Development of V-Shaped Hybrid Mass Damper and its Application to High-Rise Buildings

Abstract A hybrid mass damper system has been developed with a view to counteracting wind- and earthquake-excited vibrations of large high-rise building structures. In order to eliminate the large space needed to accommodate a pendulum-type mass damper adapted to the long period of high-rise building, mechanism has been devised for suspending the auxiliary mass on a V-shaped rail sliding on rollers. The base angle of the V-shaped rail is varied for adjusting the natural period of the mass damper system. A suboptimal algorithm based on the minimum norm method has been adopted for designing the auxiliary mass driving system. Three units of this damper system, each equipped with auxiliary mass weighing 110 tons, have been installed on a 52-story building. Satisfactory performance conforming in all practical aspects with design has been verified from vibration test on actual building after installation. As sequel, the functioning of the system during the first year of service is also reported.

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Earthquake induced floor accelerations on a high-rise building: Scale model tests on a shaking table

IABSE Congress, Christchurch 2021: Resilient technologies for sustainable infrastructure ◽

10.2749/christchurch.2021.1312 ◽

2021 ◽

Author(s):

Fabio Rizzo ◽

Alessandro Pagliaroli ◽

Giuseppe Maddaloni ◽

Antonio Occhiuzzi ◽

Andrea Prota

Keyword(s):

Soil Structure ◽

Shaking Table ◽

Soil Structure Interaction ◽

Scale Model ◽

Structural Elements ◽

Shaking Table Tests ◽

Building Model ◽

High Rise ◽

High Rise Building ◽

Story Building

<p>The paper discusses results of shaking table tests on an in-scale high-rise building model. The purpose was to calibrate a dynamic numerical model for multi-hazard analyses to investigate the effects of floor acceleration. Accelerations, because of vibration of non-structural elements, affect both the comfort and safety of people. The research investigates the acceleration effects of both seismic and wind forces on an aeroelastic in-scale model of a multi-story building. The paper discusses the first phase of experiments and gives results of floor accelerations induced by several different base seismic impulses. Structural analyses were first performed on the full-scale prototype to take soil-structure interaction into account. Subsequently the scale model was designed through aeroelastic scale laws. Shaking table experiments were then carried out under different base accelerations. The response of the model and, in particular, amplification of effects from base to top are discussed.</p>

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Active mass damper system for high-rise buildings using neural oscillator and position controller considering stroke limitation of the auxiliary mass

10.1117/12.2219116 ◽

2016 ◽

Author(s):

J. Hongu ◽

D. Iba ◽

M. Nakamura ◽

I. Moriwaki

Keyword(s):

Neural Oscillator ◽

Active Mass ◽

High Rise ◽

Mass Damper ◽

Position Controller ◽

Active Mass Damper ◽

Auxiliary Mass

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Evaluation of the performance of high-rise building structures with plan ‘H’ shaped for earthquake with height increase (Case study: Apartment Urban Sky-Bekasi)

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/878/1/012053 ◽

2021 ◽

Vol 878 (1) ◽

pp. 012053

Author(s):

E Nehe ◽

P Simanjuntak ◽

S P Tampubolon

Keyword(s):

Building Structures ◽

Output Data ◽

High Rise ◽

Earthquake Force ◽

Earthquake Resistant ◽

Height Increase ◽

Design Earthquake ◽

Story Building ◽

Industrial Center

Abstract Currently, Bekasi City is developing into a residence for an urban, industrial center, and built apartments. One of them is the Urban Sky-Bekasi Apartment. This researched raises by an apartment as a case study to evaluate the performance of multi-story building structures as earthquake-resistant buildings. This researched conduct by add the original building height to 8 m (a basic height equals 102 m and a new height equals 110 m) to analyze whether the planning data made could still bear the same load with different heights and could still be categorized as earthquake-resistant buildings. From the results of the SAP-2000 output. The value of the basic static and dynamic shear forces in a 110 m building is always greater than a 102 m building in both the X and Y directions, this indicates that the taller a building is, the higher the design earthquake force used will be. The displacement in a 110 m building is always bigger than a 102 m building in both the X and Y directions. The weakest strength of the structure in a 110 m building is on the 29th floor in the X directions and Y directions, while the 102 m building is on the 26th floor in the X directions and 24 directions. It shows that with the addition of high SAP-2000 output data such as displacement, drift ratio, and other data after analysis shows that a 110 m building is categorized as an earthquake-resistant building according to SNI 1726-2012.

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