Site Distance Effect on Seismic Behavior of Double Layer Barrel Vaults

2014 ◽  
Vol 29 (3) ◽  
pp. 137-144 ◽  
Author(s):  
Arjang Sadeghi ◽  
Sania Saadi Pour
Keyword(s):  
Double Layer ◽  
Seismic Behavior ◽  
Distance Effect ◽  
Barrel Vaults

Comparison of four meta-heuristic algorithms for optimal design of double-layer barrel vaults

2018 ◽  
Vol 33 (3-4) ◽  
pp. 115-123
Author(s):  
Ali Kaveh ◽  
Majid Ilchi Ghazaan ◽  
Soroush Mahjoubi
Keyword(s):  
Optimal Design ◽  
Double Layer ◽  
Heuristic Algorithms ◽  
Size Optimization ◽  
Community Centers ◽  
Cross Sectional ◽  
Long Span ◽  
Design Variables ◽  
Rail Station ◽  
Barrel Vaults

Barrel vaults are effective semi-cylindrical forms of roof systems that are widespread for multipurpose facilities including warehouse, rail station, pools, sports center, airplane hungers, and community centers because of providing long-span and economical roof with significant amount of space underneath. In the present study, size optimization of double-layer barrel vaults with different configurations is studied. Four recently developed algorithms consisting of the CBO, ECBO, VPS, and MDVC-UVPS are employed and their performances are compared. The structures are subjected to stress, stability, and displacement limitations according to the provisions of AISC-ASD. The design variables are the cross-sectional areas of the bar elements which are selected from steel pipe sections. The numerical results indicate that the MDVC-UVPS outperforms the other algorithms in finding optimal design in all examples.

Optimal design of double layer barrel vaults considering nonlinear behavior

2016 ◽  
Vol 58 (6) ◽  
pp. 1109-1126 ◽  
Author(s):  
Saeed Gholizadeh ◽  
Changiz Gheyratmand ◽  
Hamed Davoudi
Keyword(s):  
Optimal Design ◽  
Double Layer ◽  
Nonlinear Behavior ◽  
Barrel Vaults

Analytical and experimental studies on seismic behavior of double-layer barrel vault systems with different open angles

2012 ◽  
Vol 54 ◽  
pp. 113-125 ◽  
Author(s):  
Jiuk Shin ◽  
Kihak Lee ◽  
Gee-Cheol Kim ◽  
Chan-Woo Jung ◽  
Joo-Won Kang
Keyword(s):  
Double Layer ◽  
Seismic Behavior ◽  
Experimental Studies

scholarly journals Seismic behavior study on a space double-layer lattice structure with a lower supporting structure

2018 ◽  
Vol 10 (11) ◽  
pp. 168781401881437 ◽  
Author(s):  
Gui-bo Nie ◽  
Chen-xiao Zhang ◽  
Jun-wu Dai
Keyword(s):  
Double Layer ◽  
Structural Damage ◽  
Seismic Behavior ◽  
Lattice Structure ◽  
Local Buckling ◽  
Experimental Results ◽  
Shaking Table ◽  
Supporting Structure ◽  
Global Buckling ◽  
The Difference

Severe damage, such as support failure, global buckling of members, local buckling of members, fracture of members, dislocation at the end of members, and failure of bolted connections, were observed in space double-layer lattice structures following the Lushan earthquake (China, 2013, M 7.0). To study the seismic behavior of the space double-layer lattice structure with a lower supporting structure, a series of shaking table tests were conducted. A nonlinear numerical analysis was performed on the damage of the structure, in which the material parameters were obtained from material tests of the steel member. The numerical results were compared with the experimental results, and the difference between the test and the numerical simulation was presented and discussed. The validity and accuracy of the proposed numerical model used for predicting the structural damage was verified by the experimental results, which indicates that the modeling and analytical method was applicable for the analysis of the space double-layer lattice structure.

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