Vibration Control Device and its Performance under Wind Load in High-Rise Buildings

2012 ◽  
Vol 166-169 ◽  
pp. 1358-1361 ◽  
Author(s):  
Zhi Hua Dong ◽  
Ju Yun Yuan
Keyword(s):  
Vibration Control ◽  
Wind Load ◽  
Control Device ◽  
High Rise ◽  
Different Types

Based on brief introduction to the concept of vibration control, this paper discusses many different types of device for vibration control under wind load in high-rise buildings. By contrasting and analyzing the performance of each type of device, the classification and characteristics of the vibration control device for wind load are summarized, which could be used in choosing the proper device in controlling vibration under certain conditions.

Vibration Control of Buildings Using Series Rolling-Pendulum Tuned Mass Dampers

2019 ◽  
Author(s):  
Jer-Fu Wang ◽  
Chun-Hung Chen ◽  
Chang-Ching Chang ◽  
Chi-Chang Lin
Keyword(s):  
Vibration Control ◽  
Natural Frequency ◽  
Structural Control ◽  
Degrees Of Freedom ◽  
Equations Of Motion ◽  
Control Device ◽  
Tuned Mass Dampers ◽  
High Rise ◽  
Mass Damper ◽  
In Series

Abstract This paper proposes a passive vibration control device, series rolling-pendulum tuned mass damper (SRPTMD), with a “ball-in-ball” configuration. A conventional pendulum TMD (PTMD) generally requires a long cable length that usually exceeds one-story height for high-rise buildings. A rolling-pendulum TMD (RPTMD) is a mass that can roll on a base with a curvature instead of swaying with a cable, significantly reducing the requirement of vertical rooms. In addition, a ball-in-ball SRPTMD is equivalent to a system with two degrees of freedom in series. This study aimed to derive equations of motion of the primary building-SRPTMD system, conduct a parametric study for SRPTMD, and investigate the structural control performance of an SRPTMD. Results showed that an SRPTMD performed similarly to an RPTMD. One advantage of an SRPTMD is that the fundamental natural frequency of an SRPTMD can be altered to a certain extent by changing the radius ratio of the inner ball to the outer ball, whereas the natural frequency of an RPTMD can only be altered by changing the curvature of its base, which is far more difficult. Another advantage is that the two modal frequencies of an SRPTMD can be manipulated by selecting a specific set of radius ratios between the base, the outer ball, and the inner ball, which means that an SRPTMD has higher potential on multiple modes control.

Modeling and Application of TMD for Vibration Control under Wind Load in High-Rise Buildings

2012 ◽  
Vol 446-449 ◽  
pp. 3490-3494
Author(s):  
Ju Yun Yuan ◽  
Zhi Hua Dong
Keyword(s):  
Control Theory ◽  
Vibration Control ◽  
Tuned Mass Damper ◽  
Model Analysis ◽  
Wind Load ◽  
Basic Method ◽  
High Rise ◽  
Mass Damper ◽  
Development Course ◽  
Design And Construction

Based on brief introduction of the vibration control theory of tuned mass damper (TMD) and its development course, this paper puts forward the basic method in model analysis of TMD for vibration control under wind load in high-rise buildings. After analyzing the recent applications of TMD in high-rise buildings at home and abroad, the developing trend and problems to be solved in TMD design and construction are also pointed out.

scholarly journals Reliability Analysis of High Rise Building Considering Wind Load Uncertainty

2018 ◽  
Vol 4 (3) ◽  
pp. 469
Author(s):  
Yi Zhang ◽  
Keqin Yan ◽  
Tao Cheng
Keyword(s):  
Reliability Analysis ◽  
Wind Load ◽  
Engineering Structures ◽  
Safety Measures ◽  
High Rise ◽  
High Rise Building ◽  
Different Types ◽  
Reliability Methods ◽  
Wind Load Uncertainty ◽  
Distribution Type

In engineering structures, the safety problems are always depending on the respond of structures to different types of load. The safety assessment of a high rise building is highly depending on the analysis of environmental load. Many codes and practices have proposed many requirements for engineers in the design works. These include safety factors, limitations on damage, maximum deflections and so on. When violations in these requirements occur, the structure is believed to be dangerous. But once the problem becomes complicated such as multiple unknown loads in one building, it requires reliability analysis in the design. It must take care of all the assumptions and uncertainties in the structural design. In probabilistic assessment, any input variable is considered as an uncertainty. However, the traditional way to deal with these problems may have problems when uncertainties are large. Many probabilistic safety measures need to be reconsidered in engineering work. This paper, we will provide reliability analysis on a high rise building with consideration of wind load. All the most commonly applied reliability methods are been utilized in this analysis and compared base on the performance. The statistical influences including correlation and distribution type are also discussed in the same reliability problem.

Towards a standard CFD setup for wind load assessment of high-rise buildings: Part 2 – Blind test of chamfered and rounded corner high-rise buildings

2020 ◽  
Vol 205 ◽  
pp. 104282 ◽  
Author(s):  
Marie Skytte Thordal ◽  
Jens Chr Bennetsen ◽  
Stefano Capra ◽  
Andreas K. Kragh ◽  
H. Holger H. Koss
Keyword(s):  
Wind Load ◽  
Blind Test ◽  
High Rise ◽  
Rounded Corner

Simultaneous Optimal Design of the Lyapunov-Based Semi-Active Control and the Semi-Active Vibration Control Device: Inverse Lyapunov Approach

2010 ◽  
Author(s):  
Kazuhiko Hiramoto ◽  
Taichi Matsuoka ◽  
Akira Fukukita ◽  
Katsuaki Sunakoda
Keyword(s):  
Optimal Design ◽  
Lyapunov Function ◽  
Vibration Control ◽  
Active Control ◽  
Control Device ◽  
Ball Screw ◽  
Design Parameters ◽  
Resistance Force ◽  
Control Law ◽  
Lyapunov Approach

We address a simultaneous optimal design problem of a semi-active control law and design parameters in a vibration control device for civil structures. The Vibration Control Device (VCD) that is being developed by authors is used as the semi-active control device in the present paper. The VCD is composed of a mechanism of a ball screw with a flywheel for the inertial resistance force and an electric motor with an electric circuit for the damping resistance force. A new bang-bang type semi-active control law referred to as Inverse Lyapunov Approach is proposed as the semi-active control law. In the Inverse Lyapunov Approach the Lyapunov function is searched so that performance measures in structural vibration control are optimized in the premise of the bang-bang type semi-active control based on the Lyapunov function. The design parameters to determine the Lyapunov function and the design parameters of the VCD are optimized for the good performance of the semi-active control system. The Genetic Algorithm is employed for the optimal design.

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