A novel reliability technique for implementation of Performance-Based Seismic Design of structures

Gaxiola‐Camacho, J. Ramon; Azizsoltani, Hamoon; Villegas-Mercado, Francisco J.; Haldar, Achintya

doi:10.1016/j.engstruct.2017.03.076

Cited by 66 publications

(19 citation statements)

References 15 publications

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“…Castaldo and De Iuliis [4] using the finite element method studied the effect of deep excavation on the amount of seismic damage in a structure. Gaxiola-camacho et al [5] investigated the seismic performance in structures excited by dynamic loading in the time domain. Maleki and Mir Mohammad (1)…”

Section: Introductionmentioning

confidence: 99%

Seismic performance of deep excavation restrained by guardian truss structures system using quasi-static approach

Maleki

Nabizadeh

2021

SN Appl. Sci.

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The control of deformation and stability of the deep excavation walls under seismic and static loads is one of the most important issues in geotechnical engineering. Therefore, in the present study, using the finite element method and taking into account Hardening soil's behavioural model, the effect of different parameters affecting the performance of the deep excavation walls with the guardian truss structures using quasi-static analysis and its comparison with static analysis has been performed. According to the most important results, increasing in the geotechnical parameters of soil such as cohesion, friction angle and elastic modulus will reduce the maximum horizontal displacement in the vertical trench wall. Besides, the maximum settling in the adjacent ground and the maximum swelling in the bottom of the excavation will be reduced. In this way, the improvement in soil resistance parameters will increase the safety factor. Conversely, by increasing the horizontal distance between the trusses, the maximum horizontal displacement and the maximum settling in the adjacent ground and the maximum swelling in the bottom of the excavation will increase and the safety factor will be reduced. Also, the findings from this research show that by increasing the horizontal seismic acceleration coefficient (Kh) and as the construction stages progress, the maximum horizontal displacement of the wall, the maximum settling of the adjacent ground of the wall and the maximum swelling on the bottom of the trench increase and the safety factor will decrease. As well as, the results obtained from the quasi-static seismic analysis of the vertical trench restrained by the guardian truss structure such as the maximum horizontal displacement of the vertical trench wall and the maximum settling in the adjacent ground and the maximum swelling of the bottom of the excavation are much more than the static analysis.

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Section: Introductionmentioning

confidence: 99%

Seismic performance of deep excavation restrained by guardian truss structures system using quasi-static approach

Maleki

Nabizadeh

2021

SN Appl. Sci.

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“…In the past few decades, the reliability‐based design optimization (RBDO) method is a good skill to solve uncertainty problems in engineering and has been well applied in various fields 27–30 . However, the application of the RBDO method in packaging engineering to consider the uncertainties has not been studied so far.…”

Section: Introductionmentioning

confidence: 99%

An innovation active set strategy reliability optimization method for cushioning design based on dynamic stress–strain curve

Shi

2021

Packag Technol Sci

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The uncertainty of cushioning volume in the process of manufacturing is the main cause of products damaged during transport. Many methods have been presented in protecting the products from damage. However, the uncertainty factors are still difficult to overcome in practical engineering. In order to handle those issues, an innovation active set strategy (IASS) reliability method with probabilistic constraints is proposed. This proposed method is tested through a packaging uncertainty problem, and the results obtained are compared with the modified reliability index approach (MRIA) by evaluating the probability constraints to demonstrate the cost‐effectiveness and efficiency. The results obtained have been indicated that the IASS not only solves the uncertainty problems in packaging engineering but also an efficient and faster reliability analysis method in the reliability‐based design optimization (RBDO) process without sacrificing numerical accuracy and stability. Furthermore, the proposed IASS provides a new design method for cushioning packaging design based on the dynamic stress–strain curve of cushioning material with minimum materials cost. In addition, the application of the RBDO methods to handle the uncertainty problems in packaging engineering has not been studied so far.

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“…It is well-known that many uncertainties are involved in structural designs, especially in the case of seismic resistant designs (Beck et al, 1998; Charney, 2000; Frangopol, 1985; Gaxiola-Camacho et al, 2017; Lagaros et al, 2008; Zou et al, 2010). The structural responses under random excitations such as seismic loads cannot be precisely predicted; therefore, such design problems involve considerable uncertainties (Ghobarah et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

“…Performance-based seismic design, which can directly address the inelastic deformation induced in buildings by earthquakes, has become a standard for seismic design (Applied Technology Council (ATC), 1996; Chan and Zou, 2004; Fragiadakis et al, 2006; Gaxiola-Camacho et al, 2017; Lagaros et al, 2008; Zameeruddin and Sangle, 2016; Zou et al, 2007a). The pushover analysis method has been widely used in the performance-based design procedure to assess the nonlinear seismic performance of structures (Zou and Chan, 2005; Zou, 2012).…”

Section: Introductionmentioning

confidence: 99%

Reliability-based performance design optimization for seismic retrofit of reinforced concrete buildings with fiber-reinforced polymer composites

Zou

Wang

2017

Advances in Structural Engineering

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Fiber-reinforced polymer composites can be externally bonded to reinforced concrete members which provide an effective seismic retrofit strategy for reinforced concrete structures. For seismic retrofit of a complex building structure, due to the large number of structural members, an optimum design which ensures the use of the minimum amount of fiber-reinforced polymer to achieve a given level of seismic performance is highly desirable for economic reasons. In addition, such an optimum design approach is best built on a probabilistic basis so that various sources of uncertainties in the design process can be appropriately accounted for. This work therefore studies an efficient reliability-based optimization approach for the seismic retrofit design of reinforced concrete structures using fiber-reinforced polymer composites. The structural performance is assessed at the system level using nonlinear pushover analyses. In the proposed approach, the inelastic interstory drift ratios are modeled as indeterministic variables to consider the uncertainties of earthquake loading. By contrast, the thickness of the fiber-reinforced polymer jacket is considered as a deterministic design variable. The reliability-based design approach is formulated by minimizing fiber-reinforced polymer cost subject to prescribed structural reliability constraints. Using the results of nonlinear static pushover analyses and reliability analyses, the reliability index constraints are explicitly formulated with respect to the deterministic design variables based on the virtual work principle as well as Taylor series expansion. A numerical optimality criteria method is derived and programmed to solve this reliability-based nonlinear retrofit design optimization problem. A design example is included to illustrate the application of the new optimization approach.

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A novel reliability technique for implementation of Performance-Based Seismic Design of structures

Cited by 66 publications

References 15 publications

Seismic performance of deep excavation restrained by guardian truss structures system using quasi-static approach

Seismic performance of deep excavation restrained by guardian truss structures system using quasi-static approach

An innovation active set strategy reliability optimization method for cushioning design based on dynamic stress–strain curve

Reliability-based performance design optimization for seismic retrofit of reinforced concrete buildings with fiber-reinforced polymer composites

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