Bridge Form Quality Assessment

In the preface, the concept of bridge form quality assessment is defined; Then the research intention and methods are introduced; and then the main content of the dissertation is presented simply. In chapter 2, the essence and principles of aesthetics are summarized. The relationship between aesthetics and art is expatiated. Then the four elementary principles of bridge aesthetics are sum up. The content of bridge form quality assessment is derived from choosing 'the most beautiful bridges in 20^th century' through public appraisal; assessment factors are analyzed briefly. Four characters of criterion are discussed by analyzing the criterion of bridge form quality assessment.In chapter 3, historic evolvement of bridge form development is retrospect. The role which bridge plays in society economy is analyzed, and the author points that the development of bridge and economy is dependent on each other. The relationship between bridge and culture is analyzed, and the culture character of bridge is sum up. The relationship between bridge and affairs is analyzed, and detail conclusion is obtained.In chapter 4, development course of bridge form is summarized firstly and the author pointes that the development of bridge form is always depended on the development of architecture material, technique level, mechanics theory, math theory, etc.. Then the development course of bridge material is studied. Certain rules between material and bridge are indicated by analyzing the fact that different material has the influence on bridge form in different conditions such as timber, stone, iron and steel and concrete etc.. Then technique development course of bridge is researched in detail. In the chapter two aspects of bridge structure quality assessment are brought forward as mechanics aesthetics and innovation aesthetics. For mechanics aesthetics assessment, the influence of mental temptation force and path of force transfer took on bridge form is studied, and then detail expatiation is carried out according to different bridge form type. For innovation aesthetics assessment, four assessment factors are put forward for the first time through analyzing the dialectic relationship between tradition and innovation. The point of propriety of bridge form is advanced for the first time and idiographic content of it is expatiated.In chapter 5, the author studies systemically almost all the aspects of bridge form vision quality which includes proportion esthetics, color esthetics, rhythm esthetics, space esthetics, environment esthetics, night piece esthetics and whole esthetics. Then the viewpoint of 'less is more' is put forward by contraposing the broad dispute at present about bridge decoration; the function of bridge outbuildings is analyzed and summarized; six feasible suggestions are brought forward according to the present situation of building indicative city bridges. And then the assessment key points of layout of bridges, city and watercourses are put. Finally, according to the wide-used bridge impression drawings, the author considers that they should be cautious to use and some pieces of advice are brought out.