Seismic Strengthening of RC Structures Using Wall-Type Kagome Damping System

Hur, Moo-Won; Lee, Yonghun; Jeon, Min-Jun; Lee, Sang‐Hyun

doi:10.3390/buildings12010041

Cited by 3 publications

(1 citation statement)

References 22 publications

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“…Installing VWDs on the lower levels of a building effectively decreases the floor acceleration values and improves the inter-storey shear pressures and base shear. Hur [21] studied the mechanical characteristics of the Kagome truss damper and proposed a wall-type Kagome damping system (WKDS) for the seismic retrofitting of existing RC structures. The WKDS was evaluated through tests and analysis and showed increased stiffness, strength, energy dissipation, and seismic damage mitigation in RC frame structures.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Pole Repulsive Damper (Mprd): A Promising Solution for Seismic Protection of Structures

Kasaram,

Vijayakumar,

Cruze

et al. 2023

ACAE

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Owing to its high energy dissipation characteristics, the passive damper is an effective means of mitigating natural hazards for structures. In this study, a novel magnetic pole repulsive damper (MPRD), designed for reducing structural responses during natural hazards such as earthquakes, was developed and its performance was validated. The MPRD is an effective solution for seismic protection that works on the principle of magnetic repulsion and has a higher energy dissipation capacity than conventional dampers. The MPRD was fabricated using mild steel, neodymium magnets, and a set of helical springs. Two scaled reinforced concrete frames were tested using a 50 kN loading actuator. One frame was equipped with the MPRD, while the other served as a conventional frame for comparison. The frame with the MPRD showed reduced displacements. Compared with the conventional frame, that with the MPRD exhibited an increase in load of 40 % and an increase in energy dissipation of 6,44 %. Further, an increase in lateral stiffness, a 19,23 % increase in stiffness degradation, and changes in crack patterns were observed in the frame with MPRD compared to the conventional frame. The study's success in validating the MPRD performance in reducing structural responses in moderate to high seismicity regions makes it a promising solution for building seismic protection.

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Section: Introductionmentioning

confidence: 99%

Magnetic Pole Repulsive Damper (Mprd): A Promising Solution for Seismic Protection of Structures

Kasaram,

Vijayakumar,

Cruze

et al. 2023

ACAE

View full text Add to dashboard Cite

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Development of Double Frame Method to improve the seismic performance of low-rise reinforced concrete buildings

Hur,

Lee,

Park

et al. 2024

Journal of Asian Architecture and Building Engineering

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Leaf Area Density as an urban forestry planning and management tool

Kenney¹

2000

The Forestry Chronicle

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Many of the benefits that we derive from urban forests are directly or indirectly related to the leaf area of the forest. If we are to consider these multiple benefits at the level of the forest, the use of Leaf Area Density (LAD) provides some advantages over other often used measures. Since many factors in the urban landscape can limit leaf area, Potential Leaf Area Density (PLAD) can provide a measure of the upper limit to leaf area density. Using these two measures, urban forest planners and managers can integrate many of the issues associated with broader aspects of the structure and benefits of the forest under their jurisdiction. Some planning, policy, and educational applications of LAD and PLAD are discussed.Key words: urban forestry management and planning, leaf area density Plusieurs de benefices que nous retirons des for& urbaines sont directement et indirectement relikes 2 la superficie de la couverture foliaire des for& Si nous consideons ces nombreux benefices au niveau de la foret, l'utilisation de la densit6 de la couverture foliaire (DCF) apporte certains avantages par rapport aux autres mesures souvent utilis6es. Puisque plusieurs facteurs du paysage urbain peuvent limiter la surface de la couverture foliaire, la densite potentielle de la couverture foliaire (DPCF) peut constituer une mesure du niveau supkrieur de la densite de la couverture foliaire. En utilisant ces deux mesures, les gestionnaires et les arnknagistes des for& urbaines peuvent integrer plusieurs des questions associees aux aspects plus gCn6raux de la structure et des benefices des for& sous leur juridiction. Quelques applications du DCF et du DPCF en matikre de planification, de politique et d'enseignement sont discutees.Mots-cl6s: amenagement et planification des for& urbaines, densite de la couverture foliaire

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Seismic Strengthening of RC Structures Using Wall-Type Kagome Damping System

Cited by 3 publications

References 22 publications

Magnetic Pole Repulsive Damper (Mprd): A Promising Solution for Seismic Protection of Structures

Magnetic Pole Repulsive Damper (Mprd): A Promising Solution for Seismic Protection of Structures

Development of Double Frame Method to improve the seismic performance of low-rise reinforced concrete buildings

Leaf Area Density as an urban forestry planning and management tool

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