Steel Structures Practical Design Studies

 Steel Structures Practical Design Studies

Steel Structures Practical Design Studies

The main purpose of the second edition is again to present principles, relevant considerations and sample designs for some of the major types of steel-framed buildings . All buildings can be framed in different ways with different types of joints and analysed using different methods. Member design for ultimate conditions is specified. Projects are selected to show alternative designs for the same structure.

Designs are now to conform to limit state theory the British steel code and the new Eurocode. Design principles are set out briefly and designs made to the British code only. Reference is made to the Eurocode in one special case. Many more design calculations and checks are required for the limit state code than for the previous elastic code and thus not all load cases or detailed checks can be carried out for every design project. However, further necessary design work is indicated in these cases.

Though computer methods, mainly for analysis, but also increasingly used for member and connection design are now the design office procedural norm, approximate, manual methods are still of great importance. These are required mainly to obtain sections for computer analysis and to check final designs. The book, as in the case of the first edition, is aimed at final year students, candidates on master degree courses in structural engineering and young engineers in industry. Fundamental knowledge of the methods of structural analysis and design from a basic design course is assumed.

The purpose of the book is to present the principles and practice of design for some of the main modern structures. It is intended for final year degree students to show the application of structural engineering theory and so assist them to gain an appreciation of the problems involved in the design process in the limited time available in college. In such a presentation many topics cannot be covered in any great detail. Design is a decision-making process where engineering judgement based on experience, theoretical knowledge, comparative design studies etc., is used to arrive at the best solution for a given situation.
(a) discussion of conceptual design and planning;
(b) presentation of the principles and procedures for the various methods of analysis and design;
(c) detailed analysis and design for selected structures. Preliminary design studies are made in other cases where the full treatment of the problem is beyond the scope of this book. In detailed design, the results are presented in the form of sketches showing framing plans, member sizes and constructional details.

Although the book is primarily concerned with the design of steel structures, important factors affecting both the overall design and detai required are discussed briefly. These include the choice of materials, type of foundations used, methods of jointing, the fabrication process and erection methods, Other design considerations such as fatigue, brittle fracture, fire resistance and corrosion protection are also noted.

The use of computers in design is now of increasing importance. Where required, computer programs are used in the book for analysis. While examples of computer-aided design have not been included, a project on this topic is listed at the end of the book. It is felt that the student must thoroughly understand design principles before using design programs. In college, the student is instructed through formal lectures backed by reading from textbooks and journals and by consultation with staff and fellow students. The acquisition of knowledge and the exchange of ideas help him to develop his expertise and judgement and to make sound decisions.


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