scholarly journals Optimal Design of Space Grid Structure

2015 ◽  
Author(s):  
Zi ying Li ◽  
Hong Gan
Keyword(s):  
Optimal Design ◽  
Grid Structure ◽  
Space Grid

The Seismic Damage Investigation and Phenomenon Analysis of Space Grid Structures in Lushan Ms 7.0 Earthquake

2014 ◽  
Vol 501-504 ◽  
pp. 1535-1541 ◽  
Author(s):  
Jue Hui Xing ◽  
Ming Lu ◽  
Hai Wang Li ◽  
Ya Min Zhao ◽  
Yan Yu
Keyword(s):  
Seismic Design ◽  
Shell Structure ◽  
Historical Earthquakes ◽  
Seismic Damage ◽  
Grid Structure ◽  
Paper Briefly ◽  
Space Grid ◽  
Reticulated Shell Structure ◽  
Ball Joints ◽  
Damage Investigation

People remained optimistic about the safety of the space grid structures, because the seismic damages of space grid structures were quite rare and rather light. However, two space grid structures got damaged in 2013 Lushan Ms 7.0 earthquake. The two structures are the double-layer reticulated shell structure and flatbed grid structure, namely Lushan Gymnasium and Lushan Middle School Gymnasium respectively. This paper briefly reviews the seismic damage phenomena of grid structures in historical earthquakes, and then focuses on the two damaged space grid structures in Lushan earthquake. The reason why the two space grid structures got damaged are derived from the force state analysis of the rods, ball joints and bearings. Finally, we come up with the effective advice for the seismic design and construction of the space grid structure.

Simplified Design Approach for Large-Space Grid Structure Considering Fire Conditions

2011 ◽  
Vol 368-373 ◽  
pp. 1092-1096
Author(s):  
Hai Yong Yang ◽  
Yin Bai ◽  
Yong Jiu Shi ◽  
Yuan Qing Wang
Keyword(s):  
Sandwich Plate ◽  
Design Approach ◽  
Grid Structure ◽  
Maximum Displacement ◽  
Large Space ◽  
Element Analysis ◽  
Analogy Method ◽  
Space Grid ◽  
Mechanical Performances ◽  
Fire Conditions

It is important and necessary to establish fire-resisting design approach for large-space grid structures. In terms of establishing finite element analysis models, main influencing factors on mechanical performances of grid structure under fire conditions were determined. Based on numerical calculation and comparison analysis on ordinary sandwich plate analogy method considering the effect of fire, a simplified design approach named modified sandwich plate analogy method for calculating maximum displacement of grid structures under fire conditions is given. It gives guidance for structural fire-resisting designers.

Reinforcement Technology of Space Grid Structure for Reconstruction of Shandong Qufu Xingtan Theater

2011 ◽  
Vol 243-249 ◽  
pp. 5487-5490
Author(s):  
Lian Fen Weng ◽  
Ming Gong ◽  
Zhen Hua Liu ◽  
Xiao Bei Wang
Keyword(s):  
Bearing Capacity ◽  
Double Layer ◽  
Mechanical Performance ◽  
Slenderness Ratio ◽  
Social Benefit ◽  
Grid Structure ◽  
Construction Period ◽  
Structure System ◽  
Space Grid ◽  
Temporary Structure

Shandong Qufu Xingtan Theater, originally built for an open-air theater, was designed as a one-time temporary structure with bolt ball junction double-layer regular pyramids grid structure roofing system. Because of the transformation of open-air structure system to an enclosed construction, some members of the space grid structure can not meet the required bearing capacity. According to the mechanical performance of space grid structures, the reinforcement methods of “circular steel jacketing” and “lateral support” are conducted, which are based on the analysis of the stress and stability characteristics of different grid members. By using the methods given above, the stress and slenderness ratio is decreased. The results indicate that the two reinforcement methods can reduce the difficulty in construction, shorten the construction period, and gain good economic and social benefit.

Structure Mechanics Analysis with Different Construction Schemes in Large-Span Space Grid Structure

2013 ◽  
Vol 788 ◽  
pp. 534-537 ◽  
Author(s):  
Zhen Xing Li
Keyword(s):  
Great Influence ◽  
Construction Method ◽  
Quality And Safety ◽  
Grid Structure ◽  
Large Span ◽  
Construction Scheme ◽  
Space Grid ◽  
Mechanics Analysis ◽  
Practical Engineering ◽  
Selection Of

Different construction schemes in the same construction method have great influence on structure mechanics of grid structure, which is very important for the security and stability in large-span space grid structure. So in order to guarantee the quality and safety of the structure during construction, the selection of construction scheme is particularly important. In this paper, the following practical engineering is adopted to discuss characteristics of different construction schemes in large-span space grid structure and provide a reference for what construction scheme should be selected in the installation of similar space grid structures.

scholarly journals Rationalization of space grid structure systems

2019 ◽  
Author(s):  
Valery Shmukler ◽  
Petro Reznik ◽  
Tomasz Janiak
Keyword(s):  
Grid Structure ◽  
Space Grid

The Doubly Nonlinear Limit Load Analysis of Space Grid Structure

2012 ◽  
Vol 166-169 ◽  
pp. 144-149
Author(s):  
Cao Xi ◽  
Yun Hong Hao
Keyword(s):  
Limit Load ◽  
Grid Structure ◽  
Limit Loads ◽  
Load Increment ◽  
Mechanics Model ◽  
Space Grid ◽  
Calculated Load ◽  
Doubly Nonlinear ◽  
Load Analysis ◽  
Complementary Equation

This paper first adopts variational inequation—the method of linear complementary equation. We use this method to analyses the elastoplastic limit load of space grid structure. This is a way to resolve the nonlinear question. Adopting this method to resolve the limit load of space grid structure avoid some drawback caused by adopting iteration method. We only need do some limited compute to a load-increment then we can obtain consequence, which fit in with all condition. Particularly, though adopting the method of linear complementary equation, we can control the value of limit load, make the calculated load can not exceed the limit load. Once exceeding, computer can decrease load- increment automatically and load again till getting the limit load of structure. Based on elastoplastic limit load analysis, this paper has considered big deformation impact on the limit load of bspace grid structure. We have made analysis of doubly nonlinear limit loads under the condition of coupling out of elastoplastic big deformation. The method and theory of this paper can combine with all kinds of single rod mechanics model.

Temperature Field Analysis of Space Grid Structures

2012 ◽  
Vol 204-208 ◽  
pp. 877-880
Author(s):  
Guang Yong Wang ◽  
Na Wang
Keyword(s):  
Heat Transfer ◽  
Temperature Field ◽  
Element Model ◽  
Field Analysis ◽  
Temperature Analysis ◽  
Grid Structure ◽  
Space Grid ◽  
Steel Members ◽  
Proposed Model ◽  
In Fire

A heat transfer finite element model for the temperature analysis of space grid structures considering the conduction and protection thickness of the steel members in fire is proposed, and the temperature field of a typical grid structure is analyzed by using the proposed model. The results show that the proposed model is reasonable.

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