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Building Models for City-Scale Nonlinear Time-History Analyses
2021This chapter proposes nonlinear multiple degree-of-freedom (MDOF) models for city-scale nonlinear time-history analyses in an attempt to predict seismic damage to buildings in large urban areas. The computational models and the corresponding parameter determination methods are developed for multi-story masonry buildings, reinforced concrete and steel ...
Xinzheng Lu, Hong Guan
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Selection of ground motion time histories for the nonlinear analysis of earth dams
2015ABSTRACT The selection of natural accelerograms for use in nonlinear analyses of earth dams is still a challenging issue. Customary approaches make essentially use of factors such as earthquake magnitude, distance and site class to obtain spectrum-compatible records with a target spectrum.
LANZO, Giuseppe +2 more
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Controls on Material and Mesh for Structural Nonlinear Time-History Analysis
Applied Mechanics and Materials, 2014<strong> </strong>In order to improve the solution of nonlinear time-history analysis for high-rise buildings, the concrete constitutive relation of Chinese code has been modified by using Najar damage theory, and based on the limitation of stable time increment in explicit dynamic analysis, a simplified Rayleigh damping form with tiny ...
Xiao Ming Chen +3 more
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NONLINEAR TIME HISTORY ANALYSIS OF A REINFORCED CONCRETE BRIDGE
2021Earthquakes are one of the greatest natural hazards, which are subject of human research. Bulgaria is a region with medium seismicity and possible seismic impact can lead to damage and destruction both in the building stock and in logistics facilities such as bridges, which would lead to large human and economic losses.
Iliev, Alexander +2 more
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The Seismic Reliability of Offshore Structures Based on Nonlinear Time History Analyses
AIP Conference Proceedings, 2008Regarding the past earthquakes damages to offshore structures, as vital structures in the oil and gas industries, it is important that their seismic design is performed by very high reliability. Accepting the Nonlinear Time History Analyses (NLTHA) as the most reliable seismic analysis method, in this paper an offshore platform of jacket type with the ...
Mahmood Hosseini +5 more
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Nonlinear time history analysis of a super‐tall building with setbacks in elevation
The Structural Design of Tall and Special Buildings, 2011SUMMARYStanding 260 m above the ground, the super‐tall building employs steel reinforced concrete frame and reinforced concrete core wall system strengthened by a belt truss story to resist lateral and vertical loads. It has two setbacks in elevation. One is structurally designed by direct termination of vertical members, and the other is realized by ...
Xilin Lu, Ningfen Su, Ying Zhou
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Dual versus amplitude scaling in nonlinear time-history analysis.
2014In order to estimate the inelastic seismic response of structures modern design codes such as the ASCE7 or Eurocode 8 allow for the use of a family of scaled natural accelerograms in conjunction with nonlinear time-history analysis. In view of this, a number of selection and scaling criteria have been proposed over the years.
Juan-Enrique MARTINEZ-RUEDA +1 more
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Inherent Damping in Nonlinear Time-History Analyses: A Recommended Modelling Approach
2017In a nonlinear dynamic analysis, the most popular way of representing the inherent damping exhibited by the structure is by adopting the classical Rayleigh damping model. Although a large number of studies have identified issues with this model, it remains the most popular choice in the currently available non-linear time-history analysis software.
Athol J. Carr, Arun M. Puthanpurayil
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Visualization and High-Performance Computing for City-Scale Nonlinear Time-History Analyses
2021To facilitate interpretation of the urban building seismic simulation results, realistic visualizations are highly critical particularly for nonprofessional stakeholders and users. With this in mind, 2.5D, 3D, and photo-realistic visualization models are proposed in this chapter to enhance visualization capabilities of urban building seismic simulation
Xinzheng Lu, Hong Guan
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Nonlinear Time History Analysis and Optimal Isolator Design for Earthquake Resistant Structures
11th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference, 2006Seismic isolation and energy dissipation systems are innovative strategies for seismic design, and upgrade or retrofit of bridges. In a retrofit design, base isolation devices can be easily incorporated into existing bridges to replace conventional bearings and to improve the overall structural performance. In this paper, an optimal cost base isolation
Hongbing Fang, Qian Wang, Xiao-Kang Zou
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