Loading tests of a brace-type multi-unit friction damper using coned disc springs and numerical assessment of its seismic response control effects

Sano, Takeshi; Shirai, Kazutaka; Suzui, Yasumasa; Utsumi, Yoshikazu

doi:10.1007/s10518-019-00671-8

Cited by 47 publications

(17 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The frictional unit is similar to that used in previous studies on brace type and stud type friction dampers for use in story-installation type vibration control of buildings. 24,25 The frictional unit is mainly composed of a high-tension bolt, disc springs, stainless steel plates, and friction plates, 25 as shown in Figure 3. However, an adequate length needs to be given to the slotted hole in the unit (Figures 2 and 3c) such that the maximum stroke of the friction device satisfies the required displacement of the proposed FS mechanism.…”

Section: Friction Device Used For Proposed Fs Mechanismmentioning

confidence: 99%

Assessment of a seismic tuned mass damper with friction fail‐safe mechanism for the vibration control of high‐rise buildings

Sano

Shirai

Yoshida

et al. 2021

Struct Control Health Monit

Self Cite

View full text Add to dashboard Cite

Section: Friction Device Used For Proposed Fs Mechanismmentioning

confidence: 99%

Assessment of a seismic tuned mass damper with friction fail‐safe mechanism for the vibration control of high‐rise buildings

Sano

Shirai

Yoshida

et al. 2021

Struct Control Health Monit

Self Cite

View full text Add to dashboard Cite

“…Lastly, the contribution of bottom faying surface considers transfer of the frictional force through the bolt bringing it into M-V-P (bending-shear-tension) stress-strain state while the bolt material capacity is already utilized to high extent by introduction of pretension force ( = 0.7 ). This behavior is fundamentally similar to the behavior of the bolt in the dissipative friction sliding lap-joints for seismic design [5], [6]. The only way to avoid consequent pretension loss by yielding of the bolt material under the introduction of the shear force that originates from the bottom faying surface is to reduce the pretension force providing significant elastic reserve of the bolt material [5].…”

Section: Figure 1 Friction-grip Shear Connectorsmentioning

confidence: 59%

Behavior of downstand simply supported steel‐concrete composite beam applying friction based demountable shear connection

Fodor¹,

Schäfer²

2021

ce papers

View full text Add to dashboard Cite

In order to improve sustainability of composite structures and promote the principles of circular economy in construction industry, novel demountable shear connector based on the frictional behavior was developed within the framework of Work package 2 of parent project ECON4SD (Eco Construction for Sustainable Development) at the University of Luxembourg. The demountable composite floor system is composed out of modular concrete one‐way solid slabs with equidistantly embedded Halfen HTA‐CE rail channels, double symmetric steel I section and demountable connector device assembly based on HV high strength structural bolts for preloading that provides the demountable shear connection. In this paper trilinear behavior model is proposed for the force‐slip behavior of aforementioned connector device complying to the results of the push test experimental campaign and the results of FEA simulations. Afterwards, parametric study is performed on the range of simply supported composite beams in propped and unpropped condition under uniformly distributed load applying the aforementioned shear connection validating the predictability of the composite beam bending behavior in accordance with the rules of EN 1994‐1‐1.

show abstract

“…Disc springs are axially loaded conical shaped washers with a wide range of applications [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 ]. They are specified in the European standards DIN EN 16983 [ 35 ] and DIN EN 16984 [ 36 ].…”

Section: Introductionmentioning

confidence: 99%

A New Method for the Calculation of Characteristics of Disc Springs with Trapezoidal Cross-Sections and Rounded Edges

et al. 2022

View full text Add to dashboard Cite

In the European standards specifying disc spring manufacturing, geometry, shape and characteristic, an edge rounding is prescribed. Common methods for the calculation of disc spring characteristics, even in these standards, are based on a rectangular cross-section. This discrepancy can lead to a considerable divergence of the computed characteristic from the characteristic determined by testing. In literature, this divergence has not yet been examined with regard to rounded edges. In this paper, a new method addressing this problem is introduced. For this purpose, the geometry of idealized disc springs is parameterized. Based on four edge radii and two angles of the inner and outer faces, equations to compute the initial cone angle and the lever arm are introduced. These equations are used to formulate an algorithm to adapt other computation methods to non-rectangular cross-sections and rounded edges. The method is applied to the formulas by Almen–Laszlo, Curti–Orlando, Zheng and those by Kobelev. FE simulations of disc springs with rounded edges and a non-rectangular cross-section were used to verify the new formulas. The results show that the introduced method can be applied to known characteristic computation methods and result in a model expansion taking cross-section variations into account. The adjusted characteristics show more accurate alignment to the FE simulation for the cross-section variations investigated. These findings not only close the geometric gap between the manufacturing guidelines and the computation on an analytical basis, they also define a new parameter space for designs of disc springs and a corresponding force computation method to optimize spring characteristics.

show abstract

Loading tests of a brace-type multi-unit friction damper using coned disc springs and numerical assessment of its seismic response control effects

Cited by 47 publications

References 35 publications

Assessment of a seismic tuned mass damper with friction fail‐safe mechanism for the vibration control of high‐rise buildings

Assessment of a seismic tuned mass damper with friction fail‐safe mechanism for the vibration control of high‐rise buildings

Behavior of downstand simply supported steel‐concrete composite beam applying friction based demountable shear connection

A New Method for the Calculation of Characteristics of Disc Springs with Trapezoidal Cross-Sections and Rounded Edges

Contact Info

Product

Resources

About