Experimental and theoretical study on the bearing capacity of FGC joints for single-layer aluminium alloy lattice shell structures

Structures ◽  
2021 ◽  
Vol 33 ◽  
pp. 2445-2458
Author(s):  
Wang Gang ◽  
Zhao Caiqi
Keyword(s):  
Bearing Capacity ◽  
Aluminium Alloy ◽  
Theoretical Study ◽  
Single Layer ◽  
Shell Structures ◽  
Lattice Shell

Elasto-Plastic Bearing Capacity of Four Types of Single-Layer Reticulated Shell Structures Under Fire Hazards

2015 ◽  
Vol 15 (03) ◽  
pp. 1450051
Author(s):  
Yin Bai ◽  
Lu Yang ◽  
Lingfeng Gong
Keyword(s):  
High Temperature ◽  
Bearing Capacity ◽  
Single Layer ◽  
Critical Factor ◽  
Shell Structures ◽  
Nonuniform Temperature ◽  
Fire Hazards ◽  
Ambient Temperatures ◽  
Practical Design ◽  
Fire Conditions

Single-layer reticulated shells are widely used in spatial structures. One critical factor that has to be considered in the design of reticulated shells is the significant adverse impact of high temperature caused by fire on the structures. In order to study the variation of elasto-plastic bearing capacity under high temperature by fire, four types of single-layer reticulated shells (i.e. K6, Geodesic, Schwedler and Lamella) are investigated under two typical fire conditions (i.e. global nonuniform temperature distribution and local high temperature) by the geometrically and materially nonlinear analysis and statistical methods. Practical design formulae for calculating the elasto-plastic bearing capacity of reticulated shell structures under different fire conditions and ambient temperatures are proposed based on the numerical simulation results.

Research on the Influence of the P-δ Effect to Ultimate Bearing Capacity of Single Layer Latticed Shell Structures

2012 ◽  
Vol 193-194 ◽  
pp. 872-875
Author(s):  
Wen Feng Du ◽  
Zhi Yong Zhou
Keyword(s):  
Bearing Capacity ◽  
Shell Structure ◽  
Single Layer ◽  
Ultimate Bearing Capacity ◽  
Shell Structures ◽  
High Rise ◽  
Element Simulation

The ultimate bearing capacity of the single-layer latticed shell structure, calculated without considering the single-member instability(P-δ effect), was not consistent to the actual value of ultimate bearing capacity in practice. It was studied in detail that the ultimate bearing capacity of the single-layer latticed shell structure considering the member instability by proposing a method of multi-element simulation. The value of the ultimate bearing capacity decreased by 15.6% after considering the member instability taking a single-layer latticed shell structure with a 40m span as example. The analysis results show that the value of ultimate bearing capacity is significantly affected for the single-layer latticed shell structure with a small span and high rise-span ratio

Study on the Static Stability and the Ultimate Bearing Capacity of Vierendeel Latticed Shells

2011 ◽  
Vol 94-96 ◽  
pp. 868-871
Author(s):  
Wen Feng Du ◽  
Zhi Yong Zhou ◽  
Fu Dong Yu
Keyword(s):  
Finite Element Method ◽  
Bearing Capacity ◽  
Carrying Capacity ◽  
Shell Structure ◽  
Single Layer ◽  
Static Stability ◽  
Ultimate Bearing Capacity ◽  
The Finite Element Method ◽  
The Stability ◽  
Lattice Shell

Studies on the static stability and the ultimate bearing capacity of vierendeel latticed shells have been carried out. The buckling modal and the whole course of instability are shown using the Finite Element Method. The ultimate bearing capacity is compared with that of the single-layer latticed shell structure. The results show that the ultimate bearing capacity of the vierendeel latticed shells is 2.87 times more than that of the single-layer lattice shell in the condition of consuming the same steel. The vierendeel latticed shell structure not only has the advantages of concision and transparency like the single layer latticed shell structure, but also has the stability and carrying capacity like double-layer latticed shell structure.

Calculation method of the bearing capacity of a novel modular joint of an aluminium alloy lattice shell structure

Structures ◽  
2021 ◽  
Vol 34 ◽  
pp. 3268-3282
Author(s):  
Caiqi Zhao ◽  
Yunwen Zhou ◽  
Gang Wang ◽  
Haoyue Li ◽  
Yating Wang
Keyword(s):  
Bearing Capacity ◽  
Aluminium Alloy ◽  
Calculation Method ◽  
Shell Structure ◽  
Lattice Shell

Effect of Pile and Load Inclination on the Pile Resistance In both Compression and Tension

2014 ◽  
Vol 2 (1) ◽  
pp. 11-29
Author(s):  
Ahmad Jabber Hussain ◽  
Alaa Dawood Salman ◽  
. Nazar Hassan Mohammad
Keyword(s):  
Bearing Capacity ◽  
Inclination Angle ◽  
Theoretical Study ◽  
Pile Installation ◽  
Soil Failure ◽  
Inclined Pile ◽  
Uplift Resistance ◽  
Lift Forces ◽  
Batter Piles ◽  
Pile Resistance

      According to this theoretical study which was about loading of piles under different condition of loading (compression and up-lift forces ) and for deferent pile installation (vertical and inclined pile ) by which it called (positive batter pile ) when the inclination of the load and pile is in the same direction and called (negative batter pile) when the inclination of load is opposite to the pile inclination, and from studying these cases the results of analysis can be summarize in the flowing points: 1-Variation of load inclination on piles effects on the bearing capacity and uplift resistance. It was found that bearing capacity of the piles increase with increasing of load inclination up to the inclination angle (37.5ͦ) which represents the maximum bearing capacity and then the bearing capacity decrease with increasing of load inclination. 2- Variation of batter pile affects the bearing capacity of the pile and up-lift resistance. by which equivalent angle will be used as result between the load and piles inclination and this angle will be used in calculation of piles resistance . 3- It was noticed the shape of soil failure is highly affected by the inclination of pile. The shape of failure for the soil which is in contact with pile and this include (vertical and batter piles) is highly affected by the angle of inclination.

scholarly journals Numerical Analysis of Bearing Capacity of a Ring Footing on Geogrid Reinforced Sand

Buildings ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 68
Author(s):  
Haidar Hosamo ◽  
Iyad Sliteen ◽  
Songxiong Ding
Keyword(s):  
Numerical Analysis ◽  
Bearing Capacity ◽  
Double Layer ◽  
Practical Importance ◽  
Single Layer ◽  
Outer Diameter ◽  
Storage Container ◽  
Reinforced Sand ◽  
Oil Storage ◽  
Ring Footing

A ring footing is found to be of practical importance in supporting symmetrical constructions for example silos, oil storage container etc. In the present paper, numerical analysis was carried out with explicit code FLAC3D 7.0 to investigate bearing capacity of a ring footing on geogrid reinforced sand. Effects of the ratio n of its inner/outer diameter (Di/D) of a ring footing, an optimum depth to lay the geogrid layer were examined. It was found that an intersection zone was developed in soil under inner-side (aisle) of ring footing, contributing to its bearing capacity. Substantial increase of bearing capacities could be realized if ratio n of a ring footing was around 0.6. Numerical results also showed that, bearing capacity of a ring footing could increase significantly if a single-layer geogrid was laid at a proper depth under the footing. Similar contribution was found if a double-layer geogrid was implemented. However, such increases appeared to be rather limited if a triple-layer geogrid or a four-layer geogrid was used. A double-layer geogrid was recommended to increase the bearing capacity of a ring footing; the depth to lay this double-layer geogrid was also discussed.

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