scholarly journals Performance-based seismic design of multistory frame structures equipped with crescent-shaped brace

2017 ◽  
Vol 25 (2) ◽  
pp. e2079 ◽  
Author(s):  
Omar Kammouh ◽  
Stefano Silvestri ◽  
Michele Palermo ◽  
Gian Paolo Cimellaro
Keyword(s):  
Seismic Design ◽  
Frame Structures ◽  
Performance Based Seismic Design ◽  
Multistory Frame

SEISMIC DESIGN OF FRAME STRUCTURES EQUIPPED WITH INNOVATIVE HYSTERETIC DISSIPATIVE DEVICES

2019 ◽  
Vol 6 (1) ◽  
Author(s):  
Michele Palermo ◽  
Vittoria Laghi ◽  
Stefano Silvestri ◽  
Giada Gasparini ◽  
Tomaso Trombetti
Keyword(s):  
Seismic Design ◽  
Design Procedure ◽  
Structural Instability ◽  
Hysteretic Behavior ◽  
Frame Structure ◽  
Frame Structures ◽  
Order Effects ◽  
Final Design ◽  
Structural Engineer ◽  
Performance Based Seismic Design

In the present work, a Performance-Based Seismic Design procedure applied to multi-storey frame structures with innovative hysteretic diagonal steel devices (called Crescent Shaped Braces or CSB) is introduced. CSBs are steel elements of peculiar geometrical shapes that can be adopted in frame buildings as enhanced hysteretic diagonal braces. Based on their "boomerang" configuration and placement inside the frame structure, they are characterized by a lateral stiffness uncoupled from the yield strength and, if properly inserted, by an overall symmetric hysteretic behavior with hardening response at large drifts, thus preventing from global structural instability due to second-order effects. The procedure here presented is intended to guide the structural engineer through all the steps of the design process, from the selection of the performance objectives to the preliminary sizing of the CSB devices, up to the final design configuration. The steps are described in detail through the development of an applicative example.

scholarly journals Performance-Based Seismic Design of Steel Frames Utilizing Colliding Bodies Algorithm

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
H. Veladi
Keyword(s):  
Seismic Design ◽  
Optimization Algorithm ◽  
Pushover Analysis ◽  
Steel Frames ◽  
Design Methods ◽  
Frame Structures ◽  
Analysis Method ◽  
Numerical Examples ◽  
Colliding Bodies Optimization ◽  
Performance Based Seismic Design

A pushover analysis method based on semirigid connection concept is developed and the colliding bodies optimization algorithm is employed to find optimum seismic design of frame structures. Two numerical examples from the literature are studied. The results of the new algorithm are compared to the conventional design methods to show the power or weakness of the algorithm.

Nonstructural Elements in Performance-Based Seismic Design of Wood Frame Structures

2007 ◽  
Vol 133 (3) ◽  
pp. 432-439 ◽  
Author(s):  
John W. van de Lindt ◽  
Hongyan Liu
Keyword(s):  
Seismic Design ◽  
Frame Structures ◽  
Performance Based Seismic Design ◽  
Wood Frame

The Impact of Infilled Wall on Seismic Performance of Frame Structure

2013 ◽  
Vol 353-356 ◽  
pp. 2127-2130
Author(s):  
Xi Ping Liu
Keyword(s):  
Seismic Performance ◽  
Seismic Design ◽  
Quantitative Description ◽  
Frame Structure ◽  
Frame Structures ◽  
Current Phase ◽  
Seismic Design Code ◽  
Performance Based Seismic Design ◽  
The One ◽  
The Impact

In accordance with damages of infilled wall frame structures in Wenchuan earthquake, the current 2010 version of "Seismic Design Code of Building" is attached herewith increasing significance to infilled wall, which switches "consider the impact of infilled wall on seismic performance of frame structure and avoid main structure destruction caused by setting infilled wall unreasonably " from a general provision into a mandatory provision, however, a specific quantitative description on the impact of infilled wall on seismic performance of frame structure is still absent. The impact of infilled wall on seismic performance of frame structure is analyzed in the paper, and two suggestions pertain to design and research of infilled wall is proposed under current phase: on the one hand, "conceptual design" should be kept on highlighting in the seismic design of infilled wall frame structures; on the other hand, based on the concept of "performance-based seismic design", the idea that infilled wall should be treated distinctively is put forward.

Inter-Story Capacity Spectrum for the Performance Based Seismic Design of Vertically Irregular RC Frame Structures I: Method

2012 ◽  
Vol 517 ◽  
pp. 745-748
Author(s):  
Jin Jie Men ◽  
Qing Xuan Shi ◽  
Qi Zhou
Keyword(s):  
Seismic Design ◽  
Demand Curve ◽  
Frame Structure ◽  
Frame Structures ◽  
Dynamical Characteristic ◽  
Displacement Curve ◽  
Inelastic Behavior ◽  
Capacity Spectrum ◽  
Demand Curves ◽  
Performance Based Seismic Design

Considering the dynamical characteristic of structure under different earthquake hazard level, inelastic demand curves, namely, inter-story shear versus inter-story displacement curve are established by using mode spectrum method. Based on the relation of structure performance object and displacement ductibility, the relation of structure performance object and inter-story demand curve is established. And the inter-story demand curves take into account the inelastic behavior of structure under earthquake action adequately. Then considering the seismic respond characteristic and the capacity curve of the frame structure a new method named inter-story capacity spectrum (ISCS) is put forward for the performance based seismic design of vertically irregular frame structures. Examples are presented to demonstrate the applicability and utility of the proposed method. In part , the procedure to establish the ISCS method is mainly explained. And the examples will be introduced in part .

Studies on Performance-Based Seismic Design for RC Frame Structures with Energy Dissipation

2012 ◽  
Vol 204-208 ◽  
pp. 2662-2666
Author(s):  
Jie Ying Sui ◽  
Di Tao Niu ◽  
Chen Ming Xu
Keyword(s):  
Energy Dissipation ◽  
Seismic Response ◽  
Seismic Design ◽  
Frame Structures ◽  
Original Structure ◽  
Rc Frame ◽  
Major Earthquake ◽  
Moderate Earthquake ◽  
Performance Based Seismic Design ◽  
Rc Frame Structures

Energy dissipation reduction design can achieve the performance-based seismic design. By contrasting the results of the frame with the SMA dampers and the original structure, the results prove that the SMA damper can reduce the seismic response effectively and achieve the important performance objective “no damage under moderate earthquake and maintainable under major earthquake”.

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