scholarly journals Stability analysis of single-layer special-shaped folded-plane latticed shell

2021 ◽  
Vol 233 ◽  
pp. 03029
Author(s):  
Jiajun Li ◽  
Jing Yang ◽  
Yunan Li ◽  
Jian Yang
Keyword(s):  
Critical Load ◽  
Single Layer ◽  
Static Stability ◽  
Paper Analysis ◽  
Buckling Analysis ◽  
Load Factor ◽  
Nonlinear Buckling ◽  
Buckling Modes ◽  
Overall Stability ◽  
Nonlinear Buckling Analysis

Single-layer special-shaped folded-plane latticed shell had been applied in Shenyang culture and art center. In order to analysis its static stability, explore the form of buckling modes and find out its critical load factor, this paper analysis the optimized structure with MIDAS Gen. Eigenvalue buckling analysis and nonlinear buckling analysis showed that the in-plane stiffness of the structure is very large, and the out-plane stiffness is small, the upside structure is prone to instability. The critical load factor for this structure is 10.32, the structural overall stability is fine according to the code. This structures is sensitive to the initial geometric imperfections which could lower structural stability of the system.

Stability Analysis of the Radiant Cable Suspendome

2012 ◽  
Vol 226-228 ◽  
pp. 1185-1189
Author(s):  
Jian Kang ◽  
Xiang Yu Liu
Keyword(s):  
Stability Analysis ◽  
Single Layer ◽  
Hybrid Structure ◽  
Buckling Analysis ◽  
Nonlinear Buckling ◽  
Geometrical Imperfection ◽  
String Structure ◽  
The Stability ◽  
Nonlinear Buckling Analysis ◽  
Lattice Shell

Radiant cable suspendome based on single-layer lattice shell is proposed in this paper whose cable-strut system is like that of Radiant Beam String Structure, the purpose of this paper is to do stability analysis of the structure.The linear buckling analysis of the hybrid structure and the single-layer lattice shell who has the same geometry parameters is carried out, we can preliminarily understand the stability of the hybrid structure. At the same time, nonlinear buckling analysis is carried out to study the stability of the hybrid structure under different rise-span ratios, different prestress level and half-span load. The results show that the introduction of prestressed cables greatly improve the structure's stability and reduce the structure sensitivity to original geometrical imperfection.

Nonlinear Buckling Analysis of Long-Span Suspended Latticed Intersected Cylindrical Shell

2014 ◽  
Vol 919-921 ◽  
pp. 169-176 ◽  
Author(s):  
Ming Liang Zhu ◽  
Yan Sun
Keyword(s):  
Cylindrical Shell ◽  
Bearing Capacity ◽  
Single Layer ◽  
Ultimate Bearing Capacity ◽  
Buckling Analysis ◽  
Nonlinear Buckling ◽  
Long Span ◽  
The Stability ◽  
Nonlinear Buckling Analysis ◽  
Material Nonlinear

The Suspended Latticed Intersected Cylindrical Shell (SLICS) is a new structural system, composed by the single layer Latticed Intersected Cylindrical Shell (LICS) and the prestressed cable-strut system. Mechanical properties of this structure were investigated through nonlinear buckling analysis by the consistent imperfect buckling analysis method, compared with the single layer LICS. Structure parameters including prestress level, member section, length of bar, rise-span ratio, obliquity were analyzed. And the effect of material nonlinearity on the stability was studied. Results show that the ultimate bearing capacity of the SLICS is improved as the introduction of prestress. However the prestress level has a limited impact on the ultimate bearing capacity. And the material nonlinear is very important to the stability of the SLICS.

Elastic Buckling Analysis of Rigidly Jointed Single Layer Reticulated Domes with Random Initial Imperfection

1992 ◽  
Vol 7 (4) ◽  
pp. 265-273 ◽  
Author(s):  
Toshiro Suzuki ◽  
Toshiyuki Ogawa ◽  
Kikuo Ikarashi
Keyword(s):  
Single Layer ◽  
Initial Imperfection ◽  
Random Variable ◽  
Buckling Analysis ◽  
Buckling Load ◽  
Mode Shapes ◽  
Elastic Buckling ◽  
Nonlinear Buckling ◽  
Reticulated Domes ◽  
Nonlinear Buckling Analysis

In the present paper, the effect of imperfection on the elastic buckling load and mode shapes of externally-loaded single layer reticulated domes is investigated. The types of buckling concerned here are the general buckling, the local (dimple) buckling and the buckling of a member. As to the geometric parameter of a dome, the slenderness factor S is adopted which represents the openness and slenderness of the dome. The maximum value of the imperfection is assumed to be the normal random variable. The buckling loads are computed by the linear and the nonlinear buckling analysis using the finite element method. The statistical values are calculated by the three-points estimates method. The main points of interest are the influence of the shape and the extent of an imperfection on the buckling load.

Stability Analysis of the Radiant Cable Suspendome

2014 ◽  
Vol 1065-1069 ◽  
pp. 1240-1244
Author(s):  
Zhen Hua Liu ◽  
Hong Zhu Shan ◽  
Xiang Yu Liu ◽  
Tao Wang
Keyword(s):  
Stability Analysis ◽  
Single Layer ◽  
Hybrid Structure ◽  
Buckling Analysis ◽  
Nonlinear Buckling ◽  
Geometrical Imperfection ◽  
String Structure ◽  
The Stability ◽  
Nonlinear Buckling Analysis ◽  
Lattice Shell

Radiant cable suspendome based on single-layer lattice shell is proposed in this paper whose cable-strut system is like that of Radiant Beam String Structure, the purpose of this paper is to do stability analysis of the structure.The linear buckling analysis of the hybrid structure and the single-layer lattice shell who has the same geometry parameters is carried out, we can preliminarily understand the stability of the hybrid structure. At the same time, nonlinear buckling analysis is carried out to study the stability of the hybrid structure under different rise-span ratios, different prestress level and half-span load. The results show that the introduction of prestressed cables greatly improve the structure's stability and reduce the structure sensitivity to original geometrical imperfection.

Nonlinear Buckling Analysis of Hoisting with Application to Long-Span Steel Truss

2011 ◽  
Vol 94-96 ◽  
pp. 421-424
Author(s):  
Shun Guo Li ◽  
Hui Li
Keyword(s):  
Finite Element ◽  
Element Model ◽  
Buckling Analysis ◽  
Analysis Method ◽  
Nonlinear Buckling ◽  
Buckling Modes ◽  
Long Span ◽  
Steel Truss ◽  
Nonlinear Buckling Analysis ◽  
The Finite Element Model

Nonlinear buckling analysis method using the finite element with application to Long-Span Steel Truss was studied is this paper. The finite element model of long-span complex steel truss hoisting was established and nonlinear buckling analysis of long-span complex steel truss hoisting for two hoisting points schemes was accomplished. The eigenvalues, eigenvalue buckling modes and nonlinear buckling analysis of two hoisting point’s scheme were analyzed. The results indicate that, the nonlinear buckling analysis method using the finite element is applicable approach to study the hoisting buckling problem, the buckling will be not occurring under hoisting stage only with gravity loads. The force status of long-span complex steel truss is improved under more hoisting point’s scheme and the lateral stability is strengthened.

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