Cloud Capacity Spectrum Method: Accounting for record-to-record variability in fragility analysis using nonlinear static procedures

2021 ◽  
Vol 150 ◽  
pp. 106829
Author(s):  
Andrea Nettis ◽  
Roberto Gentile ◽  
Domenico Raffaele ◽  
Giuseppina Uva ◽  
Carmine Galasso
Keyword(s):  
Fragility Analysis ◽  
Capacity Spectrum Method ◽  
Spectrum Method ◽  
Capacity Spectrum ◽  
Nonlinear Static

Evaluation of Nonlinear Static Procedures in the Assessment of Building Frames

2013 ◽  
Vol 29 (4) ◽  
pp. 1459-1476 ◽  
Author(s):  
Rui Pinho ◽  
Mário Marques ◽  
Ricardo Monteiro ◽  
Chiara Casarotti ◽  
Raimundo Delgado
Keyword(s):  
Dynamic Analysis ◽  
Adaptive Capacity ◽  
Nonlinear Dynamic ◽  
Pushover Analysis ◽  
Nonlinear Dynamic Analysis ◽  
Capacity Spectrum Method ◽  
Modal Pushover Analysis ◽  
Spectrum Method ◽  
Capacity Spectrum ◽  
Nonlinear Static

In recent years a number of nonlinear static procedures (NSPs) have been developed and proposed. Such pushover-based seismic assessment procedures are relatively straightforward to employ and are generally chosen over nonlinear dynamic analysis, especially within the realm of design office application. Parametric comparisons between the different NSPs available, however, are still somewhat sparse. In this work, five commonly employed NSPs (the N2 method, capacity spectrum method, modal pushover analysis, adaptive modal combination procedure, and the adaptive capacity spectrum method) are applied in the assessment of 16 frames subjected to a large number of input motions with a view to assess the accuracy level of such approaches through comparison with nonlinear dynamic analysis results. The evaluation shows that all the NSPs are able to accurately predict displacements and to produce reasonable estimates for other response parameters, with limited dispersion. Even though no single NSP tested led to consistently superior results, modal pushover analysis and the adaptive capacity spectrum method seemed to perform slightly better.

Applications of Capacity Spectrum Method for Buildings With Metallic Yielding Dampers

2005 ◽  
Author(s):  
Bo-Jen Chen ◽  
C. S. Tsai ◽  
L. L. Chung ◽  
Tsu-Cheng Chiang
Keyword(s):  
Static Analysis ◽  
Nonlinear Dynamic Analysis ◽  
Iteration Procedure ◽  
Nonlinear Static Analysis ◽  
Severe Damage ◽  
Capacity Spectrum Method ◽  
Spectrum Method ◽  
Capacity Spectrum ◽  
Earthquake Resistant ◽  
Nonlinear Static

The 921 Chi-Chi Earthquake was one of the most destructive earthquakes in Taiwan in the twentieth century. The earthquake caused severe damage or collapse to the residential and public structures. It is a sensible choice to utilize the metallic yielding dampers for retrofitting damaged structures and to enhance earthquake-resistant capacity of new structures. In this paper, in order to facilitate the designs of the metallic yielding dampers, an improved nonlinear static analysis iteration procedure based on the capacity spectrum method for buildings with metallic yielding dampers has been proposed. The numerical results of the buildings with the metallic yielding dampers through the nonlinear static analysis iteration procedure and the nonlinear dynamic analysis have been obtained, compared and verified in this study. Moreover, it is also illustrated that the proposed nonlinear static analysis iteration procedure based on the capacity spectrum method for structures with metallic yielding dampers can fairly predict the seismic responses of the buildings with metallic yielding dampers during the earthquakes.

scholarly journals DESING SPECTRUMS FOR THE CENTRAL NORTH OF QUI-TO AND SEISMIC ANALYSIS OF STEEL STRUCTURES USING THE CAPACITY SPECTRUM METHOD.

2014 ◽  
Vol 12 (3) ◽  
Author(s):  
Roberto Rodrigo Aguiar
Keyword(s):  
High School ◽  
Steel Structures ◽  
Capacity Spectrum Method ◽  
North Central ◽  
Seismic Microzoning ◽  
Spectrum Method ◽  
Performance Point ◽  
Capacity Spectrum ◽  
Elastic Response Spectra ◽  
The City

The city of Quito lies on geological faults that have no surface outcrop but are moving with a speed of 2-4 mm per year. The last strong earthquake associated with these thrust faults, was rec-orded in 1587 and had a magnitude of 6.4; so it has been more than 400 years, there is a large amount of stored energy, and the probability of an earthquake occurring is very high. Therefore, this article presents, firstly, the periods of recurrence of these faults; then a microzoning of the north central part of the city and the elastic response spectra for 5% damped associated to the Llumbisi- La Bota segment fault, ILB. And subsequently, an analysis of nine steel structures from one to nine storeys assuming that they are situated in the following three areas of north central Quito: the old Quito Tenis; La Gasca and Benalcazar High School. Using the Capacity Spectrum Method MEC, the seismic response is found with the presence of three spectrums as prescribed in the Ecuadorian Construction Regula-tions NEC-11; the recommendation in the study of the seismic microzoning of Quito ERN-12 and those found in the seismic microzoning associated with the fault ILB. Three types of responses are indicated for each location, the structures situated in the old Quito Tenis present a performance point found using the Capacity Spectrum Method MEC; for those in La Gasca, a maximum lateral displacement is indicated in each storey; and the structures situated in the Benalcazar High School present maximum interstorey drifts. It should be highlighted that the lateral displacements and interstorey drifts are reaching the end of their performance, thus the conclusions to be found in this study about which spectrum the maximum response has could be inferred from any of the three structural parameters.

A mathematical basis for the convergence of the capacity spectrum method

2004 ◽  
Vol 33 (9) ◽  
pp. 1059-1066 ◽  
Author(s):  
Yu-Yuan Lin ◽  
Tsai-Fu Chuang ◽  
Kuo-Chung Chang
Keyword(s):  
Capacity Spectrum Method ◽  
Mathematical Basis ◽  
Spectrum Method ◽  
Capacity Spectrum

Development and application of an advanced capacity spectrum method

2008 ◽  
Vol 30 (11) ◽  
pp. 3345-3354 ◽  
Author(s):  
Bora Gencturk ◽  
Amr S. Elnashai
Keyword(s):  
Capacity Spectrum Method ◽  
Spectrum Method ◽  
Capacity Spectrum
Sign in / Sign up

Export Citation Format

Share Document