Nonlinear Stability Bearing Capacity Analysis for Plate-Cone Reticulated Shell

2010 ◽  
Vol 163-167 ◽  
pp. 2033-2036
Author(s):  
Fan Wang ◽  
Xing Wang
Keyword(s):  
Bearing Capacity ◽  
Double Layer ◽  
Nonlinear Stability ◽  
Geometrical Nonlinearity ◽  
Capacity Analysis ◽  
Arc Length ◽  
Stability Bearing Capacity ◽  
New Type ◽  
The Stability ◽  
Complete Process

Plate-cone reticulated shell is a new type of double-layer reticulated shell in which ventral members is replaced by cone elements. This paper carries out nonlinear stability bearing capacity analysis on plate-cone reticulated shell considering geometrical nonlinearity of cooperating work between plates and members. In this paper, stability bearing capacity of plate-cone reticulated shells with different kinds of structure form considering geometrical nonlinearity is analyzed by using the software ANSYS, tracking complete process balance path for load-displacement by using arc-length method, the several problems of plate-cone reticulated shell are studied, such as destruction mechanism, structural ductility, stability ultimate bearing capacity and strength reserve, some important conclusions are obtained. After analyzing the stability behavior of double-layer reticulated shell by ANSYS and comparing with plate-cone reticulated shell, it is proved that plate-cone reticulated shell is more advantageous than double-layer reticulated shell in the aspect of stability bearing capacity behavior.

Stability Analysis of Plate-Cone Reticulated Shell

2011 ◽  
Vol 71-78 ◽  
pp. 3760-3763
Author(s):  
Xing Wang
Keyword(s):  
Stability Analysis ◽  
Bearing Capacity ◽  
Double Layer ◽  
Geometrical Nonlinearity ◽  
Ultimate Bearing Capacity ◽  
Arc Length ◽  
Stability Behavior ◽  
Destruction Mechanism ◽  
The Stability ◽  
Complete Process

This paper carries out stability analysis on plate-cone reticulated shell considering geometrical nonlinearity of cooperating work between plates and members. In this paper, stability behavior of different kinds of plate-cone reticulated shell considering geometrical nonlinearity is analyzed by using the software ANSYS, tracking complete process balance path for load-displacement by using arc-length method, the several problems of plate-cone reticulated shell are studied, such as destruction mechanism, structural ductility, ultimate bearing capacity and strength reserve, some important conclusions are obtained. After analyzing the stability behavior of double-layer reticulated shell by ANSYS and comparing with plate-cone reticulated shell, it is proved that plate-cone reticulated shell is more advantageous than double-layer reticulated shell in the aspect of stability behavior.

scholarly journals Analysis and Calculation of Stability Coefficients of Cross-Laminated Timber Axial Compression Member

Polymers ◽  
2021 ◽  
Vol 13 (23) ◽  
pp. 4267
Author(s):  
Qi Ye ◽  
Yingchun Gong ◽  
Haiqing Ren ◽  
Cheng Guan ◽  
Guofang Wu ◽  
...  
Keyword(s):  
Bearing Capacity ◽  
Axial Compression ◽  
Calculation Method ◽  
National Standards ◽  
Test Results ◽  
Average Deviation ◽  
Stability Coefficient ◽  
Cross Laminated Timber ◽  
Stability Bearing Capacity ◽  
The Stability

Cross-laminated timber (CLT) elements are becoming increasingly popular in multi-storey timber-based structures, which have long been built in many different countries. Various challenges are connected with constructions of this type. One such challenge is that of stabilizing the structure against vertical loads. However, the calculations of the stability bearing capacity of the CLT members in axial compression in the structural design remains unsolved in China. This study aims to determine the stability bearing capacity of the CLT members in axial compression and to propose the calculation method of the stability coefficient. First, the stability coefficient calculation theories in different national standards were analyzed, and then the stability bearing capacity of CLT elements with four slenderness ratios was investigated. Finally, based on the stability coefficient calculation formulae in the GB 50005-2017 standard and the regression method, the calculation method of the stability coefficient for CLT elements was proposed, and the values of the material parameters were determined. The result shows that the average deviation between fitting curve and calculated results of European and American standard is 5.43% and 3.73%, respectively, and the average deviation between the fitting curve and the actual test results was 8.15%. The stability coefficients calculation formulae could be used to predict the stability coefficients of CLT specimens with different slenderness ratios well.

scholarly journals Parameter analysis of stability bearing capacity of bottom frame beam for container building

2019 ◽  
Vol 136 ◽  
pp. 04062
Author(s):  
Songfeng Sun ◽  
Penggang Guo ◽  
Qingyu Zhang ◽  
Baoguang Chen ◽  
Pingping Zhang
Keyword(s):  
Finite Element Method ◽  
Bearing Capacity ◽  
Parameter Analysis ◽  
Factors Affecting ◽  
Control Factors ◽  
Stability Bearing Capacity ◽  
Analysis Of Stability ◽  
The Stability ◽  
Bottom Frame ◽  
The Web

In this paper, the bottom frame beam of container building is analyzed by finite element method, and compared with the experimental results, the accuracy of the model is verified to meet the needs of the analysis. On this basis, by changing the stiffening position of the upper flange, the height of the web, the load layout and the thickness of the wall, the variation of the stability bearing capacity of the bottom frame beam was studied, the control factors affecting the stability bearing capacity of the bottom frame beam were obtained, and the selection suggestions were given.

Stability Bearing Capacity of Dendritic Arms in Tainter Gate

2015 ◽  
Vol 733 ◽  
pp. 464-467
Author(s):  
Yong Kang Shen ◽  
Zheng Zhong Wang ◽  
Chun Long Zhao
Keyword(s):  
Stability Analysis ◽  
Bearing Capacity ◽  
Effective Length ◽  
Analysis Method ◽  
Analysis Model ◽  
Minimum Potential Energy ◽  
Stability Bearing Capacity ◽  
Minimum Potential ◽  
The Stability ◽  
Radial Gate

The new arms form of radial gate—dendritic arms is introduced for the proper mechanical mechanism, however the stability design is very difficult. According to the stability theory of structure, the stability analysis model of step column with lateral restraints was proposed for dendritic arms, some equations was derived from the principle of minimum potential energy, the practical formulas of buckling bearing capacity and effective length coefficient were provided. According to an example, the accuracy on formulas was verified by finite analysis method.

The Stability of Elliptic Paraboloid Grid Shell Lighting Roofs with Semi-Rigid Joints

2011 ◽  
Vol 374-377 ◽  
pp. 2148-2151 ◽  
Author(s):  
Ruo Qiang Feng ◽  
Bin Yao ◽  
Ji Hong Ye
Keyword(s):  
Bearing Capacity ◽  
Single Layer ◽  
Initial Imperfection ◽  
Parametric Modeling ◽  
Elliptic Paraboloid ◽  
Grid Shell ◽  
Steel Bars ◽  
New Type ◽  
The Stability ◽  
Rigid Joints

Grid shell is a new type of single layer latticed shell. Joint connections of this structrue always adopt semi-rigid joints: in-plane pin joints, out-plane rigid joints. A parametric modeling method using self-designed program is proposed in this paper. Bearing capacity of the elliptic paraboloid grid shell with semi-rigid joints is analyzed. Then, the influence of section of steel bars, rise-span ratio and initial imperfection on the bearing capacity is investigated.

Stability Analyses for Single Arch of Arch-Reticulated Shell Hybrid Steel Structure of Conservatories at Gardens by the Bay in Singapore

2011 ◽  
Vol 243-249 ◽  
pp. 832-837
Author(s):  
Yang Gao ◽  
Zhao Yi Zhang ◽  
Yong Jiu Shi ◽  
Yuan Qing Wang ◽  
Guo Xing Li
Keyword(s):  
Bearing Capacity ◽  
Local Stability ◽  
Full Range ◽  
Steel Structure ◽  
Load Bearing ◽  
Stability Analyses ◽  
Stability Bearing Capacity ◽  
Grid Shell ◽  
Stiffening Ribs ◽  
The Stability

Conservatories at gardens by the bay in Singapore consist of Cool Dry and Cool Moist, which are intended for the display of plants that typically thrive separately in cool dry and cool moist climates. The envelope itself consists of a grid shell-arch steel structure with a double glazed skin that sits directly on the grid shell, and the arches are the main load-bearing components. This paper analyzed the stability of one single arch whose span is the longest one in the corresponding structure, including buckling analyses and non-linear full range analyses. It also carried out stability analyses on some arch segments. The results showed that the stability bearing capacity of single arches met requirements, while some arch segments didn’t. After using the stiffening ribs, the local stability reached its requirements.

Nonlinear Stability Analysis of Long-Span Suspension Bridge Cable Tower

2014 ◽  
Vol 1030-1032 ◽  
pp. 802-806
Author(s):  
Xu Luo ◽  
Xin Sha Fu ◽  
Li Xiong Gu ◽  
Lu Rong Cai
Keyword(s):  
Finite Element ◽  
Nonlinear Stability ◽  
Geometrical Nonlinearity ◽  
Suspension Bridge ◽  
Suspension Bridges ◽  
Design Calculation ◽  
Safety Control ◽  
Finite Element Software ◽  
Long Span ◽  
The Stability

The cable tower is the bearing component of long-span suspension bridges, and its structure is very high and bear large force, which determines the stability and is the key of safety control. As for the height of the main tower of a long-span suspension bridge up to 195.3 m, the finite element software ANSYS is used to establish a three-dimensional finite element model (FEM), and the effects of geometric nonlinearity and material nonlinearity on the stability of the main tower are analyzed. The calculation results show that geometrical nonlinearity and material defects have significant influence on the main tower stability, and the nonlinear stability should be considered under wind load in the design calculation.

Stability Bearing Capacity Analysis for High-Strength Angle Steel Members with an Eccentric Load at One End

2011 ◽  
Vol 474-476 ◽  
pp. 739-743
Author(s):  
Xian Lei Cao ◽  
Ji Ping Hao
Keyword(s):  
Bearing Capacity ◽  
Analytical Method ◽  
High Strength ◽  
Eccentric Load ◽  
Stability Bearing Capacity ◽  
Experiment Method ◽  
Angle Steel ◽  
The Stability ◽  
End Restraint ◽  
The Impact

Single-angle compression members with an eccentric load at one end were widely used in transmission towers, analyzing the stability bearing capacity become a very complex issue due to end restraint conditions and the impact of defects. Experiment method and analytical method were used to study the size of the stability capacity on four kinds of members, analytical method use energy relationship, the boundary conditions issue is simplified according to different end restraint capacity, and finally discuss the theoretical ultimate bearing capacity of the test members. Compared with the experimental results show that the elastic theory analytical solution overestimates the capacity of members, using experiment method can obtain more secure mechanical behavior of high-strength angle steel member with an eccentric load at one end.

Applicability Study on Method of Stability Analysis for Suspendome Structures

2010 ◽  
Vol 163-167 ◽  
pp. 1916-1923
Author(s):  
Kai Rong Shi ◽  
Zheng Rong Jiang ◽  
Shi Tong Wang
Keyword(s):  
Stability Analysis ◽  
Steel Structures ◽  
Hybrid Structure ◽  
Analysis Method ◽  
Buckling Mode ◽  
Stability Bearing Capacity ◽  
Geometrical Imperfections ◽  
New Type ◽  
Analytical Result ◽  
The Stability

Consistent Mode Imperfections Method based on eigenvalue buckling mode is widely adopted in the stability analysis for the spatial steel structures with initial geometrical imperfections, i.e. latticed shells, thin shells, etc. Taking the new type hybrid structure of suspendome as the analytical object, the applicability of Consistent Mode Imperfections Method is discussed. The effects on structural stability are probed arisen by the factors such as different initial reference loads and different order eigenvalue buckling modes. It is indicated that this stability analysis method can be quite fit for the spatial structures such as latticed shells, while for suspendomes, the initial reference load has a distinct effect upon the analytical result obtained by the stability analysis method. Moreover, it is not always to dominate calculating result when selecting the first order eigenvalue buckling mode as the distributing pattern of initial geometrical imperfections. As a result, some measures should be taken to improve the accuracy in evaluating the stability bearing capacity of the structures with Consistent Mode Imperfections Method based on eigenvalue buckling mode.

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