Design strategies of viscous dampers for seismic protection of building structures: A review

2019 ◽  
Vol 118 ◽  
pp. 144-165 ◽  
Author(s):  
D. De Domenico ◽  
G. Ricciardi ◽  
I. Takewaki
Keyword(s):  
Seismic Protection ◽  
Building Structures ◽  
Design Strategies ◽  
Viscous Dampers

Influence of viscous dampers ultimate capacity on the seismic reliability of building structures

2021 ◽  
Vol 91 ◽  
pp. 102096
Author(s):  
Fabrizio Scozzese ◽  
Laura Gioiella ◽  
Andrea Dall'Asta ◽  
Laura Ragni ◽  
Enrico Tubaldi
Keyword(s):  
Building Structures ◽  
Ultimate Capacity ◽  
Viscous Dampers ◽  
Seismic Reliability

scholarly journals New structural seismic protection for high-rise building structures

2020 ◽  
Vol 22 (4) ◽  
pp. 831-848
Author(s):  
Azer A. Kasimzade ◽  
Obaidullah Abrar ◽  
Gencay Atmaca ◽  
Mehmet Kuruoglu
Keyword(s):  
Seismic Protection ◽  
Building Structures ◽  
High Rise ◽  
High Rise Building

Increasing the seismic resistance of operated buildings using special seismic protection methods

2021 ◽  
pp. 41-48
Author(s):  
Tatiana A. Belash ◽  
Elizaveta D. Erokhina
Keyword(s):  
Seismic Isolation ◽  
Computational Study ◽  
Active Regions ◽  
Seismic Protection ◽  
Seismic Resistance ◽  
Building Structures ◽  
Metal Supports ◽  
Isolation Systems ◽  
Seismic Isolation Systems

The change in the level of seismicity of buildings and structures occurs as a result of updating the maps of general seismic zoning. Ensuring the seismic resistance of buildings and structures is a factor that must be taken into account, especially during construction in seismically active regions. Nowadays, one of the main approaches to increasing seismic resistance is the use of various seismic isolation systems. It is not always profitable and rational to increase the seismic resistance of building structures or foundations for equipment by simply increasing the strength. A classification of seismic reinforcement systems is given, among which the most sparing are special methods of seismic protection in the form of seismic isolation. Practical examples of the use of seismic isolation systems to improve the seismic resistance of existing buildings are given. A computational study was carried out, the result of which showed the effectiveness of using rubber-metal supports for hanging the seismic resistance of buildings.

AN EXPERIMENTAL STUDY OF IN-PLANE, ARCH-SHAPED FLEXURAL DAMPER

2015 ◽  
Vol 2 (1) ◽  
Author(s):  
Yen-Po Wang ◽  
Di-Hung Chen ◽  
Chien-Liang Lee
Keyword(s):  
Experimental Study ◽  
Stress Concentration ◽  
Seismic Performance ◽  
Shaking Table ◽  
Seismic Protection ◽  
Building Structures ◽  
Shaking Table Tests ◽  
Earthquake Intensity ◽  
Component Test ◽  
Portal Frame

An innovative displacement-dependent metallic yielding damper designed to deform inelastically under in-plane flexural bending for seismic protection of building structures is proposed. The in-plane flexural damper that originated from a portal frame is modified by replacing the beam with a circular arch so that the effect of stress concentration can be minimized. Component tests of the in-plane dampers were conducted and compared with analytical results. Hysteresis of the component test indicates a consistent energy-dissipative characteristic of the damper. Moreover, seismic performance of the proposed damper via a series of shaking table tests was carried out. Excellent seismic performance of the proposed in-plane arched damper was observed. The acceleration responses in both peak and root-mean-squares of all floors are significantly reduced, and were greater in extent compared to the earthquake intensity increases.

MR damper-based smart passive control system for seismic protection of building structures

2006 ◽  
Author(s):  
Hyung-Jo Jung ◽  
Kang-Min Choi ◽  
Ji-Eun Jang ◽  
Sang-Won Cho ◽  
In-Won Lee
Keyword(s):  
Control System ◽  
Passive Control ◽  
Mr Damper ◽  
Seismic Protection ◽  
Building Structures

Identifying adaptive strategies employed by office building investors

2015 ◽  
Vol 33 (5) ◽  
pp. 478-493 ◽  
Author(s):  
Dulani Halvitigala ◽  
Richard G. Reed
Keyword(s):  
New Zealand ◽  
Building Materials ◽  
Physical Space ◽  
Office Buildings ◽  
Building Structures ◽  
Design Development ◽  
Design Strategies ◽  
Content Type ◽  
Office Space ◽  
Functional Efficiency

Purpose – With strategies including flexible work practices, tenants are increasingly seeking flexibility in their physical office space and layouts. The purpose of this paper is to examine to what extent investors address tenants’ changing demand for office space with reference to layouts in new and existing office buildings. Design/methodology/approach – A qualitative study comprising in-depth individual interviews with senior portfolio managers of all listed property trusts investing in the office sector in New Zealand was undertaken. Findings – The findings confirmed property investors incorporate several adaptive and flexible space design and specifications in their modern office buildings to enhance space flexibility and functional efficiency. These include adaptive building structures, efficient floor plates, flexible building services, advanced IT networking, high-quality building amenities and modern building materials. Building structures and layouts are designed to be modified quickly and cost effectively to address tenants’ changing needs. Implications affecting tenant demand for flexible spaces on their lease contracts were also identified. Research limitations/implications – The findings from this research have implications for management of office space. Although the data were sourced with reference to buildings located in New Zealand only, the findings are applicable to office buildings in other countries. Practical implications – The study provides an insight into design strategies adopted in modern office buildings to enhance space flexibility and functional efficiency. These findings are of practical application to professionals involved in the design, development, investment and valuation of modern office buildings. Originality/value – The paper provides in-depth insights into how investors meet tenants’ changing demand for physical space which is linked to delivering improved and stable market-driven returns to investors.

Experimental Investigation of Effectiveness of Smart Passive System for Seismic Protection of Building Structures

2008 ◽  
Vol 56 ◽  
pp. 355-362
Author(s):  
Hyung Jo Jung ◽  
Dong Doo Jang ◽  
Heon Jae Lee ◽  
Seok Jun Moon
Keyword(s):  
Electromagnetic Induction ◽  
Mr Damper ◽  
Shaking Table ◽  
Frame Structure ◽  
Seismic Protection ◽  
Semiactive Control ◽  
Building Structures ◽  
Passive System ◽  
Engineering Structures ◽  
Faraday’S Law

The newly developed smart passive system is based on a magnetorheological fluid (MR) damper, which is one of the most promising semiacitve control devices, and an electromagnetic induction (EMI) part, which is a power harvesting device from vibration of a structure according to Faraday’s law of electromagnetic induction. Numerical simulations recently conducted by the authors have verified that the smart passive system could be effective to reduce the structural responses in the cases of civil engineering structures such as buildings and bridges. On the other hand, the experimental validation of the system is not sufficiently carried out yet. In this study, therefore, a series of shaking table tests are conducted to experimentally investigate the effectiveness of the smart passive system for seismic protection of building structure. The model structure is a scaled six-story frame structure with the height of 3.5 m and the weight of about 8 ton. The smart passive system is installed between its base floor and the first floor. The responses of the structure are measured under several ground motions including scaled historic earthquake records. The preliminarily experimental results in the smart passive system case are compared with those in the MR damper-based semiactive control cases.

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