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Conceptual Bridge Design

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Conceptual Bridge Design 1.1 1.2 Introduction Preliminary Design Introduction • General Considerations for the Design of Bridge Schemes • Theoretical Basic Method of Preliminary Design • Choice of Final Alternative for Reinforced–Concrete Bridges 1.3 Final Design Basic Trends in the Design of Bridges • Creative Trends • Practical Trends • Basic Assumptions of Design • Basic Requirement of the Bridge under Design • Aesthetic Requirements • Requirement for Scientific Research • Basic Parameters of the Bridge • Bridge System • Size of Separate System • Type of Span Construction • Type of Supports. | Troitsky M.S. Conceptual Bridge Design. Bridge Engineering Handbook. Ed. Wai-Fah Chen and Lian Duan Boca Raton CRC Press 2000 Section I Fundamentals 2000 by CRC Press LLC 1 Conceptual Bridge Design M. S. Troitsky Concordia University 1.1 Introduction 1.2 Preliminary Design Introduction General Considerations for the Design of Bridge Schemes Theoretical Basic Method of Preliminary Design Choice of Final Alternative for Reinforced-Concrete Bridges 1.3 Final Design Basic Trends in the Design of Bridges Creative Trends Practical Trends Basic Assumptions of Design Basic Requirement of the Bridge under Design Aesthetic Requirements Requirement for Scientific Research Basic Parameters of the Bridge Bridge System Size of Separate System Type of Span Construction Type of Supports 1.4 Remarks and Conclusions 1.1 Introduction Planning and designing of bridges is part art and part compromise the most significant aspect of structural engineering. It is the manifestation of the creative capability of designers and demonstrates their imagination innovation and exploration 1 2 . The first question designers have to answer is what kind of structural marvel bridge design are they going to create The importance of conceptual analysis in bridge-designing problems cannot be emphasized strongly enough. The designer must first visualize and imagine the bridge in order to determine its fundamental function and performance. Without question the factors of safety and economy shape the bridge designer s thought in a very significant way. The values of technical and economic analysis are indisputable but they do not cover the whole design process. Bridge design is a complex engineering problem. The design process includes consideration of other important factors such as choice of bridge system materials dimensions foundations aesthetics and local landscape and environment. To investigate these issues and arrive at the best solution the method of preliminary design is the subject of the .