A simplified design procedure for seismic upgrade of frame structures equipped with hysteretic dampers

2022 ◽  
Vol 251 ◽  
pp. 113504
Author(s):  
Eleonora Bruschi ◽  
Virginio Quaglini ◽  
Paolo M. Calvi
Author(s):  
Michele Palermo ◽  
Vittoria Laghi ◽  
Stefano Silvestri ◽  
Giada Gasparini ◽  
Tomaso Trombetti

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.


1997 ◽  
Author(s):  
Tadamichi Yamashita ◽  
Yoichi Mukai ◽  
Eizaburo Tachibana ◽  
Masami Hanai

2017 ◽  
Vol 23 (9) ◽  
pp. 1584-1603 ◽  
Author(s):  
Enrique Hernández-Montes ◽  
Mark A. Aschheim

2015 ◽  
Vol 120 ◽  
pp. 262-274 ◽  
Author(s):  
Minho Kwon ◽  
Jinsup Kim ◽  
Wooyoung Jung ◽  
Hyunsu Seo

Author(s):  
Kensuke Shiomi

Abstract For steel frame infrastructure facilities like thermal power plants, storage facilities or port facilities, the more advanced seismic performance is needed which not only prevent major damages against assumed design ground motions but also result in the “desirable failure mode” that concerns the recovery works or prevent from resulting in catastrophic failure mode, even under severe ground motions beyond design assumptions in which occurrence of some damages in structures are inevitable. “Seismic structures which can control the locations of failure of structural members inside structures” is one of the examples of this seismic performance. By adding this performance to steel frame structures at the stage of seismic design, the high resilience structures which concern recovery works after earthquakes can be realized. In this research, a basic study on the seismic performance which controls the locations of fractures of steel frame members by adjusting the cross sections of each structural member was carried out. The analytical studies about the design procedure to realize this seismic performance were conducted. Then, by conducting the shaking table tests for simple steel frame structures and confirming the location of fractures under dynamic loads, the possibility of this seismic performance was discussed experimentally.


2017 ◽  
Vol 199 ◽  
pp. 1755-1760 ◽  
Author(s):  
Michele Palermo ◽  
Stefano Silvestri ◽  
Giada Gasparini ◽  
Antoine Dib ◽  
Tomaso Trombetti

2020 ◽  
Vol 72 (08) ◽  
pp. 655-671

An original procedure for static design of movable in-plane frame structures is presented in the paper. The presented design procedure was derived using the modified traditional Cross procedure (TCP). The introduction of the TCP modification has resulted in significant improvement of the design algorithm of movable frame structures as compared to TCP, especially as to elimination of the need to conduct greater number of individual iteration procedures, and to solve linear algebraic equation systems.


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