Numerical assessment of vibration control systems for multi-hazard design and mitigation of glass curtain walls

Bedon, Chiara

doi:10.1016/j.jobe.2017.11.004

Cited by 75 publications

(36 citation statements)

References 49 publications

(65 reference statements)

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“…The vibration response of glass structures is a relatively recent research topic. Most of the literature studies include experimental, analytical and numerical analyses voted to explore the dynamic behavior of single monolithic or LG members, with limited efforts for the performance assessment of complex assemblies, see for example [25][26][27][28][29][30].…”

Section: Vibration Analysis and Human-structure Interaction (Hsi) Phementioning

confidence: 99%

“…Sci. 2019, 9, x FOR PEER REVIEW 4 of 26 dynamic behavior of single monolithic or LG members, with limited efforts for the performance assessment of complex assemblies, see for example [25][26][27][28][29][30]. As a general rule, glass slabs should be verified against vibrations under operational conditions in the same way of pedestrian structures composed of other constructional materials.…”

Section: Vibration Analysis and Human-structure Interaction (Hsi) Phementioning

confidence: 99%

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Reliability of Field Experiments, Analytical Methods and Pedestrian’s Perception Scales for the Vibration Serviceability Assessment of an In-Service Glass Walkway

Bedon

Fasan

2019

Applied Sciences

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The vibration performance of pedestrian structures attracts the attention of several studies, especially with respect to unfavorable operational conditions or possible damage scenarios. Given a pedestrian system, specific vibration comfort levels must be satisfied in addition to basic safety requirements, depending on the class of use, the structural typology and the materials. To this aim, guideline documents of the literature offer simplified single-degree-of-freedom (SDOF) approaches to estimate the maximum expected vibrations and to verify the required comfort limits. Most of these documents, however, are specifically calibrated for specific scenarios/structural typologies. Dedicated methods of design and analysis, in this regard, may be required for structural glass pedestrian systems, due to their intrinsic features (small thickness-to-size ratios, high flexibility, type and number of supports, live-to-dead load ratios, use of materials that are susceptible to mechanical degradation with time/temperature/humidity, etc.). Careful consideration could be then needed not only at the design stage, but also during the service life of a given glass walkway. In this paper, the dynamic performance of an in-service glass walkway is taken into account and explored via field vibration experiments. A set of walking configurations of technical interest is considered, involving 20 volunteers and several movement features. The vibration comfort of the structure is then assessed based on experimental estimates and existing guideline documents. The intrinsic uncertainties and limits of simplified approaches of literature are discussed, with respect to the performance of the examined glass walkway. In conclusion, the test predictions are also used to derive “perception index” data and scales that could support a reliable vibration comfort assessment of in-service pedestrian glass structures.

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Section: Vibration Analysis and Human-structure Interaction (Hsi) Phementioning

confidence: 99%

Section: Vibration Analysis and Human-structure Interaction (Hsi) Phementioning

confidence: 99%

Reliability of Field Experiments, Analytical Methods and Pedestrian’s Perception Scales for the Vibration Serviceability Assessment of an In-Service Glass Walkway

Bedon

Fasan

2019

Applied Sciences

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“…For such cases, a significant amount of studies were carried out by Bedon and Amadio [14][15][16] for the mitigation and enhancement of glass curtains under extreme loads based on the potential of special mechanical connectors inserted between the primary structure and exterior glazing facade. And also they investigated the behavior of a cable-supported glazing facade subjected to high-and medium-level air blast loads [17,18].…”

Section: Introductionmentioning

confidence: 99%

Seismic Performance Evaluation of Double‐Skin Semi‐Base‐Isolated Building Using Incremental Dynamic Analysis

Parsaeimaram

Fang

Luo

et al. 2018

Advances in Civil Engineering

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Base isolation is a widely accepted earthquake damage prevention technique. is method decouples the superstructure from the base by putting a flexible layer under each column, thereby elongating the time period of structures. Semi-base isolation (SBI) in double-skin structures is an effective technique to reduce the dynamic responses of structures due to earthquake motions, by utilizing the isolation devices in part of it instead of the entire base. is study presents a double-skin structure consisting of outer fixed base frames with shear walls that have been detached from the inner core with a minor gap. e inner core of the structure has been dissociated from the base using the elastomeric bearings. Seismic response of 10-story double-skin structure with inner isolated core was compared to that of inner fixed base core to consider the yielding and collapse probability of the structure using the incremental dynamic analyses (IDA). e results showed that the time period in SBI buildings can be adjusted with the use of coupling beams between the inner and outer frames. Also, the time period and interstory drift ratio are both reduced as more floors are given coupling beams. However, these coupling beams are the most effective at the topmost floors.

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“…In [28,29], it was demonstrated that even ordinary glass curtain walls can be efficiently involved in the dynamic response of multi-storey buildings under seismic events, as well as multi-hazards in general. Based on special dissipative connectors, the feasibility of a "distributed-Tuned Mass Damper (TMD)" concept was numerically explored, giving evidence of certain potential benefits for both the primary building and also for the glass facade components.…”

Section: Research In Support Of Seismic Designmentioning

confidence: 99%

“…Several efforts have been also spent in the past for the design and analysis of glass structures with bolted connections (see for example [17][18][19][20][21]), but only few research investigations are available for point-supported facades in earthquake-prone regions (i.e., [22,23]), with a focus on the intrinsic flexibility under in-plane seismic loads. The dissipation capacity of ordinary curtain walls under seismic events was partly assessed also in [24,25] with the support of experiments, while an efficient, dissipative timber-glass composite shear wall was proposed in [26,27] for earthquake resistant buildings.In [28,29], it was demonstrated that even ordinary glass curtain walls can be efficiently involved in the dynamic response of multi-storey buildings under seismic events, as well as multi-hazards in general. Based on special dissipative connectors, the feasibility of a "distributed-Tuned Mass Damper (TMD)" concept was numerically explored, giving evidence of certain potential benefits for both the primary building and also for the glass facade components.…”

mentioning

confidence: 99%

Safety Issues in the Seismic Design of Secondary Frameless Glass Structures

Bedon

Amadio

Noè

2019

Safety

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Glass is largely used in buildings, in the form of an innovative and versatile material. Both for novel and existing constructions, secondary glass systems are frequently realized to interact with primary components of different materials. In most cases, the structural challenge deriving from the intrinsic brittleness and vulnerability of glass is efficiently controlled via laminated (LG) multi-layer sections. However, further potential risks for people should be properly minimized, like for example, in the presence of extreme loads. This is the case of seismic regions, where dedicated calculation methods are required to accommodate displacement and resistance demands, but design specifications are rarely provided by existing standards for earthquake resistant buildings. Even more attention is needed for frameless glass systems in which the bracing members (i.e., continuous frames, cable-nets, etc.,) are reduced to a minimum, in favour of metal point connections (i.e., bolts and mechanical fixings, friction clamps, etc.). This paper aims at discussing the current design requirements for the seismic performance assessment of these relatively simple but challenging structural solutions, with careful consideration for the Italian scenario, where a practical support for design can be found in the CNR-DT 210/2013 technical document. Based on a case-study system, major issues, open questions and uncertainties or critical aspects for the seismic analysis and design of secondary frameless glass assemblies are thus emphasized.

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Numerical assessment of vibration control systems for multi-hazard design and mitigation of glass curtain walls

Cited by 75 publications

References 49 publications

Reliability of Field Experiments, Analytical Methods and Pedestrian’s Perception Scales for the Vibration Serviceability Assessment of an In-Service Glass Walkway

Reliability of Field Experiments, Analytical Methods and Pedestrian’s Perception Scales for the Vibration Serviceability Assessment of an In-Service Glass Walkway

Seismic Performance Evaluation of Double‐Skin Semi‐Base‐Isolated Building Using Incremental Dynamic Analysis

Safety Issues in the Seismic Design of Secondary Frameless Glass Structures

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