GENERAL BUCKLING OF CYLINDRICAL RETICULATED SHELL ROOFS WITH ARBITRARY GENERATOR EDGES : Part 3 : Buckling with Imperfections

Kokawa, Tsutomu

doi:10.3130/aijsaxx.295.0_51

Cited by 3 publications

(2 citation statements)

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“…Lattice shells are habitually designed with mainly gravity loads in mind, as they can span large distances efficiently without intermediate columns. Their general design against gravity loads and global buckling has been covered extensively in previous studies [2][3][4][5][6][7][8][9][10], for all sorts of geometries including elliptic paraboloids [11,12], spherical domes [13,14], and cylindrical forms [15][16][17][18][19][20]. Although these structures are mainly designed for gravity loads, horizontal forces produced by earthquakes can have a significant influence on various design and performance aspects.…”

Section: Introductionmentioning

confidence: 99%

Seismic performance of single layer steel cylindrical lattice shells

Cedrón

Elghazouli

2019

Journal of Constructional Steel Research

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This paper examines the elastic and inelastic seismic behaviour of single layer steel cylindrical lattice shells. The main dynamic characteristics for this form of structure are firstly examined through a parametric assessment, which also leads to proposed expressions for estimating the fundamental period and mode of vibration. The seismic response of five typical shell configurations, representing a wide range of rise to span ratios, is then assessed within the linear elastic range under selected earthquake excitations. Particular focus is given to the relative influence of the horizontal and vertical seismic components on the internal actions. In order to provide a means for evaluating the underlying inelastic behaviour, a simple pushover approach, which is suitable for this structural form, is suggested using the forces obtained from the fundamental mode shape. The peak angle change is proposed as a damage parameter within the nonlinear analysis for characterising the inelastic global and local demands in shells of different geometries. Incremental dynamic analysis is subsequently carried out in order to evaluate the detailed nonlinear time history response. The results provide detailed insights into the influence of the horizontal and vertical excitations on the nonlinear seismic response, and illustrate the suitability of the peak angle change as an inelastic deformation measure for shells of different geometric configurations. The main findings from the linear and nonlinear assessments are highlighted within the discussions, with a view to providing guidance for performance based assessment procedures as well as simplified design approaches.

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Section: Introductionmentioning

confidence: 99%

Seismic performance of single layer steel cylindrical lattice shells

Cedrón

Elghazouli

2019

Journal of Constructional Steel Research

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“…Lattice shell structures are normally designed primarily for gravity loads, as their lightweight nature is ideal for large spans. Accordingly, their design for global stability under gravity loads has been studied extensively [1][2][3][4][5][6][7][8][9], for a wide array of configurations such as elliptic paraboloids [10,11], spherical domes [12,13], and cylindrical vaults [14][15][16][17][18][19]. In contrast, their design for seismic actions has received relatively less attention, particularly in terms of practical design considerations that can be used in codified guidance.…”

Section: Introductionmentioning

confidence: 99%

Assessment and design considerations for single layer cylindrical lattice shells subjected to seismic loading

Cedrón

Elghazouli

2021

Structures

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Reconsideration of Estimation Procedure for Elastic Plastic Buckling Loads of Cylindrical Latticed Shells

NIHO,

KATO

2024

Transactions of AIJ

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Although AIJ recommendation for design of latticed shell roof structures has suggested a procedure to calculate buckling capacity of cylindrical latticed shells, calculation methods of the buckling capacity for the shells subjected to non-uniform load remain to be one of the indefinite issues.This paper investigates the effects of both load eccentricity and geometrical initial imperfection on buckling loads of cylindrical latticed shells with a special focus on the variation of the knock down factor due to the load eccentricity, and the results provide improvement for the estimation procedure suggested in the current AIJ recommendation.

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GENERAL BUCKLING OF CYLINDRICAL RETICULATED SHELL ROOFS WITH ARBITRARY GENERATOR EDGES : Part 3 : Buckling with Imperfections

Cited by 3 publications

References 0 publications

Seismic performance of single layer steel cylindrical lattice shells

Seismic performance of single layer steel cylindrical lattice shells

Assessment and design considerations for single layer cylindrical lattice shells subjected to seismic loading

Reconsideration of Estimation Procedure for Elastic Plastic Buckling Loads of Cylindrical Latticed Shells

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