Performance-Based Design and Optimization of Buckling Restrained Knee Braced Truss Moment Frame

Yang, T.Y.; Li, Yuanjie; Leelataviwat, Sutat

doi:10.1061/(asce)cf.1943-5509.0000558

Cited by 36 publications

(15 citation statements)

References 8 publications

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“…This controlled yield mechanism and inelastic behavior limit the forces of all elements outside the special segment to the ultimate capacity of the special segment. Thus, the system remains elastic [14,15]. On the other hand, in this type of structural system, it is possible to increase the web members in special segments, the degree of indeterminacy, and the stiffness of the structure.…”

Section: The Special Truss Moment Frame (Stmf)mentioning

confidence: 99%

Numerical study of the effect of geometric arrangement of the truss on the response modification factor of the special truss moment frame (STMF)

2021

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The purpose of the present study was to investigate the effect of the geometric arrangement of the trusses on the response modification factor of the special truss moment frame. For this purpose, six different geometric arrangements for the three types of trusses (Vierendeel, multiple Vierendeel panels, and X-diagonals) were considered. The results were obtained based on non-linear static analysis of two- and three-span frames for 4- and 8-story structures with the given geometric arrangements. According to the results obtained, different truss arrangements can affect the response modification factor by about 4 to 10%. Additionally, using multiple Vierendeel panels and the X-diagonals can increase the response modification factor by 1.06 and 1.74 times, respectively. Article Highlights Different truss arrangements do not have a significant effect on the coefficient of behavior. The addition of several Vierendeel panels does not have much effect on the behavior of these structures. Adding cross diameters almost doubles the coefficient of behavior and significantly improves the performance of the structure.

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Section: The Special Truss Moment Frame (Stmf)mentioning

confidence: 99%

Numerical study of the effect of geometric arrangement of the truss on the response modification factor of the special truss moment frame (STMF)

2021

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“…The SFRS of the building, as shown in Figure 10b, is an innovative structural system named fused truss moment frame (FTMF). This system was originally proposed by Wongpakdee et al (2014) and Yang et al (2014). The FTMF uses buckling restrained braces (BRBs) at the end truss panels to dissipate earthquake energy and form the primary structural fuse.…”

Section: Application Of Eedpmentioning

confidence: 99%

Equivalent Energy Design Procedure for Earthquake Resilient Fused Structures

Yang

Tung

2018

Earthquake Spectra

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It has been observed in recent earthquakes worldwide that even countries with modern building codes suffer significant structural damages because earthquake energy is dissipated through inelastic deformation of structural components. Unrecoverable damages and prolonged downtime can be minimized using earthquake resilient structures, where earthquake energy is dissipated using specially designed and detailed structural fuses. Fuses are decoupled from gravity system and can be replaced efficiently. Earthquake-resilient fused structures cannot be routinely designed unless there is a simple design procedure. This paper presents an equivalent energy design procedure (EEDP) for the seismic design of fused structures. EEDP allows designers to select different performance objectives at different earthquake shaking intensities. EEDP also allows engineers to select structural members to achieve the desired structural period, strength, and deformation with simple hand calculations without iterations. This practical and efficient design procedure is illustrated via an earthquake resilient fused truss moment frame (FTMF). The nonlinear dynamic analysis result shows that the prototype FTMF can have controlled failure mechanism and drifts selected by the engineer at multiple earthquake shaking intensities.

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“…e bracing members are generally installed in the perimeter moment-resisting frame, which results in a skeleton in the building, and provide extra rigidity for the frame structure so that it could e ectively resist the lateral loads caused by typhoons and earthquakes [10,[22][23][24][25][26].…”

Section: Design Philosophy and Experimental Modelsmentioning

confidence: 99%

“…Although the conventional bracing damper system has an excellent ability not only to absorb the external impact but also to diminish the structural vibration, it has the disadvantage of requiring additional maintenance due to the residual deformation caused by the lack of recentering capability [10][11][12][13][14]. Accordingly, this paper proposes new bracing damper systems that can e ectively reduce the residual displacement by installing seismic retro t devices to enhance the recentering capability of the bracing member.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation on the Behavior of Bracing Damper Systems by Utilizing Metallic Yielding and Recentering Material Devices

Noh

Ahn

2018

Advances in Materials Science and Engineering

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With the aim of effectively reducing the structural damage caused by earthquake events, bracing systems equipped with retrofitting damper devices, which take advantage of the energy dissipation and impact absorption, have been widely used in practical construction sites. ese bracing dampers, however, have been recognized as expendable supplies for easily replacing the damaged ones after a strong earthquake because they are commonly designed to undergo concentrated force and deformation for the purpose of protecting the main structural members such as the columns and beams. In this paper, the use of new superelastic shape memory alloy (SMA) dampers that can partially recover their original configuration is proposed to decrease the repair cost. In addition, the conventional steel dampers used for improving the energy dissipation arising due to metallic yielding are additionally integrated into the bracing member. e behaviors of such bracing systems with the damper devices were reproduced in experimental tests with the cyclic loading history, and then their strength capacity and recentering capability were estimated based on the experiment results. Finally, additional experimental tests were performed by imposing cyclic loading histories with different loading speeds on the superelastic SMA and steel plate damper specimens.

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Performance-Based Design and Optimization of Buckling Restrained Knee Braced Truss Moment Frame

Cited by 36 publications

References 8 publications

Numerical study of the effect of geometric arrangement of the truss on the response modification factor of the special truss moment frame (STMF)

Numerical study of the effect of geometric arrangement of the truss on the response modification factor of the special truss moment frame (STMF)

Equivalent Energy Design Procedure for Earthquake Resilient Fused Structures

Experimental Investigation on the Behavior of Bracing Damper Systems by Utilizing Metallic Yielding and Recentering Material Devices

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