Results 171 to 180 of about 1,918 (225)

Comparative Study among Conventional and Adaptive Pushover Methods

TCLEE 2009, 2009
ABSTRACT Nonlinear Static Pushover, NSP, is approximately reliable solution for time consuming problem of estimating the capacity and deformations of structures subjected to earthquakes. Conceptually, NSP methods rely on pushing the structure with incremental static lateral loads by considering material inelasticity and geometric nonlinearity.
M. Seifi, J. Noorzaei, M. S. Jaafar, F. Hejazi   +3 more
openaire   +1 more source

Improved adaptive spectra-based pushover analysis for bridges

Proceedings of the Institution of Civil Engineers - Bridge Engineering, 2009
Traditional pushover analysis procedures are based on invariant force distributions, none of which account for the contributions of higher modes to the response. Although adaptive spectra-based pushover analysis describes the effect of higher modes and considers the dynamic properties of structures, it is conceptually complicated and computationally ...
S Qin, H Wang, C Liu, G Lin
openaire   +1 more source

ADVANTAGES AND LIMITATIONS OF ADAPTIVE AND NON-ADAPTIVE FORCE-BASED PUSHOVER PROCEDURES

Journal of Earthquake Engineering, 2004
The recent drive for use of performance-based methodologies in design and assessment of structures in seismic areas has significantly increased the demand for the development of reliable nonlinear inelastic static pushover analysis tools. As a result, the recent years have witnessed the introduction of the so-called adaptive pushover methods, which ...
ANTONIOU S., SILVA MOURA PINHO, RUI JORGE   +1 more
openaire   +2 more sources

An adaptive modal pushover procedure for asymmetric-plan buildings

Engineering Structures, 2012
An innovative single-run adaptive modal pushover procedure based on the modal story shear and torque has been developed for seismic assessment of asymmetric-plan buildings. In which the load pattern consists of the lateral forces and torques which are derived from the instantaneous combined modal story shear and torque profiles in each step.
Shakeri, Kazem, Tarbali, Karim, Mohebbi, Mohtasham   +2 more
openaire   +1 more source

EVALUATION OF CONVENTIONAL AND ADAPTIVE PUSHOVER ANALYSIS I: METHODOLOGY

Journal of Earthquake Engineering, 2005
In this paper, a methodology is suggested and tested for evaluating the relative performance of conventional and adaptive pushover methods for seismic response assessment. The basis of the evaluation procedure is a quantitative measure for the difference in response between these methods and inelastic dynamic analysis which is deemed to be the most ...
VASSILIS K. PAPANIKOLAOU, AMR S. ELNASHAI   +1 more
openaire   +1 more source

An Innovative Adaptive Pushover Procedure Based on Storey Shear

AIP Conference Proceedings, 2008
Since the conventional pushover analyses are unable to consider the effect of the higher modes and progressive variation in dynamic properties, recent years have witnessed the development of some advanced adaptive pushover methods. However in these methods, using the quadratic combination rules to combine the modal forces result in a positive value in ...
Kazem Shakeri, Mohsen A. Shayanfar, Adolfo Santini, Nicola Moraci   +3 more
openaire   +1 more source

Adaptive Load Patterns Versus Non-adaptive Load Patterns for Pushover Analysis of Building

Iranian Journal of Science and Technology, Transactions of Civil Engineering, 2018
Nowadays, concepts of the performance-based design engineering constitute the main basis for compilation of most of the seismic analysis and design codes. During the past 2 decades, broad attempts have been made by the researchers to narrow the gap between the nonlinear static procedures (NSP), and the nonlinear time-history analysis (NTHA) as the most
Mohsen Ali Shayanfar, Mehrollah Rakhshanimehr, Mansoor Ashoory   +2 more
openaire   +1 more source

Applying Adaptive Pushover Analysis to Estimate Incremental Dynamic Analysis Curve

Journal of Earthquake and Tsunami, 2020
To estimate seismic demand and capacity of structures, it has been suggested by researchers that Incremental Dynamic Analysis (IDA) is one of the most accurate methods. Although this method shows the most accurate response of the structure, some problems, such as difficulty in modeling, time-consuming analysis and selection of the earthquake records ...
Hamid Reza Ahmadi, Navideh Mahdavi, Mahmoud Bayat   +2 more
openaire   +1 more source

Application of normal flow algorithm in modal adaptive Pushover analysis

Journal of Constructional Steel Research, 2009
Abstract In this paper, a load increment method for Modal Adaptive Pushover Analysis (MAPA) for plane frame buildings is presented. In this method, the Newton–Raphson iterative algorithm is used along the flow path normal to the Davidenko curves with modified convergence rate.
R. Tabatabaei, H. Saffari, M.J. Fadaee
openaire   +1 more source

Adaptive Spectra-Based Pushover Procedure for Seismic Evaluation of Structures

Earthquake Spectra, 2000
The estimation of inelastic seismic demands using nonlinear static procedures, or pushover analyses, are inevitably going to be favored by practicing engineers over nonlinear time-history methods. While there has been some concern over the reliability of static procedures to predict inelastic seismic demands, improved procedures overcoming these ...
Gupta, Balram, Kunnath, Sashi K.
openaire   +2 more sources