Article
Engineering, Civil
Ruofan Jia, Xiaodong Ji, Yuhao Cheng, Kohju Ikago
Summary: This paper investigates the seismic response control of core wall structures using tuned viscous mass damper (TVMD) outriggers. The TVMD outriggers are vertically installed between the outrigger trusses/beams and perimeter columns. A simplified model based on the distributed-parameter system is developed to analyze the dynamic properties and seismic responses of high-rise buildings. The results show that TVMD outriggers designed with fixed-point theory not only suppress dynamic responses for the target tuning mode, but also provide additional damping to lower-order modes.
ENGINEERING STRUCTURES
(2023)
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
Engineering, Mechanical
Zhipeng Zhao, Xiuyan Hu, Ruifu Zhang, Qingjun Chen
Summary: This study proposes a time-decay rate-based optimal design methodology for an inerter-based damper to suppress impulse-induced vibration. The mechanical model and pole-based analysis are used to quantify the functionality of the damper, and a comparison with previous design methods is conducted to illustrate its advantages. Additionally, a series of response spectra are established for dynamic performance evaluation.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Engineering, Mechanical
Zhentao Long, Wenai Shen, Hongping Zhu
Summary: In the past decade, tuned viscous mass dampers (TVMD) have been proven effective for seismic resistance. However, there has been a lack of theoretical research on the energy dissipation or energy harvesting of TVMD, specifically regarding the consistency of optimal passive vibration control and energy dissipation maximization. This study provides a theoretical analysis of energy dissipation and energy harvesting of TVMD, considering damping power and output power respectively. The study analyzes the influences of TVMD parameters, site conditions, and structural dynamic characteristics on the average damping power, and also presents the theoretical upper bound of the output power of an energy-harvesting TVMD. The findings highlight the significant impact of various factors on energy dissipation and demonstrate the inconsistency between energy dissipation maximization and optimal passive vibration control in TVMD.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(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
Computer Science, Information Systems
Francisco Gonzalez-Longatt, Juan Manuel Roldan-Fernandez, Harold R. Chamorro, Santiago Arnaltes, Jose Luis Rodriguez-Amenedo
Summary: This paper focuses on the impact of the shift to a sustainable energy future on frequency stability, discussing the relationship between Rate of Change of Frequency (RoCoF) and system inertia, as well as the implementation effects of inertial response controllers based on power converter technologies on system frequency response.
Article
Engineering, Geological
Linfei Hao, Hui He, Ping Tan
Summary: In this study, TVMD was used for vibration control of adjacent buildings, and its response mitigation performance was investigated using simplified SDOF systems. Mitigation ratios and overall performance index were established to evaluate TVMD's performance, with parametric study and numerical optimization procedure used to determine optimal parameters. Graphical procedure and design methods were proposed for practical design and control, demonstrating effective energy dissipation and response mitigation.
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
(2021)
Article
Construction & Building Technology
Jingjing Wang, Chao Zhang, Zhibin Liu
Summary: This study introduces a clutching inerter enhanced tuned mass damper, which can reduce responses in both the structure and device and maintain strong robustness against frequency uncertainties.
STRUCTURAL CONTROL & HEALTH MONITORING
(2022)
Article
Engineering, Civil
Hui He, Ping Tan, Linfei Hao, Kai Xu, Yue Xiang
Summary: This study proposes three closed-form solutions for the optimal design parameters of TVMD for acceleration response control under seismic excitations. Numerical analysis and real seismic data validation demonstrate the control performance of these solutions. The results show that TVMD2 is the most economical and efficient control scheme, while TVMD1 is recommended for mass ratios between 0.25 and 0.50, and TVMD3 is a better choice for higher damping ratios.
ENGINEERING STRUCTURES
(2022)
Article
Engineering, Ocean
Ali Pourzangbar, Mostafa Vaezi
Summary: The study applied Particle Swarm Optimization to determine the optimal performance of brace-viscous damper system and pendulum tuned mass damper system in mitigating the dynamic response of a jacket platform. Through numerical simulation and optimization algorithm, the optimal arrangement and parameter configurations were obtained.
APPLIED OCEAN RESEARCH
(2021)
Article
Engineering, Civil
Angeliki Papalou
Summary: The effectiveness of a particle-tuned mass damper in reducing the response acceleration and relative displacement of a small single story steel structure was investigated experimentally. Two cases were examined, one with a fixed weight and the other with particles filling two unequal size compartments. The substitution of the fixed weight with particles increased the attenuation of the motion. The excitation level had minimal effect on the effectiveness of the particle-tuned mass damper.
KSCE JOURNAL OF CIVIL ENGINEERING
(2023)
Article
Engineering, Mechanical
Ning Su, Jing Bian, Shitao Peng, Yi Xia
Summary: This paper investigates the vibration control performance of tuned viscous mass damper (TVMD) for impulsive stochastic excitations. The stability maximization (SM) method is proposed and compared with H infinity optimization.The study proposes an integrated optimization procedure and establishes empirical formulas for the optimal TVMD design. A numerical example validates the effectiveness of the proposed method and formulas.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Article
Acoustics
Nayan Deep Tiwari, Ankush Gogoi, Budhaditya Hazra, Qinhua Wang
Summary: This work introduces a passive control device SMA-TMDI for linked-SDOF systems subjected to base excitation, utilizing shape memory alloy and mass damper inerter for better control efficiency. The study results indicate that the SMA-TMDI system performs better compared to the traditional TMDI system in reducing total damper mass and inertia.
JOURNAL OF SOUND AND VIBRATION
(2021)
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, Civil
Fernanda de Borbon, Martin Domizio, Daniel Ambrosini, Oscar Curadelli
ENGINEERING STRUCTURES
(2020)
Article
Acoustics
Hernan Garrido, Martin Domizio, Oscar Curadelli, Daniel Ambrosini
JOURNAL OF SOUND AND VIBRATION
(2020)
Article
Construction & Building Technology
Oscar Curadelli, Marta Amani
Summary: This study investigates the performance and effectiveness of a pseudo-passive vibration control system based on gyroscopic moment in controlling lateral vibrations in beam-like structures. The results demonstrate the high effectiveness of the system in controlling tip displacement and a significant improvement over traditional tuned mass damper in structural vibration control.
STRUCTURAL ENGINEERING INTERNATIONAL
(2022)
Article
Construction & Building Technology
German Nanclares, Daniel Ambrosini, Oscar Curadelli
Summary: This paper presents a nonlinear dynamic analysis of an existing bridge using a detailed 3D finite element model, evaluating the influence of different design criteria over time on the structural behavior.
ADVANCES IN STRUCTURAL ENGINEERING
(2022)
Article
Engineering, Civil
Martin Domizio, Hernan Garrido, Daniel Ambrosini
Summary: Tuned mass dampers (TMDs) are control devices used for energy dissipation in civil structures, and their effectiveness is influenced by the duration of dynamic excitation and detuning effect. This study optimized the parameters of three different TMD configurations using the particle swarm algorithm and evaluated their performance on single-degree-of-freedom structures under different ground motions. It was found that the configuration with two TMDs in series tuned to a frequency of 50% of the fundamental frequency of the healthy structure achieved the highest effectiveness when the ductility demand is greater than 5.
ENGINEERING STRUCTURES
(2022)
Article
Mechanics
R. Codina, D. Ambrosini
Summary: Terrorist organizations often use explosives to carry out attacks in urban areas, causing significant casualties and building damage. This study focuses on the performance of ordinary building systems under extreme impulsive loads, particularly the response of confined masonry buildings to out-of-plane impulsive loads. Experimental results of explosions at different distances are presented, and the levels of damage are compared to iso-damage curves, providing insights into the resistance of buildings to different impulsive loads.
Article
Engineering, Multidisciplinary
Hernan Garrido, Martin Domizio, Oscar Curadelli, Daniel Ambrosini
Summary: Structural Health Monitoring faces challenges including uncertainty in boundary conditions, the need for a calibrated numerical model or measurements of the structure in its healthy state, variability in structure properties and boundary conditions due to environmental and operational conditions, and the possibility of damage in the virgin structure due to construction defects. This work presents a method that tackles these challenges by synthesising the response of a healthy-structure model inside a region of interest (ROI) using testing data of the (possibly) damaged structure in that ROI. The method showed accurate detection, location, and quantification of damage, outperforming measurements of the virgin structure in some cases.
STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL
(2023)
Article
Acoustics
Hernan Garrido, Martin Domizio, Oscar Curadelli, Daniel Ambrosini
Summary: This paper proposes using an inerter as a practical retrofit approach to control vibration in a chain-like structure. Analytical and numerical studies show that implementing an inerter and a damper in the upper substructure can significantly reduce deformations in the lower substructure. The inerter-based approach provides similar performance to the classical BMD but with the advantage of being an in-parallel intervention.
JOURNAL OF VIBRATION AND CONTROL
(2023)
Article
Engineering, Civil
Pablo M. Barlek Mendoza, Daniel Ambrosini, Bibiana M. Luccioni
Summary: This study investigated the maximizing energy dissipation on a seismic damper through a numerical-experimental approach. Theoretical background, experimental studies, and computational models were conducted to analyze the friction ratios. The results indicated the significant impact of friction coefficients on energy dissipation, and proposed intervals for maximizing energy dissipation based on different seismic records.
SMART STRUCTURES AND SYSTEMS
(2021)
Article
Engineering, Civil
German Nanclares, Daniel Ambrosini, Oscar Curadelli, Martin Domizio
SMART STRUCTURES AND SYSTEMS
(2020)
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)
