Results 171 to 180 of about 237 (210)

Estimation of hysteretic energy demand using concepts of modal pushover analysis

Earthquake Engineering & Structural Dynamics, 2008
AbstractHysteretic energy dissipation in a structure during an earthquake is the key factor, besides maximum displacement, related to the amount of damage in it. This energy demand can be accurately computed only through a nonlinear time‐history analysis of the structure subjected to a specific earthquake ground acceleration.
PRASANTH, T, GHOSH, S, COLLINS, KR
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Studies and Improvements on Modal Pushover Analysis and Application on Bridge

Advanced Materials Research, 2010
Because the traditional pushover analysis can not take the contributions of higher modes into account, To overcome this limitation, a modal pushover analysis procedure (MPA) is proposed by some researchers, which can involve the combination of multi-mode contributions to response.
Ying Na Mu, Lei Shi, Zhe Zhang
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Modal pushover analysis for degrading structures

While Non-Linear Response History Analysis (NL-RHA) is the most rigorous procedure to estimate seismic demands for buildings, it is not quite practical for use by regular engineers. Thus, the static pushover analysis, a simple and approximate method, has been improved, and a Modal Pushover Analysis (MPA) has recently been proposed with an assumption ...
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Proposal of a modal pushover based incremental analysis

2015
Existing reinforced concrete frame buildings designed for vertical load only could suffer severe damage during earthquakes. In recent years, many research activities have been paid to develop reliable and practical analysis procedure to identify the safety level of existing structures.
BERGAMI, ALESSANDRO VITTORIO, NUTI, CAMILLO   +1 more
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THE INCREMENTAL MODAL PUSHOVER ANALYSIS (IMPA): PROPOSAL AND APPLICATION

2017
Existing reinforced concrete frame buildings designed for vertical loads only could suffer severe damage during earthquakes. In recent years, many research activities were undertaken to develop a reliable and practical analysis procedure to identify the safety level of existing structures.
BERGAMI, ALESSANDRO VITTORIO, Forte, A., LAVORATO, DAVIDE, NUTI, CAMILLO   +3 more
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Modal pushover analysis for seismic evaluation of bridges

Although nonlinear response history analysis (NL-RHA) is considered to be the most rigorous method to determine responses of a structure due to a strong earthquake excitation, it can only be undertaken by highly qualified engineers and may be too time-consuming for typical structural design and evaluation projects.
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Effectiveness of 3D multi-modal pushover for plan-asymmetric RC frames

2010
This paper illustrates an investigation on the effectiveness of the pushover procedures to evaluate the seismic response of three-dimensional, plan-asymmetric structures. In particular, both single-mode-based and multimodal-based horizontal force distributions were considered.
DIOTALLEVI, PIER PAOLO, LANDI, LUCA, C. Gianni   +2 more
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Combination coefficients for modal pushover analysis

2007
Conventional non-linear static analysis estimates the response peak value by evaluating the pushover curve adopting a distribution of invariant forces proportional to the fundamental vibration mode. In order to include the effect of higher modes, multi-modal push-over analysis has been proposed in literature.
Cacciola, P., COLAJANNI, Piero, Potenzone, B.   +2 more
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Non linear and linearized combination coefficients for modal pushover analysis

2017
current design practice and seismic codes tend to assess seismic demand of buildings by Non linear Static Analysis (NSA), based on the evaluation of the pushover curve. Earlier non-linear static analysis procedure estimate the response peak value by evaluating the push-over curve adopting a distribution of invariant forces proportional to the ...
Colajanni Piero, Cacciola Pierfrancesco, Potenzone Barbara, Spinella Nino, Testa Gabriele   +4 more
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Modal Pushover Analysis for Seismic Performance Assessment of Underground Structures

Journal of Earthquake Engineering, 2022
Zhidong Gao, Mi Zhao, Xiuli Du
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