Integrated Reliability-Based Seismic Drift Design Optimization of Base-Isolated Concrete Buildings

Zou, Xiaokang; Wang, Qian; Li, Gang; Chan, Chun Man

doi:10.1061/(asce)st.1943-541x.0000216

Cited by 54 publications

(27 citation statements)

References 41 publications

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“…Zou et al [10] made more research on optimisation of seismic retrofit design of RC structures wherein the retrofit strategy involved confinement of the columns with fibre-reinforced polymer jackets. Zou [11] further proposed an efficient optimisation technique for base-isolated concrete buildings under spectrum loading. Zou et al [12] developed the integrated reliability-based seismic drift design optimisation of base-isolated concrete buildings under uncertainties of earthquake loadings and responses.…”

Section: Introductionmentioning

confidence: 99%

Cost design optimisation of concrete transfer beam structures

et al. 2014

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This paper presents an effective optimisation technique for the deformation performance design and strength design of concrete transfer beam structures under gravity and horizontal loads. This technique has the capability to simultaneously consider the serviceability vertical deformation performance requirements and the ultimate strength reinforcement design in optimisation. This technique can also automatically resize and reinforce elements to produce the minimum of the total cost design, while satisfying specified design performance criteria. It can help structural engineers to distribute materials efficiently throughout the structure to improve current traditional trial-and-error design.

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Section: Introductionmentioning

confidence: 99%

Cost design optimisation of concrete transfer beam structures

et al. 2014

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“…Nowadays, it is widely recognized that the lateral displacement or interstory drift is a proper measure index for quantifying the structural and nonstructural damage of multi-story building under various levels of earthquakes. Although the interstory drifts can reflect the earthquake-resistant capacity for the multi-story building, interstory drift performance oriented structural seismic optimum design, particularly inelastic drift performance oriented, is still a challenging and difficult task in building seismic design (Park and Kwon 2003;Chan and Zou 2004;Zou et al 2007Zou et al , 2010.…”

Section: Introductionmentioning

confidence: 99%

Modified-modal-pushover-based seismic optimum design for steel structures considering life-cycle cost

Jiao²,

Yang³

2011

Struct Multidisc Optim

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A modified-modal-pushover-based optimization technique is presented to design steel moment resisting frame buildings for minimizing the life-cycle cost based on the framework of performance based earthquake engineering. Modified modal pushover analysis (MMPA) procedure capturing the higher mode effect well is utilized to analyze the inelastic seismic demands of the structures subjected to the considered design earthquakes in terms of the Chinese seismic code for buildings, especially for the medium-to high-rise buildings. Furthermore, the life-cycle cost is formulated as the summation of the initial material cost and the future expected damage loss, which can be stated as a function of seismic performance levels and their corresponding failure probability by means of a statistical model. Meanwhile, the damage loss is explicitly and continuously expressed by the defined interstory drift index using the fuzzy-decision theory. Moreover, the powerful adaptive simulated annealing algorithm is applied to solve the discrete optimization problem due to the discreteness of standard steel sections. Finally, a 9-story planar steel frame is provided to illustrate the effectiveness of the proposed optimization design technique, which achieves not only more cost-effective design but greatly improves the robustness of the optimum design as well.

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“…Following common practices, only the horizontal component of the ground motion is considered. [17,20,22,[40][41][42][43] Two approaches are available for performing time-history dynamic analysis of structures subjected to random earthquakes: (a) dynamic-response history analysis using a set of recorded ground-motion time histories and (b) stochastic dynamic analysis employing generated synthetic stochastic ground motion.…”

Section: Input Ground Motionmentioning

confidence: 99%

“…This amounts to a reliability-based design optimization (RBDO) problem. In 2010, Zou et al [20] presented an effective numerical reliability-based optimization technique for designing base-isolated concrete building structures under spectrum loading. Huang and Ren presented a dynamic reliability-based optimization technique for the seismic design of base-isolated structures.…”

Section: Introductionmentioning

confidence: 99%

Novel procedure for reliability-based cost optimization of seismically isolated structures for the protection of critical equipment: A case study using single curved surface sliders

Moeindarbari

Taghikhany

2017

Struct Control Health Monit

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SummaryThe optimized reliability-based design of seismic isolated structures requires a consideration of the failure probability of the system, in addition to the optimization objectives. The stochastic nature of a given system (e.g., the probable input ground motion) must therefore be properly included in the analysis model. To address this challenge, a novel procedure is developed and examined on a 3-story isolated concrete building model, to minimize the total construction cost of the system with regards to protecting sensitive equipment located within the structure.In this procedure, the structure performance and reliability were first evaluated using time-consuming Monte Carlo simulations. We then employed artificial neural networks as a response surface to facilitate the prediction of the failure probability for the supposed structure. To simulate seismic excitations, we generated artificial ground motion combining random high-frequency and long-period components.Also, a newly developed sensitivity analysis method was used to identify the critical uncertain parameters of the system. Finally, by using a simulated annealing algorithm, we determined the optimal design variables of the structure and isolation system for a range of desired probabilities of failure.The optimal results indicate that, for different target failure probability ranges, some design variables are more significant than others. KEYWORDS base isolation, critical equipment protection, neural network, reliability based cost optimization, sensitivity analysis, spectral non-stationarity

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Integrated Reliability-Based Seismic Drift Design Optimization of Base-Isolated Concrete Buildings

Cited by 54 publications

References 41 publications

Cost design optimisation of concrete transfer beam structures

Cost design optimisation of concrete transfer beam structures

Modified-modal-pushover-based seismic optimum design for steel structures considering life-cycle cost

Novel procedure for reliability-based cost optimization of seismically isolated structures for the protection of critical equipment: A case study using single curved surface sliders

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