基于GIS的橋梁狀態(tài)評估信息系統(tǒng)研究.pdf

1、西安科技大學(xué)碩士學(xué)位論文基于GIS 的橋梁狀態(tài)評估信息系統(tǒng)研究姓名：侯林濤申請學(xué)位級別：碩士專業(yè)：地圖學(xué)與地理信息系統(tǒng)指導(dǎo)教師：邱春霞2011Subject ： Research on Information System of Evaluation of Bridge Based on GIS Specialty ：Cartography and Geographic Information System Name ：H

2、ou Lin-tao (Signature) Instructor ：Qiu Chun-xia (Signature) ABSTRACT Some foreign countries have developed some mature bridge management systems，but it can not

3、 be used directly in our country because the management system and the national code for repair and maintenance is different．Some bridge management systems are developed in our country，but they are all running in test．So

4、 the main research subject in the thesis is to study some problems for developing suitable bridge management system for our country bridge management． The contents of the research work are summarized below： (1) Basing on

5、 the research on present situation of bridge, points out the problem that defect state of bridge do not establish unified effective evaluation standard, and hardly reflect severity of defects of components has influence

6、on the whole bridge. Some standards and evaluation approachs are not according to concrete bridge style. Thus, according to analytic hierarchy process and constant weighting method put forward uncertain analytic hierarch

7、y process and variable weighting method. (2)According to the defact of visual detection evaluation, which caused by human factors, and basing on the information of bridge defect, the paper puts forward uncertain analyti

8、c hierarchy process and variable weighting method as tools to evaluate by different analytic hierarchy models and rational weight distribution to the bridges which have different structures, because it can fully reflect

9、in overall evaluation when individual components exist great defects. This method can make bridges evaluation more scientific and rational, and make evaluation process easy. (3)Combining with GIS, targeted with getting t