Vulnerability and Risk Assessment of Single-Layer Reticulated Domes Subjected to Earthquakes

Zhi, Xu; Nie, Gui Bo; Fan, Feng; Shen, Shihui

doi:10.1061/(asce)st.1943-541x.0000589

Cited by 50 publications

(17 citation statements)

References 11 publications

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“…where e p 0 is the normal strain threshold beyond which damage occurs in the material, e p u is the ultimate normal strain of the material, e p m is the highest normal strain sustained by the member during the analysis, e p i is the peak normal strain sustained by the member during the ith half loading cycle, N is the total number of half loading cycles, b D is the weight coefficient of cumulative damage during the analysis and taken as 0.0268 based on past cyclic tests on steel tubes (Zhi et al, 2012), E is the initial elastic modulus without damage, E D is the damaged elastic modulus of material, s y is the initial yield stress without damage, s D y is the damaged yield stress of material, j 1 is the reduction factor of elastic modulus of material and taken as 0.404 based on past cyclic tests on steel tubes (Zhi et al, 2012), and j 2 is the reduction factor of yield stress of material and taken as 0.063 based on past cyclic tests on steel tubes (Zhi et al, 2012).…”

Section: The Materials Constitutive Model Considering Damagementioning

confidence: 99%

Progressive collapse analysis of long-span transmission tower-line system under multi-component seismic excitations

Tian

Pan

et al. 2017

Advances in Structural Engineering

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Section: The Materials Constitutive Model Considering Damagementioning

confidence: 99%

Progressive collapse analysis of long-span transmission tower-line system under multi-component seismic excitations

Tian

Pan

et al. 2017

Advances in Structural Engineering

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“…It is known that such structures are prone to instability under dynamic seismic loads. 1 The investigation of dynamic instability of these structures is therefore initiated. 2,3 Due to the complexities of geometric nonlinearity and plastic deformation in materials involved in dynamic stability analysis of domes, several practical criteria for identi¯cation of dynamic instability have been proposed.…”

Section: Introductionmentioning

confidence: 99%

“…8 Excessive development of plastic deformation may also be found extensively, which leads to the so-called \strength failure". 1 On the other hand, it has been recognized that the seismic ground motion applied to dome structures exhibits an obvious character of randomness. 9 Thus, a challenging issue arises naturally that how to evaluate the failure probability with consideration of dynamic instability and strength failure together.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Stability and Failure Probability Analysis of Dome Structures Under Stochastic Seismic Excitation

2014

Int. J. Str. Stab. Dyn.

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The intrinsic relationship between deterministic system and stochastic system is profoundly revealed by the probability density evolution method (PDEM) with introduction of physical law into the stochastic system. On this basis, stochastic dynamic stability analysis of single-layer dome structures under stochastic seismic excitation is firstly studied via incorporating an energetic physical criterion for identification of dynamic instability of dome structures into PDEM, which yields to sample stability (stable reliability). However, dynamic instability is not identical to structural failure definitely, where strength failure can be experienced not only in the stable structure but also when the structure is out of dynamic stability. It is practically feasible to decouple the stochastic dynamic response of dome structures to be a stable one and an unstable one according to the generalized density evolution equation (GDEE). Consequently, the global failure probability can be investigated separately based on the corresponding independent stochastic response. For unstable failure probability assessment, the failure probability is the unstable probability if the dome's failure is attributed to instability, whereas inverse absorbing is firstly implemented to get rid of the stochastic response before instability and a complementary process is filled in the safe domain immediately to finally assess the probability of strength failure after dynamic instability.

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“…Under the cyclic load, the damage variable D is related to the plastic strain of steel. It can be expressed as the following equation[25]:…”

mentioning

confidence: 99%

Failure mechanism of steel arch trusses: Shaking table testing and FEM analysis

Han

et al. 2015

Engineering Structures

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Vulnerability and Risk Assessment of Single-Layer Reticulated Domes Subjected to Earthquakes

Cited by 50 publications

References 11 publications

Progressive collapse analysis of long-span transmission tower-line system under multi-component seismic excitations

Progressive collapse analysis of long-span transmission tower-line system under multi-component seismic excitations

Dynamic Stability and Failure Probability Analysis of Dome Structures Under Stochastic Seismic Excitation

Failure mechanism of steel arch trusses: Shaking table testing and FEM analysis

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