Structural Design Concepts for the Canadian National Tower, Toronto, Canada

1975 ◽  
Vol 2 (2) ◽  
pp. 123-137 ◽  
Author(s):  
Franz Knoll
Keyword(s):  
Structural Design ◽  
Functional Requirements ◽  
Basic Principles ◽  
General Review ◽  
Design Concepts ◽  
Construction Methods

This paper provides a general review of the basic principles for the structural design of the CN Tower. A discussion of the design is provided relating to each of the major portions of the structure. The following portions are treated separately and in relation to each other: concrete tower shaft; foundation; and upper accommodation building. Choice of geometry, materials, and construction methods is explained with respect to technical, architectural, and functional requirements and restrictions.

Application of Design Axioms to Marine Design Problems

2000 ◽  
Author(s):  
Y. S. Yang ◽  
B. S. Jang ◽  
Y. S. Song ◽  
Y. S. Yeon ◽  
S. H. Do
Keyword(s):  
Structural Design ◽  
Probabilistic Approach ◽  
Design Stage ◽  
Design Parameters ◽  
Independence Axiom ◽  
Preliminary Design ◽  
Functional Requirements ◽  
Mapping Procedure ◽  
Information Axiom ◽  
The Given

Abstract The Design Axioms proposed by N. P. Suh consist of Independence Axiom and Information Axiom. The Independence Axiom assists a designer in generating good design alternatives by considering the relations between the functions and the physical product using a hierarchical mapping procedure. The Information Axiom, which is related to the probability of achieving the given functional requirements, can be used as a criterion for the selection of the best solution among the proposed alternatives in the conceptual or preliminary design stage. In the early stages of marine design, especially ship design, there exists a lot of uncertainty because of the size and complexity of a marine vehicle. The uncertainty often leads to a probabilistic approach rather than a deterministic approach. The ship designs are mostly routine design to change an existing design case a little. In this paper, the availability of the Design Axioms in this marine design field will be investigated through three examples. In the conceptual design of a thruster, the Independence Axiom will be proven to be useful in examining the independence of functional requirements at each level of the decomposition process. In main engine selection example, the Information Axiom will be used for selecting the best solution among the given alternatives by estimating their respective information contents under the uncertain and ambiguous condition. In the structural design, some difficulties arise in maintaining the independence of functional requirements in general because the number of design parameters is greater than that of functional requirements. Therefore, there is much trouble in generalizing the application of the Design Axioms for the structural design, especially for the preliminary design where the principal design parameters of a design object have to be determined after its shape fixed. This paper will try a generalized approach to the similarity-based design where it is important to select which parameters should be changed and in what order they should be changed. How to make use of the Design Axioms will be showed in a barge design example. However, a lot of research is needed for the generalized application of the Design Axioms for the structural design.

Design of ITER TF Magnet Cryostat Feeder Through

2010 ◽  
Author(s):  
T. Zhou ◽  
Y. Song
Keyword(s):  
Structural Design ◽  
Heat Load ◽  
Room Temperature ◽  
Electrical Power ◽  
Safety Margin ◽  
Mechanical Analysis ◽  
Functional Requirements ◽  
Radiation Shield ◽  
Mechanical Loads ◽  
Transient Thermal

International Thermonuclear Experimental Reactor (ITER) TF feeder systems convey the cryogenic supply and electrical power to the TF coils. The Cryostat Feed-through (CFT) includes the straight feeder part from the cryostat wall to the S-Bend Box (SBB). It is the bottleneck of the feeders. The huge Lorentz-force is a challenge for the CFT design. So the reasonable distribution and structural design of the internal and external supports are important. The CFT include the cold (cryogenic) to warm (room temperature) transitions. It is highly integrated with the cryo-pipes, the busbars, the superconductor joints, the thermal radiation shield and the instrumentation pipes and so on. The cryogenic and electrical requirements, the vacuum and mechanical requirements, and so on are considered when the CFT is designed. This paper presents the functional requirements on the TF CFT, gives its structure. The supports are designed and arrayed according to their mechanical or thermal function separately to stand the huge mechanical loads and isolate the conducting heat load from room temperature respectively. The assembly scheme is also described. Mid-joint and cryostat joint are designed to give the facility for the assembly on location. The mechanical analysis result shows the stress in the stainless steel and G10 material both are within the materials stress safety margin. The heat load to the cryogenic pipes and busbars are also less than the requirement 15W. Transient thermal analysis of global feeder model indicates that 32 days are needed for the feeder components to cool down to the required condition.

Design and Verification of a New Computer Controlled Seating Buck

2006 ◽  
Author(s):  
Nanxin Wang ◽  
Vijitha Kiridena ◽  
Gianna Gomez-Levi ◽  
Jian Wan ◽  
Steven Sieczka ◽  
...  
Keyword(s):  
Design Process ◽  
Cycle Time ◽  
Dimensional Accuracy ◽  
Vehicle Design ◽  
Functional Requirements ◽  
Package Design ◽  
Design Concepts ◽  
Design Cycle ◽  
Computer Controlled ◽  
High Level

Appraising vehicle package design concepts using seating bucks — physical prototypes representing vehicle package, is an integral part of the vehicle package design process. Building such bucks is costly and may impose substantial burden on the vehicle design cycle time. Further, static seating bucks lack the flexibility to accommodate design iterations during the gradual progression of a vehicle program. A “Computer controlled seating buck”, as described in this paper, is a quick and inexpensive alternative to the traditional seating bucks with the desired degree of fidelity. It is particularly useful to perform package and ergonomic studies in the early stages of a vehicle program, long before the data is available to build a traditional seating buck. Such a seating buck has been developed to accommodate Ford vehicle package design needs. This paper presents the functional requirements, the high level conceptual design of how these requirements are realized, and the methods to verify, improve and sustain the dimensional accuracy and capability of the new computer controlled seating buck.

The Application of Seismic Conceptual Design in the Shear Wall Structure System

2011 ◽  
Vol 243-249 ◽  
pp. 4028-4032
Author(s):  
Xiao Yan Huang ◽  
Fei Zhao ◽  
Chao He Chen
Keyword(s):  
Conceptual Design ◽  
Seismic Design ◽  
Structural Design ◽  
Tall Buildings ◽  
Shear Wall ◽  
Wall Structure ◽  
Concept Design ◽  
Element Analysis ◽  
Basic Principles ◽  
Structural Layout

This paper illustrates the basic principles of "concept design" in seismic design of tall buildings, and presents the application of conceptual design in a specific shear wall structural design. Two different structural layout schemes of this structure are compared using a finite element analysis program.

Innovative Design of Range Hood Based on Folding Structure

2012 ◽  
Vol 271-272 ◽  
pp. 1323-1327
Author(s):  
Mei Yang ◽  
Ning Ding ◽  
Qi Fang Bo ◽  
Peng Han
Keyword(s):  
Product Design ◽  
Modern Society ◽  
Structural Features ◽  
Structure Design ◽  
Functional Requirements ◽  
Innovative Design ◽  
Design Concepts ◽  
Pull Out ◽  
Innovative Solutions ◽  
Folding Structure

In modern society, people have not only the functional requirements of the product, but also the pursuit in its spiritual sustenance. Based on the concept of the folding structure, this thesis extracts the essence of the folding structure design from typical product design, then analyzes the style and structural features of range hood in depth, puts forward the design concepts and innovative solutions of range hood, and, designs a pull-out range hood which saves space and achieves a combination of Chinese traditional elements with modern design perfectly.

scholarly journals Metodo mistoak Hezkuntza-ikerkuntzan

Tantak ◽  
2018 ◽  
Vol 30 (1) ◽  
pp. 87-111
Author(s):  
Karlos Santiago Etxeberria ◽  
Olaia Jiménez Arrieta ◽  
J.F. Lukas Mujika
Keyword(s):  
Education Research ◽  
Mixed Methods ◽  
Educational Research ◽  
Mixed Method ◽  
Basic Principles ◽  
General Review ◽  
Research Paradigms

This article sets out to provide a general review of the basic principles of what is known as “methodological complementarity” in education research. Firstly, it addresses the context in which mixed methods have emerged to then go on to review some of the definitions. After reflecting on the advantages and limitations of these methods, several designs of mixed methods with examples drawn from education research and assessment are presented. The article concludes with an exposition of the discussion about the quality of the research conducted with a mixed method. Keywords: Educational Research, Research paradigms, Methodological Complementarity, Mixed methods.

scholarly journals Cold-formed Steel Framing of a Dairy Products Warehouse in Brest, Belarus

2021 ◽  
Vol 350 ◽  
pp. 00014
Author(s):  
Vasili Stsepaniuk ◽  
Andrei Shuryn ◽  
Dmitry Zhdanov ◽  
Pavel Tsikhanchuk
Keyword(s):  
Structural Design ◽  
Dairy Products ◽  
Structural Features ◽  
Basic Principles ◽  
Framed Structures ◽  
Analysis And Design ◽  
Advantages And Disadvantages ◽  
Steel Framing ◽  
Cold Formed Steel

The main advantages and disadvantages of cold-formed steel framed structures are discussed, and the basic principles for their analysis and design are considered. Some specific structural features of the thinwalled cold-formed steel framing of a dairy warehouse designed by Proektnauka LLC (Brest, RB), are described, and several recommendations so as to improve its structural design are given.

scholarly journals Panoramic optical and near-infrared SETI instrument: optical and structural design concepts

2018 ◽  
Author(s):  
Avinash Uttamchandani ◽  
Jérôme Maire ◽  
Shelley A. Wright ◽  
Maren Cosens ◽  
Samuel A. Chaim-Weismann ◽  
...  
Keyword(s):  
Structural Design ◽  
Near Infrared ◽  
Design Concepts
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