Seismic Retrofit of the Marin County Hall of Justice Using Steel Buckling-Restrained Braced Frames

2004 ◽  
Author(s):  
Alison Shaw ◽  
Kristen Bouma
Keyword(s):  
Seismic Retrofit ◽  
Braced Frames ◽  
Marin County ◽  
Buckling Restrained Braced Frames

Drift-based seismic design procedure for Buckling Restrained Braced Frames

Structures ◽  
2021 ◽  
Vol 30 ◽  
pp. 62-74
Author(s):  
Seyed Amin Mousavi ◽  
Seyed Mehdi Zahrai ◽  
Ali Akhlagh Pasand
Keyword(s):  
Seismic Design ◽  
Design Procedure ◽  
Braced Frames ◽  
Buckling Restrained Braced Frames

Bidirectional loading performance of gusset plates in buckling restrained braced frames

2021 ◽  
Vol 242 ◽  
pp. 112521
Author(s):  
Saul Y. Vazquez-Colunga ◽  
Chin-Long Lee ◽  
Gregory A. MacRae
Keyword(s):  
Braced Frames ◽  
Gusset Plates ◽  
Buckling Restrained Braced Frames

Effects of Out-of-Plane Displacements on Load Capacity of Gusset Plates in Buckling Restrained Braced Frames

2018 ◽  
Vol 763 ◽  
pp. 892-899 ◽  
Author(s):  
Saul Y. Vazquez-Colunga ◽  
Chin Long Lee ◽  
Gregory A. MacRae
Keyword(s):  
Finite Element ◽  
Finite Element Methods ◽  
Load Capacity ◽  
Numerical Results ◽  
Numerical Analyses ◽  
Braced Frames ◽  
Gusset Plates ◽  
Out Of Plane ◽  
Buckling Restrained Braced Frames ◽  
Monotonic Load

This study sets out to investigate the effect of out-of-plane (OOP) displacements on the monotonic load capacity of gusset plates (GPs) via numerical analyses using finite element methods. Two models were used: a) models with in-plane (INP) actions only; and b) models with both INP and OOP actions. The numerical results show that the load capacity of GPs is reduced with the presence of OOP displacements. For an OOP drift of 2.5%, the reduced capacity ranges from 95% to 80% with an average of 88% of the load capacity when only INP actions were applied.

Optimum design of buckling-restrained braced frames

Structures ◽  
2020 ◽  
Vol 25 ◽  
pp. 99-112
Author(s):  
Hanieh Abedini ◽  
Seyed Rohollah Hoseini Vaez ◽  
Alireza Zarrineghbal
Keyword(s):  
Optimum Design ◽  
Braced Frames ◽  
Buckling Restrained Braced Frames

Ductility Enhancement in Reinforced Concrete Structure with Buckling Restrained Braced Frames

2016 ◽  
Vol 847 ◽  
pp. 281-289
Author(s):  
Erkan Senol ◽  
Ismail Kose ◽  
Bilge Doran ◽  
Pelin Elif Mezrea ◽  
Bulent Akbas
Keyword(s):  
Reinforced Concrete ◽  
Pushover Analysis ◽  
Design Procedure ◽  
Braced Frames ◽  
Base Shear ◽  
Moment Frames ◽  
Concentrically Braced Frames ◽  
Capacity Curve ◽  
Concentrically Braced ◽  
Buckling Restrained Braced Frames

Adding braces to moment frames is considered to be quite an efficient technique for increasing the global stiffness and strength of the structure. It has not only been used in steel moment frames, but also in reinforced concrete (RC) moment frames in recent years. It certainly can increase the energy absorption capacity of structures and also decrease the demand imposed by seismic ground motions. Steel braces are anchored firmly to boundary beams and columns. They are modeled as truss elements and increase earthquake resistance of the building. Buckling restrained braced frames (BRBFs) in which members yield under both tension and compression without significant buckling have been used in recent years in order to ensure the desired seismic performance of special concentrically braced frames. BRBFs are similar to the special concentrically braced frames in that seismic accelerations are resisted by a building-frame members and diagonal braces whereas the design procedure is different. BRBs should be designed to permit ductile yielding both in compression and tension. In this paper, flat-slab RC building with two different configurations of buckling restraint braces (BRBs) is studied. The buildings have 4-storey with 5 bays in both X-and Y-directions and have been designed according to Turkish Specification of Reinforced Concrete Design (TS 500). In order to explore overall behavior up to failure and lateral load resisting capacities for these buildings, nonlinear static analyses have then been performed using SAP 2000-V14.1. Pushover analysis under constant gravity loads and monotonically increasing lateral forces during an earthquake until a target displacement is reached is generally carried out as an effective tool for performance based design. The major outcome of a pushover analysis is the capacity curve which shows the base shear vs. the roof displacement relationship and represents the overall performance of the building. The results of the analyses are presented in terms of capacity curve and energy dissipation.

Probabilistic seismic evaluation of buckling restrained braced frames using DCFD and PSDA methods

2016 ◽  
Vol 10 (1) ◽  
pp. 105-123
Author(s):  
Behrouz Asgarian ◽  
Edris Salehi Golsefidi ◽  
Hamed Rahman Shokrgozar
Keyword(s):  
Braced Frames ◽  
Seismic Evaluation ◽  
Buckling Restrained Braced Frames
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