scholarly journals BUCKLING STRENGTH OF SINGLE LAYER LATTICE DOMES UNDER STATIC SEISMIC LOAD

2014 ◽  
Vol 79 (704) ◽  
pp. 1523-1533 ◽  
Author(s):  
Toshiyuki OGAWA ◽  
Kousuke YAMAOKA ◽  
Ken'ichi MINOWA ◽  
Toru TAKEUCHI
Keyword(s):  
Single Layer ◽  
Seismic Load ◽  
Buckling Strength

Comparison of seismic responses of a reticulated dome under stochastic uniform and spatially correlated and coherent multiple-support excitation for a scenario seismic event

2020 ◽  
Vol 35 (4) ◽  
pp. 113-125
Author(s):  
YG Li ◽  
TJ Liu ◽  
F Fan ◽  
HP Hong
Keyword(s):  
Spatial Correlation ◽  
Seismic Event ◽  
Amplitude Spectrum ◽  
Spatial Coherence ◽  
Single Layer ◽  
Seismic Load ◽  
Seismic Responses ◽  
Spatially Correlated ◽  
Multiple Support ◽  
Support Excitation

Structures with multiple supports can be sensitive to spatial coherence and spatial correlation. Since the historical recordings are insufficient for selecting records that match predefined inter-support distances of a structure, desired seismic magnitude (or intensity) and site to seismic source distance for structural analysis, such records need to be simulated. In this study, we use a procedure that is extended based on the stochastic point-source method to simulate records for scenario events. The application of the simulated records to a single-layer reticulated dome with multiple supports is presented. The application is aimed at investigating the differences between the responses subjected to spatially uniform excitation and to spatially correlated and coherent multiple-support excitation for a scenario seismic event, assessing the relative importance of the spatial coherence and spatial correlation on the responses, and evaluating the effect of the uncertainty in the spatially correlated and coherent records for a scenario event on the statistics of the seismic responses. The analysis results indicate that the spatial correlation of the Fourier amplitude spectrum has a predominant influence on the linear/nonlinear responses, and the consideration of spatially correlated and coherent excitation at multiple supports is very important. The consideration of uniform excitation severely underestimates the seismic load effects as compared to those obtained under spatially correlated and coherent multiple-support excitation.

scholarly journals BUCKLING STRENGTH OF TWO-WAY SINGLE-LAYER LATTICE DOMES STIFFENED BY DIAGONAL BRACES

2012 ◽  
Vol 77 (676) ◽  
pp. 891-898 ◽  
Author(s):  
Shiro KATO ◽  
Noriko YOSHIDA ◽  
Shoji NAKAZAWA
Keyword(s):  
Single Layer ◽  
Buckling Strength

Vertical and Horizontal Seismic Response Analyses of Long-Span and Single-Layer Spherical Lattice Shell Structure

2014 ◽  
Vol 602-605 ◽  
pp. 602-605
Author(s):  
Jin Sheng He ◽  
She Liang Wang
Keyword(s):  
Vibration Control ◽  
Shell Structure ◽  
Response Spectrum ◽  
Single Layer ◽  
Internal Force ◽  
Seismic Load ◽  
Seismic Responses ◽  
Long Span ◽  
Current Design ◽  
Lattice Shell

The dynamic characteristics of 80 m single-layer spherical lattice shell structure are analyzed to control its vibration under seismic load. Through the response spectrum curve of current design specification, the analyses for the vertical and horizontal seismic responses of the single-layer spherical lattice shell structure are made by CQC, and the displacement response of the nodes and internal force of the rods unit are calculated respectively. The calculation results show that the vertical and horizontal seismic responses of the long-span lattice shell structure are in great difference, and should be performed in vibration control at the same time, which could provide certain references for the seismic design and vibration control of single-layer spherical lattice shell structure.

scholarly journals BUCKLING STRENGTH MAXIMIZATION OF SINGLE LAYER FREE-FORM RETICULATED SHELLS

2017 ◽  
Vol 82 (733) ◽  
pp. 441-450
Author(s):  
Yuji TAKIUCHI ◽  
Shiro KATO ◽  
Shoji NAKAZAWA
Keyword(s):  
Single Layer ◽  
Free Form ◽  
Buckling Strength

scholarly journals BUCKLING STRENGTH EVALUATION OF SINGLE-LAYER RETICULATED CYLINDRICAL ROOFS UNDER UNIFORM LOAD

2013 ◽  
Vol 78 (692) ◽  
pp. 1777-1786
Author(s):  
Shiro KATO ◽  
Shoji NAKAZAWA ◽  
Yasuaki KODO ◽  
Toshimasa YANAGISAWA
Keyword(s):  
Single Layer ◽  
Uniform Load ◽  
Strength Evaluation ◽  
Buckling Strength

scholarly journals BUCKLING STRENGTH OF CYLINDRICAL LATTICE SHELL ROOFS UNDER STATIC SEISMIC LOAD

2015 ◽  
Vol 80 (708) ◽  
pp. 261-271 ◽  
Author(s):  
Toshiyuki OGAWA ◽  
Kosuke YAMAOKA ◽  
Ken'ichi MINOWA ◽  
Toru TAKEUCHI
Keyword(s):  
Seismic Load ◽  
Buckling Strength ◽  
Lattice Shell
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