Seismic effectiveness of hysteretic tuned mass dampers for inelastic structures

2020 ◽  
Vol 216 ◽  
pp. 110591
Author(s):  
Antonio Boccamazzo ◽  
Biagio Carboni ◽  
Giuseppe Quaranta ◽  
Walter Lacarbonara
Keyword(s):  
Tuned Mass Dampers ◽  
Inelastic Structures

Seismic response control of elastic and inelastic structures by using passive and semi-active tuned mass dampers

2011 ◽  
Vol 8 (3) ◽  
pp. 239-252 ◽  
Author(s):  
Sung-Sik Woo ◽  
Sang-Hyun Lee ◽  
Lan Chung
Keyword(s):  
Seismic Response ◽  
Tuned Mass Dampers ◽  
Response Control ◽  
Seismic Response Control ◽  
Inelastic Structures

Effectiveness of Location and Number of Multiple Tuned Mass Damper for Seismic Structures

2020 ◽  
Vol 9 (6) ◽  
pp. 780-783
Keyword(s):  
Seismic Response ◽  
Software Tool ◽  
Tuned Mass Damper ◽  
Structure Study ◽  
Structural Performance ◽  
Mass Ratio ◽  
Tuned Mass Dampers ◽  
Maximum Reduction ◽  
Mass Damper ◽  
Earthquake Data

Tuned mass dampers (TMD) are one of the most reliable devices to control the vibration of the structure. The optimum mass ratio required for a single tuned mass damper (STMD) is evaluated corresponding to the fundamental natural frequency of the structure. The effect of STMD and Multiple tuned mass dampers (MTMD) on a G+20 storey structure are studied to demonstrate the damper’s effectiveness in seismic application. The location and number of tuned mass dampers are studied to give best structural performance in maximum reduction of seismic response for El Centro earthquake data. The analysis results from SAP 2000 software tool shows damper weighing 2.5% of the total weight of the structure effectively reduce the response of the structure. Study shows that introduction of 4-MTMD at top storey can effectively reduce the response by 10% more in comparison to single tuned mass damper. The use of MTMD of same mass ratio that of STMD is more effective in seismic response.

A mixed tetrahedral element with nodal rotations for large-displacement analysis of inelastic structures

2016 ◽  
Vol 108 (7) ◽  
pp. 722-749 ◽  
Author(s):  
Nicola A. Nodargi ◽  
Federica Caselli ◽  
Edoardo Artioli ◽  
Paolo Bisegna
Keyword(s):  
Large Displacement ◽  
Displacement Analysis ◽  
Tetrahedral Element ◽  
Inelastic Structures

Study on human-induced vibration of a cable-stayed bridge without backstays located in abrupt valley

2021 ◽  
pp. 136943322110203
Author(s):  
Yanru Wu ◽  
Junxin Li ◽  
Qing Sun
Keyword(s):  
Empirical Formula ◽  
Dynamic Instability ◽  
Vertical Vibration ◽  
Comfort Level ◽  
Tuned Mass Dampers ◽  
Dynamic Simulations ◽  
Maximum Acceleration ◽  
Cable Stayed Bridge ◽  
Crowd Density ◽  
Lateral Modes

This research aims to assess the pedestrian comfort and to control human-induced vibration of an arch tower cable-stayed bridge without backstays located in canyon. Dynamic simulations of human-induced vibration were carried out with a mode-by-mode approach, and the results indicated that a total of seven lateral and vertical modes of the bridge may suffer from excessive vibrations at the design crowd density. Based on the periodic walking force, the structure response under pedestrian loads was evaluated performing dynamic analyses with two Finite Element models of the footbridge. A single tuned mass damper (STMD) control system was developed for control of human-induced vibration, which consisted of four tuned mass dampers mounted on the mid-span of bridge to enhance damping ratios of lively modes. The results indicate that the maximum acceleration for the first-order lateral and second-order vertical vibration at the design crowd density exceed the associated threshold values referring to the comfort level 1 (CL1) Criteria. The critical pedestrian number of lateral dynamic instability estimated by the Dallard’s empirical formula is much smaller than the dynamic design pedestrian number; and the Dallard’s empirical formula is applicable to estimate the critical pedestrian number of lateral dynamic instability for this bridge by comparing with Pedroe Inês footbridge. The damping ratios for both the vertical and lateral modes increase appreciably after installing the tuned mass dampers and no evidence of large-amplitude vibrations has been observed, leading to the realization of satisfactory comfort levels, which can provide reference for vibration reduction design of this kind of bridge.

Seismic response control of asymmetric buildings using tuned mass dampers

2019 ◽  
Vol 28 (18) ◽  
Author(s):  
Ahmad Edris Taha ◽  
Said Elias ◽  
Vasant Matsagar ◽  
Arvind Kumar Jain
Keyword(s):  
Seismic Response ◽  
Tuned Mass Dampers ◽  
Response Control ◽  
Seismic Response Control ◽  
Asymmetric Buildings

A comparison between different robust optimum design approaches: Application to tuned mass dampers

2010 ◽  
Vol 25 (1) ◽  
pp. 108-118 ◽  
Author(s):  
Giuseppe Carlo Marano ◽  
Rita Greco ◽  
Sara Sgobba
Keyword(s):  
Optimum Design ◽  
Tuned Mass Dampers ◽  
Robust Optimum Design

scholarly journals One to one resonant double Hopf bifurcation in aeroelastic oscillators with tuned mass dampers

2003 ◽  
Vol 262 (2) ◽  
pp. 201-217 ◽  
Author(s):  
V. Gattulli ◽  
F. Di Fabio ◽  
A. Luongo
Keyword(s):  
Hopf Bifurcation ◽  
Tuned Mass Dampers ◽  
Double Hopf Bifurcation ◽  
One To One
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