The Influence on Bundled Tube Structure of Super-High Building Caused by Changing-Rigidity of the Ground or the Foundation

With the rapid development of the subgrade or the foundation over recent years in China, there is a growing tendency for tall building to orient its directions to the more numbers of plies, much higher and more complex in plane layout. Moreover, some buildings adopt tube structure or bundled tube structure and so on to diversified development. The changing-rigidity of ground or foundation has obvious effects on superstructure when the buildings act on much higher and huge type. Therefore, in view of this, taking the bundled-tube structure of super high building for example in the paper, the method, equal the bundled tube structure of super high building and its foundation to stiffening-thin wall-combination, is adopted, then based on the three-dimensional model, the rigidity of subgrade and foundation’s effect on superstructure are given by calculation with semi-analysis. The calculated result indicated that there exist remarkable influence on sideway of the top end, the sideway between layers, the warp of the tube and the stresses between the subgrade and the bottom of the foundation.

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The Influence of Static Response of Super Tall Building Mega-Frame Structure Caused by Changes of Frame Rigidities

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.166-169.277 ◽

2012 ◽

Vol 166-169 ◽

pp. 277-281

Author(s):

Xiang Dong Xie ◽

Xuan Wang ◽

Li Qin

Keyword(s):

Differential Equation ◽

Analytical Approach ◽

Three Dimensional ◽

Tall Building ◽

Frame Structure ◽

Thin Wall ◽

Static Response ◽

Dimensional Model ◽

Three Dimensional Model ◽

Frame Rigidity

The superstructure and its foundation of a super tall building mega-frame structure are simplified equivalently and continuously to a stiffened-thin-wall tube on semi-infinite elastic subgrade. And the influences of static response on super tall building mega-frame structure caused by changes of frame rigidity are computed and analyzed with the three-dimensional model by semi-analytical approach based on ODE(Ordinary Differential Equation) Solver, considering the interactions of subgrade, foundation and superstructure. Then some valuable conclusions are obtained through analyzing the reasonable results of the numerical example.

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Design of Hydraulic Transmission Bicycle Based on Top-Down Method

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.468-471.867 ◽

2012 ◽

Vol 468-471 ◽

pp. 867-870 ◽

Cited By ~ 1

Author(s):

Yan Hong Yang ◽

Xiang Qiang Zhong

Keyword(s):

Rapid Development ◽

Three Dimensional ◽

New Product ◽

Feature Modeling ◽

Assembly Model ◽

Dimensional Model ◽

Three Dimensional Model ◽

Top Down ◽

Skeleton Model ◽

New Type

Hydraulic transmission bicycle is a new type of vehicle. It is crucial for founding an effective method of rapid development for new product. The concept drafting of hydraulic transmission bicycle was drawn, the multiple layer assembly model was built based on parametric feature modeling technique, the skeleton model and total design of hydraulic transmission bicycle was accomplished by top-down method and drawings of relevant parts based on three-dimensional model were created. The result shows that top-down method provides a new idea to improve the rapid design of product’s updates.

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Research on the Issue of LED’s Cooling Based on Heat Conduction Equations

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.507.137 ◽

2012 ◽

Vol 507 ◽

pp. 137-141

Author(s):

Zhi Qin Huang ◽

Pei Ying Quan ◽

Yong Qing Pan

Keyword(s):

Heat Conduction ◽

Steady State ◽

Heat Conduction Equation ◽

Rapid Development ◽

Three Dimensional ◽

Conduction Equation ◽

Dimensional Model ◽

Three Dimensional Model ◽

One Dimensional ◽

The One

With the rapid development of power type LED, the issue of the cooling of LED has been prominent. How to make the heat generated by LED chip go out quickly in order to cool the LED chip has become an urgent problem. The form of heat goes through the substrate has been widely used and has become the best way to solve the heat problem. There are three types of LED substrate. They are metal substrate, ceramic substrate and composite substrate. At first, In this paper I analyze the theoretical of three-dimensional non-steady state and steady state heat conduction equation, then the three-dimensional model is simplified as one-dimensional model and I get the results of heat conduction equation under the one-dimensional stationary and non-steady state.

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