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Tài liệu tham khảo Công nghệ xây dựng duy tu bảo dưỡng cầu chuyên ngành xây dựng bằng tiếng Anh - Bắt đầu dự án ( Beginning the Project) | Source Bridge Engineering 2 Beginning the Project There are several important issues which concern the bridge engineer prior to commencement of design. Before any design can begin there is the issue of how bridge projects are selected and funded. Then there is the issue of which standards and references should be utilized by the engineer during design. Finally when design actually begins in earnest what field data and in the case of a rehabilitation project record data are required to commence and eventually complete the work. This section of the text is intended to provide the reader with an overview of the project inception phase of a highway bridge design. While many engineers tend to focus most intently on the nuts and bolts of the actual design it is important to recognize the importance of the issues identified above and how they affect the underpinnings of any bridge design project. Quite often design projects can go astray because of a failure to collect proper field data a misunderstanding of the owner s wishes and intents or even an improper use of reference material. Section Overview In this section we will look at the major issues which face a bridge engineer prior to design. We begin with a discussion of how highway projects are funded. Following this is a look at some of the important reference material designers must consult. The section concludes with a detailed presentation of the important issue of bridge inspection and how it affects the design of new bridges and the rehabilitation of existing bridges. 2.1 PROJECT FUNDING The design and rehabilitation of highway bridges is an activity which has considerable financial demands. Rehabilitation of a medium size overpass structure can easily cost over a million dollars. When considering the vast number of structures in need of repair it is easy to see why national infrastructure programs consistently weigh in with multi-billion dollar price tags. An example of the magnitude of these costs can be found
