Article
Acoustics
Hui He, Ping Tan, Linfei Hao, Kai Xu, Yue Xiang
Summary: This paper introduces the concept of effective damping ratio enhancement (EDRE) effect to describe the better seismic control performance of a tuned viscous mass damper (TVMD) compared to a bare energy dissipation element (EDE) with the same damping coefficient. The relationship between the response mitigation ratio, effective damping ratio, and the EDRE factor is revealed through theoretical analysis and parametric study. The paper also proposes a closed-form solution for the optimal design parameters of TVMD. Numerical examples are conducted to verify the effectiveness of the proposed TVMD design methodology.
JOURNAL OF SOUND AND VIBRATION
(2022)
Article
Engineering, Mechanical
S. Manzoni, A. Argentino, F. Luca, M. Berardengo, M. Vanali
Summary: Different layouts of adaptive tuned mass dampers using shape memory alloys have been proposed. This paper compares wire-based and beam-based layouts in terms of adaptation capability, force exerted, and power consumption. Models are developed for both layouts, minimizing the required inputs related to device geometry, shape memory alloy characteristics, and vibration input. The models are experimentally validated and used for comparing the two layouts.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2023)
Article
Engineering, Geological
Zhaoyu Huo, Hu Ding, Zhan Shu
Summary: This paper studied the dynamic characteristics of the tuned inerter eddy current damper (TIECD) and investigated its optimal design considering the nonlinear behavior of the eddy current damping (ECD). The relationship between the nonlinear parameters of the ECD and its equivalent damping coefficient was revealed using the energy equivalent linearization method. Optimal design formulae for a TIECD were derived. The comparisons showed that the proposed solutions offered an ideal estimation for the TIECD optimal design parameters of a lightly damped structure. In contrast with the linear tuned viscous mass damper (TVMD), the nonlinear TIECD achieved better control performances.
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Dehui Ye, Jie Tan, Yabin Liang, Qian Feng
Summary: The study investigated the performance of PTMD in vibration control at different temperatures and demonstrated its temperature robustness through experiments. The numerical results validated the accuracy of the pounding force model and the performance of PTMD.
FRONTIERS IN MATERIALS
(2021)
Article
Construction & Building Technology
Yaoyao Duan, Linsheng Huo
Summary: The traditional PTMD has limitations in quickly suppressing free vibration and causing local damage and fatigue. To address these issues, this paper proposes a novel CLD-PTMD with additional damping layers. Experimental results show that the CLD-PTMD dissipates more energy, has lower pounding force and energy, and can suppress free vibration faster than the traditional PTMD.
ADVANCES IN STRUCTURAL ENGINEERING
(2023)
Article
Engineering, Civil
Wenxi Wang, Zhilin Yang, Xugang Hua, Zhengqing Chen, Xiuyong Wang, Gangbing Song
Summary: The study evaluates the performance of PPTMD in controlling vibrations of structures under ground motions. Optimum parametric formulas are proposed for optimal PPTMD design, showing that PPTMD effectively suppresses structural responses even under detuning situations. The effectiveness of PPTMD as a single-mode controller is demonstrated when the target mode is mainly excited under seismic excitations.
ENGINEERING STRUCTURES
(2021)
Article
Engineering, Civil
Omid Karimzade Soureshjani, Seyed Hossein Hosseini Lavassani
Summary: Seismic structural design codes and seismic control systems have traditionally been based on single events, such as a mainshock. However, in reality, seismic zones experience multiple aftershocks along with the mainshock. This study investigates the seismic behavior of a 3D seismic controlled steel structure and the efficiency of seismic control systems under real mainshock-aftershock sequences. The results show that the tuned particle impact damper (TPID) system, which combines a passive tuned mass damper (TMD) and a particle impact damper (PID), is more efficient than the TMD system. Additionally, the high performance of TPID and TMD control systems eliminates the need to consider seismic sequences in their design.
Article
Mathematics, Applied
Jing Bian, Xingjian Jing
Summary: By utilizing the X-shaped structure/mechanism, the X-absorber provides beneficial nonlinear damping and tunable quasi-zero stiffness, which significantly improves system parametric robustness, widens vibration suppression bandwidth, effectively suppresses resonant peaks at very low frequencies, and eliminates potential instabilities that exist in traditional absorbers such as Duffing systems.
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
(2021)
Article
Engineering, Mechanical
S. Manzoni, M. Berardengo, F. Boccuto, M. Vanali
Summary: This paper presents the design and development of a multi-frequency adaptive tuned mass damper using a cantilever beam with shunted piezoelectric elements. It shows that the device can independently shift a number of eigenfrequencies equal to the number of piezoelectric elements, and the use of negative capacitances greatly improves its adaptation capability. Mathematical formulations are provided to link the capacitance values for shunting the piezoelectric elements and the resulting shifts in eigenfrequencies. The stability of the electro-mechanical system is also investigated, providing tuning rules for the negative capacitances. Experimental validation is conducted using a cantilever beam with two piezoelectric patches.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2023)
Article
Green & Sustainable Science & Technology
Zili Zhang
Summary: This paper investigates the use of electromagnetic shunt tuned mass damper (EMSTMD) to suppress in-plane vibrations of a floating offshore wind turbine (FOWT). The EMSTMD improves the performance and durability of the damper by replacing the dashpot with a shunted electromagnetic (EM) transducer. The study establishes a 17-degree-of-freedom (17-DOF) model for FOWT and compares the performance of the optimized EMSTMD with the classic TMD in both frequency and time domains. The results show that the EMSTMD consistently outperforms the TMD in reducing tower side-side vibrations of FOWT.
Article
Engineering, Mechanical
Yafeng Li, Ping Tan, Shouying Li
Summary: This study proposes a novel eddy-current-based tuned inerter damper that integrates tuned inerter damper and nonlinear eddy current damping. The mechanical model and configuration of the damper are introduced, and a closed-form solution for its optimal design is established. Numerical simulations and comparisons demonstrate the superior effectiveness of the damper in mitigating seismic response compared to other types of dampers.
NONLINEAR DYNAMICS
(2023)
Article
Chemistry, Multidisciplinary
Yichao Xu, Changzhao Li, Yu Cheng, Yufeng Zhang
Summary: In this study, a model of a taut cable equipped with two types of high-damping rubber (HDR) dampers-the HDR damper and the tuned mass-high-damping rubber damper (TM-HDR-D)-is established, and the effect of each damper acting alone and in combination on the cable's additional modal damping is studied. The results show that, in practical engineering, the smaller installation mass of the TM-HDR-D can make up for the lack of damping enhancement of the cable-end HDR damper.
APPLIED SCIENCES-BASEL
(2023)
Article
Construction & Building Technology
Daniel Caicedo, Luis Lara-Valencia, John Blandon, Carlos Graciano
Summary: This study presents a methodology for tuning TMDs and TMDIs in high-rise buildings using the DEM method, which is verified on actual building structures. The results show that classic TMDs optimally designed by DEM demonstrate a better seismic response compared to TMDIs.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Construction & Building Technology
Yuhao Cheng, Xiaodong Ji
Summary: The TVMD, a novel type of vibration absorber, demonstrated robust vibration control performance in experiments, with the control performance being more influenced by variations in primary structure stiffness than by changes in TVMD damping. Increasing the inertance-to-mass ratio enhanced the robustness of TVMD control compared to conventional tuned mass dampers.
ADVANCES IN STRUCTURAL ENGINEERING
(2022)
Article
Construction & Building Technology
Hui He, Ping Tan, Linfei Hao
Summary: This paper proposes a practical method for calculating the acceleration-based effective damping ratio of TMD. The effectiveness of TMD in controlling acceleration responses depends on the TMD mass ratio and the structural damping ratio. Moreover, the TMD effective damping ratio significantly depends on site conditions.
STRUCTURAL DESIGN OF TALL AND SPECIAL BUILDINGS
(2022)
Article
Construction & Building Technology
N. Toropovs, F. Lo Monte, M. Wyrzykowski, B. Weber, G. Sahmenko, P. Vontobel, R. Felicetti, P. Lura
CEMENT AND CONCRETE RESEARCH
(2015)
Article
Construction & Building Technology
W. J. Lee, B. Weber, C. Leinenbach
CONSTRUCTION AND BUILDING MATERIALS
(2015)
Article
Engineering, Civil
Patrick Paultre, Benedikt Weber, Sebastien Mousseau, Jean Proulx
ENGINEERING STRUCTURES
(2016)
Article
Nanoscience & Nanotechnology
C. Leinenbach, W. J. Lee, A. Lis, A. Arabi-Hashemi, C. Cayron, B. Weber
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2016)
Article
Construction & Building Technology
Dorjan Dauti, Alessandro Tengattini, Stefano Dal Pont, Nikolajs Toropovs, Matthieu Briffaut, Benedikt Weber
CEMENT AND CONCRETE RESEARCH
(2018)
Article
Engineering, Geological
D. Dauti, S. Dal Pont, B. Weber, M. Briffaut, N. Toropovs, M. Wyrzykowski, G. Sciume
INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS
(2018)
Review
Construction & Building Technology
A. Cladera, B. Weber, C. Leinenbach, C. Czaderski, M. Shahverdi, M. Motavalli
CONSTRUCTION AND BUILDING MATERIALS
(2014)
Article
Thermodynamics
Benedikt Weber
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2012)
Article
Construction & Building Technology
Benedikt Weber, Patrick Paultre
JOURNAL OF STRUCTURAL ENGINEERING
(2010)
Article
Nanoscience & Nanotechnology
W. J. Lee, B. Weber, G. Feltrin, C. Czaderski, M. Motavalli, C. Leinenbach
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2013)
Article
Instruments & Instrumentation
W. J. Lee, B. Weber, G. Feltrin, C. Czaderski, M. Motavalli, C. Leinenbach
SMART MATERIALS AND STRUCTURES
(2013)
Article
Chemistry, Multidisciplinary
Jannis Wernery, Samuel Brunner, Benedikt Weber, Christopher Knuth, Matthias M. Koebel
Summary: The research found that using superinsulation materials in passenger trains can reduce heating/cooling demand, improve energy efficiency and thermal comfort. Vacuum insulation panels and aerogel boards performed well in terms of thermal, fire and mechanical properties, showing potential for application in train envelopes.
APPLIED SCIENCES-BASEL
(2021)
Proceedings Paper
Engineering, Civil
Benedikt Weber
EXPERIMENTAL VIBRATION ANALYSIS FOR CIVIL STRUCTURES: TESTING, SENSING, MONITORING, AND CONTROL
(2018)
Proceedings Paper
Engineering, Civil
Benedikt Weber
EVACES'15, 6TH INTERNATIONAL CONFERENCE ON EXPERIMENTAL VIBRATION ANALYSIS FOR CIVIL ENGINEERING STRUCTURES
(2015)
Article
Engineering, Civil
Renbing An, Jiacong Yuan, Yi Pan, Duhang Yi
Summary: Traditional timber structures built on sloped land are more susceptible to seismic damage compared to structures built on flat land. The upper portion of the structure is found to be the weak point on sloped land, with potential issues such as tenon failure and column foot sliding.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Elyas Bayat, Federica Tubino
Summary: The current design guidelines for assessing floor vibration performance do not consider the influence of variability in the walking path on the dynamic response of floors. This study investigates the dynamic response of floors under a single pedestrian walking load, taking into account the randomness of the walking path and load. The effectiveness of the current guidelines in predicting floor response is critically assessed.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Gao Ma, Chunxu Hou, Hyeon-Jong Hwang, Linghui Chen, Zhenhao Zhang
Summary: Minimizing earthquake damage and improving repair efficiency are the main principles of resilient structures. This study proposed a repairable column with UHPC segments and replaceable energy dissipaters. The test results showed that the columns with UHPC segments and replaceable dissipaters exhibited high strength, deformation capacity, and energy dissipation.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Kartheek S. M. Sonti, Pavan Kumar Penumakala, Suresh Kumar Reddy Narala, S. Vincent
Summary: In this study, the compressive behavior of alumina hollow particles reinforced aluminum matrix syntactic foams (AMSF) was investigated using analytical, numerical, and experimental methods. The results showed that the FE solver ABAQUS could accurately predict the elastic and elastio-plastic behavior of AMSFs. The study also suggested that FE models have great potential in developing new materials and composites under compression loading.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Zheqi Peng, Xin Wang, Zhishen Wu
Summary: In this study, the statistical modeling of fiber-reinforced polymer (FRP) cables using the classic fiber bundle model is explored. The study considers important features of large-scale multi-tendon FRP cables, such as initial random slack and uneven tensile deformation among tendons. A parametric study and reliability analysis are conducted to predict the load-displacement relation and design thousand-meter-scale FRP cables. The study emphasizes the relation between the reliability index beta of the cable and the safety factor gamma of the FRP material.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Yanchao Shi, Shaozeng Liu, Ye Hu, Zhong-Xian Li, Yang Ding
Summary: This paper introduces a damage assessment method for reinforced concrete (RC) columns under blast loading, using modal parameter measurement as the evaluation index. The validity of the proposed method is validated through numerical and experimental analysis. The results show that this modal-based damage assessment method is applicable for non-destructive evaluation of blast-induced damage of RC columns.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Xiaolin Zou, Maosheng Gong, Zhanxuan Zuo, Qifang Liu
Summary: This paper proposes an efficient framework for assessing the collapse capacity of structures in earthquake engineering. The framework is based on an accurate equivalent single-degree-of-freedom (ESDOF) system, calibrated by a meta-heuristic optimization method. The proposed framework has been validated through case studies, confirming its accuracy and efficiency.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Jie Hu, Weiping Wen, Chenyu Zhang, Changhai Zhai, Shunshun Pei, Zhenghui Wang
Summary: A deep learning-based rapid peak seismic response prediction model is proposed for the most common two-story and three-span subway stations. The model predicts the peak seismic responses of subway stations using a data-driven approach and limited information, achieving good predictive performance and generalization ability, and demonstrating significantly higher computational efficiency compared to numerical simulation methods.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Jin Ho Lee, Jeong-Rae Cho
Summary: A simplified model is proposed to estimate the earthquake responses of a rectangular liquid storage tank considering the fluid-structure interactions. The complex three-dimensional structural behavior of the tank is represented by a combination of fundamental modes of a rectangular-ring-shaped frame structure and a cantilever beam. The system's governing equation is derived, and earthquake responses such as deflection, hydrodynamic pressure, base shear, and overturning moment are obtained from the solution.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
W. J. Lewis, J. M. Russell, T. Q. Li
Summary: The work discusses the key features and advantages of optimal 2-pin arches shaped by statistically prevalent load and constant axial stress. It extends the design space of symmetric arches to cover asymmetric forms and provides minimum values of constant stress for form-finding of such arches made of different materials. The analysis shows that constant stress arches exhibit minimal stress response and have potential implications for sustainability and durability of future infrastructure.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Wen-ming Zhang, Han-xu Zou, Jia-qi Chang, Tian-cheng Liu
Summary: Saddle position is crucial in the construction and control of suspension bridges. This study proposes an analytical approach to estimate the saddle positions in the completed bridge state and discusses the calculation under different definitions. The relationship between the saddle position and the tower's centerline is analyzed, along with the eccentric compression of the tower. The feasibility of the proposed method is verified through a real-life suspension bridge.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Shaise K. John, Alessio Cascardi, Yashida Nadir
Summary: This study experimentally investigated the use of TRM material for reinforcing concrete columns. The results showed that increasing the number of textile layers effectively increased the axial strength. Additionally, the choice of fiber type and hybrid textile configuration also had a significant impact on strength improvement. A new design model that considers the effects of both the confining matrix and textile was proposed.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Chandrashekhar Lakavath, S. Suriya Prakash
Summary: This study experimentally investigated the shear behavior of post-tensioned UHPFRC girders, considering factors such as prestress level, fiber volume fraction, and types of steel fibers. The results showed that increasing prestress and fiber dosage could enhance the ultimate load-carrying capacity of the girders, reduce crack angle, and increase shear cracking load.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Vahid Goodarzimehr, Siamak Talatahari, Saeed Shojaee, Amir H. Gandomi
Summary: In this paper, an Improved Marine Predators Algorithm (IMPA) is proposed for size and shape optimization of truss structures subject to natural frequency constraints. The results indicate that IMPA performs better in solving these nonlinear structural optimization problems compared to other state-of-the-art algorithms.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Chun-Xu Qu, Jin-Zhao Jiang, Ting-Hua Yi, Hong-Nan Li
Summary: In this paper, a computer vision-based method is proposed to monitor the deformation and displacement of building structures by obtaining 3D coordinates of surface feature points. The method can acquire a large number of 3D coordinates in a noncontact form, improve the flexibility and density of measurement point layout, and is simple and cost-effective to operate.
ENGINEERING STRUCTURES
(2024)