE material for all types of soil.
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
(2023)
Article
Engineering, Geological
Chunwei Zhang, Cunkun Duan, Li Sun, Limeng Zhu, Po-Chien Hsiao
Summary: This article compares three operating systems, namely friction pendulum system (FPS) base isolation form: FPS-B, FPS inter-story isolation form: FPS-I, and FPS hybrid isolation form: FPS-H, to solve the difficulties associated with deploying isolation technique in high-rise structures. The structural seismic responses of the three control systems were analyzed using a 9-layer scaled test model constructed with the third generation benchmark model. The results show that the FPS-H technology greatly reduces the acceleration impact of both the superstructure and substructure in mild and major earthquakes, primarily by changing the dynamic characteristics of the whole structure.
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
(2023)
Article
Engineering, Civil
Chunwei Zhang, Cunkun Duan, Li Sun
Summary: This paper presents a comprehensive experimental investigation of high-rise structure employing the friction pendulum system (FPS) in accordance with inter-storey isolation control strategy. The test results demonstrate that when the FPS is installed on the 6th to 8th floors of the structure, the top floor's acceleration attenuation rate is approaching 67%, leaving the controlled structure's response is only one third of the uncontrolled structure.
Review
Acoustics
Chunwei Zhang, Hadi Kordestani, Mahdi Shadabfar
Summary: This paper provides a state-of-the-art review of available solutions for reducing undesired vibrations in trains. The solutions are divided into two main categories: direct solutions applied to trains' bodies or bogies, and indirect solutions that control vibrations in railway bridge structures. The review also examines modal identification of trains and railway infrastructures, and proposes the use of tuned rotatory inertia dampers and active rotatory inertia drivers to address the limitations of the sky-hook model. Additionally, three practical solutions are identified for mitigating vibration and noise in trains.
JOURNAL OF LOW FREQUENCY NOISE VIBRATION AND ACTIVE CONTROL
(2023)