A hybrid passive control device for steel structures, I: Development and analysis

Marshall, Justin D.; Charney, Finley A.

doi:10.1016/j.jcsr.2010.04.005

Cited by 66 publications

(21 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This isolation bearing was shown to be effective at mitigating pounding and reducing large displacements when the gap size is limited. () By taking advantage of both a rubber damper (for the first phase) and buckling‐restrained brace (for the second phase), a hybrid passive device has also been proposed that can produce large dissipation at all levels and large stiffness at large seismic events to protect frame structures . To mitigate the pounding between the isolated structure and the perimeter moat wall, Zargar et al() proposed an isolation system with a “phased gap damper.” This phased gap damper is composed of a gap element and an energy dissipation device, where the gap element allows the system to have additional damping only at large intensity shaking and no effect at low to medium intensity shaking.…”

Section: Introductionmentioning

confidence: 99%

Enhanced passive control of dual‐mode systems under extreme seismic loading: An optimal control approach

Tehrani

Harvey

2019

Struct Control Health Monit

View full text Add to dashboard Cite

Devastating economic losses can arise from damage to mission-critical facilities, structures, and systems supporting vital equipment (systems in general). One of the sources of damages to such systems is displacements in excess of the displacement capacity. The increase in displacement demand is more pronounced in systems located on soft soils 1-3 or when they are exposed to long-period seismic loadings or near-fault excitations with large pulse duration. 4,5 Exceeding the displacement capacity results in the pounding between adjacent structures or the impact in system's components. [6][7][8] Pounding/impact produces harmful undesired transmitted acceleration to the system, [9][10][11][12] which is detrimental for acceleration sensitive components.The most straightforward solution to mitigate impact is to increase the displacement capacity. However, it is not always possible to increase the displacement capacity because of environmental limitations or cost prohibitions, in both new construction and retrofit of an existing structure. 8,9 In the literature, different solutions for pounding mitigation have been proposed and assessed. One method is to connect adjacent structures at some specific locations. These connections enforce the adjacent structures to have in-phase motions with one another. [13][14][15] For instance, the use of hard rubber bumpers or stiff linking between the segments of a bridge can improve the bridge behavior during severe earthquakes 13 or inserting a shock-absorbing material such as rubber for pounding mitigation in buildings. 8 Alternatively, a pair of pressurized fluid-viscous dissipaters was used for pounding mitigation between a church structure and its bell tower. 7 Applying a similar concept, a share tuned mass damper between two adjacent tall buildings can reduce both structural responses and the probability of pounding. 14 Others have shown that using links such as springs, dashpots, or viscoelastic elements between two adjacent three-story buildings can significantly reduce the gap size and prevent pounding. 15 Another solution to this problem is to reduce the displacement demand via some energy dissipative mechanisms, which has been studied extensively. For instance, increasing the damping in an isolation system reduces the isolator displacement and base shear. [16][17][18] Approaches based on semi-active control have also been developed to decrease structural displacement. 19 Recently, inerters have been shown to be effective for response reduction as well. 20,21 Although the above-mentioned solutions have shown to be effective, there are some drawbacks with these approaches, and several studies showed that devastating damage to systems has been observed under high-amplitude seismic loadings, even with the presence of some energy dissipative mechanisms. 4,7,17 One of the disadvantages of connecting adjacent structures is the impairing of the dynamics of each individual structures. In addition, reducing the displacement demand comes at the expense of increasing the total transfer...

show abstract

Section: Introductionmentioning

confidence: 99%

Enhanced passive control of dual‐mode systems under extreme seismic loading: An optimal control approach

Tehrani

Harvey

2019

Struct Control Health Monit

View full text Add to dashboard Cite

show abstract

“…Hybrid passive control damper (HPCD) consisting of high-damping rubber damper in series with a buckling-restrained brace (BRB) was developed to dissipate multilevel seismic energy [12]. Christopoulos and Montgomery suggested that viscoelastic coupling damper (VCD) consists of VE material, steel plate, and anchor to reduce both the wind and earthquake response of tall shear wall buildings [13].…”

Section: Introductionmentioning

confidence: 99%

Development of a Multiaction Hybrid Damper for Passive Energy Dissipation

Roh

Hur

Choi³

et al. 2018

Shock and Vibration

View full text Add to dashboard Cite

A multiaction hybrid damper (MHD) is designed to have independent hysteretic characteristics under small and large loading conditions, and its control performance for building structures excited by wind or earthquake load is verified. The MHD is composed of steel elements, two friction pads, and two lead rubber bearings (LRBs). Because the friction pads and the LRBs are in series connection, only the LRBs deform before the friction pad slippage occurs. After the friction slippage, the damper deformation concentrates on the friction pads. The initial stiffness and hysteresis are dependent on the properties of the LRB, and the maximum force is determined by the friction pad. Accordingly, the load-deformation behaviors before/after the friction slippage can be independently designed to show optimal performance for a building structure subject to wind and earthquake loads. The cyclic loading tests of a full scale MHD were conducted to evaluate the multiaction behaviors and energy dissipation capacity of the MHD. The control performance of the MHD damper is analytically investigated by using a 20-story steel structure subject to wind loads and a 15-story RC structure excited by earthquake loads. The MHD damper showed good performance for reducing both the linear wind-induced and nonlinear earthquake-induced responses.

show abstract

“…Controlling systems are designed to protect buildings; bridges; and industrial plants from severe vibrations in seismically active regions [1]. There are different controlling systems, also known as earthquake protective systems, such as simple passive devices and fully active and hybrid systems [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

The Performance of Structure-Controller Coupled Systems Analysis Using Probabilistic Evaluation and Identification Model Approach

Kaloop

Bigdeli

2017

Shock and Vibration

View full text Add to dashboard Cite

This study evaluates the performance of passively controlled steel frame building under dynamic loads using time series analysis. A novel application is utilized for the time and frequency domains evaluation to analyze the behavior of controlling systems. In addition, the autoregressive moving average (ARMA) neural networks are employed to identify the performance of the controller system. Three passive vibration control devices are utilized in this study, namely, tuned mass damper (TMD), tuned liquid damper (TLD), and tuned liquid column damper (TLCD). The results show that the TMD control system is a more reliable controller than TLD and TLCD systems in terms of vibration mitigation. The probabilistic evaluation and identification model showed that the probability analysis and ARMA neural network model are suitable to evaluate and predict the response of coupled buildingcontroller systems.

show abstract

A hybrid passive control device for steel structures, I: Development and analysis

Cited by 66 publications

References 12 publications

Enhanced passive control of dual‐mode systems under extreme seismic loading: An optimal control approach

Enhanced passive control of dual‐mode systems under extreme seismic loading: An optimal control approach

Development of a Multiaction Hybrid Damper for Passive Energy Dissipation

The Performance of Structure-Controller Coupled Systems Analysis Using Probabilistic Evaluation and Identification Model Approach

Contact Info

Product

Resources

About