Seismic upgrading of isolated bridges with SF-ED devices: Analytical study validated by shaking table testing

Lakušić, Stjepan

doi:10.14256/jce.2274.2017

Cited by 3 publications

(3 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The extensive innovative and ample original analytical and experimental investigations discussed and used in this paper were performed during the past longer period [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19], for the purpose of defining the real potential for practical application of the new HC-RMS-GOSEB system for efficient seismic protection of reinforced concrete and other structures in high rise construction.…”

Section: Results: Conventional and Hc-rms-goseb Systemmentioning

confidence: 99%

“…Important technological advances and innovations have been created by the authors based on conducted long-term original analytical and experimental research within several international projects, [1], [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19], focused on efficient mitigation of earthquake effects upon engineering structures. Our studies have been planned and realized considering the most recent analytical advances, [3] & [20], and suitable experimental modeling developments, [2], in this specific field.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Comparative analysis of conventional and new seismically isolated structure

Ristić¹,

Vučinić²,

Ristic³

et al. 2021

Građ materijali i konstrukcije

View full text Add to dashboard Cite

Extensive analytical and experimental research has been done by the authors directed to mitigation of the effects of earthquakes on structures. The research results mainly represent parts of the realized several related international projects. A selected part of the analytical studies directed to comparison between conventional and seismically isolated frame structures is presented in this paper. The responses of the applied newely developed advanced seismic isolation system HC-RMS-GOSEB to the simulated input excitation of three representative earthquakes of intensity 0.50g, have shown that it is very effective for construction of vibro-isolated and seismically resistant buildings, providing activated multistage seismic response and globally optimized seismic energy balance. Its application achieves an increase in the vibration period of the structure, far enough from the dominant period of seismic excitation. The results of the research confirm that this system is a potential solution for achieving low-cost and highly efficient protection of buildings.

show abstract

Section: Results: Conventional and Hc-rms-goseb Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparative analysis of conventional and new seismically isolated structure

Ristić¹,

Vučinić²,

Ristic³

et al. 2021

Građ materijali i konstrukcije

View full text Add to dashboard Cite

show abstract

“…When these retainers are placed, the risk of bridge girder slipping from the bearing block is reduced to minimum, as presented on Figure 24 [80]. Additional approach to achieving robustness in case of an earthquake is by isolating the bridge foundations, as presented in [81]. Sacrificial and protective devices are used as measures for achieving robustness in the case of extreme events.…”

Section: Figure 18 Zipper Type Progressive Collapse Of Cable-stayed Bridgementioning

confidence: 99%

Bridge failures, forensic structural engineering and recommendations for design of robust structures

2021

JCE

View full text Add to dashboard Cite

A review of forensic structural engineering, which is a strategy that follows after bridge failure, is presented in the paper. A detailed statistical analysis, and worldwide systematisation of available bridge failure data for the 1966-2020 period, are given. More than six hundred cases of partial or full collapse of bridges are analysed in detail, and causes that have led to their failure are examined. Failure of each of these bridges was in most cases not caused by a single factor, i.e. the main cause was most often just a trigger in the cause-and-effect sequence of events that contributed to such failure. Consequently, in addition to main causes, the influence of human factor, as a precondition leading to failure, is considered in each of the analysed cases. Types of progressive collapse, being a critical structural failure mechanism, are described in the second part of the paper, with an emphasis on bridges. An overview of the theory of structural robustness is also given. Design guidelines and approaches, aimed at preventing catastrophic failure and creating more robust structures, are presented. Methods for achieving robustness in the design of new bridges and in the strengthening of the existing ones are also described, and practical real-life examples are provided.

show abstract

Experimental and Numerical Study of Energy Dissipation Components of a New Metallic Damper Device

Zlatkov

Ristic

Zorić

et al. 2022

J. Vib. Eng. Technol.

View full text Add to dashboard Cite

Purpose The novel metallic damper device for passive vibration control of structures, which is designed primarily for seismic protection of buildings, is described in this paper. It consists of the base plate, fixed into foundation, with two concentric cycles of vertical components and a middle steel activating plate anchored to the isolated structure. During an earthquake, the middle steel activating plate moves together with main structure causing bending of vertical components. Seismic energy is absorbed due to plastic deformation of the vertical components of the damper. The performance of various vertical components, the key elements of the novel damper is studied in this paper. The advantages of this type of damper reflect in its ability to adapt its own features depending on the intensity of the earthquake and that it has equivalent characteristics in every horizontal direction due to rotational symmetry. Methods Sixteen experimental tests of the vertical components of the damper, were conducted to obtain their hysteretic behaviour. Numerical models using the finite element method and the Abaqus/Standard software were developed, validated and verified with experimentally obtained results. Results The experimental results show significant energy absorption of the vertical components of the novel damper. Numerical models can be used in further research instead of expensive experimental tests. Conclusions The vertical components of the novel damper possess extraordinary hysteretic performance. If the components of the energy dissipation device are properly designed for maximum displacements, the device is not expected to suffer heavy damage or total failure during earthquakes.

show abstract

Seismic upgrading of isolated bridges with SF-ED devices: Analytical study validated by shaking table testing

Cited by 3 publications

References 20 publications

Comparative analysis of conventional and new seismically isolated structure

Comparative analysis of conventional and new seismically isolated structure

Bridge failures, forensic structural engineering and recommendations for design of robust structures

Experimental and Numerical Study of Energy Dissipation Components of a New Metallic Damper Device

Contact Info

Product

Resources

About